Ladder stabilizer

Details Ladder stabilizer Ladder stabilizer

1975-05-27

1977-02-15

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

Terminal foot or shoe

E06C 742, E06C 536

Patent

active

040078078

ABSTRACT:
A chain-and-anchor system stabilizes a standard ladder being used on penetrable or impenetrable surfaces. A chain, secured at either end to one of the ladder rails is held taut by an anchor; at the same time, anti-slip devices prevent ladder from shifting. For use on penetrable surfaces, the anchor and anti-slip devices are penetrating spikes, while for impenetrable surfaces, a weight box is used as an anchor, while anti-skid material fastened to the ladder rail ends serves as anti-slip devices.

REFERENCES:
patent: 530374 (1894-12-01), Wilkins
patent: 776446 (1904-11-01), Williamson
patent: 846228 (1907-03-01), Miller
patent: 1479262 (1924-01-01), Stegeman
patent: 1973226 (1934-09-01), Rose
patent: 1982572 (1934-11-01), Colglazier
patent: 2523535 (1950-09-01), Little
patent: 3432003 (1969-03-01), La Pierre

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