Lock for a hopper car outlet gate

Details Lock for a hopper car outlet gate Lock for a hopper car outlet gate

1976-07-15

1978-07-11

Hoffman, Drayton E.

Railway rolling stock

Special car bodies

Dumping

49362, 292DIG22, 292238, 298 38, B61D 702

Patent

active

040994686

ABSTRACT:
In a railway hopper car a sliding gate is provided at the discharge opening of the hopper for discharging materials therefrom. The gate comprises a frame supporting a sliding gate member movable from a closed position to an open position by means of a rack and pinion arrangement. The arrangement is actuated by an operating shaft which projects out from opposite ends of the gate and includes operating heads which are adapted to be engaged by a tool for rotating the shaft. A lock arrangement is provided for maintaining the sliding gate in a closed position and includes blocking elements which in the locked position of the gate are disposed over the operating heads to prevent the insertion of a tool unitl the locking mechanism is placed in an unlocked position.

REFERENCES:
patent: 1602511 (1926-10-01), Tatum
patent: 2145173 (1939-01-01), Hankins
patent: 2479292 (1949-08-01), Batho
patent: 2898871 (1959-08-01), Dath
patent: 3035530 (1962-05-01), Meyers et al.
patent: 3683820 (1972-08-01), Floehr
patent: 3958514 (1976-05-01), Akester et al.

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