| 摘要 |
A butt reducer machine is provided to remove excess wood from the swelled butt ends of logs. Cutting heads supported on pivoting arms, carried in turn within a rotating frame, are caused to oscillate circumferentially about the portion of the log to be removed. This butt-removal process may be carried out while a log is in motion longitudinally, either before or after the log enters a de-barking machine. The process may also be effected on a stationary log.
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