Issue: 19420801

Saturday, August 1, 1942
AUGUST 1942
2
True
141
Wednesday, December 31, 2014

Articles
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POPULAR SCIENCE MONTHLY
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PopularScience_19420801_0141_002_0001.xml
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D. Van Nostrand Co.: MATHEMATICS for Self Study
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D. Van Nostrand Co.
MATHEMATICS for Self Study
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PopularScience_19420801_0141_002_0002.xml
masthead
2
2
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POPULAR SCIENCE MONTHLY
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PopularScience_19420801_0141_002_0003.xml
tableOfContents
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CONTENTS for AUGUST, 1942
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PopularScience_19420801_0141_002_0004.xml
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3
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19420801_0141_002_0005.xml
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4
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Advertisement: PEPSI-COLA
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PEPSI-COLA
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PopularScience_19420801_0141_002_0006.xml
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5
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B. F. Goodrich Company
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B. F. Goodrich Company
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PopularScience_19420801_0141_002_0007.xml
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6
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CHAMPION SPARK PLUG COMPANY: CHAMPION SPARK PLUGS
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CHAMPION SPARK PLUG COMPANY
CHAMPION SPARK PLUGS
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PopularScience_19420801_0141_002_0008.xml
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7
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National Radio Institute
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National Radio Institute
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PopularScience_19420801_0141_002_0009.xml
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8
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THE SIMONIZ COMPANY
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THE SIMONIZ COMPANY
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PopularScience_19420801_0141_002_0010.xml
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9
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COYNE ELECTRICAL SCHOOL
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COYNE ELECTRICAL SCHOOL
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PopularScience_19420801_0141_002_0011.xml
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10
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LASALLE EXTENSION UNIVERSITY
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LASALLE EXTENSION UNIVERSITY
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PopularScience_19420801_0141_002_0012.xml
article
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10
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Coming Next Month —
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“IT ISN’T THE HEAT . . That old bromide is none the less true for being trite. And now scientists, working in a research laboratory to improve clothing for soldiers and war workers, have discovered that it is even truer than we thought. They have found that high humidity not only interferes with the natural cooling system of the human body; on muggy days, our clothing may actually generate considerable amounts of heat by absorbing moisture from the air.
PopularScience_19420801_0141_002_0013.xml
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11
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CHARLES ATLAS
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CHARLES ATLAS
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PopularScience_19420801_0141_002_0014.xml
article
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12
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From The News Editor's Desk
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AERONAUTICAL ENGINEERS have found a versatile new material in “Fairprene,” a cotton cloth treated with synthetic elastic compositions. Better carburetors are made possible by its use in molding a gasoline-resisting diaphragm that will remain flexible in service.
PopularScience_19420801_0141_002_0015.xml
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13
13
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The ROSICRUCIANS: A SECRET METHOD FOR THE MASTERY OF LIFE
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The ROSICRUCIANS
A SECRET METHOD FOR THE MASTERY OF LIFE
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PopularScience_19420801_0141_002_0016.xml
article
14
14,16,18
Readers Say:
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Readers Say:
This Is the Kind of Letter That Makes an Editor Feel Good
Designing Treadle for Lathe Provides a Neat Problem
Talk About Perpetual Motion Is What Runs On Forever
All Right, Don't Ask—Here's What to Do With Eggshells
How Many Triangles Are There In This Drawing?
He Read " Wanted: A Game" —and Invented One
And What Does He Read the Rest of the Month?
If You Can't Use That Can We Know Somebody That Can
Raymond B. Wailes' Articles Made This Reader a Chemistry Fan
Here's a Box That Holds A Simple Little Problem
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I WISH to congratulate POPULAR SCIENCE for successfully creating a new, pleasing editorial style. Informative it has always been. This new manner of presentation makes it doubly attractive. Those clean-cut sketches, photographs, illustrations!
PopularScience_19420801_0141_002_0017.xml
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15
15
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WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY
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WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY
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PopularScience_19420801_0141_002_0018.xml
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16
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MoToR BOOK DEPT.
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MoToR BOOK DEPT.
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PopularScience_19420801_0141_002_0019.xml
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17
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THEO. AUDEL & CO.
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THEO. AUDEL & CO.
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PopularScience_19420801_0141_002_0020.xml
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18
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GENERAL ELECTRIC
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GENERAL ELECTRIC
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PopularScience_19420801_0141_002_0021.xml
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18
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AMERICAN SCHOOL
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AMERICAN SCHOOL
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PopularScience_19420801_0141_002_0022.xml
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19
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Advertisements
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PopularScience_19420801_0141_002_0023.xml
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20
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Advertisements
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PopularScience_19420801_0141_002_0024.xml
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Advertisements
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PopularScience_19420801_0141_002_0025.xml
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Advertisements
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PopularScience_19420801_0141_002_0026.xml
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Advertisements
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PopularScience_19420801_0141_002_0027.xml
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Advertisements
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PopularScience_19420801_0141_002_0028.xml
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25,26,27,28,29,30,31
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POPULAR SCIENCE Classified OPPORTUNITIES
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PopularScience_19420801_0141_002_0029.xml
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31
31
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The Institute of Mentalphysics
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The Institute of Mentalphysics
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PopularScience_19420801_0141_002_0030.xml
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32
32
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R. J. Reynolds Tobacco Company: PRINCE ALBERT
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R. J. Reynolds Tobacco Company
PRINCE ALBERT
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PopularScience_19420801_0141_002_0031.xml
article
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33,34,35
News
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Whirling Smoke Rings to Free Cities of Soot
VORTEX GUNS CAN SHOOT FACTORY GASES SKYWARD
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DR. PHILLIPS THOMAS, research engineer of the Westinghouse Electric & Manufacturing Company, picked up what appeared to be a small copper and brass drum with an aperture some two inches in diameter in its head. By means of a tubular peep sight affixed to the top of the drum, he aimed the aperture at one of a row of lighted candles about ten feet away, and then tapped the back of the drum with a rubber hammer.
PopularScience_19420801_0141_002_0032.xml
article
36
36,37
News
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WAR BLINDERS FOR THE IRON HORSE
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SINCE a lighted train provides a traveling beacon for enemy bombers, the Southern Pacific System has devised pioneer blackout measures for lines paralleling the coast from California to Oregon, and extending inland as far as Nevada. Semicircular hoods now shield giant locomotive headlights, rear-end train marker lights, semaphore lamps, and switch signals from overhead view.
PopularScience_19420801_0141_002_0033.xml
article
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38,39,40,41
News
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Assault Troops Silence Pillboxes with Fire
THE FLAME THROWER HAS PROVED ITSELF A POWEFUL WEAPON FOR CLEARING OUT EMPLACEMENTS THAT GUNS CAN'T CRACK
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COL. ALDEN S. WAITT
THE flame thrower or liquid-fire gun is the most spectacular of all the weapons of war. German flammenwerfer units have been credited with great accomplishments during the drive through the Low Countries and France in 1940. Judging by the numerous reports of its use, both the Germans and Japanese consider it has a very definite place in a carefully organized attack on a fortified position, and is a useful weapon for clearing dugouts, trenches, and emplacements.
PopularScience_19420801_0141_002_0034.xml
article
42
42,43
News
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Brass and Heat Make Cartridge Cases
SHEET-METAL METHOD OF MAKING 20-mm. SHELL CASES
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BRASS plus heat—that is the recipe for the cartridge and shell cases that translate American fighting spirit into language that the Axis powers can understand. In a typical Eastern plant converted to all-out war production, electric furnaces produce millions of pounds of the ammunition alloy each month, by melting together 69 percent of copper and 31 percent of zinc.
PopularScience_19420801_0141_002_0035.xml
article
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44,45
News
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GERM SYRUP FOR VITAMINS
NEW MEDICINE MAY MAKE PLAIN STRAW A HEALTHFUL DIET
HOW CELLULOSE FOOD IS TRANSFORMED BY NATURE AND THE NOVEL GERM SYRUP INTO VITAMIN-B-PRODUCING BACTERIA
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WITH the aid of a natural bacterial syrup, it may be possible for man to get the full complex of B vitamins from a straw diet. This discovery is the result of numerous experiments with laboratory animals which, after being given small doses of the “germ syrup,” were able to digest cellulose materials and manufacture B vitamins in their digestive systems.
PopularScience_19420801_0141_002_0036.xml
article
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46,47,48,49,50,51,52,53,202
News
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The General Drives a Truck
TO "KEEP 'EM ROLLING," BOTH OFFICERS AND MEN ARE LEARNING A BRAND-NEW MILITARY GOSPEL -"PREVENTIVE MAINTENANCE"
HAND SIGNALS CONVEY ORDERS TO ARMY DRIVERS
HOW DRIVERS IN A CONVOY TALK TO ONE ANOTHER
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THE Army is motor minded. At all its principal motor schools it is preaching a new military gospel. It is called “Preventive Maintenance,” and its tenets embody an entirely new attitude toward the motor transport which plays such a vital part in modern warfare.
PopularScience_19420801_0141_002_0037.xml
article
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54,55
News
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INK BLOTS TEST YOUR SKILLS
Fantastic Shapes Help Pick Men for War Jobs
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BY PROJECTING a series of carefully prepared ink blots on a screen and asking spectators to write down what each fantastic shape suggests, psychologists are now able to choose suitable men for mechanized units of the armed forces, and workers for industrial jobs.
PopularScience_19420801_0141_002_0038.xml
article
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Facts and Ideas
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HELMETS..
a Medieval Note in Modern War
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If a knight of old should appear on a modern battlefield, perhaps the only thing that would look familiar to him would be the headgear of the fighting men. The protective helmet, seemingly made obsolete by the development of firearms and the war of movement, has returned to favor in the age of mechanization.
PopularScience_19420801_0141_002_0039.xml
article
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57,58,59,60,61,62,63,214,215
News
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Winged Attackers
AIRBORNE TROOPS PRESENT A NEW TECHNIQUE IN WAR. HERE ARE THE FACTS ABOUT ITS DEVELOPMENT TO DATE
Sky Troopers Land These Three Ways
KEY TO BATTLE MAP ON FOLLOWING PAGES
KEY TO BATTLE MAP ON FOLLOWING PAGES
DEMOLITION
FIRST AID
HOW TO IDENTIFY ENEMY GLIDERS, TUGS, PARACHUTES
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THE greatest military innovation of this war is the use of airborne troops—parachutists, glider troops, and air-landed infantry. Its development to date, no less than its possibilities, tends to outrun the earth-bound imagination. But little about the actual operations of these troops filters through the news censorship to feed our understanding.
PopularScience_19420801_0141_002_0040.xml
article
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News
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SUBCONTRACTING SPEED-UP BRINGS WAR WORK TO MORE SMALL SHOPS
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THE accelerating tempo of war production, with its vast demands for machines and skilled workmen, has resulted in urgent appeals on the part of the War Production Board for increased subcontracting of work to the smaller shops of the country.
PopularScience_19420801_0141_002_0041.xml
article
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65,66,67,68,204
News
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How About Synthetic Rubber?
THIS ARTICLE WILL ANSWER ALL YOUR QUESTIONS ABOUT THE PRODUCTION OF RUBBER FROM PLENTIFUL PETROLEUM
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CARL DREHER
THERE is a rubber shortage but no shortage of the raw materials from which rubber can be made. We wasted those materials before the onset of the present struggle. It was not “economical” to make them into rubber or rubberlike compounds because natural rubber was much cheaper and readily available in the East Indies.
PopularScience_19420801_0141_002_0042.xml
article
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69,70,71,72
News
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Fighting Metal
MERCURY HELPS FIRE GUNS, EXPLODE BOMBS, AND KEEP THE WHEELS OF WAR INDUSTRIES TURNING
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ALDEN P. ARMAGNAC
MERCURY, known in peacetime principally as the silvery liquid in thermometers, has gone to war. It now sets off projectiles, speeds warships, and provides the right kind of electricity for making strategic materials. Among more familiar uses, it predicts the weather, sterilizes a cut finger, turns your oil burner on and off, and helps your dentist fill an aching tooth.
PopularScience_19420801_0141_002_0043.xml
article
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Facts and Ideas
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Periscope Tells Tanker Fireman of Telltale Funnel Smoke
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PEERING into a periscope eyepiece in the boiler room, firemen aboard oil tankers now can see at all times whether smoke is coming from the stacks of their ships. Since enemy submarines easily locate ships by their smoke trails, firemen guard against fueling their fireboxes so that incomplete combustion sends clouds of telltale soot aloft.
PopularScience_19420801_0141_002_0044.xml
article
81
81
Aviation
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Movie Camera in Fighter's Wing Records Aerial Battles
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IF YOU have wondered how they make the newsreel movies that show enemy planes disintegrating in midair from the bullets and shells of Allied war planes, the explanation appears in the picture at the right. The plane is a four-cannon British Hurricane fighter.
PopularScience_19420801_0141_002_0045.xml
article
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82,83,84,85,86,87
News
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Little Poison
That's What Our Men Call the Army's 37-mm. Gun — Versatile, HardHitting, Pint-Size Giant That Is in on Every Scrap
SERVING THE 37-mm. ANTITANK GUN: PRECISION TEAMWORK KEEPS A STREAM OF SHELLS POUNDING THE ENEMY
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J. H. WALKER
WHEN the fighting men and the gun-loving technicians finally get around to talking things over, and the legends and stories of the Second World War get themselves written down, will there be some one weapon they’ll remember and talk of as the special, characteristic gun of this war?
PopularScience_19420801_0141_002_0046.xml
article
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88,89
Here's My Story
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THE CAREER OF JEROME C. HUNSAKER
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PopularScience_19420801_0141_002_0047.xml
article
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90,91,92,93,94
News
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Tagged Atoms
HELP SOLVE THE MYSTERIES OF LIFE
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SCIENTISTS are using a new tool, dramatically called “tagged atoms,” which is enabling them to penetrate deeper and deeper into the mysterious processes of life. With it they can study the metabolism of living organisms in structures as simple as bacteria and as complex as man.
PopularScience_19420801_0141_002_0048.xml
article
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95
Aviation
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Blind Rivets
ARE SET QUICKLY FROM OUTSIDE WITH DOUBLE-ACTION GUN
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RIVETING "blind spots” in the wings and fuselages of airplanes has been simplified with a new-type rivet that can be fastened entirely from the outside. The rivet is tubular and is slipped over a commercial nail which has been "neckeddown,” or weakened slightly, under the head.
PopularScience_19420801_0141_002_0049.xml
article
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96
Aviation
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Forged Cylinder Head Gives Plane Engines More Power
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A FORGED cylinder head for airplane engines, sought for more than a decade by manufacturers of aircooled motors, has been developed by the Wright Aeronautical Corporation. The new head, made of machined aluminum alloy, gives 30 percent better cooling than the type now in use, and is twice as strong.
PopularScience_19420801_0141_002_0050.xml
article
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96
Facts and Ideas
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Big Berthas Do Strip Tease with Jumbo Slide Fasteners
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THE largest and strongest slide fastener ever made, appropriately called the Jumbo, is being manufactured exclusively for America’s fighting forces by the Crown Fastener Company of New York. It was specially designed for use on the covers of such heavy military equipment as bombers, tanks, cannon, and machine guns, and is said to have reduced materially the time necessary to put these weapons into action.
PopularScience_19420801_0141_002_0051.xml
article
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97
Facts and Ideas
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Sandbags
MADE TO MEASURE FOR MODERN WAR
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IMPROVED sandbags, tailored to fit military needs, are being turned out by the hundred million at the factories of America’s largest manufacturer. More compact than old-style bags that took two men to lift, they may be filled with a twist of a shovel and handled with ease.
PopularScience_19420801_0141_002_0052.xml
article
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98,99,100,101,102,103,206
News
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DIAMOND DIES....
Armament's Tremendous Trifles
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ARTHUR GRAHAME
TRIPLE-0 diamond dies are armament's tremendous trifles. Tremendous in their importance to our war effort because without them we would not be able to produce wire of gossamer fineness for the superdelicate instruments which make it possible for our giant bombers to fly accurately on their hazardous missions and for our big guns to hit their marks.
PopularScience_19420801_0141_002_0053.xml
article
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104
NEW SCIENCE IDEAS
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Ray Lamp Sterilizes Bottles To Retard Souring of Milk
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MILK bottles can be made completely sterile just before filling, with a new U-shaped ultraviolet-ray lamp developed by Westinghouse research engineers. Batteries of the lamps would be inserted in the bottles for ten seconds as they pass along the filling conveyor line.
PopularScience_19420801_0141_002_0054.xml
article
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104
NEW SCIENCE IDEAS
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House Sections Roll on Wheels To Speed Building of Homes
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DWELLINGS being built by the Tennessee Valley Authority for temporary housing projects literally roll on their own wheels in complete sections from assembly lines to trucks and thence to prepared foundations. Sections contain one room, finished from floor to roof, and the number of sections per house is determined by the worker's family needs.
PopularScience_19420801_0141_002_0055.xml
article
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NEW SCIENCE IDEAS
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Fire-Retardant Roofing Mastic Resists Incendiary Bombs
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INCENDIARY bombs have little effect on a new fire-retardant mastic that can be applied to any flat-topped roof. The material can be spread on by means of a wooden float to a thickness of three fourths of an inch, dries up in from 12 to 24 hours, and then can be walked upon.
PopularScience_19420801_0141_002_0056.xml
article
105
105
NEW SCIENCE IDEAS
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Douglas Fir's Bark Processed to Obtain Cork Substitute
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DOUGLAS fir trees, which grow abundantly in the high-altitude forests of the Pacific Northwest, are now being considered as a possible source of domestic cork to offset the shortage of that formerly imported. By experimenting with the bark, which is composed of two-thirds cork, two professors at the University of Washington have discovered a method of reclaiming the precious material.
PopularScience_19420801_0141_002_0057.xml
article
106
106
NEW SCIENCE IDEAS
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Ford Plant Starts Producing Synthetic Soybean Wool
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MAKING synthetic wool from soybeans has passed from the experimental to die production stage in the plant of the Ford Motor Company at Dearborn, Mich. The product costs half as much as sheep’s wool, which it closely resembles, and the two are blended for use.
PopularScience_19420801_0141_002_0058.xml
article
107
107
NEW SCIENCE IDEAS
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Trailer-Borne Central Exchange Restores Phone Service
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IF A main-line telephone cable is damaged near Los Angeles, service will be disrupted only until a speedy central-office truck and trailer can get to the scene. Equipped with a switchboard that will handle approximately 400 telephones, the trailer is a complete central exchange within itself.
PopularScience_19420801_0141_002_0059.xml
article
107
107
NEW SCIENCE IDEAS
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Goggles End Glare for Aluminum Welders in Plane Plant
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INJURIOUS glare from aluminum welding is screened by special goggles recently developed by Dr. R. C. Burt, of the Lockheed Aircraft Company, and technicians of the Corning Glass Works. By analyzing the glare caused by the low temperature at which aluminum melts, the high temperature of the hydrogen torch, and the large amount of flux required in aluminum welding, Dr. Burt found a combination of filters that would stop the undesirable rays.
PopularScience_19420801_0141_002_0060.xml
article
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108
Inventions
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new Tools
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UNIVERSAL SLOTTING HEAD. Attached in a few minutes to any milling machine, a demountable slotting head provides double-duty facilities at a minimum of cost. The device serves as a vertical slotter and shaper for cutting keyways, templates, splines, and internal gears, and for slotting out precision blanking dies and molds.
PopularScience_19420801_0141_002_0061.xml
article
109
109
Un-Natural History
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Un-Natural History
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Gus Mager
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PopularScience_19420801_0141_002_0062.xml
article
110
110,111,112,113,114,115,116,117
News
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Sail Making
How Professionals Today Carry on a Craft Centuries Old
HOW IT IS DONE
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WHILE man thrills to sport, the sailboat will hold its own in a modern age, and with it the ancient art of sail making. Today’s yachtsman can buy his canvas from the very firm, now in its fifth generation, that made sails for Nelson’s Victory. Where-ever ships and sails are spoken of, the world over, the name of Ratsey and Lapthorn is known.
PopularScience_19420801_0141_002_0063.xml
article
118
118,119,120,121
Automobiles
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How to Store Your Car
DO THE JOB RIGHT AND IT WILL RUN WHEN YOU WANT IT AGAIN
Check Off These Items As You Put Your Car in Storage
THE SAFE WAY TO JACK UP YOUR CAR
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SCHUYLER VAN DUYNE
DEAD storage is the name for it. Tire shortage alone, it is estimated, may put millions of cars into the moth-ball retirement of dead storage by the summer of 1943. Gasoline problems may well send millions more. This does not mean that you simply lock up your car in the garage.
PopularScience_19420801_0141_002_0064.xml
article
122
122,123
Automobiles
[no value]
USEFUL AUTO HINTS FOR BETTER MOTORING
Think — OF AN IDEA!
[no value]
[no value]
[no value]
1 NEAT REPAIRS to the fabric finish of doors, which usually become worn around the inside handles, giving a shabby appearance to the car interior, can be made by removing the handles and gluing squares of artificial leather over the worn portion of the panel.
PopularScience_19420801_0141_002_0065.xml
article
124
124
Automobiles
[no value]
EMERGENCY WHEEL SAVES FLAT TIRES
[no value]
[no value]
[no value]
[no value]
AN EMERGENCY wheel that gets you to a service station despite a flat tire has been devised by Nicholas Z. Grasso, of Hollis, N. Y. It permits driving without injuring a flat tire, is usable on front or rear wheels, and does not interfere with brake action or power.
PopularScience_19420801_0141_002_0066.xml
article
125
125,126,127,207
Automobiles
[no value]
Gus... figures out a gilhickie
But, Seriously, He Also Tells How Garage Men Can Help Win the War by Sending Old Valves to Uncle Sam. Just Where — and Why — You'll Find Out From Him
GUS SAYS:
[no value]
[no value]
MARTIN BUNN
STOPPING at the Model Garage late one afternoon for a chat with his friend Gus Wilson, Dr. Marvin found him pawing over an accumulation of old valves that he had spread out on his workbench. Gus grinned at his visitor, grunted a greeting, and went on examining the valves.
PopularScience_19420801_0141_002_0067.xml
article
128
128,129,130,131,132
PHOTOGRAPHY
[no value]
HOW TO MAKE Civilian-Defense Movies
TIPS ON SHOOTING DEFENSE MOVIES
[no value]
[no value]
Andrew R. Boone
AMATEUR movie makers from coast to coast can now turn their talents and equipment to the important task of shooting civilian-defense films. There is a widespread need for these pictures. They serve two purposes: they boost morale at a time when most of our activities are turned toward production and training for war, and they instruct civilians in activities that will help preserve property and save lives.
PopularScience_19420801_0141_002_0068.xml
article
132
132
Photography
[no value]
Adjustable Trimming-Board Guide Can Be Set at Any Angle
[no value]
[no value]
[no value]
K. M.
A PIECE of hard composition board and a slotted strip of either metal or the same material will serve as an adjustable guide and gauge on a trimming board. Prints can be cut to uniform sizes or trimmed at any angle. Fasten the strip by substituting a longer screw for one of those holding the measuring rule.
PopularScience_19420801_0141_002_0069.xml
article
133
133
Photography
[no value]
Photo Mounts Readily Made with Cardboard Cutter
[no value]
[no value]
[no value]
[no value]
MAT-BOARD mounts for photos can be cut with either a right-angle or a beveled edge by means of the new device illustrated. A compass-leg attachment enables it to cut out circles from 1 to 14” in diameter (or up to 36" with the use of an extra 18" leg).
PopularScience_19420801_0141_002_0070.xml
article
133
133
Shop Data
PHOTOGRAPHY
DEVELOPERS
PART 1
PART 2
[no value]
[no value]
[no value]
D-72 is a universal developer for film and paper. For film, use one part stock solution, one part water; develop five minutes at 65 deg. F. For contact paper, use one part stock, two parts water; develop 45 seconds at 65 deg. F. For bromide paper, use one part stock, four parts water; develop 1 ½ minutes at 65 deg. F.
PopularScience_19420801_0141_002_0071.xml
article
134
134
Photography
[no value]
Apartment-House Photographers USE COMMUNITY DARKROOMS
[no value]
[no value]
[no value]
[no value]
AMATEUR photographers living in small apartments often find it difficult to do their own developing and printing because of the inconvenience it causes other members of the family if either the kitchen or the bathroom is pressed into service as an improvised darkroom.
PopularScience_19420801_0141_002_0072.xml
article
135
135
Photography
[no value]
FOR CAMERA USERS
[no value]
[no value]
[no value]
[no value]
ELECTRIC DARKROOM TIMERS—one that signals with a buzzer at a predetermined interval for developing film or paper and another that automatically shuts off the exposure lamp at its dial setting—are now available for the amateur photographer who does his own processing.
PopularScience_19420801_0141_002_0073.xml
article
HW128
HW128,HW129,HW130,HW131,HW132,HW133
HOME AND WORKSHOP
[no value]
Cutting Compounds and Lubricants
SPEED SMALL-SHOP WAR WORK
[no value]
[no value]
WALTER E. BURTON
MACHINE-SHOP operators turning to war production have found themselves faced with new and stubborn problems in working the incredibly tough, tool-resistant modern alloys specified for Army and Navy equipment. Those problems are solved by the use of fluids fed to the point of contact between tool and work.
PopularScience_19420801_0141_002_0074.xml
article
HW130
HW130
Shop Data
SHOP PRACTICE
CUTTING COMPOUNDS-GENERAL
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420801_0141_002_0075.xml
article
HW131
HW131
Shop Data
SHOP PRACTICE
BEARING LUBRICANTS
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420801_0141_002_0076.xml
article
HW133
HW133
Shop Data
SHOP PRACTICE
CUTTING COMPOUNDS-STEEL
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420801_0141_002_0077.xml
article
HW134
HW134
Miscellaneous
[no value]
Wastepaper Neatly Bundled in Packing-Box Baler
[no value]
[no value]
[no value]
HERMAN A. BISTRITZ
TO SIMPLIFY the handling of wastepaper collected, the Boy Scouts of Troop 65, Union, N. J., built a simple box baler that makes neat, tight bundles even when collections consist largely of small scraps, circulars, bags, and the like. Any strongly built box will do, but one that is deep in proportion to its width is preferable.
PopularScience_19420801_0141_002_0078.xml
article
HW134
HW134
The Handy Man
[no value]
Easily Applied Finishes Make New Fixtures from Old
[no value]
[no value]
[no value]
W. E. B.
OFTEN it may be found possible to get double or triple service from electrical items such as sockets, switch plates, shade brackets, and similar accessories, which were formerly replaced. One way, if the mechanism is still good, is to recondition old fixtures with modern lacquers or enamels.
PopularScience_19420801_0141_002_0079.xml
article
HW134
HW134
Miscellaneous
[no value]
Dish Cover on Bicycle Seat Keeps It Dry in the Rain
[no value]
[no value]
[no value]
B. N.
A LARGE oiled-silk cover such as those equipped with elastic bands and used on refrigerator dishes may be stretched over the seat of a bicycle to keep it dry when the wheel is parked in a school yard or some other open place during rainy weather.
PopularScience_19420801_0141_002_0080.xml
article
HW135
HW135
Craftwork
[no value]
MODERN Spool Holder
[no value]
[no value]
[no value]
JUAN OLIVER
IN THE busy household, this spool holder fills a real need by keeping a large assortment of sewing threads and needles in one convenient place. Lay out A, B, C, and D by tracing them from point to point on ½" squares just as they are on the smaller squares in the drawing.
PopularScience_19420801_0141_002_0081.xml
article
HW136
HW136,HW137
[no value]
[no value]
IDEAS for HOME OWNERS
[no value]
[no value]
[no value]
[no value]
HERE IS A COLLAPSIBLE WHEELBARROW that takes SO little space for storage that the home gardener with limited room for tools can hang it on the garage wall. Front, sides, legs, wheel, and handles fold flat against the bottom, forming a compact 30" square about the size of the average card table.
PopularScience_19420801_0141_002_0082.xml
article
HW137
HW137
[no value]
[no value]
BLACKOUT ACCESSORIES FOR THE HOME
[no value]
[no value]
[no value]
[no value]
HEAVILY COATED BULBS that provide a safe light that won’t leak out through unprotected windows are now made with a deep orange glow instead of the blue and red formerly turned out by the same manufacturers. They also may be had now as small as 15 watts.
PopularScience_19420801_0141_002_0083.xml
article
HW138
HW138,HW139
Woodworking
[no value]
CORNER WHATNOT OR PLANT STAND
[no value]
[no value]
[no value]
JOSEPH ARONSON
CORNER furniture is much in demand to relieve dull spots in decorative schemes. This stand can easily be made by any home craftsman having moderate skill, and from any material he chooses. A pair of such stands may be used together in a wide window to display plants, or facing each other from the two ends of a double window.
PopularScience_19420801_0141_002_0084.xml
article
HW140
HW140
Outdoors
[no value]
Chest Provides for Storing Equipment Aboard Boat
[no value]
[no value]
[no value]
J. C. MONTGOMERY
A CHEST has advantages over a built-in locker for storage aboard a small boat. It can be removed to lighten the weight of the hull when the boat is to be beached or carried into a boathouse and can be used as a low table or bench as well as a locker. The size of the chest shown is 13" by 22", and the height is 12".
PopularScience_19420801_0141_002_0085.xml
article
HW140
HW140
Outdoors
[no value]
Pipe-and-Concrete Cross Used for Permanent Boat Mooring
[no value]
[no value]
[no value]
H. B. HENRICKSON
THIS heavy boat mooring, proof against being pulled from its bed, is built on a raft, floated into position, and tipped off. Screw four 24" lengths of pipe into a threaded ¾" galvanized cross, put tees on the ends, and cement a common concrete building block over each tee.
PopularScience_19420801_0141_002_0086.xml
article
HW140
HW140
The Handy Man
[no value]
Fireplace Fitted with Socket for Removable Cooking Arm
[no value]
[no value]
[no value]
J. M.
SOMETIMES, especially in cabins and country homes, it is desired to hang a teakettle or a cooking pot in the fireplace. This can be done easily enough if a socket is permanently built into the side brickwork or masonry of the fireplace. A good socket can be made from a long 1" pipe nipple with a 1" coupling screwed on the end.
PopularScience_19420801_0141_002_0087.xml
article
HW141
HW141
Outdoors
[no value]
Rustic Wall Rack Built of Small Logs to Hold Fishing Rods
[no value]
[no value]
[no value]
GRAY WOLF
A RUSTIC fishing-rod rack for a summer cabin or camp can be made from materials in the woods. The top bar A is 3" in diameter and as long as needed. Notch it near each end for the brackets C, and gouge out a notch for each rod. To hold the rods, strips of wood serve as turn buttons.
PopularScience_19420801_0141_002_0088.xml
article
HW141
HW141
Shop Data
FORMULAS
JAVELLE WATER
[no value]
[no value]
[no value]
[no value]
Javelle water, a solution of sodium hypochlorite in water, is a bleaching agent, cleanser, and disinfectant. It is easily made as follows: Add soft water slowly to ¾ lb. chloride of lime in an enameled pan, crushing the lumps to make a smooth paste.
PopularScience_19420801_0141_002_0089.xml
article
HW142
HW142,HW143,HW144,HW145
Home and Workshop
[no value]
Setting Up and Using a Band Saw
[no value]
[no value]
[no value]
EDWIN M. LOVE
FOR rapid cutting of curves in wood, thick or thin, a band saw is the machine to use. Although it is especially adapted to cut outside profiles, inside cuts can also be made by sawing in from the outside, if the work is of such a nature that the entering kerf can be filled and puttied.
PopularScience_19420801_0141_002_0090.xml
article
HW146
HW146,HW147
Home and Workshop
IMPROVE YOUR MARKSMANSHIP
Homemade Clay-Pigeon Trap
Good sport in the field can be had with this simple equipment
[no value]
[no value]
OWEN S. CECIL, JR.
BY CONSTRUCTING this inexpensive clay-pigeon trap, you can improve your marksmanship and give yourself and your sportsmen friends many hours of enjoyment shooting at the flying targets. The trap is designed for the so-called “junior size” clay pigeons.
PopularScience_19420801_0141_002_0091.xml
article
HW148
HW148
Craftwork
[no value]
Pencil Novelties
[no value]
[no value]
[no value]
MYRON FLEISHMAN
CHILDREN are fascinated by these colorful pencil toys. They also make amusing party favors or desk accessories, even for adults. If the craftworker will use his imagination, he can turn out special designs, such as the bristling cat, that are appropriate for Halloween and other festive occasions.
PopularScience_19420801_0141_002_0092.xml
article
HW149
HW149
Woodworking
[no value]
Question Bee
ANSWERS
[no value]
[no value]
[no value]
PLANES were used by the Romans before the fourth century A.D. One type consisted of a wooden core faced with iron on the sides and bottom—forerunner of the modern all-metal plane, of which nine varieties are illustrated below. These include an adjustable rabbet plane with depth gauge, a duplex rabbet plane, a groove plane, a tonguing and grooving plane, and a model maker’s curved-bottom plane.
PopularScience_19420801_0141_002_0093.xml
article
HW150
HW150,HW151
MACHINISTS FOR WAR WORK
[no value]
HEAVY-DUTY Lathe Tool Post
[no value]
[no value]
[no value]
C. W. WOODSON
AN EXTRA tool post is often needed for use in a double tool slide. The one shown in Fig. 1 is designed to withstand the enormous stresses of heavy cutting operations. For maximum toughness, it is best to make the various parts of tool steel, which can be hardened and tempered. The dimensions in the drawings can be changed to suit any lathe.
PopularScience_19420801_0141_002_0094.xml
article
HW151
HW151
New Shop Ideas
[no value]
Set of Special Cutting Tools Forged from Drill Rod
[no value]
[no value]
[no value]
K. R. SIPPLE
AN ASSORTMENT of small, keen blades and one or two holders will be found useful for close work in cutting, carving, scraping, and model making. Those shown are for carving statuettes and finishing art castings. The ½" squares give an idea of their size.
PopularScience_19420801_0141_002_0095.xml
article
HW152
HW152,HW153
New Shop Ideas
[no value]
Electric Welder’s Mask
[no value]
[no value]
[no value]
W. A. CONWAY
MEN who are studying electric welding, as well as mechanics in small shops where an electric welder is available, will find it interesting and profitable to make their own welding masks. The one illustrated, although of simple construction, is of the adjustable type that can be raised off the face when not in use.
PopularScience_19420801_0141_002_0096.xml
article
HW154
HW154,HW155
New Shop Ideas
[no value]
Drill-Chuck Shank AND Milling-Cutter Arbor
[no value]
[no value]
[no value]
[no value]
THE construction of these two useful lathe accessories will furnish excellent practice in taper turning. They are quite similar in most respects, the chief exception being that the drill-chuck shank is tapered as well on the outboard end to receive the drill chuck, while the milling-cutter arbor is turned straight on that end and threaded for a nut to clamp milling cutters in place.
PopularScience_19420801_0141_002_0097.xml
article
HW155
HW155
Shop Data
LATHE WORK
CUTTING THREADS ON TAPERED WORK
[no value]
[no value]
[no value]
[no value]
Two methods of setting the threading tool for cutting screw threads on tapered work are shown in the drawings above. That at the left shows the tool setting when a taper attachment is used; that at the right, the tool setting when the set-over tailstock method is used.
PopularScience_19420801_0141_002_0098.xml
article
HW156
HW156,HW157,HW158,HW159
Home Building
[no value]
The ABC of Stair Building
[no value]
[no value]
[no value]
JOHN MODROCH
IN MAKING extensive repairs to an interior stairway or in building a new one, the use of properly housed, or grooved, stringers is the best insurance for a sturdy and creak-proof job. The accompanying photographs show an interior wall-side stairway stringer housed in the approved manner.
PopularScience_19420801_0141_002_0099.xml
article
HW160
HW160,HW161
New Shop Ideas
[no value]
Radius-Turning Tool from Scrap Materials
[no value]
[no value]
[no value]
BENJAMIN NIELSEN
A TOOL that will turn true concave radii of from ⅜" to 1⅜" with mechanical precision can be made from scrap parts on any screw-cutting lathe. For turning smaller radii, the design might be modified by so filing the shaft on one side that the tool edge may be set closer to the pivot.
PopularScience_19420801_0141_002_0100.xml
article
HW161
HW161
Shop Data
ELECTRCAL
GOLD PLATING
[no value]
[no value]
[no value]
[no value]
Articles to be gold plated, unless of copper or brass, should first be plated with copper. When the gold plating is to be very thin, the color of the deposit is more easily controlled if the copper-plated work is also plated with silver or nickel before plating with gold.
PopularScience_19420801_0141_002_0101.xml
article
HW162
HW162
[no value]
[no value]
Massive Door Bolt Made from Pipe and Rod
[no value]
[no value]
[no value]
[no value]
ASSEMBLED almost entirely from scrap materials, this giant barrel bolt can be used for fastening large doors of garages, shops, warehouses, and factories. The model shown has a barrel made of 1" pipe, but only a few dimensions are indicated on the drawings because the bolt can be as massive as required.
PopularScience_19420801_0141_002_0102.xml
article
HW163
HW163
New Shop Ideas
[no value]
Rubber Cover Keeps Sawdust Out of Scroll-Saw Chuck
[no value]
[no value]
[no value]
R. M. WOODBURY
WHEN the lower chuck of a scroll saw becomes clogged with sawdust, there is danger of stripping the threads or even breaking the parts. This may be avoided by using a tight-fitting chuck cover, made as shown from old inner-tube rubber and slightly smaller than the chuck.
PopularScience_19420801_0141_002_0103.xml
article
HW163
HW163
The Handy Man
[no value]
Tape Holds Nut in Alignment While Bolt Is Started
[no value]
[no value]
[no value]
KENNETH MURRAY
ATTACHING a bolt and nut in a tight, scarcely accessible spot, where the fingers can’t be used to get a hold, is a difficult task. It can be made easier merely by fastening the nut over the bolt hole with a piece of cellulose or adhesive tape. This will hold the nut in place while the bolt is inserted and turned home.
PopularScience_19420801_0141_002_0104.xml
article
HW163
HW163
Shop Data
SHOP METHODS
HOW TO CUT SAFETY GLASS
[no value]
[no value]
[no value]
[no value]
Steps in cutting safety glass like that used on automobiles are as follows: 1. Score the glass along one surface in the usual way with a glass cutter. 2. Lay the glass on a table with the scored line on top and directly above the table edge. 3. Place one hand on each side of the scored line, and press down on the overhanging part until you see or hear the glass crack along the cut.
PopularScience_19420801_0141_002_0105.xml
article
HW164
HW164,HW165
Craftwork
[no value]
Compact Shoe-Polishing Kit
[no value]
[no value]
[no value]
ERNEST R. DEWALT
INSTEAD of keeping shoe-shine supplies in a crowded closet or under the kitchen sink, and perching each foot on the corner of a chair for the morning brush-up, why not build this combination kit and stand ? It will hold two sets of brushes, daubers, polishers, paste, and polishing cloths, and keep them together within arm’s reach while you are shining your shoes.
PopularScience_19420801_0141_002_0106.xml
article
HW165
HW165
Craftwork
[no value]
Decorative Fruit Tray Serves Also as Modern Wall Mirror
[no value]
[no value]
[no value]
[no value]
A MAXIMUM of utility is gained from a minimum of material in this attractive, out-of-the-ordinary mirror-bottom fruit tray. With the handles turned under, it may be hung as a modern wall mirror. Only a 12 ⅜" disk of ⅜" plywood, a felt-backed mirror 9¾" in diameter, and a few escutcheon pins are needed.
PopularScience_19420801_0141_002_0107.xml
article
HW166
HW166,HW167
Craftwork
[no value]
Walnut Wastepaper Container
[no value]
[no value]
[no value]
J. I. SOWERS
WORTHY of the best efforts of any craftsman, this wastepaper receptacle can be built to do double duty in an emergency as a small coffee or end table. The top shown in the small photograph is mortised to fit firmly on the top of the posts and can be lifted off entirely when it is desired to use the piece for its original purpose.
PopularScience_19420801_0141_002_0108.xml
article
HW168
HW168
Outdoors
[no value]
DETACHABLE Rowing Rig
TURNS SURFBOARD INTO RACING BOAT
[no value]
[no value]
JAMES SIMKO
A SURFBOARD can be converted into a speedy one-man racing “shell” by the addition of a detachable rowing rig consisting of a seat, foot rest, and oarlocks. The seat, which is 12" wide, and the foot rest are fastened to opposite ends of a 42" length of ¾" by 8" white pine, as illustrated in the drawing.
PopularScience_19420801_0141_002_0109.xml
article
HW169
HW169
Home Building
[no value]
NEW APPLIANCES to aid in Housekeeping
[no value]
[no value]
[no value]
[no value]
BARBECUING IN THE BROILER is both smart and easy with this new range which has a built-in skewer rack and a skewer long enough for two small chickens or one large piece of meat. The skewer turns freely on a swinging support, holding the meat just below a special broiler burner.
PopularScience_19420801_0141_002_0110.xml
article
HW170
HW170,HW171,HW172,HW173
Craftwork
[no value]
Tin-Plate Craftwork
[no value]
[no value]
[no value]
[no value]
WHAT patience and ingenuity will accomplish with tin plate salvaged from cans is demonstrated in a striking way by the projects shown on these pages—projects that won prizes in a recent contest conducted by POPULAR SCIENCE MONTHLY. They bear concrete testimony to the originality of home craftsmen in creating objects of utility and beauty from commonplace materials.
PopularScience_19420801_0141_002_0111.xml
article
HW174
HW174,HW175,HW176
Craftwork
[no value]
The Modern 300-Incher
[no value]
[no value]
[no value]
FRANK ZAIC
WITH planes shaping history, model making is in the foreground along with other aeronautical activities. Model designing is a compulsory part of pretraining by the Air Cadet League of Canada for prospective recruits of the Royal Canadian Air Force.
PopularScience_19420801_0141_002_0112.xml
article
HW177
HW177,HW178
Miscellaneous
[no value]
Traction Splints and Stretchers
PACIFIC COAST CLUB CONSTRUCTS EMERGENCY FIRST-AID EQUIPMENT
[no value]
[no value]
CHARLES HENRY HUNT
HOME craftsmen who wish to help Uncle Sam in his civilian defense program may well follow the example of the Long Beach, Calif., Homecrafters. This club, one of the many clubs affiliated with the National Homeworkshop Guild, has made several hundred traction splints and stretchers to be placed in Red Cross warehouses for emergency use.
PopularScience_19420801_0141_002_0113.xml
article
HW179
HW179
Miscellaneous
[no value]
Kits
FOR FIRST-AID INSTRUCTORS
[no value]
[no value]
PARK A. SOULE
MEMBERS of the Ashland (Ohio) Home Workshop Club, an affiliate of the National Homeworkshop Guild, have turned their skill to civilian defense by making and presenting to their local Red Cross chapter a number of first-aid kits, as well as splints and other necessities.
PopularScience_19420801_0141_002_0114.xml
article
HW180
HW180,HW181
[no value]
[no value]
KEEPING THE HOME SHIPSHAPE
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420801_0141_002_0115.xml
article
HW182
HW182,HW183
Craftwork
[no value]
Automatic Train Control
[no value]
[no value]
[no value]
DAVID MARSHALL
ON THE grown-up railroads, “A. T. C.” is a common expression. It means automatic train control—an arrangement to shut off steam and release the air, thus applying the brakes, if a locomotive should pass a stop signal unattended. It takes a variety of forms, but usually there is an electrical track device abreast of every signal and a corresponding unit aboard the locomotive.
PopularScience_19420801_0141_002_0116.xml
article
HW184
HW184,HW185,HW186
Radio
[no value]
Priority Receiver
USES NEW-TYPE TUNING UNIT
LIST OF PARTS
[no value]
[no value]
ARTHUR C. MILLER
WITH tuning condensers becoming increasingly scarce, a timely interest attaches to this five-tube superhet which tunes by varying the induction of the antenna and oscillator coils. A core of compressed powdered iron about 5/16" in diameter and 2⅛" long moves in and out of each coil. These iron cores are ganged and regulated by the horizontal tuning dial which, incidentally, is accurately calibrated in kilocycles.
PopularScience_19420801_0141_002_0117.xml
article
HW187
HW187
Radio
[no value]
Servicing Your Radio-PART 4
[no value]
[no value]
[no value]
[no value]
ANY radio cabinets today are in sad need of repair. The old finish has peeled off in places, nicks have been made in the wood, and maybe a few scratches have appeared. Various kits are now on the market which will enable even an inexperienced person to patch up anything from a small scratch to a bad dent.
PopularScience_19420801_0141_002_0118.xml
article
HW188
HW188,HW189
Miscellaneous
[no value]
HOME TESTS EXPLAIN PLANT LIFE
[no value]
[no value]
[no value]
[no value]
GROWING plants, collectively, constitute the biggest chemical factory in the world. The lives of all animals, man included, depend upon them—for they alone can transform simple chemicals of the atmosphere and the earth into the complex substances that we call food.
PopularScience_19420801_0141_002_0119.xml
article
HW190
HW190,HW191,HW192
Miscellaneous
[no value]
How to Put on a Chemical Show
[no value]
[no value]
[no value]
KENNETH M. SWEZEY
WOULD you like to stage a program of chemical magic at your school assembly, at the church entertainment, or in your own home ? Here are some sure-fire stunts around which you can build such a show. “Dancing moth balls” provide an exhibit which you can stand at one end of your magic table, to mystify the spectators throughout the show.
PopularScience_19420801_0141_002_0120.xml
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Eastman Kodak Company
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Eastman Kodak Company
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PopularScience_19420801_0141_002_0121.xml
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202
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HASTINGS MANUFACTURING CO.: Hastings Steel-Vent Piston Rings
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HASTINGS MANUFACTURING CO.
Hastings Steel-Vent Piston Rings
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PopularScience_19420801_0141_002_0122.xml
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203
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Texaco: Marfak 40-point Lubrication Service
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Texaco
Marfak 40-point Lubrication Service
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PopularScience_19420801_0141_002_0123.xml
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Advertisements
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SOCONY-VACUUM
MOBIL HANDY OIL
SOCONY-VACUUM
MOBIL UPPERLUBE
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PopularScience_19420801_0141_002_0124.xml
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205
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THE DELTA MFG. COMPANY
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THE DELTA MFG. COMPANY
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PopularScience_19420801_0141_002_0125.xml
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206
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NICHOLSON FILE CO.: NICHOLSON FILES
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NICHOLSON FILE CO.
NICHOLSON FILES
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PopularScience_19420801_0141_002_0126.xml
article
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Time a Factor in Drunkenness, Laboratory Tests Reveal
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DRUNKENNESS does not depend altogether on what you drank, but also on when you drank it, according to tests conducted by Drs. Henry Newman and Mason Abramson, of the Stanford University Medical School. Their results indicate that standard police tests, based on the concentration of alcohol in the system, may not be accurate criteria of drunken driving.
PopularScience_19420801_0141_002_0127.xml
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SMOOTH-ON MFG. CO.: SMOOTH-ON
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SMOOTH-ON MFG. CO.
SMOOTH-ON
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PopularScience_19420801_0141_002_0128.xml
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Advertisements
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PopularScience_19420801_0141_002_0129.xml
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209
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STANLEY TOOLS: STANLEY CHISELS
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STANLEY TOOLS
STANLEY CHISELS
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PopularScience_19420801_0141_002_0130.xml
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209
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HARLEY-DAVIDSON MOTOR CO.
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HARLEY-DAVIDSON MOTOR CO.
[no value]
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PopularScience_19420801_0141_002_0131.xml
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Advertisement: Popular Science Monthly
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Popular Science Monthly
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PopularScience_19420801_0141_002_0132.xml
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PopularScience_19420801_0141_002_0133.xml
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PopularScience_19420801_0141_002_0134.xml
article
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Lilliputian Models Win Prizes in Our Miniature Contest
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THERE was nothing small about the skill turned up in our recent miniature contest. Many of the tiny entries had such remarkable detail that, except for their size, they might have been taken for their prototypes. Tools predominated—exquisitely made pliers, wrenches, micrometers, calipers, planes, and the like were submitted.
PopularScience_19420801_0141_002_0135.xml
article
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Photographers Asked to List Foreign Travel Pictures
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IF YOU have taken either motion pictures or still photographs anywhere outside the United States, you can do the Government a service by supplying a list of these pictures. A form for this purpose may be obtained by writing to the Amateur Cinema League, 420 Lexington Avenue, New York, N. Y.
PopularScience_19420801_0141_002_0136.xml
article
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Antitarnishing Cloth Keeps Silverware Gleaming
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CHEMICALLY treated cloths that can be wrapped about silverware, silver musical instruments, jewelry, and other tarnishable articles when they are not in use can readily be purchased, but questions are sometimes received as to how they may be prepared at home.
PopularScience_19420801_0141_002_0137.xml
article
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Coloring Drab-Looking Stucco
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D. H.
ANYONE looking for a simple and inexpensive method of coloring drab-looking old stucco might try the following method. The writer used it on a house in Syracuse, N. Y., ten years ago, and the color is as clear and uniform as when first put on. Masons have asked on several occasions how to duplicate the results.
PopularScience_19420801_0141_002_0138.xml
article
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213
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Steel Wool Erases Price Marks
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VERNE F. BUDBILL
IN A LARGE supermarket where every article has to be marked with the price, we tried various methods of removing the marks when it was necessary to make changes. We soon found that the most convenient eraser was a piece of steel wool. It can be used even to remove black drawing ink from paper labels, cans, and cardboard packages.
PopularScience_19420801_0141_002_0139.xml
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THE SHELBY CYCLE CO.
[no value]
THE SHELBY CYCLE CO.
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PopularScience_19420801_0141_002_0140.xml
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214
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PopularScience_19420801_0141_002_0141.xml
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215
215
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The Hygienic Products Co.: Sani-Flush
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The Hygienic Products Co.
Sani-Flush
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PopularScience_19420801_0141_002_0142.xml
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215
215
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Door-Ease Mfrs.: DOOR-EASE STAINLESS STICK LUBRICANT
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Door-Ease Mfrs.
DOOR-EASE STAINLESS STICK LUBRICANT
[no value]
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PopularScience_19420801_0141_002_0143.xml
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216
216
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ATLAS PRESS CO.: DRILL PRESSES
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ATLAS PRESS CO.
DRILL PRESSES
[no value]
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PopularScience_19420801_0141_002_0144.xml
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216
216
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BROWNSCOPE CO.: 100 POWER TELESCOPE LENS KIT
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BROWNSCOPE CO.
100 POWER TELESCOPE LENS KIT
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PopularScience_19420801_0141_002_0145.xml
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216
216
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LEJAY MFG. CO.: ARC-WELDER
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LEJAY MFG. CO.
ARC-WELDER
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PopularScience_19420801_0141_002_0146.xml
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216
216
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Navy Relief Society
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Navy Relief Society
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PopularScience_19420801_0141_002_0147.xml
article
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216
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Magnet Picks Up Steel Wool Left on Finished Surfaces
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WHEN steel wool is used to rub down coats of shellac or other finishing materials, it is almost a toothbrush-and-tweezer job to remove all the small, broken particles from the corners, moldings, or turnings. After brushing out all you can, merely run a strong magnet over the entire surface.
PopularScience_19420801_0141_002_0148.xml
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Lathe Tailstock Tool Bores Holes in Wooden Blanks
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FRED STRICKLAND
HAVING to bore a large number of accurate 2" diameter holes 1" deep in 4" by 4" wooden blanks, I made the tool shown. The blanks are secured to a buffer or waste piece of wood, which is screwed to the faceplate of the lathe, and the desired hole roughed out by hand to within about 1/16" of actual size. The special cutter is then brought up and fed through the blank with the handwheel of the tailstock.
PopularScience_19420801_0141_002_0149.xml
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PopularScience_19420801_0141_002_0150.xml
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Advertisements
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PopularScience_19420801_0141_002_0151.xml
article
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Marking Prices or Numbers on Cast-Iron Articles
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PRICE marks or stock numbers may be marked temporarily on cast-iron or other metal articles with an ordinary lead pencil if a background of white is first applied with a stick of soft chalk.
PopularScience_19420801_0141_002_0152.xml
article
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Restoring the Body of an Old Rug
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WHEN an old rug loses its body and becomes limp, turn it over and give the bottom a good rubbing of casein glue, mixed rather thin. Allow it to dry for twenty-four hours.
PopularScience_19420801_0141_002_0153.xml
article
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218
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Holes Punched in Monel Metal to Make Drilling Easier
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W. B.
MONEL metal is so tough that heat sufficient to burn the end of a drill bit is generated when ordinary metal-drilling methods are used. When you have to drill the sheet metal, punch a small hole through it first, and then use the drill hit to enlarge the hole to size.
PopularScience_19420801_0141_002_0154.xml
article
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Ship-Model Rail Stanchions Easily Formed of Wire
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R. L. H.
STANCHIONS for ship models can be made from stovepipe or soft iron wire. Cut the pieces to length, allowing enough extra for inserting in the deck. One end of each piece is then flattened in a vise ; a hole is punched through with a needle point, and it is enlarged with a drill to the desired size.
PopularScience_19420801_0141_002_0155.xml
article
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Model Pulley Blocks Shaped Quickly by Strip Method
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PAUL H. SMITH
PULLEY blocks of any size for ship models can easily be made in quantity by the method illustrated. Use hardwood such as rock maple or birch. Scribe all four sides of a strip deeply with a marking gauge, being careful not to split the wood. Mark off, drill, and cut apart individual blocks; then round off and shape the edges with a sharp knife.
PopularScience_19420801_0141_002_0156.xml
article
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219
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Catgut Ukelele String Makes Durable Necklace Cord
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K. F. KEITH
A FIVE-CENT ukelele E string of the catgut type makes an excellent cord for restringing a bead or pearl necklace. Thread the parts on the dry catgut, then soak the ends of the latter for two hours between the folds of a damp cloth before tying the knots at the clasp ends.
PopularScience_19420801_0141_002_0157.xml
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INDIAN MOTOCYCLE CO.
[no value]
INDIAN MOTOCYCLE CO.
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PopularScience_19420801_0141_002_0158.xml
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219
219
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Advertisements
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BARRON TOOL CO.
THE BARRON MULTI-PURPOSE ROTARY WOOD PLANER
BARRON TOOL CO.
STEEL TOP AUXILIARY DRILL PRESS TABLE
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[no value]
PopularScience_19420801_0141_002_0159.xml
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219
219
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CLEMSON BROS. INC.: STAR HACK SAW BLADES
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CLEMSON BROS. INC.
STAR HACK SAW BLADES
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PopularScience_19420801_0141_002_0160.xml
article
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220
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Attractive Cabinet Conceals Old-Style Sewing Machine
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B. P. SMITH
OUR sewing machine, although in excellent condition, is of the old-fashioned treadle type, so I made a modern plywood cabinet into which it could be rolled when not in use. The top and the ends are Philippine mahogany plywood, but walnut, gum, or any wood could be used to match other furniture.
PopularScience_19420801_0141_002_0161.xml
article
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Clock and Figure-Four Trap Form Simple Time Release
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W.H.F.
To PULL electric switches, open kennel slides, feed stock at a given time, or set in motion other devices, a time release can be arranged by the use of an old-fashioned alarm clock connected to a trapper’s “figure four” as shown. When the alarm goes off, the spool on the alarm-winding key pulls the string and drags stick A out of the notch in B, whereupon the figure four collapses and releases the weight.
PopularScience_19420801_0141_002_0162.xml
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Advertisements
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PopularScience_19420801_0141_002_0163.xml
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Advertisement: POPULAR SCIENCE
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POPULAR SCIENCE
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PopularScience_19420801_0141_002_0164.xml
article
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222,223
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With the Inventors
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TO SLOW a plane for a landing in restricted space, James G. Ray, of Hatboro, Pa., offers an “air brake” of startlingly novel design. Projecting behind the tail assembly, a propeller-shaped appendage normally is held stationary, with its vanes set in the direction of air flow.
PopularScience_19420801_0141_002_0165.xml
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Advertisements
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PopularScience_19420801_0141_002_0166.xml
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224
224
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Advertisements
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SOUTH BEND LATHE WORKS
16" Toolroom Lathe
SOUTH BEND LATHE WORKS
No. 2-H Turret Lathe
[no value]
[no value]
PopularScience_19420801_0141_002_0167.xml
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225
225
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National Aeronautics Council, Inc.
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National Aeronautics Council, Inc.
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PopularScience_19420801_0141_002_0168.xml
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226
226
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Advertisement: Chesterfields
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Chesterfields
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PopularScience_19420801_0141_002_0169.xml