B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/86
B23K 11/00 (2006.01) B21F 27/10 (2006.01)
Patent
CA 1153429
MACHINE FOR RESISTANCE WELDING OF SCREENS AND LIKE STRUCTURES Abstract of the Disclosure A machine for resistance welding a structure such as a screen formed of longitudinal and transverse sets of laterally spaced wires or rods by welding wires of the transverse set in succession and spaced relation to wires of the longitudinal set at a welding station extending transversely of the longitudinal set, the machine having as a welding unit a carriage intermit- tantly and incrementally drivable above and along the welding station, a transformer mounted for relative reciprocal vertical movement in the carriage, a ram suspended from the transformer for movement in unison therewith, a welding electrode depending from the ram and normally spaced above a wire of the transverse set in the welding station and engageable therewith in an ad- vance stroke of the ram for applying welding pressure during welding of that transverse wire, and a power unit mounted on the carriage and acting through the transformer for powering advance and retract strokes of the ram. The present machine is pri- marily distinguishable from prior machines for resistance weld- ing screens and like structures in mounting the transformer in the carriage and the powering of the advance and retract strokes of the ram and therethrough the welding electrode by a power unit mounted on the carriage and acting through the transformer.
379850
Connolly James D.
Riches Mckenzie & Herbert Llp
LandOfFree
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