Curved sawing of timber

Details Curved sawing of timber Curved sawing of timber

B - Operations, Transporting

27

B

144/49

B27B 1/00 (2006.01)

Patent

CA 1036911

ABSTRACT OF THE DISCLOSURE The present invention provides a method for sawing timber in which the timber is successively subjected to edge sawing, heart split sawing and dividing sawing, the timber at the edge sawing is given a plain parallel form by two diametrically opposed saw cuts extending parallel with the plane of the log corresponding to the largest curve form, and the heart split cutting takes place by means of a saw cut extending perpendicularly to the plain parallel surfaces obtained by the edge sawing and extending along the centre line of the log, whereby the heart split sawing cut extends along a line corresponding to the curve form of the log, and the dividing sawing is made by one or more saw cuts extending parallel with the heart split sawing cut. The present invention also provides apparatus for sawing timber comprising an edge sawing station, a heart split sawing station and a dividing sawing station, the heart split sawing station being formed with means for laterally moving the log so that the heart split sawing follows a curved path corresponding to the curvature of the log.

246054

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