Issue: 19260301

Monday, March 1, 1926
MARCH 1926
3
True
108
Saturday, December 13, 2014

Articles
cover
0_1
0_1
[no value]
[no value]
Popular Science MONTHLY
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0001.xml
advertisement
0_2
0_2
[no value]
[no value]
FAYETTE R. PLUMB, Inc.: PLUMB
[no value]
FAYETTE R. PLUMB, Inc.
PLUMB
[no value]
[no value]
PopularScience_19260301_0108_003_0002.xml
advertisement
1
1
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0003.xml
tableOfContents
2
2
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0004.xml
article
2
2
[no value]
[no value]
Don’t Miss These Features
[no value]
[no value]
[no value]
[no value]
BEGINNING in this issue, POPULAR SCIENCE MONTHLY offers $1,000 in cash prizes each month in a remarkable new Picture Contest in which John and Mary Newly wed return with fascinating problems for you to solve. This contest is open to everybody.
PopularScience_19260301_0108_003_0005.xml
advertisement
3
3
[no value]
[no value]
FANSTEEL PRODUCTS COMPANY, INC.: Balkite Radio Power Units
[no value]
FANSTEEL PRODUCTS COMPANY, INC.
Balkite Radio Power Units
[no value]
[no value]
PopularScience_19260301_0108_003_0006.xml
advertisement
4
4
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0007.xml
advertisement
5
5
[no value]
[no value]
VAUGHAN & BUSHNELL MANUFACTURING COMPANY
[no value]
VAUGHAN & BUSHNELL MANUFACTURING COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0008.xml
article
6
6
[no value]
[no value]
Do You Know How to Select Good Tools?
[no value]
[no value]
[no value]
HAZEN G. TYLER
SHOWN two hammers—one costing 50 cents and the other $1.60—would you be able to tell whether the difference in price was justified? Probably not, if the two hammers did not show more surface indication of their merits and demerits than the two illustrated above did when purchased.
PopularScience_19260301_0108_003_0009.xml
article
6
6
[no value]
[no value]
POPULAR SCIENCE Monthly Guarantee
[no value]
[no value]
[no value]
THE PUBLISHERS
The above seal on an advertisement indicates that the products referred to have been approved after test by the Popular Science Institute of Standards. Popular Science Monthly guarantees every article of merchandise advertised in its columns.
PopularScience_19260301_0108_003_0010.xml
advertisement
7
7
[no value]
[no value]
ALL-AMERICAN RADIO CORPORATION
[no value]
ALL-AMERICAN RADIO CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0011.xml
advertisement
8
8
[no value]
[no value]
Advertisements
[no value]
The Yale & Towne Mfg. Co.
The Yale Door Closer
The Yale & Towne Mfg. Co.
Yale 44 Automatic Deadlatch
[no value]
[no value]
PopularScience_19260301_0108_003_0012.xml
article
9
9
[no value]
[no value]
How Some Men Lead Double Lives
[no value]
[no value]
[no value]
S. N. B.
SINCE the early nineties, New York has known Oscar Tschirky, its most popular hotel host. “Oscar of the Waldorf,” immaculate, smiling, suave, is part and parcel of Fifth Avenue. Kings and potentates have decorated him. Financiers and statesmen call him their friend.
PopularScience_19260301_0108_003_0013.xml
advertisement
10
10
[no value]
[no value]
A. H. Grebe & Co., Inc.
[no value]
A. H. Grebe & Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0014.xml
masthead
11
11
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0015.xml
article
11
11,12,13
$1000 Cash Prizes Each Month
[no value]
John and Mary Newlywed Return in A Fascinating Picture Contest
One of These Prizes May Go to You
The Rules of the Contest—Read Them Carefully
Another Contest Next Month
How Many Mistakes Can You Find in This Picture?
[no value]
[no value]
[no value]
HERE they are again—John and Mary Newlywed —this time in a fascinating new series of Picture Contests . . . Just the kind of contests that will entertain you and the members of your family during the long evenings. . . . Just the kind to repay you materially in substantial cash prizes. . . .
PopularScience_19260301_0108_003_0016.xml
article
14
14
[no value]
[no value]
America’s First Scientist
A Mysterious Genius Labored in Mexico Long before Christ, Says Noted Explorer
[no value]
[no value]
[no value]
MORE than 2,500 years ago, there lived on the American continent a great scientist, a genius who made startling discoveries and formulated important principles in mathematics and astronomy that antedated by centuries the first attempts of the fathers of our modern science to peer beyond the veil that shrouded them from knowledge of their world.
PopularScience_19260301_0108_003_0017.xml
article
15
15,16,147,148
[no value]
[no value]
How Test Tubes Solve Crimes
The Story of a Remarkable Police Laboratory Where the Thinnest Thread Gives a Clue
Analyzing Poison in a Murder Mystery
[no value]
[no value]
G. B. SEYBOLD
TWO MEN, good friends for years, had quarreled. One night one of them, stepping out of his home, saw a man rise from a stooping position near the front porch and disappear around the corner. Under the porch he found a bundle of oil-soaked rags.
PopularScience_19260301_0108_003_0018.xml
article
17
17
[no value]
[no value]
Caging a Fierce Canyon Stream
[no value]
[no value]
[no value]
[no value]
AFTER 20 years of hazardous exploration and map making, government engineers recently announced details for the huge government project to tame the seething Colorado River and transform the Grand Canyon of Arizona into a scenic storage basin for power and irrigation.
PopularScience_19260301_0108_003_0019.xml
article
18
18,19,141,142
[no value]
[no value]
Folks Who Fly Their Own Airplanes
Doctors, Salesmen, Sportsmen Now Travel the Sky Roads—A Remarkable New Flying Auto
[no value]
[no value]
EDGAR C. WHEELER
FROM Germany recently came word of a spectacular and amazing development in the field of aeronautics— a flivver plane that is at the same time an automobile; a machine only 18 feet long and less than six feet wide when the wings are folded back, small enough to be housed in the ordinary one-car garage!
PopularScience_19260301_0108_003_0020.xml
article
20
20
[no value]
[no value]
Marvels of the Electric Home
How New Inventions Utilize Electric Light, Heat, and Power in Every Room of the House
[no value]
[no value]
[no value]
ELECTRICITY is changing our homes so swiftly and yet so smoothly that the younger generation today can scarcely conceive of homes as they were thirty years ago. One marvelous device after another has been imagined, invented and perfected.
PopularScience_19260301_0108_003_0021.xml
article
21
21,22,144,146
[no value]
[no value]
Can a Bald Man Grow Hair?
Don't Believe Everything the Barber Tells You—New Theories about Thin Locks
Exploded Theories of Baldness
[no value]
[no value]
FREDERIC DAMRAU
A CHOICE niche in the Hall of Fame is held reserved for the scientist who will show us how to grow hair on a bald man’s head. It will probably have to be held in reserve for a great many years to come. Medical men are apt to become pretty cocky when they contemplate the unquestioned triumphs of their science.
PopularScience_19260301_0108_003_0022.xml
article
22
22
[no value]
[no value]
New Penmanship Makes Your Writing Readable
[no value]
[no value]
[no value]
[no value]
HOW good is your handwriting? Do you have a system all your own with flourishes, crooks and dashes that give your friends and business associates brain fever when they try to decipher what you pen? Perhaps a typewriter has come to your rescue.
PopularScience_19260301_0108_003_0023.xml
article
23
23
[no value]
[no value]
A Bear Hunt 20,000 Years Ago
[no value]
[no value]
[no value]
[no value]
IN PREHISTORIC deposits at Predmost, Czecho-Slovakia, Prof. D. K. Absolon of Prague University recently uncovered the bones of a number of Pleistocene cave bears, huge animals, that often reached a height of 12 feet, and that were much more formidable beasts than the American grizzly.
PopularScience_19260301_0108_003_0024.xml
article
24
24,25
[no value]
[no value]
The Power of Five Niagaras
Tiny Drops of Water to Do the Work of 4,000,000 Horses
[no value]
[no value]
[no value]
FIVE times as much power as can be generated by the great dynamos on the United States side of Niagara! Enough to convert the South, with its peaceful corn and cotton fields, into a humming industrial center, and to make of the Tennessee river valley in the southern Appalachian mountains, an American Ruhr.
PopularScience_19260301_0108_003_0025.xml
article
26
26,27,146
[no value]
[no value]
Five New Ways to Test the Power of Your Mind
Try These Brain Teasers and Measure Your Abilities
Test Your Concentration
How Agile Is Your Mind?
Is Your Memory Good, and How Rapidly Do You Learn?
See How Quickly You Can Do This One
Are You Good at Numbers?
[no value]
[no value]
[no value]
HERE are five new ways to measure the power of your mind; five fascinating methods of obtaining an index to your talents and capabilities. They form the second group of the remarkable series of scientific tests arranged for the readers of POPULAR SCIENCE MONTHLY by Dr. Albert Johanson, of the Department of Psychology, Columbia University, according to the principles utilized by eminent scientists in measuring intelligence and supplying vocational guidance.
PopularScience_19260301_0108_003_0026.xml
article
28
28,29,30,138,139,140
[no value]
[no value]
Mistakes I Made When I Built My House
Why my floors creak and floods threaten the basement—How I almost asphyxiated my family—Pitfalls that you can avoid
Don’t Miss This Unusual Series
He Is His Own Mechanic
My Twelve Worst Mistakes
[no value]
[no value]
JOHN R. McMAHON
TWELVE years ago I built a house, and entwined about it some magazine articles and a book called The House that Junk Built. Now I shall make that house confess its secret sins, bare its vitals to the world, expose the skeletons in its scanty closets, tell how it might have been a better house if the amateur builder had not forced it to take the first wrong step; in short, inform and warn others of the more or less hideous pitfalls that await an innocent little home-schemed domicile which rambles down the corridors of time.
PopularScience_19260301_0108_003_0027.xml
article
31
31,32,149,150,151
[no value]
[no value]
He Freed Women from Drudgery
How a Young Mechanic Battled Poverty and Ridicule to Perfect a Great Idea
Where Women Slaves Become Masters
[no value]
[no value]
ROBERT E. MARTIN
IN A back alley in Boston a hundred years or so age man named Ari Davis rented a small shop, installed a few tools and machines, and hung out a shingle containing his name and the single word “mechanic.” Today we would call Davis a handyman, possibly even a jack-of-all-trades, for he wielded paintbrush or hammer, file or awl with equal readiness and equal facility, and cared little what was the nature of the job he was asked to do provided his patron was willing to pay for it.
PopularScience_19260301_0108_003_0028.xml
article
32
32
[no value]
[no value]
A Million Dollars’ Worth of Motor Cars at a Glance
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0029.xml
article
33
33
[no value]
[no value]
Mysteries that Ride the Mails
Strange Objects and Ugly Plots Found by the Dead Letter Office
[no value]
[no value]
[no value]
NO PLACE in the world, perhaps, holds as many unsolved mysteries in as many odd forms as does Uncle Sam’s Dead Letter Office in Washington. Not only is this mail morgue the final resting place for letters and parcels that go astray because of faulty addresses, but it is also the repository for contraband goods such as firearms, alcohol and narcotics, as well as deadly bombs and infernal machines.
PopularScience_19260301_0108_003_0030.xml
article
34
34,35,152,153
[no value]
[no value]
Do Athletes Die Young?
Careers of famous stars in boxing, football, baseball, rowing, tennis and track tend to show that the man who engages in strenuous sport has as good a chance for long life as anybody—The “athletic heart” bugaboo—When it’s time to let up
[no value]
[no value]
ARTHUR GRAHAME
IS THE path of athletic glory a short cut to the grave? Are the star athletes of today, in the pride of their youthful strength, placing on their marvelous bodies strains that will leave those bodies easy prey for the ills of middle-aged tomorrow?
PopularScience_19260301_0108_003_0031.xml
article
36
36,37,154,155
[no value]
[no value]
How a Million Lights Paint the Gay White Way
The Amazing Story of a $20,000,000 Electrical Display
[no value]
[no value]
MARSHALL D. BEUICK
“KEEP the lights alive—at any cost! That’s the rule. If this big sparkler went dark for ten minutes, our company would lose $1,000. But it’s more than a matter of money. To keep New York's sky signs flashing through every second of their night life is a code of the game, with us.
PopularScience_19260301_0108_003_0032.xml
article
38
38,39
[no value]
[no value]
New Links in the Ever-Growing Girdle of Science
Cheaper Houses Made of Glass—New Sources of Rubber—Some Other Useful Discoveries
Has the Glass House Come?
Doctor Drinks Deadly Parasites
Soap a Germ Killer
Sugar from Artichokes
U. S. Death Rate Lower
Synthetic Rubber in Sight
Through the Tail of a Comet
Another Chemical Victory
Aerial Night Photography
[no value]
[no value]
[no value]
SHALL we all live in glass houses some day? Mr. G. A. Shieds, an Ohio inventor, claims to have found a way to make houses of glass, at a cost 20 per cent less than that of frame ones. No paint, no plaster, no wallpaper. Soap and water would keep them clean and sanitary.
PopularScience_19260301_0108_003_0033.xml
article
40
40
[no value]
[no value]
Women Who Hold Men’s Jobs
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0034.xml
article
41
41
[no value]
[no value]
Seven Ways in Which Seven Men Defy Age
[no value]
[no value]
[no value]
[no value]
THE veteran sportsmen on this page prove that rational physical exercise is the real secret of how to be youthful in ripe old age. The human body wears out prematurely only when it is worked too hard or not hard enough.
PopularScience_19260301_0108_003_0035.xml
article
42
42
[no value]
[no value]
Famous Train Installs an Electrical Kitchen
[no value]
[no value]
[no value]
[no value]
THE Flying Scotsman, a train that runs between London and Edinburgh, has recently installed a complete electrical kitchen in its diner. The electricity is supplied by means of a dynamo run by the motion of the train. Cooking by pressing buttons enables the kitchen to occupy the minimum of space, which obviously is of great importance in diner construction.
PopularScience_19260301_0108_003_0036.xml
article
42
42
[no value]
[no value]
Novel Type of Key Holder Is Handy in Use
[no value]
[no value]
[no value]
[no value]
IF YOU ever have stood in a dark hall, trying to disengage your key from its entanglement with the other keys in your ring, you know how trying is the habit of keys with the ordinary ring. Here is a new type of key holder, in which the key swings out like the blade of a knife.
PopularScience_19260301_0108_003_0037.xml
article
42
42
[no value]
[no value]
The Human Voice to Control Electrical Current?
[no value]
[no value]
[no value]
[no value]
AN ENGINEER of Nottingham, England, claims to have discovered an invention that controls electric current by speech. It is possible by this invention, it is said, to stop and release current. The sound waves of the voice are transformed in such a way that they will control any electrical circuit.
PopularScience_19260301_0108_003_0038.xml
article
42
42
[no value]
[no value]
Runs Motor Bus on Rails for Greater Speed
[no value]
[no value]
[no value]
[no value]
ECONOMY for the railway company and comfort for the passengers are assured in this motor bus and trailer operated on a railway track in England. The only way in which the vehicle differs from a bus traveling on the highway is that its inflated tires have been replaced with flanged wheels.
PopularScience_19260301_0108_003_0039.xml
article
42
42
[no value]
[no value]
A Lamp that Casts No Shadow Has Many Uses
[no value]
[no value]
[no value]
[no value]
HERE is something that would fit right in a hair raising, nerve thrilling mystery story—a light that casts no shadow. In the photograph you see that though the woman’s hands are clearly between the light and the table, there is no trace of a shadow.
PopularScience_19260301_0108_003_0040.xml
article
43
43
[no value]
[no value]
He Says His Lifeboat Prevents Submarine Fatalities
[no value]
[no value]
[no value]
[no value]
A RESIDENT of San Francisco, Daniel J. Carr, has invented a lifeboat to be carried in submarines. It is a cylindrical steel compartment that would be accommodated in the superstructure of the sub’s walking deck. The floor door is fastened in such a manner that in an emergency it could be released readily, when the boat would float to the top of the sea by reason of its own buoyancy.
PopularScience_19260301_0108_003_0041.xml
article
43
43
[no value]
[no value]
Mechanical Rack Raises Car Easily to Working Height
[no value]
[no value]
[no value]
[no value]
IF YOU ever have had occasion to get under your car, without the assistance of a mechanical device to raise or tip it, you will appreciate a recently invented rack, mechanically operated, which is at once a tipping, conveying, and service device.
PopularScience_19260301_0108_003_0042.xml
article
43
43
[no value]
[no value]
New Plane Designed to Climb Nine Miles
[no value]
[no value]
[no value]
[no value]
TO RAISE still further what aviators call “the ceiling” of the sky, a remarkable new type of airplane designed to climb an altitude of 50,000 feet, or more than nine miles, is being constructed at McCook Field, Dayton, O., the War Department recently announced.
PopularScience_19260301_0108_003_0043.xml
article
43
43
[no value]
[no value]
Motorized Hansom Cab Is Now Popular in Paris
[no value]
[no value]
[no value]
[no value]
ANY elegant old gentleman about town, in London or New York, will tell you of the comfort of the hansom cab, and the delight of driving in one, with doors wide open, down Pall Mall or Fifth Avenue, on a sunny day in spring. Perhaps we soon shall have an opportunity to test the truth of his tale.
PopularScience_19260301_0108_003_0044.xml
article
43
43
[no value]
[no value]
New Kite Inspired by Flettner’s Rotor Ship
[no value]
[no value]
[no value]
[no value]
SINCE the time Flettner's first ship skimmed over the water propelled by a huge rotating cylinder, last year, inventors have been working on adaptations of this new way of propelling craft. In the photograph is seen a rotor kite flown at a recent aerial jubilee at Lindenberg, Germany.
PopularScience_19260301_0108_003_0045.xml
article
43
43
[no value]
[no value]
Devices Invented for Raising Sunken Submarines
[no value]
[no value]
[no value]
[no value]
RECENTLY news came from Tokio that a Japanese had invented an entirely new device for raising sunken submarines. Almost simultaneously with that news comes word that Dr. J. Townsend Parr, of Oakland, Calif., had perfected an invention to bring sunken ships to the surface without the aid of divers.
PopularScience_19260301_0108_003_0046.xml
article
44
44,45
[no value]
[no value]
The Most Thrilling Game in the World
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0047.xml
article
46
46
[no value]
[no value]
This Phone Meter Registers Length of Calls
[no value]
[no value]
[no value]
[no value]
IF YOU use your telephone very little, and Mrs. Jones down the line uses hers for 20-minute visits, then she ought to pay more for her service. So believes a California man who has devised a way to make her pay. Frank S. Rich, of Los Angeles, invented this new meter device that registers calls by their length.
PopularScience_19260301_0108_003_0048.xml
article
46
46
[no value]
[no value]
Wire Clamp that Replaces 42 Other Devices
[no value]
[no value]
[no value]
[no value]
IF ALL that is claimed for it is true, this sturdy turnbuckle clamp must be worth its weight in gold. The maker declares that for fastening wire, whether to stretch it or for other purposes, the clamp does all that 42 other articles can do and he lists the 42 items which he thinks his clamp may replace.
PopularScience_19260301_0108_003_0049.xml
article
46
46
[no value]
[no value]
First Electrically Driven Passenger Ship
[no value]
[no value]
[no value]
[no value]
WHEN the Gripsholm sailed up the Hudson River in New York recently, the huge motor-driven liner was the first of its kind seen in America. No smoke, no soot, for not a particle of steam is used on this Swedish ship, not even for heating or cooking.
PopularScience_19260301_0108_003_0050.xml
article
46
46
[no value]
[no value]
An Instrument to Test Solid Concrete
[no value]
[no value]
[no value]
[no value]
THE U. S. Bureau of Standards has developed an electrical device, called a “telemeter,” to measure accurately the stresses and changes of pressure in a solid concrete structure. The telemeter consists of a stack of carbon disks, both ends of which are connected by electric wires with recording instruments.
PopularScience_19260301_0108_003_0051.xml
article
46
46
[no value]
[no value]
A Lock Washer that Will Really Lock
[no value]
[no value]
[no value]
[no value]
A LOCK washer that really locks is the claim for this thin ring of highly hardened steel cut in the shape of a miniature gear. The teeth are set at a slight angle so that when pressed between a nut and a metal surface they dig into the softer metal.
PopularScience_19260301_0108_003_0052.xml
article
46
46
[no value]
[no value]
New One-Hand Drill
[no value]
[no value]
[no value]
[no value]
HERE is a light electric drill, weighing but 3½ pounds, that may be operated with only one hand, may be carried about easily, and can be handled for a long time without fatigue to the operator. The grip of the drill being on a direct line with the chuck gives a straight-line pressure on the drill bit, thus eliminating side strain.
PopularScience_19260301_0108_003_0053.xml
article
46
46
[no value]
[no value]
Shoe-Polishing Outfit at the End of a Handle
[no value]
[no value]
[no value]
[no value]
DAUBER, brush, and polisher all at the end of one handle—that’s compactness. Stephen Murphy, of San Francisco, never could keep together all the things needed for polishing his shoes, so he used his inventiveness to figure out the handy combination illustrated.
PopularScience_19260301_0108_003_0054.xml
article
47
47
[no value]
[no value]
New Type of Armored War Tank Appears in England
[no value]
[no value]
[no value]
[no value]
THE light tank illustrated above is Britain’s latest achievement in this type of war machine. It is 17 feet long and 8 feet 6 inches broad. A three-pounder quick-firing gun is the main armament, with Hotchkiss and Vickers machine guns to back it.
PopularScience_19260301_0108_003_0055.xml
article
47
47
[no value]
[no value]
Carry Your Chair with You in a Cane
[no value]
[no value]
[no value]
[no value]
A CANE that also serves as a seat is a familiar sight in England, where spectators use them at polo meets, races, and on the moors in the shooting season, also on the sidelines at any outdoor sports, and between events. Now that it has reached the United States, we may find other uses for it.
PopularScience_19260301_0108_003_0056.xml
article
47
47
[no value]
[no value]
Fountain Pen Is Designed for Lettering
[no value]
[no value]
[no value]
[no value]
LETTERING can be done with the ease of writing, it is claimed, with a new fountain pen made specially for this work. There is a constant flow of ink automatically controlled by the pressure used in writing, and by it letters can be formed continuously, without having to patch them up later.
PopularScience_19260301_0108_003_0057.xml
article
47
47
[no value]
[no value]
A Collapsible Floating Chair for Bathers
[no value]
[no value]
[no value]
[no value]
THE inventor of this collapsible floating chair for bathers is Thomas La Farina. The bottom and back of the chair are made of slats. A piece of U-shaped rubber tubing is fitted between two boards at each side. Curved pieces on top of the boards serve as handles.
PopularScience_19260301_0108_003_0058.xml
article
48
48
[no value]
[no value]
Ingenious Machine for Picking and Husking Corn Rapidly
[no value]
[no value]
[no value]
[no value]
OPERATING at three times the speed of a hand picker, a machine for picking and husking corn in the fields has been added to equipment designed to make farm work easier. It is hitched to a tractor and is run by power obtained from the tractor by means of a special power take-off attachment that works in soft ground where traction is poor.
PopularScience_19260301_0108_003_0059.xml
article
48
48
[no value]
[no value]
Tree Seeds Threshed by Machinery
[no value]
[no value]
[no value]
[no value]
ON LANDS bared by forest fires, nature can’t be depended upon to reproduce forests quickly enough. United States foresters must help by sowing tree seeds. But it takes 200,000 seeds of Western yellow pine to plant a single acre. Collecting all these and getting them ready for sowing is a real job.
PopularScience_19260301_0108_003_0060.xml
article
48
48
[no value]
[no value]
High Altitudes Destroy Plane Power
[no value]
[no value]
[no value]
[no value]
TESTS made by the U. S. Bureau of Standards show that the engine power of a plane is reduced one-third when it rises to an altitude of 30,000 feet above sea level. Many experiments were made and they all demonstrate that the loss of power is caused by the steady drop of air pressure, as the machine ascends.
PopularScience_19260301_0108_003_0061.xml
article
48
48
[no value]
[no value]
A New Fuel from Bark
[no value]
[no value]
[no value]
[no value]
PRESSED bark, mixed with wood waste, is a new fuel that can be used to replace some of the coal required by mill boilers. When 50 per cent of the moisture which the bark contains is removed, the bark is changed from cumbersome waste, which will not burn alone, into a low-grade fuel.
PopularScience_19260301_0108_003_0062.xml
article
48
48
[no value]
[no value]
An Orchard Device to Sort Fruit Mechanically
[no value]
[no value]
[no value]
[no value]
ANOTHER machine to save cost of labor. This mechanical fruit sorter, which can be carried out into the orchard and set up anywhere, is said to be much more rapid and efficient than the usual hand methods. Oranges, apples, or other fruit are fed from a hopper to a wide perforated rubber belt.
PopularScience_19260301_0108_003_0063.xml
article
49
49
[no value]
[no value]
A Fire Truck with Self Supporting Ladder
[no value]
[no value]
[no value]
[no value]
LOUISVILLE, Ky., recently acquired a new type of fire truck with ladder which is not supported against a burning building, but stands on its own base. When extended to its full length the ladder is 85 feet high and can hold eight men with safety, it is claimed.
PopularScience_19260301_0108_003_0064.xml
article
49
49
[no value]
[no value]
A Convenient New Frame for Hacksaw Blades
[no value]
[no value]
[no value]
[no value]
THE above photo shows a convenient holder for hacksaw blades used in cutting corrugated iron and other sheet metals, asbestos sheets, ebonite, and various compositions, if set in this new saw frame, an English invention. The blade is set at an angle so that it will cut through any length or width of material.
PopularScience_19260301_0108_003_0065.xml
article
49
49
[no value]
[no value]
She Keeps Her Golf Score on Her Bracelet
[no value]
[no value]
[no value]
[no value]
CARRYING your golf score on a wristband is the latest innovation for the golf links that recently arrived here from England. The score for two players fits in a leather case strapped around the wrist. The whole thing, including pencil, is little larger than a wrist watch and provides a convenient way to keep track of the score.
PopularScience_19260301_0108_003_0066.xml
article
49
49
[no value]
[no value]
Pianos for the Tropics Must Fight Moisture
[no value]
[no value]
[no value]
[no value]
WHEN you think of what happens to your piano during damp weather, you can imagine what would happen to pianos in the tropics, with the long rainy seasons. Pianos for the tropics are built especially to withstand moisture. No veneer can be used, only solid wood; all joints must be dovetailed together instead of using glue. The wood must be insect-proof, such as cedar, and the felt inside must be soaked in insect poison.
PopularScience_19260301_0108_003_0067.xml
article
49
49
[no value]
[no value]
How Quickly Can a Trolley Car Stop?
[no value]
[no value]
[no value]
[no value]
AT A recent trial in a California city, a young woman was suing for injuries suffered in a streetcar accident. An ex-motorman testified that a car traveling 20 miles an hour could be stopped in a space of 30 feet. The young woman’s counsel denied vehemently the ex-motorman’s statement.
PopularScience_19260301_0108_003_0068.xml
article
50
50
[no value]
[no value]
Masters of Curious Jobs
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0069.xml
article
51
51
[no value]
[no value]
Odd Things Taught in Schools
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0070.xml
article
52
52
[no value]
[no value]
A Club for Retrieving Golf Balls
[no value]
[no value]
[no value]
[no value]
CAPTAIN C. L. MIDDLETON, of Washington, D. C., has invented a novel device that he calls a “fisher for golf balls,” a cuplike scoop, at the end of a handle, with holes in the bottom to let the water run out. This handle is telescopic and when collapsed is but little longer than a golf club. In general appearance the golf-ball fisher looks like a driver or brassie and may be carried in one’s golf bag with other clubs. The picture at the left shows the “fisher” collapsed.
PopularScience_19260301_0108_003_0071.xml
article
52
52
[no value]
[no value]
A Convenient New Case for Pressing Your Ties
[no value]
[no value]
[no value]
[no value]
THE London man of fashion is keeping his ties smooth with this new tie press, which soon will be introduced in America. A stout piece of cardboard is inserted in each tie, keeping it stretched in shape while not worn. There are four pockets in the case holding four ties.
PopularScience_19260301_0108_003_0072.xml
article
52
52
[no value]
[no value]
Bicycle Pump Used to “Break in” Pipes
[no value]
[no value]
[no value]
[no value]
AN INGENIOUS English tobacconist employs an ordinary bicycle pump to “break in” new pipes for his customers. After the pipe is loaded the stem is connected with the pump, the light is applied, and the pump handle worked slowly until the tobacco is consumed.
PopularScience_19260301_0108_003_0073.xml
article
52
52
[no value]
[no value]
Germany Produces Sheet Steel as Transparent as Glass
[no value]
[no value]
[no value]
[no value]
SHEETS of steel so thin that they are transparent recently were produced by Dr. Karl Mueller of the Technical Institute of Berlin, Germany. The test plates used to determine the transparency of optical glass, and ruled with lines one twenty-five hundredth of an inch apart, were photographed through such a metal sheet.
PopularScience_19260301_0108_003_0074.xml
article
52
52,158
[no value]
[no value]
How Much Do YOU Know about Science?
[no value]
[no value]
[no value]
[no value]
THE following questions were selected from hundreds that daily are received by POPULAR SCIENCE MONTHLY. How many of them can you answer? They concern facts of the world in which we live. After you have tested your knowledge of things we should all know, turn to page 158 to discover how many of the 12 questions you were able to answer correctly.
PopularScience_19260301_0108_003_0075.xml
article
52
52
[no value]
[no value]
A Flashlight Lantern for Awkward Places
[no value]
[no value]
[no value]
[no value]
FOR awkward jobs in obscure places, where the old-time flickering lantern once was used, a new flashlight lantern has been designed. It stands on its own base and projects a constant, steady light on any spot, leaving the workman’s hands entirely free for work.
PopularScience_19260301_0108_003_0076.xml
article
52
52
[no value]
[no value]
To Protect Your Baby’s Bottle
[no value]
[no value]
[no value]
[no value]
THE inventor of the “baby bottle protector,” which is shown at the right, is Mr. Joseph McCrink of Newark, N. J. This device, made of one piece of rubber, can be put on or taken off in a few seconds. The ribs of the protector make it easy for a child to hold the bottle, or they also can be used to tie the bottle to the crib.
PopularScience_19260301_0108_003_0077.xml
article
52
52
[no value]
[no value]
This Novel Plow Needs No Horse
[no value]
[no value]
[no value]
[no value]
FOR the man with a small plot of land and no horse, the automatic plow illustrated possesses unusual interest. It was invented in France, where the average farm is small and draft animals scarce and expensive. One man works the plough by turning a hand winch on the handle.
PopularScience_19260301_0108_003_0078.xml
article
53
53
[no value]
[no value]
New Plane Takes Off from Land, Ice, or Water
[no value]
[no value]
[no value]
[no value]
A BOAT that will fly from land, water or ice! Twenty years ago such a marvel would have been held highly improbable, not to say impossible. But so rapidly have the wheels of scientific invention gone round in the last 20 years, that such a boat has been built and such a boat actually was put in operation recently in the Great Lakes region.
PopularScience_19260301_0108_003_0079.xml
article
53
53
[no value]
[no value]
New Rustless Diving Suit
[no value]
[no value]
[no value]
[no value]
AN ENGLISH inventor, Mr. J. S. Peress of Byfleet, recently sent to the Shipping Exhibition, at Olympia, London, England, his newest invention, a rustless diving suit. It is made of rustless steel that guarantees, it is said, the free play of the joints at all times.
PopularScience_19260301_0108_003_0080.xml
article
53
53
[no value]
[no value]
Insulated Fuse Puller
[no value]
[no value]
[no value]
[no value]
"SAFETY first" when you go to the fuse box, either to pull out or replace a fuse, will have you use a tool instead of your fingers. The new fuse puller illustrated is made of horn fiber and grips the fuse tightly until it is in place. It comes in two sizes, one pocket size made in five leaves, and a giant size, seven-layered, with extra large capacity.
PopularScience_19260301_0108_003_0081.xml
article
53
53
[no value]
[no value]
Know Your Car
[no value]
[no value]
[no value]
[no value]
THE generator that supplies the electric current needed for the lights, ignition, and starter should be regulated to suit the driving habits of the man who owns the car. The amount of current you need for keeping your battery charged properly depends entirely on the treatment the car receives.
PopularScience_19260301_0108_003_0082.xml
article
53
53
[no value]
[no value]
How Colder Water Guides Salmon
[no value]
[no value]
[no value]
[no value]
THE mystery of how salmon find their way year after year to their spawning ground, is believed to have been solved recently. Professor Henry B. Ward, of the University of Illinois, who has made an intensive study of salmon, discovered that temperature plays a large part in the fish’s life.
PopularScience_19260301_0108_003_0083.xml
article
54
54
[no value]
[no value]
Curious and Useful New Inventions
Something New in Men’s Wear—a "Dickey Vest"
A Bullet-Proof Shield for the Police
New Zworkin Tube Starts Washing Machine
Bright Plumage Is Birds’ Protection
Want More Helium
Look Out, Boys, for the Electrical Spanker!
[no value]
[no value]
[no value]
IF HE should forget and take off his coat, that would give him away, and some rude person might laugh. For the man in the illustration at the right is wearing the latest in men’s wear—a backless vest. It is very economical, requiring only material for the front, which is held in place by a belt around the waist and a strap back of the collar.
PopularScience_19260301_0108_003_0084.xml
article
55
55
[no value]
[no value]
Strange Sources of Music
An Amazing Instrument That Plays Music with Beams of Light
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0085.xml
article
56
56,57
[no value]
[no value]
Automatic Signal Robs Fog of Its Many Dangers
New Advances Made by Science in the Conquest of Ignorance
Serum for Broken Bones
A Fishing Thermometer
New Sugar Values
A Quart a Day
How We Rank
Iron Necessary to Life
"Skim Milk" Products
[no value]
[no value]
[no value]
FOG creeps up the Irish Channel. It grows denser. Then suddenly from a lighthouse comes the blaring, mournful blast of a foghorn. At regular intervals the warning is repeated. If you climb up into this lighthouse in Dublin, Ireland, you will see no one, for the warning is automatic.
PopularScience_19260301_0108_003_0086.xml
article
58
58,59
[no value]
[no value]
They Lighten Woman’s Job
New Ways Which Alert Homemakers Cut Drudgery, From Novel Broom-Mops to Self-Stirring Teapots
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0087.xml
article
60
60,61
[no value]
[no value]
How to Be a Fan A Fascinating New Radio Hobby
When Reception Was Good
When Reception Was Poor
[no value]
[no value]
JOHN CARR
DO YOU still get a thrill when you hear a station a thousand miles away on your radio receiving set? If the hunt for distant stations has begun to bore you, you may get a new “kick” from radio weather observation. Hundreds of fans in every part of the country are beginning to manifest interest in efforts to solve one of Nature’s most mysterious secrets—the connection between the weather and radio reception.
PopularScience_19260301_0108_003_0088.xml
article
62
62
[no value]
[no value]
New Products of Radio Genius
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0089.xml
article
63
63,64
[no value]
[no value]
How to Use Radio B Eliminators
Any Wall Plug Will Serve You as Well as a Good Battery
It’s Simple to Install
[no value]
[no value]
ALFRED P. LANE
THE REMARKABLE progress in the design and manufacture of B battery eliminators now gives you three possible sources of supply for the current to operate the plate circuit of your vacuum tubes. You can use dry cell B batteries, storage B batteries or one of the wonderful new B battery eliminators now on the market; and even the expert can not tell which is being used on your set, so far as results are concerned.
PopularScience_19260301_0108_003_0090.xml
article
65
65
[no value]
[no value]
Novel Auto Tools and Fittings
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0091.xml
article
66
66,156,157
[no value]
[no value]
When Your Ignition Goes Bad
Gus Explains Why Spark Plugs Foul, and Why It Pays to Carry a Spare Condenser in Your Car
[no value]
[no value]
MARTIN BUNN
"HERE is the most remarkable spark plug in the world!” asserted the salesman, as he swung his sample case up on the corner of Joe Clark’s desk and opened the cover with a flourish. “Can't foul—gives the hottest kind of a spark— never breaks down— lasts forever— and you can sell it at a good profit.”
PopularScience_19260301_0108_003_0092.xml
advertisement
67
67
[no value]
[no value]
S. C. JOHNSON & SON
[no value]
S. C. JOHNSON & SON
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0093.xml
article
68
68
[no value]
[no value]
Ideas You Can Use on Your Car
These Ingenious Kinks Will Save You Time and Trouble
TEN DOLLARS FOR AN IDEA!
[no value]
[no value]
[no value]
THE AVERAGE motorist who attempts to remove a dent in his fender usually ends up removing the paint as well. In most cases, however, it is possible to remove the dent so that it hardly shows at all and without damaging the paint, provided, of course, that the accident which caused the dent did not injure the paint.
PopularScience_19260301_0108_003_0094.xml
advertisement
69
69
[no value]
[no value]
TRIMONT MFG. CO.: TRIMO pipe wrench
[no value]
TRIMONT MFG. CO.
TRIMO pipe wrench
[no value]
[no value]
PopularScience_19260301_0108_003_0095.xml
advertisement
70
70
[no value]
[no value]
NICHOLSON FILE COMPANY
[no value]
NICHOLSON FILE COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0096.xml
article
71
71,102,104
The Home Workshop
[no value]
Furniture Refinishing Made Easy
An Expert Reveals the Secrets You Need to Know when Restoring Antiques
[no value]
[no value]
RALPH G. WARING
DAN, one of the apprentices, came eagerly into the laboratory to see me the other day. “Mother has some old, worn pieces of furniture that have been in our family a long time,” he began. “I would like very much to fix them up for her and the men told me to come in and ask you about it, Mr. Waring.
PopularScience_19260301_0108_003_0097.xml
article
72
72,88,90,92
[no value]
[no value]
Just What Tools Do You Need?
Four Ideal Assortments for the Home Workshop Are Chosen by a Jury of Expert Craftsmen
The Jury of Tool Experts
Ideal Shipshape Home Set
Small Home Workshop Outfit
The Ideal Home Workshop Outfit
[no value]
[no value]
[no value]
GOOD tools delight the heart of every man. To own them gives keen satisfaction, and to put them to work is for the amateur mechanic a fascinating and profitable pastime. In these days of high costs, no household can afford to be without a chest or cabinet well filled with tools.
PopularScience_19260301_0108_003_0098.xml
advertisement
73
73
[no value]
[no value]
Advertisements
[no value]
MILLERS FALLS COMPANY
Automatic Drill No. 445
MILLERS FALLS COMPANY
Ratchet Screw Driver No. 63
[no value]
[no value]
PopularScience_19260301_0108_003_0099.xml
article
74
74,94,96
[no value]
[no value]
How to Make Your Own Screens
A Woodworker Shows You an Easy Method of Putting Together the Frames—The Trick of Stretching Wire Cloth Tightly
[no value]
[no value]
EMANUEL E. ERICSON
SCREEN windows and doors for the home can be made easily by any one who possesses a few woodworking tools and a workbench. The most convenient way to obtain material for screen windows is to buy it from the lumber yard or mill already cut to the required size.
PopularScience_19260301_0108_003_0100.xml
advertisement
75
75
[no value]
[no value]
THE PECK, STOW & WILCOX CO.: PEXTO
[no value]
THE PECK, STOW & WILCOX CO.
PEXTO
[no value]
[no value]
PopularScience_19260301_0108_003_0101.xml
article
76
76,128,128A
Better Shop Methods
[no value]
Old Bill Talks on Cutting Fluids
Are They Really Lubricants or Just Cooling Agents?—Hints on How to Choose the Most Efficient Cutting Oils and Compounds
[no value]
[no value]
H. L. WHEELER
WHILE a cold March rain beat drearily against the shop’s sawtooth roof and coursed in silvery streams down the expansive windows, Old Bill’s men leisurely consumed their lunches and chatted about the prospects of getting their baseball team out for a little practice when the yard, which was now a morass from thaws and downpours, had dried sufficiently to allow them to spend their noon hours outside.
PopularScience_19260301_0108_003_0102.xml
advertisement
77
77
[no value]
[no value]
THE L. S. STARRETT CO.
[no value]
THE L. S. STARRETT CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0103.xml
article
78
78
The Home Workshop
[no value]
Few Tools Used to Carve Chest
[no value]
[no value]
[no value]
E. M. COOK
WOOD WORKERS of limited experience are timid about attempting wood carving. They think it requires long training and special aptitude. In reality, any one who wishes to do this kind of work need not hesitate a moment. The only skill required is a steady hand, together with patience and an eye for symmetrical design.
PopularScience_19260301_0108_003_0104.xml
article
78
78
The Home Workshop
[no value]
Elaborate Radio Cabinet Costs Less than $20
[no value]
[no value]
[no value]
[no value]
ELLIE CRASS, of Paducah, Ky., who built the upright radio cabinet illustrated, was encouraged to undertake this elaborate piece of work by an article that appeared in the Home Workshop Department in February, 1923. He writes: “To build an ideal radio cabinet is neither difficult nor expensive if the details shown in POPULAR SCIENCE MONTHLY’S Blueprint No. 16 or the article that appeared in the February, 1923, issue are followed.
PopularScience_19260301_0108_003_0105.xml
advertisement
78
78
[no value]
[no value]
NORTH BROS. MFG. CO.
[no value]
NORTH BROS. MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0106.xml
advertisement
79
79
[no value]
[no value]
HARLEY-DAVIDSON MOTOR COMPANY
[no value]
HARLEY-DAVIDSON MOTOR COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0107.xml
article
80
80,110,112,114
The Home Workshop
[no value]
A Ship Model of Your Own
How to Make the Masts, Sails, Guns, and Other Accessories—The Concluding Article
[no value]
[no value]
CAPTAIN E. ARMITAGE McCANN
OUR Barbary pirate ship model now is beginning to take shape. We have cut out and assembled the hull, deck, bulwarks, and stern-board as described in the February issue of POPULAR SCIENCE MONTHLY and are ready to get to work on the masts, sails, flags, and accessories—all the fascinating little details that will give our model real distinction and enduring value.
PopularScience_19260301_0108_003_0108.xml
advertisement
80
80
[no value]
[no value]
The Veeder Mfg. Co.
[no value]
The Veeder Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0109.xml
advertisement
81
81
[no value]
[no value]
PRENTISS VISE CO.
[no value]
PRENTISS VISE CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0110.xml
article
82
82,100
The Home Workshop
[no value]
How to Make a Wooden Seesaw that Children Cannot Break
[no value]
[no value]
[no value]
MORRIS A. HALL
MANY a man has labored long and diligently to make a toy or plaything for his child or children, only to have it practically destroyed or at least rendered useless within a few days. Children are so rough, consciously or unconsciously, that anything built for them and intended to last must be extraordinarily durable.
PopularScience_19260301_0108_003_0111.xml
advertisement
82
82
[no value]
[no value]
RUSSIA CEMENT COMPANY
[no value]
RUSSIA CEMENT COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0112.xml
advertisement
83
83
[no value]
[no value]
The David Maydole Hammer Co.
[no value]
The David Maydole Hammer Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0113.xml
article
84
84,116,117
The Home Workshop
[no value]
How to Fit and Hang a Door
Secrets of Applying the Hinges and a Mortise Lock
[no value]
[no value]
EDWIN M. LOVE
ONCE the methods involved are known, the fitting and hanging of an inside door is not a formidable task for the home mechanic. If the door to be hung is for a closet or other place where only one side is subject to scrutiny, the best side should be placed outward if possible; but, in general, it is best to sight along one side to note if there is any “spring” in the stiles (long side pieces), and if there is, place the concave side against the stops.
PopularScience_19260301_0108_003_0114.xml
advertisement
84
84
[no value]
[no value]
CORONA TYPEWRITER CO., Inc.
[no value]
CORONA TYPEWRITER CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0115.xml
advertisement
85
85
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0116.xml
article
86
86
The Home Workshop
[no value]
Details of Pirate Ship Model Shown in New Blueprint
[no value]
[no value]
[no value]
[no value]
IF YOU intend to build a duplicate of the colorful pirate ship model that Captain E. Armitage McCann, noted ship model expert, designed especially for POPULAR SCIENCE MONTHLY (see page 80), you will be able to save hours of work and insure the best results by obtaining Blueprints Nos. 44 and 45 in the list below.
PopularScience_19260301_0108_003_0117.xml
article
86
86
The Home Workshop
[no value]
Complete List of Blueprints
[no value]
[no value]
[no value]
[no value]
ANY ONE of the blueprints listed below can be obtained from POPULAR SCIENCE MONTHLY for 25 cents. The Editor will be glad to answer any specific questions relative to tools, material, or equipment. Blueprint Service Dept. Popular Science Monthly 250 Fourth Avenue, New York GENTLEMEN: Send me the blueprint, or blueprints, I have underlined below for which I inclose...............cents:
PopularScience_19260301_0108_003_0118.xml
advertisement
86
86
[no value]
[no value]
Allen-Bradley Company
[no value]
Allen-Bradley Company
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0119.xml
advertisement
87
87
[no value]
[no value]
BROWN & SHARPE MFG. CO.
[no value]
BROWN & SHARPE MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0120.xml
advertisement
88
88
[no value]
[no value]
THEO. AUDEL & CO.
[no value]
THEO. AUDEL & CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0121.xml
advertisement
89
89
[no value]
[no value]
GOODELL-PRATT COMPANY
[no value]
GOODELL-PRATT COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0122.xml
advertisement
90
90
[no value]
[no value]
AMERICAN TELEPHONE AND TELEGRAPH COMPANY AND ASSOCIATED COMPANIES: BELL SYSTEM
[no value]
AMERICAN TELEPHONE AND TELEGRAPH COMPANY AND ASSOCIATED COMPANIES
BELL SYSTEM
[no value]
[no value]
PopularScience_19260301_0108_003_0123.xml
advertisement
90
90
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0124.xml
advertisement
90
90
[no value]
[no value]
W. B. & J. E. Boice Dept.
[no value]
W. B. & J. E. Boice Dept.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0125.xml
advertisement
91
91
[no value]
[no value]
E. C. ATKINS & CO.
[no value]
E. C. ATKINS & CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0126.xml
advertisement
92
92
[no value]
[no value]
SIMONDS SAW AND STEEL CO.
[no value]
SIMONDS SAW AND STEEL CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0127.xml
advertisement
92
92
[no value]
[no value]
The Parks Ball Bearing Machine Co.
[no value]
The Parks Ball Bearing Machine Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0128.xml
advertisement
92
92
[no value]
[no value]
Mechanical Kitchen Service Co.
[no value]
Mechanical Kitchen Service Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0129.xml
advertisement
93
93
[no value]
[no value]
SARGENT & COMPANY: SARGENT PLANES
[no value]
SARGENT & COMPANY
SARGENT PLANES
[no value]
[no value]
PopularScience_19260301_0108_003_0130.xml
advertisement
94
94
[no value]
[no value]
C. G. CONN, Ltd.
[no value]
C. G. CONN, Ltd.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0131.xml
advertisement
95
95
[no value]
[no value]
THE UPSON COMPANY
[no value]
THE UPSON COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0132.xml
article
96
96
The Home Workshop
[no value]
How to Identify Door Keys without Looking at Them
[no value]
[no value]
[no value]
HAROLD SMITH
DOOR keys may be identified readily by touch alone, if marked in any of the ways i11ustrated. In A, a hole is drilled large enough to be felt easily. In B. a piece of fine wire is wrapped around the key and the ends are soldered. In C, one or two holes are drilled and rivets or small bolts are inserted.
PopularScience_19260301_0108_003_0133.xml
advertisement
96
96
[no value]
[no value]
BROWN MACHINERY CO.
[no value]
BROWN MACHINERY CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0134.xml
advertisement
96
96
[no value]
[no value]
BREMER-TULLY MANUFACTURING CO.
[no value]
BREMER-TULLY MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0135.xml
advertisement
97
97
[no value]
[no value]
FEDERAL TELEGRAPH COMPANY
[no value]
FEDERAL TELEGRAPH COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0136.xml
article
98
98
The Home Workshop
[no value]
Solving the Famous Block Puzzle in Sixteen Ways
[no value]
[no value]
[no value]
ARTHUR L. SMITH
SO COMMON is the block puzzle that nearly everybody has tried at some time or other to put one together. It may be thought that all block puzzles are alike. The truth is that they may be of almost endless variety. The whittler may design new ones at will.
PopularScience_19260301_0108_003_0137.xml
article
98
98
The Home Workshop
[no value]
Walnut End Table with Handmade Spiral Legs
[no value]
[no value]
[no value]
R. E. DEERING
IN MAKING by hand the legs of the walnut end table or console table illustrated, I used a method that has been previously described in POPULAR SCIENCE MONTHLY. The top of the table was cut from a piece of walnut 1 by 10 by 18 in. The front corners were cut off as shown and the top planed, scraped, and sanded.
PopularScience_19260301_0108_003_0138.xml
advertisement
98
98
[no value]
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0139.xml
advertisement
98
98
[no value]
[no value]
RANDOLPH RADIO CORP.
[no value]
RANDOLPH RADIO CORP.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0140.xml
advertisement
99
99
[no value]
[no value]
SEARS, ROEBUCK AND CO.
[no value]
SEARS, ROEBUCK AND CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0141.xml
article
100
100
The Home Workshop
[no value]
Fitting Irregular Joints
[no value]
[no value]
[no value]
W. J. E.
THE amateur carpenter who must fit a board or framework against an irregular surface, can make a templet from a strip of sheet lead or common wire solder. Lightly hammer the soft metal against the irregular surface, bend the ends at right angles as shown, and then use it to mark the mating part.
PopularScience_19260301_0108_003_0142.xml
advertisement
100
100
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0143.xml
advertisement
101
101
[no value]
[no value]
THOMAS NELSON & SONS
[no value]
THOMAS NELSON & SONS
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0144.xml
advertisement
102
102
[no value]
[no value]
THE RUDOLPH WURLITZER CO.
[no value]
THE RUDOLPH WURLITZER CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0145.xml
advertisement
103
103
[no value]
[no value]
NATIONAL CARBON CO., INC.
[no value]
NATIONAL CARBON CO., INC.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0146.xml
article
104
104
The Home Workshop
[no value]
Holder for Pens and Pencils
[no value]
[no value]
[no value]
DAVID J. MORRIS
THIS little flower holder or “bud vase” serves as a handy pen and pencil holder for a desk or drafting table. The holders may be obtained in various colors and shapes, ranging in price from 10 cents up. What they are really for is to hold the stems of cut FLOWERS.
PopularScience_19260301_0108_003_0147.xml
advertisement
104
104
[no value]
[no value]
GENERAL ELECTRIC
[no value]
GENERAL ELECTRIC
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0148.xml
advertisement
104
104
[no value]
[no value]
Carter Radio Co.
[no value]
Carter Radio Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0149.xml
advertisement
104
104
[no value]
[no value]
THE PORTER CHEMICAL CO.
[no value]
THE PORTER CHEMICAL CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0150.xml
advertisement
105
105
[no value]
[no value]
BAKELITE CORPORATION
[no value]
BAKELITE CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0151.xml
article
106
106
[no value]
[no value]
Home Workshop Chemistry
Simple Formulas that Will Save Time and Money
[no value]
[no value]
[no value]
SMALL as it is, the beetle family known as Ptinidae harbors many destructive insects. One of them is especially damaging to all kinds of furniture as it has a predilection for dry woodwork. This is a species of Anobium, the death-watch beetle, a number of forms of which are known.
PopularScience_19260301_0108_003_0152.xml
advertisement
106
106
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0153.xml
advertisement
107
107
[no value]
[no value]
THE CUTLER-HAMMER MFG. CO.
[no value]
THE CUTLER-HAMMER MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0154.xml
article
108
108
The Home Workshop
[no value]
Tying an Underwriters’ Knot in a Lamp Cord
[no value]
[no value]
[no value]
GEORGE A. WILLOUGHBY
ONE of my neighbors was in his cellar workshop putting the finishing touches on a little lamp stand for his reading table when be received a peremptory summons to the living-room. “Look, dad!” his son exclaimed. “I just pulled a little on this extension cord and the wires came right out of the attachment plug!”
PopularScience_19260301_0108_003_0155.xml
advertisement
108
108
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0156.xml
advertisement
109
109
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0157.xml
advertisement
110
110
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0158.xml
advertisement
111
111
[no value]
[no value]
CLEMSON BROS., INC.: STAR HACK SAW BLADES
[no value]
CLEMSON BROS., INC.
STAR HACK SAW BLADES
[no value]
[no value]
PopularScience_19260301_0108_003_0159.xml
advertisement
112
112
[no value]
[no value]
Northwestern Electric Co.
[no value]
Northwestern Electric Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0160.xml
advertisement
112
112
[no value]
[no value]
RUTLAND FIRE CLAY CO.
[no value]
RUTLAND FIRE CLAY CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0161.xml
advertisement
112
112
[no value]
[no value]
CHICAGO SOLDER COMPANY
[no value]
CHICAGO SOLDER COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0162.xml
advertisement
112
112
[no value]
[no value]
LOFTIS BROS. & CO.
[no value]
LOFTIS BROS. & CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0163.xml
article
113
113
The Home Workshop
[no value]
Homemade Play Car Has a Curious Bucking Motion
[no value]
[no value]
[no value]
JOHN SWINLAND
MY BOY Horace had broken his auto. His ever-recurring importunities to “make something out of it” suggested to me one day that, indeed, some kind of vehicle could be constructed from the wreckage. From then on for a few weeks most of my spare time was spent in the basement of my home in Duluth, and the evening’s work often became so absorbing that it carried me far into the night.
PopularScience_19260301_0108_003_0164.xml
advertisement
113
113
[no value]
[no value]
STORM-O-GUIDE CLUB
[no value]
STORM-O-GUIDE CLUB
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0165.xml
article
114
114
The Home Workshop
[no value]
Gage for Planing Edges
[no value]
[no value]
[no value]
HENRY JERVEY
PLANING long edges perfectly straight with a small plane, such as a common block plane, may be made easier for the beginner in woodwork by the use of a gage or templet. A wood or metal straightedge ⅛ or 3/16 in. thick is screwed to the face of a strip of wood so as to form a shoulder. This guides the bottom of the small plane without damaging the cutting IRON.
PopularScience_19260301_0108_003_0166.xml
advertisement
114
114
[no value]
[no value]
THE AMPLION CORPORATION OF AMERICA
[no value]
THE AMPLION CORPORATION OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0167.xml
advertisement
114
114
[no value]
[no value]
Young Typewriter Co.
[no value]
Young Typewriter Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0168.xml
advertisement
114
114
[no value]
[no value]
Smooth-On Mfg. Co.
[no value]
Smooth-On Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0169.xml
article
115
115
The Home Workshop
[no value]
"Storm the Castle" Is an Easily Made Game for Children
[no value]
[no value]
[no value]
DONALD W. CLARK
VISIONS of knights in arm or and many thrilling storybook tales are conjured up by this realistic battle game, “Storming the Castle.” It is played on a table with ammunition shot from pea blowers. Each blower is set up in the center of a castle made as illustrated.
PopularScience_19260301_0108_003_0170.xml
article
115
115
The Home Workshop
[no value]
Combined Gas and Coal Stove
[no value]
[no value]
[no value]
DR. H. J. BLAKE
TO FASTEN a gas plate to an ordinary coal range, obtain two lengths of ¼-in. pipe or ⅜-in. rods 2 ft. long, two ¾-in. pipe straps, and eight l-in. long stove bolts. Remove the extension shelf on the range, take the legs off the gas plate, and attach the gas plate with pipe straps where the shelf has been removed.
PopularScience_19260301_0108_003_0171.xml
advertisement
115
115
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0172.xml
advertisement
116
116
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0173.xml
article
117
117
The Home Workshop
[no value]
Lining a Stove Firebox
[no value]
[no value]
[no value]
F.W.W
AS A lining for fireboxes in stoves, I have found three parts of common dry clay thoroughly pulverized and mixed with one part of Portland cement to be excellent. The powder should be made into a thick paste by adding water.
PopularScience_19260301_0108_003_0174.xml
advertisement
117
117
[no value]
[no value]
CHAS. FRESHMAN CO., INC.
[no value]
CHAS. FRESHMAN CO., INC.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0175.xml
article
118
118,119,120
The Home Workshop
[no value]
Overhauling a Ford Rear Axle
[no value]
[no value]
[no value]
RAY F. KUNS
HOW to block a Ford car when it is desired to “pull” the rear axle is indicated in Fig. 1. By placing the blocks under the runningboard, the axle may be removed and replaced with comparative ease. Unless the car is blocked unusually high, it will be necessary to remove at least one of the wheels.
PopularScience_19260301_0108_003_0176.xml
advertisement
118
118
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0177.xml
advertisement
119
119
[no value]
[no value]
THE POMPEIAN CO.
[no value]
THE POMPEIAN CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0178.xml
article
120
120
The Home Workshop
[no value]
How to Repair Broken Furnace Grates in an Emergency
[no value]
[no value]
[no value]
F. W. WILDER
IN AN emergency a broken furnace grate often can be repaired by wiring three iron strips along the depressions as shown. The strips should be not less than ⅛ by 1 in. in cross section and as long as the grate. The wire should be 1/16 in. in diameter or a little larger.
PopularScience_19260301_0108_003_0179.xml
advertisement
120
120
[no value]
[no value]
The Sterling Mfg. Company
[no value]
The Sterling Mfg. Company
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0180.xml
advertisement
120
120
[no value]
[no value]
McGRAW-HILL BOOk CO., Inc.
[no value]
McGRAW-HILL BOOk CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0181.xml
advertisement
120
120
[no value]
[no value]
The Barbasol Co.
[no value]
The Barbasol Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0182.xml
article
121
121,122,123
[no value]
[no value]
The Shipshape Home
How to Lay Roll Roofing
Reinforcing Furnace Joints
Chain Supports a Paint Pot
Repairing Window-Shades
Fastening Chair Springs
Filler for Large Cracks
[no value]
[no value]
CHARLES W. HUBERTZ
EUGENE L. GIESE
RICHARD C. TARR
F. J. WILHELM
BECAUSE of it’s cheapness and apparent ease of application, composition or “paper” roofing sold in rolls is used frequently by home owners, especially for porch roofs, garages, outbuildings and repair work of various kinds, and sometimes on the main house roof.
PopularScience_19260301_0108_003_0183.xml
advertisement
121
121
[no value]
[no value]
THORDARSON ELECTRIC MANUFACTURING CO.
[no value]
THORDARSON ELECTRIC MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0184.xml
advertisement
121
121
[no value]
[no value]
RANDOLPH RADIO CORP.
[no value]
RANDOLPH RADIO CORP.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0185.xml
advertisement
121
121
[no value]
[no value]
H. GERSTNER & SONS
[no value]
H. GERSTNER & SONS
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0186.xml
advertisement
121
121
[no value]
[no value]
MAHER & GROSH CO.
[no value]
MAHER & GROSH CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0187.xml
advertisement
122
122
[no value]
[no value]
CONDENSER AND RADIO CORPORATION
[no value]
CONDENSER AND RADIO CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0188.xml
advertisement
122
122
[no value]
[no value]
WITTE ENGINE WORKS
[no value]
WITTE ENGINE WORKS
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0189.xml
advertisement
122
122
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0190.xml
advertisement
123
123
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0191.xml
advertisement
123
123
[no value]
[no value]
THE GEROLD COMPANY
[no value]
THE GEROLD COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0192.xml
advertisement
123
123
[no value]
[no value]
RANDOLPH RADIO CORP.
[no value]
RANDOLPH RADIO CORP.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0193.xml
advertisement
123
123
[no value]
[no value]
F. SPORS & CO.
[no value]
F. SPORS & CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0194.xml
article
124
124
Better Shop Methods
[no value]
Old Bill Says—
[no value]
[no value]
[no value]
MR. “I DIDN’T THINK” has no business in a machine shop. We all know that makeshifts are to be avoided whenever possible, but it is a poor mechanic who cannot devise one in an emergency or adapt himself to unusual circumstances. Knowing the right speeds and feeds for your cutting tools is just as important in its way as knowing how to grind them.
PopularScience_19260301_0108_003_0195.xml
article
124
124
Better Shop Methods
[no value]
improvised Threading Die
[no value]
[no value]
[no value]
FRANK N. COAKLEY
WHEN an erector was faced with the necessity of cutting longer threads on some foundation bolts already in place for an air compressor and could find no die of the proper size at hand, he ingeniously made the tool illustrated. It consists of a nut to give the proper lead, a flat bar of steel with a setscrew to hold a threading tool at one side of the nut, and a U-bolt for fastening the bar to the nut.
PopularScience_19260301_0108_003_0196.xml
advertisement
124
124
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0197.xml
article
125
125
Better Shop Methods
[no value]
Swaging a Solid Key on Cold Rolled Steel Shafts
[no value]
[no value]
[no value]
[no value]
A NOVEL method of swaging a key on a small shaft is illustrated below. This idea is suitable for certain classes of work in which the key is not required to have great strength, as in the mechanism of typewriters, adding machines, and other office appliances.
PopularScience_19260301_0108_003_0198.xml
article
125
125
Better Shop Methods
[no value]
Cardboard Stand Prevents Ink Bottle from Tipping
[no value]
[no value]
[no value]
[no value]
ONLY a piece of cardboard 10 or 12 in. square and a rubber band are needed to make a safety stand for the draftsman’s ink bottle. Lay out a circle in the center of the cardboard the same diameter as the ink bottle. Then cut 10 equally spaced radial slits and bend the points upward.
PopularScience_19260301_0108_003_0199.xml
advertisement
125
125
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0200.xml
advertisement
125
125
[no value]
[no value]
ACME PANTS MATCHERS
[no value]
ACME PANTS MATCHERS
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0201.xml
advertisement
125
125
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0202.xml
advertisement
125
125
[no value]
[no value]
BABY CALCULATOR SALES CO.
[no value]
BABY CALCULATOR SALES CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0203.xml
article
126
126
Better Shop Methods
[no value]
Lamp and Fuse Carrier for Shops and Large Buildings
[no value]
[no value]
[no value]
JAMES F. MAGEE
FOR large buildings the lamp and fuse carrier illustrated saves time for whoever is charged with the task of keeping the electric lights in order. The actual cost of making it was $1.10, and that was for the box corners and leather handle. The wood came from a packing ease.
PopularScience_19260301_0108_003_0204.xml
article
126
126
Better Shop Methods
[no value]
General Utility Shop Clamps Made Quickly by Welding
[no value]
[no value]
[no value]
A. G. WIKOFF
THE new style of clamp illustrated is welded from pieces of scrap boiler tubing. It is strong enough to stand any strains to which it may be put. In making it, a 1-in. wide ring is cut from 2-in. boiler tubing and is flattened on the sides to an oval shape.
PopularScience_19260301_0108_003_0205.xml
article
126
126
Better Shop Methods
[no value]
Selecting Babbitt Metal
[no value]
[no value]
[no value]
[no value]
BABBITT metal in the better grades is composed of tin, antimony, and copper in about the proportion of 88, 10, and 2 respectively, with no lead. The cheap grades contain only a small percentage of tin and antimony and rarely any copper; indeed, the bulk of the poorer varieties is chiefly lead.
PopularScience_19260301_0108_003_0206.xml
advertisement
126
126
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0207.xml
article
127
127
Better Shop Methods
[no value]
Drilling in the Lathe without Using a Centering Tool
[no value]
[no value]
[no value]
W. H.
SO SIMPLE a thing as drilling a hole in a piece of work held in a lathe chuck may be made even easier if the method illustrated is used. It is not even necessary to use a centering tool. The drill is held in the tailstock spindle and advanced so that it almost touches the work.
PopularScience_19260301_0108_003_0208.xml
article
127
127
Better Shop Methods
[no value]
Forming Small Eyes by Hand
[no value]
[no value]
[no value]
M.E.
THE necessity for forming an eye on a number of rods so that the centers of the eye and rod would be in line led to the development of the device illustrated. Two holes were drilled in a small block of steel; these were a driving fit for steel pins, one the size of the required eye, the other a little larger. The distance between was the thickness of the wire stock.
PopularScience_19260301_0108_003_0209.xml
advertisement
127
127
[no value]
[no value]
SHIPMAN-WARD MFG. CO.
[no value]
SHIPMAN-WARD MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0210.xml
advertisement
127
127
[no value]
[no value]
WORLD BATTERY COMPANY
[no value]
WORLD BATTERY COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0211.xml
advertisement
127
127
[no value]
[no value]
Buffalo Jewelry Mfg. Co.
[no value]
Buffalo Jewelry Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0212.xml
advertisement
128
128
[no value]
[no value]
Rathbun Mfg. Co., Inc.
[no value]
Rathbun Mfg. Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0213.xml
advertisement
128
128
[no value]
[no value]
The Pelman Institute of America
[no value]
The Pelman Institute of America
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0214.xml
advertisement
128A
128A
[no value]
[no value]
American Business Builders, Inc.
[no value]
American Business Builders, Inc.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0215.xml
advertisement
128A
128A
[no value]
[no value]
Advertisement: POPULAR SCIENCE MONTHLY
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
PopularScience_19260301_0108_003_0216.xml
article
128B
128B
Better Shop Methods
[no value]
How to Make a Lapping Plate with a Surface of Lead
[no value]
[no value]
[no value]
[no value]
LAPPING plates with a leaden surface are preferred for certain kinds of tool work. A plate of this type may be made easily and will not cost much. If the plate is to be cast specially for purpose, the pattern should provide for four or more dovetail grooves across the upper surface, and the under surface be cored to reduce weight.
PopularScience_19260301_0108_003_0217.xml
article
128B
128B
Better Shop Methods
[no value]
Time Saving Toolmaker’s Strap
[no value]
[no value]
[no value]
[no value]
STRAPS or clamps made as shown will find many uses for clamping small tool work to face-plates and machine tables. An elongated slot is provided in each strap for the clamping bolt, and a setscrew at the back eliminates the use of blocking. A regular T-head bolt may be used or one having a T-slot nut.
PopularScience_19260301_0108_003_0218.xml
article
128B
128B
Better Shop Methods
[no value]
Ice Used in New Method of Bending Metal Tubes
[no value]
[no value]
[no value]
ERNEST WELLECK
IN THE shop as well as in chemical and physical laboratories it is sometimes necessary to bend small-caliber metal tubes without causing them to flatten at the bends. The common practice is to fill the tube before bending with molten resin, sulphur, paraffin or some metal alloy of low melting point.
PopularScience_19260301_0108_003_0219.xml
advertisement
128B
128B
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0220.xml
article
128C
128C
Better Shop Methods
[no value]
Adjustable Stand for Holding Shop Magnifying Glass
[no value]
[no value]
[no value]
H. L.
IN THE tool room a large magnifying glass has many uses and even for laying out ordinary work at the bench it is to be preferred to a smaller magnifier. The only drawback is the possibility that the expensive glass may be broken through careless handling.
PopularScience_19260301_0108_003_0221.xml
article
128C
128C
Better Shop Methods
[no value]
How to Set Up a Lathe for Cutting Racks Accurately
[no value]
[no value]
[no value]
CHARLES KUGLER
WHEN a shop is not equipped with milling machine suitable for cutting racks, it is possible to set up a lathe as illustrated for doing the work. The rack is screwed to a piece of flat steel, which is packed up to the height that will make it possible to cut the teeth the proper depth. The cutter is held on a long arbor. Spacing is done by means of a gage the length of the pitch. The gage is used between a clamp on the bed of the lathe and a pin set in the end of the carriage.
PopularScience_19260301_0108_003_0222.xml
article
128C
128C
Better Shop Methods
[no value]
A Novel Slitter for Belts
[no value]
[no value]
[no value]
EDWIN G. BAKER
SLITTING a piece of belting into two or more pieces can be done quickly and accurately with the aid of the simple guide illustrated. All that is needed are three pieces of wood ¼ by 2 by 10 or 12 in., a dozen nails and a sharp pocket-knife. Nail the pieces together and insert the knife into a slot in the upper one.
PopularScience_19260301_0108_003_0223.xml
advertisement
128C
128C
[no value]
[no value]
Santa Fe Watch Co.
[no value]
Santa Fe Watch Co.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0224.xml
advertisement
128C
128C
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0225.xml
advertisement
128C
128C
[no value]
[no value]
ARKOGRAF PEN CO.
[no value]
ARKOGRAF PEN CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0226.xml
advertisement
128C
128C
[no value]
[no value]
HARDIN-LAVIN COMPANY
[no value]
HARDIN-LAVIN COMPANY
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0227.xml
article
128D
128D
Better Shop Methods
[no value]
High Speed Steel Inserts for Lathe Tail Centers
[no value]
[no value]
[no value]
B. R. S.
IN TURNING pieces of small diameter, especially if they are of alloyed steels, trouble ofttimes is experienced, where high speed is required to obtain a good finish, from the burning or galling of tail centers. An inexpensive method is illustrated that will overcome this trouble in most cases.
PopularScience_19260301_0108_003_0228.xml
article
128D
128D
Better Shop Methods
[no value]
Finishing Surfaces of Thin Machine Parts
[no value]
[no value]
[no value]
S. W. BROWN
THIN work often cannot be clamped hard enough in a vise to hold it for finishing its surfaces without bending or springing it. In such cases good results may be obtained by clamping a wooden block in the vise and mounting the work upon it with several wire brads, as shown.
PopularScience_19260301_0108_003_0229.xml
advertisement
128D
128D
[no value]
[no value]
DAVID B. CLARKSON CO.
[no value]
DAVID B. CLARKSON CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0230.xml
advertisement
128D
128D
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0231.xml
advertisement
128D
128D
[no value]
[no value]
FRANKLIN INSTITUTE
[no value]
FRANKLIN INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0232.xml
advertisement
128E
128E
[no value]
[no value]
JOHNSON SMITH & CO.
[no value]
JOHNSON SMITH & CO.
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0233.xml
advertisement
128F
128F,128G,128H,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158
[no value]
[no value]
Money Making Opportunities for "Popular Science" Readers
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0234.xml
advertisement
159
159
[no value]
[no value]
RANDOLPH RADIO CORPORATION
[no value]
RANDOLPH RADIO CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0235.xml
advertisement
160
160
[no value]
[no value]
RADIO CORPORATION OF AMERICA
[no value]
RADIO CORPORATION OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0236.xml
advertisement
161
161
[no value]
[no value]
LIGGETT & MYERS TOBACOO Co.: CHESTERFIELD
[no value]
LIGGETT & MYERS TOBACOO Co.
CHESTERFIELD
[no value]
[no value]
PopularScience_19260301_0108_003_0237.xml
advertisement
162
162
[no value]
[no value]
R. J. Reynolds Tobacco Company
[no value]
R. J. Reynolds Tobacco Company
[no value]
[no value]
[no value]
PopularScience_19260301_0108_003_0238.xml