Issue: 19231001

Monday, October 1, 1923
OCTOMBER 1923
4
True
103
Wednesday, December 31, 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_19231001_0103_004_0001.xml
advertisement
0_2
0_2
[no value]
[no value]
RADIO CORPORATION OF AMERICA: Radiola Grand
[no value]
RADIO CORPORATION OF AMERICA
Radiola Grand
[no value]
[no value]
PopularScience_19231001_0103_004_0002.xml
advertisement
0_3
0_3
[no value]
[no value]
Cooke Auto School
[no value]
Cooke Auto School
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0003.xml
advertisement
0_4
0_4
[no value]
[no value]
Advertisements
[no value]
Victor Talking Machine Company
Victrola No. 405
Victor Talking Machine Company
Victrola No. 400
[no value]
[no value]
PopularScience_19231001_0103_004_0004.xml
advertisement
1
1
[no value]
[no value]
Little Leather Library Corporation
[no value]
Little Leather Library Corporation
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0005.xml
article
2
2
[no value]
[no value]
Editorial
Most Wonderfully Illustrated Magazine in the World
[no value]
[no value]
[no value]
SCIENCE and thought are inseparable twins. Each new discovery, each new invention, has the magic power of thought behind it. But an even more wonderful and more potent force is forethought. Forethought drives science forward to new achievements.
PopularScience_19231001_0103_004_0006.xml
advertisement
3
3
[no value]
[no value]
National Salesmen’s Training Ass’n.
[no value]
National Salesmen’s Training Ass’n.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0007.xml
advertisement
4
4,6,8,10,12,14,16,18,20
[no value]
[no value]
Money Making Opportunities
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0008.xml
advertisement
5
5
[no value]
[no value]
CHICAGO ENGINEERING WORKS
[no value]
CHICAGO ENGINEERING WORKS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0009.xml
advertisement
6
6
[no value]
[no value]
THEO. AUDEL & CO.
[no value]
THEO. AUDEL & CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0010.xml
advertisement
7
7
[no value]
[no value]
Nelson Doubleday, Inc.
[no value]
Nelson Doubleday, Inc.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0011.xml
advertisement
8
8
[no value]
[no value]
COYNE ELECTRICAL SCHOOL
[no value]
COYNE ELECTRICAL SCHOOL
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0012.xml
advertisement
9
9
[no value]
[no value]
LaSalle Extension University
[no value]
LaSalle Extension University
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0013.xml
advertisement
10
10
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0014.xml
advertisement
11
11
[no value]
[no value]
S. & H. Electrical Works
[no value]
S. & H. Electrical Works
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0015.xml
advertisement
12
12
[no value]
[no value]
COYNE SCHOOL OF DRAFTING
[no value]
COYNE SCHOOL OF DRAFTING
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0016.xml
advertisement
12
12
[no value]
[no value]
SCHNEIDER SCHOOL OF MUSIC
[no value]
SCHNEIDER SCHOOL OF MUSIC
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0017.xml
advertisement
12
12
[no value]
[no value]
WORLD PROGRESS PUB. CO., INC.
[no value]
WORLD PROGRESS PUB. CO., INC.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0018.xml
advertisement
12
12
[no value]
[no value]
AMERICAN INSTITUTE OF HUMOR
[no value]
AMERICAN INSTITUTE OF HUMOR
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0019.xml
advertisement
13
13
[no value]
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0020.xml
advertisement
14
14
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0021.xml
advertisement
15
15
[no value]
[no value]
American School
[no value]
American School
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0022.xml
advertisement
16
16
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0023.xml
advertisement
17
17
[no value]
[no value]
BUREAU of INVENTIVE SCIENCE
[no value]
BUREAU of INVENTIVE SCIENCE
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0024.xml
advertisement
18
18
[no value]
[no value]
WASHINGTON SCHOOL OF CARTOONING
[no value]
WASHINGTON SCHOOL OF CARTOONING
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0025.xml
advertisement
18
18
[no value]
[no value]
G. & C. MERRIAM COMPANY
[no value]
G. & C. MERRIAM COMPANY
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0026.xml
advertisement
19
19
[no value]
[no value]
NIAGARA SCHOOL OF MUSIC
[no value]
NIAGARA SCHOOL OF MUSIC
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0027.xml
advertisement
20
20
[no value]
[no value]
Chief Draftsman Engineers Equipment Co.
[no value]
Chief Draftsman Engineers Equipment Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0028.xml
advertisement
20
20
[no value]
[no value]
Standard Business Training Institute
[no value]
Standard Business Training Institute
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0029.xml
advertisement
21
21
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0030.xml
advertisement
22
22
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0031.xml
advertisement
23
23
[no value]
[no value]
ALLIED MERKE INSTITUTES, Inc.
[no value]
ALLIED MERKE INSTITUTES, Inc.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0032.xml
advertisement
24
24
[no value]
[no value]
GREER COLLEGE of Automotive Engineering
[no value]
GREER COLLEGE of Automotive Engineering
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0033.xml
article
25
25
[no value]
[no value]
THEY SAY
Brief Bits of Timely Comment on the Sciences of the Hour
[no value]
[no value]
[no value]
PROF. A. M. LOW, the “Edison of England,” whose wonderful invention for photographing noise has been used successfully in the London underground railways. He is shown above watching the motor races at Brooklands, Eng., where the exhaust noises of the competing cars were measured by his device: “European scientists are on the eve of announcing one of the greatest discoveries of the age—flexible glass.
PopularScience_19231001_0103_004_0034.xml
advertisement
26
26
[no value]
[no value]
A. H. GREBE & COMPANY, Inc.: Type CR-12
[no value]
A. H. GREBE & COMPANY, Inc.
Type CR-12
[no value]
[no value]
PopularScience_19231001_0103_004_0035.xml
masthead
27
27
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0036.xml
article
27
27,28
[no value]
[no value]
What Static Sparks Cost Us
Science Teaches Motorists How to Protect Themselves Against a Danger in Fuel that Is More Deadly than Dynamite
Many Fires
What Is Static?
Why Gasoline Explodes
Some Safeguards
Where Peril Lurks in a Tiny Spark
Static Responsible for Many Fires
Some Safeguards
[no value]
[no value]
Raymond J. Brown
THROUGH the deaths of three motorists, all occurring within a week recently in widely separated parts of the country, attention of automotive engineers has been focused upon an odd but deadly peril in the gasoline tanks of automobiles. It is the danger of explosion and fire from the ignition of gasoline fumes by static electricity.
PopularScience_19231001_0103_004_0037.xml
article
29
29
[no value]
[no value]
High-Speed Movies—5000 a Second
Marvelous New Camera Watches a Hammer Smash a Vacuum Bulb
The Scientific Detective
[no value]
[no value]
[no value]
SIMULTANEOUSLY from the United States and England has come announcement of the invention of two revolutionary types of “slow motion” moving-picture cameras, capable respectively of making 3200 and 5000 exposures a second. This permits the photographing in elaborate detail of actions the unaided eye cannot discern.
PopularScience_19231001_0103_004_0038.xml
article
30
30,31
[no value]
[no value]
Sky Leviathans of Tomorrow
Larger Dirigibles to Be Built
A Dreadnaught of the Clouds
We Must Conserve Helium Supply
[no value]
[no value]
Rear-Admiral William A. Moffett
SHIPS of the sea have built empires, altered the destinies of nations, and exerted a profound influence on history through uncounted centuries. With the dawn of the twentieth century, ships of the air have come as a new challenger of time and space, and their influence upon the trend of world events is today one of the most potent factors in world progress and development.
PopularScience_19231001_0103_004_0039.xml
article
32
32
[no value]
[no value]
New Combination Tool Is a Mechanical Friend
[no value]
[no value]
[no value]
[no value]
A COMBINATION tool, of remarkable utility, consists simply of a steel bar hooked at one end, with a small hammer - head projection. It serves either as a nail puller, hammer, chisel, or crowbar.
PopularScience_19231001_0103_004_0040.xml
article
32
32
[no value]
[no value]
Five-Ounce Pull Lifts Ton with New Chain Hoist
[no value]
[no value]
[no value]
[no value]
THE motor-driven chain hoist shown below will lift a ton at a five-ounce pull from the operator, whereas previous hoists have required a 90-pound pull. The motor is controlled by a switch in the handle held by the operator. Turning on the current lifts the load.
PopularScience_19231001_0103_004_0041.xml
article
32
32
[no value]
[no value]
Inexpensive Dry Cleaning with Diminutive Plant
[no value]
[no value]
[no value]
[no value]
A MACHINE that makes possible a dry cleaning service without the expense of skilled labor and the employment of complicated machinery has been designed for use by tailoring shops, dry-goods houses, hotels, and cleaning shops. The large brush shown in the center of the table revolves rapidly, loosening the dust from the fabric, while a strong draft draws the dust into a centrifugal type dust collector.
PopularScience_19231001_0103_004_0042.xml
article
32
32
[no value]
[no value]
Time Saved, Colds Avoided by This Built-In Mailbox
[no value]
[no value]
[no value]
[no value]
AN INGENIOUS accessory for the home is a newly invented, built-in mailbox. The box is so arranged that a letter, dropped into the slot on the outside, can be removed through a small door within the house. This will eliminate the necessity of going out of doors when the postman leaves the mail, averting the possibility of contracting colds in inclement weather.
PopularScience_19231001_0103_004_0043.xml
article
32
32
[no value]
[no value]
How Campers May Purify Unsafe Drinking Water
[no value]
[no value]
[no value]
[no value]
CAMPERS in districts where streams may be polluted will be relieved to learn that the Army Medical School at Washington, D. C., has evolved a handy method of purifying suspected water. One or two drops of tincture of iodine will vanquish all the germs in a quart of unsafe water within from 20 to 30 minutes, according to this authority.
PopularScience_19231001_0103_004_0044.xml
article
32
32
[no value]
[no value]
“Permanent” Light Fixtures Are Easily Detachable
[no value]
[no value]
[no value]
[no value]
A NEW type of wall and ceiling socket for electric fixtures facilitates the removal, for cleaning, replacing, or interchanging, of those fixtures that we now term "permanent." The socket consists of two parts, one fastened firmly to the wall or ceiling and the other to the fixture.
PopularScience_19231001_0103_004_0045.xml
article
32
32
[no value]
[no value]
Automatic Pressure Kettle
[no value]
[no value]
[no value]
[no value]
MADE of enameled steel, a new pressure kettle that seals itself when the pressure within rises has been added to the list of new labor-saving utensils. A stack of pans is held in a rack that fits in the kettle. The cover fits tightly and is provided with a pressure gage and a safety valve.
PopularScience_19231001_0103_004_0046.xml
article
33
33
[no value]
[no value]
Folding Camp Stove Burns Gasoline from Car
[no value]
[no value]
[no value]
[no value]
HOME cooking comforts are provided the camper or motor tourist by the folding camp stove shown above. It burns gasoline, permitting the use of fuel extracted from the tank of the motor car. A windshield, warming shelf, detachable pressed steel legs, and a two-burner iron grate are features of the stove, which may be folded to 4½ by 10½ by 19 inches for carrying.
PopularScience_19231001_0103_004_0047.xml
article
33
33
[no value]
[no value]
Tiny Microscope Magnifies Object 225 Times
[no value]
[no value]
[no value]
[no value]
A SMALL pocket microscope, only four inches long and weighing but 15 ounces, recently perfected, is capable of magnifying an object 225 times its actualsize. The instrument consists of a cylindrical base and stand into which two other cylinders telescope.
PopularScience_19231001_0103_004_0048.xml
article
33
33
[no value]
[no value]
Rake-Mower Trims Edges of Lawn
[no value]
[no value]
[no value]
[no value]
PERSONS who mow their own lawns usually are compelled to use grass shears to supplement the work of their mowers in trimming the growth at the sides of buildings and fences or around trees or flower beds. Now a Michigan manufacturer has perfected an ingenious small mower, no larger than a rake, that will cut grass any place where a rake might be thrust.
PopularScience_19231001_0103_004_0049.xml
article
33
33
[no value]
[no value]
Supporting Small Objects before the Camera
[no value]
[no value]
[no value]
[no value]
GRAY backgrounds often are desirable in photographing small objects in the studio, but almost invariably the photographer resorts to the white background to obviate the many difficulties otherwise encountered. If the object is placed on a clear glass with the gray card underneath, he often gets reflections across the plate.
PopularScience_19231001_0103_004_0050.xml
article
33
33
[no value]
[no value]
Wall Holder for Telephone Has Coin Box and Pad
[no value]
[no value]
[no value]
[no value]
THIS handy wall telephone holder, carries a little coin container to remind neighbors that telephone service costs money. A conveniently arranged pad may be used for notes or a ready reference directory of numbers.
PopularScience_19231001_0103_004_0051.xml
article
34
34
[no value]
[no value]
INTERESTING PEOPLE and Their Hobbies
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0052.xml
article
35
35
[no value]
[no value]
Oilwell Fire Snuffed like Candle
Ingenious Cap Smothers Fatal Texas Blaze
Rubber Bumper Absorbs Jolts in Collision
[no value]
[no value]
[no value]
MODERN invention rarely has been put to a more dramatic use than it was a few weeks ago, when a devastating fire, which had killed 13 men and had consumed more than $20,000 worth of oil a day for three days, was extinguished by a giant candle snuffer devised for the emergency by an oilwell foreman.
PopularScience_19231001_0103_004_0053.xml
article
36
36,37
[no value]
[no value]
Are You Using All of Your Brains?
An Article on Memory—and How to Improve It
Eight Rules for Memory
A Memory Feat
Is Genius “Accumulated Memory”?
An Exercise
Memory Never Relinquishes a Fact
[no value]
[no value]
James J. Walsh
A FEW weeks ago the New York newspapers, in reporting a trial in which a noted criminal lawyer appeared as counsel for the defense, commented on the remarkable feats of memory which he performed many times during the closing days of the trial.
PopularScience_19231001_0103_004_0054.xml
article
38
38
[no value]
[no value]
Baby’s Canvas Bathtub Lightens Work
[no value]
[no value]
[no value]
[no value]
UNUSUALLY useful for the modern mother is this combination canvas bathtub and dressing table for the baby. It is designed to fit within the ordinary bathtub, and is supported by the sides of the tub. Not only is it sanitary for the baby because of a continuous flow of clean water, but it provides comfort for both mother and child.
PopularScience_19231001_0103_004_0055.xml
article
38
38
[no value]
[no value]
Portable Radio Set Has no Aerial nor Ground
[no value]
[no value]
[no value]
[no value]
A PORTABLE radio set which, it is claimed, uses no ground and no aerial, is here shown. It is said to have picked up broadcasting stations 100 miles distant. A secret type of circuit using one amplifying tube, is the explanation given for the remarkable performance.
PopularScience_19231001_0103_004_0056.xml
article
38
38
[no value]
[no value]
Sheet-Music Pages Turned by Foot Pressure
[no value]
[no value]
[no value]
[no value]
ONE of the recent inventions is an automatic sheet-music turner, adapted to all sizes of pages. The sheets are engaged by clips of fine wire, and are turned when pressure is exerted on a pedal. WHO are the world’s ten greatest scientists? From the whole field of science and from all the pages of history, which ten men stand out clearly above the thousands who have done great things, and why?
PopularScience_19231001_0103_004_0057.xml
article
38
38
[no value]
[no value]
Safety Platform Designed for Washing Windows
[no value]
[no value]
[no value]
[no value]
A NOVEL hanging platform that enables a person to wash the outside of upper-story windows in comfort and safety has been invented by James C. Brewster of Fort Madison, la. The device consists of a stand and cage formed of iron bars, with hooks or hangers that extend across the windowsill and engage the portion of the windowsill within the room.
PopularScience_19231001_0103_004_0058.xml
article
38
38
[no value]
[no value]
Single Lamp Varies Colors on Advertising Signs
[no value]
[no value]
[no value]
[no value]
TO PRODUCE changes in color in the illumination of advertising signs, an Indianapolis inventor has devised the electric lantern shown here. Hitherto, color changes in illuminated signs were effected by the employment of many electric lamps of various colors.
PopularScience_19231001_0103_004_0059.xml
article
39
39
[no value]
[no value]
World’s First Aerial Bicycle Flies
[no value]
[no value]
[no value]
[no value]
AN AERIAL bicycle, called the “cycleplane,” driven only by footpower applied by the pilot to an arrangement of pedals, recently achieved a short flight near Dayton, Ohio. It is said to be the first man-propelled flying device ever to lift itself from the ground.
PopularScience_19231001_0103_004_0060.xml
article
39
39
[no value]
[no value]
Six Fuses in One Socket
[no value]
[no value]
[no value]
[no value]
SIX fuses in the space commonly occupied by one is a recently devised convenience for the householder who forgets to keep a supply on hand. When one of the six fuses in the socket indicated by finger is blown out, a turn of the cap attached to it allows the current to pass through a new fuse.
PopularScience_19231001_0103_004_0061.xml
article
39
39
[no value]
[no value]
A “Camera Filling Station”
[no value]
[no value]
[no value]
[no value]
THIS diminutive “camera filling station,” built and displayed recently by C. L. Olds, of Lincoln, Neb., is made entirely of film spools except for four small nails holding together the roof signposts. Eight Christmas tree lights illuminated it in varied colors.
PopularScience_19231001_0103_004_0062.xml
article
39
39
[no value]
[no value]
Ingenious Record Repeater Weighs Less than Ounce
[no value]
[no value]
[no value]
[no value]
A SIMPLE but ingenious phonograph record repeater, weighing less than one ounce, is a recent invention that makes home dancing without an orchestra more convenient and more enjoyable. It is said to be so simple that a child can attach it without difficulty or damage to the record or to the machine.
PopularScience_19231001_0103_004_0063.xml
article
39
39
[no value]
[no value]
A Permanent or Temporary Paper Fastener
[no value]
[no value]
[no value]
[no value]
BUSINESS papers may be fastened together permanently or temporarily for working purposes by means of this improved fastener. The machine is adjusted simply by turning a little device with the forefinger; when one side of this device is turned up, the staple is pushed through the papers and clinched.
PopularScience_19231001_0103_004_0064.xml
article
39
39
[no value]
[no value]
Wood of Sawdust and Chalk
[no value]
[no value]
[no value]
[no value]
USING a mixture of 50 per cent sawdust with chalk and -chemicals and subjecting it to extremely heavy pressure, a Norwegian inventor claims to have perfected an artificial wood possessing the toughness of real lumber. The new substance is said to have the hardness of oak.
PopularScience_19231001_0103_004_0065.xml
article
40
40,41,42,118,119
[no value]
[no value]
Our Silent Partners, the Plants
“The Story of Man and His World”
One Common Ancestor
Every Garden a Sugar Mill
Life’s Marvelous Adjustments
Plants Die; Seeds Replace Them
How Seeds Are Dispersed
Some Plants Eat Meat!
Man Has Created Some Plants
FOR FURTHER READING
[no value]
[no value]
E. E. Free
D. T. MacDougal
EVERY human being is a parasite. Whether we like it or not, we must live upon the labor of others. These others are the plants. Plants supply all the food in the world. They can support themselves by absorbing non-living substances like water, salts from the soil, and gases from the air.
PopularScience_19231001_0103_004_0066.xml
article
43
43
[no value]
[no value]
A Lower Berth for Everybody, Is New Plan
[no value]
[no value]
[no value]
[no value]
SPACIOUSNESS and comfort, both day and night, are provided in an ingenious new design for sleeping cars proposed by M. C Krarup, consulting engineer. The illustration above shows two compartments of the car arranged for daytime use. The seat nearer the window is pivoted, allowing a range of positions.
PopularScience_19231001_0103_004_0067.xml
article
43
43
[no value]
[no value]
This Coin-in-the-Slot Radio Is Parisian Innovation
[no value]
[no value]
[no value]
[no value]
THE penny-in-the-slot machines with ear tubes that had their habitat in depots, amusement parks, and hotel lobbies have, for the most part, disappeared. With them have vanished the songs they emitted in squeaky jumbles of sound. But the idea they embodied lives today in this French radio machine, which is invading wherever Parisian crowds are.
PopularScience_19231001_0103_004_0068.xml
article
43
43
[no value]
[no value]
Revolving Sash Facilitates Window Cleaning
[no value]
[no value]
[no value]
[no value]
WINDOWS with double-hung sashes, that not only can be raised and lowered in the usual manner, but also swing completely around on horizontal pivots, have been designed recently to facilitate cleaning. When tilted at right angles to A METHOD whereby shingles of cedar and similar wood that have crimped in drying because of excessive moisture may be restored, has been announced by the United States Forestry Service.
PopularScience_19231001_0103_004_0069.xml
article
43
43
[no value]
[no value]
Crimped Shingles Restored By U. S. Forestry Service
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0070.xml
article
44
44
[no value]
[no value]
Auto Engine Serves as a Sawmill
[no value]
[no value]
[no value]
[no value]
THE “HOW My Car Serves Me” prize contest, announced in the September issue of POPULAR SCIENCE MONTHLY, has met with immediate response from our readers who own automobiles. Many of them have sent in letters and photographs describing novel uses to which they have put their cars.
PopularScience_19231001_0103_004_0071.xml
article
44
44
[no value]
[no value]
Baby Is Given Fresh Air in Window Cage
[no value]
[no value]
[no value]
[no value]
BABIES of flat and tenement dwellers, whose tiny lungs have been forced to breathe stale and overheated air, are offered relief by the recent English invention pictured above. A large metal crate is attached to the outside of the window by two stout iron poles.
PopularScience_19231001_0103_004_0072.xml
article
44
44
[no value]
[no value]
Droplights Are Adjusted by Simple Arm Device
[no value]
[no value]
[no value]
[no value]
DROPLIGHTS that swing from the ceiling by flexible wires have always been difficult to adjust to heights and angles such that they throw a maximum amount of light on the proper spot. Any one who has used them in the study, the office, the workshop or the garage has probably been forced to change the height by knotting the cord and to swing the lamp from place to place by tying it with strings attached to walls, joists, desk legs and other places.
PopularScience_19231001_0103_004_0073.xml
article
44
44
[no value]
[no value]
Quick-Change Screwdriver Contains Three Blades
[no value]
[no value]
[no value]
[no value]
THE ingenious little tool shown here is called a “lightningchange magazine screwdriver.” It has three sizes of blades, contained inside the handle and numbered 1, 2, and 3, according to size. There are three corresponding numbers on the handle, and the blade desired is obtained for use by turning a cap, rotating the handle until the number corresponding to the number of the blade is up, then tipping the handle until the blade drops into place.
PopularScience_19231001_0103_004_0074.xml
article
44
44
[no value]
[no value]
These Two-Piece Overalls Are Dustproof
[no value]
[no value]
[no value]
[no value]
THIS work garment has all the appearance of the ordinary one-piece overall suit, but in reality it is a two-piece suit so fashioned as to be absolutely dustproof. The suit consists of a jacket and trousers. The jacket has a waistband under which are tabs which button to the trousers.
PopularScience_19231001_0103_004_0075.xml
article
45
45
[no value]
[no value]
Making Shoal Water Soundings with Light
How Depth Is Determined
[no value]
[no value]
[no value]
AN ENGLISH inventor has devised a method of utilizing projected light to determine the depth of water through which a vessel is passing. The device is said to supply an accurate and satisfactory substitute for the time-worn operation of “heaving the lead” to make soundings in shallow water.
PopularScience_19231001_0103_004_0076.xml
article
45
45
[no value]
[no value]
Chicken Incubator Used in Cheesemaking
[no value]
[no value]
[no value]
[no value]
AN ORDINARY chicken incubator has been used with striking success to test milk in cheesemaking by J. L. Sammis, of the Wisconsin College of Agriculture, shown above with his testing apparatus. Milk samples are placed in test tubes in the incubator and subjected to heat of a temperature favorable to the development of bacteria.
PopularScience_19231001_0103_004_0077.xml
article
45
45
[no value]
[no value]
Gyroscopic Indicator Makes Night Flying Safe
[no value]
[no value]
[no value]
[no value]
PERILS have been of flying lessened by night, by a or new in clouds gyroscopic indicating instrument recently perfected by the United States Army Air Service at McCook Field, Ohio. It consists of two gyroscopes with axes at right angles to each other, and a glass tube resembling the bulb of a carpenter’s level.
PopularScience_19231001_0103_004_0078.xml
article
46
46
[no value]
[no value]
Roof Railway Aids in Cornice Work
[no value]
[no value]
[no value]
[no value]
TO FACILITATE the work of changing electric lamps for the cornice lights of its building, the Seattle Times, of Seattle, Wash., has installed a small railroad on its roof. The Times found that the many cornice lamps illuminating the building were difficult to replace, sometimes requiring 10 hours of labor.
PopularScience_19231001_0103_004_0079.xml
article
46
46
[no value]
[no value]
Air Cushion Seats Designed for Motor Buses
[no value]
[no value]
[no value]
[no value]
OMNIBUSES with seats that rest on pneumatic shock absorbers promise to solve one of today’s greatest passenger transportation problems in rural and suburban districts. Country roads are not always in first class condition, and to protect the passengers from painful bumps and shakings it is necessary to use pneumatic tires on the wheels of a vehicle.
PopularScience_19231001_0103_004_0080.xml
article
46
46
[no value]
[no value]
Spurned Corncob Rises to Dignity of Wood
[no value]
[no value]
[no value]
[no value]
YOU, who have thought of corncobs only * as holders provided by Nature from which you might nibble the sweet kernels, should be interested in the recent discovery by Professor Darling, of Milliken University, Decatur, 111., of a process by which 60 per cent of the cob can be manufactured into a substitute for wood.
PopularScience_19231001_0103_004_0081.xml
article
46
46
[no value]
[no value]
A Blowtorch that Solders and Brands
[no value]
[no value]
[no value]
[no value]
A COMBINATION soldering iron, blowtorch, and branding iron, which is self-heating, of light weight, and little more than a foot in length over all, has been developed by an Illinois manufacturer. Gasoline is used as fuel, and is carried from the large cylinder by cotton wicking to the flame tube through which it is fed by a patented needle valve and vaporized.
PopularScience_19231001_0103_004_0082.xml
article
46
46
[no value]
[no value]
Handwriting Telegraphed
[no value]
[no value]
[no value]
[no value]
TELEGRAPHIC transmission of written script—1453 words in six minutes—was accomplished recently by a new French invention. The handwriting was sent from Lyons to Malmaison, near Paris. Ordinary transmission of such a message by telegraph would have required 25 minutes.
PopularScience_19231001_0103_004_0083.xml
article
47
47
[no value]
[no value]
Bicycle Searchlight Made with a Flashlight
[no value]
[no value]
[no value]
[no value]
A BRACKET that permits an ordinary pocket flashlight to be utilized as a searchlight by a bicyclist has been invented by Clarence E. Graves, of Hammond, Ind. It is a strip of sheet metal fitting the circumference of the flash lamp, to which it is secured by a bolt and thumb nut.
PopularScience_19231001_0103_004_0084.xml
article
47
47
[no value]
[no value]
Adjustable Window Shelf for Flower Pots
[no value]
[no value]
[no value]
[no value]
FLOWER lovers who are city dwellers will warm to “Betsy Bobbit.” The young lady is an attractive adjustable shelf, which makes it possible to have a flower pot on even the narrowest windowsill. The device is of metal, sturdily built, and capable of supporting a pot weighing 20 pounds.
PopularScience_19231001_0103_004_0085.xml
article
47
47
[no value]
[no value]
Nerve Splicing Is Achieved
[no value]
[no value]
[no value]
[no value]
NERVE splicing, said to be the most delicate of surgical operations, is one of the latest achievements of curative science. Nerves from animals may be used to restore health and activity to human muscles and other body parts suffering from nerve loss or disease.
PopularScience_19231001_0103_004_0086.xml
article
47
47
[no value]
[no value]
A Mobile New Pump with Many Uses
[no value]
[no value]
[no value]
[no value]
AN ENGINEDRIVEN double - cylinder pump, mounted on automobile wheels, so that it may be moved from place to place by automobile, motorcycle, or motor truck, or drawn by hand, has been perfected by a Pennsylvania manufacturer. The device is said to adapt itself to a variety of uses.
PopularScience_19231001_0103_004_0087.xml
article
47
47
[no value]
[no value]
Inventor Soars in a Ten-Pound Flying Device
[no value]
[no value]
[no value]
[no value]
INVENTING a 10-pound flying machine and then flying with it was the daring exploit performed recently by a German inventor, Dr. I. Seehaase, who is shown here with his folded diminutive gravityoutwitter over his shoulder. The other picture shows the same device being handled in a high wind by attendants in preparation for a flight.
PopularScience_19231001_0103_004_0088.xml
article
48
48,49
[no value]
[no value]
Is a New Ice Age Coming?
Famous Polar Explorer Taking Radio into the Bleak Arctic
Why Not another Ice Age?
Radio Expert of the Expedition
[no value]
[no value]
Captain Donald B. MacMillan
When the following special article was received in the office of this magazine, the explorer already had embarked on his eighth expedition into the Arctic to determine, among other things, whether another Ice Age is beginning. Captain MacMillan is preeminently fitted to discuss this fascinating question. He has missed only two of the last 15 years in the Arctic.
PopularScience_19231001_0103_004_0089.xml
article
50
50
[no value]
[no value]
New Railroad Ditcher Is Versatile Machine
[no value]
[no value]
[no value]
[no value]
HIGH efficiency, extreme mobility and versatility, and low maintenance cost are said to be features of the improved heavy duty, revolving type railroad ditcher shovel shown below. It is possible to mount this machine on railroad trucks of standard or special gage, traction or continuous tread trucks.
PopularScience_19231001_0103_004_0090.xml
article
50
50
[no value]
[no value]
Relief for the Rheumatic
[no value]
[no value]
[no value]
[no value]
MORE than 4000 sufferers from rheumatism are said to have enjoyed an 80 per cent amelioration of symptoms under the bacteria injection treatment given 5000 patients during the last four years at the clinic of the New York University Medical College.
PopularScience_19231001_0103_004_0091.xml
article
50
50
[no value]
[no value]
Tiny Models Illustrate Industrial Methods
[no value]
[no value]
[no value]
[no value]
LITTLE models of industrial plants, revealing in easily grasped detail the construction and operation of factories, mines, furnaces, etc., are on exhibition in the Division of Mineral Technology, in the United States National Museum at Washington, D. C.
PopularScience_19231001_0103_004_0092.xml
article
50
50
[no value]
[no value]
Safe Milk-Bottle Carrier for Children
[no value]
[no value]
[no value]
[no value]
NO LONGER is there any reason why four-year-old Buddy should go forth to the store with a dime, some pennies, and a milk bottle and come back sobbing in a few minutes, penniless and milkless, except for what is splashed on him. Unless he falls down, the bottle carrier here shown will safeguard against childish carelessness.
PopularScience_19231001_0103_004_0093.xml
article
50
50
[no value]
[no value]
A Wireless Service Truck Answers “SOS” Calls
[no value]
[no value]
[no value]
[no value]
A WIRELESS sending and receiving set has been added to the equipment of the service truck operated by a Los Angeles transportation company. This truck is stationed halfway between Los Angeles and San Diego, Calif., keeping in touch with the home station, so that almost instantly it can be advised of a company truck in need of repairs along the road between the two cities.
PopularScience_19231001_0103_004_0094.xml
article
51
51
[no value]
[no value]
Metal Chain Will Prevent Finger Sucking
[no value]
[no value]
[no value]
[no value]
SMALL children can be cured of the finger-sucking habit if an arrangement of bands and dangling metal links is clamped around the end of the thumb or finger, says the inventor of this device. When the child attempts to put the finger, with band and chain attached, into its mouth, the metal parts come in contact with the tongue and the roof of the mouth.
PopularScience_19231001_0103_004_0096.xml
article
51
51
[no value]
[no value]
New Parlor Golf Game Played with Manikins
[no value]
[no value]
[no value]
[no value]
MANIKINS that play real golf on the parlor floor, under the control and direction of players, feature a new indoor golf game that includes tees, greens, bunkers, and even the water hazards of the outdoor game. The game is played with a club resembling a driver, which has the figure of a miniature golfer in place of the usual wooden head.
PopularScience_19231001_0103_004_0097.xml
article
51
51
[no value]
[no value]
Convenient Bridge-Score Pad Clamps to Table
[no value]
[no value]
[no value]
[no value]
EVERY one who plays bridge knows what an annoying article the score pad is. Sometimes you can’t find it when you’re ready to play. When you have found it and have started the game, the pad is likely to evidence an exasperating habit of traveling around the table, getting mixed up with the cards, or falling to the floor.
PopularScience_19231001_0103_004_0098.xml
article
51
51
[no value]
[no value]
Midget Locomotive Made of Old Ford Parts
[no value]
[no value]
[no value]
[no value]
A MINIATURE locomotive constructed of Ford parts is attracting attention at Culver City, Calif., where it is being displayed by De Witt Brady. The connecting rods are the only parts used in the motor car that serve the same purpose in the locomotive.
PopularScience_19231001_0103_004_0099.xml
article
52
52
[no value]
[no value]
Monobus May Bring Cheaper Rides
[no value]
[no value]
[no value]
[no value]
THE monobus, a hybrid of trolley car and autobus, has been suggested as the possible solution of transportation problems in suburban districts. By its use the cost of installation and expense of maintenance could be reduced, it is claimed, to the limits demanded by infrequent trolley service in thinly settled communities.
PopularScience_19231001_0103_004_0100.xml
article
52
52
[no value]
[no value]
Tiny 18th Century Watches Rival Modern Handiwork
[no value]
[no value]
[no value]
[no value]
MODERN jewelers who have produced a “dime size” watch movement, small enough to be mounted on a finger-ring, point to the achievement as an example of the progress made in the watchmaker’s art, but our illustration shows that small movements are nothing new.
PopularScience_19231001_0103_004_0101.xml
article
52
52
[no value]
[no value]
Lies Read in the Eyes by Novel Detector
[no value]
[no value]
[no value]
[no value]
LIES, even those harmless lies that lubricate so many of Life’s situations, promise to become hazardous luxuries if the “retinoscope,” a lie-trap devised by Dr. W. D. Bates, noted New York City ophthalmologist, is vindicated by experience and comes into wider use.
PopularScience_19231001_0103_004_0102.xml
article
52
52
[no value]
[no value]
Remarkable Sun-Dial as Accurate as a Watch
[no value]
[no value]
[no value]
[no value]
ONE of the most unusual sun-dials in existence is that at Columbia University, New York City, presented recently by the class of 1885. A 15-ton granite sphere casts a shadow upon the base so that the east and west edges of the shadow exactly pass through two marked points at high noon on any day of the year.
PopularScience_19231001_0103_004_0103.xml
article
53
53,54
[no value]
[no value]
Mastering the Science of Billiards
Don't Hit Too Hard
Practice Is the Best Teacher
[no value]
[no value]
Willie Hoppe
NO ONE would dream of plunging into deep water without first learning how to swim. Yet almost every day I see men attempting to play billiards—one of the most complicated and scientific games ever devised—with no knowledge of its fundamental principles beyond the fact that it consists of knocking three ivory balls around a felt-covered rectangular table with a tapering stick called a cue.
PopularScience_19231001_0103_004_0104.xml
article
55
55
[no value]
[no value]
Smallest Full-Grown Horse in the World
[no value]
[no value]
[no value]
[no value]
THIS is Tiny Mite, the smallest fullgrown horse in the world, 26 inches tall and weighing 51 pounds. His diminutive proportions are the more remarkable because he does not come of any diminutive breed of equines. He has as his sire and dam respectively, Baron B. and Lady Raffles, full-sized thoroughbreds and former race horses.
PopularScience_19231001_0103_004_0105.xml
article
55
55
[no value]
[no value]
Solid or Pneumatic Tires Worn by New Wheel
[no value]
[no value]
[no value]
[no value]
A NEW wheel design for motor trucks permits the use of solid or pneumatic tires without changing the wheel. On the wheel in the center may be placed either the solid tire and wide rim shown at the left or the pneumatic tire and rim shown at the right.
PopularScience_19231001_0103_004_0106.xml
article
55
55
[no value]
[no value]
Tennis Balls Are Cleaned by Brushing Machine
[no value]
[no value]
[no value]
[no value]
DIRTY tennis balls, which grime the hands and white sport clothes, now can be banished inexpensively, it is claimed. But it is the condition and not the ball that really is banished. Stains of grass or clay are said to be effectually removed by the recently patented brushing machine here shown.
PopularScience_19231001_0103_004_0107.xml
article
55
55
[no value]
[no value]
Armored Monster Once Roamed Texas
[no value]
[no value]
[no value]
[no value]
MANY thousand years ago this formidable looking creature roamed the plains of Texas. Perhaps it was the original Texas steer. This striking animal is Palaescincus, the “armored dinosaur,” a restoration of whose skeleton has just been placed in the American Museum of Natural History, New York City.
PopularScience_19231001_0103_004_0108.xml
article
55
55
[no value]
[no value]
World’s Champion Hen Has Laid 1300 Eggs
[no value]
[no value]
[no value]
[no value]
ABOVE is Mrs. Lyle Funk, of Shirley, I11., holding her prize white Leghorn hen, Lady Anne, said to be the champion egg producer of the world. Lady Anne is 10 years old, and in the nine years that elapsed since she learned to lay has produced more than 1300 eggs, with a total weight of about 175 pounds.
PopularScience_19231001_0103_004_0109.xml
article
55
55
[no value]
[no value]
Burglar Carries Lamp in Palm of His Glove
[no value]
[no value]
[no value]
[no value]
A SAFE-CRACKER’S ingenious lamp attached to the palm of a glove recently was seized by Detective Captain Sam Street, of San Antonio, Tex. In the palm of the glove is a pocket, in which is placed a small electric battery. Flat wires lead the current through the switch at the base of the index finger to a bulb at the base of the third finger.
PopularScience_19231001_0103_004_0110.xml
article
56
56
[no value]
[no value]
Midget Inboard Motor for Canoes
[no value]
[no value]
[no value]
[no value]
THIS 35-pound power plant for inboard installation in canoes marks the achievement of the long desired portable motor boat, permitting one man to take long, solitary canoe voyages through such districts as the Canadian lake country, which require frequent portaging.
PopularScience_19231001_0103_004_0111.xml
article
56
56
[no value]
[no value]
A Pocket Check Protector
[no value]
[no value]
[no value]
[no value]
PERFORATIONS to prevent the altering of checks, long used by business houses, are made available for personal checks by this new, pocket-size perforator. The perforator is of silver plates, between which the check is placed and punched.
PopularScience_19231001_0103_004_0112.xml
article
56
56
[no value]
[no value]
Crane and Truck Combined in Mobile Lifting Unit
[no value]
[no value]
[no value]
[no value]
THE mounting of a lifting crane on a storage battery electric truck was accomplished successfully for the first time recently by the New York Edison Company. Since being placed on the truck, one of five tons, the crane has shown a lifting capacity at least 40 per cent greater than that at which it was rated by the manufacturer.
PopularScience_19231001_0103_004_0113.xml
article
56
56
[no value]
[no value]
Upright Camp Fire Broiler for Outdoor Cooks
[no value]
[no value]
[no value]
[no value]
A NOVEL outdoor broiler that stands erect beside the fire has been invented for campers and picnickers. It is supported at the back by a sharp-pointed wire leg that is pushed into the sand or dirt. The invention really is a wire inclosed in a cooking pan.
PopularScience_19231001_0103_004_0114.xml
article
56
56
[no value]
[no value]
A Novel Hacksaw Frame
[no value]
[no value]
[no value]
[no value]
EVERY mechanic who knows how vital a tool a hacksaw can be will find this recently patented frame interesting. It is designed to undergo severe usage without springing. In designing the handle, the inventor remembered the mechanic’s comfort and shaped it to his hand.
PopularScience_19231001_0103_004_0115.xml
article
56
56
[no value]
[no value]
Filling Station for Pens
[no value]
[no value]
[no value]
[no value]
FOUNTAIN-PEN filling stations in office buildings, schools, and libraries are interesting possibilities of tomorrow. The “station” pictured here has been operated successfully for months at the University of Chicago. A penny dropped in the slot releases enough ink to fill an ordinary fountain pen.
PopularScience_19231001_0103_004_0116.xml
article
57
57,58
[no value]
[no value]
He Saved a Million Lives
The Inspiring Story of Pasteur, Great French Conqueror of Disease, Whose Centenary the World Celebrates
Saving Cattle
Priceless Work
Pasteur Develops Rabies Vaccine
[no value]
[no value]
R. E. Martin
THIS year the whole world is celebrating the centenary of Louis Pasteur, the great scientist, who, in point of alleviating suffering, has been called “the supreme benefactor of the human race.” France, the country of his birth, set aside six months in which to honor his memory by a series of fêtes and exhibits, one of which delegates from every country attended.
PopularScience_19231001_0103_004_0117.xml
article
59
59
[no value]
[no value]
Young Inventor Aids Uncle Sam
How 18-Year-Old Postal Employee Ingeniously Doubled His Output
Greenhorn Mystifies Experienced Men
[no value]
[no value]
H. H. Billany
NO BRANCH of the government service is more ready—I might say more anxious—to reward employees who evidence originality and ingenuity in the performance of their duties than the Post Office Department. Particularly is this so with regard to employees who Suggest or develop improvements in mailcarrying equipment or in the machinery of the shops where the mail equipment is manufactured.
PopularScience_19231001_0103_004_0118.xml
article
59
59
[no value]
[no value]
What a Small Invention Did for Me
Prize Contest Announcement
[no value]
[no value]
[no value]
READ Mr. Billany’s inspiring story above. An ingenious idea won recognition from the postal authorities for young Lombardi. Perhaps you have had some similar experience. Possibly some simple device you have invented has helped you in your work, has won promotion for you.
PopularScience_19231001_0103_004_0119.xml
article
59
59
[no value]
[no value]
Combination Wrench Has Wide Range of Uses
[no value]
[no value]
[no value]
[no value]
A TOOL with an unusually wide range of usefulness is the combination pliers, monkey-wrench and pipe wrench illustrated here. It is quickly adjusted to fit various sized pipes, bolts, nuts, caps, nipples, and similar parts. It has a capacity for parts up to one inch square and 1⅛ inches round.
PopularScience_19231001_0103_004_0120.xml
article
59
59
[no value]
[no value]
With Webbed Gloves, Bathers Swim like Ducks
[no value]
[no value]
[no value]
[no value]
BATHERS who claim to be able to swim like ducks now can make good their, boast by equipping themselves, not with webbed feet, but with webbed hands. The webbed rubber gloves shown below do the trick. Swimmers who have tried them say that they make the process of moving through the water almost as easy as walking.
PopularScience_19231001_0103_004_0121.xml
article
60
60
[no value]
[no value]
You Can Use Any Tube in This Set
[no value]
[no value]
[no value]
[no value]
TWO novel circuit arrangements are the features of the latest type of radio set, designed exclusively for the reception of broadcasted programs. Two rheostats, one of the high resistance type and the other of the low resistance type, are used with each tube socket.
PopularScience_19231001_0103_004_0122.xml
article
60
60
[no value]
[no value]
Radio Panels from Records
[no value]
[no value]
[no value]
[no value]
DANCE records of yesteryear that clutter your cabinet need not be thrown away if you are a radio enthusiast. They make excellent radio panels, being of excellent insulating material and easily drilled. The illustration shows two sets thus fashioned from discarded records.
PopularScience_19231001_0103_004_0123.xml
article
60
60
[no value]
[no value]
Loudspeakers and Phones Tested by Phonograph
[no value]
[no value]
[no value]
[no value]
AN INGENIOUS method of testing the comparative merits of radio loudspeakers or head phones by means of a phonograph has lately been devised by Benjamin F. Miessner, a radio engineer of Newark, N. J. The phonograph music is transformed into electric currents by a special type of microphone actuated by the reproducing needle.
PopularScience_19231001_0103_004_0124.xml
article
60
60
[no value]
[no value]
This New Resistance Unit Is for “Peanut” Tubes
[no value]
[no value]
[no value]
[no value]
WHEN operating the new dry cell tube that consumes .06 amperes, it is necessary to use a larger resistance than the regular rheostat in order properly to cut down the voltage of the three dry cells used in series to provide the proper operating current.
PopularScience_19231001_0103_004_0125.xml
article
60
60
[no value]
[no value]
Radio for the Steeplejack
[no value]
[no value]
[no value]
[no value]
RADIO enthusiasts seem to be wherever there is air and a place to stand or sit. This picture shows how radio followed Michael Bourke, steeplejack carpenter, to dizzy heights in order that his noonday meal might be spiced with melody.
PopularScience_19231001_0103_004_0126.xml
article
60
60
[no value]
[no value]
Radio to Join Ford Holdings
[no value]
[no value]
[no value]
[no value]
THE vast property holdings of Henry Ford, scattered throughout the world, are to be unified by radio. A large broadcasting station, strong enough to communicate across the Atlantic, is being constructed at the River Rouge Ford plant. This latest step results from the successful operation during the past eighteen months of radio and wireless communication between Ford plants throughout the United States and Ford headquarters in Dearborn and Detroit.
PopularScience_19231001_0103_004_0127.xml
article
61
61,62
[no value]
[no value]
Around the Radio Circuits
Third Article: Tuned Radio Frequency and Neutrodyne
Simplifying “Tuned Radio"
Variometer Will Help
Difference Lies in Grid Circuit
An Important Point
[no value]
[no value]
Jack Binns
This is the last of a series of three articles in which Jack Binns, our radio editor, reduces apparently intricate radio circuits to first principles SOMETHING about the name, “Tuned Radio Amplification,” gives it an air of mystery. To the average fan the name conjures up visions of controls and adjustments that only the expert can master.
PopularScience_19231001_0103_004_0128.xml
article
63
63
[no value]
[no value]
Largest Cut Stone Columns of Modern Times
[no value]
[no value]
[no value]
[no value]
THE largest single blocks of cut stone quarried in modern times, 36 in number, were erected recently as the columns of the new South Office Building at Harrisburg, Pa. Each of these blocks was five feet in diameter and 33 feet long, and each weighed, in the finished state, approximately 40 tons.
PopularScience_19231001_0103_004_0129.xml
article
63
63
[no value]
[no value]
This Three-Wheeled Truck Reduces Upkeep Costs
[no value]
[no value]
[no value]
[no value]
A THREE-WHEELED electric truck that is readily handled in confined spaces and can be turned about in the space on which it stands, has been developed by a Chicago firm. The truck is driven by the front wheel, inside of which the motor is mounted.
PopularScience_19231001_0103_004_0130.xml
article
63
63
[no value]
[no value]
Mechanical Marvel Blows Incandescent Bulbs
[no value]
[no value]
[no value]
[no value]
THE remarkable machine shown here, recently installed in the National Lamp Works of the General Electric Company at Cleveland, Ohio, performs all the operations of blowing incandescent lamps, having a capacity of 50,000 bulbs a day. The machine has as many as 14,000 parts.
PopularScience_19231001_0103_004_0131.xml
article
64
64
[no value]
[no value]
Useful Ideas for Home Convenience
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0132.xml
article
67
67
[no value]
[no value]
Cooking Better Food with Less Gas
Uncle Sam’s Tests with Standard Burners and Ovens Show How to Save Money and Enormous Quantities of Heat
Study Your Stove
The Blue Flame Is Important
Other Types of Cookers
Many Uses for Old Corks
[no value]
[no value]
[no value]
WOULD you, husbands of America, like to save from 25 to 50 per cent on your household gas bills? Would you, wives of America, like to help in the saving and at the same time see that the meals you cook, or whose cooking you direct, are prepared scientifically and efficiently?
PopularScience_19231001_0103_004_0133.xml
article
68
68
[no value]
[no value]
Wild-Animal Hunters Save U. S. Millions
Champion, at 70, Has Bagged 500 Lions
Wild Beasts Are Plentiful
Some Record Bags
Coin Clock Saves Money when You Wind It
[no value]
[no value]
[no value]
WAS there ever a small boy who did not dream of happiness in the wilderness, surrounded by perils, but downing with each bang of his trusty rifle another leaping, roaring lion? Ben V. Lily, champion hunter of the United States Biological Survey, was such a boy.
PopularScience_19231001_0103_004_0134.xml
article
69
69
[no value]
[no value]
Can Your Jaws Lift Jack Dempsey?
How Much Power Do You Use when You Eat?
[no value]
[no value]
Arthur D. Black
POSSIBLY you are aware that the human jaw is very strong. You have seen circus performers swinging from trapezes or raising enormous weights by the grip of the teeth. But do you know that the muscles of your own jaw, developed merely by the necessary work you perform in chewing your food, possess power enough to lift from the ground a man as large as Jack Dempsey?
PopularScience_19231001_0103_004_0135.xml
article
70
70,71
[no value]
[no value]
Oiling and Greasing Your Car
Costly Repair Bills, Even Accident or Death, May Be Penalties of Neglect
Just Where and How to Grease and Oil Your Auto
[no value]
[no value]
F. A. Platte
RECENTLY I found a neighbor stalled by the roadside. His machine was in the ditch. His clothes were covered with mud. He was white and shaking. “The steering gear broke and I was nearly killed,” he said. “Only the soft mud of the bank saved me.”
PopularScience_19231001_0103_004_0136.xml
article
72
72
[no value]
[no value]
Sliding Gear Simplifies Transmission
[no value]
[no value]
[no value]
[no value]
A SLIDING gear automobile transmission of a radically new type has the advantage of eliminating most of the gears and bearings that make up the present complicated transmission mechanisms. Power from the motor is communicated to a spur gear near the differential through a long shaft equipped with a universal connection.
PopularScience_19231001_0103_004_0137.xml
article
72
72
[no value]
[no value]
Know Your Car
The Generator and Its Circuits
[no value]
[no value]
[no value]
YOU may know that the generator on your car supplies electricity for the ignition, starting and lighting systems; but do you know how it is connected with the rest of the circuit? The generator itself is shunt wound, that is, a part of the electricity produced is shunted through the coils that provide the magnetized field through which the wires of the armature cut.
PopularScience_19231001_0103_004_0138.xml
article
72
72
[no value]
[no value]
New Sidelights for Autos Prevent Accidents
[no value]
[no value]
[no value]
[no value]
HOW many times would an automobile headlight providing a generous side ray have spared an accident along country roads at night? Such a lamp has been invented. It throws a wide flood of illumination to the side of the car. Two of the lamps on an open or closed car can be moved at the will of the driver to throw their rays in any direction.
PopularScience_19231001_0103_004_0139.xml
article
72
72
[no value]
[no value]
Efficient Tire Hand Pump Prevents Waste Effort
[no value]
[no value]
[no value]
[no value]
THIS newly devised tire pump, said to deliver more air with fewer strokes than any other hand pump on the market, has been perfected by a Kansas manufacturer. The unique construction of the plunger and barrel is said to eliminate waste compression, to insure all the air from the barrel going into the tire at each stroke, and to make it impossible to pump oil into the tire.
PopularScience_19231001_0103_004_0140.xml
article
73
73
[no value]
[no value]
More Service and Convenience from Your Car
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0141.xml
article
74
74
[no value]
[no value]
Inverse Duplex Set Will Double Amplification
How to Obtain Closer Tuning
[no value]
[no value]
Joseph Calcaterra
THE Flewellingset described last month represents the highest development of the simpler radio circuits using a single vacuum tube. This month I am describing the construction of a more elaborate receiver, which uses two vacuum tubes and a crystal detector, and in tests has given exceptional results for a two-tube set.
PopularScience_19231001_0103_004_0142.xml
article
75
75,115
The Home Workshop
[no value]
How to Rebuild a Broken-Down Car
Looking Over the Mechanism
[no value]
[no value]
Ray F. Kuns
NO MATTER how little money he has to spend, the man who is mechanically minded and has a genuine enthusiasm for automobiles never need be without a smoothly running and good looking car. What can be done in remodeling a broken down car is strikingly illustrated at the right.
PopularScience_19231001_0103_004_0143.xml
article
76
76
The Home Workshop
[no value]
Making the Most of Your Home Workshop
[no value]
[no value]
[no value]
[no value]
WHEN polishing with an emery cloth, the holder shown in Fig. 1 is more satisfactory than a flat file. The cloth is cut the right width and the ends are folded and slipped into the diagonal slots. The abrasive is then tightened by screwing the windnut.
PopularScience_19231001_0103_004_0144.xml
advertisement
77
77
[no value]
[no value]
S. C. JOHNSON & SON
[no value]
S. C. JOHNSON & SON
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0145.xml
article
78
78
The Home Workshop
[no value]
How to Build Serviceable Tables Quickly
[no value]
[no value]
[no value]
Leslie W. Lyon
AMATEUR woodworkers who have had little experience or cannot spend much time in their home workshops, often do not care to attempt making mortise and tenon joints, or even plain doweled joints. These workers will find useful the type of table construction shown in the accompanying illustrations.
PopularScience_19231001_0103_004_0146.xml
article
78
78
The Home Workshop
[no value]
Magnet Changes Telephone into Sensitive Loudspeaker
[no value]
[no value]
[no value]
George A. Luers
BY ADDING a powerful permanent magnet to an ordinary homemade loudspeaker, it can be made sufficiently sensitive to operate even with a crystal set, provided the receiver is quite close to a broadcasting station. The same loudspeaker, with a vacuum tube set or a combination crystal and vacuum tube receiver, gives exceptional results.
PopularScience_19231001_0103_004_0147.xml
advertisement
79
79
[no value]
[no value]
NATIONAL CARBON COMPANY, Inc.: RADIO BATTERY
[no value]
NATIONAL CARBON COMPANY, Inc.
RADIO BATTERY
[no value]
[no value]
PopularScience_19231001_0103_004_0148.xml
article
80
80
Better Shop Methods
[no value]
Improved Toolpost Speeds Up Lathe Work
[no value]
[no value]
[no value]
H. L. Wheeler
THOROUGHLY tested for a long period by the writer, the lathe toolpost illustrated has demonstrated unmistakably that it has several advantages over the conventional type of toolpost found on the majority of lathes. It has stood up under heavy cuts very much better than the single screw type of toolpost.
PopularScience_19231001_0103_004_0149.xml
article
80
80
Better Shop Methods
[no value]
Adjustable Mold Aids in Casting Vise Jaws
[no value]
[no value]
[no value]
H. S. L.
IN LARGE machine shops it is frequently necessary to cast lead vise jaws to fit vises of a number of different makes and sizes. This work is greatly simplified by using the adjustable mold illustrated. A convenient size for the bottom mold is 4¾ by 8 in. over all and for the top mold 3 3/4 by 8 in., the cast iron being 5/8 in. thick.
PopularScience_19231001_0103_004_0150.xml
article
80
80
Better Shop Methods
[no value]
Adjustable Mold Aids in Casting Vise Jaws
[no value]
[no value]
[no value]
J.R.
THE offset construction of this knurling tool allows the knurl to work right up against the shoulder. This is an advantage when the work is such that the yokelike arms of the common type of knurl holder are in the way. The steel shank is machined as shown and fitted with a retaining finger.
PopularScience_19231001_0103_004_0151.xml
advertisement
81
81
[no value]
[no value]
THE L. S. STARRETT CO.
[no value]
THE L. S. STARRETT CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0152.xml
advertisement
82
82
[no value]
[no value]
GOODELL-PRATT COMPANY
[no value]
GOODELL-PRATT COMPANY
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0153.xml
article
82
82
Better Shop Methods
[no value]
Machinist’s Marker Saves Time in Laying Out Cams
[no value]
[no value]
[no value]
H. L.
FOR the mechanic who has to lay out cams, the tool illustrated is a time saver. It was designed by Mr. William Hanson, a toolroom foreman, and is constantly proving its value in actual use. The tool can be held in the toolpost of a lathe and the cam disk held between its centers, or it can be placed on the cutter throw bar and the cam disk held in its place on the machine.
PopularScience_19231001_0103_004_0154.xml
advertisement
83
83
[no value]
[no value]
NATIONAL HOMEBUILDERS SOCIETY
[no value]
NATIONAL HOMEBUILDERS SOCIETY
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0155.xml
advertisement
84
84
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0156.xml
article
84
84
Better Shop Methods
[no value]
Some Machine Shop Kinks I Have Found Useful
[no value]
[no value]
[no value]
H. W. Bente
IN MILLING down a steel block recently, I found the ⅝ by 6 in. side cutter I was using—the only one available—chattered very much in taking heavy cuts. By working the cutter sideways against the work, as at A, I was able to proceed much faster and overcome the chattering entirely.
PopularScience_19231001_0103_004_0157.xml
advertisement
85
85
[no value]
[no value]
Montgomery Ward & Co.
[no value]
Montgomery Ward & Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0158.xml
article
86
86
Better Shop Methods
[no value]
How to Build an I-Beam Garage Crane
[no value]
[no value]
[no value]
J. R.
THE universal I-beam garage crane illustrated can be built at minimum expense in any garage repair shop. It is fabricated mainly of standard steel or iron shapes, and most of the work consists merely of drilling and bolting the parts together.
PopularScience_19231001_0103_004_0159.xml
article
86
86
Better Shop Methods
[no value]
Estimating Weight of Castings
[no value]
[no value]
[no value]
F. M. S.
A HANDY method for a foundry to determine what quantity of steel or brass to pour to complete any number of castings is to stamp the weight of the casting on the pattern. Where this is not practical, the same result can be obtained by figuring that a steel casting weighs 16 times as much as its pattern in white pine, and a brass casting 18 times.
PopularScience_19231001_0103_004_0160.xml
advertisement
86
86
[no value]
[no value]
Electrical Research Laboratories
[no value]
Electrical Research Laboratories
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0161.xml
advertisement
86
86
[no value]
[no value]
RADIO BARGAINS
[no value]
RADIO BARGAINS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0162.xml
advertisement
86
86
[no value]
[no value]
AMERICAN SHOW CARD SYSTEM LIMITED
[no value]
AMERICAN SHOW CARD SYSTEM LIMITED
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0163.xml
advertisement
86
86
[no value]
[no value]
W. B. & J. E. Boice: Boice Pony Bench Machine
[no value]
W. B. & J. E. Boice
Boice Pony Bench Machine
[no value]
[no value]
PopularScience_19231001_0103_004_0164.xml
advertisement
87
87
[no value]
[no value]
Advertisements
[no value]
THE MAGNAVOX CO.
R2 with 18-inch curvex horn
THE MAGNAVOX CO.
R3 with 14-inch curvex horn
[no value]
[no value]
PopularScience_19231001_0103_004_0165.xml
article
88
88,90,91
Better Shop Methods
[no value]
Time-Tested Tricks in Casting Babbitt Bearings
[no value]
[no value]
[no value]
Joe V. Romig
WHILE all machinists are more or less familiar with the use of Babbitt metal, there are, nevertheless, many tricks that make the work easier. Babbitt metal is ordinarily a combination of three or more of the following metals: tin, lead, bismuth, antimony, and copper.
PopularScience_19231001_0103_004_0166.xml
advertisement
88
88
[no value]
[no value]
THE C. D. TUSKA CO.: Tuska Popular No. 225
[no value]
THE C. D. TUSKA CO.
Tuska Popular No. 225
[no value]
[no value]
PopularScience_19231001_0103_004_0167.xml
advertisement
88
88
[no value]
[no value]
CALIFORNIA TRADING CO.
[no value]
CALIFORNIA TRADING CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0168.xml
advertisement
88
88
[no value]
[no value]
THE MONARCH MACHINE TOOL CO.
[no value]
THE MONARCH MACHINE TOOL CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0169.xml
advertisement
89
89
[no value]
[no value]
American Technical Society
[no value]
American Technical Society
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0170.xml
advertisement
90
90
[no value]
[no value]
MILLERS FALLS COMPANY: Radio Hand Drill No. 85
[no value]
MILLERS FALLS COMPANY
Radio Hand Drill No. 85
[no value]
[no value]
PopularScience_19231001_0103_004_0171.xml
advertisement
90
90
[no value]
[no value]
SMITH & HEMENWAY CO., Inc.
[no value]
SMITH & HEMENWAY CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0172.xml
article
91
91
[no value]
[no value]
Labor Saving Features to Appear Next Month
[no value]
[no value]
[no value]
[no value]
A SIMPLE fixture that takes the guess out of dressing grinding wheels to accurate radii will be described by Henry S. Laraby in the November Better Shop Methods Department. Joe V. Romig will have one of his characteristic “Old Bill” stories on how a typical old-time machinist taught him to speed up his work.
PopularScience_19231001_0103_004_0173.xml
advertisement
91
91
[no value]
[no value]
NICHOLSON FILE CO.
[no value]
NICHOLSON FILE CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0174.xml
article
92
92
Better Shop Methods
[no value]
Building a Kitchen Cabinet Work Table
[no value]
[no value]
[no value]
[no value]
WHAT a workbench is to a shop, a kitchen table cabinet is to a kitchen. If properly designed and well made, it is a constant saver of the housewife’s steps, time, and labor. This kitchen work table—fully detailed in POPULAR SCIENCE MONTHLY’S Blueprint No. 27— can be built at a moderate cost for materials by any home worker who is handy with woodworking tools, and will give service equal to, if not more satisfactory than the average expensive table cabinet sold in department or furniture stores.
PopularScience_19231001_0103_004_0175.xml
advertisement
92
92
[no value]
[no value]
Advertisements
[no value]
FRANK MOSSBERG CO.
No. 654 Valve Spring Lifter for Fords
FRANK MOSSBERG CO.
No. 1944 “Double Four” Socket Set
[no value]
[no value]
PopularScience_19231001_0103_004_0176.xml
article
93
93
Better Shop Methods
[no value]
Are You Taking Advantage of Our Workshop Blueprints?
[no value]
[no value]
[no value]
[no value]
MANY of our readers are spending pleasant and profitable hours of their spare time in making articles described in the Home Workshop Department and detailed in our series of blueprints. A letter from one of them, Charles L. Hausel, of Marcus Hook, Pa., is as follows: Inclosed find photograph of the electric washing machine I constructed from your Blueprint No. 12.
PopularScience_19231001_0103_004_0177.xml
advertisement
93
93
[no value]
[no value]
Blueprint Service Dept.
[no value]
Blueprint Service Dept.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0178.xml
advertisement
93
93
[no value]
[no value]
REMINGTON TYPEWRITER COMPANY
[no value]
REMINGTON TYPEWRITER COMPANY
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0179.xml
advertisement
94
94
[no value]
[no value]
E. C. ATKINS & CO., Inc.
[no value]
E. C. ATKINS & CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0180.xml
advertisement
94
94
[no value]
[no value]
Lindstrom & Company
[no value]
Lindstrom & Company
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0181.xml
article
94
94,95
Better Shop Methods
[no value]
How to Make Rigid Shaft Hangers from Pipe Fittings
[no value]
[no value]
[no value]
John G. Hanna
MOST mechanics know that an excellent light shaft support or hanger can be made with a piece of pipe, a flange and a babbitted tee. In using such a support for carrying a countershaft some distance above my bench to operate a bench drill, I found that the belt could not be tightened very much and that there was a tendency toward vibration.
PopularScience_19231001_0103_004_0182.xml
article
95
95
Better Shop Methods
[no value]
Attachment for Holding the Window-Shade Rollers
[no value]
[no value]
[no value]
B. F. DASHIELL
WINDOW shades may sometimes be used more satisfactorily if hung to the window-casings as shown below instead of in the usual fashion. The shade and its brackets are mounted upon a light strip of wood or molding strip to match the style of window-casing.
PopularScience_19231001_0103_004_0183.xml
advertisement
95
95
[no value]
[no value]
G. P. PUTNAM’S SONS
[no value]
G. P. PUTNAM’S SONS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0184.xml
advertisement
96
96
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0185.xml
article
96
96
Better Shop Methods
[no value]
Cheaply Made Garage Lighting Fixture Banishes Shadows
[no value]
[no value]
[no value]
M. E.
BY USING two inexpensive homemade reflectors, you can light your garage or shop with a mellow, diffused light that is much better for working purposes than the harsh light thrown by a single reflector. The primary reflector is simply a 10cent pan or basin.
PopularScience_19231001_0103_004_0186.xml
article
96
96
Better Shop Methods
[no value]
Table Knife Quickly Converted into Photo Trimmer
[no value]
[no value]
[no value]
G. L.
A WASHINGTON, D. C., schoolboy who wished to trim a number of small photographic prints, improvised the paper trimmer illustrated. The blade is a cheap steel table knife, one edge being ground to a sharp bevel. The knife is attached to a block of wood with a round head screw and washer and a strip of sheet iron is fastened to the right-hand edge of the base.
PopularScience_19231001_0103_004_0187.xml
article
97
97
Better Shop Methods
[no value]
Brass Paper Fastener Serves as Heavy Lettering Pen
[no value]
[no value]
[no value]
C. M. T.
A DRAFTSMAN who does high-grade shaded lettering on certificates, testimonials, and showcards, rarely uses anything but pens made of brass paper fasteners for heavy lettering. The amateur draftsman will find this type of pen a useful makeshift when a commercial shading pen is not at hand.
PopularScience_19231001_0103_004_0188.xml
article
97
97
Better Shop Methods
[no value]
Speedy Method of Making a LooseLeaf Notebook Cover
[no value]
[no value]
[no value]
[no value]
WHEN a loose-leaf notebook cover is needed quickly, or one of an odd size or shape is required, you can make it for a fraction of the cost of a commercial cover. The one illustrated, for a 4¼ by 7¼ in. sheet, is made of thin fiber board 7¾ by 9½ in. Another fiber piece 2 by 6¾ in.
PopularScience_19231001_0103_004_0189.xml
article
97
97
Better Shop Methods
[no value]
When Grinding Wood Chisels
[no value]
[no value]
[no value]
[no value]
TO GRIND chisels and plane bits quickly and accurately I use a guide as shown. By holding the forefinger against the guide as a stop and running the tool to and fro sideways, never changing the grip when dipping the steel in water or examining the edge, I am sure to keep a true bevel.
PopularScience_19231001_0103_004_0190.xml
advertisement
97
97
[no value]
[no value]
The Rudolph Wurlitzer Co.
[no value]
The Rudolph Wurlitzer Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0191.xml
article
98
98
Better Shop Methods
[no value]
Making a Grooving Attachment for an Electric Drill
[no value]
[no value]
[no value]
Arthur M. Samp
IF YOU are a worshiper at the home workshop shrine, you will do well to add an electric hand drill to your set of tools. One can be made, should the expense of a commercial drill not be warranted. Then, having a drill, add the saw attachment for grooving that is illustrated below.
PopularScience_19231001_0103_004_0192.xml
advertisement
98
98
[no value]
[no value]
Diamond State Fibre Company
[no value]
Diamond State Fibre Company
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0193.xml
advertisement
98
98
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0194.xml
advertisement
98
98
[no value]
[no value]
Young Typewriter Co.
[no value]
Young Typewriter Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0195.xml
advertisement
98
98
[no value]
[no value]
Buffalo Jewelry Mfg. Co.
[no value]
Buffalo Jewelry Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0196.xml
article
99
99
Better Shop Methods
[no value]
Rubber Stamps Can Be Made with Tube Vulcanizer
[no value]
[no value]
[no value]
A. G.
HOW easily a rubber stamp can be made with a small tube vulcanizer was demonstrated to me recently by a mechanic in a small tire shop. An aluminum strip with lettering such as is made by a stamping machine of the penny-in-the-slot type was used as a mold.
PopularScience_19231001_0103_004_0197.xml
article
99
99
Better Shop Methods
[no value]
How to Fasten Fence Wire to Iron Posts
[no value]
[no value]
[no value]
J. V.
DISCARDED iron pipes often can be utilized for fence posts if they are cut to length and given a coat of asphaltum paint to prevent them from further rusting. This would be done more frequently if simple methods for fastening wire to such posts were known.
PopularScience_19231001_0103_004_0198.xml
advertisement
99
99
[no value]
[no value]
AMERICAN TELEPHONE AND TELEGRAPH COMPANY AND ASSOCIATED COMPANIES
[no value]
AMERICAN TELEPHONE AND TELEGRAPH COMPANY AND ASSOCIATED COMPANIES
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0199.xml
advertisement
99
99
[no value]
[no value]
H. Gerstner & Sons
[no value]
H. Gerstner & Sons
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0200.xml
advertisement
99
99
[no value]
[no value]
AMERICAN PIPE BENDING MACHINE CO.
[no value]
AMERICAN PIPE BENDING MACHINE CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0201.xml
advertisement
99
99
[no value]
[no value]
FERRY & CO.: Big 3-Ft. Telescope
[no value]
FERRY & CO.
Big 3-Ft. Telescope
[no value]
[no value]
PopularScience_19231001_0103_004_0202.xml
advertisement
100
100
[no value]
[no value]
NORTH BROS. MFG. Co.
[no value]
NORTH BROS. MFG. Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0203.xml
article
100
100
Better Shop Methods
[no value]
Can Serves as a Reflector for Ornamental Bed Lamp
[no value]
[no value]
[no value]
[no value]
NEAT and inexpensive to make, the reading lamp illustrated is designed to hook on to the head of a bedstead. Its reflector is nothing more than a can about 5 in. in diameter and 10 in. long, cut lengthwise so that it will form a semicircular roll about 3 in. deep.
PopularScience_19231001_0103_004_0204.xml
article
100
100
Better Shop Methods
[no value]
Light Press Built Cheaply from Two by Fours
[no value]
[no value]
[no value]
L. G.
BUILT mainly of 2 by 4 in. lumber, this cheap homemade press serves for putting in or removing bushings and gears, straightening parts, and performing similar work that requires considerable pressure. By the use of suitable blocks, short pieces of pipe, and mandrels, almost any simple press work can be done with this press.
PopularScience_19231001_0103_004_0205.xml
advertisement
100
100
[no value]
[no value]
The Veeder Mfg. Co.
[no value]
The Veeder Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0206.xml
article
101
101
Better Shop Methods
[no value]
Connecting Rods and Pipe Form Sensitive Bench Drill
[no value]
[no value]
[no value]
[no value]
BY UTILIZING connecting rods such as are used on Ford cars, the home worker can make himself a handy sensitive bench drill at little cost for material. The parts needed are six connecting rods, some 1-in. pipe, one T, one ell, one cap, two close nipples, and two pipe flanges.
PopularScience_19231001_0103_004_0207.xml
article
101
101
Better Shop Methods
[no value]
Saw Teeth Improve Wood Rack
[no value]
[no value]
[no value]
[no value]
TO KEEP round firewood from turning in a wood rack or sawbuck, it is necessary only to nail to diagonally opposite arms of the rack 8or 10-in. sections of a broken or discarded crosscut saw. These are placed as shown, with the teeth projecting or ZA inIn fact, one section usually is sufficient.
PopularScience_19231001_0103_004_0208.xml
advertisement
101
101
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0209.xml
advertisement
102
102
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0210.xml
article
102
102,103,104
Better Shop Methods
[no value]
Constructing a Sawtable for the Home Workshop
Fence Materials
[no value]
[no value]
Henry S. Laraby
FOR the home or farm workshop where the necessary power is available, no single machine will do as much work and pay more returns in time and labor saved than a circular sawtable. The one illustrated has been so designed that it can be built at a minimum cost and with as little work as possible.
PopularScience_19231001_0103_004_0211.xml
advertisement
103
103
[no value]
[no value]
THE IVES MANUFACTURING CORPORATION
[no value]
THE IVES MANUFACTURING CORPORATION
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0212.xml
advertisement
103
103
[no value]
[no value]
Babson Bros.
[no value]
Babson Bros.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0213.xml
advertisement
104
104
[no value]
[no value]
THE AUTOMATIC ELECTRICAL DEVICES CO.
[no value]
THE AUTOMATIC ELECTRICAL DEVICES CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0214.xml
advertisement
104
104
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0215.xml
advertisement
104
104
[no value]
[no value]
W F. YOUNG, Inc>
[no value]
W F. YOUNG, Inc>
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0216.xml
advertisement
104
104
[no value]
[no value]
THE MIDWEST RADIO COMPANY
[no value]
THE MIDWEST RADIO COMPANY
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0217.xml
article
104
104
Better Shop Methods
[no value]
Electric Iron Alarm
[no value]
[no value]
[no value]
G. M. V. H.
RECENTLY we found the house full of smoke caused by a red-hot electric iron that had been left on the ironing board. To prevent a similar accident, I placed a two-way socket at the end of the drop and screwed the iron plug in one and a red light in the other.
PopularScience_19231001_0103_004_0218.xml
advertisement
105
105
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0219.xml
article
105
105
Better Shop Methods
[no value]
Auto Wheels Form Decorations for Fence Panels
[no value]
[no value]
[no value]
[no value]
AN UNUSUAL design for a fence can be obtained by using discarded auto wheels as decorations. Such a fence is especially appropriate around a filling station or on the grounds about a garage. The construction is simple yet rigid. The top and bottom rails of each panel are 2 by 2 in. and the wheel is held between them by the flanges of the iron rim.
PopularScience_19231001_0103_004_0220.xml
advertisement
106
106
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0221.xml
article
106
106
Better Shop Methods
[no value]
Panel Seat Saves Steps in Small Kitchenette
[no value]
[no value]
[no value]
A. G.
IN SMALL kitchens or kitchenettes, where every foot of space is valuable, a panel seat made as illustrated is a useful addition. When not in use, the seat folds up flush against the wall. While it has nothing to recommend it in the way of comfort, it does provide a handy rest for the housewife.
PopularScience_19231001_0103_004_0222.xml
article
106
106
Better Shop Methods
[no value]
Carom Shooter Easily Made
[no value]
[no value]
[no value]
G.E.H.
THE simply made carom shooter illustrated is designed to save the fingertips. A checker or carom is drilled through horizontally to take a plunger made from a length of dowel or other small rod. A rubber band is tacked, as shown, and held against the enlarged end of the plunger by a staple.
PopularScience_19231001_0103_004_0223.xml
article
106
106
Better Shop Methods
[no value]
Weaving Small Rubber Mats
[no value]
[no value]
[no value]
M. N. K.
USEFUL rubber mats can be made quite easily from 1-in. wide strips cut from old inner tubes. If some of the strips are red and others gray, interesting patterns may be arranged. First tack down the lengthwise strips, stretching them slightly, and then weave the cross pieces.
PopularScience_19231001_0103_004_0224.xml
advertisement
109
109
[no value]
[no value]
American Technical Society
[no value]
American Technical Society
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0225.xml
advertisement
109
109
[no value]
[no value]
University of Applied Science
[no value]
University of Applied Science
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0226.xml
article
109
109
Better Shop Methods
[no value]
Micrometer Variable Condenser Made for a Few Cents
[no value]
[no value]
[no value]
[no value]
FOR a few cents a radio fan can make a micrometer variable condenser that will give exceptionally sharp tuning in connection with a large condenser or used alone where critical adjustment of capacity is required in a hook-up. The condenser plates are two brass or zinc disks.
PopularScience_19231001_0103_004_0227.xml
article
109
109
Better Shop Methods
[no value]
Testing Radio Crystals Quickly
[no value]
[no value]
[no value]
S. L. P.
TO SAVE time in testing the relative merits of a number of mounted and unmounted radio crystals, I use the simple detector stand illustrated in place of the regular glass-covered detector on my set. Each crystal to be tested is placed on the copper tray with the tweezers, pushed under the catwhisker, and manipulated until the surfaces have been thoroughly tried out.
PopularScience_19231001_0103_004_0228.xml
advertisement
110
110
[no value]
[no value]
The WorkRite Mfg. Co.
[no value]
The WorkRite Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0229.xml
advertisement
110
110
[no value]
[no value]
CLARENCE A. O’BRIEN
[no value]
CLARENCE A. O’BRIEN
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0230.xml
article
110
110
Better Shop Methods
[no value]
Fountain Pen Ink Bottle Turned into Spirit Lamp
[no value]
[no value]
[no value]
F. M. W.
WHEN you have drained one of those handy filler-top desk bottles of fountain pen ink, the empty bottle can be converted into a spirit lamp for the workshop or laboratory. Nick the glass filler with a file just where it starts to contract in size, and snap it off clean.
PopularScience_19231001_0103_004_0231.xml
article
110
110
Better Shop Methods
[no value]
Locked Barrel Is Useful for Storing Heavy Tools
[no value]
[no value]
[no value]
L. A.
ALTHOUGH heavy and large tools are almost invariably stored in the corner of the shop or barn because of the lack of a suitable box, this practice often results in loss or breakage. A substantial and serviceable container for such tools is a tight coopered barrel, fitted with a reenforced cover, hinges, and a hasp.
PopularScience_19231001_0103_004_0232.xml
article
110
110
Better Shop Methods
[no value]
Making Shrink Fits
[no value]
[no value]
[no value]
H. G.
WHEN shrinking small parts together, it is not easy to obtain the precise fit necessary so that the outer part, when heated, will just slip over the inner. It is a matter of cut and try, plus care and experience. There is one little kink, however, that often has been found useful.
PopularScience_19231001_0103_004_0233.xml
advertisement
111
111
[no value]
[no value]
VICTOR J. EVANS & CO.
[no value]
VICTOR J. EVANS & CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0234.xml
article
111
111
Better Shop Methods
[no value]
One Knob Provides Vernier for Two Radio Instruments
[no value]
[no value]
[no value]
C. M. WILCOX
THE unusual feature of this Vernier control for a radio receiving set is that a single knob operates both the rotor of a variocoupler or variometer and a variable condenser. The operator makes fine adjustments of either without removing his hand from the knob, and this, of course, makes close tuning easier than if individual Verniers were used for the instruments.
PopularScience_19231001_0103_004_0235.xml
article
111
111
Better Shop Methods
[no value]
Waterproofing Shoes
[no value]
[no value]
[no value]
[no value]
SHOES can be made thoroughly waterproof at home by using any of the formulas given below. These have been tested by the U. S. Department of Agriculture. Formula 1: Neutral wool grease, 8 oz.; dark petrolatum, 4 oz.; paraffin wax, 4 oz. Formula 2: Petrolatum, 1 lb.; beeswax, 2 oz.
PopularScience_19231001_0103_004_0236.xml
advertisement
112
112
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0237.xml
article
112
112
[no value]
[no value]
Handy Wall Case Improves Cheap Alarm Clock
[no value]
[no value]
[no value]
[no value]
BY THE addition of the case illustrated, a common alarm clock can be used as a wall clock during the day and as an ordinary alarm clock at night. The case, if neatly made and carefully finished, converts even the cheapest alarm clock into a clock of attractive appearance.
PopularScience_19231001_0103_004_0238.xml
article
112
112
[no value]
[no value]
Repairing Camera Bellows
[no value]
[no value]
[no value]
[no value]
ZIGZAG marks or patches sometimes found on films taken by amateur photographers are very often due to small holes in the bellows of a folding camera. To locate such defects remove the back of the camera and hold it up to the sun, with the shutter closed and place a black cloth over your head to exclude the light.
PopularScience_19231001_0103_004_0239.xml
article
115
115
[no value]
[no value]
Enlarging Sketches with Rubber Band and Pencils
[no value]
[no value]
[no value]
[no value]
THERE are a number of ways of enlarging or reducing sketches, but the simplest method that I know is the one illustrated below. An ordinary rubber band and two pencils does the trick, or a rubber band, a lead pencil, and a pen. Put a knot in the rubber band close to the center, as shown.
PopularScience_19231001_0103_004_0240.xml
advertisement
115
115
[no value]
[no value]
General Electric Company: Tungar Battery Charger
[no value]
General Electric Company
Tungar Battery Charger
[no value]
[no value]
PopularScience_19231001_0103_004_0241.xml
advertisement
115
115
[no value]
[no value]
AMERICAN MOTOR CYCLE CO.
[no value]
AMERICAN MOTOR CYCLE CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0242.xml
advertisement
115
115
[no value]
[no value]
MADISON SHIRT CO.
[no value]
MADISON SHIRT CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0243.xml
advertisement
115
115
[no value]
[no value]
JOHN L. WHITING-J. J. ADAMS CO.: WHITING - ADAMS BRUSHES
[no value]
JOHN L. WHITING-J. J. ADAMS CO.
WHITING - ADAMS BRUSHES
[no value]
[no value]
PopularScience_19231001_0103_004_0244.xml
advertisement
116
116
[no value]
[no value]
MARSHALL STILLMAN ASSOCIATION
[no value]
MARSHALL STILLMAN ASSOCIATION
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0245.xml
advertisement
116
116
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0246.xml
advertisement
116
116
[no value]
[no value]
CROWN FUEL SAVER CO.
[no value]
CROWN FUEL SAVER CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0247.xml
advertisement
116
116
[no value]
[no value]
THORDARSON ELECTRIC MFG, CO.
[no value]
THORDARSON ELECTRIC MFG, CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0248.xml
article
116
116
[no value]
[no value]
Hot-Water Relief Valves Prevent Waste and Leaks
[no value]
[no value]
[no value]
John H. Schalek
A SIDE from corrosion, the greatest annoyance experienced by the householder is that of leaking joints in the socalled “closed system” of water heating. In this system there usually is a cheek valve, which prevents the hot water’s backing into the meter and damaging the hard rubber parts.
PopularScience_19231001_0103_004_0249.xml
article
116
116
[no value]
[no value]
Joining Sewing-Machine Belts
[no value]
[no value]
[no value]
W. B.
IN REPAIRING a broken sewing-machine belt, the home mechanic often has difficulty in finding a piece of soft wire the right size to bend into a connecting link. A length of No. 16 or No. 18 gage soft iron wire of exactly the proper size can be obtained by tearing off the cover of an old tobacco tin of the type shown and using the hinge pin.
PopularScience_19231001_0103_004_0250.xml
advertisement
117
117
[no value]
[no value]
E. J. SWEENEY
[no value]
E. J. SWEENEY
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0251.xml
advertisement
117
117
[no value]
[no value]
The Simon & Skidmore Mfg, Co.: SIMORE LIGHTNING CHANGE SCREWDRIVER
[no value]
The Simon & Skidmore Mfg, Co.
SIMORE LIGHTNING CHANGE SCREWDRIVER
[no value]
[no value]
PopularScience_19231001_0103_004_0252.xml
advertisement
117
117
[no value]
[no value]
Acorn Brass Mfg, Co.: Duble-Heat ELECTRIC STOVE
[no value]
Acorn Brass Mfg, Co.
Duble-Heat ELECTRIC STOVE
[no value]
[no value]
PopularScience_19231001_0103_004_0253.xml
article
117
117
[no value]
[no value]
Gilded Picture Frames Made without Special Moldings
[no value]
[no value]
[no value]
[no value]
TO MAKE gilded picture frames without rabbeted molding or any expensive materials is not particularly difficult. The stock for the frames should be ⅛, 3/16 or ½ in. thick and 2½ in. wide for small sizes, and ¼ or ⅜ in. thick and 3 or 4 in. wide for larger pictures.
PopularScience_19231001_0103_004_0254.xml
article
117
117
[no value]
[no value]
“Junking” an Old Auto
[no value]
[no value]
[no value]
[no value]
YOU can often obtain more money for an old car if you “junk” it yourself than if you sell it intact to a junk dealer. Wreck the machine and separate the various kinds of metal. Sell the metal as scrap, and whatever is too bulky to get rid of in this way, dispose of to the junkman.
PopularScience_19231001_0103_004_0255.xml
advertisement
118
118
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0256.xml
advertisement
119
119
[no value]
[no value]
Advertisements
[no value]
[no value]
C-301A
[no value]
C-299
[no value]
[no value]
PopularScience_19231001_0103_004_0257.xml
advertisement
119
119
[no value]
[no value]
Alexander Laboratories
[no value]
Alexander Laboratories
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0258.xml
advertisement
119
119
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0259.xml
advertisement
119
119
[no value]
[no value]
JOS, DE ROY & SONS
[no value]
JOS, DE ROY & SONS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0260.xml
advertisement
120
120
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0261.xml
article
120
120
[no value]
[no value]
Plug Switchblock Gives Easy Control of Radiophones
[no value]
[no value]
[no value]
[no value]
THE radio fan who prizes neat and unusually efficient apparatus will find the switchboard illustrated an excellent means for controlling the connections of his loudspeaker and telephone headsets. Five pairs of phones and a loudspeaker can be plugged in or out at will without changing any connections.
PopularScience_19231001_0103_004_0262.xml
advertisement
120
120
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0263.xml
article
121
121
[no value]
[no value]
Ingenious Gun Rest Simplifies Testing Rifle Sights
[no value]
[no value]
[no value]
LEROY W. HUTCHINS
EVERY sportsman occasionally wishes to test the accuracy of his rifle sights. In doing this easily and quickly, the gun rest illustrated is a distinct aid. It reduces the “human element” to a minimum, and, by using it for several shots, the grouping on the target will show up any marked deviation to right or left, or high or low.
PopularScience_19231001_0103_004_0264.xml
article
121
121
[no value]
[no value]
Changeable “Note” for Milkman
[no value]
[no value]
[no value]
KARL L. MARTIN
THE addition of a revolving indicator to a milk-bottle box makes it unnecessary to write notes to the milkman when extra quantities of milk and cream are desired. The wooden roll, made from an old curtain pole, is mounted so as to revolve easily near the top of the box.
PopularScience_19231001_0103_004_0265.xml
advertisement
121
121
[no value]
[no value]
DANIEL A. SIMMONS
[no value]
DANIEL A. SIMMONS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0266.xml
advertisement
121
121
[no value]
[no value]
Moler System of College
[no value]
Moler System of College
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0267.xml
advertisement
122
122
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0268.xml
article
122
122
[no value]
[no value]
Home Workshop Chemistry
Simple Formulas that Will Save Time and Money
[no value]
[no value]
ERNEST BADE
CEMENTS and glues can be used for the most diverse purposes in the home workshop. Some are water resistant, others fireproof, and others useful for joining either similar or dissimilar materials. An effective cement for many substances can easily be made by soaking one part of glue in an equal quantity of water.
PopularScience_19231001_0103_004_0269.xml
advertisement
123
123
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0270.xml
advertisement
124
124
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0271.xml
advertisement
125
125
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0272.xml
article
125
125
[no value]
[no value]
The Shipshape Home
Fitting Mortise Locks
[no value]
[no value]
[no value]
To FIT a mortise lock in a door is a problem that confronts at some time or other almost every home worker. It can be done quite easily and with perfect accuracy if the proper method is used. Even for one door it is advisable to make a pattern, as shown in Fig. 1, from a part of the cardboard container in which the lock was packed.
PopularScience_19231001_0103_004_0273.xml
advertisement
126
126
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0274.xml
article
126
126
[no value]
[no value]
Craftsman Lamp for Library Table Is Easily Made
[no value]
[no value]
[no value]
[no value]
SIMPLE in design and not difficult to make, the oak lamp illustrated below is intended for use on a mission or “craftsman” library table. The shade may be of silk or parchment, or constructed of wood and stained glass in the home workshop. The lamp is proportioned for a two-light fixture.
PopularScience_19231001_0103_004_0275.xml
tableOfContents
127
127
[no value]
[no value]
In This Issue
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0276.xml
advertisement
127
127
[no value]
[no value]
RAHE AUTO & TRACTOR SCHOOLS
[no value]
RAHE AUTO & TRACTOR SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0277.xml
advertisement
127
127
[no value]
[no value]
AIR-FRICTION CARBURETOR CO.
[no value]
AIR-FRICTION CARBURETOR CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0278.xml
advertisement
127
127
[no value]
[no value]
THE AMERICAN STATIONERY CO.
[no value]
THE AMERICAN STATIONERY CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0279.xml
advertisement
128
128
[no value]
[no value]
OLIVER OIL-GAS BURNER CO.
[no value]
OLIVER OIL-GAS BURNER CO.
[no value]
[no value]
[no value]
PopularScience_19231001_0103_004_0280.xml