Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 147
t is balanced the reading is proportional to the torsionalforce or external moment transmitted through the specimen,expressed in foot-pounds, inch-pounds, or any other unitsdesired. The weighing head is suspended so as to permit freeelongation of the specimen. The chucks used have self-cen-tering… … Pig. 63.—The Riehle Torsion Machine. which are adapted to testing of specimens of varying diametersand lengths. In the Riehle machine shown, the adjustmentfor specimens of various lengths is made by moving the powerhead ; in the Olsen machine the adjustment is made by mov-ing the weighing head and…
Building materials · Machinery
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