Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder
Patent
1976-02-18
1977-01-04
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
182 63, 182145, E04G 118, E04G 134
Patent
active
040007898
ABSTRACT:
An improved portable scaffold is the subject of the present invention. A base framework is provided with horizontally telescoping feet to accommodate free movement of the scaffold while still affording maximum stability during use. A telescoping tongue member likewise facilitates transportation but during use of the lifting device may be moved to an out of the way position substantially underlying the plane of the framework. Foldable upright standards are coupled with the framework at each end and mount platform supporting means for movement therealong. A platform member which substantially spans the distance between the upright standards is coupled with the platform supporting means at each end by a hangar bracket which accommodates 90.degree. pivotal movement between the supporting means and the platform. Each bracket also extends away from the supporting means a distance at least equal to the width of one upright standard so as to accommodate folding of the standards one on top of the other.
REFERENCES:
patent: 2354906 (1944-08-01), Bailey
patent: 2420903 (1947-05-01), Noble
patent: 3130815 (1964-04-01), Zahner
patent: 3378101 (1968-04-01), Zeitler
patent: 3463265 (1969-08-01), Clover
patent: 3576233 (1971-04-01), Thatcher
patent: 3682271 (1972-08-01), Boyd
Engel Edward
Machado Reinaldo P.
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