Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Patent
1987-07-22
1988-09-06
Spar, Robert J.
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
152565, B65G 4500
Patent
active
047686448
ABSTRACT:
A scraper device having a number of identical scraper elements that extend one beside another substantially over the width of a conveyer belt. Each scraper element basically comprises: a metal scraper or doctor blade that is in resilient engagement with the conveyer belt; an arm that supports the scraper blade; and a resilient articulation that is disposed at the free end of the support arm. The stationary part of the articulation is releasably secured to a common support tube that extends transverse to the direction of conveyance and parallel to the conveyer belt. The point where the scraper edge engages the belt in relation to the pivot axis of the resilient articulation is such that the base of a perpendicular line from such axis to the belt lies on the approach side of the belt at a slight distance ahead of the point of engagement. A pair of retaining bolts is provided to secure each scraper element, each such pair being disposed on the support tube with their axes symmetrical of a plane extending along the perpendicular line and transverse to the direction of conveyance, with the ends of the bolts projecting toward the conveyer belt, the stationary part of the articulation being adjustably secured to the projecting ends. This form of securing enables individual scraper elements to be adjusted while the conveyer belt is moving, and also obviates shifts in the alignment of the scraping edge relative to scraper elements which have not been adjusted.
REFERENCES:
patent: 3841470 (1974-10-01), Meguro
patent: 4036351 (1977-07-01), Reiter
patent: 4359150 (1982-11-01), Bowman et al.
patent: 4535883 (1985-08-01), Kerr
patent: 4633999 (1987-01-01), Perneczky
Kimms Lyle K.
Spar Robert J.
VULKAN Verfahrenstechnik B. Hackforth GmbH & Co. KG
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