A text book of elementary mechanics, for the use of colleges and schools (1881)
Dana, Edward Salisbury, 1849-1935 · New York, J. Wiley & sons · leaf 245
son the friction of the surfaces in contact (85). The velocities of the two axes, assuming that the strapdoes not slip at all, are in the inverse ratio of the radiiof the wheels, and the mechanical advantage is in thedirect ratio, as was true of the toothed wheels. Thus, in the case of the… … Fig. 156. resistance the least, when the belt passes over the largestwheel of the latter, and conversely. In general, according as the straps are or are notcrossed, the motion of the second wheel is in the sameor opposite direction to that of the first. iy. Pulley. 217. The Pulley consists of a…
Mechanics
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