Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 47
95. STOP, DRIVING, AND REVERSINGMOTION with a single belt, which may be oper-ated either way : from the drum on a driving shaft,or from the bevel gear on shaft C. The middlepulley being loose on shaft a^ the right-handpulley tight on shaft a, left-hand pulley tight onthe hollow shaft B, b. The… … 96. TWO SPEED PULLEYS AND BELTS.—Two pair of tight and loose pulleys on lowershaft, unequal broad tight pulleys on upper shaft.By crossing the belt from one of the pair a quickreturn speed may be obtained. Much used ontapping-machines and planers. (^
Mechanical movements
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