B - Operations – Transporting – 27 – L
Patent
B - Operations, Transporting
27
L
144/86
B27L 11/00 (2006.01) B02C 18/12 (2006.01)
Patent
CA 1119079
ABSTRACT OF THE DISCLOSURE A bark shredder is disclosed for shredding bark and other waste wood products into small pieces. The shredder rotates in either direction unlike existing bark shredders which allows twice the normal operating time between servicing. The shredder has a casing defining a cylindrical working chamber with a top inlet and a bottom symmetrical outlet, the casing having a top tubular part and a bottom tubular part with means to join the top and bottom parts together. A rotor is mounted axially in the chamber and a plurality of fixed shredding elements are detachably mounted in a first circle between the top tubular part and the bottom tubular part of the casing, the fixed elements extend radially inwards from the casing and each of the fixed elements are symmetrical about a line extending radially from the rotor axis. The rotor has a plurality of rotating shredding elements pivoted to the rotor in a second circle and located above but adjacent to the fixed elements. The fixed and rotating elements are shaped to co-operate with each other to shred material in the chamber when the rotor is rotated in either direction.
346183
Fetherstonhaugh & Co.
Uniweld Inc.
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