Clamp type ladder wall engaging bracket

Details Clamp type ladder wall engaging bracket Clamp type ladder wall engaging bracket

1976-07-27

1977-04-19

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

With hook or grab

182 93, E06C 136, E06C 748

Patent

active

040183017

ABSTRACT:
A support arm structure for the upper end of a ladder is provided and includes mounting structure for mounting one end of the support arm structure on the upper end of the ladder for swinging of the support arm structure about a transverse axis extending transversely of the associated ladder, the support arm structure being swingable in a plane in which the ladder is disposed. The outer end portion of the support arm structure includes relatively pivotable opposing jaw structures and a connecting link is connected between the jaw structures and a portion of the mounting structure stationary with the ladder whereby the connecting link may effect relative oscillation of the jaws toward and away from each other in response to swinging movement of the support arm structure relative to the ladder. In addition, the connecting link and its connection with the ladder includes structure whereby the effective length of the connecting link may be varied to thereby adapt the opposing jaws to clampingly engage objects of different size therebetween.

REFERENCES:
patent: 3028929 (1962-04-01), Chubbs
patent: 3603431 (1971-09-01), Nameche
patent: 3910380 (1975-10-01), Nameche

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