Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By laterally or vertically moving successive items in...
Patent
1977-01-17
1978-10-24
Werner, Frank E.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By laterally or vertically moving successive items in...
198508, 198516, 198519, B65G 6528
Patent
active
041217241
ABSTRACT:
Apparatus for progressively removing bulk material from a dump or stockpile having a generally trapezoidal cross-section includes a gantry having a bridging girder extending between a pair of upright end supports. At least one of the supports is movable along a track extending alongside or around the base of the dump or pile. The gantry supports scraper means for scraping material from the top of the pile, and the scraper means together with the girder can be jointly raised or lowered between the upright end supports. Each upright end support includes guide means which laterally retain the girder perpendicular to its longitudinal axis while permitting free vertical movement of the girder.
REFERENCES:
patent: 2797823 (1957-07-01), Huntzinger
patent: 3604572 (1971-09-01), Strocker
patent: 3621978 (1971-11-01), Smith
patent: 3704796 (1972-12-01), Dedons et al.
patent: 3708056 (1973-01-01), Strocker
patent: 3814268 (1974-06-01), Fischer et al.
Gustav Schade Maschinenfabrik
Werner Frank E.
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