Adjustable welding torch mounting
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United States of America Patent
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-
Jul 13, 1993
Grant Date -
N/A
app pub date -
Oct 11, 1991
filing date -
Oct 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Automatic welding apparatus of the type comprising a carriage self-propelled along a guide track encircling end-to-end adjoining metal tube sections through a welding pass therearound for forming a weld bead joint therebetween is provided with a welding head pivotally mounted on the carriage for pivotal movement thereon in the plane of the weld joint, about a pivot point located approximately at the tip end of the wire electrode projecting from the nozzle end of the welding head, between an initial forwardly inclined drag angle welding position at the top of the adjoining horizontally disposed tube sections to a rearwardly inclined push angle welding position when the welding head reaches around 120.degree. to 135.degree. of its welding pass around the weld joint.
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