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 374
em under patents owned by them and several otherconcerns have announced their intention of bringing out arc-weldingequipments witliin short periods. Each of these companies offersits apparatus on the strength of some peculiarity of the controlling 334 WELDING 41 devices for the welding circuits or… … Fig. 60. Portable Electric Welder in ActionCourtesy of Indianapolis Switch and Frog Company Fig. 60, consists of a group of iron resistance grids mounted in aframework on a four-wheeled truck, with means for attaching to atrolley wire and the track; it is used mostly for repairs on streetrailway…
Electrical engineering
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