Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 207
fig. 4,115.A third form of trac-tion elevator knownas a multi-reductionor worm drive isshown in fig. 4,116,the essential featuresof each being men-tioned under the il-lustrations. By comparingthe three figures itis obvious that thedirect drive machine(fig. 4,114) is suit-able for high speedservice;… … U Z2 CAR ^/M^/^^ FlG. 4,116.—Diagram of an overmounted traction elevator with multi-reduction or wormdrive. The traction feature is identical with fig. 4,115. Attached to the driving pulleyis a gear which meshes with the worm underneath, the latter being direct connected to themotor. Clearly, the…
Electrical engineering
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