. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. Chai. I. MECHANICS AND STATICS. :;49. Fig. 5i3. fereiices, or as the raiiii, the velocity of \V will be to the velocity of P as CA to CB ; thatis, the weight is moved as much slower as it is heavier than the power. Hence, wliat isgained in power is lost in time; a property common to machines and engines of every class. 1309. If the power do not act at right angleu to the radius CB, but obli(iiiely, drawCD perpendicular to the direction of the power,
. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. Chai. I. MECHANICS AND STATICS. :;49. Fig. 5i3. fereiices, or as the raiiii, the velocity of \V will be to the velocity of P as CA to CB ; thatis, the weight is moved as much slower as it is heavier than the power. Hence, wliat isgained in power is lost in time; a property common to machines and engines of every class. 1309. If the power do not act at right angleu to the radius CB, but obli(iiiely, drawCD perpendicular to the direction of the power, then, from the nature of the lever, p : W::CA : CD. 1310. It is to the mechanical power of the wheel and axle that belong all turning orwheel machines of different radii; thus, in the roller turning on the axis or spindleCE () by the handle CBD, the powerapplied at B is to the weight W on the roller, asthe radius of ihe roller is to the radius CB of thehandle. The same rule applies to all cranes,capstans, windlasses, &c. ; the power always beingto the weight as is the radius or lever at whichthe weight acts to that at which the power acts;so that they are always in
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