Method and means of conveyance of solid matter in pieces or particles
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United States of America Patent
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Nov 12, 1991
Grant Date -
N/A
app pub date -
Jun 28, 1990
filing date -
Jul 3, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and means of conveyance for solid material, f.ex. tree trunks (6) or bark, whereby the solid material is conveyed with parallel, oblong transfer elements (4) moving back and forth in transfer direction. A larger part of the surface of the transfer elements (4) is moving forward at a time than moving backward. The speed of the return motion of the transfer elements is higher than that of the feed motion of the transfer elements. Transfer elements (4) at sides of the conveyor have been inclined on their longitudinal axis so that they slope towards the center of the conveyor. In this way the friction force between the particles (6) of the material to be conveyed is increased and the friction force between the material (6) to be conveyed and the transfer elements (4) is decreased.
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