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 505
njury. ELECTRO-PLATING 3,159 For example: the tanks for holding gold plating solutions should beimpervious to the action of potassium cyanide at a temperature of 150to 180 degrees Fahr. Tanks for nickel plating solutions should belined with a mixture of asphaltum and pitch. Wooden tanks for… … Fig. 4,559.—Wood tank for scouring, rinsing, and hot water. It is fitted with an overflowand outlet stand pipe made with a brass plug and taper socket. The socket should extendbelow the bottom of the tank, allowing for a threaded or wipe joint connection. For hotwater a single compartment tank is…
Electrical engineering
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