Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 410
Fig. 93. Samples of Butt WeldingCourtesy of Toledo Electric Welder Company hydraulic cylinder to bring the pieces together and to apply therequired pressure when properly heated. The current is carriedinto the pieces through the jaws and is usually turned on auto- 366 WELDING 7? … ■ji i^^
Electrical engineering
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