Ladders

Details Ladders Ladders

1982-07-01

1984-08-28

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

With hook or grab

182100, 182189, E06C 136

Patent

active

044678908

ABSTRACT:
A ladder is provided with an attaching device at its top end whereby it can be quickly and securely attached to a vertical pole, tree-trunk or the like. The attaching device comprises a pair of jaws to pass one on each side of the vertical pole, and it can pivot until the jaws engage the pole. The ladder is suspended from the pivot of the attaching device, and may then be secured at its bottom end to prevent it from swinging.

REFERENCES:
patent: 631302 (1899-08-01), Harper
patent: 1091277 (1914-03-01), Bloom
patent: 1142072 (1915-06-01), Wingerd
patent: 3896900 (1975-07-01), Hunter
patent: 3995714 (1976-12-01), Brookes
patent: 4225013 (1980-09-01), Sample
patent: 4368801 (1983-01-01), Lewis

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