Ladder levelling system

Details Ladder levelling system Ladder levelling system

1980-07-21

1981-12-08

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

182200, 2481882, E06C 744

Patent

active

043043186

ABSTRACT:
A ladder levelling device used in combination with a ladder on inclined ground surfaces, which levelling device is placed under one leg of the ladder while the other leg rests on the ground surface or some other support, comprises a triangular, inclined platform including an open cavity area defined in its bottom side. The levelling device provides a stable, as well as a level ladder.

REFERENCES:
patent: 330911 (1885-11-01), Livingston
patent: 3021638 (1962-02-01), Kristek
patent: 3993275 (1976-11-01), Lucas
patent: 4069890 (1978-01-01), Gottliebsen
patent: 4199123 (1980-04-01), Weber

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