Device for automatically locking a hatchway panel in the open or

Details Device for automatically locking a hatchway panel in the open or Device for automatically locking a hatchway panel in the open or

1985-08-27

1987-04-07

Downey, Kenneth

Movable or removable closures

Operator interrelated with closure latch release

Motor driven

160188, E05F 1500

Patent

active

046550046

ABSTRACT:
One element of the hatchway panel is hinged to the hatch coaming through a link and is connected to the piston rod of a hydraulic actuator of which the cylinder foot portion comprises a transverse pin adapted to slide within an elongate hole provided in a fixed support. On this fixed support is pivoted a locking hook adapted to co-act with a lateral stop of the panel for locking the panel in its closed position. When the hydraulic actuator is actuated for opening the panel, the foot portion of the actuator cylinder first engages a heel portion of the locking hook and causes this hook to pivot for automatically unlocking the panel.

REFERENCES:
patent: 2538980 (1951-01-01), Payne, Jr.
patent: 3272552 (1966-09-01), Park
patent: 3860288 (1975-01-01), Martin et al.

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