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 284
h chare Provided with wheels and suitable gearing, so that the cranemavbe propelled bodily along the tracks which are on the ground Y Rotary bridge cranes.—Combining rotary and rectilinear mw^^ ~nsisting °f a bridge pivoted at one end to a ce^ raT plror post and supported at the other end on a… … iH^P^ Fig. 4,211.—Electrical locomotive jib crane. The essential parts are: A, jib; B, jib pivot; C, rope gear serving as a brace for jib, and which controls the radial position of jib; D, jib shifting drum; E, hoisting rope leading from hook; F, hoisting drum; G, hoistingmotor; H, framing; I, pin;…
Electrical engineering
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