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 423
ld is only used for solderingarticles of platinum. The stronger the alloy of the gold, the morefusible must be the solder. Generally the gold solder is a compositionof gold, silver, and copper. If it is to be very easily melted, a littlezinc may be added. The shade of the solder is regulated by… … Fig. 4,434.—Method of wiping- a horizontal joint. The cloth used for wiping is a pad of moleskinor fustian about four inches square made from a piece twelve inches by nine, folded sixtimes, and sewed to keep it from opening; the side next the pipe is saturated with hottallow when used. If the lead…
Electrical engineering
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