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 307
type of telpher brake is used andthe hoist brake is of either the electro-mechanical or ELECTRIC CRANES 2,961 electro-dynamic types. Spur gears and chain drive on the tractortransmit the power from motor to track wheels, and either spuror worm gear is used to transmit power to the hoisting drum.… … Fig. 4,242.—Cableway. The essential elements of construction are BB towers; C, cable;D, hauling rope; E, hauling rope drum; F, hoisting rope; G, hoisting drum; H, hoistingrope slack carriers. Ques. How is the spacing between the cars regulated? Ans. Automatically by a block system. Essentials of…
Electrical engineering
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