Device for preventing unauthorized access to permanent ladders

Details Device for preventing unauthorized access to permanent ladders Device for preventing unauthorized access to permanent ladders

1975-02-20

1976-07-13

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

With handrail or guard for ladder

182 47, 182 77, 182230, E06C 532

Patent

active

039688577

ABSTRACT:
A shield having a front plate and a pair of side flanges extending rearwardly and outwardly therefrom to a point substantially adjacent a supporting wall or beam substantially encases the ladder and prevents unauthorized use of the ladder. The length of the shield may be considerably reduced by attaching the shield to the ladder at a point above the ground. The front plate is hingedly attached to one of the side flanges and a locking device adjustably mounted on the rungs of the ladder secures the front plate in closed relationship to the face thereof.

REFERENCES:
patent: 2880829 (1959-04-01), Watkins
patent: 3106986 (1963-10-01), Ray
patent: 3225863 (1965-12-01), Ludlow

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