Method and apparatus for the chipping dissection of tree logs into all-round machined lumber products
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United States of America Patent
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-
May 4, 1982
Grant Date -
N/A
app pub date -
Apr 16, 1980
filing date -
Jul 18, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved method and apparatus for processing elongated logs to give maximum production of lumber is described wherein the log is initially cut to present four flattened faces thereon with wany edge regions between adjacent faces, followed by first partially milling the wany edge regions with severance of boards from opposed log faces, and thereafter completing the milling of the wany edge regions with subsequent removal of additional finished boards. Such stepwise partial milling of the wany edge regions materially increases the amount of lumber obtainable from a given log, as compared with prior practices. In preferred forms, the log is processed in an improved apparatus including log turning stations having a pair of pivotally mounted, opposed log-gripping arms; the respective arms are supported on a circular frame which is itself rotatable about the longitudinal axis of the log.
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