The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 51
X 1411 X l^O. ••• Since, the work due to P and W are equal during one re-volution of L, neglecting friction, ~ X 3.1416 X W =: ^ X 3 X 3.1416 X 1^6, .•. i W= If X 3 X 120.W = 916 A lbs. COMPOUND WHEEL AND AXLE. In the common wheel and axle, there is a practical limitto the power of the machine ;… … This machine consists of two axles, A and C, cut upon PRACTICAL MACHANICS. 47 the same block, round which a cord coils in opposite direc-tions ; this cord passes round the moveable pulley D, whichcarries tbe w^eight W. Now if the handle be turned, oneof the cords is coiled upon the large axle A,…
Mechanics, Applied
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
