Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 347
Fig. 711. Fig. 712. adapted for economy of power. In the wheel the teeth in section are those ofa spur wheel, cut with a chasing cutter, and in the screw turned in a lathe. Figs. 709 and 710 are two views, worm and wheel, with such lines of con-struction dotted as will explain the manner of drawing. … Fig. 711 is the Albro worm and worm wheel as used on the cruisers of theUnited States Government for ship steering and for heavy windlass work. MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. 331 Frictional Gearing.—When motion is not continuous for a long time, butfrequently stopped and started or…
Mechanical drawing
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