Sprocket chain master link

Details Sprocket chain master link Sprocket chain master link

1996-07-09

1997-05-13

Jones, David

Chain, staple, and horseshoe making

Chains

Links

59 93, F16G 1504

Patent

active

056281781

ABSTRACT:
A sprocket chain link designed to connect opposing link ends of a handwheel sprocket chain having a detachable grasping end and a detachable bit end. The sprocket chain master link is used to facilitate replacement or length alterations an existing handwheel sprocket chain used to turn a sprocket handwheel for opening and shutting piping valves. The detachable grasping end of the sprocket chain master link is used to hold a link end portion of a standard handwheel sprocket chain link while the detachable bit end of the sprocket chain master link holds the loop end of a standard handwheel sprocket chain link. While attached to a handwheel sprocket chain, the sprocket chain master link rotates around a handwheel sprocket performing the same function as the attached standard handwheel sprocket chain links.

REFERENCES:
patent: 340838 (1886-04-01), Walters et al.
patent: 1380903 (1921-06-01), Haughtwout
patent: 1392138 (1921-09-01), Freeman
patent: 3817028 (1974-06-01), Blackwood
patent: 3962811 (1976-06-01), Buschini et al.
patent: 4095416 (1978-06-01), Issard

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