Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended
Patent
1990-05-17
1993-10-12
Chotkowski, Karen J.
Fire escape, ladder, or scaffold
Platform with elevating or lowering means
Suspended
182132, 182223, E04G 120
Patent
active
RE0344044
ABSTRACT:
A portable scaffold includes a base or chassis mounted on wheels for site-to-site towing or "man-handled" positioning at a job site. Rising rigidly from the chassis are two masts, spaced apart lengthwise of the chassis. A platform is vertically slidably carried by the mast for selective elevation and descent via power devices. Each mast may be increased in height by the addition thereto of a mast extension that functions as a prolongation of the basic mast. One of the power devices is alternately positionable to function as a temporary source of power for moving the scaffold through short distances. Strap elements are provided for temporarily bracing the masts from a structure being worked on by workmen on the platform.
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Dupont Andre G.
Dupont Gaston L.
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