Internal welding head assembly

Details Internal welding head assembly Internal welding head assembly

1984-05-14

1989-08-15

Albritton, Clarence L.

Electric heating

Metal heating

By arc

219 60A, B23K 900, B23K 912

Patent

active

048577014

ABSTRACT:
Internal welding head apparatus, wherein a welding torch is mounted on a pivotal support for movement of the torch toward and away from the weld site, and wherein the torch is carried on a rotative shaft to be oscillated transversely by oscillation of the rotative shaft, oscillation of the rotative shaft being accomplished by rotation of an eccentric in a yoke fixed to the rotative shaft, and wherein the oscillations are dampened by spring means disposed at opposite sides of the rotative shaft. The apparatus is compact, and is adapted to be mounted on a carrier to be rotated about the interior of a pipe or tank, or the like.

REFERENCES:
patent: 3632959 (1972-06-01), Nelson et al.
patent: 3903391 (1975-09-01), Nelson et al.
patent: 4306134 (1981-12-01), Slavens et al.

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