Electric heating – Metal heating – By arc
Patent
1977-01-31
1978-12-26
Truhe, J. V.
Electric heating
Metal heating
By arc
21912512, 219126, 228 27, 228 45, B23K 912
Patent
active
041317831
ABSTRACT:
Welding apparatus in which a self-propelled wheeled carriage releasably supports a welding gun or torch of the hand-held type having a welding tip and control for controlling feed of a welding wire to the welding tip, wherein the carriage is guided along a joint to be welded at a predetermined proper welding speed, the welding gun being adjustably supported on a pivotally mounted cradle which is power-actuated to provide controlled oscillations of the welding gun and associated tip transversely of the joint at a rate of speed proportional to the propelled speed of the carriage, the amplitude of the oscillations being selectively adjustable between zero and a predetermined maximum. Interchangeable driving wheel units provide for use in the welding of planar disposed surfaces and angularly disposed surfaces. In one form of the invention, provision is made for applying a force against the carriage in a direction perpendicular to the joint axis, and also in the case of vertical weld joints for applying a weight counterbalancing force to the carriage.
REFERENCES:
patent: 3671712 (1972-06-01), Fisher
patent: 3681564 (1972-08-01), Hiyama et al.
patent: 3742184 (1973-06-01), Arikawa et al.
patent: 3764777 (1973-10-01), Sakabe et al.
patent: 3779444 (1973-12-01), Kensrue
patent: 3843866 (1974-10-01), Kensrue
patent: 3924094 (1975-12-01), Hansen et al.
Kensrue Milo M.
Martin Donald L.
Shaw Clifford C.
Truhe J. V.
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