Manlift

Details Manlift Manlift

1983-06-15

1985-04-16

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

B66F 1104

Patent

active

045110158

ABSTRACT:
A manlift having improved stability and safety. A telescoping vertical mast driven by a package of integrally attached cylinders is attached to a rotating base plate slightly offset from the center line of rotation of the base plate. The direction of offset is in the direction opposite to the position of the aerial platform. The manlift also includes a novel arrangement for straddle-mounting the boom, whereby the weight of the cylinders driving the boom through its arc tends to counterbalance the platform. The straddle-mount also allows optimum working height while maintaining low travelling height in the vehicle.

REFERENCES:
patent: 2996141 (1961-08-01), Eitel
patent: 3179267 (1965-04-01), Bliss
patent: 3224528 (1965-12-01), Hubbard
patent: 3767007 (1973-10-01), Garnett
patent: 3826334 (1974-07-01), Spillman
patent: 4088200 (1978-05-01), Cowley
patent: 4133411 (1979-01-01), Curb
patent: 4280589 (1981-07-01), Merrick

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