Fire escape – ladder – or scaffold – Plural platforms – common support – Stepped
Patent
1990-05-21
1991-03-05
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Plural platforms, common support
Stepped
182142, E04G 310
Patent
active
049970623
ABSTRACT:
This relates to a swing scaffold assembly comprising a plurality of frames disposed in alignment with each other in spaced apart generally parallel planes. Each such frame includes a lower cross beam and a secondary frame structure supported on an intermediate section of each said cross beam. Opposing end portions of each cross beam extend outwardly from the intermediate beam section. A pair of uprights are each connected to and extend upwardly from the opposing ends of each cross beam. An upper cross member spans the distance between and is interconnected to the upper ends of each pair of these uprights. The secondary frame structure for each frame is arranged such that when the frames are in their spaced apart parallel positions they serve to provide a plurality of raised centrally located supports upon which longitudinally extending planks or the like may be laid thereby to provide a raised central bench for supporting building materials at a height convenient for masons and the like. At the same time those portions of each cross beam which extend outwardly from the intermediate section likewise provide spaced supports for longitudinally extending planks or the like thereby to provide lengthwise extending walkways on opposing sides of the raised central bench when the scaffold is in use. Thus, this raised central bench serves for the storage of brick and other building materials. The bricklayers, for example, can work from the walkway on the building side of the scaffold while the laborers or tenders work in the walkway on the opposite side of the central bench thus avoiding interference between these two groups of workers and providing improved productivity gains.
REFERENCES:
patent: 428769 (1890-05-01), Dodge
patent: 1550364 (1925-08-01), Johnston
patent: 1616743 (1927-02-01), Ericsson
patent: 2904126 (1959-09-01), Meng
patent: 2923374 (1960-02-01), Harwell
patent: 3169604 (1965-02-01), Pranger
patent: 3318414 (1967-05-01), Meek
patent: 3438460 (1969-04-01), Solari
"Griphoist Newsletter"--Winter 1990.
"Standard"Machines--with Guard Rail Supports--Undated.
"Godl Medal"--Safety Scaffolding Machines Bulletin SS-5C-8 Pages Undated.
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