Fire escape – ladder – or scaffold – Combined
Patent
1991-03-01
1992-08-18
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Combined
182108, 182214, E06C 712, E06C 748
Patent
active
051391082
ABSTRACT:
A stabilized ladder power winch assembly includes a winch mounting subassembly with two channeled portions, a reversible mount bracket subassembly with a cantilevered portion, a tiltable prop subassembly having a safety rung support extension, a frame and corresponding and aligned handle and leg portions, and a stabilizer subassembly with lateral support portions. Each of the subassemblies is attached or mounted in combination with a conventional ladder for cooperating to raise an object from the ground or a base surface to the roof of a building or elevated surface. The winch mounting subassembly is mounted on a consecutive pair of rungs of a ladder and supports a conventional winch with a hoist line in a secure position for lifting an object. The reversible mount bracket subassembly is slid and guided into position over the upper portion of a ladder's siderails, and supports a conventional pulley unit to receive and transmit the hoist line from the winch supported on the winch mounting subassembly to the ground surface for use in lifting and lowering an object. The tiltable prop subassembly engages a rung of a ladder and extends the ladder away from a flat or slanted roof to permit an object being lifted from the ground to pass between the ladder and the building, and through and within the frame portion of the subassembly itself. The safety rung support extension portion has a backup safety channel for engaging a ladder rung if it slips from a primary support channel. The stabilizer subassembly has corresponding tracked portions to guide the support feet of a ladder into secure position and prevent movement of the ladder along any axis from its installed position.
REFERENCES:
patent: 156541 (1874-11-01), Conrad et al.
patent: 800896 (1905-10-01), Biehler
patent: 1386511 (1921-08-01), Krahl
patent: 2405505 (1946-08-01), Kleidon
patent: 2459621 (1949-01-01), Cobb
patent: 3074508 (1963-01-01), Book
patent: 3115211 (1963-12-01), Ostrander
patent: 3428145 (1969-02-01), Lyon
patent: 3430734 (1969-03-01), Embree
patent: 4128228 (1978-12-01), Ziegelmann
patent: 4598795 (1986-07-01), Larson
Brown Monroe Alex
Machado Reinaldo P.
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