Drill Press with Dynamometer | University of Illinois Archives
Drill Press with Dynamometer
Sepia tone photograph showing dynamometer used to determine drill performance factors. Caption indicates that the machine's maximum drilling rate was 59 inches per minute, using a 1 inch twist drill at 54 horse power.
Found in RS 11/1/10, Vol. 3
Image Measures 10.8 x 16.2 cm
University of Illinois Archives
11/1/10 Photograph Album, 1915-17
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