B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/43
B07B 13/04 (2006.01) B07B 1/15 (2006.01) D21B 1/02 (2006.01)
Patent
CA 1323600
ABSTRACT OF THE DISCLOSURE A disc screen wood chip sorter of the type having a series of corotating shafts, each of which is provided with an axially spaced series of concentric discs. The peripheries of the discs carried by one shaft interdigitate with those of the next adjacent shafts. The discs on any one shaft are maintained in parallelism by spacer elements in the general form of short cylindrical washers. The specific improvement of this invention relates to a novel configuration of these spacing elements. Each spacer end is provided with a flangeto thereby define a central, annular grooveor recess between the flanges, each annular receiving recess receiving a portion of the periphery of an adjacent disc, i.e., a disc mounted on a neighboring shaft. By virtue of this novel form of disc spacer, the disc screen sorter severly inhibits the passage of wood chips of a thickness greater than intended, i.e., chips of a thickness greater than the spacing between interdigitated discs. The use of discs with longitudinal thickness less than the desired thickness sort fully enhances the desirable effects of the novel spacer.
608351
Lang Michener Llp
West Fraser Inc.
LandOfFree
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