Fire escape – ladder – or scaffold – Means maintaining step lever on horizontally pivoted ladder
Patent
1990-06-15
1991-08-27
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Means maintaining step lever on horizontally pivoted ladder
182115, 182131, 182145, E04G 120, E04G 126
Patent
active
050426125
ABSTRACT:
An upstanding support structure is provided defining an elevated horizontally elongated stationary platform extending along one side of the support structure and a horizontally elongated second platform is mounted, in cantilever fashion, from the one side of the support structure for vertical shifting relative thereto so as to be downwardly displaceable over the upper portion of an elongated bulk material receiving vehicle disposed along side the one side of the support structure adjacent the lower end thereof. The second platform includes a first side fence extending along the side thereof adjacent the support structure as well as end fences extending across the ends of the second platform and appreciably outwardly beyond the outer side of the second platform. An outer fence extends between and interconnects the outer ends of the end fences and the second platform and the outer side fence are positionable over remote opposite side upper portions of a bulk material receiving vehicle disposed beneath the second platform.
REFERENCES:
patent: 1808492 (1931-06-01), Bocchino
patent: 2569653 (1951-10-01), Boedecker
patent: 3576233 (1971-04-01), Thatcher
patent: 3638757 (1972-02-01), Sampson
patent: 4013140 (1977-03-01), Pradon
patent: 4125173 (1978-11-01), Rust
patent: 4498556 (1985-02-01), Garton
patent: 4572328 (1986-02-01), Benko
patent: 4679657 (1987-07-01), Bennett
Bennett Ronald W.
Pech Bruce A.
Aluminum Ladder Company
Machado Reinaldo P.
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