Issue: 19221201

Friday, December 1, 1922
DECEMBER 1922
6
True
101
Monday, January 12, 2015

Articles
cover
0_1
0_1
[no value]
[no value]
Popular Science
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0001.xml
advertisement
0_2
0_2
[no value]
[no value]
T. G. COOKE
[no value]
T. G. COOKE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0002.xml
advertisement
1
1
[no value]
[no value]
National Salesmen’s Training Association
[no value]
National Salesmen’s Training Association
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0003.xml
tableOfContents
2
2
[no value]
[no value]
CONTENTS
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0004.xml
article
2
2
[no value]
[no value]
Why We Catch Cold
[no value]
[no value]
[no value]
[no value]
YOU would hardly believe that we Americans in this enlightened age are committing a silly crime all winter long against good health. Such, nevertheless, is the fact— a fact made clear in the arresting article by Harry A. Mount, on page 32 of this issue.
PopularScience_19221201_0101_006_0005.xml
article
2
2
[no value]
[no value]
What Is Your Hobby?
[no value]
[no value]
[no value]
[no value]
MEN who ought to know say that the joy of a home work bench—the delight of making things with tools—isn't a simple pastime, but a tonic for better health, longer life, and greater success in your regular job. A short time ago, Dr. Eugene Lyman Fisk, medical director of the Life Extension Institute, delivered, under the auspices of POPULAR SCIENCE MONTHLY, a radio talk on “The Health Value of Hobbies”— a talk that was broadcast nationally.
PopularScience_19221201_0101_006_0006.xml
advertisement
3
3
[no value]
[no value]
Alexander Hamilton Institute
[no value]
Alexander Hamilton Institute
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0007.xml
article
4
4
[no value]
[no value]
Why Not Take this Trip Next Month?
With Popular Science Monthly Down the Endless Trail of Human Knowledge
[no value]
[no value]
[no value]
DO YOU know the actual facts about human evolution? Since this year’s violent revival of the historic debate over Darwin’s theory, no man will consider himself well informed unless he does know the facts. Don’t miss the fascinating picture story of evolution to appear in a forthcoming issue, showing ancient monsters and our own apelike ancestors.
PopularScience_19221201_0101_006_0008.xml
article
4
4
[no value]
[no value]
Your Chance to Visit a World of Wonders
[no value]
[no value]
[no value]
[no value]
ADMISSION to a personally conducted tour through these realms of adventure and romance, with scores of side trips into every important field of science and invention is offered you next month and every month when you purchase POPULAR SCIENCE MONTHLY.
PopularScience_19221201_0101_006_0009.xml
article
4
4
[no value]
[no value]
Will Civilization Move to the Arctic?
[no value]
[no value]
[no value]
[no value]
IN THE January issue, Vilhjalmur Stefansson, the great Arctic explorer, writes an eye-opening article on the probable development of a great Empire of the North, where hardy adventurers will find new stores of wealth to exploit. Besides a dozen other features of equal importance to those mentioned here, the January issue will be crammed with articles and Home Workshop items of helpful personal service.
PopularScience_19221201_0101_006_0010.xml
advertisement
5
5
[no value]
[no value]
NELSON DOUBLEDAY, Inc.
[no value]
NELSON DOUBLEDAY, Inc.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0011.xml
advertisement
6
6,8,10,12,14,16,18,20
[no value]
[no value]
QUICK-ACTION ADVERTISING
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0012.xml
advertisement
7
7
[no value]
[no value]
Independent Corporation
[no value]
Independent Corporation
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0013.xml
advertisement
9
9
[no value]
[no value]
Coyne Trade and Engineering School
[no value]
Coyne Trade and Engineering School
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0014.xml
advertisement
10
10
[no value]
[no value]
THEO. AUDEL & CO.
[no value]
THEO. AUDEL & CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0015.xml
advertisement
10
10
[no value]
[no value]
CHICAGO AUTOMOTIVE INSTITUTE
[no value]
CHICAGO AUTOMOTIVE INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0016.xml
advertisement
11
11
[no value]
[no value]
FRANKLIN INSTITUTE
[no value]
FRANKLIN INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0017.xml
advertisement
12
12
[no value]
[no value]
FREDERICK J. DRAKE & CO.
[no value]
FREDERICK J. DRAKE & CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0018.xml
advertisement
12
12
[no value]
[no value]
The W. L. EVANS SCHOOL
[no value]
The W. L. EVANS SCHOOL
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0019.xml
advertisement
12
12
[no value]
[no value]
U. S. SCHOOL OF FINGER PRINTS
[no value]
U. S. SCHOOL OF FINGER PRINTS
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0020.xml
advertisement
12
12
[no value]
[no value]
CHEMICAL INSTITUTE OF NEW YORK, Inc.
[no value]
CHEMICAL INSTITUTE OF NEW YORK, Inc.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0021.xml
advertisement
13
13
[no value]
[no value]
CHICAGO ENGINEERING WORKS
[no value]
CHICAGO ENGINEERING WORKS
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0022.xml
advertisement
14
14
[no value]
[no value]
U. S. SCHOOL OF MUSIC
[no value]
U. S. SCHOOL OF MUSIC
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0023.xml
advertisement
14
14
[no value]
[no value]
MEYER BOTH COLLEGE
[no value]
MEYER BOTH COLLEGE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0024.xml
advertisement
14
14
[no value]
[no value]
American Electrical Association
[no value]
American Electrical Association
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0025.xml
advertisement
15
15
[no value]
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0026.xml
advertisement
16
16
[no value]
[no value]
The Washington School of Art, Inc.
[no value]
The Washington School of Art, Inc.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0027.xml
advertisement
16
16
[no value]
[no value]
The ALFRED JOHNSON SKATE CO.
[no value]
The ALFRED JOHNSON SKATE CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0028.xml
advertisement
16
16
[no value]
[no value]
AUTHORS’ PRESS
[no value]
AUTHORS’ PRESS
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0029.xml
advertisement
16
16
[no value]
[no value]
Tangley Company
[no value]
Tangley Company
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0030.xml
advertisement
17
17
[no value]
[no value]
NATIONAL RADIO INSTITUTE
[no value]
NATIONAL RADIO INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0031.xml
advertisement
18
18
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0032.xml
advertisement
19
19
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0033.xml
advertisement
20
20
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0034.xml
advertisement
20
20
[no value]
[no value]
Advertisement: POPULAR SCIENCE MONTHLY
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
PopularScience_19221201_0101_006_0035.xml
advertisement
21
21
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0036.xml
advertisement
22
22
[no value]
[no value]
American School
[no value]
American School
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0037.xml
advertisement
22
22
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19221201_0101_006_0038.xml
advertisement
23
23
[no value]
[no value]
HEALTH BUILDERS, Inc.
[no value]
HEALTH BUILDERS, Inc.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0039.xml
article
24
24
[no value]
[no value]
Meet These MEN OF THE HOUR In the World of Science
[no value]
[no value]
[no value]
[no value]
THOMAS GASKELL ALLEN, who, though he makes no claim to technical knowledge of the science of hydraulics and “simply rushed in where angels feared to tread,” has built in England what Sir Oliver Lodge declares to be one of the greatest inventions of all time— the hydrautomat—which, by joint application of the weight of a column of water and atmospheric pressure, induces the water of streams to “lift itself by its boot-straps” to almost any desired altitude.
PopularScience_19221201_0101_006_0040.xml
advertisement
25
25
[no value]
[no value]
LITTLE LEATHER LIBRARY CORPORATION
[no value]
LITTLE LEATHER LIBRARY CORPORATION
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0041.xml
advertisement
26
26
[no value]
[no value]
A. H. GREBE & CO., Inc.
[no value]
A. H. GREBE & CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0042.xml
article
27
27,28,111,112,113,114
[no value]
[no value]
How “Borax” Smith Came Back
[no value]
[no value]
[no value]
Dr. E. E. Free
SPECTACULAR in scene, almost theatric in its incidents, crammed like an adventure novel with the doings of some of the most extraordinary characters who ever lived, the story of borax stands supreme in interest among the romances of industry.
PopularScience_19221201_0101_006_0043.xml
article
29
29
[no value]
[no value]
Making Powerful New Aero Engine “Commit Suicide”
[no value]
[no value]
[no value]
[no value]
HOW long would it take your auto engine, running constantly under full throttle, to “commit suicide”? This question, applied not to an automobile, but to a marvelous new airplane engine, developed for the United States Navy, is going to be answered soon by an extraordinary test in which the engine—mounted on a block in a bomb-proof shelter, and kept under observation by experts working in eight-hour shifts— will be fed all the gasoline, oil, and water it requires, and will be allowed to run itself to destruction.
PopularScience_19221201_0101_006_0044.xml
article
29
29,115,116
[no value]
[no value]
My Radio Success without an Aerial
[no value]
[no value]
[no value]
Armstrong Perry
WHEN Radio and I were kids together, I used to enjoy walking around the edges of high roofs and promenading on back yard fences to erect my aerials. But as time passes I must confess I hate the job of putting up an aerial, especially on these cold days.
PopularScience_19221201_0101_006_0045.xml
article
30
30,31
[no value]
[no value]
New Turbine Locomotive Is Pushed by Its Tender
[no value]
[no value]
[no value]
Wilfred Ogden
A MODERN power plant on wheels, combining in an amazingly compact form the most advanced fuel-saving and steam-conserving devices of a highly efficient power station—such is the revolutionary turbine locomotive perfected by a Swedish engineer, Fred Ljungstrom.
PopularScience_19221201_0101_006_0046.xml
article
30
30
[no value]
[no value]
How About American Railways?
[no value]
[no value]
[no value]
[no value]
WHILE more powerful, more complicated, and more efficient, the huge Pacific type locomotive that draws the Twentieth Century Limited (at top) is in some important respects little more than an overgrown copy of its diminutive reciprocating granddaddy—the New York and Harlem Railway’s “Big Six” of half a century ago.
PopularScience_19221201_0101_006_0047.xml
article
32
32,33,34,110,111
[no value]
[no value]
Why Our Homes Breed Winter Sickness
Evaporating 20 Gallons of Water Daily in Average Home Is Necessary for Health— How You Can Cut Down Doctors' Bills by Increasing Humidity of the Air You Breathe Indoors
[no value]
[no value]
Harry A. Mount
THE room in which you sit as you read this is probably dryer than the dryest desert. This fact you can easily verify for your-self, and, finding it true, you may be sure your home in winter is a most unhealthful place in which to live. For this fact you have the word of a number of competent scientists and investigators, each of whom, by a different method, has reached the same conclusion:
PopularScience_19221201_0101_006_0048.xml
article
32
32
[no value]
[no value]
Why Your Body Needs “Watered” Air
[no value]
[no value]
[no value]
Dr. C. Ward Crampton
JUST why the dryness of the average heated house or apartment in winter is the cause of colds and even more serious chronic diseases is explained in a statement exclusively for POPULAR SCIENCE MONTHLY readers by Dr. C. Ward Crampton, formerly director of physical training in New York City public schools and international authority on physical training and general hygiene of the body.
PopularScience_19221201_0101_006_0049.xml
article
33
33
[no value]
[no value]
Nuggets of Truth about Relative Humidity and Your Health
[no value]
[no value]
[no value]
[no value]
"It Isn't the Heat It's the Humidity" This familiar summer experience of feeling too hot one day and very comfortable the next, even while the thermometer reads the same, proves how humidity affects bodily comfort It Isn't the Blizzard that Chills You Extremes of heat and cold are not unhealthful.
PopularScience_19221201_0101_006_0050.xml
article
33
33
[no value]
[no value]
Two Efficient Humidifiers You Can Make
[no value]
[no value]
[no value]
[no value]
THESE types of humidifiers for steam, hot water, or vapor heating systems, designed by E. P. Lyon, dean of the University of Minnesota Medical School, may be constructed easily and cheaply. They are attached to the tops of radiators. Complete working drawings and details of construction will appear in the Home Workshop Department next month.
PopularScience_19221201_0101_006_0051.xml
article
34
34
[no value]
[no value]
Factory "Weather Maker" Saves Health and Dollars
[no value]
[no value]
[no value]
[no value]
ABOVE is explained in a simplified way the revolutionary humidifying system invented by Willis Carrier (inset), which is saving thousands of dollars to manufacturers and preserving the health of workers. Out-side air blown into a spray chamber comes in contact with a very fine mist of water.
PopularScience_19221201_0101_006_0052.xml
article
35
35
[no value]
[no value]
Elevating Platform Lifts Baggage to Car Floor
[no value]
[no value]
[no value]
[no value]
SUPPLYING what is said to be the first important improvement in rail-road platform trucks in many years, a truck now being adopted by many rail-roads consists of a platform that can be raised and lowered to car height by a worm gear operated by a hand crank.
PopularScience_19221201_0101_006_0053.xml
article
35
35
[no value]
[no value]
Mastodons and Palm Trees Compete in World’s Ivory Market
[no value]
[no value]
[no value]
[no value]
LONG dead mastodons from Siberia, walruses from the arctic seas, and elephants from Africa and India contribute to the million dollars’ worth of ivory now in storage on the ivory docks of London. Fully as much more can be found at Antwerp, since these two seaports are the two principal buyers of ivory.
PopularScience_19221201_0101_006_0054.xml
article
35
35
[no value]
[no value]
Jolting Machine Tests Shipping Boxes
[no value]
[no value]
[no value]
[no value]
SHIPPING boxes under test at the United States Forest Products Laboratory at Madison, Wis., are now being subjected by machine to the same type of rough usage they would receive if they were part of the contents of a freight car. The testing machine was specially designed for the work.
PopularScience_19221201_0101_006_0055.xml
article
35
35
[no value]
[no value]
Voice Records to Last 10,000 Years
[no value]
[no value]
[no value]
[no value]
TO SUPPLEMENT the photographic images of famous men that will be handed down to posterity, a voice museum recently opened in Germany will make and store phonographic records of the voices of persons internationally distinguished. By means of a secret chemical substance applied to the record, Professor Doegen, the originator of the museum, declares that the records will last 10,000 years.
PopularScience_19221201_0101_006_0056.xml
article
36
36
[no value]
[no value]
Honing Tool Grinds Cylinders in Hour
[no value]
[no value]
[no value]
[no value]
REGRINDING and truing of auto-mobile engine cylinders—work that usually means loss of car service for a day or longer—is completed in an hour by a honing attachment recently perfected, which may be operated in connection with any electric motor drive, an electric drill, or other source of power.
PopularScience_19221201_0101_006_0057.xml
article
36
36
[no value]
[no value]
Handy Pocket Comb and Brush Combined
[no value]
[no value]
[no value]
[no value]
IN A combination pocket hairbrush and comb, recently invented, the brush, no wider than a fountain pen, consists of a narrow sheath with a row of bristles on each side, while the comb slides in the groove between the two rows of bristles. When the comb is pushed in its groove, the combination tool takes up little room.
PopularScience_19221201_0101_006_0058.xml
article
36
36
[no value]
[no value]
Training Baby Athletes
[no value]
[no value]
[no value]
[no value]
DID you know that in the United States today there is a growing army of baby athletes, raised almost from the cradle to astonishing feats of strength? Read, in next month’s issue, the fascinating story of how these infant prodigies are trained.
PopularScience_19221201_0101_006_0059.xml
article
36
36
[no value]
[no value]
Ingenious Pipe Wrench Has only Three Parts
[no value]
[no value]
[no value]
[no value]
CONTAINING only three parts, a remarkably effective pipe wrench just invented is a distinct departure from other wrenches of the type in that the position of the jaws is parallel with the line of the handle. The parts include a movable jaw, a handle that carries a stationary jaw, and a knurled nut for setting the movable jaw.
PopularScience_19221201_0101_006_0060.xml
article
36
36
[no value]
[no value]
Inserted-Tooth Metal Saw Wins Medal
[no value]
[no value]
[no value]
[no value]
FOR his invention of a practical inserted-tooth saw for metal cutting, Samuel T. Freas, of Philadelphia, Pa., recently won the Longstreth Medal awarded by the Franklin Institute of that city for “a particularly meritorious development in machinery.”
PopularScience_19221201_0101_006_0061.xml
article
36
36
[no value]
[no value]
Memo Pad Concealed in Base of Desk Phone
[no value]
[no value]
[no value]
[no value]
A TELEPHONE memorandum pad that can’t be misplaced, recently invented by E. N. Boucher, of Chicago, is contained in a circular metal holder attached by spring clamps to the base of the telephone. When not in use, the pad is concealed in the holder, but when it is wanted, pressure on a button at the side of the phone releases a spring that shoots the pad out to position for use.
PopularScience_19221201_0101_006_0062.xml
article
37
37,38
[no value]
[no value]
Sailors’ Battle with Huge Octopus Revives Tales of Dread Sea Monsters
[no value]
[no value]
[no value]
Robert E. Martin
AN AMAZING parallel to one of the most thrilling combats described anywhere in literature—the famous fight between Victor Hugo’s hero, Gilliat, in “Toilers of the Sea,” and a huge octopus that attacked him as he explored, waist-deep in water, the black depths of a cave— is said to have taken place recently, almost on the very site of Hugo’s dramatic story.
PopularScience_19221201_0101_006_0063.xml
article
37
37
[no value]
[no value]
The Sea Monster Known to Science—An Actual Fight with an Octopus
[no value]
[no value]
[no value]
[no value]
HOW fishermen off the island of Jersey described recently their fight with a huge octopus, which seized the mast of the boat with one tentacle, nearly overturning the craft, while a second tentacle caught a fisherman and almost dragged him overboard. Jelly like and slimy as this creature seems to be, its tentacles are so tough as to resist slashing knives.
PopularScience_19221201_0101_006_0064.xml
article
38
38
[no value]
[no value]
Aluminum Film Prevents Movie Fires
[no value]
[no value]
[no value]
[no value]
ELIMINATING the danger of fire— always present in nitrocellulose film —motion pictures printed on bands of flexible aluminum by a process recently perfected by M. Werthen, of Berlin, Germany, are expected to increase the enjoyment of movies in the home.
PopularScience_19221201_0101_006_0065.xml
article
38
38
[no value]
[no value]
Automatic Gage and Tray Simplify Tool Sorting
[no value]
[no value]
[no value]
[no value]
SORTING and classifying large numbers of machine drills has been greatly simplified by the combination of an ingenious automatic drill and wire gage, with a special sorting tray, invented by Edmund Curran, of Boston, Mass. The drill gage consists of hardened steel jaws connected by levers with a sensitive gage that registers diameters in half thousandths of an inch.
PopularScience_19221201_0101_006_0066.xml
article
38
38
[no value]
[no value]
Two-Cycle Engine Has Double Pistons
[no value]
[no value]
[no value]
[no value]
TWO pistons, one working within the other in the same cylinder block, but at opposite ends of the stroke, promise to solve the problem of adapting the two-cycle engine for use in automobiles, in the opinion of the designers, Louis L. Luce and Le Roy Mattson, of Portland, Ore.
PopularScience_19221201_0101_006_0067.xml
article
39
39,40
[no value]
[no value]
Can Science Win Race against Forest Destruction by Discovering New Source of Newsprint Paper?
Mexican Hemp Now Seems Promising Substitute for Pulpwood
[no value]
[no value]
[no value]
ABATEMENT of the appalling destruc“tion of American forests that are now being shorn of pulpwood timber at the rate of 100 acres a day to supply the American public with news, may now be in sight. A quickly growing plant called “henequen,” a native of Mexico and the tropics, apparently possesses all the properties demanded of newsprint paper, for which only pulpwood has hither-to been employed.
PopularScience_19221201_0101_006_0068.xml
article
39
39
[no value]
[no value]
Turning Out Enough Henequen Twine Yearly to Girdle the Globe 800 Times
[no value]
[no value]
[no value]
[no value]
FROM the henequen crop of Yucatan to the cost of a loaf of bread on your table is a long leap, yet one has a direct bearing on the other; for the mammoth harvesters in the Western wheatfields depend largely on this Mexican product for their all-important supply of twine.
PopularScience_19221201_0101_006_0069.xml
article
40
40
[no value]
[no value]
How Printing Presses Eat Up Our Forests
[no value]
[no value]
[no value]
[no value]
TO SUPPLY newsprint paper for the newspapers in New York City alone, wood pulp timber covering 42,000 acres—an area equal in size to the District of Columbia—is cut each year.
PopularScience_19221201_0101_006_0070.xml
article
40
40
[no value]
[no value]
Four Staggered Wings Lift Giant Long Distance Hydroplane
[no value]
[no value]
[no value]
[no value]
THE largest hydro-airplane ever built, to fly between Marseilles, France, and Algiers, was recently tried out at Saint-Raphael, on the southeastern coast of France. The most striking feature of this gigantic machine is the staggered arrangement of its four pairs of wings which, in the opinion of aviation experts, will have a tendency greatly to increase the stability of the machine and to diminish danger in landing.
PopularScience_19221201_0101_006_0071.xml
article
41
41
[no value]
[no value]
Human Throat Is Model for Phonograph Sound Tube
[no value]
[no value]
[no value]
[no value]
WITH the sensitive human throat as his model, Burdette Stump, of Denver, Colo., has invented a phonograph sound tube that is said to reproduce all tones on the record with perfect fidelity, while excluding disagreeable side tones. The throat-shaped sound tube, inclosed in the apex of a heavy horn, is made of metal, slightly tapered and horizontally fluted, with vertical flutings at the inner bend.
PopularScience_19221201_0101_006_0072.xml
article
41
41
[no value]
[no value]
Shingle Roof Laid from Inside with Clips
[no value]
[no value]
[no value]
[no value]
BY MEANS of small metal roofing clips, attached under sections of composition shingles, roofing can now be laid from the inside of a building. In laying the first strip of shingles, the bottom edges of the clips slip under a baseboard fastened along the eaves.
PopularScience_19221201_0101_006_0073.xml
article
41
41
[no value]
[no value]
Machine Husks Corn and Shreds Husks
[no value]
[no value]
[no value]
[no value]
A REMARKABLE machine that husks corn and at the same time shreds the removed husks to fine fibers that, when dried, are an excellent material for upholstering and packing, has been invented by George A. Lowry, of Chicago, III. The machine has an endless chain armed with gripping jaws that are at an angle to each other while the chain passes around a pulley, but close up when the chain becomes straight.
PopularScience_19221201_0101_006_0074.xml
article
41
41
[no value]
[no value]
Rotating Celluloid Disk Aids in Lettering
[no value]
[no value]
[no value]
[no value]
A DRAFTSMAN’S small instrument designed to save time in lettering maps, drawings, and designs, consists of a nickel-plated steel frame, holding a celluloid disk so that it may be rotated in the plane of the frame. The transparent disk has three rows of perforations spaced in accordance with different lettering systems.
PopularScience_19221201_0101_006_0075.xml
article
42
42
[no value]
[no value]
Cycling to Radio—The World’s Biggest Shovel —and— Other Novel Photos of the Month
[no value]
[no value]
[no value]
[no value]
Cyclists to carry the antenna, and a third to listen in, comprised a “Radio Trio’’ in a recent Jersey City, N. J., parade Larger even than the shovels that dug the Panama Canal is the automatic digging machine below, built at the Krupp Works, Germany Like an oarsman, the driver of the novel four-wheeled vehicle shown below propels with his arms and guides with his feet as he sits on a sliding seat.
PopularScience_19221201_0101_006_0076.xml
article
43
43
[no value]
[no value]
Sitting Right in Chairs that Fit Keeps You Young
[no value]
[no value]
[no value]
[no value]
DO YOU sit right? Are you headed for a stoop-shouldered, shuffling old age; or will the advancing years find you maintaining erect, spirited carriage, with bodily and mental vigor unimpaired? Physicians who have made an exhaustive study of the subject now tell us that the effects on our health of unscientific seating are vastly more harmful than we have supposed.
PopularScience_19221201_0101_006_0077.xml
article
43
43
[no value]
[no value]
World’s Largest Lumber Raft Carries Cargo of Shingles
[no value]
[no value]
[no value]
[no value]
WHEN the world’s largest lumber raft reached San Diego, Calif., recently, after an ocean voyage of 1000 miles, it carried a cargo of shingles and laths. The lumbermen of Oregon had made themselves a ship, and set a precedent for other lumber men to follow in shipping logs, shingles and laths.
PopularScience_19221201_0101_006_0078.xml
article
44
44
[no value]
[no value]
Pacific Coast “Road Homes” to Welcome Tourists
[no value]
[no value]
[no value]
[no value]
IN THE world’s first large-scale attempt to provide systematized accommodations for the touring motorist at the end of each day’s trip, a chain of 20 modern hotels, in which every suite of rooms will have its own private garage and automobile experts in attendance, is now being established on the Pacific Coast.
PopularScience_19221201_0101_006_0079.xml
article
44
44
[no value]
[no value]
Small Tractor Helps Horses Deliver Coal
[no value]
[no value]
[no value]
[no value]
BY SUPPLEMENTING the pulling power of truck horses with that of small gasoline tractors, especially built for the purpose, a Cleveland, Ohio, firm claims to have solved a problem in economy in delivering annually about 500,000 tons of ice and coal in small quantities to its customers.
PopularScience_19221201_0101_006_0080.xml
article
44
44
[no value]
[no value]
Musician Really Plays This Novel Phonograph
[no value]
[no value]
[no value]
[no value]
IT TAKES a real musician to “play the phonograph” with a new device, invented by Paul F. Hoag, of Brooklyn, N. Y., in which the phonograph record consists of a number of series of circular grooves, each series reproducing one of the notes in the scale.
PopularScience_19221201_0101_006_0081.xml
article
45
45
[no value]
[no value]
Shall We Make Junk or the World’s Finest Plane Carriers out of Our Battle Cruisers?
Proposal to Convert Two Doomed Ships Urged in Washington
[no value]
[no value]
Graser Schornstheimer
UNCLE SAM'S is the only great navy in the world unequipped with modern aircraft carriers. The navy roster contains the names of the Wright and Langley as mother ships for navy planes, but the speed of these vessels is so inadequate when compared with the maneuvering speed of capital ships that the framers of the recent naval treaty did not consider them of sufficient importance to mention.
PopularScience_19221201_0101_006_0082.xml
article
45
45
[no value]
[no value]
An Unobstructed Flying Deck 900 Feet Long
[no value]
[no value]
[no value]
[no value]
If our unfinished battle cruisers, designed to appear as in the upper photograph, are converted into aircraft carriers, planes will have an unobstructed 900-foot deck for taking off and landing. In the illustration above, the telescoping masts are indicated by dotted lines.
PopularScience_19221201_0101_006_0083.xml
article
46
46
[no value]
[no value]
Hospital Uses Novel Mechanical Aids to Mend Injured Workmen
[no value]
[no value]
[no value]
[no value]
UNIQUE among hospitals, and equipped with the most advanced electrical and mechanical devices for therapeutic treatment, the new Reconstruction Hospital of New York City, has the novel policy of devoting itself exclusively to the rehabilitation of men and women injured in industrial occupations.
PopularScience_19221201_0101_006_0084.xml
article
46
46
[no value]
[no value]
Elephants Test Garage Floor’s Strength
[no value]
[no value]
[no value]
[no value]
ABSENCE of fear on the part of five circus elephants as they tramped together on the metal floor of a newly built garage at Canton, Ohio, was a conclusive demonstration of the strength and rigidity of the floor, their trainers declared, citing the fact that these animals, with their inherent fear of weak supports, would have bolted in a panic rather than remain on an insecure structure.
PopularScience_19221201_0101_006_0085.xml
article
46
46
[no value]
[no value]
Sales of Bread Depend on the Weather
[no value]
[no value]
[no value]
[no value]
IN THE salesmen’s room of a baking company in Jersey City, N. J., which bakes more than 80,000 loaves of bread daily, one of the most important sales guides is Uncle Sam’s daily weather report; for the company has discovered that consumption of bread depends largely on the condition of the weather.
PopularScience_19221201_0101_006_0086.xml
article
47
47
[no value]
[no value]
Whippet Racing—America’s Newest Speed Sport
[no value]
[no value]
[no value]
[no value]
A THRILLING 200-yard race held in England between a whippet— the fleetest dog known—and a pigeon that had been trained to fly straight over the course, is recorded as having been won by the pigeon with a lead of only two yards! This extraordinary record has been cited by Freeman Lloyd, British authority on whippet racing, as proving that the wiry little descendant of greyhound and terrier is one of the fleetest of all animals.
PopularScience_19221201_0101_006_0087.xml
article
47
47
[no value]
[no value]
Fingerboard Ridge Aids Violin Students
[no value]
[no value]
[no value]
[no value]
TO ASSIST beginners on the violin to find the right places on the fingerboard for depressing the strings, a Chicago music teacher has devised a removable plate with slight ridges marking the points for the notes of the chromatic scale. When this plate is clamped over the smooth' fingerboard of the violin, and after the instrument is correctly tuned, any desired note can be produced by pressing the respective string against the ridge of the plate that corresponds with this note.
PopularScience_19221201_0101_006_0088.xml
article
47
47
[no value]
[no value]
Digging Machine Cuts Ice from Car Rails
[no value]
[no value]
[no value]
[no value]
BLOCKADES by ice and snow no longer tie up surface car lines of the Eastern Massachusetts Street Railway Company since the company has added to its road equipment an electric ice digging machine that already has proved its merit by cutting through 12 inches of frozen snow and ice.
PopularScience_19221201_0101_006_0089.xml
article
48
48
[no value]
[no value]
Novelties Caught by the Camera
[no value]
[no value]
[no value]
[no value]
Wooden Steamer Now Clubhouse One of the fleet of unfinished wooden steamers built by Uncle Sam during the war is being transformed into a floating clubhouse by the American Legion Post at Kirkland, near Seattle, Wash. Who Can Play World’s Biggest Horns?
PopularScience_19221201_0101_006_0090.xml
article
49
49
[no value]
[no value]
How Steel I-Beams Are Bent to Form Truck Wheels
[no value]
[no value]
[no value]
[no value]
TRANSFORMING a wideflanged I-beam of rolled steel into truck wheels by a series of 10 machine operations is the technical achievement recently introduced by the Bethlehem Steel Company. The starting point in the evolution of the wheels is an I-beam with flanges and web of specified dimensions.
PopularScience_19221201_0101_006_0091.xml
article
49
49
[no value]
[no value]
Ingenious Test Tube Detects Poison Gas by Green Color
[no value]
[no value]
[no value]
[no value]
ONE of the greatest dangers to workers in coal mines is materially lessened by a simple apparatus of recent invention which, by means of color reaction, detects the presence in the air of five hundredths of one per cent of poisonous carbon monoxid gas and measures the relative percentage.
PopularScience_19221201_0101_006_0092.xml
article
50
50,51,52
[no value]
[no value]
What City Smoke Clouds Cost You in Dollars and Health
Salt Lake City Leads New Drive on Huge Coal Waste
[no value]
[no value]
Robert E. Martin
IF YOU were asked to name America's most dangerous peacetime enemy, there is little likelihood that you would name the arch villain, smoke. Nevertheless, Salt Lake City, in a recent remarkably successful campaign against an unusually black smoke cloud, supplied the indictment and trial of this enemy and his allies —soot, sulphuric acid, and fog—finding them guilty beyond any doubt.
PopularScience_19221201_0101_006_0093.xml
article
50
50
[no value]
[no value]
Chicago’s Smoke Detectives at Work
[no value]
[no value]
[no value]
[no value]
Progress in fighting the smoke nuisance of Chicago has been made, through the method illustrated in the above photo, showing the Health Commissioner’s staff, at the top of a downtown building, spotting offending chimneys through smoke detectors
PopularScience_19221201_0101_006_0094.xml
article
50
50
[no value]
[no value]
Salt Lake City’s Smoke Pall Explored by Airplanes
[no value]
[no value]
[no value]
[no value]
A popular belief that the heavy smoke pall regularly blanketing Salt Lake City, and shown in the upper inset photo, was caused by a blanket of gases accumulating in the upper air, from near-by smelters, caused scientists to test the air in an airplane laboratory.
PopularScience_19221201_0101_006_0095.xml
article
50
50
[no value]
[no value]
Build Your Fire Upside Down
[no value]
[no value]
[no value]
[no value]
IN THE recent investigation in Salt Lake City, furnaces and stoves in homes were found to contribute largely to the smoke nuisance. The investigators now recommend for both stoves and furnaces the novel method of firing and stoking shown below.
PopularScience_19221201_0101_006_0096.xml
article
52
52
[no value]
[no value]
Three Blades for One Skate
[no value]
[no value]
[no value]
[no value]
THROUGH the invention of a universal skate with three attachable blades for fancy skating, racing, or hockey playing, any skater may enjoy a wide variety in ice sport this winter without buying three pairs of skates or three pairs of shoes.
PopularScience_19221201_0101_006_0097.xml
article
52
52
[no value]
[no value]
Truck Rollers Unload Lumber Pile Bodily
[no value]
[no value]
[no value]
[no value]
THE remarkable feat of one man’s unloading lumber weighing five tons in from two to four minutes is possible with an ingenious new roller attachment for motor trucks. Furthermore, the same load, previously piled and chained, can be transferred from a loading platform to the truck in one minute.
PopularScience_19221201_0101_006_0098.xml
article
52
52
[no value]
[no value]
Clamp Chokes Fire Hose under Pressure
[no value]
[no value]
[no value]
[no value]
A HOSE clamp for shutting off a stream of water, in a fire hose under pressure has been invented by a fireman of 23 years’ experience. The device consists of a wrought iron rod bent in the form of a U and having at its closed end an extension of one of the arms of the U, bent at right angles so as to form a second U with the bottom part of the first.
PopularScience_19221201_0101_006_0099.xml
article
53
53
[no value]
[no value]
Marvelous “Water Staircase” Lifts Stream 20 Feet
[no value]
[no value]
[no value]
[no value]
SERIOUS problems of irrigation and rural water supply may shortly be solved by an extraordinary apparatus recently perfected in England, which automatically raises 14 gallons of water from a stream to a height of 20 feet in a little less than three minutes, without the use of pumps or any source of power other than what nature furnishes.
PopularScience_19221201_0101_006_0100.xml
article
53
53
[no value]
[no value]
Compressed Air Drives Hand Shovels into Hard Ground
[no value]
[no value]
[no value]
[no value]
HAND shovels driven by air are greatly facilitating the digging of tunnels and other types of excavations with less fatigue to the laborers. These shovels are particularly successful in cutting up hard and soft clays, or wherever the ground is not hard enough to warrant drilling and blasting.
PopularScience_19221201_0101_006_0101.xml
article
54
54
[no value]
[no value]
Dizzy Ski Jump from Grandstand Roof
[no value]
[no value]
[no value]
[no value]
THE world’s most breath-taking ski jump has been made in Calgary, Canada, where a take-off 150 feet from the ground has been erected upon the roof of a large concrete and steel grandstand. To allow the jumpers to attain speed, a 100-foot tower has been built on the roof, making the total distance through which the jumper must descend just 250 feet.
PopularScience_19221201_0101_006_0102.xml
article
54
54
[no value]
[no value]
Cap for Beverage Bottles Can Be Torn Off with Fingers
[no value]
[no value]
[no value]
[no value]
A METAL cap that will seal a beverage bottle so tightly that it will resist a gas pressure up to 100 pounds, yet is so easily removed that it can be torn off with the fingers, has recently been developed. Its use is made possible by a machine that automatically stamps the caps from a strip of aluminum, places a cork washer on each bottle and finally crimps the edge of the metal disk around the mouth of the bottle.
PopularScience_19221201_0101_006_0103.xml
article
54
54
[no value]
[no value]
Cutter Severs Wire Rope like Twine
[no value]
[no value]
[no value]
[no value]
WIRE rope up to one inch in diameter is cut with a single blow by a cutting block recently introduced by a manufacturer of St. Louis, Mo. The cutter can be inserted in the hardy hole of an anvil or used with its base plate. The cutter blade is driven down by a blow from the sledge, causing a lower cutting die to cut through the rope.
PopularScience_19221201_0101_006_0104.xml
article
54
54
[no value]
[no value]
Overloaded Chain Found Permanently Rigid
[no value]
[no value]
[no value]
[no value]
A CHAIN made of seven-eighth-inch steel links, and 25 feet long, was found to be perfectly rigid after it had been used to pull several heavily loaded freight cars in the yards of a small Ohio railroad station. It could be handled like a solid rod of steel, and even when dropped violently on the ground after the accompanying photograph had been taken, it retained its rigidity.
PopularScience_19221201_0101_006_0105.xml
article
54
54
[no value]
[no value]
Why Phone Wires Sing
[no value]
[no value]
[no value]
[no value]
THE mystery of the singing noise in telegraph or telephone wires has been solved by L. Respighi, technical chief of the Italian telephone service, who finds that the sounds are due to vibrations of the wires caused by the transversal passing of air currents, which act as a bow drawn over the strings of a violin.
PopularScience_19221201_0101_006_0106.xml
article
54
54
[no value]
[no value]
Monster Bus Hauled Truck Trailer
[no value]
[no value]
[no value]
[no value]
FOR quickly and inexpensively handling the heavy traffic between the city and a near-by pleasure resort, experiments are being conducted in Detroit, Mich., with a monster motor bus seating 135 passengers. Motive power is supplied by a foreshortened gasoline motor truck on the rear of which the bus is attached as a trailer.
PopularScience_19221201_0101_006_0107.xml
article
55
55
[no value]
[no value]
"Talking Thread" Reproduces Human Voice
Space-Saving Records, Wound on Spools, May Revolutionize Methods of Correspondence
[no value]
[no value]
[no value]
WILL the “talking thread” soon revolutionize our present methods of letter correspondence? When “writing” to distant friends, shall we merely send them spools of cellulose string which, when placed on a reproducing mechanism, will speak our words just as we said them?
PopularScience_19221201_0101_006_0108.xml
article
55
55
[no value]
[no value]
A “Talking Thread” under the Photomicroscope
[no value]
[no value]
[no value]
[no value]
Sound wave impressions made by sapphire stylus may be seen in this photomicrograph of an actual thread record
PopularScience_19221201_0101_006_0109.xml
article
55
55
[no value]
[no value]
Ingenious Book Bank Helps Kiddies to Save Dimes
[no value]
[no value]
[no value]
[no value]
BY THE invention of a combined bank book and savings bank, Edward D. Smith, of Erie, Pa., has made it easier for children to save dimes. The device is made of cardboard in the form of a book, on the front cover of which are records of amounts deposited.
PopularScience_19221201_0101_006_0110.xml
article
56
56
[no value]
[no value]
Dumbwaiter from Cellar Feeds the Fireplace
[no value]
[no value]
[no value]
[no value]
DOUBLING the comfort of a home fire-place, the invention of an ingenious system of hauling wood and dumping ashes not only eliminates the drudgery of trundling wood from the cellar, but does away with wood boxes and coal scuttles. A dumbwaiter operated by a winch in the cellar, hoists a box loaded with fuel to an upholstered receptacle masquerading as a window seat.
PopularScience_19221201_0101_006_0111.xml
article
56
56
[no value]
[no value]
High-School Boys Build Miniature Automobile
[no value]
[no value]
[no value]
[no value]
BOYS of the Lane Technical School in Chicago are proud of a one-seater automobile that was designed and built by themselves. Working drawings were the work of the mechanical drawing classes. Boys in the pattern shop made patterns for castings, while others forged axles and steering column.
PopularScience_19221201_0101_006_0112.xml
article
56
56
[no value]
[no value]
Novel Wingless Plane Speeds over Ice
[no value]
[no value]
[no value]
[no value]
NINETY miles an hour is the speed of a remarkable wingless airplane carry-all built from scrapped airplane equipment by three former army aviators of Sioux City, la. The strange vehicle is 30 feet long and seven feet high, driven by a 90horsepower airplane engine, and is provided with both runners and wheels.
PopularScience_19221201_0101_006_0113.xml
article
56
56
[no value]
[no value]
How to Make Hay without Sunshine
[no value]
[no value]
[no value]
[no value]
THE owner of a large farm in England, where rains often last a week or longer during the haymaking season, has solved the problem of making hay when the sun doesn’t shine. After the grass has been mowed, and while it is still green, this farm owner stacks it like hay, but leaves a hollow space in the center of every stack.
PopularScience_19221201_0101_006_0114.xml
article
57
57
[no value]
[no value]
Farmers Store Springtime Floods for Summer Use
[no value]
[no value]
[no value]
[no value]
CONFRONTED by a dwindling supply of under-ground water for irrigation and the consequent danger of soil failure, farmers in some of the valleys of southern California have discovered that nature has provided extensive under ground reservoirs just where mountain streams enter the valleys.
PopularScience_19221201_0101_006_0115.xml
article
57
57
[no value]
[no value]
Traveling “Floatbridge” Smooths Concrete Pavement
[no value]
[no value]
[no value]
[no value]
TO PREVENT newly made concrete roads from developing waves and uneven spots, Edward G. Carr, of Chicago, has perfected a low rectangular floatbridge on which workmen stand while sliding the longitudinal float back and forth. The floatbridge also carries a sliding belt that smooths out any marks that might be left by the float.
PopularScience_19221201_0101_006_0116.xml
article
58
58
[no value]
[no value]
Can You Climb a 70-Degree Slope?
[no value]
[no value]
[no value]
[no value]
WHAT is the steepest ascent possible for human mountain climbers? The Matterhorn, one of the most difficult climbs in the world, has an average incline of only 30 degrees, but expert mountaineers declare that a mountainside rising at 70 degrees from the horizontal can be scaled by fearless and experienced climbers.
PopularScience_19221201_0101_006_0117.xml
article
58
58
[no value]
[no value]
New Rest Supports Violin along Entire Shoulder
[no value]
[no value]
[no value]
[no value]
THE supporting device recently invented by George W. Jordan, of Clemenceau, Ariz., enables violinists to hold their instruments comfortably and without having to depend on the support of the left hand. It consists of two parts permanently connected by a setscrew.
PopularScience_19221201_0101_006_0118.xml
article
58
58
[no value]
[no value]
Pocket Searchlight Has a Focusing Attachment
[no value]
[no value]
[no value]
[no value]
BY A slight turn of a button in the back of a new pocket flash light the angle of the light cone can be changed at will. The light can be scattered over a wide field or concentrated into a slender beam, giving brilliant illumination at 100 yards. The lamp is contained in a neat case, carrying three cells in series and a bulb in an adjustable socket.
PopularScience_19221201_0101_006_0119.xml
article
58
58
[no value]
[no value]
Spiral Chute Separates Coal and Shale
[no value]
[no value]
[no value]
[no value]
INGENIOUS separators that are motionless and require no propelling machinery, are now used in many coal mines for the cheap and effective removal of shale, slate, and other clayey admixtures, from coal. The mechanism consists of a central, vertical post around which are placed spiral steel troughs.
PopularScience_19221201_0101_006_0120.xml
article
59
59
[no value]
[no value]
Hetch Hetchy Dam Built under Night Flood Lights
[no value]
[no value]
[no value]
[no value]
UNDER brilliant midnight lighting, the magnificent Hetch Hetchy dam, in California, which engineers are rushing toward completion in order to supply San Francisco, Oakland, and small neighboring communities with 500,000,000 gallons of water daily, furnishes one of the most spectacular scenes ever produced by any great engineering project.
PopularScience_19221201_0101_006_0121.xml
article
59
59
[no value]
[no value]
Another Unusual Dam
[no value]
[no value]
[no value]
[no value]
THE level of the flood waters rose 10 feet higher than the unfinished dam designed to hold the water back; yet California engineers not only completed the dam, but saved the water, worth more than the cost of the dam. How did they do it? Read, in next month’s issue, how this amazing engineering feat was accomplished in building the Barrett dam near San Diego, Calif.
PopularScience_19221201_0101_006_0122.xml
article
59
59
[no value]
[no value]
How Trailer Trucks Moved Michigan Village Twelve Miles
[no value]
[no value]
[no value]
[no value]
MOVING a village—houses and all—by motor truck was recently accomplished when one hundred homes, comprising the community of Jennings, Mich., were picked up bodily and carried on trailers to Cadillac, Mich., 12 miles away. This extraordinary transfer, which indicates the motor truck trailer’s wide utility, was necessitated by the removal of a large manufacturing plant from one town to the other.
PopularScience_19221201_0101_006_0123.xml
article
60
60
[no value]
[no value]
How Screws Are Tested by Their Own Shadows
[no value]
[no value]
[no value]
[no value]
BY MEANS of shadows thrown on the screen by ingenious new reflecting apparatus, several types of which have been developed, inspection of screw threads and gears to determine accuracy of workmanship is now accomplished with far greater speed than has been possible with the use of testing gages.
PopularScience_19221201_0101_006_0124.xml
article
60
60
[no value]
[no value]
Distant Typewriter Operates Monster Outdoor Bulletin Board
[no value]
[no value]
[no value]
[no value]
USING an ordinary typewriter, the keys of which actuate magnets controlling a distant printing mechanism, a firm in New Jersey has developed a mechanism for quickly printing newspaper display bulletins in type large enough to be read 20 or 25 feet away.
PopularScience_19221201_0101_006_0125.xml
article
61
61,62
[no value]
[no value]
Uncle Sam Discovers Magic Farming Methods that May Give Us Fresh Vegetables at Any Season
Recent Experiments Promise Creation of Marvelous New Plants
[no value]
[no value]
Lewis E. Theiss
A BRAND-NEW agriculture, based on heretofore undreamed-of methods of farming, and likely to produce new vegetable wonders for our dinner tables at all seasons may result from startling discoveries recently made by the United States Department of Agriculture.
PopularScience_19221201_0101_006_0126.xml
article
62
62
[no value]
[no value]
Willow Dams Built through Ice on the Mississippi
[no value]
[no value]
[no value]
[no value]
DAMS of willow twigs that keep the channels of the Mississippi at a navigable depth, protecting valuable farming land along the banks against erosion, are easier to build in winter than in summer, engineers have found, since ice on the river simplifies construction.
PopularScience_19221201_0101_006_0127.xml
article
63
63
[no value]
[no value]
Road Building Derrick Lays Pre-Cast Concrete Slabs
[no value]
[no value]
[no value]
[no value]
TWO-TON slabs of concrete, reinforced by corrugated steel plates, are the units in a novel form of road pavement now being tested on the Bank-head highway leading into Birmingham, Ala. The slabs, cast in forms near the place where they are to be used, are placed in position by a crane.
PopularScience_19221201_0101_006_0128.xml
article
63
63
[no value]
[no value]
Light Auto Top of Metal
[no value]
[no value]
[no value]
[no value]
AN ALL-ALUMINUM automobile top, recently designed, is so light that a driver can raise or lower it with one hand. When lowered, the top swings into a recess at the rear of the car.
PopularScience_19221201_0101_006_0129.xml
article
63
63
[no value]
[no value]
One Man Runs Concrete Mixer
[no value]
[no value]
[no value]
[no value]
CAREFULLY balanced on wheels, a new portable concrete mixer is so compact that one man can trundle it from place to place as easily as if it were a wheel-barrow. To operate the mixer the platform approach corresponding to the handles of a barrow is let down on its support and the gravel and cement are carried up a skidway and dumped directly into the mixer.
PopularScience_19221201_0101_006_0130.xml
article
63
63
[no value]
[no value]
Trucks Deliver Loaded Garbage Carts
[no value]
[no value]
[no value]
[no value]
GARBAGE carts that can be lifted to motor trucks and whisked away to garbage dumps, have recently been devised. For short haul collections the cart is drawn by horses. When the cart body is loaded, the horses are unhitched and a truck with adjustable platform backs up to the cart.
PopularScience_19221201_0101_006_0131.xml
article
63
63
[no value]
[no value]
Levered Arch Lifts Tight Milkcan Lids
[no value]
[no value]
[no value]
[no value]
TIGHT fitting milkcan covers, which are often the indirect cause of damage to cans by hammering, can now be removed easily by means of a simple cover remover, consisting of a U-shaped arch that rests on the shoulders of the can, and two levers pivoted in the arch in such a manner that their ends act on the under side of the cover.
PopularScience_19221201_0101_006_0132.xml
article
64
64
[no value]
[no value]
Cane Harvester Strips and Sorts Stalks
[no value]
[no value]
[no value]
[no value]
ALTHOUGH the first sugar-cane harvesting machine was described in a patent issued in 1859, followed by scores of others, what is said to be the first commercially successful cane harvester was invented by George D. Luce, of New Orleans, only a few years ago, and is now operating in Cuba and Florida.
PopularScience_19221201_0101_006_0133.xml
article
64
64
[no value]
[no value]
Hot Air Register Concealed by Mock Fireplace
[no value]
[no value]
[no value]
[no value]
THE cheery light and comfort of an open grate fire, minus the nuisance of handling coal and ashes, is possible in the sitting room by a new method of camouflaging a hot air register. The grate is filled with a pile of irregularly shaped pieces of colored glass, which are as large as grate-size coal and ranging in tint from light pink to deep maroon.
PopularScience_19221201_0101_006_0134.xml
article
64
64
[no value]
[no value]
Novel Cupboard Preserves Drawing Paper
[no value]
[no value]
[no value]
[no value]
A CUPBOARD that keeps drawing paper clean and facilitates its handling has recently been designed in Germany. In the cupboard is a s'pace inclosed on all It takes up a floor space of only two feet square. The cupboard contains four rolls of drawing and two rolls of tracing paper.
PopularScience_19221201_0101_006_0135.xml
article
64
64
[no value]
[no value]
What Do You Want to Know?
[no value]
[no value]
[no value]
[no value]
ADDRESS your questions on subjects of general or applied science to the Information Department, POPULAR SCIENCE MONTHLY, 225 W. 39th St., New York City, inclosing' self-addressed, stamped envelope. Can you estimate the amount of coal still left to be mined?
PopularScience_19221201_0101_006_0136.xml
article
64
64
[no value]
[no value]
Rotary Toothbrush Cleans Backs of Teeth
[no value]
[no value]
[no value]
[no value]
A NEW brush that makes it possible to brush the fronts as well as the backs of our front teeth in one operation consists of two round disks studded with bristles and fastened at the end of a long handle. The handle is given an oscillating rotary motion by rolling between the palms of the hands.
PopularScience_19221201_0101_006_0137.xml
article
65
65
[no value]
[no value]
Railroad Car Springs of Automobile Type
[no value]
[no value]
[no value]
[no value]
AN INTERESTING modification for railway use of a familiar type of auto-mobile spring suspension is seen in a new type of bogie, or truck for passenger and freight cars. In the ordinary type, the weight of the vehicle, carried on the center of the transverse bolster, or beam, is transferred by it to a pair of side frames supported on nests of helical springs or on the ends of laminated bearing springs, or both, which in turn rest upon the axle boxes.
PopularScience_19221201_0101_006_0138.xml
article
65
65
[no value]
[no value]
Test Barn Air to Increase Milk Yield
[no value]
[no value]
[no value]
[no value]
VENTILATION in many modern cow barns is planned as carefully and tested with as much scientific accuracy as that in any hospital. When cows have enough fresh air, without strong drafts, their milk is greater in quantity and richer in butter fat.
PopularScience_19221201_0101_006_0139.xml
article
65
65
[no value]
[no value]
Motor Truck Has Tilting Cab Roof
[no value]
[no value]
[no value]
[no value]
LOW doors, or low loading bins are no obstacle to motor trucks equipped with a tilting cab roof of recent invention. During travel it protects the driver, but when pushed forward and down, does not add to the headroom. The invention comes from a small town in Wales, where sudden storms that sweep down from the mountains make it necessary to give the driver protection at all times.
PopularScience_19221201_0101_006_0140.xml
article
65
65
[no value]
[no value]
New Instrument Combines T-Square and Protractor
[no value]
[no value]
[no value]
[no value]
A NEW drafting instrument that is said to represent an improvement over the movable-head T-square consists of three principal parts—a rod on which a rule is mounted, a metal protractor plate with lugs, and a guide rod along which the protractor plate can slide by means of the lugs.
PopularScience_19221201_0101_006_0141.xml
article
66
66
[no value]
[no value]
A Page of Useful New Inventions for the Home
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0142.xml
article
67
67
[no value]
[no value]
Combination Boiler-Grate Is Coal Saver
[no value]
[no value]
[no value]
[no value]
MAKING one ton of coal do the work of two is said to be a possibility with an ingenious new combination boiler and furnace or fireplace grate invented by a French engineer for use in hot-water heating systems. The “boiler” consists of a series of curved pipes that may be fitted into the furnace fire-box or into a fireplace.
PopularScience_19221201_0101_006_0143.xml
article
67
67
[no value]
[no value]
Battered Bullets No Alibi for Hunters
[no value]
[no value]
[no value]
[no value]
BATTERED bullets are no excuse for missing a shot. Recent tests demonstrate that this favorite alibi of the hunter who, having missed his game, notes that the points of some of his bullets are flattened or bent, simply will not hold water. If the base of the bullet is flat, at right angles to the axis, the bullet will fly true, regardless of any ordinary damage done to the point, the tests revealed.
PopularScience_19221201_0101_006_0144.xml
article
67
67
[no value]
[no value]
Auto Chassis Converted into Ice Cutter
[no value]
[no value]
[no value]
[no value]
WITH ice-saws mounted on the rear wheel axles, the frame-work and engine of a light car were converted this winter into an efficient ice harvester. A plow handle was bolted to the chassis just in front of the radiator, and the chassis was mounted on a strong sled, with a round iron bar at the balancing point, so that one man could easily raise the saws from the ice at the end of the cut.
PopularScience_19221201_0101_006_0145.xml
article
67
67
[no value]
[no value]
Paper Cabinet for Typists
[no value]
[no value]
[no value]
[no value]
PAPER and carbons are assembled automatically for the typist in a cabinet of pressed steel with three compartments containing letterheads, carbon paper, and second sheets. By depressing a lever, the paper and carbons are fed out and arranged in the proper order ready for insertion in the typewriter.
PopularScience_19221201_0101_006_0146.xml
article
67
67
[no value]
[no value]
Rotary Power Razor Shaves in Sixty Seconds
[no value]
[no value]
[no value]
[no value]
A SHAVE in 60 seconds—without the possibility of a cut face—is the claim advanced for a new rotary razor invented by S. P. Jones, of Waco, Texas. The instrument operates by electricity, and fits any of the standard shafts used for power driven clippers in barber shops.
PopularScience_19221201_0101_006_0147.xml
article
68
68
[no value]
[no value]
Jack Binns’ Ten Commandments for the Radio Fan
Second Series: Getting the Best Results with a Vacuum Tube Set
[no value]
[no value]
Jack Binns
IF YOU own a standard vacuum tube receiving outfit, you have in your possession a delicate bit of apparatus, the efficiency of which depends as much upon you who operate it as upon the set itself. The purpose of my present series of “Ten Commandments for Radio Fans” is to enable any possessor of an ordinary receiving set to achieve higher efficiency in using it and to get the maximum enjoyment out of it by learning a few fundamentals of operation.
PopularScience_19221201_0101_006_0148.xml
article
68
68
[no value]
[no value]
Charging Batteries at Home
[no value]
[no value]
[no value]
[no value]
TO AVOID the annoyance of having a battery run down just when it is needed, many radio fans find it worth while giving their batteries a short charge every day or two, using a home battery recharger on alternating current. The essential part of the recharger shown above is a tube containing filament and plate, similar to the vacuum tube in your receiving set, but differing in that it is filled with argon, an inert gas.
PopularScience_19221201_0101_006_0149.xml
article
68
68
[no value]
[no value]
Radio Questions Answered—What’s Yours?
[no value]
[no value]
[no value]
[no value]
Q.—Will you please explain the meaning of terms that are prefixed by such words as "micro,” “mill,” etc. A.—Following is a list of prefixes usually used in connection with electrical units and which determine the value of the fraction used:
PopularScience_19221201_0101_006_0150.xml
article
69
69,70
[no value]
[no value]
How to Make Your Simple Tube Set Regenerative
[no value]
[no value]
[no value]
[no value]
WHEN inserting second coil to obtain feed-back effect, tune in, and then adjust new coil until maximum signals are heard. Only experiment can tell which end of new coil should be nearest old coil, and whether coils should be in exact alinement or not.
PopularScience_19221201_0101_006_0151.xml
article
70
70
[no value]
[no value]
This Two-Stage Set Built from Our Blueprint
[no value]
[no value]
[no value]
[no value]
MORRIS MEISEL, of New York City, has achieved remarkable results with his two-stage radio receiving set, shown above, which he built from Popular Science Monthly’s blueprint. Mr. Meisel has been especially successful in the clear quality of signals received.
PopularScience_19221201_0101_006_0152.xml
article
70
70
[no value]
[no value]
Track-Laying Tractor Bucks Snowdrifts for Fifty Miles
[no value]
[no value]
[no value]
[no value]
BY SUCCESSFULLY bucking deep snowdrifts over a hidden trail for fifty miles in the foot-hills of the high Sierras, the track-laying tractor has qualified as a possible means of locomotion for polar expeditions. When a few sections of the penstock of a hydroelectric pipe line burst at a point 50 miles away from the railroads in eastern California, a continuous tread tractor was called into service as the only possible means of transporting supplies, equipment, and workmen to the scene of the break.
PopularScience_19221201_0101_006_0153.xml
article
71
71
[no value]
[no value]
Machine Speeds Winding of Tape on Motor Wheels
[no value]
[no value]
[no value]
[no value]
BY MEANS of a cone clutch, a machine invented by P. E. Chapman, of St. Louis, Mo., for applying tape to the field and armature coils of electric motors and generators, responds instantaneously to the finest adjustment of speed as controlled by a foot treadle.
PopularScience_19221201_0101_006_0154.xml
article
71
71
[no value]
[no value]
Novel Keyboard Transposes Piano Music
[no value]
[no value]
[no value]
[no value]
A TRANSPOSING keyboard for piano, and a contrivance for the mechanical notation of music have recently been invented by Dr. Moritz Stoehr, of Mount St. Vincent College, New York. The transposing device consists of a slidable keyboard that is placed over the regular keyboard of the piano.
PopularScience_19221201_0101_006_0155.xml
article
71
71
[no value]
[no value]
Novel Tips for the Motorist Told in Photographs
[no value]
[no value]
[no value]
Harold F. Blanchard
[no value]
PopularScience_19221201_0101_006_0156.xml
article
72
72,73,74
[no value]
[no value]
How You May Save 30 per Cent of the Gasoline Now Wasted through the Exhaust of Your Car
Ingenious Testing Apparatus Reveals New Facts about Combustion
[no value]
[no value]
H. F. Blanchard
HOW much good fuel is wasted in the exhaust gases from your car? You don’t know? Well, recent practical tests by Uncle Sam’s scientists prove that if you are an average motorist, from 20 to 30 per cent of the gas that goes into your carburetor goes out unconsumed through your exhaust—wasted.
PopularScience_19221201_0101_006_0157.xml
article
72
72
[no value]
[no value]
Carbon Dioxid Test Will Help You Increase Your Mileage
[no value]
[no value]
[no value]
[no value]
THIS simple apparatus, perfected by Uncle Sam’s engineers, enables the motor user or repairman to test the amount of carbon dioxid in the exhaust gas from a car and in this way to increase the mileage results to be obtained from each gallon of gasoline.
PopularScience_19221201_0101_006_0158.xml
article
73
73
[no value]
[no value]
Remarkable Test Apparatus Records Performance of Car on the Road
[no value]
[no value]
[no value]
[no value]
REMARKABLE experimental apparatus perfected by the United States Bureau of Standards and adapted for use in any make or model of car that will carry four or more passengers, promises to produce valuable records of every phase of the car’s activities during actual road tests.
PopularScience_19221201_0101_006_0159.xml
article
74
74
[no value]
[no value]
Know Your Car
[no value]
[no value]
[no value]
[no value]
THIS chart, if saved for reference, will help you to locate various engine troubles:
PopularScience_19221201_0101_006_0160.xml
article
74
74
[no value]
[no value]
Garage Doors Open Automatically
[no value]
[no value]
[no value]
[no value]
WHEN the front wheel of a car rolls over a contact plate embedded in the driveway, the remarkably simple electrical control shown here opens the garage doors automatically. This new apparatus differs from other electrical door controls in the fact that reciprocating motion of the doors is produced by positive lever action.
PopularScience_19221201_0101_006_0161.xml
article
75
75
[no value]
[no value]
Touring Car Transformed into Truck in Three Minutes
Other Useful New Inventions for Automobile Owners
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0162.xml
article
76
76
[no value]
[no value]
Built-In Gas Tank Improves Garage
[no value]
[no value]
[no value]
G. A. Luers
NEARLY every owner of a car has looked with envious eyes at various kinds of gasoline storage tanks and wished he had the advantages they provide in the way of lessening fire risk, making possible the purchase of gasoline in quantity at lower cost, and furnishing a convenient method of filling the car while in the garage.
PopularScience_19221201_0101_006_0163.xml
article
76
76
[no value]
[no value]
Homemade Radiator Curtain Helps Winter Motorist
[no value]
[no value]
[no value]
[no value]
TO OVERCOME some of the difficulties of winter driving, especially on trucks, it is well to protect the radiator with a curtain that can be raised or lowered at will from the dashboard. A homemade but thoroughly practical method of doing this is illustrated.
PopularScience_19221201_0101_006_0164.xml
article
76
76
[no value]
[no value]
Removing Round-Head Bolts
[no value]
[no value]
[no value]
H. B.
IT IS a problem to hold round-head spring bolts stationary while the nuts are being removed. This difficulty may be easily solved, however, by wedging a file between the boltheads. It is then a simple matter to remove the nuts.
PopularScience_19221201_0101_006_0165.xml
article
76
76
[no value]
[no value]
Pin for Fan Pulley on Ford Car Is Self-Locking
[no value]
[no value]
[no value]
S. E. G.
THE fan pulley pin has a habit of coming out occasionally on Ford cars. Usually the driver hears a peculiar noise and when he stops to locate the cause finds the pin bent beyond repair so that he cannot crank his engine, as there is nothing for the crank to catch upon.
PopularScience_19221201_0101_006_0166.xml
article
76
76
[no value]
[no value]
How to Supply Moist Air for Auto
[no value]
[no value]
[no value]
G. W. Greene
THE fact that motor cars run better on damp nights has led to the invention of a number of attachments for supplying damp air or steam to the motor at all times. Any one who wishes to try out the idea, can easily make a device that will do the work satisfactorily.
PopularScience_19221201_0101_006_0167.xml
article
77
77,103,104,105
The Home Workshop
New and Useful Things to Make with Tools
Novel Toys to Make for the Kiddies’ Christmas
How You Can Build Electric Train, “Broncho,” or Doll’s House
[no value]
[no value]
[no value]
FEW toys make a greater hit with the children at Christmas time than the three illustrated on this page—the electric train, with tracks; the “kiddie broncho,” and the doll’s house. Yet, much as children long for them, really satisfactory toys of this kind are often rather expensive in the toyshops.
PopularScience_19221201_0101_006_0168.xml
article
78
78
[no value]
[no value]
Radio Storage Battery Recharger Is Easily Built
[no value]
[no value]
[no value]
Valentine G. Lehmann
THIS recharging panel is efficient and not difficult to build. It will charge a 6-volt battery at an 8-ampere rate for about five cents—a charging capacity even greater than that of the “six-sixty” size commonly used in radio work and in experiments.
PopularScience_19221201_0101_006_0169.xml
article
78
78,129,130
[no value]
[no value]
Electric Scrubber Saves Labor in Cleaning
[no value]
[no value]
[no value]
Edwin G. Gettins
WITHOUT doubt, scrubbing floors is one of the hardest and most distasteful of the housewife’s duties. To scrub a floor clean means back-breaking labor. It can be avoided by using this electric floor scrubber, which, with the exception of the motor, can be made almost entirely of inexpensive odds and ends.
PopularScience_19221201_0101_006_0170.xml
advertisement
79
79
[no value]
[no value]
Philadelphia Storage Battery Company: PHILCO DRYNAMIC RADIO BATTERIES
[no value]
Philadelphia Storage Battery Company
PHILCO DRYNAMIC RADIO BATTERIES
[no value]
[no value]
PopularScience_19221201_0101_006_0171.xml
advertisement
80
80,81
[no value]
[no value]
Multiple Storage Battery Corporation
[no value]
Multiple Storage Battery Corporation
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0172.xml
article
82
82,123
[no value]
[no value]
How to Build a Portable Stage
Frame Folds Compactly, and Wallboard Wings, Back Drop, and Front Panels Are Light and Easy to Handle
[no value]
[no value]
Lawrence B. Robbins
CHURCHES, lodges, small town societies, and similar organizations are often sadly unprepared when it comes to staging a Christmas entertainment or an amateur play. This lack can be over-come by building a small portable stage for erection on the floor or a platform.
PopularScience_19221201_0101_006_0173.xml
article
82
82,117
[no value]
[no value]
Doll Receiving Set Is Christmas Radio Novelty
[no value]
[no value]
[no value]
John A. Mahon
HERE is a small radio receiving set that has alike the novelty, utility and holiday appeal to make it an ideal Christmas gift. It can be constructed at a cost of 75 cents for materials, exclusive of telephone and aerial, and is not at all difficult to make.
PopularScience_19221201_0101_006_0174.xml
advertisement
83
83
[no value]
[no value]
Straus & Schram
[no value]
Straus & Schram
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0175.xml
article
84
84,86,88,90
Better Shop Methods
How Expert Mechanics Save Time and Labor
Bench Surface Grinders Soon Pay for Themselves
New Designs for Simple, Sturdy Construction
[no value]
[no value]
[no value]
BENCH machines are valuable alike in the large and the small shop. With a bench grinder at hand, for instance, a workman is not likely to waste any time in filing and scraping when the same result can be obtained more quickly and usually better by grinding.
PopularScience_19221201_0101_006_0176.xml
advertisement
85
85
[no value]
[no value]
Du Pont: SHOOT DUPONT POWDERS
[no value]
Du Pont
SHOOT DUPONT POWDERS
[no value]
[no value]
PopularScience_19221201_0101_006_0177.xml
advertisement
86
86
[no value]
[no value]
E. C. Atkins & Co., Inc.: ATKINS SILVER STEEL SAWS
[no value]
E. C. Atkins & Co., Inc.
ATKINS SILVER STEEL SAWS
[no value]
[no value]
PopularScience_19221201_0101_006_0178.xml
advertisement
87
87
[no value]
[no value]
AutoStrop Safety Razor Co.
[no value]
AutoStrop Safety Razor Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0179.xml
advertisement
88
88
[no value]
[no value]
RADIO CORPORATION OF AMERICA
[no value]
RADIO CORPORATION OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0180.xml
advertisement
88
88
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19221201_0101_006_0181.xml
advertisement
89
89
[no value]
[no value]
The A. C. Gilbert Company: GILBERT TOYS
[no value]
The A. C. Gilbert Company
GILBERT TOYS
[no value]
[no value]
PopularScience_19221201_0101_006_0182.xml
advertisement
90
90
[no value]
[no value]
THE L. S. STARRETT CO.
[no value]
THE L. S. STARRETT CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0183.xml
advertisement
90
90
[no value]
[no value]
NORTHWESTERN ELECTRIC CO.
[no value]
NORTHWESTERN ELECTRIC CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0184.xml
advertisement
91
91
[no value]
[no value]
Advertisement: CUNNINGHAM VACUUM TUBES
[no value]
[no value]
CUNNINGHAM VACUUM TUBES
[no value]
[no value]
PopularScience_19221201_0101_006_0185.xml
advertisement
92
92
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0186.xml
article
92
92,94
BETTER SHOP METHODS
[no value]
Planer Gage Has End Slide and Height Blocks
[no value]
[no value]
[no value]
[no value]
THE addition of an end slide and height blocks give this improved planer and shaper gage a wide range of utility. It was designed by Henry S. Laraby, of New Haven, Conn., for the Better Shop Methods Department and his working details have been incorporated in a blueprint which can be obtained for 25 cents by filling out the coupon below.
PopularScience_19221201_0101_006_0187.xml
advertisement
93
93
[no value]
[no value]
THE IVES MANUFACTURING CORPORATION: Ives Trains
[no value]
THE IVES MANUFACTURING CORPORATION
Ives Trains
[no value]
[no value]
PopularScience_19221201_0101_006_0188.xml
advertisement
94
94
[no value]
[no value]
BROWN & SHARPE MFG. CO.
[no value]
BROWN & SHARPE MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0189.xml
advertisement
94
94
[no value]
[no value]
Reversible Collar Co.
[no value]
Reversible Collar Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0190.xml
advertisement
94
94
[no value]
[no value]
BAUSCH & LOMB OPTICAL COMPANY
[no value]
BAUSCH & LOMB OPTICAL COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0191.xml
advertisement
94
94
[no value]
[no value]
PERFECT SALES CO.
[no value]
PERFECT SALES CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0192.xml
article
94
94
[no value]
[no value]
Set of Props Saves Time in Grinding Valves
[no value]
[no value]
[no value]
G. A. L.
A SET of props for holding the valve springs of an engine compressed while the valves are removed for cleaning and grinding can quickly be made as illustrated. It saves time in repair work, inasmuch as the removal of the springs is avoided.
PopularScience_19221201_0101_006_0193.xml
article
95
95
BETTER SHOP METHODS
[no value]
How to Make a Cheap Multiple Jet Drinking Fountain
[no value]
[no value]
[no value]
A. K.
A MULTIPLE jet sanitary drinking fountain can be installed inexpensively in any shop. The fountain is simply a piece of pipe bent to a circle of convenient diameter and mounted above a galvanized iron drain. Holes about 3/16 in. in diameter are drilled vertically at equal distances apart along the pipe.
PopularScience_19221201_0101_006_0194.xml
article
95
95
BETTER SHOP METHODS
[no value]
Eccentric Clamp Holds Bearing Shims or Washers
[no value]
[no value]
[no value]
M. J. V.
FOR filing down solid shim blocks such as are used in connecting rod bearings or for facing off circular washers or other parts not easily held in the jaws of a vise because of their thinness and shape, a clamping fixture may quickly be made like the one illustrated.
PopularScience_19221201_0101_006_0195.xml
advertisement
95
95
[no value]
[no value]
REMINGTON TYPEWRITER CO.: Remington Portable
[no value]
REMINGTON TYPEWRITER CO.
Remington Portable
[no value]
[no value]
PopularScience_19221201_0101_006_0196.xml
advertisement
96
96
[no value]
[no value]
ALDINE RADIO & MFG. CO.
[no value]
ALDINE RADIO & MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0197.xml
advertisement
96
96
[no value]
[no value]
Northwestern School of Taxidermy
[no value]
Northwestern School of Taxidermy
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0198.xml
advertisement
96
96
[no value]
[no value]
FINLAY ENGINEERING COLLEGE
[no value]
FINLAY ENGINEERING COLLEGE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0199.xml
advertisement
96
96
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19221201_0101_006_0200.xml
article
96
96
BETTER SHOP METHODS
[no value]
Interchangeable Bars Support Heavy Work on Machine Beds
[no value]
[no value]
[no value]
F. L. J.
IN A large Washington, D. C., machine shop, the need for supporting bars to erect work on the beds of planers, shapers, millers and other machines is met by means of the simple interchangeable fixture illustrated. These bars are simply threaded bolts with a V groove in the head and a nut.
PopularScience_19221201_0101_006_0201.xml
article
96
96
BETTER SHOP METHODS
[no value]
Turning Wooden Balls
[no value]
[no value]
[no value]
H. L.
A FIXTURE for turning wooden balls rapidly and accurately is made as shown in the accompanying illustration. The crank-shaped casting that forms the swiveling member is pivoted in the socket of the toolrest in such a way that the tool can be swung through the radius of the ball to be turned.
PopularScience_19221201_0101_006_0202.xml
article
97
97,98
BETTER SHOP METHODS
[no value]
Tailstock Turret Attachment for Duplicate Work on Small Lathe
[no value]
[no value]
[no value]
W. C. Carter
HAVE you ever had an urgent call for duplicate parts for some small device and wished for a turret lathe or a turret attachment on your small bench lathe? For the drilling, tapping, and counter-boring of duplicate parts, a turret attachment is almost a necessity, and one can be made without very much difficulty.
PopularScience_19221201_0101_006_0203.xml
advertisement
97
97
[no value]
[no value]
U. S. Light & Heat Corporation
[no value]
U. S. Light & Heat Corporation
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0204.xml
advertisement
98
98
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0205.xml
article
98
98
BETTER SHOP METHODS
[no value]
Jig for Drilling and Gaging an Awkward Shaped Piece
[no value]
[no value]
[no value]
J. H. MOORE
THE piece A had to be drilled at three places and the end of the fourth arm turned. The upper and last hole to be drilled was the most important of all, because it had to be in the proper relation both to the turned portion and the other two holes.
PopularScience_19221201_0101_006_0206.xml
article
99
99,100,101
The Home Workshop
[no value]
How to Burn Substitute Fuels to Best Advantage
[no value]
[no value]
[no value]
A. V. Hutchinson
IF, IN this critical winter, you can’t get the kind of fuel to which you are accustomed, just what can you do to your heating apparatus to adapt it to the new conditions? Natural gas and oil will be used in furnaces in certain limited localities; artificial gas and oil heaters will be used as auxiliaries.
PopularScience_19221201_0101_006_0207.xml
advertisement
99
99
[no value]
[no value]
CONTINENTAL RUBBER WORKS: VITALIC Bicycle Tires
[no value]
CONTINENTAL RUBBER WORKS
VITALIC Bicycle Tires
[no value]
[no value]
PopularScience_19221201_0101_006_0208.xml
advertisement
100
100
[no value]
[no value]
STROMBERG-CARLSON TELEPHONE MFG. CO.: Stromberg-Carlson Radio Head Set
[no value]
STROMBERG-CARLSON TELEPHONE MFG. CO.
Stromberg-Carlson Radio Head Set
[no value]
[no value]
PopularScience_19221201_0101_006_0209.xml
advertisement
100
100
[no value]
[no value]
Chief Draftsman Engineering Equipment Co.
[no value]
Chief Draftsman Engineering Equipment Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0210.xml
advertisement
101
101
[no value]
[no value]
The Veeder Mfg. Co.: Veeder Counters
[no value]
The Veeder Mfg. Co.
Veeder Counters
[no value]
[no value]
PopularScience_19221201_0101_006_0211.xml
advertisement
102
102
[no value]
[no value]
S. C. JOHNSON & SON
[no value]
S. C. JOHNSON & SON
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0212.xml
article
102
102
THE HOME WORKSHOP
[no value]
MAKING MARBLED PAPER for Christmas Gifts and Decorations
[no value]
[no value]
[no value]
Ernest Bade
MANY unusually attractive and colorful Christmas gifts can be made quite simply with the use of marbled paper. This is easily prepared and an infinite number of brilliant color combinations and interesting patterns are possible. The paper can be used for covering or decorating boxes, making Christmas cards and calendars, covers for diaries, memorandum and note books and other books, and as a lining for book covers.
PopularScience_19221201_0101_006_0213.xml
advertisement
103
103
[no value]
[no value]
SOUTHERN CYPRESS MFR’S. ASSN.
[no value]
SOUTHERN CYPRESS MFR’S. ASSN.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0214.xml
advertisement
104
104
[no value]
[no value]
RADIO DIRECTORY and PUBLISHING CO.
[no value]
RADIO DIRECTORY and PUBLISHING CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0215.xml
advertisement
104
104
[no value]
[no value]
The Palmer SCHOOL OF CHIROPRACTIC
[no value]
The Palmer SCHOOL OF CHIROPRACTIC
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0216.xml
article
105
105
THE HOME WORKSHOP
[no value]
An Electric Lamp Goldfish Bowl
[no value]
[no value]
[no value]
M. T.
ATTRACTIVE bowls for small goldfish may be made from 750and 1000-watt electric lamps. A hole is burned near the top of the bulb with a torch or cut out with a diamond and the lamp is filled with water. One or two fish are placed in it and the lamp is then mounted on a mogul socket.
PopularScience_19221201_0101_006_0217.xml
advertisement
105
105
[no value]
[no value]
GOODELL-PRATT COMPANY
[no value]
GOODELL-PRATT COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0218.xml
advertisement
106
106
[no value]
[no value]
SMITH & HEMENWAY CO., Inc.: Red Devil
[no value]
SMITH & HEMENWAY CO., Inc.
Red Devil
[no value]
[no value]
PopularScience_19221201_0101_006_0219.xml
advertisement
106
106
[no value]
[no value]
THE MONARCH MACHINE TOOL CO.
[no value]
THE MONARCH MACHINE TOOL CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0220.xml
advertisement
106
106
[no value]
[no value]
Dickson Memory School
[no value]
Dickson Memory School
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0221.xml
advertisement
106
106
[no value]
[no value]
HYRE ELECTRIC CO.
[no value]
HYRE ELECTRIC CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0222.xml
article
106
106
THE HOME WORKSHOP
[no value]
Novel Ski Coaster Is a Speedy, Durable Sled
[no value]
[no value]
[no value]
C. S. TAYLOR
THIS ski coasting sled will be found speedier than the ordinary toboggan, and as it is of good width and the seat as low as possible, it will not turn over easily. It is an inexpensive and easily made sled. For the runners 2 ash boards 10 ft. long, 6 in. wide, and ¾ or ⅞ in. thick are required.
PopularScience_19221201_0101_006_0223.xml
article
106
106
THE HOME WORKSHOP
[no value]
Facts and Figures on Heating
[no value]
[no value]
[no value]
[no value]
A TON of 2000 lbs. of bituminous coal requires 40 cu. ft. of space for storage, as compared with 36 cu. ft. for a ton of anthracite. One square foot of grate in a low pressure steam heater will consume from 3 to 5 lbs. of hard coal an hour. One square inch of grate is sufficient, under favorable conditions, to provide 1 sq. ft. of direct steam radiation in medium size heaters.
PopularScience_19221201_0101_006_0224.xml
article
107
107,108
THE HOME WORKSHOP
[no value]
Simple Mechanism Flashes Christmas Tree Lights
[no value]
[no value]
[no value]
[no value]
WHEN the Christmas-tree lights flash on and off alternately, first one color and then another, and again all aglow, the beauty of the lighting effect is considerably enhanced. The method for producing this is similar to that used in flashing large electric signs and is quite simple in its application.
PopularScience_19221201_0101_006_0225.xml
advertisement
107
107
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0226.xml
advertisement
107
107
[no value]
[no value]
UNION TOOL CHEST CO.
[no value]
UNION TOOL CHEST CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0227.xml
advertisement
107
107
[no value]
[no value]
HOBART BROS. CO.
[no value]
HOBART BROS. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0228.xml
advertisement
107
107
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0229.xml
advertisement
108
108
[no value]
[no value]
MANHATTAN ELECTRICAL SUPPLY CO.,INC.
[no value]
MANHATTAN ELECTRICAL SUPPLY CO.,INC.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0230.xml
article
108
108
THE HOME WORKSHOP
[no value]
Four Ways to Make Substantial Christmas-Tree Stands
[no value]
[no value]
[no value]
[no value]
THE most substantial and prettiest Christmas-tree stand I have seen is one a marble contractor made for me in return for a small favor. It is simply a cube of Vermont marble with the corners chipped off and a hole 2 in. in diameter bored in the center to receive the stem of the tree.
PopularScience_19221201_0101_006_0231.xml
article
108
108
THE HOME WORKSHOP
[no value]
What Is the Ideal Home Workshop Bench?
[no value]
[no value]
[no value]
[no value]
THE first essential in the home workshop is a bench, and if you haven’t a good one, an exhaustive article in the January Home Workshop will give you full information as to all the best types. These designs will include a cabinet workbench for the home worker.
PopularScience_19221201_0101_006_0232.xml
article
108
108
[no value]
[no value]
A thought on Yuletide giving
And a few hints on how to fill Father’s stocking
[no value]
[no value]
[no value]
Another Christmas is rapidly rolling around. Another year when you have to sit down and think—and think hard—what to give Uncle Arthur, Father, Cousin Edward, Grandfather and the rest. Every man—well, nearly every man— likes nothing better than a good pipe.
PopularScience_19221201_0101_006_0233.xml
article
109
109
THE HOME WORKSHOP
[no value]
Skate Bob Speeds Over Ice or Hard Snow
[no value]
[no value]
[no value]
DONALD W. CLARK
THREE skates serve as runners for this small bob, which is a speedy sled on hard-packed snow or ice. It can be steered either with hands or feet. The body is constructed mainly of ⅞ by 3 in. hardwood slats. To these are screwed two blocks of hard wood cut from pieces ⅞ by 3½ by 11 in.
PopularScience_19221201_0101_006_0234.xml
article
109
109
THE HOME WORKSHOP
[no value]
Makes $100 at Christmas with Totem Pole Calendars
[no value]
[no value]
[no value]
C. A. Strable
BY SELLING gaily colored Indian totem pole calendars, I am able to earn $100 extra money at Christmas. Some 3-in. cedar strips, ½ in. thick, are cut into 14-in. lengths and planed down very smooth. Then I transfer my pattern of the totem pole, which is drawn on paper, to the wood and cut it out to shape with a fretsaw.
PopularScience_19221201_0101_006_0235.xml
advertisement
109
109
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0236.xml
advertisement
110
110
[no value]
[no value]
THE TURNER BRASS WORKS
[no value]
THE TURNER BRASS WORKS
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0237.xml
advertisement
110
110
[no value]
[no value]
Gilson Slide Rule Co.
[no value]
Gilson Slide Rule Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0238.xml
advertisement
110
110
[no value]
[no value]
TOPPING & COMPANY
[no value]
TOPPING & COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0239.xml
advertisement
110
110
[no value]
[no value]
Advertisement: Popular Science
[no value]
[no value]
Popular Science
[no value]
[no value]
PopularScience_19221201_0101_006_0240.xml
advertisement
111
111
[no value]
[no value]
C. Brandes, INC.
[no value]
C. Brandes, INC.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0241.xml
advertisement
111
111
[no value]
[no value]
SIGNAL Electric Mfg.Co.
[no value]
SIGNAL Electric Mfg.Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0242.xml
advertisement
112
112
[no value]
[no value]
General Electric Company: Tungar
[no value]
General Electric Company
Tungar
[no value]
[no value]
PopularScience_19221201_0101_006_0243.xml
advertisement
112
112
[no value]
[no value]
Simmons Hardware Company
[no value]
Simmons Hardware Company
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0244.xml
advertisement
112
112
[no value]
[no value]
STANDARD FOOD & FUR ASS’N
[no value]
STANDARD FOOD & FUR ASS’N
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0245.xml
advertisement
112
112
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0246.xml
advertisement
113
113
[no value]
[no value]
Master Radio Corporation
[no value]
Master Radio Corporation
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0247.xml
advertisement
114
114
[no value]
[no value]
THE FLORSHEIM SHOE COMPANY
[no value]
THE FLORSHEIM SHOE COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0248.xml
advertisement
114
114
[no value]
[no value]
Advertisement: Adjusto-Lite
[no value]
[no value]
Adjusto-Lite
[no value]
[no value]
PopularScience_19221201_0101_006_0249.xml
advertisement
114
114
[no value]
[no value]
SHIPMAN-WARD MFG. CO.
[no value]
SHIPMAN-WARD MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0250.xml
advertisement
115
115
[no value]
[no value]
THE WAHL COMPANY
[no value]
THE WAHL COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0251.xml
advertisement
116
116
[no value]
[no value]
THE C. D. TUSKA COMPANY
[no value]
THE C. D. TUSKA COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0252.xml
advertisement
116
116
[no value]
[no value]
OIL-GAS BURNER & MACHINE CO.
[no value]
OIL-GAS BURNER & MACHINE CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0253.xml
advertisement
116
116
[no value]
[no value]
DE FOREST RADIO TEL. & TEL. CO.
[no value]
DE FOREST RADIO TEL. & TEL. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0254.xml
article
117
117
THE HOME WORKSHOP
[no value]
Stand with Water Reservoir Keeps Christmas-Tree Green
[no value]
[no value]
[no value]
C. K.
WE ALL hate to throw away the Christmas-tree, but the needles start to fall so soon that it is usually necessary long before Twelfth Night puts an end to the Christmas festivities. And yet the tree would remain fresh almost indefinitely if it were supplied with water.
PopularScience_19221201_0101_006_0255.xml
advertisement
117
117
[no value]
[no value]
The Rudolph Wurlitzer Co.
[no value]
The Rudolph Wurlitzer Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0256.xml
advertisement
118
118
[no value]
[no value]
Diamond State Fibre Company
[no value]
Diamond State Fibre Company
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0257.xml
advertisement
118
118
[no value]
[no value]
Automatic Electric Company
[no value]
Automatic Electric Company
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0258.xml
advertisement
118
118
[no value]
[no value]
WEST-ANGUS SHOW CARD SERVICE
[no value]
WEST-ANGUS SHOW CARD SERVICE
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0259.xml
advertisement
118
118
[no value]
[no value]
Farmer Burns School
[no value]
Farmer Burns School
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0260.xml
article
118
118,119
THE HOME WORKSHOP
[no value]
Book-Rack and Table Lamp Form a Novel Combination
[no value]
[no value]
[no value]
Ernest T. Bates
THE combination book-rack and table lamp illustrated, which has been much admired for its neat and novel appearance, cost me complete $3.75. It is made of maple, stained dark mahogany, shellacked and polished. Genuine mahogany or walnut would perhaps have been better and not a great deal more expensive.
PopularScience_19221201_0101_006_0261.xml
article
119
119
THE HOME WORKSHOP
[no value]
How to Make a Loudspeaker for Less than One Dollar
[no value]
[no value]
[no value]
H.L.
ONE of the least expensive and most satisfactory loudspeakers for a radio set having at least two stages of audio frequency amplification can be constructed as shown in the accompanying illustration. The telephone head set is fixed over a short piece of fiber or rubber tubing, to the center of which is attached either a phonograph horn or a megaphone of paper or tin.
PopularScience_19221201_0101_006_0262.xml
advertisement
119
119
[no value]
[no value]
ROYAL DIAMOND -AMP;AMP; WATCH CO.
[no value]
ROYAL DIAMOND -AMP;AMP; WATCH CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0263.xml
advertisement
120
120
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0264.xml
article
120
120,121,122
THE HOME WORKSHOP
[no value]
High Cost of Water Heating and How to Reduce It
[no value]
[no value]
[no value]
John H. Schalek
E. D. Ivory
ONE of the least suspected causes of high gas bills is the familiar tank water heater. After many tests to determine the best method of applying and conserving the heat supplied to the water in tank storage systems, it was found that thousands of gas consumers use nearly five times more gas to heat water for household purposes than is actually necessary.
PopularScience_19221201_0101_006_0265.xml
advertisement
121
121
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0266.xml
article
122
122
THE HOME WORKSHOP
[no value]
Spray of Boiling Water Removes Old Wallpaper
[no value]
[no value]
[no value]
C. J. WATTERS
ONE of the quickest methods of removing wallpaper utilizes a compressed-air tank sprayer of 5 gals. capacity. This is filled with boiling water, which is sprayed carefully on the walls so as not to damage woodwork or floors. The paper is easily removed; in fact much of it separates from the wall before it is TOUCHED.
PopularScience_19221201_0101_006_0267.xml
advertisement
122
122
[no value]
[no value]
W. L. Douglas Shoe Co
[no value]
W. L. Douglas Shoe Co
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0268.xml
advertisement
122
122
[no value]
[no value]
American Code, Inc.
[no value]
American Code, Inc.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0269.xml
advertisement
122
122
[no value]
[no value]
Advertisement: Popular Science
[no value]
[no value]
Popular Science
[no value]
[no value]
PopularScience_19221201_0101_006_0270.xml
advertisement
122
122
[no value]
[no value]
Harold Lachman Co.
[no value]
Harold Lachman Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0271.xml
article
123
123
THE HOME WORKSHOP
[no value]
“Sledan” Gives Baby Protection from Wintry Blasts
[no value]
[no value]
[no value]
Donald W. Clark
EVERY small boy and girl enjoys riding in an inclosed sled, or what may well be called a “sledan.” The body is independent of the sled and can either be attached to an old one or, if the builder has the time, a sled can be constructed to suit. Use oak, ash, or other hard wood for the sled.
PopularScience_19221201_0101_006_0272.xml
advertisement
123
123
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0273.xml
article
124
124,125
THE HOME WORKSHOP
[no value]
Penny-in-the-Slot Machine Vends Homemade Candy
[no value]
[no value]
[no value]
[no value]
A PENNY-IN-THE-SLOT machine is not difficult to build and can be used as a toy in the home or at carnivals and fairs to dispense homemade candies. It can be constructed mainly of wood without any difficult mechanical work. The size depends upon what is to be sold in it.
PopularScience_19221201_0101_006_0274.xml
advertisement
124
124
[no value]
[no value]
L.W.SWEET INC.
[no value]
L.W.SWEET INC.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0275.xml
advertisement
124
124
[no value]
[no value]
Washington School of Cartooning
[no value]
Washington School of Cartooning
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0276.xml
advertisement
124
124
[no value]
[no value]
AMERICAN SHOW CARD SCHOOL
[no value]
AMERICAN SHOW CARD SCHOOL
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0277.xml
advertisement
124
124
[no value]
[no value]
THE SPECIALTY MFG. CO.
[no value]
THE SPECIALTY MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0278.xml
article
125
125
THE HOME WORKSHOP
[no value]
How to Tint Copper Green
[no value]
[no value]
[no value]
T. W.
COPPER used outdoors for rain spouts, gutters, flashings, or other purposes useful or ornamental, can quickly be given the rich green tint that is caused ordinarily by two or three years’ exposure to the atmosphere. One method is to make a solution of 1 lb. of sal ammoniac and 5 gals. of water.
PopularScience_19221201_0101_006_0279.xml
advertisement
125
125
[no value]
[no value]
G. & C. MERRIAM COMPANY
[no value]
G. & C. MERRIAM COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0280.xml
advertisement
125
125
[no value]
[no value]
AMERICAN TECHNICAL SOCIETY
[no value]
AMERICAN TECHNICAL SOCIETY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0281.xml
article
126
126
THE HOME WORKSHOP
[no value]
Child’s Folding Chair Resembles Grotesque Cat
[no value]
[no value]
[no value]
J. F. J.
A CHILD’S chair that meets with instant approval from the youngsters because of its resemblance to a running cat, can be made from any odds and ends of ⅞-in. boards. The first step in making the chair is to lay out a full-size paper pattern. Then cut out the two back pieces, the front legs, and the arm rests.
PopularScience_19221201_0101_006_0282.xml
advertisement
126
126
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0283.xml
article
127
127
THE HOME WORKSHOP
[no value]
No Danger of Youngsters Falling from This Rocker
[no value]
[no value]
[no value]
[no value]
A ROCKER that is a delight to children and quite safe is readily constructed. The illustration is self-explanatory. For very small children the rockers may be made of good stout barrel hoops, using two pieces, one inside the other, to give ample strength.
PopularScience_19221201_0101_006_0284.xml
article
127
127
THE HOME WORKSHOP
[no value]
Silvering Old Electric Bulbs for Christmas Tree Ornaments
[no value]
[no value]
[no value]
[no value]
EVERY attic usually has an accumulation of old electric bulbs which are of no value and are invariably thrown out at every housecleaning season. These bulbs may be made into ornaments for the Christmas tree, and are as effective as the colored glass balls bought for the purpose.
PopularScience_19221201_0101_006_0285.xml
advertisement
127
127
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0286.xml
advertisement
128
128
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0287.xml
article
128
128
THE HOME WORKSHOP
[no value]
Fire in Stove Provides Smudge for Smoking Fish
[no value]
[no value]
[no value]
[no value]
AUTUMN and early winter, when the fish are at their best, are the times to catch and smoke them. Generally the smudge is made inside the house, but a better method is to use an ordinary sheet-iron heater with a pipe to carry the smoke into the house.
PopularScience_19221201_0101_006_0288.xml
article
128
128
THE HOME WORKSHOP
[no value]
Blacksmith-Penman Writes Cards to Make Extra Money
[no value]
[no value]
[no value]
[no value]
I DO not know what specific tools you have reference to, but if pens, penholder, and ink can be classified as tools, I will explain how I made extra money with tools that cost me about 12 cents. Twenty years ago, when I was married, I was earning a little over $7 a week in a blacksmith shop at York, Pa.
PopularScience_19221201_0101_006_0289.xml
advertisement
128
128
[no value]
[no value]
Correspondence Instruction
[no value]
Correspondence Instruction
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0290.xml
advertisement
128
128
[no value]
[no value]
JULIUS ANDRAE & SONS CO.
[no value]
JULIUS ANDRAE & SONS CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0291.xml
advertisement
128
128
[no value]
[no value]
STEFFEY MFG. CO.
[no value]
STEFFEY MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0292.xml
advertisement
129
129
[no value]
[no value]
VICTOR J. EVANS & CO.
[no value]
VICTOR J. EVANS & CO.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0293.xml
article
130
130,131
THE HOME WORKSHOP
[no value]
How to Make Your Own Radio Parts Economically
[no value]
[no value]
[no value]
Chester L. Pratt
MANY beginners hesitate to venture into the radio field because of the expense involved in buying parts. The majority of wireless fans in the long run purchase standard apparatus and parts because of the added efficiency which comes from expert designing and painstaking work-manship; but those who are experimenting with their first sets can save money by making use of materials that are obtainable for next to nothing.
PopularScience_19221201_0101_006_0294.xml
advertisement
130
130
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0295.xml
article
131
131
THE HOME WORKSHOP
[no value]
Boat Bell-Pull on Upper Floor Controls Furnace Draft
[no value]
[no value]
[no value]
[no value]
INNUMERABLE devices have been contrived for turning on the furnace without the inconvenience of making a cold trip down to the cellar in the early hours of the morning, but many of them are of such delicate construction that they soon cease to function, or they require so much time to regulate and set that they are soon discarded.
PopularScience_19221201_0101_006_0296.xml
advertisement
131
131
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0297.xml
article
132
132
THE HOME WORKSHOP
[no value]
How the Radio Fan Can Make a Series-Parallel Switch
[no value]
[no value]
[no value]
Loyd B. Gangawere
ALTHOUGH the writer designed this radio switch primarily for use with honeycomb or “spider web” coils, it is a convenient addition to other types of tuners in which the primaries are not closely tapped. The switch either throws the variable condenser in series with the primary coil and ground, or shunts it across the aerial and ground, thus avoiding the bothersome changing of connections.
PopularScience_19221201_0101_006_0298.xml
article
132
132
THE HOME WORKSHOP
[no value]
Hacksaw Blade Forms Cutter for Emery Cloth and Sandpaper
[no value]
[no value]
[no value]
M. L. K.
THIS cutter for emery cloth and sand-paper is readily added to the work-bench. It consists of a hacksaw blade resting on two washers fastened to the bench with two screws. The sheet of emery cloth or sandpaper to be cut is slid under the blade and ripped across the teeth.
PopularScience_19221201_0101_006_0299.xml
advertisement
132
132
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0300.xml
advertisement
133
133
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0301.xml
article
133
133,134
THE HOME WORKSHOP
[no value]
Earns More than One Dollar an Hour with Wood Turning
[no value]
[no value]
[no value]
Pearl Cork
BY SPECIALIZING in wood turning I have been able to make my home workshop pay cash dividends as well as provide endless entertainment. I keep a record of the time spent on articles such as those illustrated and figure it at $1 an hour, adding the total to the cost of the material.
PopularScience_19221201_0101_006_0302.xml
article
134
134
THE HOME WORKSHOP
[no value]
One Simple Template Serves for Blocking Out Signs
[no value]
[no value]
[no value]
[no value]
A QUICK way for laying out signs is to make a letter template of thin sheet metal or cardboard as illustrated. Mark around it to obtain the guide lines and spacing for the letters. The letters are spaced one square apart and there are two spaces between words.
PopularScience_19221201_0101_006_0303.xml
advertisement
134
134
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0304.xml
article
135
135
THE HOME WORKSHOP
[no value]
Automatic Cigarette Box Makes Novel Gift for Smokers
[no value]
[no value]
[no value]
B. FRANCIS DASHIELL
EVERY time this automatic cigarette box is operated, a cigarette appears in the slot on top. To the uninitiated, the operation is somewhat mysterious, but the box is not at all difficult to make. There are really two separate boxes or compartments; when the inner one is raised, a cigarette is deposited on the receiving post, and when the box is dropped or lowered, the cigarette remains on top ready for removal.
PopularScience_19221201_0101_006_0305.xml
advertisement
135
135
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0306.xml
advertisement
135
135
[no value]
[no value]
Radio Specialty Co.
[no value]
Radio Specialty Co.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0307.xml
advertisement
135
135
[no value]
[no value]
Jason Weiler & Sons
[no value]
Jason Weiler & Sons
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0308.xml
advertisement
136
136
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0309.xml
article
136
136,137
THE HOME WORKSHOP
[no value]
Toy Automobile Is Realistic Model of Sport Car
[no value]
[no value]
[no value]
Forrest L. Griffith
IN LOOKING around for a toy automobile to give my four-year-old boy as a Christmas present, I could find nothing that seemed exactly suitable, so I proceeded to make one myself. The result is illustrated in the accompanying photographs.
PopularScience_19221201_0101_006_0310.xml
article
137
137
THE HOME WORKSHOP
[no value]
Grid Leak for Radio Set Provides Variable Adjustments
[no value]
[no value]
[no value]
[no value]
A VARIABLE grid leak is an additional refinement for a vacuum tube radio set that can be added at a cost of not more than 50 cents. It permits making adjustments easily to meet variations in humidity and other causes that require the grid leak to be altered.
PopularScience_19221201_0101_006_0311.xml
article
137
137
THE HOME WORKSHOP
[no value]
Sawdust Used under Linoleum
[no value]
[no value]
[no value]
G.A.L.
WE HAD an office floor that was irregular and uneven. The first pieces of linoleum tacked down over it lasted only about six months because the uneven boards caused the linoleum to split. Before renewing the linoleum, the floor was covered with sawdust and raked level with a yardstick.
PopularScience_19221201_0101_006_0312.xml
advertisement
137
137
[no value]
[no value]
THE MAGNAVOX CO.: Magnavox Radio
[no value]
THE MAGNAVOX CO.
Magnavox Radio
[no value]
[no value]
PopularScience_19221201_0101_006_0313.xml
advertisement
137
137
[no value]
[no value]
ACME
[no value]
ACME
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0314.xml
advertisement
138
138
[no value]
[no value]
ELECTRICAL RESEARCH LABORATORIES
[no value]
ELECTRICAL RESEARCH LABORATORIES
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0315.xml
advertisement
138
138
[no value]
[no value]
C. G. Conn, Ltd.
[no value]
C. G. Conn, Ltd.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0316.xml
advertisement
138
138
[no value]
[no value]
WILSON METHODS LIMITED
[no value]
WILSON METHODS LIMITED
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0317.xml
advertisement
138
138
[no value]
[no value]
Weil Health Belt Company
[no value]
Weil Health Belt Company
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0318.xml
article
138
138,139
THE HOME WORKSHOP
[no value]
The Shipshape Home
How to Do the Odd Jobs
[no value]
[no value]
[no value]
IF AN ordinary faucet leaks, it is usually because the washer in the valve has become worn. To replace it is a simple matter if the water can be shut off from the fixture. First, see that the faucet is closed tightly and then unscrew the large hexagon at the top of the faucet so that it is loose on the stem.
PopularScience_19221201_0101_006_0319.xml
advertisement
139
139
[no value]
[no value]
THE PEPSODENT COMPANY
[no value]
THE PEPSODENT COMPANY
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0320.xml
advertisement
140
140
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0321.xml
article
140
140
THE HOME WORKSHOP
[no value]
Fire Extinguisher “Bombs” Made from Old Electric Bulbs
[no value]
[no value]
[no value]
H. F.
MANY homes, stores, garages and barns are not sufficiently equipped with fire extinguishers because of their expense, and this is one of the factors in the $500,000,000 fire loss sustained annually in the United States. One of the most effective types of fire extinguisher can, however, be made by any one from burned-out electric globes at little cost and less trouble, so that there is no excuse for going without adequate fire protection.
PopularScience_19221201_0101_006_0322.xml
article
140
140
THE HOME WORKSHOP
[no value]
Ashes from Kitchen Range Handled without Dust
[no value]
[no value]
[no value]
JOHN NICHOLS
ASH containers in the cellar should be kept covered, even if a pipe is provided for conveying the ashes from the kitchen range directly to an ash barrel. For a barrel into which such a chute discharges, provide a circular cover in which a hole has been cut the size of the outside diameter of the pipe.
PopularScience_19221201_0101_006_0323.xml
advertisement
143
143
[no value]
[no value]
MECCANO COMPANY, INC.
[no value]
MECCANO COMPANY, INC.
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0324.xml
advertisement
144
144
[no value]
[no value]
THE LIONEL CORPORATION: LIONEL ELECTRIC TOY TRAINS
[no value]
THE LIONEL CORPORATION
LIONEL ELECTRIC TOY TRAINS
[no value]
[no value]
PopularScience_19221201_0101_006_0325.xml
advertisement
145
145
[no value]
[no value]
Eastman Kodak Company: No. 1 Pocket Kodak, Series II
[no value]
Eastman Kodak Company
No. 1 Pocket Kodak, Series II
[no value]
[no value]
PopularScience_19221201_0101_006_0326.xml
advertisement
146
146
[no value]
[no value]
Victor Talking Machine Company
[no value]
Victor Talking Machine Company
[no value]
[no value]
[no value]
PopularScience_19221201_0101_006_0327.xml