Apparatus for Automatic Arc Spot Welding
1,196,725. Arc welding systems. ESAB Ltd. 31 Jan., 1969 [8 Feb., 1968], No. 5399/69. Heading H2H. Apparatus for arc spot welding comprises a device for feeding a consumable electrode to the work and a timing circuit which is controlled by a fast acting switch so that time lost during interruptions o...
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