Experimental engineering and manual for testing (1903)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 204
214 EXPERIMENTAL ENGINEERING. [§ 174. are rigidly connected to the outside cast-iron casing and brake-arm Py the turning effect can be balanced and measured thesame as in the ordinary Prony brake. The pressure of wateris automatically regulated by a valve V, Fig. 94, which is par- … FiG. 91.—Sfxtion Fig. 94.—Valve. tially closed if the brake-arm rises above the horizontal, and ispartially opened if it falls below ; this brake with a constanthead gives exceedingly close regulation. 174. Hydraulic Friction-brake.—The author has designeda hydraulic friction-brake that can be…
Building materials · Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
