Issue: 19500501

Monday, May 1, 1950
May 1950
5
True
156
Thursday, December 25, 2014

Articles
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POPULAR SCIENCE
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PopularScience_19500501_0156_005_0001.xml
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PopularScience_19500501_0156_005_0002.xml
masthead
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2
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POPULAR SCIENCE
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PopularScience_19500501_0156_005_0003.xml
tableOfContents
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2,4
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Highlights FOR MAY, 1950
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PopularScience_19500501_0156_005_0004.xml
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3
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PopularScience_19500501_0156_005_0005.xml
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4
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PopularScience_19500501_0156_005_0006.xml
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4
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PopularScience_19500501_0156_005_0007.xml
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5
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PopularScience_19500501_0156_005_0008.xml
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6
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The ROSICRUCIANS
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The ROSICRUCIANS
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PopularScience_19500501_0156_005_0009.xml
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7
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A Correspondence Institution
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A Correspondence Institution
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PopularScience_19500501_0156_005_0010.xml
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8
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COMMERCIAL TRADES INSTITUTE
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COMMERCIAL TRADES INSTITUTE
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PopularScience_19500501_0156_005_0011.xml
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9
9
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AUDEL
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AUDEL
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PopularScience_19500501_0156_005_0012.xml
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10
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art Instruction,Inc.
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art Instruction,Inc.
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PopularScience_19500501_0156_005_0013.xml
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11
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SMITH, President
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SMITH, President
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PopularScience_19500501_0156_005_0014.xml
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12
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AMERICAN SAFETY RAZOR CORP
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AMERICAN SAFETY RAZOR CORP
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PopularScience_19500501_0156_005_0015.xml
article
12
12,14,16,18
Letters
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Letters
Geiger Counter Hits the Spot
It Glitters—But Isn’t Metal
Memo to Detroit
Objection Overruled
How Wrong Can We Get?
Tracking the Stars
Tip on Filing PS Stories
Says PS Respects Religion
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Sir: Your Geiger counter article [March, p. 200] is just what I’ve been waiting for. I’ve spent as much on pamphlets and other magazines, trying to find out how to build a counter, as the parts themselves would cost. But I never found out what I needed to know until your piece came along.
PopularScience_19500501_0156_005_0016.xml
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13
13
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B. W. CCOKE
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B. W. CCOKE
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PopularScience_19500501_0156_005_0017.xml
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14
14
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PopularScience_19500501_0156_005_0018.xml
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15
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CLARENCE A. O’BRIEN & HARVEY JACOBSON
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CLARENCE A. O’BRIEN & HARVEY JACOBSON
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PopularScience_19500501_0156_005_0019.xml
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16
16
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ADCOX SCHOOL
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ADCOX SCHOOL
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PopularScience_19500501_0156_005_0020.xml
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17
17
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McMORROW, BERMAN & DAVIDSON
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McMORROW, BERMAN & DAVIDSON
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PopularScience_19500501_0156_005_0021.xml
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18
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PopularScience_19500501_0156_005_0022.xml
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19
19
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PopularScience_19500501_0156_005_0023.xml
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PopularScience_19500501_0156_005_0024.xml
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21
21
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DeFOREST’S TRAINING, INC.
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DeFOREST’S TRAINING, INC.
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PopularScience_19500501_0156_005_0025.xml
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22
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PopularScience_19500501_0156_005_0026.xml
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PopularScience_19500501_0156_005_0027.xml
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24
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PopularScience_19500501_0156_005_0028.xml
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25
25
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19500501_0156_005_0029.xml
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PopularScience_19500501_0156_005_0030.xml
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27
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NATIONAL SCHOOLS
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NATIONAL SCHOOLS
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PopularScience_19500501_0156_005_0031.xml
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28
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PopularScience_19500501_0156_005_0032.xml
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PopularScience_19500501_0156_005_0033.xml
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PopularScience_19500501_0156_005_0034.xml
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31
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REDIO-TELIVISION TRAINING ASSOCIATION,
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REDIO-TELIVISION TRAINING ASSOCIATION,
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PopularScience_19500501_0156_005_0035.xml
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PopularScience_19500501_0156_005_0036.xml
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PopularScience_19500501_0156_005_0037.xml
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PopularScience_19500501_0156_005_0038.xml
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35
35
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THE AURORA SCHOOL OF PHOTO-ENGRAVING.
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THE AURORA SCHOOL OF PHOTO-ENGRAVING.
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PopularScience_19500501_0156_005_0039.xml
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36
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PopularScience_19500501_0156_005_0040.xml
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PopularScience_19500501_0156_005_0041.xml
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PopularScience_19500501_0156_005_0042.xml
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39
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PopularScience_19500501_0156_005_0043.xml
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40
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PopularScience_19500501_0156_005_0044.xml
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41
41
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PopularScience_19500501_0156_005_0045.xml
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PopularScience_19500501_0156_005_0046.xml
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43
43
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U. S. SCHOOL OF MUSIC
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U. S. SCHOOL OF MUSIC
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PopularScience_19500501_0156_005_0047.xml
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43
43
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The Lincoln Electric Co.
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The Lincoln Electric Co.
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PopularScience_19500501_0156_005_0048.xml
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43
43
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Capitol Radio Engineering Institute
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Capitol Radio Engineering Institute
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PopularScience_19500501_0156_005_0049.xml
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44
44
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PopularScience_19500501_0156_005_0050.xml
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45
45
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PopularScience_19500501_0156_005_0051.xml
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45
45
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UNITED AUTO PARTS CO. INC
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UNITED AUTO PARTS CO. INC
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PopularScience_19500501_0156_005_0052.xml
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45
45
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METAL GOODS CORPORATION
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METAL GOODS CORPORATION
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PopularScience_19500501_0156_005_0053.xml
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46
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PopularScience_19500501_0156_005_0054.xml
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PopularScience_19500501_0156_005_0055.xml
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PopularScience_19500501_0156_005_0056.xml
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49
49
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THE ALADDIN CO.
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THE ALADDIN CO.
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PopularScience_19500501_0156_005_0057.xml
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49
49
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MODERN SHOE REBUILDING SCHOOL, Dept. PS-50
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MODERN SHOE REBUILDING SCHOOL, Dept. PS-50
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PopularScience_19500501_0156_005_0058.xml
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49
49
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ACME NEON INSTITUTE
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ACME NEON INSTITUTE
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PopularScience_19500501_0156_005_0059.xml
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49
49
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LARSON AUTOMOTIVE SUPPLIES
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LARSON AUTOMOTIVE SUPPLIES
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PopularScience_19500501_0156_005_0060.xml
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50
50
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PopularScience_19500501_0156_005_0061.xml
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51
51
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THORESEN Direct Sales
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THORESEN Direct Sales
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PopularScience_19500501_0156_005_0062.xml
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51
51
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GENERAL SALVAGE COMPANY
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GENERAL SALVAGE COMPANY
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PopularScience_19500501_0156_005_0063.xml
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51
51
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PRONTO MOWERS
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PRONTO MOWERS
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PopularScience_19500501_0156_005_0064.xml
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52
52
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PopularScience_19500501_0156_005_0065.xml
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53
53
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EMEROL MANUFACTURING CO., INC.
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EMEROL MANUFACTURING CO., INC.
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PopularScience_19500501_0156_005_0066.xml
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53
53
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M. M. PEN CO.
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M. M. PEN CO.
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PopularScience_19500501_0156_005_0067.xml
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53
53
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PopularScience_19500501_0156_005_0068.xml
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PopularScience_19500501_0156_005_0069.xml
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55
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PopularScience_19500501_0156_005_0070.xml
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PopularScience_19500501_0156_005_0071.xml
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57
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PopularScience_19500501_0156_005_0072.xml
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PopularScience_19500501_0156_005_0073.xml
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PopularScience_19500501_0156_005_0074.xml
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PopularScience_19500501_0156_005_0075.xml
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61
61
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National School of Meat Cutting, Inc.
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National School of Meat Cutting, Inc.
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PopularScience_19500501_0156_005_0076.xml
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61
61
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UNIVERSAL PLUMBING SCHOOL
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UNIVERSAL PLUMBING SCHOOL
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PopularScience_19500501_0156_005_0077.xml
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61
61
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N.W. SCHOOL OF TAXIDERMY
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N.W. SCHOOL OF TAXIDERMY
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PopularScience_19500501_0156_005_0078.xml
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61
61
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AIRCRAFT COMPONENTS, Inc.
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AIRCRAFT COMPONENTS, Inc.
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PopularScience_19500501_0156_005_0079.xml
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62
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PopularScience_19500501_0156_005_0080.xml
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PopularScience_19500501_0156_005_0081.xml
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PopularScience_19500501_0156_005_0082.xml
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PopularScience_19500501_0156_005_0083.xml
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PopularScience_19500501_0156_005_0084.xml
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PopularScience_19500501_0156_005_0085.xml
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PopularScience_19500501_0156_005_0086.xml
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PopularScience_19500501_0156_005_0087.xml
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70
70
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WYPE CORP
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WYPE CORP
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PopularScience_19500501_0156_005_0088.xml
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71,72,73,74,75,76,77,78,79,80,81,82
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CLASSIFIED OPPORTUNITIES
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PopularScience_19500501_0156_005_0089.xml
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82
82
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THE FATE-ROOT-HEATH COMPANY
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THE FATE-ROOT-HEATH COMPANY
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PopularScience_19500501_0156_005_0090.xml
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82
82
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GENERAL ENGINES CO.. Inc.
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GENERAL ENGINES CO.. Inc.
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PopularScience_19500501_0156_005_0091.xml
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83
83
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LONDON SPECIALTIES CO.
[no value]
LONDON SPECIALTIES CO.
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PopularScience_19500501_0156_005_0092.xml
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PopularScience_19500501_0156_005_0093.xml
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85
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JOHNSON
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JOHNSON
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PopularScience_19500501_0156_005_0094.xml
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PopularScience_19500501_0156_005_0095.xml
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PopularScience_19500501_0156_005_0096.xml
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PopularScience_19500501_0156_005_0097.xml
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89
89
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MARTIN MOTORS
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MARTIN MOTORS
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PopularScience_19500501_0156_005_0098.xml
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89
89
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UNITED MOTORS SERVICE
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UNITED MOTORS SERVICE
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PopularScience_19500501_0156_005_0099.xml
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89
89
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GENERAL MARINE COMPANY
[no value]
GENERAL MARINE COMPANY
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PopularScience_19500501_0156_005_0100.xml
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90
90
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PopularScience_19500501_0156_005_0101.xml
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91
91
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Remington
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Remington
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PopularScience_19500501_0156_005_0102.xml
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91
91
[no value]
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P D Q CAMERA COMPANY
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P D Q CAMERA COMPANY
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PopularScience_19500501_0156_005_0103.xml
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91
91
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Advertisement
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PopularScience_19500501_0156_005_0104.xml
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92
92
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Advertisements
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PopularScience_19500501_0156_005_0105.xml
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93
93
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HARLEY-DAVIDSON MOTOR CO.
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HARLEY-DAVIDSON MOTOR CO.
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PopularScience_19500501_0156_005_0106.xml
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94
94
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RADIO CORPORATION OF AMERICA
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RADIO CORPORATION OF AMERICA
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PopularScience_19500501_0156_005_0107.xml
article
95
95
The Voice of Science
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No Way To Run
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THE useless foot of this mouse illustrates a mutation. The chances that a mouse or a man will be born with a defect such as this are normally very small. Deleterious mutations may occur more often, however, if war is waged with atomic weapons. This mouse is one of 40,000 mice behind the fences at Oak Ridge, Tenn.
PopularScience_19500501_0156_005_0108.xml
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96
96
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KIEKHAEFER CORPORATION
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KIEKHAEFER CORPORATION
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PopularScience_19500501_0156_005_0109.xml
article
97
97
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TV Puts on Cap & 4 own...
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This picture previews a new job for television-teaching school. It shows how an in structor in watch-making could deliver an illustrated lecture in a new kind of classroom made possible by a new cheap, portable TV camera. On the big view ing screen in the foreground is a close-up of the works of an actively ticking watch.
PopularScience_19500501_0156_005_0110.xml
article
98
98,99,100,101,102,103,104,105
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“I Saw This Jet Liner Fly 500 M.P.H."
How They'll Fly
Quiet as a Comet
Traces of Birds
Centrifugal-Flow Compressor
Elaborate Pressurizing
Safety Problems
The Load Is Limited
Stooging Wastes Paraffin
Uncle Sam Would Like To See Them Make • • •
Pilot Slides to Safety
Variable Choke Built on Gun
Pedal Power Raises Platform
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THE 50-ton air liner squatting on the hangar’s apron taxied to the down-wind end of the runway, its gas turbines whining at low speed. Then, as the throttles were pushed open and the plane began to gather momentum, the jets’ roar rose until it sounded like a dozen railroad trains.
PopularScience_19500501_0156_005_0111.xml
article
106
106
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Jet Pilots Pack New Arctic Kit
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RECENT Arctic maneuvers headlined the importance of personal equipment that will permit human survival at temperatures far below zero. For the jet fighter pilot, that means not only warm clothing, but squeezing into the tight confines of his cockpit a sustenance kit that will keep him alive in case of an emergency landing or a bailout over Arctic wastes.
PopularScience_19500501_0156_005_0112.xml
article
107
107,108,109
New Ideas from the Inventors
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New Ideas from the Inventors
1 Device to Teach Sports.
2 Thermometer to Clip on Tap.
3 Ladder to Aid Mechanics.
4 Exhaust to Raise Car Jack.
5 Sea Cells to Fuel Craft.
6 Air Gun to Feed Rivets.
Tiny Tubes Lighten Aircraft
Army Gets New Gas Mask
Big Gear Goes To Dentist
Austin Has Sports-Car Lines
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By trying to duplicate the movements of an expert, a tyro using this trainer should be able to improve his skill at golf and similar sports. A movie film showing correct form Keeping tap water just at the temperature you want would be no trick with this thermometer designed to be clipped right on the nozzle of a conventional mixing faucet.
PopularScience_19500501_0156_005_0113.xml
article
110
110,111,112,113,114,115
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Meet the “Rambler”
This new smaller Nash is a plush job, not a stripped-down midget. It seats five, gets 30 miles to a gallon.
Fork-Lift Truck Gets Canopy
Funnel Warms Plane Faster
Giant Valves Hold Dam Water
Tiny Shovel Digs and Dumps
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Devon Francis
W. W. Morris
THE smallest “standard” American-made car offered the public since automobiles began swelling out before the war was introduced last month by Nash Motors. A convertible, it seats five persons, cruises nicely at 65 m.p.h., and gets 30 miles to the gallon of gas.
PopularScience_19500501_0156_005_0114.xml
article
116
116,117,118
Science & Industry
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Pulse Jets On Blade Tips Lift 'Copter•
Cyclotron Door Weighs 15 Tons
Mobile Oil Derrick Can Be Set Up in a Hurry
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THIS odd-looking flying machine is described by its designer as “the world’s simplest helicopter.” All its power comes from a pair of slender pulse-jet engines mounted on the rotor tips. They weigh less than 25 pounds apiece and have only one moving part—which can be replaced by a mechanic in five minutes.
PopularScience_19500501_0156_005_0115.xml
article
119
119,120,121,122,123
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Miniature TV Camera Keeps Tabs for Industry
"G-String” May Replace Coaxial Cable For TV
Flying Classroom Trains Narigators
Navy Gets New Sub-Killer
Automatic Tank Trucks Deliver Grain Like Oil
World’s Largest Light Bulb
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Martin mann
TELEVISION, already the lustiest brat in show business, soon may become just as important to industry and education. A new kind of camera “eye” can do it. Called the Vidicon, this RCA image tube is the basis for the lightest, cheapest, simplest TV camera made.
PopularScience_19500501_0156_005_0116.xml
article
124
124,125,126,127,128,129,130
[no value]
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How Movies Take You On Trip to Moon
Backstage visit to Hollywood’s most unusual set reveals special-effects tricks that make rocket ride look real.
Coin Lump Tans As You Wait
Car Clock Winds Itself
Radiation Detectors Fit Pocket
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tty Andrviv ft. ttonnc
WHEN Hollywood movie producers decided to make the forthcoming Technicolor film “Destination Moon,” they ran into a few problems they hadn’t bargained for. In outer space, where much of the action takes place, gravity becomes negligible and bodies drift aimlessly.
PopularScience_19500501_0156_005_0117.xml
article
131
131
Science & Industry
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Pilot Ejected in Pod...
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A new Navy ejection cockpit capsule, completely enclosed, pressurized, and insulated, will enable pilots to escape from supersonic planes at high altitude. A lever releases the pod, as shown at right. 2 As the pod-and-pilot is blown free of the speeding plane, stabilizing tail fins are extended to prevent the capsule from tumbling through the air during descent.
PopularScience_19500501_0156_005_0118.xml
article
132
132,133
Science & Industry
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Land Boats Sail 50 M.P.H.
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DRY-LAND yachting provides exciting sport for Palm Springs, Calif., enthusiasts, who boast a fleet of six fast land "sailboats." The novel craft were designed and built by Ray Miller, one-time musician and NBC musical director. While they will run on hard sand or dirt, best sailing is along concrete strips of a nearby Air Force base, now largely abandoned.
PopularScience_19500501_0156_005_0119.xml
article
134
134,135
Science & Industry
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Sub Fires Guided Missile
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PopularScience_19500501_0156_005_0120.xml
article
136
136,137
Science & Industry
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Sports-Car Kit for Building Your Own
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EVERYTHING comes in kits these days— television sets, furniture, even houses —so why not a car? That’s just what Frank Kurtis thought one day as he tuned up racers for the Indianapolis Speedway. Not only would it cut the cost of the car, but it would let the tool-happy tinkerer add a few ideas of his own.
PopularScience_19500501_0156_005_0121.xml
article
138
138,139
Science & Industry
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Cement Replaces Rivets in B-36
Now Cough, Please
Strobe Photo Tests Brush
Hand Truck Also Lifts
Plastic Tape Insulates, Protects
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APAIR of new synthetic-rubber compounds is taking the place of thousands of rivets in the Air Force’s far-ranging B-36 bomber, saving weight and smoothing its skin. Used in Consolidated-Vultee’s Metlbond process, they stick metal parts together better than rivets or spot welding.
PopularScience_19500501_0156_005_0122.xml
article
140
140,141,142,143
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NEW Clinic Gives Cars Family-Doctor Care
Staffed with Gus Wilsons, this place is a multiple one-man shop, where the customer talks with his own mechanic.
Mechs Are De Luxe, Too
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James Poling
TAKE a dozen or so one-man auto repair shops, locate them side by side under one management, and you’ve got something new in service stations. This, in effect, is what you’ll find at a big shop recently opened in New York City. Every man who works there is an all-around mechanic, well qualified to give Gus Wilson a run for his money.
PopularScience_19500501_0156_005_0123.xml
article
144
144,145
Science & Industry
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Electronic "Crew" Mans Lightship
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A DESERTED ship will soon stand guard over the southern approaches to New York Harbor. An experimental new Coast Guard lightship, named the Exp, it is completely unmanned. Instead, it has a "crew" of electronic devices operating automatically or controlled by radio from shore.
PopularScience_19500501_0156_005_0124.xml
article
146
146
Science & Industry
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Desk and Office Built in One Unit
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OFFICE furniture is one of the few things the Du Pont Company does not make. But, faced with the problem of getting more comfort and utility out of big, open "bullpen" offices, the chemical concern's engineers tried their hands at that, too. And they came up with an unusual desk unit that is a whole semi-private office for one man.
PopularScience_19500501_0156_005_0125.xml
article
147
147,148
Science & Industry
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Army Splits a Truck in Two
Canada Tests Jet Fighter
Sharp Needles Engrave Letters 1/2,000-in. high
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THE Army's 2½-ton truck is a pretty solid piece of equipment. But the type shown above is different. To ride in aircraft with airborne troops, it has to come apart. After the frame has been cut just behind the cab, tie plates are welded to each of the frame halves and bolted together for normal use.
PopularScience_19500501_0156_005_0126.xml
article
149
149
Science & Industry
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Electric Ump Calls Strikes
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HERE'S an umpire even a Dodger can't talk back to. General Electric developed the electronic version of the man in blue for the Brooklyn spring-training camp. A metal box, about four feet long, 2l inches wide, 1½ inches deep, encases home plate.
PopularScience_19500501_0156_005_0127.xml
article
150
150,151,152,153,154,155
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Canned Horsepower
Mighty midgets called hydraulic accumulators deliver stored mechanical energy to lighten heavy tasks.
Snubbing Bumps Another Job
Soils Test Mine Detectors
Hot Torch Has "Co1d" Flame
Scoop Retrieves Golf Balls
Tube Protects Roof Gutter
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Myron Stearns
ARUBBER balloon in a steel cylinder is rapidly earning a reputation as one of the most useful modern inventions. Called a hydraulic accumulator, it is a simple but highly ingenious power package that puts the strength of Hercules at your service.
PopularScience_19500501_0156_005_0128.xml
article
156
156,157
Science & Industry
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New Mud Bricks Are Waterproof
Big Plow Digs Deep Furrows
Plastic Cap Corks Bottle
Boat Folds Into Back Pack
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ADOBE-sun-dried mud-is a fine building material, so long as it doesn't rain. Too much water can turn it back into mud. But now adobe can be made waterproof. The secret is Bitudobe, a sticky chemical technically termed an emulsified asphalt stabilizer.
PopularScience_19500501_0156_005_0129.xml
article
158
158,159,160,161
Science & Industry
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Lou Meyer Builds New Engine for Indianapolis "500"
Escape Suit for Sub Crews
"S1ingshot" Throws Practice Soccer Balls
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T AKE a good look at the engine being put together on these pages. Come Me morial Day, it may win the 500-mile race at Indianapolis. - - - If it does, the engine will be another feather in the cap of Lou Meyer, first three time winner of the big race. His firm, Meyer and Drake, of Los Angeles, designed and built the engine.
PopularScience_19500501_0156_005_0130.xml
article
162
162,163,164,165,166,167
40-Second Drama:
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What Happens When You Pull a Fire Alarm
Here’s how the bright red boxes send the right engines to the right place —in less than a minute.
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Herbert Johansen
LAST year New York citizens turned in more than 60,000 fire alarms. Yet probably not one out of a thousand of those who pulled alarm boxes had any idea of the complicated mechanisms, electronic devices, and human activity he set in motion to start fire equipment rolling within 40 seconds.
PopularScience_19500501_0156_005_0131.xml
article
168
168,169
Aids to Modern Living
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Aids to Modern Living
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Shelf Swings Down. For installation over a conventional closet shelf, this auxiliary ledge can be pulled forward and downward so you can reach it, as shown in inset above. Space Saver Industries, of Detroit, sells cadmium-plated shelf hinges and a handle, which are screwed to a 10-inch board.
PopularScience_19500501_0156_005_0132.xml
article
170
170,171,172
Science & Industry
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Radios Whisper Cues to Actors
FM Radar Helps Planes Survey Ground Elevation
Air Power—Midget Division
This TV Set Cooks, Too
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EVER since talkies made the movie directors give up their megaphones for shouting stage directions, they’ve been longing to get them back. Now two Paramount Pictures sound engineers have developed a 1950-model “megaphone” that lets a director prompt actors—yet keeps his cues out of the sound track.
PopularScience_19500501_0156_005_0133.xml
article
173
173,174
Keeping the Home Shipshape
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Keeping the Home Shipshape
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If you store children’s socks and stockings in egg cartons, you can tell at a glance how many pairs are clean and ready for use. Cut the cover off the carton first. For efficient protection against moths, drill three holes in your wooden coat hangers and place a moth ball in each hole.
PopularScience_19500501_0156_005_0134.xml
article
175
175
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Mechanics and Handicraft
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PopularScience_19500501_0156_005_0135.xml
article
176
176,177,178,179,180
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Gus and the Bewitched Brakes
A heat treatment teaches Mr. Pennypincher that you can’t be tight when it comes to brakes.
Jerry Makes a Proposition
They’d Just Been Checked
No Leaks and No Air
Freezing Isn’t the Answer
Brake Fluid on the Hot Plate
New Engine for Dodge Trucks
Homemade Jet Propels Auto
Silas Boils Easily
The Vapor Vanishes
Hydraulic Ram Straightens Damaged Car Frames
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Martin Bunn
SERGEANT Jerry Corcoran sat on his motorcycle parked just off the hilly main highway from the north where it crosses what we townspeople call “the outer road.” He had just about decided it was time to go to a call box up the hill and make his afternoon report to the state police barracks.
PopularScience_19500501_0156_005_0136.xml
article
181
181,182
Hints from the Model Garage
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Hints from the Model Garage
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Stopping a Radiator Leak. When a leak developed in one cell of his honeycomb type of radiator, Joseph C. Cappetta, New Haven, Conn., stopped it as shown. The brass pin must be longer than the depth of the cell. The rubber washers seal the leak.
PopularScience_19500501_0156_005_0137.xml
article
183
183,184,185
Mechanics & Handicraft
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What You Should Know About Towing a Trailer
One Plug Connects Two Lights
Stop Light from Coffee Can
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R. P. Stevenson
YOUR car was designed and built primarily to haul passengers, not to tow a heavy trailer coach. That it can and will do the towing job too is an extra dividend tossed in your lap. But as the car stands, it’s not ready for the job. You must take up where the designers left off.
PopularScience_19500501_0156_005_0138.xml
article
186
186,187
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For Solid Comfort Build This Magazine and Smoking Stand
Drying Reel for Fishing Line Clamps to Rod
Magnet Latches Cabinet Door
Doorstop Has Spring Cushion
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WITH this stand beside your easy chair, both your smokes and favorite magazines are within an arm’s length. It’s built of clear white pine, stained and waxed. You have your choice of joints—rabbet, miter, or butt—held together with dowels and glue.
PopularScience_19500501_0156_005_0139.xml
article
188
188,189
Mechanics & Handicraft
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Kitehen Oven Cooks Ceramics
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MANY a craftsman has been prevented from making ceramics by the cost of a high-temperature kiln. But nowadays you can get synthetic clays that can be “fired” or matured in a kitchen oven at temperatures from 150° to 300°. There is no odor, and the use of a kitchen oven for this purpose is not dangerous.
PopularScience_19500501_0156_005_0140.xml
article
190
190
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Mother's Day Gift... A Table or Tray
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MOTHER will be proud to receive either one of these gifts—the coffee table with mirror top or the gleaming aluminum tray with polished hardwood handles. Both are simple projects. Table. Dimensions of the top depend on the mirror—in this case an inexpensive 14" by 20" size.
PopularScience_19500501_0156_005_0141.xml
article
191
191,192
Mechanics & Handicraft
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Plastic Craftwork Everyone Admires
Combination Tool Is Complete Plastic Workshop
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AS THRILLING a craft material as acrylic plastic is, it’s doubly so when used for out-of-the-ordinary projects like these. The lighter above demonstrates a new technique in sealing photo cutouts into acrylic objects. Below is a vanity-table accessory that will strikingly display your skill in internal carving.
PopularScience_19500501_0156_005_0142.xml
article
193
193
Mechanics & Handicraft
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Sliding Bottom Empties This Wastebasket Fast
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IF YOU’RE tired of emptying wastebaskets by the handful, you’ll appreciate the cleanliness and convenience of this basket. It looks like any other handsome waste receiver, but the sliding bottom pushes the contents out in a jiffy. The basket shown, built of stock-size lumber, is convenient for most rooms.
PopularScience_19500501_0156_005_0143.xml
article
194
194
Mechanics & Handicraft
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Trestle Table Boilt of Pine
Key-ring Screwdrivers
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HERE’S a rugged, good-looking table that’s a little bit different from the usual cocktail table. It’s made of clear white pine, stained, and given three coats of wax. The top is glued up to get the proper width. There’s a half-lap joint where the legs cross.
PopularScience_19500501_0156_005_0144.xml
article
195
195
Mechanics & Handicraft
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Tool Cuts Perfect Circles in Glass
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EVER need a glass disk—for a circular picture frame, instrument dial, or perhaps a flashlight lens? With this simple, inexpensive tool you can make such cutouts. You can use it with the pipe bracket shown above, or you can chuck it in a drill press.
PopularScience_19500501_0156_005_0145.xml
article
196
196,197,198,199,200
Mechanics & Handicraft
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Soundproofing Your Shop
If the siren sound of a circular saw or the thump of a jigsaw makes your shop a nuisance, here’s what you can do.
Basement Easiest to Soundproof
Retrieves Snagged Plugs
Nylon Reinforces Plane Wings
Family Wash Hangs High on Junked Auto Parts
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[no value]
Arthur C. Miller
DOES your family complain when you run your bench saw late at night? Have you been kept from enjoying your shop by someone’s illness? Or are you getting along without power tools because you live in an apartment and don’t want to annoy the neighbors?
PopularScience_19500501_0156_005_0146.xml
article
201
201
Mechanics & Handicraft
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Electric Shaver for Your Lawn
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IT’S HARD to work up a sweat with this mower, but mighty easy to trim your lawn. With a motor spinning the cutting reel, pushing the mower where the grass grows greenest is as easy as taking a stroll. The electric motor is pivot-mounted on the front tie bar.
PopularScience_19500501_0156_005_0147.xml
article
202
202,203,204,205
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How to 'Expand' an Attic Without a 2nd Mortgage
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DOES your home have what the realestate agents glibly call an “expansion attic”? Poorly lighted and ventilated by undersized windows at each end? Adding a peaked-roof dormer to put an extra bedroom, den, or playroom into that attic space is likely to be difficult and expensive.
PopularScience_19500501_0156_005_0148.xml
article
206
206,207
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Magnetic Broom Reaches Where You Can't
Easy Way to Save Water
You Can Get in Picture Too
Gears Swing Tripod head
Knife Trays Hold Slides
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[no value]
walter E. Burton
WITH a magnetic broom, you can quickly recover bolts, washers, tools, and other bits of ferrous metal from hard-toreach places. It can be used, also, to separate iron or steel from nonmagnetic material, and to pick up and carry small parts. This battery-powered model, which can be made in an evening, is better for these jobs than permanent-magnet rigs, since it can be shut off to permit easy removal of filings and scrap.
PopularScience_19500501_0156_005_0149.xml
article
208
208
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Old Lantcrn Makes Rustic Lamp
Thread Sealer Comes in Stick
Helicopter Walks the Ceiling
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FOR a summer cabin or hunting camp, a lamp like this one is more appropriate than one with a frilly shade. I used an old brakeman’s lantern and a second-hand bridgelamp stand. First remove the wick and oil reservoir from the lantern, then cut the bottom out.
PopularScience_19500501_0156_005_0150.xml
article
209
209,210,211,212
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This Tractor Cost Only $50
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SOON after Paul E. Matous completed his $50 tractor, a friend’s automobile got stuck in the mud. “As a gag, he yelled to me to come and pull him out,” says Matous, a building contractor at Orangeburg, N. Y. “He thought I couldn’t possibly move the car.”
PopularScience_19500501_0156_005_0151.xml
article
213
213,214,215
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8 of the Many Ways To Build a Fence
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A GOOD-LOOKING fence helps make a house a home. But the fence must suit the house. Look these over - and those on the next two pages-before you roll up your sleeves. To forestall rotting, always creosote the bottom offence posts, whether they are set in soil or masonry.
PopularScience_19500501_0156_005_0152.xml
article
216
216,217,218
NEW SHOP IDEAS
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NEW SHOP IDEAS
Four Photos on One Film
Title Movies on the Spot
Trays Drain in Roof Gutter
The Height of Ingenuity
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Put together in a few minutes, this wiggler indicator does a good job of centering punch marks on work in the four-jaw or on a faceplate. The needle is 1/8 drill rod, ground to a 60° point at one end and a long taper at the other. A collar with a convex face is driven on, this face away from the point.
PopularScience_19500501_0156_005_0153.xml
article
219
219
Mechanics & Handicraft
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Mother’s Day Photo Problem
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WHICH of these three pictures is the best photo for Mother’s Day? All three were taken by W. W. Morris, POPULAR SCIENCE chief photographer. One illustrates many of the mistakes amateurs often make. Another focuses the attention in the wrong way for the occasion.
PopularScience_19500501_0156_005_0154.xml
article
220
220,221,222,223
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How to Make Dovetail Joints
COMMON SINGLE DOVETAIL
LAPPED DOVETAIL
HALF-LAP DOVETAIL
MULTIPLE DOVETAILS
HALF-BLIND JOINT
DOVETAILED CLEAT
HOUSED DOVETAIL
BLIND SQUARE-LAPPED DOVETAIL
BLIND MITERED DOVETAIL
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Edwin M. Love
NO JOINT surpasses the dovetail in strength and reliability. Named for its resemblance to the spreading tail of a dove, it consists of a wedge-shaped pin locked in a socket. Such a joint has rigid strength independent of the holding power of glue.
PopularScience_19500501_0156_005_0155.xml
article
224
224
Mechanics & Handicraft
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Want Ice Water on Tap This Summer?
Here are two ways to get it.
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RUNNING ice water sounds de luxe—and it is. It’s also one of the most economical luxuries you can name. You save all around when you draw cold water from a tap without opening the refrigerator door: • You save water: No need to run it till it gets cold.
PopularScience_19500501_0156_005_0156.xml
article
225
225
CRAFTSMEN AT WORK
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CRAFTSMEN AT WORK
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Junior Tractor for Junior. Ross W. MaY, of Acampo, Calif., built this half size model of a tractor for his son. It's the spittin' image of the real thing. A 1¾-hp. Briggs and Stratton engine supplies the power. The transmission is a two-speed one taken from a motor scooter.
PopularScience_19500501_0156_005_0157.xml
article
226
226,227
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Make TV Pictures Sound Better
This push-pull stage can be hooked to any receiver. It by-passes the tiny speaker, takes advantage of set's FM sound.
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PULLING pictures out of the air seems to have dulled the ears of many Americans to the sound accompanying those pictures. If you look inside a table-model teleset, you'll probably see a 3to 5-inch loudspeaker fed by a single output tube-just about what you'd get in a cheap AC-DC radio
PopularScience_19500501_0156_005_0158.xml
article
228
228,229,230
Mechanics & Handicraft
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Print Your Own Road Map
Crayon Renews Lens Markings
Mower Pulls Seat and Roller
Holder for Stubby Pencils
Lightning Arrester for TV
Phone Jacks Made of Tubing
Enlarging Your TV Pictures
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WANT to direct visitors to your house without once gesturing or saying "You can't miss it"? Give them a photo-print map made from a carbon-paper negative. The essential gimmick is a fresh sheet of one-shot carbon paper, the kind used in sales books.
PopularScience_19500501_0156_005_0159.xml
article
231
231,232,233
Mechanics & Handicraft
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Are You Using Chassis Punches?
They make big holes—round or rectangular—out of little ones•
Enlarges TV Pix on Demand
Screwdriver Pulls Tight Tubes
Double Twist Improves Stylus
The Height of Ingenuity
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ONCE you graduate from the breadboard stage of radio building you sometimes run into metal-working problems that are tougher and more time-consuming than the wiring itself. The job of cutting holes in a chassis to take tube sockets, filter condensers, transformers, meters and the like can be a poser if your shop lacks an important yet simple piece of radio-making equipment.
PopularScience_19500501_0156_005_0160.xml
article
234
234
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I'd like to see them make... •
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Everybody has his own pet idea of some gadget he would like to see in general use. What is YOURS? Popular Science will pay $5.00 for each one published. Use government postcards only. Contributions cannot be acknowledged or returned. Fishing-tackle box with a built-in, doubleended flashlight.
PopularScience_19500501_0156_005_0161.xml
article
235
235,236,237
Mechanics & Handicraft
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Update That Old Upright
Cutting down the box makes a bulky piano as attractive as a spinet in a modern living room.
Tool Digs, Covers Furrows
Portable Sprinkler System
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Ralph Treves
OLD upright pianos often have better tones—and cost much less—than small spinet-style ones. If you’re handy with tools, you can reduce the bulk of an old piano and make it look as attractive in your living room as a new model. And you don’t have to tamper with the action of the piano.
PopularScience_19500501_0156_005_0162.xml
article
238
238
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Eight Uses for Old Package Handles
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IF YOU’VE accumulated a number of old bundle grips, here are a few ways you can put them to use. The container for needles or pins is made by cutting off a section of the tube and gluing a piece of dowel in it to form a cap. The skipping rope is made by gluing the rope in the handles.
PopularScience_19500501_0156_005_0163.xml
article
239
239,240
Mechanics & Handicraft
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Bamboo + Boxes = Bookcases
Boxed Charcoal Saves Hands
Flower Pot Makes Lamp Uase
Hose and Sun Heat Water
Lamp for Lawn Umbrella
Corn Popper Roasts Wieners
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SIX wooden boxes, an equal number of 6-foot bamboo poles, and a roll of tropical matting provide the materials for this bookcase. The tools you need are a hammer, scissors, saw, and drill. Use a fine-toothed saw to cut the bamboo. A hacksaw will do.
PopularScience_19500501_0156_005_0164.xml
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241
241
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EASTMAN KODAK COMPANY
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EASTMAN KODAK COMPANY
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[no value]
PopularScience_19500501_0156_005_0165.xml
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242
242
[no value]
[no value]
NICHOLSON FILE COMPANY
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NICHOLSON FILE COMPANY
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[no value]
PopularScience_19500501_0156_005_0166.xml
article
242
242,244
[no value]
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Mechanics of Farming
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Ladd Haystead
Surprising even to farmers is the finding of a recent U. S. Dept, of Agriculture survey that one out of four farms in the country has a trailer. Nearly half have either a truck or a trailer. These carry 45 percent of all farm tonnage to market. Another 30 percent is hauled by hired equipment; 22 percent, on buyers’ equipment.
PopularScience_19500501_0156_005_0167.xml
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243
243
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Winning Fresh Laurels
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PopularScience_19500501_0156_005_0168.xml
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244
244
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MILLERS FALLS COMPANY
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MILLERS FALLS COMPANY
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[no value]
PopularScience_19500501_0156_005_0169.xml
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245
245
[no value]
[no value]
Advertisement
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PopularScience_19500501_0156_005_0170.xml
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246
246
[no value]
[no value]
PYROIL COMPANY
[no value]
PYROIL COMPANY
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PopularScience_19500501_0156_005_0171.xml
article
246
246,248
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Army Offers Films For Free Showing
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THE U. S. Army has many 16-mm. sound films available for nonprofit, nontheatrical, educational screenings. The following titles are among those that may be borrowed from your nearest Army Area headquarters. Previous issues of PS have listed films from the Navy and Air Force
PopularScience_19500501_0156_005_0172.xml
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247
247
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EVINRUDE MOTORS
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EVINRUDE MOTORS
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[no value]
PopularScience_19500501_0156_005_0173.xml
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248
248
[no value]
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THE SIMONIZ COMPANY
[no value]
THE SIMONIZ COMPANY
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PopularScience_19500501_0156_005_0174.xml
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249
249
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U. S. ARMY
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U. S. ARMY
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PopularScience_19500501_0156_005_0175.xml
article
250
250,252,254,256,258
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BUILD A BUNKROOM REMODEL THE ATTIC with the WESTERN PINES
Kit Modernizes Old Lamps
Auto Fuel Pump Bails Bilge
Machine Makes Cement Blocks
Cast Iron Bends and Twists
How Old Is Sandpaper?
Tipped File Saves Fingers
Drill Runs Hodge Trimmer
Tipless Porter Lugs Luggage
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Rugged, he-man quarters for your young buckeroos are a cinch to build with colorful, easy-to-work Western Pines*. Or turn an idle attic into a cozy and hospitable guest room by building double-deck beds of these attractive, economical woods.
PopularScience_19500501_0156_005_0176.xml
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251
251
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J. C. Adams Co
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J. C. Adams Co
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PopularScience_19500501_0156_005_0177.xml
advertisement
252
252
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LUMITE DIVISION,
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LUMITE DIVISION,
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PopularScience_19500501_0156_005_0178.xml
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253
253
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Advertisement
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PopularScience_19500501_0156_005_0179.xml
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254
254
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DUCO CEMENT
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DUCO CEMENT
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[no value]
PopularScience_19500501_0156_005_0180.xml
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254
254
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NATIONAL GYPSUM COMPANY
[no value]
NATIONAL GYPSUM COMPANY
[no value]
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[no value]
PopularScience_19500501_0156_005_0181.xml
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255
255
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HASTINGS MANUFACTURING COMPANY
[no value]
HASTINGS MANUFACTURING COMPANY
[no value]
[no value]
[no value]
PopularScience_19500501_0156_005_0182.xml
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256
256
[no value]
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Purolator Products, Inc.
[no value]
Purolator Products, Inc.
[no value]
[no value]
[no value]
PopularScience_19500501_0156_005_0183.xml
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257
257
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Rockwell Manufacturing Company
[no value]
Rockwell Manufacturing Company
[no value]
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[no value]
PopularScience_19500501_0156_005_0184.xml
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258
258
[no value]
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UNITED STATES PLYWOOD CORPORATION
[no value]
UNITED STATES PLYWOOD CORPORATION
[no value]
[no value]
[no value]
PopularScience_19500501_0156_005_0185.xml
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259
259
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GROBAN SUPPLY CO
[no value]
GROBAN SUPPLY CO
[no value]
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[no value]
PopularScience_19500501_0156_005_0186.xml
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260
260
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I FOLEY MFG. CO.
[no value]
I FOLEY MFG. CO.
[no value]
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[no value]
PopularScience_19500501_0156_005_0187.xml
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260
260
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Patent Cereals Co.
[no value]
Patent Cereals Co.
[no value]
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PopularScience_19500501_0156_005_0188.xml
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260
260
[no value]
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MODERN MFG. CO.
[no value]
MODERN MFG. CO.
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[no value]
PopularScience_19500501_0156_005_0189.xml
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261
261
[no value]
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WHIZZER MOTOR CO.
[no value]
WHIZZER MOTOR CO.
[no value]
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[no value]
PopularScience_19500501_0156_005_0190.xml
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261
261
[no value]
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ALUMINUM COMPANY
[no value]
ALUMINUM COMPANY
[no value]
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[no value]
PopularScience_19500501_0156_005_0191.xml
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262
262,263
[no value]
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SHOPSMITH
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SHOPSMITH
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PopularScience_19500501_0156_005_0192.xml
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264
264
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Advertisements
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PopularScience_19500501_0156_005_0193.xml
advertisement
265
265
[no value]
[no value]
Advertisements
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PopularScience_19500501_0156_005_0194.xml
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266
266
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Advertisement
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PopularScience_19500501_0156_005_0195.xml
advertisement
267
267
[no value]
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UNIVERSAL ENTERPRISES
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UNIVERSAL ENTERPRISES
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[no value]
PopularScience_19500501_0156_005_0196.xml
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267
267
[no value]
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Manufacturing Co.
[no value]
Manufacturing Co.
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PopularScience_19500501_0156_005_0197.xml
advertisement
267
267
[no value]
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E. B. PACKARD CO..
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E. B. PACKARD CO..
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PopularScience_19500501_0156_005_0198.xml
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267
267
[no value]
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TOUGH-FILM PENNZOIL
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TOUGH-FILM PENNZOIL
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[no value]
PopularScience_19500501_0156_005_0199.xml
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268
268
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Advertisements
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PopularScience_19500501_0156_005_0200.xml
advertisement
269
269
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Advertisements
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PopularScience_19500501_0156_005_0201.xml
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270
270
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SHAW MFG. CO.
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SHAW MFG. CO.
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PopularScience_19500501_0156_005_0202.xml
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270
270
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CARLSON & SULLIVAN, INC.
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CARLSON & SULLIVAN, INC.
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PopularScience_19500501_0156_005_0203.xml
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270
270
[no value]
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BEAVER MFG. CO.
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BEAVER MFG. CO.
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[no value]
PopularScience_19500501_0156_005_0204.xml
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270
270
[no value]
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WELDERS SUPPLY Co.
[no value]
WELDERS SUPPLY Co.
[no value]
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[no value]
PopularScience_19500501_0156_005_0205.xml
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271
271
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[no value]
Advertisements
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DREMEL MFG. CO.
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[no value]
PopularScience_19500501_0156_005_0206.xml
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271
271
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HUNTINGTON AVENUE,
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HUNTINGTON AVENUE,
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[no value]
PopularScience_19500501_0156_005_0207.xml
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271
271
[no value]
[no value]
Division of Interchemical Corporation
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Division of Interchemical Corporation
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[no value]
PopularScience_19500501_0156_005_0208.xml
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272
272
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[no value]
Advertisements
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PopularScience_19500501_0156_005_0209.xml
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273
273
[no value]
[no value]
SNAP-ON TOOLS CORPORATION
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SNAP-ON TOOLS CORPORATION
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PopularScience_19500501_0156_005_0210.xml
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273
273
[no value]
[no value]
SMOOTH-ON MFG. CO.,
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SMOOTH-ON MFG. CO.,
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PopularScience_19500501_0156_005_0211.xml
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273
273
[no value]
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NICHOLS WIRE & ALUMINUM CO.
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NICHOLS WIRE & ALUMINUM CO.
[no value]
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[no value]
PopularScience_19500501_0156_005_0212.xml
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274
274
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Advertisements
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PopularScience_19500501_0156_005_0213.xml
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275
275
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Advertisements
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PopularScience_19500501_0156_005_0214.xml
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276
276
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Advertisements
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PopularScience_19500501_0156_005_0215.xml
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277
277
[no value]
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BURDEN SALES COMPANY
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BURDEN SALES COMPANY
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[no value]
PopularScience_19500501_0156_005_0216.xml
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277
277
[no value]
[no value]
BROWNSCOPE Co.
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BROWNSCOPE Co.
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[no value]
PopularScience_19500501_0156_005_0217.xml
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277
277
[no value]
[no value]
FOUR-WAY WELDER CO.
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FOUR-WAY WELDER CO.
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PopularScience_19500501_0156_005_0218.xml
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277
277
[no value]
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ALLIED RADIO CORP.
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ALLIED RADIO CORP.
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[no value]
PopularScience_19500501_0156_005_0219.xml
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278
278
[no value]
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KAYTEE PRODUCTS,
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KAYTEE PRODUCTS,
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[no value]
PopularScience_19500501_0156_005_0220.xml
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278
278
[no value]
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THE MOTO MOWER COMPANY
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THE MOTO MOWER COMPANY
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PopularScience_19500501_0156_005_0221.xml
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278
278,279
[no value]
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PALLEY SUPPLY CO.
[no value]
PALLEY SUPPLY CO.
[no value]
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[no value]
PopularScience_19500501_0156_005_0222.xml
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280
280
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Advertisements
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PopularScience_19500501_0156_005_0223.xml
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281
281
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WELLWORTH TRADING CO.
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WELLWORTH TRADING CO.
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[no value]
PopularScience_19500501_0156_005_0224.xml
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281
281
[no value]
[no value]
Jim glass and Glue Co.
[no value]
Jim glass and Glue Co.
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[no value]
PopularScience_19500501_0156_005_0225.xml
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281
281
[no value]
[no value]
GLEAM PRODUCTS
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GLEAM PRODUCTS
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[no value]
PopularScience_19500501_0156_005_0226.xml
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282
282
[no value]
[no value]
Advertisements
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BLACK & DECKER Mfg., Co.
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[no value]
PopularScience_19500501_0156_005_0227.xml
review
282
282,283,284,285
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New Tools
Toggle Action Locks C Clamp.
Electric Paint Remover.
Variable Speed Changer.
flit and Saw Combined.
Tool Drills Glass.
Screw-Pitch Gauge.
NEW GRINDING WHEELS.
Oailip Holds Doors.
J. Kelly Mfg. Co.
[no value]
J. Kelly Mfg. Co.
[no value]
$2.50
These clamps, made by the Robert J. Kelly Mfg. Co., Waterford, Conn., can be quickly snapped on or off work. After the spindle is adjusted for the approximate thickness of the work, the clamp is slipped into place and the locking arm closed. The holding force is 600 lb. Prices range from $2.50 to $3.95, depending on the size of the clamp. The company also makes a welding c1amp that has an undercut, removable spindle and a copper welding shroud.
J. Kelly Mfg. Co.
Electric Paint Remover.
$5
Heat from a resistance element in the blade of this tool blisters and softens old paint so it may be peeled off as you push the tool back and forth. It operates on 115-volt AC or DC, weighs ¾ lb., has an 8' cord, and is 12" overall. The maker is Lectro Weld, Inc., of Cleveland, Ohio. The tool removes old paint down to the bare wood in one operation but will not scorch the surface of the work. Price is about $5.
J. Kelly Mfg. Co.
Variable Speed Changer
With the Vari-Speed Jr. you can change speeds on workshop tools without stopping the machine. Turning the handwheel moves the motor forward or backward. This causes the belt to ride in or out on the two conefaced disks on the motor shaft, changing the effective pulley diameter and therefore the speed. One disk moves laterally under spring tension as the belt rides in or out. Reeves Pulley Company, of Columbus, Ind., makes the unit to fit motors from 1/8 to 1½ hp.
J. Kelly Mfg. Co.
[no value]
The end of the Cope-Saw is used to drill through wood, plastic, or sheet metal. Then the inner part of the bit is pressed sideways against the hole, sawing along the stock in any direction. The International Twist Drill Corp., of Kansas City, Mo., sells the tool, which is made of high-speed steel. It fits any standard drill press or ¼ electric drill.
J. Kelly Mfg. Co.
Tool Drills Glass
$1.90
This hand drill for glass, plus a bottle ot cutting fluid, is sold for $1.90 by the Smith Engineering and Tool Co., of Glen Ridge, N. J. In use, the tool is held as you'd hold a screwdriver. You twist it back and forth, using light pressure and applying cutting fluid as needed. The tool also is available without the handle so it can be chucked in a drill. It comes in four sizes-8/1", ¼", 3/8", and ½". The tool also will drill tile. When used in a power tool, the slowest speed is recommended.
J. Kelly Mfg. Co.
Screw-Pitch Gauge.
$1.50
Here's a sim pie gauge to measure the pitch of screw threads from 8 to 48 t.p.i. You press the screw on the grooves and move it along until the pitch of the grooves coincides with the pitch of the screw. The screw drops into engagement with the gauge grooves at that point, indicating the number of threads per inch. The tool is priced at $1.50 by the O-Vee Spring Gauge Co., of Los Angeles. These wet grindstones have a constant rim speed even after the wheel wears down with use. A self-adjusting friction roller drives against the rim of the wheel, increasing its speed as the wheel wears, so that a rim speed of 280' per minute is maintained. The Boice-Crane Company, Toledo. Ohio, is the maker. One model has two grindstones—one coarse and the other fine—driven by a single motor. The hand-operated model is for field use.
J. Kelly Mfg. Co.
[no value]
Drop-Klamp© holds a door, window, sheet of plywood, or any flat object. The weight of the work wedges it firmly for planing, sawing; hinge and lock work, or fitting doorknobs. Fiber liners prevent marring of finished surfaces. The small board on which the clamp is mounted is not a part of the unit. The clamp is made of 12-eauge steel by the Lakeshore Mfg. Co., Minneapolis. About $5.
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PopularScience_19500501_0156_005_0228.xml
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283
283
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PopularScience_19500501_0156_005_0229.xml
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284
284
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GILLIOM POWER TOOLS St
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GILLIOM POWER TOOLS St
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PopularScience_19500501_0156_005_0230.xml
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284
284
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ATLAS PRESS COMPANY
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ATLAS PRESS COMPANY
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PopularScience_19500501_0156_005_0231.xml
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285
285
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THE UPSON COMPANY
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THE UPSON COMPANY
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PopularScience_19500501_0156_005_0232.xml
article
286
286
P.S. Last minute news & notes...
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P.S. Last minute news & notes...
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NEWBORN ELEMENT. University of California scientists, who only recently announced discovery of berkelium, element No. 97 (PS, March, '50, p. 298), have now discovered element No. 98. They propose to name it "californium," in honor of the university and state.
PopularScience_19500501_0156_005_0233.xml
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287
287
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[no value]
FORD
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FORD
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PopularScience_19500501_0156_005_0234.xml
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288
288
[no value]
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PopularScience_19500501_0156_005_0235.xml
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289
289
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Yellow Cab Co.
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Yellow Cab Co.
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PopularScience_19500501_0156_005_0236.xml
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290
290
[no value]
[no value]
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PopularScience_19500501_0156_005_0237.xml