Railway hatch cover and strap safety tab latching assembly

Details Railway hatch cover and strap safety tab latching assembly Railway hatch cover and strap safety tab latching assembly

1981-07-23

1984-04-10

Reeves, Robert B.

Railway rolling stock

Special car bodies

Freight

105308E, 114203, 220314, B61D 1712, B61D 3900, B65D 4508

Patent

active

044414315

ABSTRACT:
A pivoting hatch cover and strap assembly has an overcenter latch assembly which is pivotably mounted upon the car roof at a location opposite the common hatch cover and strap pivot axis. This latch assembly includes a bifurcated overcenter locking handle which has a pair of cam surfaces which in closed position engage spaced wear plate surfaces located on the strap. A tab is located on the wear plate adjacent to but outboard of the cam surface on the operating handle. The tab makes a sufficient angle with the horizontal and extends upwardly and outwardly from the cam surface a distance sufficient to prevent the cam portion of the operating handle from moving longitudinally, and disengaging from the strap until pressure within the car is dissipated and thus prevents the strap and cover flying open.

REFERENCES:
patent: 1158946 (1915-11-01), McGray
patent: 4248160 (1981-02-01), Carney, Jr. et al.

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