Methods of machine shop work : for apprentices and students in technical and trade schools (1914)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York : McGraw-Hill · leaf 156
ckgears in order to get the required overall range of speed, therebyincreasing the belt speed on all the steps but most on the largeones where most needed. The effect of this change is greaterthan at first sight appears possible. The best method of demon-strating the effect is to calculate the… … Fig. 124.—Conventional design of cone Fig. 125.—Improved design of conepulley. pulley. Calling the highest belt speed in Fig. 124—that obtainedwith the belt on the four-inch step—100, the slowest—that onthe twelve-inch step—will be:^ 100 X A = 333To maintain the same driven-cone speed the highest…
Machine-shop practice
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