Method and apparatus for moving a platform into a suspended outb

Details Method and apparatus for moving a platform into a suspended outb Method and apparatus for moving a platform into a suspended outb

1984-03-07

1985-09-03

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Platform with elevating or lowering means

Suspended

E04G 310

Patent

active

045387052

ABSTRACT:
A pair of stanchions (12) is mounted on a roof (4) for rotation about spaced apart vertical axes (18). Each end of an elongated platform (22) is connected to an upper horizontal portion (16) of one of the stanchions (12). Platform (22) is raised by winches (24). Workers (W.sub.1, W.sub.2) positioned on platform (22) push and pull on horizontal portions (16) to rotate stanchions (12 ) and move platform (22) into a suspended position outboard of the structure (2). Each horizontal portion (16) is provided with an outwardly extending lever (34) having a pull line (32) at its outer end. Workers (W.sub.1, W.sub.2) use levers (34) and pull lines (32) to assist in rotating stanchions (12). Workers (W.sub.1, W.sub.2) alternate pushing and pulling on the horizontal portions (16) of their respective stanchions (12).

REFERENCES:
patent: 876194 (1908-01-01), Kersey
patent: 3302750 (1967-02-01), Arnold

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