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 282
ppss^ DnnmmnmmnifcnaQa u T)iT H Ej5p … Figs. 4,208 and 4,209.—Sheer legs. This is a type of lifting appliance used for handling ex-tremely heavy loads such as ships boilers and heavy guns. The load rope passes over apulley at the head of the legs A and is led to the winding drum B, which is driven by themotor C. The bottom of the back…
Electrical engineering
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