Scaffold

Details Scaffold Scaffold

1994-02-23

1996-12-03

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Platform with elevating or lowering means

182146, E04G 120

Patent

active

055798659

ABSTRACT:
A modular scaffolding assembly in which the platform may move up or down in a continuous motion. A platform carriage is engaged with a tower by spring loaded friction blocks and climbs or descends the tower along a pair of stepped racks. Platform modules may be removably connected to the platform carriage.

REFERENCES:
patent: 3937301 (1976-02-01), Bertail
patent: 4293054 (1981-10-01), Pieri
patent: 4498556 (1985-02-01), Garton
patent: 4589520 (1986-05-01), Tapfer
patent: 4809814 (1989-03-01), St-Germain
patent: 5259479 (1993-11-01), St-Germain

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