Holddown bar for a hatch cover of a railroad car

Details Holddown bar for a hatch cover of a railroad car Holddown bar for a hatch cover of a railroad car

1983-01-31

1986-06-17

Reeves, Robert B.

Railway rolling stock

Special car bodies

Freight

293120, B61D 3900

Patent

active

045949492

ABSTRACT:
A holddown bar for a hatch cover of a railroad car, the holddown bar having opposed ends one of which is adapted to be pivotally mounted to the car and the other of which is adapted to be releasably latched to the car while a medial portion thereof intermediate the opposed ends is adapted to extend across the hatch cover and carries a sealing gasket in a channel thereof that is adapted to engage against the hatch cover. The medial portion of the holddown bar has a surface adapted to engage a certain structure of the car outboard of the hatch thereof when the holddown bar is pivoted to a hatch opening position thereof. The surface of the medial portion of the holddown bar comprises a resilient bumper carrier by the holddown bar for engaging the structure of the car when the holddown bar is pivoted thereagainst whereby the bumper tends to prevent damage to that structure of the car when the holddown bar is pivoted to the open position thereof.

REFERENCES:
patent: 1422139 (1922-07-01), Sandman
patent: 2118746 (1938-05-01), Tinnerman
patent: 2125783 (1938-08-01), Heeman
patent: 3082022 (1963-03-01), Moore
patent: 3606433 (1971-09-01), Kunevicius
patent: 3645573 (1972-02-01), Strang
patent: 3664270 (1972-05-01), Stark et al.
patent: 4043579 (1977-08-01), Meyer
patent: 4126094 (1978-11-01), Zimmerle et al.
patent: 4239008 (1980-12-01), Conlon
patent: 4378742 (1983-04-01), Saylor et al.
Admitted prior art to applicant of copending patent application, Ser. No. 412,416, filed Aug. 27, 1982--Clark et al.

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