Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 376
n to the shaft in either direction. The clutches are similarin principle to the one shown in Fig. 23. The left-hand clutch isshown partly cross-sectioned. The ])iece A is attached to a shipjierwhich when moved to the riglit throws in the right-hand clutch;when moved to the left throws in the… … Fig. 23. in either direction according as one or the other clutch is thrownin. When A is in the position shown neither clutch is in and theshaft is at rest. SCREWS. The Helix. Since all screws depend upon a curve known as
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