Self closing gate

Details Self closing gate Self closing gate

1977-05-12

1980-01-29

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

182113, 182116, E06C 716, E04G 126, B66B 1300

Patent

active

041857160

ABSTRACT:
An improved ladder supported rescue platform for use as an evacuation tool is disclosed. The platform includes a peripheral rail system wherein a gate can be raised vertically by a worker to enter the platform from the ladder or to enter the ladder from the platform. The geometry of the gate construction is designed to assure automatic closure without any action on the part of the user. The gate is designed of parallelogram configuration and may include a snaplock to secure the gate in its closed position.

REFERENCES:
patent: 373752 (1887-11-01), Perry
patent: 696559 (1902-04-01), Graham
patent: 850969 (1907-04-01), Rohrer
patent: 1165782 (1915-12-01), Jones
patent: 2442937 (1948-06-01), Roman
patent: 3727722 (1973-04-01), Hedges

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