D - Textiles – Paper – 21 – D
Patent
D - Textiles, Paper
21
D
209/98
D21D 5/06 (2006.01) D21D 5/02 (2006.01)
Patent
CA 1288732
Abstract of the Disclosure In screening apparatus for paper fiber stock of the type wherein a cylindrical perforate screen member defines screening and accepts chambers on the inner and outer sides thereof in a closed housing, the inlet chamber for stock to be screened is located below the screening chamber to facilitate elimination of high specific gravity reject materials before the-stock reaches the screening chamber. Special provision is made for accelerating the flow of plastic and other reject materials of lower specific gravity than wet paper fibers to a reject chamber above the screening chamber, and special provision is also made for preventing recirculation of such reject materials to the lower end of the screening chamber and thereby concentrating them in the reject chamber from which they are removed by way of a dewatering device that delivers essentially dry reject material for ready disposal. The effectiveness and efficiency of the apparatus is further promoted by special provision for washing fiber away from reject materials in the upper portion of the screening chamber and thereby increasing the overall yield of recovered fiber.
509722
Martin Andrew C.
Sauzedde Christian
Black Clawson Company (the)
Gowling Lafleur Henderson Llp
Martin Andrew C.
Sauzedde Christian
The Black Clawson Company
LandOfFree
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