Fire escape – ladder – or scaffold – Traversing – track-mounted – With vertically spaced second track
Patent
1989-01-05
1991-04-16
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Traversing, track-mounted
With vertically spaced second track
182128, 182150, 182187, E04G 310, E04G 314
Patent
active
050075004
ABSTRACT:
A device for the maintenance of large-capacity containers such as storage tanks or the like vessels is described, which consists of a scaffolding structure for accommodating a plurality of working platforms along the container wall, such scaffolding structure reposing swingably around the vertical centerline which is the rotation axis. For this purpose, the device is movable along the total peripheral area of the upper container wall. In three preferred embodiments, the device may consist either of a centrally supported pivot mounting supported on the container roof, which is horizontally adjustable and vertically settable around an air dome, or of a load-carrying support which is placed centrally on the container roof, or finally of a load-carrying support reposing movably on a uppermost container edge and a tank catwalk, such load-carrying support being composed in turn of a lattice carrier and a frame.
REFERENCES:
patent: 1101839 (1914-06-01), Elvestrom
patent: 3114433 (1963-12-01), Downs
patent: 3537545 (1970-11-01), Willis
patent: 3854550 (1974-12-01), Shingler
patent: 4234055 (1980-11-01), Beeche
Blackman William D.
ISB Generalunternehmen fur Industriespezialbau
Machado Reinaldo P.
Weintraub Arnold S.
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