Method of making a bushing link chain

Details Method of making a bushing link chain Method of making a bushing link chain

1974-12-20

1976-01-13

Lanham, C. W.

Chain, staple, and horseshoe making

Chain making

Roller chain

59 8, 59 15, 74250R, B21L 904

Patent

active

039317064

ABSTRACT:
A blank, having a pair of parallel bushing forming strips that are intermediately connected by a web, is formed from stock. The blank is bent and curled in a progressive die to form a bushing link that includes a pair of cylindrical bushings integral with the web. Rollers can be slipped longitudinally over the bushing ends opposite from the web and an inside plate is welded to the bushing ends to form a roller link. Such roller links are alternately arranged with pin-links to form a roller chain. A bushing chain can be formed in essentially the same manner as the roller chain by omitting the rollers from the bushing links.

REFERENCES:
patent: 2384827 (1945-09-01), Fuchs
patent: 2793536 (1957-05-01), Onulak
patent: 3119276 (1964-01-01), Pearson
patent: 3192785 (1965-07-01), Pearson

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