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 504
Fig. 4,557.—Connections and manipulation of rheostat on large copper, brass, and bronzesolutions where variations of voltage are necessary to secure different colors. The Tanks, or Vats.—These vessels are for holding theplating solutions, and should be made of well seasoned wood, liquid 3,158… … T ~77T Fig. 4,558.—Two tank electro-plating installation showing rheostat and voltmeter connections.Use of rheostats: Rheostats are of the first importance in the plating room. Withoutthem the varying degrees of current necessary for handling different solutions, or formanipulating baths of various…
Electrical engineering
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