B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
143/29, 144/49
B27B 1/00 (2006.01) B27B 25/00 (2006.01) B27B 25/02 (2006.01) B27B 31/06 (2006.01)
Patent
CA 1051324
ABSTRACT OF THE DISCLOSURE The sawing of boards, planks or other sawn lumber from an elongated timber log or cant by feeding the log or cant longitu- dinally through a saw; sensing the longitudinal configuration of a longitudinal configuration of an unsawn longitudinally extending side surface of the log or cant on one side only of the log or cant as the latter passes through the saw; orientating the log or cant relative to the saw in accordance with the sensed configura- tion by exerting lateral orientating pressure, which is only re- silient on the log or cant, on the unsawn side thereof on which the longitudinal configuration is sensed to saw the log or cant longitudinally along at least one saw line substantially parallel to the sensed configuration. The lateral inward extent of the action of the resilient orientating pressure on the log or cant is restricted according to a required spacing of the saw line from the sensed configuration. For the sawing of a crooked log or cant the configuration of a longitudinally extending concave side sur- face is sensed and the log or cant is sawn "round the curve" sub- stantially parallel to the sensed concave configuration.
232053
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