Elements of mechanics: treated by means of the differential and integral calculus (1887)
Peck, William G[uy], 1820-1892. [from old catalog] · New York, Chicago, A. S. Barnes & company · leaf 122
F:g. SO. Pr=Rr, orP : R : : r (44.) That is, the power is to the resistanceas the radius of the axle is to ther-i<7hrs of the wheel. … U8 MECHANICS. By suitably varying the dimensions of the wheel and axle,any amount of mechanical advantage may be obtained. If we draw a straight line from the point of contact ofthe first rope and the wheel, to the point of contact of thesecond rope and the axle, the power and resistance…
Mechanics
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