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 441
r being added to make apaste. The compound is placed between the parts to be united, as muchsurface as possible being brought in contact, the two being held firmlytogether, in the case of small pieces by tongs, and heated until the fluxand spelter are melted, the parts being held together until the… … OXYDIZING BLUECONE CANDLE Fig. 4,464.—Method of using the mouth blow pipe. This is for small work, though the in-tensity of the heat thus produced is very great, the volume of flame is small. On some blowpipes a ball or enlargement is made at A to catch any moisture or saliva, thus increasingthe…
Electrical engineering
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