Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1989-08-07
1992-06-02
Hajec, Donald T.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209393, 209396, B07B 116
Patent
active
051179830
ABSTRACT:
A bar screen (10) for sizing wood chips which includes a plurality of parallel bars (12--12) supported at their respective ends (14, 16) in such a manner and driven in such a manner that each bar moves both longitudinally and vertically. Two alternating sets of bars (12--12) are included, one set being 180.degree. removed in position relative to the other set. The speed and movement of the bars (12--12) is such that the wood chips are tipped up to a vertical orientation and supplied with such a momentum that the chips break contact with the bars and encounter a slot between adjacent bars in their thickness dimension.
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Hajec Donald T.
Weyerhaeuser Company
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