Device for use in wood chippers
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United States of America Patent
Stats
-
Oct 8, 1985
Issued Date -
N/A
app pub date -
Apr 14, 1983
filing date -
Dec 12, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Device for use in connection with wood chippers of the type comprising a rotary disc (15) whereof one face is fitted with substantially radially positioned knives (1) which are attached thereto by means of knife holders (2) incorporating a log guiding surface. To give a twisted form to one face of the knife holders (2) the latter are fabricated by surface grinding of the log guiding face while the knife holder (2) is clamped in a grinding fixture (20) in a state of torsion which, after removal from the grinding fixture, gives the desired twisted shape to the log guiding face. After removal from the grinding fixture (20) the knife holder (2) is clamped in a torsion-free state in the chipping disc (15).
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