Hatch cover lock and hinge

Closure fasteners – Clamps – Hatch fastener

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Details

292259R, 292 11, E05C 330, B63B 1914

Patent

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053142187

ABSTRACT:
A hatch cover lock with an automatic first locking mechanism for securing a removable hatch cover of a railway hopper car to the railway hopper car and secondary manually operated locking mechanism to secure the hatch cover to the hopper car in addition to the automatic first locking mechanism which allows the hatch cover to be opened from either side of the hopper car, and which cooperates to prevent accidental removal of the hatch cover and/or batten bar from the hopper car.

REFERENCES:
patent: 691752 (1902-01-01), Dawley
patent: 768530 (1904-08-01), King
patent: 3848912 (1974-11-01), Jensen et al.
patent: 3884514 (1975-05-01), Praska
patent: 4094542 (1978-06-01), Siblik
patent: 4307670 (1981-12-01), Nadherny

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