Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Patent
1990-03-30
1991-04-16
Olszewski, Robert P.
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
198499, 152565, B65G 4500
Patent
active
050075233
ABSTRACT:
A conveyor belt scraper assembly includes a plurality of blade scraper units detachably mounted to a support shaft with a clamping bolt and hold-down bar arrangement. The plural scraper units are preferably molded from resilient material. The one or more scraper units adapted to contact center portions of the conveyor belt is preferably formed of a harder material than the scraper units contacting side portions of the belt. The assembly is driven into and out of scraping contact with the conveyor belt into means of a piston and cylinder arrangement with the cylinder preferably actuated with pressurized water from conventional sources as available in a mining environment. The cylinder is transparent to permit visual monitoring of the location of the piston head. First and second marker tapes fixed to the transparent cylinder provide points of reference indicative of blade wear and the need for replacement when the piston head contacts the second marker.
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Wolansky et al, Fundamentals of Fluid Power, 1977, pp. 58-68.
Machine Design, Fluid Power Reference Issue, Sep. 27, 1984, pp. 147-149.
Gastineau Cheryl L.
Olszewski Robert P.
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