Ladder safety attachment

Details Ladder safety attachment Ladder safety attachment

1983-04-29

1984-09-04

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

With hook or grab

182107, 182214, E06C 748

Patent

active

044691955

ABSTRACT:
The safety attachment includes a flat strap base member and a clamp thereon to detachably mount it on the top rung of a ladder. A pair of curved horns are pivoted on the ends of the base member, the horns being curved to fit around the tree against which the ladder is put, and with teeth on their concave sides to bite into the tree. The horns have diverging extensions at their outer or swinging ends which act as camming elements in applying the attachment to the tree. A chain interconnects the horns, which rests against the tree, and a tension spring also interconnects the horns. The horns have inner extensions extending oppositely beyond the pivot axes, and a pull rope interconnects these extensions and reaches the ground, which the user can pull for swinging the horns away from each other and releasing them from the tree.

REFERENCES:
patent: 1658191 (1928-02-01), Gravning
patent: 1961289 (1934-06-01), Gardner
patent: 2232414 (1941-02-01), Swann
patent: 3028929 (1962-04-01), Chubbs
patent: 3037579 (1962-06-01), Barrow
patent: 3336999 (1967-08-01), McSwain

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