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 287
edistance, AC, to the weight.. Then we have evidently 2Z = ^R, or Z=2R\also Ga = 2Zb = 4Rfr. 256 EXPERIMENTAL ENGINEERING. [§ I90* If a! is the radius of the driving-pulley M, and r the radiusof each bevel-gear, r> / r> r> 2Rr G r a Pa = 2Rr, or P— —r = — - -„ a 2 b a! If friction is… … Fig. 134.—The Webber Dynamometer. These dynamometers are used in substantially the sameway as the Morin dynamometers. 190. Calibration of the Differential Dynamometer.— 1. See that it is well oiled, in good condition, its axis horizon-tal, and also that the weighing arm is horizontal for no load.…
Building materials · Machinery
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