Safety device for securing a ladder to an aerial cable

Details Safety device for securing a ladder to an aerial cable Safety device for securing a ladder to an aerial cable

1990-07-13

1991-10-08

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

With hook or grab

248210, E06C 748

Patent

active

050545817

ABSTRACT:
There is provided a clamp for securing a ladder to an aerial cable such as telephone cable. The clamp includes first and second slots for attaching the clamp to adjacent rungs on the ladder. The clamp includes a locking mechanism, having a swivelable portion so that when the aerial cable contacts the swivelable portion the cable becomes fixed securely to the clamp thus safely supporting the ladder against the aerial cable.

REFERENCES:
patent: 1018877 (1912-02-01), Chickering
patent: 1961289 (1934-06-01), Gardner
patent: 1994369 (1935-03-01), Risser
patent: 2963104 (1960-12-01), Roth
patent: 3001603 (1961-09-01), Kraus
patent: 3067836 (1962-12-01), Carnicelli
patent: 3780829 (1973-12-01), Wallingford

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