Scaffold

Details Scaffold Scaffold

1992-12-17

1994-05-10

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Platform with elevating or lowering means

182 63, 182113, 182148, E04B 120

Patent

active

053100182

ABSTRACT:
An improved scaffold of the lift type having a base and a working platform on top of the base. Vertical support posts are provided at the corners of the base passing through guide means at the corners of the platform. Cooperating drive means on the platform and posts are used to raise or lower the platform on the posts relative to the base. A motor on the platform selectively operates the drive means.

REFERENCES:
patent: 1085207 (1914-01-01), Irby
patent: 1095391 (1914-05-01), Fogle
patent: 1332011 (1920-02-01), Weinberg
patent: 2753224 (1956-07-01), Truche et al.
patent: 2948363 (1960-08-01), Hopefeld
patent: 4294332 (1981-10-01), Ready
patent: 4967733 (1990-11-01), Rousseau
patent: 5102179 (1992-04-01), Royer

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