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 283
Fig. 130.—Hachettes Steelyard-dynamometer. Consideration of Friction.—The friction of the axle andgear-teeth will increase the force R and decrease the force RrLet pi be the experimental coefficient expressing this friction.Then P=i(i+»)Zr + a;Q^Hi-^Zr^t;Par, — Qbr M = Par, + Qbr 252 EXPERIMENTAL… … Fig. 131.—Pillow-block Dyna MOMETER. 187. Pillow-block Dynamometer.—The pillow-block dy.namometer operates on the same principle as the steelyard dynamometer, but no intermediatewheel is used. This dynamometer,shown in Fig. 131, consists of thefixed shaft L, which is rotated bythe power Q applied…
Building materials · Machinery
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