Aerial lift platform apparatus with capacity indicator

Details Aerial lift platform apparatus with capacity indicator Aerial lift platform apparatus with capacity indicator

1980-05-30

1982-04-27

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

182 18, 212157, 116298, G01D 2100, B66C 1314, B66F 1104

Patent

active

043266010

ABSTRACT:
A workman's lift platform apparatus has a vertically swingable and extensible boom with a workman's platform at the outer end. A color coding indicating the amount of boom extension is provided on the fly section of the boom, visible to the workman in the platform, and an indicator plate having corresponding color coding is provided adjacent the controls on the platform. A Bowden cable is connected to the indicator plate and the fly section, to move the indicator plate proportionately to the angle of the boom to the horizontal.

REFERENCES:
patent: 1773589 (1930-08-01), Lichtenberg
patent: 2374298 (1945-04-01), Nasset
patent: 2569890 (1951-10-01), Hicks
patent: 3011261 (1961-12-01), Riley
patent: 3122125 (1964-02-01), Towne
patent: 3223249 (1965-12-01), Cady
patent: 3490015 (1970-01-01), Nixon
patent: 3922789 (1975-12-01), Sarrell
patent: 3961685 (1976-06-01), Kozai
patent: 4052602 (1977-10-01), Horn
patent: 4211332 (1980-07-01), Pitman

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