B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/46
B23K 9/28 (2006.01) B23K 9/29 (2006.01)
Patent
CA 1091772
CURVED NOZZLE WELDING GUN Abstract of the Disclosure: A welding gun has a separable nozzle embodying longitudinally curve inner and outer concentric sleeves, and fore and aft-mounted bodies to which the opposed ends of the concentric sleeves are brazed to define an annular gas manifold between the sleeves into which gas feeds through the aft-mounted body. The aft-mounted body detachably seats within a tubular handle and it contains a bore through which the consumable wire electrode feeds to the central bore of the inner sleeve. The fore-mounted body provides for connection of an adapter by which a current pickup tube is fixed to the curved nozzle in line with its inner sleeve to receive the wire electrode. Said fore-mounted boyd is ported at spaced intervals for discharge of gas from the manifold through the adapter and about the current pickup tube when assembled thereto. In an alternate structure, inlet and outlet tubes ported through the aft-mounted body follow closely along the outer sleeve to provide passage for cooling fluid to and from an annular chilling chamber fixed about the forward end of the nozzle. The outer sleeve, and in the alternate structure also the cooling chamber and its inlet and outlet tube, are enclosed along the length of the nozzle by a snugly fitting insulative sheath.
305626
Moerke Delford A.
Osler Hoskin & Harcourt Llp
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