An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 371
sidered as a lever of the second kind, the weight being at C, the power acting at A, andthe prop or fixed point at B. Then, because P:W::CB: AB and CB = AB, wehave P = iW or W = 2P. 1319. From which it is manifest that when the pulley is put in mo-tion the velocity of the power is double that of…
Architecture · Architects
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