Railway rolling stock – Special car bodies – Dumping
Patent
1976-12-27
1978-06-13
Hoffman, Drayton E.
Railway rolling stock
Special car bodies
Dumping
105308C, 105308P, B61D 720, B61D 726, B61D 4900, F05B 6518
Patent
active
040942546
ABSTRACT:
A lock for a railway hopper car gate in which a hopper outlet chute defines a discharge opening with a siding platelike gate operating in the opening. An undercarriage structure having a pair of spaced side frames supports the gate for sliding movement relative the opening. An elongated lock shaft extends between and projects through guide slots formed in both side frames with one of the side frames also being formed with a lock hole. A U-shaped handle is fixed to each end of the lock shaft with each handle having a return leg supported for transverse and pivoting movement relative the side frames. A latching shoulder is fixed to the elongated lock shaft and one of the guide slots is formed with a latching notch. Transverse movement of the lock shaft by operation of either handle effects an engagement of one of the handle return legs into the frame hole to thereby lock the gate. In the lock opening operation, a pivoting movement of the lock shaft within both guide slots followed by a subsequent transverse movement effects the engagement of the shoulder within the locking latch, thereby latching the lock in the unlocked position. A projecting apertured lock flange is integrally formed on each end of the lock shaft, and the adjacent side frame is also formed with a hole, whereby a railway car seal may be passed through an apertured lock flange and the adjacent frame hole, whereby pivoting of the shaft to open the lock automatically breaks the car seal.
REFERENCES:
patent: 1972042 (1934-08-01), Flowers
patent: 2386702 (1945-10-01), McBride
patent: 3035530 (1962-05-01), Meyers et al.
patent: 3138117 (1964-06-01), Dorey
patent: 3204166 (1965-08-01), Polcyn, Jr. et al.
patent: 3956996 (1976-05-01), Fischer
Beltran Howard
Hoffman Drayton E.
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