Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder
Patent
1985-07-15
1986-03-18
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
182155, 182118, E04G 134
Patent
active
045762511
ABSTRACT:
An improved scaffold is proposed which can be easily assembled, and folded. It comprises a scaffold plate, a pair of ladders, hook members each secured to the scaffold plate, and holder members each pivotally mounted on the hook members. The hook members are adapted to receive one of the crossbars on the ladder and to support the holder members.
REFERENCES:
patent: 337988 (1886-03-01), Palmer
patent: 472406 (1892-04-01), Smith
patent: 925598 (1909-06-01), Reutfrow
patent: 2062473 (1936-12-01), Norton
patent: 2593386 (1952-04-01), Dirks
patent: 3128842 (1964-04-01), Satrum
patent: 3493079 (1970-02-01), Dudschus
patent: 3739876 (1973-06-01), Goldberg
patent: 4046221 (1977-09-01), Edenfield
Aikawa Eiichi
Matsuura Masahiro
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