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 385
. Unpacking.—When removing a lamp from its packing box be verycareful not to strain any part of its mechanism, and after it has beenremoved, if possible, hang it up at once. Never allow the lamp to reston any part of its mechanism, and if it cannot be hung up at once, layit down on its side. After… … Fig. 3,404.—Carbon plyers. Carbons may be cut to any desired length by simply nickingthem all around and breaking them like a glass tube. For this operation the carbon isplaced in the circular opening of the plyers in such position that the nicking comes flushwith the side of the plyers. The glass…
Electrical engineering
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