Method and apparatus for welding a link chain

Details Method and apparatus for welding a link chain Method and apparatus for welding a link chain

1975-02-20

1976-06-01

Lanham, C. W.

Chain, staple, and horseshoe making

Chain making

Welding

B21L 300

Patent

active

039599655

ABSTRACT:
For welding, in the course of a single pass, a link chain of indeterminate length formed of C-shaped, serially interconnected, alternating first and second links, the chain is guided, in a welding machine, through a first welding position, in the zone of which the first links have an edgewise upright orientation and the second links have a flat-lying orientation. In the first welding position the first links are welded. Then the partially welded chain is guided to and through a second welding position in such a manner that in the zone of the second welding position, the second links have an edgewise upright orientation and the first links have a flat-lying orientation. In the second welding position the welding of the chain is completed by welding the second links. Subsequent to the welding of each first or second link, the just-welded link is advanced for bringing the successive first or second link into the first or second welding position, respectively.

REFERENCES:
patent: 1023127 (1912-04-01), Ryan
patent: 2684422 (1954-07-01), Esser
patent: 3701253 (1972-10-01), Wust

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