Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 437
one hundred to five hundredtimes that required to make a weld. The copper secondary circuitof the transformer is generally only a single turn of verj largesection, so that it may develop an extremely heavy current at fromtwo to four volts,—an electric pressure so low that it cannot givethe least… … ET^ECTRIC TIRE WF.LDI-VO MAPHTNE. single-turn secondary circuit. The control of the clamping devicesand the current switch is either manual, or, in some cases, entirelyautomatic. Without attempting to enumerate the many applica-tions of electric welding in the arts, we may refer to a fewexamples.…
Electrical engineering
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