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 349
dle by the featherkey and set screw S, and engages by the lugs to the driving pulley. Means of lubrica-tion is afforded by the oil holes r. The vanes on disc K, extend above the disc to excludedirt from the bearings, and partially relieve the downward pressure upon the disc. Thespaces above and…
Electrical engineering
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