Special purpose ladder

Details Special purpose ladder Special purpose ladder

1986-11-17

1988-02-02

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Ladder

182201, 182116, 182187, 182206, E06C 536, E06C 748

Patent

active

047224207

ABSTRACT:
This ladder is designed to clamp to sign posts for workman safety. Primarily, it consists of a pair of stepped legs with a hinged shelf at the top having a clamp that clamps to a sign post. A second clamp is also provided below and is secured to arms attached to the legs, and a pair of extension rods are provided on the legs for stabilily of the legs on sloping ground surfaces.

REFERENCES:
patent: 347608 (1886-08-01), Jackson
patent: 1138583 (1915-05-01), Tasker
patent: 1142072 (1915-06-01), Wingerd
patent: 3268196 (1966-08-01), Anton

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