Opening and closing means for hinged trough covers on hopper car

Details Opening and closing means for hinged trough covers on hopper car Opening and closing means for hinged trough covers on hopper car

1976-07-19

1978-03-07

Hoffman, Drayton E.

Railway rolling stock

Special car bodies

Freight

105250, 105290, 105293, B61D 724, B61D 3900

Patent

active

040773299

ABSTRACT:
An elongated hatch opening in the roof of a hopper car includes a pair of hatch covers hinged on opposite sides of the hatch. A motor and operating mechanism supported at the end of the hatch reciprocates a pair of push-pull bars positioned within the hatch opening which in turn are connected to elevating rods connected to the underneath sides of the covers, the elevating rods extending inwardly and upwardly in the closed position and have a universal joint connection with the covers. Upon movement of the push-pull bars the elevating rods move the hatch covers to an upright open position. The elevating rods and the push-pull bars may be located internally or externally of the hatch covers, i.e., inwardly or outwardly of the hopper car body.

REFERENCES:
patent: 775402 (1904-11-01), Hitchcock
patent: 1269431 (1918-06-01), Guthrie
patent: 1284111 (1918-11-01), Kestler
patent: 3176630 (1965-04-01), Schmeider
patent: 3256836 (1966-06-01), Floehr
patent: 3581672 (1971-06-01), Aquino
patent: 3626865 (1971-12-01), Aquino
patent: 3675590 (1969-12-01), Schuller

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