Portable lift with ladder

Details Portable lift with ladder Portable lift with ladder

1981-01-26

1983-06-28

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder and platform

182 63, 182127, E06C 520

Patent

active

043900801

ABSTRACT:
A multi-stage extensible tower on a wheeled base with a platform at the top has an extensible multi-sectioned ladder which slopes downwardly uniformly from the platform when the tower and ladder are in extended position. When the tower and ladder are in lowered, retracted position, the ladder sections have different slopes from one another. Outriggers are provided on the base which have a retracted position preventing extension of the tower. The platform has a fence which can be swung down level with the platform for conditions of reduced overhead clearance while the unit is being moved.

REFERENCES:
patent: 202426 (1878-04-01), Evans
patent: 369148 (1887-08-01), Wright
patent: 1148035 (1915-07-01), Miller
patent: 3112010 (1963-11-01), Mihalik
patent: 3464519 (1969-09-01), Whisler
patent: 3664458 (1972-05-01), Sterns
patent: 3752261 (1973-08-01), Bushnell
patent: 4015686 (1977-04-01), Bushnell

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