Railway hopper car door locking mechanism

Details Railway hopper car door locking mechanism Railway hopper car door locking mechanism

1977-04-11

1979-01-30

Paperner, L. J.

Railway rolling stock

Special car bodies

Dumping

105308P, B61D 702, B61D 718, B61D 726, B61D 4900

Patent

active

041366212

ABSTRACT:
A locking arrangement for a hopper door includes a rotatable latch which is pivotally connected to rotate between open and closed positions. The latch is actuated by a link and bell crank lever arrangement which also locks the latch closed in an over-center position. The bell crank lever is rotated by a linkage arrangement and biasing means on the bell crank lever holds the same in an over-center position.

REFERENCES:
patent: 699820 (1902-05-01), Sage
patent: 1267834 (1918-05-01), Yost
patent: 1584417 (1926-05-01), Wine
patent: 1658600 (1928-02-01), Kadel
patent: 2893327 (1957-07-01), Lunde
patent: 3240165 (1966-03-01), Floehr
patent: 3682105 (1972-08-01), Marulic

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