Portable conveyor system with telescopic boom assembly and load

Details Portable conveyor system with telescopic boom assembly and load Portable conveyor system with telescopic boom assembly and load

1988-12-02

1989-10-24

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder with vertically moving platform or escape

Ladder supports platform

182 82, 182145, 182206, 187 10, E06C 504, B66B 920

Patent

active

048755478

ABSTRACT:
A portable conveyor system comprises an extensible and retractable boom assembly mounted on a transportable stationary support. The boom assembly comprises a plurality of longitudinally spaced rungs defining a series of supporting surfaces for a primary load carrier of the type described in applicant's co-pending U.S. patent application Ser. No. 75,410, now U.S. Pat. No. 4,793,437. The improvements described herein include a vertically adjustable hitch mounted forwardly on a frame of the primary load carrier. The hitch is adapted for attachment to the end of the cable of a winch assembly to move the endless tracks of the carrier in full contact along the supporting surfaces of the rungs. Other improvements include modified boom and overhead bracket assemblies, a resilient suspension system for the primary load carrier and a platform assembly attachable to either end of the boom assembly to alternately function as a loading or unloading platform.

REFERENCES:
patent: 582753 (1897-05-01), Lyst
patent: 2312833 (1943-03-01), Graham
patent: 3666054 (1972-05-01), Ellings
patent: 3693755 (1972-09-01), Terayama
patent: 3891062 (1975-06-01), Geneste
patent: 4183423 (1980-01-01), Lewis
patent: 4491196 (1985-01-01), Bocker
patent: 4546854 (1985-10-01), Bocker
patent: 4706779 (1987-11-01), Bono
patent: 4793437 (1988-12-01), Hanthorn

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