Railway hopper car sliding gate lock

Details Railway hopper car sliding gate lock Railway hopper car sliding gate lock

1979-10-04

1981-03-17

Beltran, Howard

Railway rolling stock

Special car bodies

Dumping

105308C, B61D 720, B61D 722, B61D 726

Patent

active

042560420

ABSTRACT:
A plate welded to what is the leading edge of the slide gate door, as the slide gate door would move in the opening direction, engages a portion of the peripheral face of a cam. The plate is above the supports on which the gate rides. In the event that a force is applied to the door urging the door in the opening direction, that portion of the cam cams the distal side of the plate toward those supports, whereby the plate acts as a spring resisting that force and in preventing the door significantly moving in the opening direction. The cam can be rotated to another position at which the plate and door are free to move below it to the opened position.

REFERENCES:
patent: 2142236 (1939-01-01), Campbell
patent: 2749851 (1956-06-01), Dorey
patent: 3035530 (1962-05-01), Meyers et al.
patent: 3683820 (1972-08-01), Floehr
patent: 3707126 (1972-12-01), Nester

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