Issue: 19430201

Monday, February 1, 1943
FEB. 1943
2
True
142
Wednesday, December 31, 2014

Articles
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POPULAR SCIENCE
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PopularScience_19430201_0142_002_0001.xml
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D. Van Nostrand Company, Inc.
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D. Van Nostrand Company, Inc.
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PopularScience_19430201_0142_002_0002.xml
masthead
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2
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POPULAR SCIENCE
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PopularScience_19430201_0142_002_0003.xml
tableOfContents
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2,4,6,10
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CONTENTS for FEBRUARY, 1943
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3
3
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19430201_0142_002_0005.xml
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4
4
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Advertisement: PEPSI:COLA
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PEPSI:COLA
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PopularScience_19430201_0142_002_0006.xml
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5
5
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Atlas Press Company
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Atlas Press Company
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PopularScience_19430201_0142_002_0007.xml
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6
6
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PIPER AIRCRAFT CORPORATION
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PIPER AIRCRAFT CORPORATION
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PopularScience_19430201_0142_002_0008.xml
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7
7
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La Salle Extension University
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La Salle Extension University
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PopularScience_19430201_0142_002_0009.xml
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8
8,9
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J. E. SMITH
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J. E. SMITH
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PopularScience_19430201_0142_002_0010.xml
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10
10
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The ROSICRUCIANS
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The ROSICRUCIANS
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PopularScience_19430201_0142_002_0011.xml
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11
11
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CHARLES ATLAS
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CHARLES ATLAS
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PopularScience_19430201_0142_002_0012.xml
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12
12
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Advertisement
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PopularScience_19430201_0142_002_0013.xml
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13
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Advertisement
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PopularScience_19430201_0142_002_0014.xml
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14
14
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CASEY JONES SCHOOL OF AERONAUTICS
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CASEY JONES SCHOOL OF AERONAUTICS
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PopularScience_19430201_0142_002_0015.xml
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14
14
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C. S. HAMMOND & CO.
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C. S. HAMMOND & CO.
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PopularScience_19430201_0142_002_0016.xml
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14
14
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U. S. School of Music
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U. S. School of Music
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PopularScience_19430201_0142_002_0017.xml
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15
15
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AMERICAN SCHOOL
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AMERICAN SCHOOL
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PopularScience_19430201_0142_002_0018.xml
article
16
16,18,20
Readers say
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Readers say
He's Long on Ideas For Filling Shortages
Film Rental Library Furnishes W.P.B. Movies Free
P. S. M. and Grandpa Start Young Scientist Off on a Career
Start Running Now, Fellows, and We Won't Get Hit
Ask the Commando Who Has Swum One
Maybe the Hard Way Is the Easy Way After All
Things Look Black All Over, Don't They, Air. Shickelgruber?
Patriotism Burns Brightly Even With the Lights Out
So We Americans Are Just Softies, Eh?
One of These Days Gus Is Going to Blow Up
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HAVE been a reader of P. S. M. from the beginning, and have hundreds of copies stored away in my workshop where, from time to time, I get them out and get a lot of good from them. Got no kick coming the way you handle your magazine, only seems of late a little too much on the fighting front and a little slack on the home front.
PopularScience_19430201_0142_002_0019.xml
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17
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Advertisement: POPULAR SCIENCE
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POPULAR SCIENCE
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PopularScience_19430201_0142_002_0020.xml
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18
18
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HARPER
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HARPER
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PopularScience_19430201_0142_002_0021.xml
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19
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INSTITUTE OF APPLIED SCIENCE
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INSTITUTE OF APPLIED SCIENCE
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PopularScience_19430201_0142_002_0022.xml
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20
20
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Prentice-Hall, Inc.
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Prentice-Hall, Inc.
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PopularScience_19430201_0142_002_0023.xml
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20
20
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PRENTICE-HALL, Inc.
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PRENTICE-HALL, Inc.
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PopularScience_19430201_0142_002_0024.xml
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21
21
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Knickerbocker Pub. Co.
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Knickerbocker Pub. Co.
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PopularScience_19430201_0142_002_0025.xml
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22
22
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MoToR BOOK DEPT.
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MoToR BOOK DEPT.
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PopularScience_19430201_0142_002_0026.xml
article
22
22
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Coming Next Month
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MEET THE B-26, fastest and fightingest two-engined medium bomber in the air today. In one of a series of articles on our military aircraft, William S. Friedman sketches the life story of this paradoxical plane which combines the flying qualities of a fighter with the bombtoting capacity of an Army truck.
PopularScience_19430201_0142_002_0027.xml
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23
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METRO PUBLICATIONS
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METRO PUBLICATIONS
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PopularScience_19430201_0142_002_0028.xml
article
24♦
24♦
From the News Editor’s Desk
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From the News Editor’s Desk
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A RECENT SURVEY of the various types of physical defects which have made it necessary for draft boards to reject men for military service has brought to light some rather curious facts about our national health. In New England most rejections are due to bad teeth; in the Northwest to heart trouble; in the Great Lakes region to goiter; in Texas to blindness, and in the Gulf states and the Southeast to drug addiction and alcoholism.
PopularScience_19430201_0142_002_0029.xml
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25
25
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CLARENCE A. O’BRIEN & HARVEY B. JACOBSON
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CLARENCE A. O’BRIEN & HARVEY B. JACOBSON
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PopularScience_19430201_0142_002_0030.xml
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26
26
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Advertisements
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PopularScience_19430201_0142_002_0031.xml
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27
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VICTOR J. EVANS & Co.
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VICTOR J. EVANS & Co.
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PopularScience_19430201_0142_002_0032.xml
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28
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Advertisements
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PopularScience_19430201_0142_002_0033.xml
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29
29
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National Schools
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National Schools
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PopularScience_19430201_0142_002_0034.xml
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30
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Advertisements
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PopularScience_19430201_0142_002_0035.xml
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31
31
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DeFOREST’S TRAINING, INC.
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DeFOREST’S TRAINING, INC.
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PopularScience_19430201_0142_002_0036.xml
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32
32
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Advertisements
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PopularScience_19430201_0142_002_0037.xml
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33
33
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WILCOX & FOLLETT CO.
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WILCOX & FOLLETT CO.
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PopularScience_19430201_0142_002_0038.xml
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34
34
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Advertisements
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PopularScience_19430201_0142_002_0039.xml
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35
35
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CURTISS WRIGHT TECHNICAL INSTITUTE
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CURTISS WRIGHT TECHNICAL INSTITUTE
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PopularScience_19430201_0142_002_0040.xml
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35
35
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NELSON CO.
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NELSON CO.
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PopularScience_19430201_0142_002_0041.xml
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35
35
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McMORROW & BERMAN
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McMORROW & BERMAN
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PopularScience_19430201_0142_002_0042.xml
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36
36
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Advertisements
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PopularScience_19430201_0142_002_0043.xml
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37
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McKNIGHT & McKNIGHT
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McKNIGHT & McKNIGHT
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PopularScience_19430201_0142_002_0044.xml
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37
37
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American School
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American School
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PopularScience_19430201_0142_002_0045.xml
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37
37
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GROSSET & DUNLAP
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GROSSET & DUNLAP
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PopularScience_19430201_0142_002_0046.xml
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38
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CHICAGO TECHNICAL COLLEGE
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CHICAGO TECHNICAL COLLEGE
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PopularScience_19430201_0142_002_0047.xml
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39
39,40,41,42,43,44,45,46
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POPULAR SCIENCE Classified OPPORTUNITIES
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PopularScience_19430201_0142_002_0048.xml
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Advertisements
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Advertisements
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PopularScience_19430201_0142_002_0050.xml
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Westinghouse
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Westinghouse
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PopularScience_19430201_0142_002_0051.xml
article
49
49,50,51,52,53
News
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Nerve Center of the Forces
WASHINGTON'S COLOSSAL PENTAGON BUILDING
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ALDEN P. ARMAGNAC
YOU stop at a reception desk and ask to see the Army officer with whom you have an appointment. Casually the operator calls Extension 73,759. “His office is 2E250,” she tells you. “Please wait for an escort.” You are glad to have a guide. You are in the largest building in the world, the Army's newly completed Pentagon Building at Arlington, Va.
PopularScience_19430201_0142_002_0052.xml
article
54
54
Inventions
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Knife Puts Fish on Scales
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FISH can be weighed as well as cleaned and scaled with a new all-around fish knife invented by J. M. Robinson, of New York City. This knife, which he calls a Fishweigh knife, looks like an ordinary pocketknife when it is closed; but opened, it discloses two blades hinged end to end—one for cleaning fish, the other for scaling them.
PopularScience_19430201_0142_002_0053.xml
article
55
55
Aviation
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Exploding COCKPIT
SHOOTS PILOT FROM STRICKEN AIRPLANE
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TRAPPED in the cockpit of his burning or falling plane, a pilot of the new German Focke-Wulf 190 fighter can instantly blow off the transparent cover and throw himself clear of the doomed ship. The “exploding” cockpit feature, found to be part of the equipment of a plane recently forced down on British soil, is operated by a handle mounted on the instrument panel.
PopularScience_19430201_0142_002_0054.xml
article
56
56,57
News
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Storing Gas One Mile Down
PUMPED BACK INTO THE GROUND THROUGH OLD OIL WELLS, FUEL WILL SUPPLY WAR INDUSTRIES
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To KEEP war industries fueled during periods of extreme cold and heavy loads, California authorities are storing more than a mile underground three billion cubic feet of natural gas—enough to keep a million homes warm for a month. Collected from a score of fields along a 200-mile front in Southern California, the gas will be compressed and forced down five oil wells in a 240-acre area of the Playa del Rey field, near Venice.
PopularScience_19430201_0142_002_0055.xml
article
58
58,59,60,61,62,63
News
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Chemists Fight on 1,000 Fronts
ON BATTLE LINES OF TEST-TUBE SOLDIERS
LAND, SEA, AND SKY, AS WELL AS IN FACTORY AND HOME, FURNISH THE MATERIALS OF VICTORY AND A BETTER LIFE
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ALFRED H. SINKS
LIKE you and me and 130,000,000 others, the American chemist is in this war to win. But unlike most of us, he’s fighting it on a thousand fronts at once. He sees that Marines pushing forward in the South Pacific have more punch in their ammunition, that our planes have the extra snap and drive of high-octane gasoline, that there is TNT in those 8,000-pound bombs that drop on German war plants.
PopularScience_19430201_0142_002_0056.xml
article
64
64,65
News
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HOW TO KEEP YOUR HANDS FIT
TEN WAYS TO KEEP YOUR SKIN FIT FOR YOUR JOB
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WHAT may start as a little skin rash on a worker’s hands may be enough to cripple an entire production line. As much as 70 percent of all industrial diseases on our war-materials front may be due to skin ailments. If a worker’s hands are irritated or if they swell, he can no longer do precision work; and what this means in slowing plane, tank, or armament manufacture you can readily imagine.
PopularScience_19430201_0142_002_0057.xml
article
66
66
Automobiles
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Room to Park—Under the Ground
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Retail business men in downtown San Francisco, Calif., have solved their customers' parking headaches, eased traffic congestion, and guarded against decentralization with an 1,800-car parking lot four stories below ground under centrally located Union Square. Cars are driven down ramps by attendants who return on continuous-belt elevators.
PopularScience_19430201_0142_002_0058.xml
article
67
67
Aviation
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Mosquito Bomber
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BRITAIN'S MOSQUITO BOMBER, a twin-engined plane which is also used for reconnaissance, and which because of its speed has had unusual success in getting safely in and out of Germany on raids, has now been revealed as being constructed mainly of wood.
PopularScience_19430201_0142_002_0059.xml
article
67
67
Aviation
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American Contra-Prop
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SIX-BLADED, DUAL-ROTATION propellers, designed primarily for planes equipped with 2,000-hp. engines, have been developed by the Curtiss-Wright Corporation, and are being delivered to the U. S. Army for installation on high-altitude fighting planes.
PopularScience_19430201_0142_002_0060.xml
article
67
67
Aviation
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New Stratosphere Masks
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STRATOSPHERE MASKS worn by pilots of Kelly Field are lined with woollike asbestos to protect wearers from both cold and fire. To prevent the noninflammable lens (which might be in one piece, or in two pieces, one for each eye) from becoming fogged by a pilot’s breath, the eye space is enclosed with a rubberized cushion.
PopularScience_19430201_0142_002_0061.xml
article
68
68,69,70,71,72,72A,72B,72C,72D,72E,72F,73,74,75,76,233,235
News
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OUR NAVY STRIKES FROM THE SKY
HERE ARE THE COMBAT PLANES THAT SUPPORT OUR SEA POWER
COMMON CHARACTERISTICS OF CARRIER-BASED PLANES
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WILLIAM S. FRIEDMAN
AS THE war wears into its third year, no doubt remains that the air arm holds the margin between victory and defeat. At sea, as the reports of naval action roll in, it becomes increasingly apparent that the great naval vessels that once were the backbone of naval strategy have been transformed by the shifting pattern of events into bases and auxiliaries for aircraft.
PopularScience_19430201_0142_002_0062.xml
article
77
77
Aviation
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Air Cargo Hold-Down
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AIR FREIGHT of any kind is held firmly in cargo planes by hold-down equipment designed by the Evans Products Company. One method, illustrated above, uses longitudinal members permanently attached to the roof and floor of the plane. These are supplemented by adjustable posts to which transverse members are anchored.
PopularScience_19430201_0142_002_0063.xml
article
77
77
Inventions
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Flexible Heating Element
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HEATING ELEMENTS insulated with braided fiber glass are now available in any length. Highly flexible, the material can be packed snugly about parts to be heated, or jammed into tight spots. It will also serve for flexible power resistors.
PopularScience_19430201_0142_002_0064.xml
article
78
78
Facts and Ideas
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Pistol-Grip Camera Shoots Battle Scenes
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DESIGNED for filming land, sea, and air battles, this combat movie camera is equipped with a gunstock support and two-handed pistol grip. It is aimed and handled like a submachine gun, and although it can be set up on a tripod, it is intended for hand-held operation.
PopularScience_19430201_0142_002_0065.xml
article
79
79
Facts and Ideas
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Mounts for the Navy’s 1.1 AA Guns
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ASSEMBLY-LINE methods applied to the manufacture of mounts for 1.1-inch Navy rapid-fire antiaircraft guns resulted in a saving of about 6,400 man-hours of labor and about $15,000 in cost for each mount, it was announced recently on the completion of a Navy contract by the Westinghouse Electric Elevator Company.
PopularScience_19430201_0142_002_0066.xml
article
80
80
Inventions
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Mechanical Cotton Picker
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MECHANICAL COTTON PICKERS may prove an important factor in relieving wartime labor shortages. After 40 years of experimenting, the International Harvester Company announces that it has perfected a machine which will pick cotton profitably under conditions prevailing in the principal cotton-growing areas of the United States.
PopularScience_19430201_0142_002_0067.xml
article
80
80
Inventions
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Almost-Unbreakable Pencil
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ALMOST UNBREAKABLE PENCILS are said to be the result of a new manufacturing process which achieves a complete fusion between the graphite “lead” and the wood in which it is incased. This fusion makes the strength of the point dependent upon the entire unit leverage, rather than upon only the combined strength of the lead and the thin shell of wood that surrounds it when the pencil is sharpened.
PopularScience_19430201_0142_002_0068.xml
article
81
81
Inventions
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Single-Sheathed Freight Car
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PRESSURE-TREATED LUMBER is now being used in freight cars to permit single-sheathed construction. With this type of wood, delivered prefabricated in another departure from custom, adequate protection is given to cargoes, the additional strength of outside sheathing is found unnecessary, and the material saved is considerable.
PopularScience_19430201_0142_002_0069.xml
article
81
81
Aviation
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Roller Repairs Airports
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AIRPORT REPAIRS and road patches can be compacted quickly with this new highway roller equipped with pneumatictired wheels for trailing behind a truck at any speed. Transition from trailer to roller is made at the scene of repair without jacking, a hydraulic lift being used to lower the main roller to the roadway and raise the trailer wheels out of the way.
PopularScience_19430201_0142_002_0070.xml
article
82
82,83
News
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Army Shows the Spotter What to See
AIRCRAFT DESIGNS EASY TO IDENTIFY WHEN BROKEN DOWN INTO MAIN PARTS
AIRCRAFT RECOGNITION IS EASY WITH THE FOUR-STRIP WEFT SYSTEM
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KNOWN as “WEFT” from the initials of the words “wing,” “engine,” “fuselage,” and “tail,” this system of identifying planes in the air simplifies a problem that had grown complicated with the development of a vast number of different aircraft designs.
PopularScience_19430201_0142_002_0071.xml
article
84
84,85,86,87,222
News
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Nickels Without Nickel
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WITH the new nickel-less Jefferson nickel, the Bureau of the Mint has now solved the problem of how to conserve that metal so precious to war needs. In 1941, 500 tons of nickel were used in producing five-cent pieces which were required by law to contain 25 percent nickel and 75 percent copper.
PopularScience_19430201_0142_002_0072.xml
article
88
88,89,90,91,92,93,94,95,96,97,224,226
News
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Blueprint For Invasion
Careful Preparation and Long, Elaborate Training Lie Behind a Landing on a Fortified Enemy Coast
SEA, LAND, AND AIR FORCES JOIN IN INVASION PATTERN
Infantrymen
Learn the Tricks of Amphibious War
NOTICE TO SUBSCRIBERS
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CARL DREHER
SOMEWHERE off a hostile coast, in the damp cold an hour or two before daybreak, infantrymen clad in heavy waterproof suits take their places in shallow-draft assault boats. They may embark from an island or other land base within striking distance of their objective, or from transports screened by a naval force.
PopularScience_19430201_0142_002_0073.xml
article
98
98
Aviation
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Throw-Away Planes Are Convoy Escort
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PopularScience_19430201_0142_002_0074.xml
article
99
99,100,101,102,103,232
News
[no value]
Six-Months Miracle
How U. S. Army Engineers Conquered Bogs and Forests in One of the Greatest Road-Building Jobs of Our Day
[no value]
[no value]
ALDEN P. ARMAGNAC
ALL this winter, thousands of trucks will roll to the far north with soldiers and supplies. The first of them already have passed over a newly huilt highway between the United States and Alaska—a long-dreamed-of project ranking among the greatest engineering feats of modern times.
PopularScience_19430201_0142_002_0075.xml
article
104
104
Un-Natural History
[no value]
Un-Natural History
[no value]
[no value]
[no value]
Gus Mager
[no value]
PopularScience_19430201_0142_002_0076.xml
article
105
105,106,107
News
[no value]
Chemical "Nose" Sniffs Poison Gas
REAGENT KIT FOR ANALYZING POISON GASES
COMMON WAR GASES AND THEIR PROPERTIES
[no value]
[no value]
HARRY WALTON
GAS sentries of the Stamford, Conn., Auxiliary Police need not depend upon their trained noses alone to detect poison gases. These sentries are members of the American Chemical Society who, according to their battalion gas officer, Lieut.
PopularScience_19430201_0142_002_0077.xml
article
108
108,109,110,111,112,113
News
[no value]
Saving a Ship for Uncle Sam
Salvage Engineers Are Using All Their Tricks to Give Us Back the Mammoth Normandie
[no value]
[no value]
BERNARD WOLFE
CONFRONTED by the biggest ship-salvage job in marine history, the experts assigned to raise the former French liner Normandie from the mud of New York’s North River had to start literally at the bottom by setting up their own school for divers.
PopularScience_19430201_0142_002_0078.xml
article
114
114,115,116,117,118,119
News
[no value]
Brush Up on Brushes
FROM RAW BRISTLE TO FINISHED BRUSH IS THE WORK OF EXPERTS
A CROSS SECTION OF A TWO-PLUG FLAT BRUSH
[no value]
[no value]
ALBERT Q. MAISEL
GOOD news for painters is the announcement that Du Pont chemists have succeeded in producing a synthetic Nylon paintbrush bristle with the taper, resiliency, and toughness of the natural material. Natural bristles are normally imported from China, India, France, Poland, or Russia.
PopularScience_19430201_0142_002_0079.xml
article
120
120
new Tools
[no value]
Rivet-Timing Attachment
[no value]
[no value]
[no value]
[no value]
A RIVET TIMER which can be attached to a portable riveting gun, and which works either automatically or manually, now insures rivet bucktails of uniform height and diameter, and avoids the need of rehitting or the possibility of overhitting.
PopularScience_19430201_0142_002_0080.xml
article
120
120
new Tools
[no value]
Vise Has Quick Action
[no value]
[no value]
[no value]
[no value]
THIS QUICK-ACTION VISE, which slides open and shut like a drawer, can be locked at any position with only two turns of the handle. When the pawl is engaged on the steel rack, as shown, the vise is ready to grip. Two handle turns to the left disengage the pawl and permit free opening and closing of the jaws.
PopularScience_19430201_0142_002_0081.xml
article
120
120
new Tools
[no value]
Hydraulic Pipe Bender
[no value]
[no value]
[no value]
[no value]
PIPE BENDS up to 180 degrees can be made without heating or filling with this portable hydraulic bender. Equipped with seven sizes of formers, it can handle both steel and iron pipe, or solid bars of mild steel, from ⅜ to two inches. Consisting of a pipe-holder frame, a hydraulic jack, and a former which is attached to the plunger of the jack, the bender weighs 98 pounds, is 32 inches in length, and can be set up in less than a minute without need of bolting.
PopularScience_19430201_0142_002_0082.xml
article
120
120
new Tools
[no value]
Level Built Into Pencil
[no value]
[no value]
[no value]
[no value]
LEVEL GAUGE built into a pencil is one of the latest time-saving gadgets for defense workers, home mechanics, carpenters, etc. The pencil is just as compact and operates in precisely the same manner as any other mechanical pencil.
PopularScience_19430201_0142_002_0083.xml
article
121
121
Facts and Ideas
[no value]
Science Discovers How Germs Die
ELECTRON MICROSCOPE OPENS NEW RESEARCH
[no value]
[no value]
[no value]
HOW germ-killing agents, such as silver nitrate and bichloride of mercury, act on the individual disease germs is revealed for the first time in a new triumph of the powerful RCA electron microscope. Dr. Stuart Mudd, of the University of Pennsylvania, and Dr. Thomas F. Anderson, of the RCA Manufacturing Company, collaborating in studies along this line, find that silver nitrate completely destroys the flagella, or propellers, of the typhoid-fever germ, as shown in the lower electron micrograph at the right, while lead acetate —shown in the upper electron micrograph—darkens the flagella but does not destroy them.
PopularScience_19430201_0142_002_0084.xml
article
122
122
WAR IDEAS
[no value]
Flying Aircraft Carriers
[no value]
[no value]
[no value]
[no value]
FLYING AIRCRAFT CARRIERS and huge troop and cargo air transports with a range of 8,000 miles have been designed by Horace Chapman Young and Eric Langlands as combinations of airship and airplane. The Airwing, as the craft is called, is built as a flying wing with space within its single-wing body for helium, fuel, crew, and pay load and tunnels in which propellers or blowers operate.
PopularScience_19430201_0142_002_0085.xml
article
123
123
WAR IDEAS
[no value]
Two-Man Paratanks
[no value]
[no value]
[no value]
[no value]
TWO-MAN PARATANKS small enough to be transported in cargo planes are proposed by Martial and Scull, industrial designers, to provide a quick means of landing mechanized equipment behind enemy lines. The all-welded tank at right is triangular in shape with two forward wheels and a track-type runner in the rear.
PopularScience_19430201_0142_002_0086.xml
article
123
123
WAR IDEAS
[no value]
Extra Folding Wings
[no value]
[no value]
[no value]
[no value]
EXTRA FOLDING WINGS on a plane proposed by Byron T. Wall, of Raymond, Alta., Canada, increase the wing area and drag, allowing it to take off and land at the low speed of a biplane and yet retain the longer flight range and high speed of a monoplane when it is in the air.
PopularScience_19430201_0142_002_0087.xml
article
124
124
Automobiles
[no value]
Wooden Truck Bodies
[no value]
[no value]
[no value]
[no value]
WOODEN BODIES are being built on all new Army trucks, making use of materials that are plentiful and conserving metal for more vital purposes. Body longitudinal sills, cross members, side and front panels, and tailboards are all of wood bolted together in the new construction.
PopularScience_19430201_0142_002_0088.xml
article
124
124
Automobiles
[no value]
Device Hones Razor Blades
[no value]
[no value]
[no value]
[no value]
DOUBLE-EDGED RAZOR BLADES are sharpened in a few seconds on a new hone marketed by the Marlin Firearms Co., shown above. The stone is curved at the proper angle to hone the cutting edge and is provided with a metal clip that holds the blade in the correct position and applies all the pressure required during strokes.
PopularScience_19430201_0142_002_0089.xml
article
125
125
Facts and Ideas
[no value]
Movable Walls Built of Glass
[no value]
[no value]
[no value]
[no value]
NEW glass-block partitions, held together with ridged wooden strips instead of mortar, are as easy to take down and move as they are to install. This development will make it possible to change layouts of interiors of homes and office and factory buildings almost at will.
PopularScience_19430201_0142_002_0090.xml
article
126
126,127,128,129,130,131,132,133,228,230
News
[no value]
How Medical Soldiers meet the Blitzkieg
HOW WOUNDED ARE REMOVED FROM A TYPICAL BATTLE AREA
MECHANIZED FIGHTING ADDS TO TRANSPORTATION PROBLEM
KEY TO PLAN
HOSPITAL ON RAILS EVACUATES WOUNDED FROM CONGESTED AREAS
1918 THIS IS THE MEDICAL MAN OF WORLD WAR 1 ...
... AND THIS IS HIS COUNTERPART OF TODAY 1943
[no value]
[no value]
WILLIAM W. MORRIS
CARL DREHER
MECHANIZED warfare has brought new problems to the Army’s Medical Department. Even on a relatively static battle front, like those of the first World War, the task of aiding and bringing back the wounded is a gigantic one. In fluid blitzkrieg fighting, with the tide of battle rolling rapidly over miles of countryside, the medical men must wage a blitzkrieg of their own—in reverse.
PopularScience_19430201_0142_002_0091.xml
article
134
134,135,136,137,138
AUTOS
[no value]
Give your Cooling System a break
As a Vital Part of the Car, It Deserves Good Care. Neglect It and It Will Burn Your Engine—and a Hole in Your Wallet
These Are the Danger Spots in Your Cooling System ... ... and the Troubles That Can Seriously Injure Your Car
[no value]
[no value]
RALPH ROGERS
OUTSIDE of keeping oil in the engine, and grease in the transmission and rear axle, the most important service consideration on an automobile is the care of the cooling system. An engine would not run very long without oil, for without the protective oil film to keep moving parts separated, the metal-to-metal contact would quickly develop high temperatures and the engine would “seize,” resulting in an expensive repair job.
PopularScience_19430201_0142_002_0092.xml
article
139
139
Automobiles
[no value]
TUBELESS TIRES ...
Oklahoma Motorists Ride on Inflated Casings
[no value]
[no value]
[no value]
IF YOU have four tires but are short an inner tube, you can drive without it, says J. B. McGay, a Tulsa, Okla., manufacturer, who has worked out a method of mounting ordinary casings without tubes so that they can be inflated and run at normal speeds.
PopularScience_19430201_0142_002_0093.xml
article
140
140
Automobiles
[no value]
Auto Ideas
[no value]
[no value]
[no value]
[no value]
WAR TIRES made almost exclusively from reclaimed rubber by Goodyear are identified by a “war tire” seal. Shown at left being prepared for curing, and at right being taken from the vulcanizing mold, these new tires should yield as much as 10,000 miles if used carefully.
PopularScience_19430201_0142_002_0094.xml
article
141
141,142,143
Automobiles
[no value]
Gus give the professor a lesson
When a Plug Went Bad in Scruggs' Car, the Sparks Flew. But the Mechanic of the Model Garage Fixed Things Up
GUS SAYS:
[no value]
[no value]
MARTIN BUNN
FOR quite a few years, Professor Hiram Scruggs, the principal of our high school, has had—and richly deserved— the reputation of being the biggest grouch in town. When he drove into the Model Garage the other afternoon, Gus Wilson’s ears told him that the professor’s engine was missing.
PopularScience_19430201_0142_002_0095.xml
article
144
144,145,146,147
PHOTOGRAPHY
[no value]
EXPLORE YOUR HOME FOR Pictures in Pattern
[no value]
[no value]
[no value]
A. L. (WHITEY) SCHAFER
THE man behind the lens, whether he be a professional or an amateur, sees life in terms of pictures. Since many of us are going to spend more time at home from now on, more of our pictures will have home settings. Why not make the best of the situation by getting interesting home patterns into your photographs?
PopularScience_19430201_0142_002_0096.xml
article
148
148
Photography
[no value]
Portable Wooden Floodlight Standard Will Support Eight Reflectors
[no value]
[no value]
[no value]
CLARENCE N. ALDRICH
THIS standard provides support for as many as eight clamp-on flood lamps, and can easily be made at home of noncritical materials. All the parts are of ¾" stock. Blocks are fitted to the ends of one foot, which is made 3" wide at the center and notched on the straight edge.
PopularScience_19430201_0142_002_0097.xml
article
148
148
[no value]
[no value]
Cheap Bottle-Cap Remover Saves Time in Darkroom
[no value]
[no value]
[no value]
C. H. COLES
CAPS screwed tightly on bottles of photographic solutions to prevent evaporation are difficult to remove by hand. This simple gadget, available at the five-and-ten, saves time and tempers in the darkroom and keeps caps in excellent condition for their continued use.
PopularScience_19430201_0142_002_0098.xml
article
148
148
Photography
[no value]
Pointer Cemented to Timer Hand Increases Its Visibility
[no value]
[no value]
[no value]
CLIFFORD LEESTMA
IF YOU find it hard to see the hand of your interval timer in the darkroom, try cementing a triangular piece of black paper to it as shown in the photograph below. Such a pointer will also make the second hand of an electric clock or any other timing device much easier to see if it is used in the darkroom to measure intervals
PopularScience_19430201_0142_002_0099.xml
article
149
149
FOR CAMERA USERS
[no value]
Handy New Exposure Guide
[no value]
[no value]
[no value]
[no value]
A SNAPSHOT POCKET FOLDER now on the market will help preserve loose prints that are carried in pockets and handbags. Holding eight prints of sizes up to and including 2½" by 4¼", with a separate sheath for each print, the folder is made of durable blue card stock with lettering in yellow.
PopularScience_19430201_0142_002_0100.xml
article
149
149
FOR CAMERA USERS
[no value]
Reducing View-Finder Glare
[no value]
[no value]
[no value]
[no value]
USERS of twin-lens reflex-type cameras, who place an aluminum lens shade over the lower lens, are often troubled by fogging of the image on the ground glass, due to reflections from the polished outer surface of the metal lens shade. This can be prevented simply by giving the lens shade a coat of dull black paint all over the outside.
PopularScience_19430201_0142_002_0101.xml
article
150
150
Photography
[no value]
Inexpensive Microphone Boom Built Entirely of Wood
[no value]
[no value]
[no value]
C. A.
CAMERA clubs making civilian-defense sound movies, as well as many other amateurs, will find ready use for this microphone boom, which was originally designed for the Long Beach, Calif., Cinema Club. Aside from a few bolts, hinges, screws, and knobs, it can be built entirely of wood, a noncritical material.
PopularScience_19430201_0142_002_0102.xml
article
150
150
Photography
[no value]
Unusual Action Movie Titles Formed with Salt or Sugar Give Realistic Effect of Drifting Snowflakes
[no value]
[no value]
[no value]
MARION SCHWERMAN
UNUSUAL action titles for winter color movies can be filmed as follows : Put a lamp socket with a photoflood bulb inside a small wooden box open at the top. Lay a sheet of glass over the top, and on the glass place a sheet of blue cellulose film. With either salt or sugar form the title desired.
PopularScience_19430201_0142_002_0103.xml
article
151
151
Photography
[no value]
Tin-Plate Reflector Lights Enlarger Stop Markings
[no value]
[no value]
[no value]
JAMES DEITCH
MANY photographers find it hard to read the diaphragm stop numbers on the lens barrel of an enlarger in the feeble light of a darkroom lamp. A reflector cut from a piece of 2" by 5" tin-can metal and bent as shown solves the problem. When it is held under the lens, light from the enlarger itself is reflected around the barrel to the flange bearing these diaphragm stop numBERS.
PopularScience_19430201_0142_002_0104.xml
article
151
151
Photography
[no value]
Film Containers on Wall Form Handy Negative Racks
[no value]
[no value]
[no value]
L. H.
THE inner cardboard containers of certain commonly used cut-film cartons make handy holders for negatives, enlarger masks, or memoranda when tacked to the wall of the darkroom. They separate negatives that are to be enlarged, or those printed from those still to be printed.
PopularScience_19430201_0142_002_0105.xml
article
151
151
Photography
[no value]
Slipping Tank Reel Repaired with Cellulose Cement
[no value]
[no value]
[no value]
GEORGE S. GREENE
SHOULD the collars on the two halves of an adjustable developing-tank reel become so worn that they are no longer a snap fit and the reel will not remain set at the desired width, apply a thin film of cellulose or model-airplane cement to the inside of the outer collar.
PopularScience_19430201_0142_002_0106.xml
article
151
151
[no value]
[no value]
Tape Allows Exact Adjustment of Tripod Legs for Height
[no value]
[no value]
[no value]
W. KIRK
MOST metal tripods do not allow for adjusting the legs to exact height. To make such adjustment, as for copying and certain other types of work, pull out the sections to the necessary height, then wrap a short piece of adhesive tape around the unsecured section of each leg.
PopularScience_19430201_0142_002_0107.xml
article
152
152
[no value]
[no value]
HOME AND WORKSHOP
[no value]
[no value]
[no value]
[no value]
Since early in 1941, Popular Science has been privileged to offer a series of woodworking articles by Joseph Aronson, of New York, who specializes in interior architecture and furniture design. In his workshop-studio have been created the furnishings for some of the finest modern interiors in the country.
PopularScience_19430201_0142_002_0108.xml
article
HW513
HW513,HW514
Home and Workshop
[no value]
Dressing Table and Bench
LIST OF MATERIALS FOR MODERN DRESSING TABLE AND BENCH
[no value]
[no value]
JOSEPH ARONSON
OF MODERN design with smple lines, this dressing table has a charm and delicacy that will make it a most acceptable gift. Begin with the four legs, which are identical, by first cutting the two adjoining tapered sections of each, then rounding the outer corner on a ⅜" radius.
PopularScience_19430201_0142_002_0109.xml
article
HW514
HW514
Shop Data
[no value]
REMOVING LOWER WINDOW SASH
[no value]
[no value]
[no value]
[no value]
When a weight cord breaks, the stop strip or molding on that side must be taken off. If screwed on, remove the screws and spring the strip outward at the center to prevent the ends from marring the finish at top and bottom. If paint holds it, place a block against the inner edge and tap with a hammer.
PopularScience_19430201_0142_002_0110.xml
article
HW515
HW515
Craftwork
[no value]
Honey-Jar Holder Turned from Wood Resembles Old-Fashioned Beehive
[no value]
[no value]
[no value]
ELMA WALTNER
APPROPRIATELY enough, this honey-jar holder takes its shape from the old-fashioned straw beehive. Glue up two turning blocks from maple rings. Mount them both on waste-wood faceplates, and rough off the outside of each. Next, hollow out the inside, remove the backing from the top part, fit the two halves together, and mount them between centers in the lathe.
PopularScience_19430201_0142_002_0111.xml
article
HW515
HW515
Woodworking
[no value]
Card Deck Forms Sanding Block for Irregular Surfaces
[no value]
[no value]
[no value]
W. S.
WHEN sanding grooved surfaces or irregular edges, you can often do the job more easily by using an ordinary deck of playing cards as a sanding block. Folded around them, the sandpaper adjusts itself to the contour of the wood, reaching every surface.
PopularScience_19430201_0142_002_0112.xml
article
HW515
HW515
The Handy Man
[no value]
Croquet Mallet Used in Shop
[no value]
[no value]
[no value]
R. WOODBURY
IT IS usually the stem that breaks on a croquet mallet, but the head will make a serviceable shop mallet if the handle is trimmed short below the break, or replaced with a new one about 9" long. One or both ends of the head can be faced with leather, felt, or other protective material, if you so desire.
PopularScience_19430201_0142_002_0113.xml
article
HW516
HW516,HW517
Woodworking
[no value]
Fire-Bucket Cabinet for the Home
This easily constructed a full-sized pail and useful piece of parlor
DOOR-PANEL DETAIL
"TIN-CAN" SAND SCOOP
cabinet houses doubles as a furniture
[no value]
[no value]
WALTER E. BURTON
SAND buckets, which should be in every home for use in fighting fires and smothering incendiary bombs, are not particularly attractive objects. But when placed in an easily made cabinet, such a bucket can remain on duty in the swankiest living room or anywhere else.
PopularScience_19430201_0142_002_0114.xml
article
HW518
HW518
Housekeeping Aids
[no value]
Smartly Styled Shopping Cart
[no value]
[no value]
[no value]
[no value]
CASH AND CARRY is the vogue these tire-saving days, and a smartly styled shopping cart will help you roll your own! Strong and spacious, yet compact and light, these useful carryalls may be obtained in composition wood or durable canvas. They may be pushed or pulled with ease and occupy a very small parking space, while bag at right is collapsible when empty.
PopularScience_19430201_0142_002_0115.xml
article
HW518
HW518
[no value]
[no value]
Fiber Pad Replaces Steel Wool
[no value]
[no value]
[no value]
[no value]
FROM THE CARIBBEAN area comes this fiber-meshed scouring pad to replace hard-to-get steel wool. It is long lasting, cannot rust and will not splinter or cause injury to hands, nor scratch the fingernails
PopularScience_19430201_0142_002_0116.xml
article
HW518
HW518
Fiber Pad Replaces Steel Wool
[no value]
Leakiess Wax-Paper Containers
[no value]
[no value]
[no value]
[no value]
YOUR LEFTOVER PROBLEM is neatly solved by these leakless wax-paper containers which may be marked with their contents and stacked in your refrigerator. They're also good for box lunches
PopularScience_19430201_0142_002_0117.xml
article
HW518
HW518
Fiber Pad Replaces Steel Wool
[no value]
Kitchen Sets Made of Plastic
[no value]
[no value]
[no value]
[no value]
ALL-PLASTIC AND ALL-PURPOSE aptly describes the 17-piece kitchen utility set shown below. Individual articles are molded in one piece out of crystal-clear synthetic material. They will not break or tarnish
PopularScience_19430201_0142_002_0118.xml
article
HW518
HW518
Fiber Pad Replaces Steel Wool
[no value]
Mop and Drainer Combination
[no value]
[no value]
[no value]
[no value]
MOPPING-UP OPERATIONS are simplified by pressing the mop into an adjustable drainer that fits any pail, eliminating hand-wringing and splashing. Mop and drainer come as unit
PopularScience_19430201_0142_002_0119.xml
article
HW519
HW519
Miscellaneaus
[no value]
New Knockdown Lounging Chair
[no value]
[no value]
[no value]
[no value]
A FURNISHING FEATURE for porch and parlor alike, and particularly well suited to small-type defense homes, this knockdown lounging chair is purchased in a carton and put together at home. It is made of noncritical materials and may be obtained in wine, beige, green, turquoise and blue
PopularScience_19430201_0142_002_0120.xml
article
HW519
HW519
Miscellaneaus
[no value]
Luminous Pictures for Nurseryz
[no value]
[no value]
[no value]
[no value]
A DECORATIVE NOTE for the bedroom or nursery, as well as a means of overcoming a child's fear of the dark, is provided in these luminous pictures. After brief exposure to daylight or electric illumination, they glow in the dark for about four hours.
PopularScience_19430201_0142_002_0121.xml
article
HW519
HW519
Miscellaneaus
[no value]
Oven Door with Glass
[no value]
[no value]
[no value]
[no value]
THINGS TO COME in household ranges will include an oven door fitted with a specially heat-treated plate-glass window, allowing the homemaker to bake her cake and see it, too. Heat loss occasioned by opening the door is eliminated, and the danger of burning the baked goods is cut to a minimum
PopularScience_19430201_0142_002_0122.xml
article
HW519
HW519
Miscellaneaus
[no value]
REFRIGERATOR CARE
[no value]
[no value]
[no value]
[no value]
Always wipe up at once any food spilled inside the refrigerator. Food acids may otherwise stain the finish. Never use any sharp instrument to break trays loose from the freezing compartment. Mild soap and warm water are good for cleaning the outside of the cabinet.
PopularScience_19430201_0142_002_0123.xml
article
HW520
HW520
Woodworking
[no value]
Tennis Rackets, Golf Clubs Stored in Homemade Rack
[no value]
[no value]
[no value]
R. M. WOODBURY
HERE is a simple wooden rack protecting your tennis rackets and golf clubs from warp or damage, yet allowing them to hang free. Design it according to the size and number of pieces to be stored, and hang it in a room or closet of even, moderate temperature.
PopularScience_19430201_0142_002_0124.xml
article
HW520
HW520
[no value]
[no value]
Pie Tin Amplifies Alarm to Wake Heavy Sleepers
[no value]
[no value]
[no value]
E. G. MACHAUER
HEAVY sleeper? Try placing a pie tin, turned bottom up, under a springwound alarm clock, as shown below. The vibration of the clock on this sounding board will cause considerable racket, probably enough to arouse you.
PopularScience_19430201_0142_002_0125.xml
article
HW520
HW520
Woodworking
[no value]
Two-Part Board on Fence Bottom Makes Replacements Easy
[no value]
[no value]
[no value]
J. W. BESSMAN
WOODEN bottom boards on wire fences have a high rate of replacement due to rot. As shown above, two narrow boards, cleated together, may be used instead of a single wide one, with the fencing attached to the upper strip. The lower board is replaced easily.
PopularScience_19430201_0142_002_0126.xml
article
HW520
HW520
The Handy Man
[no value]
Hand Cultivator Also Used as Emergency Carrier
[no value]
[no value]
[no value]
R. M. W.
A HAND cultivator will serve efficiently as an emergency wheelbarrow for carting loads of medium weight that are too awkward to be carried by hand. Simply invert the cultivator and place a suitable box on the handles, resting snugly against the shares, as shown in the photograph at left.
PopularScience_19430201_0142_002_0127.xml
article
HW521
HW521
Miscellaneaus
[no value]
Cah Prizes
FOR GIFTS TO MAKE FOR SERVICE MEN
FIRST PRIZE $50-SECOND PRIZE $25-THIRD PRIZE $10 THREE PRIZES OF $5 EACH
WHAT SERVICE MEN LIKE
[no value]
[no value]
[no value]
THE purpose of this contest is to develop projects which any man or woman can make in the home, using noncritical and readily available materials. Remember—it’s the idea that counts, not skilled craftsmanship. Mail your entry, or entries, suitably packed and fully prepaid to the Service Men’s Contest Editor, POPULAR SCIENCE MONTHLY, 353 Fourth Avenue, New York, N. Y., to arrive on or before March 1, 1943.
PopularScience_19430201_0142_002_0128.xml
article
HW522
HW522,HW523
Home and Workshop
[no value]
Breakfast-in-Bed Tray
HAS HANDY MAIL AND NEWSPAPER COMPARTMENTS
[no value]
[no value]
CHARLES
BERTRAM BROWNOLD
A WELL-BUILT and nicely decorated breakfast tray is not only only attractive gift for milady who enjoys an occasional morning meal in bed, but is also of practical use in the event of illness. The tray illustrated is made of a panel of ⅛" plywood, glued into grooves in a hardwood frame, the corners of which are halflapped and glued.
PopularScience_19430201_0142_002_0129.xml
article
HW524
HW524,HW525
Electrical
[no value]
MIDGET ELECTRIC ALARM IS KEPT UNDER PILLOW
[no value]
[no value]
[no value]
R. L. WHITMAN
WHENEVER two or more persons who must get up at different hours sleep within hearing of the same alarm clock, it is likely to awaken the wrong one. The individual alarm illustrated, however, sets up a rousing buzz under one sleeper’s pillow, but cannot be heard by anybody else.
PopularScience_19430201_0142_002_0130.xml
article
HW525
HW525
Shop Data
[no value]
FINISHING PLYWOOD
JOINT FILLERS
[no value]
[no value]
[no value]
Natural. Apply priming coat of thin shellac, sand lightly, and rub down with one or two coats of wax. A more elaborate finish may be obtained by using a shellac priming coat followed by several coats of rubbed varnish or lacquer. For outdoor plywood, give several applications of linseed oil or three coats of good spar varnish, the first thinned fifty percent with genuine turpentine.
PopularScience_19430201_0142_002_0131.xml
article
HW526
HW526,HW527
[no value]
[no value]
SELF-POLISHING WAX
MAKES MANY ARTICLES LAST LONGER
[no value]
[no value]
Kenneth Murray
YOU can help conserve the national stockpile of civilian goods by making all normally replaceable articles last much longer, thereby avoiding the purchase of new goods. An easy way of doing this is to prevent wear, rusting, and corrosion by protecting surfaces wherever possible with a suitable finish.
PopularScience_19430201_0142_002_0132.xml
article
HW528
HW528
IDEAS for HOME OWNERS
[no value]
Shatterproofing Blackout Paint
[no value]
[no value]
[no value]
[no value]
SHATTERPROOFING BLACKOUT PAINT not only keeps light from showing through windows, but reduces the danger of flying glass during air raids. The coated glass will break on impact or concussion, but the fragments cling to the paint instead of flying in all directions.
PopularScience_19430201_0142_002_0133.xml
article
HW528
HW528
IDEAS for HOME OWNERS
[no value]
New Wooden Radiator Covers
[no value]
[no value]
[no value]
[no value]
NONPRIORITY RADIATOR COVERS, made of wood instead of metal, are now available in nine adjustable sizes ranging from 14" to 76" in length and from 8" to 12" in width, and in several colors, including ivory and walnut. Both ends of the covers slide in or out for adjustment of length, so the raised portion remains in the center, rather than at one end, giving the cover a much neater appearance.
PopularScience_19430201_0142_002_0134.xml
article
HW528
HW528
IDEAS for HOME OWNERS
[no value]
Extension Handle for Brushes
[no value]
[no value]
[no value]
[no value]
THIS BRUSH EXTENSION HANDLE permits the operator to paint walls, ceilings, high moldings, baseboards, floors, and the undersurfaces of shelves and the like from a normal standing position. Brushes or any other tools with handles can be attached to the working head with clips.
PopularScience_19430201_0142_002_0135.xml
article
HW528
HW528,HW529
IDEAS for HOME OWNERS
[no value]
Concrete Forms Made of Fiber
[no value]
[no value]
[no value]
[no value]
FIBER CONCRETE FORMS, resembling giant mailing tubes, speed the setting up of concrete piers or posts for foundations, and save the time and material formerly required to put up and take down wooden forms. After the concrete has been poured into them and has set, the forms can be cut away or simply allowed to disintegrate.
PopularScience_19430201_0142_002_0136.xml
article
HW529
HW529
IDEAS for HOME OWNERS
[no value]
Washable Canvas Wall Covering
[no value]
[no value]
[no value]
[no value]
CANVAS WALL COVERING that is washable and is said to reinforce plaster against cracking is now available in harmonizing companion patterns for the decoration of adjoining rooms. Its designs consist of oil paints printed on a canvas foundation, affording a nonporous and nonabsorbent finish.
PopularScience_19430201_0142_002_0137.xml
article
HW529
HW529
IDEAS for HOME OWNERS
[no value]
Fire Alarm Wound Like Clock
[no value]
[no value]
[no value]
[no value]
AN AUTOMATIC FIRE ALARM that requires no batteries or wiring is wound up like a clock. If the temperature at any time rises to 110 deg. F., an expanding thermostat presses a release button, and the spring-operated bell rings. The thermostats are also available mounted on insulating plates with two electrical terminals each for connection to the existing doorbell circuit.
PopularScience_19430201_0142_002_0138.xml
article
HW529
HW529
IDEAS for HOME OWNERS
[no value]
Powdered Putty Made of Wood
[no value]
[no value]
[no value]
[no value]
PUTTY MADE FROM WOOD comes in powder form and is mixed with water for use. When hard, it can be sawed, chiseled, nailed, sanded, or polished like wood. Filling cracks, knotholes and nail holes, covering tile and insulating-board joints, and setting loose handles are a few of its uses.
PopularScience_19430201_0142_002_0139.xml
article
HW529
HW529
IDEAS for HOME OWNERS
[no value]
Other new ideas
[no value]
[no value]
[no value]
[no value]
ASBESTOS AIR-CONDITIONING DUCTS, entirely prefabricated, save steel and labor. They are made with slip joints for easy installation. A BLACKOUT BULB that can be left on even near open windows gives a faint orange light. As yet it is restricted to industrial plants.
PopularScience_19430201_0142_002_0140.xml
article
HW530
HW530,HW531
New Shop Ideas
[no value]
RECLAIMING Hack-Saw Blades
[no value]
[no value]
[no value]
W. C. CHENEY
NEW hand hack-saw blades tend to break close to the pin when too much pressure is applied. To conserve vital steel, these blades should be salvaged. The first step is to round off the broken end to the original curvature. Care should be taken to hold the blade vertically against the grinding wheel, since if it lies flat on the rest it may snag and break again or gouge a hole in the wheel.
PopularScience_19430201_0142_002_0141.xml
article
HW531
HW531
Shop Data
[no value]
SLOPE PER FOOT IN DEGREES
[no value]
[no value]
[no value]
[no value]
Protractors, adjustable triangles, and quadrants of shop machines are graduated in degrees, but blueprints often express an angle as so many inches or fractions of an inch of slope per foot. Such specifications can be converted to degrees by calculation or reference to tables.
PopularScience_19430201_0142_002_0142.xml
article
HW532
HW532
New Shop Ideas
[no value]
DRILL-PRESS JACKSHAFT
GIVES WIDE RANGE OF SPINDLE SPEEDS
[no value]
[no value]
C. W. BATTELS
ALL that has to be purchased for this jackshaft is a 4-step pulley, one 25" V-belt, and one 28" V-belt. For the jackshaft itself, turn a rock-maple plug to a snug fit in the drill-press column. Drill a ½" hole through the center, counterbore it from the top to a depth of ½", and taper the remainder of the hole from both sides to ¾" in diameter.
PopularScience_19430201_0142_002_0143.xml
article
HW533
HW533
New Shop Ideas
[no value]
Old High-Speed Bits Salvaged by Welding to Mew Shanks
[no value]
[no value]
[no value]
[no value]
A NEW life of usefulness can be given old high-speed bits and thread chasers that have been ground short simply by welding them to cold-rolled steel shanks. Such welded bits give good service as form, boring, and turning tools in machining aluminum alloy, stainless steel, drill rod, and even tool steel.
PopularScience_19430201_0142_002_0144.xml
article
HW533
HW533
New Shop Ideas
[no value]
Handy Marking Gauge Is Easily Attached to Try Square
[no value]
[no value]
[no value]
RONALD EYRICH
A MARKING-GAUGE attachment to fit your try square can be made from a piece of 1/16" by ½" band iron and a machine screw. Bend the band iron in a U shape, as shown, with one leg ½" longer than the other. Drill a ¼" hole through the shorter leg to line up with the markings on the square, and a 1/16" hole near the end of the long leg into which the marking pencil can be inserted.
PopularScience_19430201_0142_002_0145.xml
article
HW533
HW533
New Shop Ideas
[no value]
Sash Lift Aids in Balancing Weight of Drill-Press Table
[no value]
[no value]
[no value]
DAN D. FULMER
TO COUNTERBALANCE the weight of my drill-press table, I obtained through a local hardware store a spring-type sash lift of from 27 to 29 lbs. capacity I fastened the spring housing to the back of the motor, and the tape to the rear of the table.
PopularScience_19430201_0142_002_0146.xml
article
HW533
HW533
[no value]
[no value]
Folding Rule Used to Pinch-Hit as Rough Thickness Gauge
[no value]
[no value]
[no value]
[no value]
NEXT time you are about to search through your scrap box for a strip of wood to fit a certain measurement, try usibg a common folding rule as a thickness gauge. Simply fold up the number of rule sections needed to approximate the dimension and then compare this with suitable strips as you find them.
PopularScience_19430201_0142_002_0147.xml
article
HW534
HW534,HW535,HW536,HW537,HW538
MACHINISTS FOR WAR WORK
[no value]
ROUGH TURNING IN THE LATHE
[no value]
[no value]
[no value]
[no value]
ANYBODY who wants to qualify as an all-around machinist must be able to do good lathe work. There is probably no machine tool in the shop that comes into use more often or is capable of as many operations. In its many variations, including the automatic screw machine and turret lathe, it is indispensable to mass production.
PopularScience_19430201_0142_002_0148.xml
article
HW539
HW539
New Shop Ideas
[no value]
Bolt and Nuts Form Arbor for Machining Small Work
[no value]
[no value]
[no value]
J. S. MORREL
IF A MANDREL of the proper size is not available, a small gear blank, collar, or similar piece that must be machined all over can be mounted for turning as follows: Chuck the work, drill it through or otherwise bring the bore to size, and face one side.
PopularScience_19430201_0142_002_0149.xml
article
HW539
HW539
New Shop Ideas
[no value]
Simple Tool Setup Forms Radii on Bars and on Corners of Square Work
[no value]
[no value]
[no value]
C. W. W.
WHERE a true radius must be formed on the end of a flat bar or at the corner of a square or rectangular piece, it can be done by pivoting the piece on a firmly supported shaft at the required distance from the grinding wheel, as shown at left. Radii can also be milled in the lathe by mounting a T-headed bolt on the compound rest as in the second drawing.
PopularScience_19430201_0142_002_0150.xml
article
HW539
HW539
Shop Data
[no value]
REPAIRING A NOISY MOTOR
[no value]
[no value]
[no value]
[no value]
EXCESSIVE noise or vibration in a small motor may be due to any of several defects. The most common of these is worn bearings. To check for this condition, grasp the shaft with the fingers and try to move it up and down, taking no note of end play parallel to the shaft.
PopularScience_19430201_0142_002_0151.xml
article
HW540
HW540,HW541
[no value]
[no value]
CRAFTWORK FOR WINTER EVENINGS
Four Out-of-the-Ordinary Projects
[no value]
[no value]
[no value]
CRAFTSMEN, here’s a real winter harvest of unusual things to make—a feast of workshop projects to whet your creative appetite and suit your taste for interesting variety. First is a fine horse-head book end, hand carved and of rich appearance.
PopularScience_19430201_0142_002_0152.xml
article
HW540
HW540,HW541
Craftwork
[no value]
Carved Horse-Head Book End
[no value]
[no value]
[no value]
[no value]
SCULPTURED BOOK END. Any man’s library might display this novel “horsy” book end to advantage. Plot the outline on squares, following the contour on the squares in the accompanying drawing. Band-saw it from a selected piece of mahogany 1¼" by 5⅞" by 9 5/16".
PopularScience_19430201_0142_002_0153.xml
article
HW541
HW541,HW542
Craftwork
[no value]
Novel Plywood Wastebasket
[no value]
[no value]
[no value]
[no value]
"SPREADWOOD" BASKET. Serviceability and modern appeal are combined in this wastebasket, and there will be added zest in working out an interesting project made mostly of a single ⅜" sheet of plywood 16" by 21". The grain of the face ply runs in the direction of the shorter dimension.
PopularScience_19430201_0142_002_0154.xml
article
HW542
HW542
Craftwork
[no value]
Boring Bar and Circle Cutter
[no value]
[no value]
[no value]
[no value]
BORING BAR AND CIRCLE CUTTER. The drill-press operator can make several variations of this cutting jig to save time in cutting circles in composition board, fiber, or plywood. The circle cutter at A is made of 7/32" (or ⅛") drill rod approximately 2⅞" long.
PopularScience_19430201_0142_002_0155.xml
article
HW542
HW542
Craftwork
[no value]
Six-Drawer Hardware Cabinet
[no value]
[no value]
[no value]
[no value]
HARDWARE CABINET. Two or more of these can be grouped as convenient. Six similar drawers of 7/16" pine have flush-recessed knobs which are centered on the drawer fronts. These are made on the drill press with the boring tool and circle cutter described above.
PopularScience_19430201_0142_002_0156.xml
article
HW543
HW543
[no value]
[no value]
Taped Rail Keeps Locomotives from Slipping on Grades
[no value]
[no value]
[no value]
C. ELMER BLACK
MODEL locomotives, especially the light tin-plate variety, will pull better on grades if slipping is prevented by folding a ½" wide strip of adhesive tape over one of the outside rails. This simple aid has given good results on grades of as much as 10 percent.
PopularScience_19430201_0142_002_0157.xml
article
HW543
HW543
[no value]
[no value]
Uniform Wire Mast Rings Wound for Ship Models
[no value]
[no value]
[no value]
PAUL H. SMITH
SMALL mast rings for ship models can be made by winding wire on a grooved dowel, as indicated in the drawing, and then using a pair of end-cutting pliers or scissors to cut each turn. A spot of solder is put on to join the ENDS.
PopularScience_19430201_0142_002_0158.xml
article
HW543
HW543
Craftwork
[no value]
Model Bulwarks Bent to Fit Hull Tightly
[no value]
[no value]
[no value]
ANTONIO GELINEAU
SHIP-MODEL bulwarks, even when they are steamed, have a tendency to straighten out and pull away from the hull, especially at the bow. To overcome this, make a saw cut in a board at a slight angle, as shown in the drawings above, place the end of a steamed bulwark strip in the cut, and hold it with weights until it has dried thoroughly.
PopularScience_19430201_0142_002_0159.xml
article
HW543
HW543
Shop Data
[no value]
FACEPLATE TURNING WITHOUT SCREWS
[no value]
[no value]
[no value]
[no value]
[WOODWORKING] 1. When screws cannot be used to fasten stock to a lathe faceplate, a piece of softwood plank, a little larger in diameter than the object to be made, is screwed to the faceplate and turned in the regular way. 2. When flat and true, glue on a piece of wrapping paper and mark diameter of stock to be turned with a pencil.
PopularScience_19430201_0142_002_0160.xml
article
HW544
HW544,HW545,HW546,HW547
Miscellaneaus
[no value]
Chikens for Everyons
[no value]
[no value]
[no value]
ANDREW R. BOONE
NOT everyone can keep a cow, kill his own pork or find room to plant a victory garden, but when it comes to poultry and eggs, a 15-hen flock, kept in a corner of the yard, will provide an average of 1,800 eggs a year, plus 200 lbs. of meat for the dinner table.
PopularScience_19430201_0142_002_0161.xml
article
HW548
HW548
Craftwork
[no value]
Panel Screen
WOVEN FROM STRIPS SALVAGED FROM BASKETS
[no value]
[no value]
BENJAMIN NIELSEN
AN ATTRACTIVE folding screen made largely of waste material can be built with either hand or power tools. The panel sections are woven with strips obtained from ordinary bushel baskets. Baskets having rounded bottoms rather than the sharp edge are preferable, for they will provide longer continuous strips.
PopularScience_19430201_0142_002_0162.xml
article
HW549
HW549
IT'S ALL IN THE BOOK
[no value]
Your Sewing Kit
[no value]
[no value]
[no value]
B. N.
HERE is a little sewing kit that will please the distaff side of the family. On the circular saw, groove a piece of maple or other hardwood ¾" by 1⅝" by 22" across its entire width to a depth of ½" as shown in the drawing. An improvised guide of tin, clamped to the saw table, will help to space the grooves accurately.
PopularScience_19430201_0142_002_0163.xml
article
HW550
HW550
Craftwork
[no value]
Tin Lining Makes Wooden Ash Tray Free from Fire Hazard
[no value]
[no value]
[no value]
CLYDE S. SCRIBNER
ONE disadvantage of wooden ash trays is that they may be blackened or even set afire by burning cigarette stubs. The one illustrated eliminates both this objection and the disagreeable odor of smoldering tobacco that often hovers about an ordinary ash tray.
PopularScience_19430201_0142_002_0164.xml
article
HW550
HW550
New Shop Ideas
[no value]
Operation of Jig-Saw Blade Improved by Teeth Filed in Back
[no value]
[no value]
[no value]
R. W.
WHEN medium or heavy saber blades are used in jigsawing where it is necessary to back the blade in the cut by reversing the direction of the stock, considerable difficulty is often encountered due to the packing of fine sawdust in the kerf, which blocks the return of the blade.
PopularScience_19430201_0142_002_0165.xml
article
HW550
HW550
Miscellaneaus
[no value]
Quick-Acting Staple Remover Is Useful Tool for Draftsmen
[no value]
[no value]
[no value]
R. L. W.
FOR ease, convenience and speed, a stapling machine is superior to thumbtacks or tape in fastening drawings to a board, and many draftsmen would prefer to use it if the staples could afterward be removed quickly and without damage to the paper.
PopularScience_19430201_0142_002_0166.xml
article
HW551
HW551
Woodworking
[no value]
Scroll-Sawed Wall Shelves
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19430201_0142_002_0167.xml
article
HW552
HW552
Miscellaneaus
[no value]
Quection Bee
ANSWERS
[no value]
[no value]
[no value]
MANY years ago, back in 1923, POPULAR SCIENCE offered prizes for the best letters from readers telling which tool they thought the most useful one in the shop. Probably many others will agree with the first-prize winner, who wrote that the most versatile, all-around tool he had was a pair of ordinary slip-joint pliers.
PopularScience_19430201_0142_002_0168.xml
article
HW553
HW553
Miscellaneaus
[no value]
Holder Makes It Easy to Take One Memo Slip at a Time
[no value]
[no value]
[no value]
R. L. W.
ANYONE using 3" by 5" memo slips or file cards knows they are a nuisance if left in a drawer. If they are stacked in a box, it is hard to take out a single card quickly. This convenient holder staggers the cards so that the edge of the topmost one always projects a little farther than those below, making it easy to pick out one at a time.
PopularScience_19430201_0142_002_0169.xml
article
HW553
HW553
Miscellaneaus
[no value]
Slanted Drawer Partition Keeps Stationery Handy
[no value]
[no value]
[no value]
J. M.
You can store both paper and envelopes neatly in the same drawer and have the paper readily accessible by inserting a loose, diagonal partition. A partition to suit the drawer can be cut from a sheet of thin plywood, but a common dime-store bread board, 10" wide, fits perfectly in a typewriter paper drawer 9" wide by 5½" deep.
PopularScience_19430201_0142_002_0170.xml
article
HW553
HW553
Electrical
[no value]
Spark Locates Break in Wire of Imbedded Heating Coil
[no value]
[no value]
[no value]
W. C. WILHITE
IF A BURNED-OUT or broken resistance coil in one of your heating appliances is imbedded in cement, you may have trouble locating the gap. To break open the cement haphazardly may ruin the element. By using the following method, however, you can find the break without exposing the wire, and then make the necessary repair.
PopularScience_19430201_0142_002_0171.xml
article
HW554
HW554,HW555
[no value]
[no value]
KEEPING THE HOME SHIPSHAPE
For convenient turning on of a bedside lamp in the dark, attach a pull switch to the back of the bed with the chain extending through a small hole, bushed with a brass eyelet to protect the wood finish
If a screw head in a faucet spindle shears off when a washer is being replaced, the screw can be removed by cuffing a new slot with a hack sow, as shown at the left. The slot in the face of the spindle will do no harm since the washer will cover it
Blotters, cards, tables, or other needed material can be held on the inside of a book cover with four of the art corners used in mounting photos
Steel wool will clean the tops of books if the pages are held firmly. Do not scratch the covers. Finish with a cloth
Transparent tape will protect data on a paint can from paint dripped over the edge, and it can be replaced when necessary
Attaching harness snaps to the eyelets at the ends will adapt an old suitcase handle nicely for carrying big, heavy packages
[no value]
[no value]
[no value]
[no value]
PopularScience_19430201_0142_002_0172.xml
article
HW556
HW556
The Handy Man
[no value]
Cap on Chimney Will Keep Out Rain and Eliminate Down Draft
[no value]
[no value]
[no value]
JOHN MODROCH
TO CAP a modern concrete-faced chimney for protection against rain entering the stack and to prevent down draft, first hole into the top with a star drill and cement in the heads of two carriage bolts of suitable length to serve as anchors, as illustrated at A in the drawing.
PopularScience_19430201_0142_002_0173.xml
article
HW556
HW556
Miscellaneaus
[no value]
Metal Flashing Weatherproofs Patched-up Vertical Siding
[no value]
[no value]
[no value]
J. M.
IN REPLACING a damaged section of vertical siding on a cottage, barn, or similar building, the job can be made weatherproof by inserting a piece of metal flashing along the top and bottom edges as shown below. Bevel the ends of both the old and new boards to give the flashing a downward and outward pitch so that the joints will shed water.
PopularScience_19430201_0142_002_0174.xml
article
HW556
HW556
Craftwork
[no value]
Childhood Trinkets Preserved on Novel Jardiniere
[no value]
[no value]
[no value]
MRS. K. R. SIPPLE
An interesting way to keep old rings, buttons, thimbles, brooches, beads, necklaces and other childhood treasures is to decorate a jardiniere with them. Soak fine tissue paper in water, then boil until you have a smooth pulp. Mix in a small quantity of glue or gelatin.
PopularScience_19430201_0142_002_0175.xml
article
HW557
HW557
Woodworking
[no value]
PARK RANGER DESIGNS SIMPLIFIFD SKI CARRIER
[no value]
[no value]
[no value]
[no value]
FOR simplicity of construction it would be hard to beat this car-top ski rack designed by John Hansen, a former Yosemite National Park ranger now in the Army’s Mountain Troops. The main crossbars are 1" wide, 1¼" deep, 48" long, of oak or other hardwood.
PopularScience_19430201_0142_002_0176.xml
article
HW558
HW558,HW559,HW560,HW561
WHAT YOU CAN DO WITH
[no value]
Portable Woodworking Machines
[no value]
[no value]
[no value]
EDWIN M. LOVE
A VARIETY of portable machine tools has been developed in recent years. Many are of special interest to the home mechanic, for at times it is advantageous to be able to take the machine to the work. Some of these tools are suitable only for light, delicate tasks; others are adapted to heavier service, and will relieve the craftsman of much tedious labor.
PopularScience_19430201_0142_002_0177.xml
article
HW561
HW561
[no value]
[no value]
Shaped-and-Routed Plaque Embodies Victory Design
[no value]
[no value]
[no value]
E. L.
MAKING this plaque is an exercise in shaping and routing. The pattern can be enlarged by drawing it on squares of suitable size. Saw it out, smooth the edges, and run the molding on. The figure is outlined either with a scroll-sawed pattern or freehand.
PopularScience_19430201_0142_002_0178.xml
article
HW562
HW562,HW563
Automobiles
[no value]
Two-Rail Operation
2. REVERSING - LOOP CONTROLS
[no value]
[no value]
David Marshall
WE HAVE already seen some of the surprising results of two-rail operation. To recall but one, look at the single-track junction in Fig. 1. Remember that the frog is not insulated, but with the points, lead rails, and heel rails receives power from one or the other stock rail, depending on whether the switch is open or closed.
PopularScience_19430201_0142_002_0179.xml
article
HW564
HW564,HW565,HW566
Home and Workshop
[no value]
WINDOW-SEAT CABINET FOR A CHILD'S ROOM
[no value]
[no value]
[no value]
THOMAS PARTRIDGE
THE cabinets, drawers, and bookcases that parents use are often looked upon with envy by the children of the family. This four-in-one unit more than satisfies the youngster’s desire for “grown-up” furniture. It combines adequate book space, a cabinet “with real doors,” three convenient drawers, and a window seat.
PopularScience_19430201_0142_002_0180.xml
article
HW567
HW567
Miscellaneaus
[no value]
Aids in Cutting and Installing Big Metal or Plywood Sheets
[no value]
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IF YOU have to mark a long piece of sheet metal or plywood for cutting to width, you can save time by notching the sheet at one end and running a chalk line through the notch. A knot at the end of the line keeps it from pulling out. Installing cold-air boxes for furnaces is a hard one-man job when cumbersome iron sheets have to be handled.
PopularScience_19430201_0142_002_0181.xml
article
HW567
HW567
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Small Comb Carried in Sheath Attached to Eyeglass Case
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ANYONE who carries an eyeglass case will find it simple to add a sheath or pocket for a comb. Make it of a leather or artificial-leather strip to match, and cement the edges firmly to the back of the case.—H. R. NAILS hold better in plywood than in solid lumber, as plywood resists the tendency of a nail to split the fibers apart.
PopularScience_19430201_0142_002_0182.xml
article
HW567
HW567
Shop Data
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REMOVING PAINT FROM GLASS
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PAINT can be removed from window panes, show windows, and other glass as follows: Make up a paste of 1 lb. of whiting and a small quantity of water containing all the washing soda it will dissolve. Apply this paste to the paint, such as, for example, painted letters on a show window which it is desired to remove or replace with other lettering.
PopularScience_19430201_0142_002_0183.xml
article
HW568
HW568,HW569,HW570
Home Science
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THE UNFRIENDLY ELEMENT
Nitrogen, So Common in Nature, Will Often Fight to Be Alone
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KENNETH M. SWEZEY
LAZY nitrogen likes to be alone. One of the most familiar substances on earth, it is also one of the most sluggish. Try to join free nitrogen with some other element, and you need the help of artificial lightning or expensive catalysts. Even then, an incautious touch, a rise in temperature, and “Boom!”—your nitrogen has blown up its compound (if not apparatus and laboratory) in its desire to be free.
PopularScience_19430201_0142_002_0184.xml
article
HW571
HW571,HW572
HOME EXPERIMENTS
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Centrifugal Force and Sound Vibration Demonstrated in Simple Tests
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TABLE-TOP demonstrations provide an entertaining way to investigate the apparent mysteries of science and amuse your friends at the same time. Here are half a dozen simple experiments dealing with as many oddities of science. Four of them show the application of centrifugal force— in amusement-park loop-the-loop rides, in the banked curves of railroad tracks and automobile highways, in the operation of the centrifuge for settling solids precipitated in solutions, and in explaining why the earth is flattened at the poles and bulged at the equator.
PopularScience_19430201_0142_002_0185.xml
article
HW573
HW573
Radio
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Servicing Your Radio - PART 10
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OFTEN minor adjustments that can be made at home will correct radio-receiver difficulties or give additional reception to an old set. Below are methods for detecting a faulty heater in the power pentode tube, extending reception at the upper end of the dial, eliminating noise in a new condenser, altering a midget filter circuit.
PopularScience_19430201_0142_002_0186.xml
article
HW574
HW574
Double-Jawed Parallel Clamps
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Double-Jawed Parallel Clamps
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PARALLEL CLAMPS WITH "DOUBLE" JAWS are now on the market for metal workers and radio craftsmen. The double-jaw feature provides a better and firmer grip on the work than the standard-type parallel clamp with only one jaw, extending the usual gripping area of only ½" or ¾" to more than 2".
PopularScience_19430201_0142_002_0187.xml
article
HW574
HW574
Double-Jawed Parallel Clamps
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Wooden Electrolytic Condenser
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WOODEN ELECTROLYTIC CONDENSERS, employing an impregnated-cardboard tube container and threaded wooden neck, have been found a satisfactory substitute for aluminum threaded-neck condensers of either the wet or dry electrolytic type.
PopularScience_19430201_0142_002_0188.xml
article
HW574
HW574
Double-Jawed Parallel Clamps
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Newly Developed Chime Records
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CHIME RECORDINGS for reproduction from church steeples have been improved to eliminate apparent discords arising from notes following too closely upon each other. In the new series, which contains 116 religious and patriotic selections, the recorded striking of the chimes has been acoustically timed and retains the musical relationship of the notes.
PopularScience_19430201_0142_002_0189.xml
article
HW574
HW574
Double-Jawed Parallel Clamps
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Diagrammatic Transmitter
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THIS TRANSMITTER DEMONSTRATOR—a schematic diagram of a radiotelephone transmitter—is used for visual education in the United Air Lines’ Boeing School of Aeronautics. It shows the conventional oscillator, radio-frequency amplifiers, and speech amplifier with plate modulation, each symbol in the circuit diagram representing an actual part mounted directly behind it on the opposite face of the panel.
PopularScience_19430201_0142_002_0190.xml
article
HW575
HW575,HW576
Home and Workshop
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Practice Code Sender and Receiver
LIST OF PARTS
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ARTHUR C. MILLER
MANY thousands of young men and women are busily engaged in America learning international code either for civilian-defense purposes or in preparation for enlistment in the Signal Corps, and a code oscillator—though impossible to buy now—is fast becoming a standard item in many homes.
PopularScience_19430201_0142_002_0191.xml
advertisement
221
221
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GENERAL ELECTRIC
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GENERAL ELECTRIC
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PopularScience_19430201_0142_002_0192.xml
advertisement
222
222
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THE CARBORUNDUM COMPANY: K-5
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THE CARBORUNDUM COMPANY
K-5
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PopularScience_19430201_0142_002_0193.xml
advertisement
223
223
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The Delta Manufacturing Company
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The Delta Manufacturing Company
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PopularScience_19430201_0142_002_0194.xml
advertisement
224
224
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G. & C. Merriam Co.
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G. & C. Merriam Co.
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PopularScience_19430201_0142_002_0195.xml
advertisement
225
225
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HARLEY-DAVIDSON MOTOR COMPANY
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HARLEY-DAVIDSON MOTOR COMPANY
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PopularScience_19430201_0142_002_0196.xml
advertisement
225
225
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THE FRANKLIN GLUE CO.
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THE FRANKLIN GLUE CO.
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PopularScience_19430201_0142_002_0197.xml
advertisement
225
225
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KEUFFEL & ESSER CO.
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KEUFFEL & ESSER CO.
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PopularScience_19430201_0142_002_0198.xml
advertisement
226
226
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E. C. ATKINS AND COMPANY
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E. C. ATKINS AND COMPANY
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PopularScience_19430201_0142_002_0199.xml
advertisement
227
227
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Advertisements
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PopularScience_19430201_0142_002_0200.xml
advertisement
228
228
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NICHOLSON FILE CO.
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NICHOLSON FILE CO.
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PopularScience_19430201_0142_002_0201.xml
advertisement
229
229
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Advertisements
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PopularScience_19430201_0142_002_0202.xml
advertisement
230
230
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argus
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argus
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PopularScience_19430201_0142_002_0203.xml
advertisement
230
230
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Old Town Canoe Company
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Old Town Canoe Company
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PopularScience_19430201_0142_002_0204.xml
advertisement
231
231
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Advertisements
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PopularScience_19430201_0142_002_0205.xml
advertisement
232
232
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HASTINGS MANUFACTURING COMPANY
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HASTINGS MANUFACTURING COMPANY
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PopularScience_19430201_0142_002_0206.xml
advertisement
233
233
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Smooth-On Manufacturing Co.
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Smooth-On Manufacturing Co.
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PopularScience_19430201_0142_002_0207.xml
advertisement
234
234
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MODERN WATERPROOFING PAINT CO.
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MODERN WATERPROOFING PAINT CO.
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PopularScience_19430201_0142_002_0208.xml
advertisement
234
234
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Advertisement
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PopularScience_19430201_0142_002_0209.xml
advertisement
234
234
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CHRISTY SUPPLY CO.
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CHRISTY SUPPLY CO.
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[no value]
[no value]
PopularScience_19430201_0142_002_0210.xml
advertisement
234
234
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Advertisement: POPULAR SCIENCE
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POPULAR SCIENCE
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PopularScience_19430201_0142_002_0211.xml
advertisement
235
235
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INDIAN MOTOCYCLE COMPANY
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INDIAN MOTOCYCLE COMPANY
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PopularScience_19430201_0142_002_0212.xml
advertisement
236
236
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Advertisements
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PopularScience_19430201_0142_002_0213.xml
article
236
236
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Light-Tight Door for Darkroom
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W. H. FOSTER
Two ordinary sash or window locks, one near the top of the darkroom door and one near the bottom, will draw the door tightly shut and prevent its being opened while light-sensitive material is exposed. If a strip of felt weatherstripping is tacked around the edge of the door where it closes, the locks will exert enough pressure to make the joint lightproof.
PopularScience_19430201_0142_002_0214.xml
article
236
236
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Color Films Viewed as Prints
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COATING the emulsion side of color transparencies with a new, white, opaque material transforms them in a few minutes and at a cost of a cent each into prints that may be viewed by reflected light, pasted into albums, and so forth. Overexposed transparencies are best for the purpose, and the kit of materials includes a chemical for reducing normal or underexposed ones to obtain best results with this method.
PopularScience_19430201_0142_002_0215.xml
advertisement
237
237
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Advertisements
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PopularScience_19430201_0142_002_0216.xml
advertisement
238
238
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Advertisements
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PopularScience_19430201_0142_002_0217.xml
article
239
239
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Corrugated Cardboard Holder Keeps Drills Separated
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RONALD EYRICH
MOST hand drills have a hollow handle to accommodate a set of small bits. Although this is a handy place for them, they may become dull from striking against each other. To prevent this, roll up a piece of corrugated cardboard to fit into the handle, and slip the drills into the corrugations.
PopularScience_19430201_0142_002_0218.xml
article
239
239
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Shopmade Carbide-Tipped Tool Bores Cored Holes to Size
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U. G. DENSTEN
SUBCONTRACTORS and other shop owners doing production work will find the shop-made tool shown above very useful for precision boring of cored holes in castings. The body of the tool may be made of cold-rolled steel and casehardened. An expansion slot and a screw permit adjustment for wear and sharpening of the carbide tip, which is brazed on in the usual way.
PopularScience_19430201_0142_002_0219.xml
advertisement
239
239
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EVINRUDE MOTORS
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EVINRUDE MOTORS
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PopularScience_19430201_0142_002_0220.xml
advertisement
240
240
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Advertisements
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PopularScience_19430201_0142_002_0221.xml
advertisement
241
241
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Advertisements
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PopularScience_19430201_0142_002_0222.xml
advertisement
242
242
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Advertisement
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PopularScience_19430201_0142_002_0223.xml
advertisement
242
242
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Advertisement: LEPAGE'S WATERPROOF plastic resin GLUE
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LEPAGE'S WATERPROOF plastic resin GLUE
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PopularScience_19430201_0142_002_0224.xml
advertisement
242
242
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[no value]
Advertisement
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PopularScience_19430201_0142_002_0225.xml
advertisement
242
242
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Advertisement: Popular Science
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Popular Science
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PopularScience_19430201_0142_002_0226.xml
advertisement
243
243
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THE VACU-MATIC COMPANY
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THE VACU-MATIC COMPANY
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PopularScience_19430201_0142_002_0227.xml
advertisement
244
244
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SOUTH BEND LATHE WORKS
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SOUTH BEND LATHE WORKS
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PopularScience_19430201_0142_002_0228.xml
advertisement
245
245
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THE NATIONAL EDUCATIONAL ALLIANCE, INC.
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THE NATIONAL EDUCATIONAL ALLIANCE, INC.
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PopularScience_19430201_0142_002_0229.xml
advertisement
246
246
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R. J. Reynolds Tobacco Company: CAMEL
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R. J. Reynolds Tobacco Company
CAMEL
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PopularScience_19430201_0142_002_0230.xml