Rotatable work platform

Details Rotatable work platform Rotatable work platform

1980-02-04

1981-06-09

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

182 63, 182141, B66F 1104

Patent

active

042719267

ABSTRACT:
A work platform frame is connected to a vertically disposed pin fixed to one end of a boom. An idler bracket is also pivotally mounted on the pin and has outwardly extending first and second idler arms, which are offset, with respect to each other, by between 90.degree. and 120.degree.. A first hydraulic assembly is connected between the first idler arm and the work platform frame. A second hydraulic assembly is connected between the second idler arm and the boom. Hydraulic fluid is selectively applied to the first and second hydraulic assemblies to cause rotation of the work platform about the pin through an arc of 180.degree., each hydraulic assembly and its associated idler arm accounting for 90.degree. of such rotation.

REFERENCES:
patent: 2646182 (1953-07-01), Maas
patent: 2998861 (1961-09-01), Hotchkiss
patent: 3056465 (1962-10-01), Gerrans
patent: 3233700 (1966-02-01), Myers
patent: 3462103 (1969-08-01), Strom
patent: 3605941 (1971-04-01), Edwards
patent: 3709322 (1973-01-01), Mitchell
patent: 3841436 (1974-10-01), Grove
patent: 3937340 (1976-02-01), Grove

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