Closure actuating device for railway hopper car doors

Details Closure actuating device for railway hopper car doors Closure actuating device for railway hopper car doors

1975-03-12

1977-03-01

Spar, Robert J.

Railway rolling stock

Special car bodies

Dumping

105252, 105283, 105308R, 222536, B61D 706, B61D 718, B61D 726, B61D 4900

Patent

active

040096645

ABSTRACT:
A closure actuating device is disclosed for freeing rotation of discharge control doors for railway hopper cars of the type where the door assembly is supported for rotation about a pivotal axis parallel to and beneath the discharge opening in the railway car. To alleviate sticking of the doors due to compaction of fines on the upper surface of the control doors which cover the discharge openings, the device lowers the control doors to increase the clearance between the terminating edges of the discharge openings and the upper surface of the discharge door.

REFERENCES:
patent: 287663 (1883-10-01), Godwin
patent: 1800832 (1931-04-01), Hindahl
patent: 2042528 (1936-06-01), Hosceit
patent: 3654872 (1972-04-01), Fearon
patent: 3822650 (1974-07-01), Fearon

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