Mechanism to restrain slamming of shovel dipper doors

Details Mechanism to restrain slamming of shovel dipper doors Mechanism to restrain slamming of shovel dipper doors

1977-01-28

1977-12-20

Eickholt, E. H.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

214145R, 214146R, 214146E, 292 80, E02F 346

Patent

active

040633730

ABSTRACT:
A mechanism to restrain slamming of shovel dipper doors including a pair of arms connected respectively to the back and door of a shovel dipper and pivotally interconnected together with a Belleville spring loading.

REFERENCES:
patent: 1511115 (1924-10-01), Downie
patent: 1822338 (1931-09-01), Clemens
patent: 2561518 (1951-07-01), Larsen
patent: 2588657 (1952-03-01), Pitts
patent: 2722325 (1955-11-01), Dempster
patent: 2735559 (1956-02-01), Burdick et al.
patent: 2788907 (1957-04-01), Larsen
patent: 2926800 (1960-03-01), Larsen et al.
patent: 3210870 (1965-10-01), Watt
patent: 3219213 (1965-11-01), Learmont

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