Continuous welder

Details Continuous welder Continuous welder

1976-02-09

1977-09-27

Truhe, J. V.

Electric heating

Metal heating

Of cylinders

219124, 219125R, 219137R, 266 56, B23K 902, B23K 912

Patent

active

040513424

ABSTRACT:
A continuous welder automatically moves from one joint to the next along a pipeline of pipes to be welded together, and automatically adapts to pipes of different diameter. At each joint, a wire-fed welding nozzle revolves around the pipes to weld the pipes together, the welding nozzle making a root pass, an overlap pass, and a wash pass, to complete a permanent weld at the joint. During each pass the welding nozzle is oscillated in a different path by selectable oscillating apparatus therefor, the particular oscillating apparatus utilized being automatically changed on each pass. The welding nozzle revolves around the pipes under the power of rotating planetary gear sets which are engaged with mounting rings for the gear sets.

REFERENCES:
patent: 3084244 (1963-04-01), Rieppel et al.
patent: 3207881 (1965-09-01), Pagan
patent: 3266700 (1966-08-01), Bauer et al.
patent: 3306116 (1967-02-01), Ross et al.
patent: 3361319 (1968-01-01), Sato et al.
patent: 3427428 (1969-02-01), Nelson et al.
patent: 3633813 (1972-12-01), Looney et al.

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