Chain – staple – and horseshoe making – Chain making – Welding
Patent
1974-09-20
1976-01-27
Lanham, C. W.
Chain, staple, and horseshoe making
Chain making
Welding
59 18, 59 22, 59 25, 59 35, B21L 302
Patent
active
039344070
ABSTRACT:
Method of and apparatus for electrically butt-welding high-strength chains. Previously bent and interengaged chain links are passed through a chain welding machine, each chain link in succession being alternately rotated about its axis and erected to a vertical position for engagement by upsetting members and welding electrodes.
REFERENCES:
patent: 798692 (1905-09-01), Muller
patent: 2684422 (1954-07-01), Esser et al
patent: 2688838 (1954-09-01), Wattler
patent: 3389552 (1968-06-01), Weischede
patent: 3552118 (1971-01-01), Reiter et al
patent: 3701253 (1972-10-01), Wust
Duzan James R.
Lanham C. W.
Wafios, Maschinenfabrik, Wagner, Ficker & Schmid
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