Self-running one-side welding facilities

Details Self-running one-side welding facilities Self-running one-side welding facilities

B - Operations, Transporting

23

K

327/42, 78/53

B23K 9/02 (2006.01) B23K 9/035 (2006.01)

Patent

CA 1056020

F ABSTRACT OF THE DISCLOSURE An improved apparatus and method of one-side welding of weldable materials, Known similar methods have been in- efficient insofar as the method of utilizing a backing bar during the welding process, as well as the equipment utilized. In particular, known arrangements have utilized magnets or tape to secure a backing bar in position adjacent a lower surface of a butt joint being welded. As the metal heats, the tape and magnets lose their effectiveness, resulting in the backing bar becoming loose and moving away from a lower surface of the butt joint. The present invention provides an apparatus and method which overcomes the above drawbacks by providing a backing bar housing mounted by means of wheels on guide rail means situated beneath the material being welded. The backing bar housing includes power means mounted thereon, the power means adapted to drive at least one of the wheels, whereby the apparatus is advanced the guide rail means. A backing bar is moveably mounted on the housing, the backing bar adapted to be advanced toward and away from the butt joint being welding, the backing bar adapted to be situated adjacent the butt joint as the apparatus is advanced along the guide rail means.

251894

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