| 摘要 |
A method and apparatus for cutting portions having defects therein from lengths of timber includes determining an aligning distance for a given one of the lengths of timber as the timber length moves along a conveyor, the aligning distance being defined by the distance between a cutting line located next to the defect and one of a series of parallel lines which extend in the conveying direction, indexing the timber length in a direction transverse to the conveying direction to align the cutting line with one of the parallel lines and then incrementally moving the timber length in a direction transverse to the conveying direction a member of incremental distances determined by the particular one of the series of parallel lines with which the cutting line is aligned and cutting the timber length along the cutting line.
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