A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 564
process of welding is substantially as fol- Wei.] 554 [Win. lows, viz.: the welding junctions are made slightly-convex, so as to touch in but one part of theiropposing faces. They are made to touch neartheir centres and the welding heat is first reachednear their points of junction. Pressure is… … Fig. 567. The Thomson Indirect Weluer. few minutes for larger work. The heating ispractically local, extending in most cases a dis-tance equal to about the diameter of the weld. For the purpose of controlling the electro-motive force, and thus adapting the same welder todifferent classes of work,…
Electricity · Electrical engineering
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