Ladder lock

Details Ladder lock Ladder lock

1978-02-13

1980-01-01

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Miscellaneous

182129, 182106, E06C 532, E06C 700

Patent

active

041811950

ABSTRACT:
A ladder locking device designed for attachment to a frame-mounted ladder. The ladder lock includes a panel dimensioned to cover the front side of the ladder over an area including a plurality of ladder rungs. The upper edge of the panel is bent to form a lip engageable with an upper ladder rung. Attached to a lower portion of the panel is a lock operable to position a locking member into engagement or disengagement with a lower ladder rung, whereby the device is locked to or released from the ladder.

REFERENCES:
patent: 2876047 (1959-03-01), LaPlante
patent: 2880829 (1959-04-01), Watkins
patent: 3418833 (1968-12-01), Kerr

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