Fire escape – ladder – or scaffold – Plural platforms – common support – Mounted for relative motion
Patent
1985-03-07
1986-02-18
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Plural platforms, common support
Mounted for relative motion
182152, 108112, E04G 134, E04H 310
Patent
active
045707510
ABSTRACT:
An adjustable-height scaffolding comprises a plurality of telescoping variable height adjustable supports each having an outer pipe and an inner pipe slidably mounted inside the outer pipe of the supports and two scaffolding platforms pivotally attached to the top portion of the telescoping supports with horizontal pivot axes. The scaffolding is structured so that each of the scaffolding platforms has an upright resting position for storage, transport, and the like and a collapsible horizontal working position. Four of the telescoping supports are provided as central supports for the scaffolding. The central supports form the corner posts for a substantially rectangular frame supporting the scaffolding platforms. Two of the telescoping central supports are pivotally attached to each one of the scaffolding platforms adjacent the other one of the scaffolding platforms. The top portion of the inner pipes of the corner posts are attached pivotally to the scaffolding platforms. The pair of corner posts associated with each of the scaffolding platforms is independent of the other pair of corner posts so that the heights of each platform are independently adjustable.
REFERENCES:
patent: 2978754 (1961-04-01), Wilson
patent: 3312305 (1967-04-01), Waun
patent: 3318269 (1967-05-01), Kinn
patent: 3999491 (1976-12-01), Wilson
patent: 4054096 (1977-10-01), Wilson
patent: 4074636 (1978-02-01), Wilson
patent: 4089522 (1978-05-01), Rock
patent: 4327650 (1982-05-01), Bue
Prospectus "The SICO Performer" of Sico Incorporated, Minneapolis, Minnesota, U.S.A.
Dubno Herbert
Machado Reinaldo P.
Ross Karl F.
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