Experimental engineering and manual for testing (1903)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 80
GINEERING. [§71. on the end of the rod which actuates the poise (106), so thatthe pencil will move in a definite ratio to that of the poise.The drum is actuated by the stretch of the specimen. Thisis brought about by four fingers shown in Fig. 35, and on alarger scale in Fig. 38 by numbers 82 and… … Fig. -i-ji and connected by steel bands to the drum, 102, in such a man-ner that the resultant force-only is effective to rotate the drum.The poise is moved by a friction device attached to themain power system, which is thrown into or out of gear auto-matically by an electric current, as required…
Building materials · Machinery
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