Access equipment

Details Access equipment Access equipment

1984-10-15

1987-02-17

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

182 19, 182 63, B66F 1104

Patent

active

046432736

ABSTRACT:
Access equipment of the type comprising a turntable on a mobile base and having a lower boom, at least one upper boom and a platform carried by the upper or uppermost boom has the operation of the lower and upper booms interlocked so that the lower boom must be locked in an elevated position before the upper boom or booms can be elevated, and at least one upper boom is extensible.

REFERENCES:
patent: 2905262 (1959-09-01), Zwight
patent: 3461989 (1969-08-01), Prescott
patent: 4081055 (1978-03-01), Johnson
patent: 4411368 (1983-10-01), Manjot

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