Chain

Details Chain Chain

1999-02-16

1999-10-19

Jones, David

Chain, staple, and horseshoe making

Chains

Conduit

59 84, 474206, 474227, 198851, B21L 904

Patent

active

059669233

ABSTRACT:
A conventional chain capable of reserving lubricating oil is complex in shape and expensive since each chain plate is formed with countersunk recesses and through-openings. Since the recesses are formed in an overlap region, the chain tends to rattle, producing noise. In the present invention according to which lubricating oil is fed toward a connecting pin, the lubricating oil is transferred to the connecting pin to effect intended lubrication. Part of the lubricating oil thus fed adheres to the recessed surfaces of the recesses and is prevented from immediately flowing down by viscous friction resistance and surface tension in the recessed surfaces. Thus, the oil is held in its adhering state. The lubricating oil gradually flows down to be used for lubrication as the chain moves. Thereby, after the chain has passed by an oil feeder, the connecting pin of the chain stays in such a state that oil is fed continuously for a long time.

REFERENCES:
patent: 1793065 (1931-02-01), Da Costa
patent: 2298604 (1942-10-01), Webb
patent: 2487500 (1949-11-01), Webb
patent: 2860529 (1958-11-01), Sull
patent: 3742863 (1973-07-01), Rosenberger, Jr.
patent: 4020629 (1977-05-01), Wilmot et al.
patent: 4143512 (1979-03-01), Templin
patent: 4263779 (1981-04-01), Petershack

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