A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 565
g formedof a U-shaped bar of copper. No commutationis used, the alternating currents being welladapted for heating purposes. The terminals ofthe dynamo are, therefore directly connected tothe clamps that hold the bar to the welder. Fig- 567, shows the apparatus for the ThomsonIndirect System of… … J 6 6. The Tho))ison Direct J Jeider. into the large welding current employed, by meansof a suitably proportioned transformer. The welding process is the same in either sys-tem, and consists essentially in leading the weld-ing current into the pieces to be united throughtheir points of junction…
Electricity · Electrical engineering
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