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 476
udinal seams in boats and barrels of thin plate steel.Small pieces of steel scrap are laid over the abutting edges, and by meansof the arc are raised to a welding temperature. It is usual to completethe work by hammering. Another considerable application is the making of a joint by simplyfusing the… … Figs. 4,520 to 4,525.—Davis-Bournonyille long style C welding torch It is designed formedium and heavy welding, for boiler repairs and for general shop work requiring a strong,rugged torch. Weight, 2 lbs. Length, over-all, 20 inches. Fitted with five tips, Nos. b,7, 8, 9, 10, using oxygen pressures…
Electrical engineering
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