B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
B27B 31/00 (2006.01) B27B 1/00 (2006.01) B27B 15/06 (2006.01) B27B 29/08 (2006.01) B27B 33/00 (2006.01)
Patent
CA 2360707
The invention is related to a method and an apparatus for dis- secting a log into boards, the log being adapted to be dis- placed on a longitudinal conveyor in a longitudinal direction. For determining the board length, it is prior art to cut the log at its periphery by means of a cross-cut saw prior to dis- secting the log into boards. As the cross-cut saw is station- ary, the determination of the cutting depth is effected by displacing the log transversally. In the case of larger cutting depths, the log must be displaced back in the transversal di- rection after effecting the cross-cut so that a board of de- sired thickness may then subsequently be dissected from the log by means of a band saw. During that back displacement, it may happen that the log slips on the longitudinal conveyor so that the dimensional accuracy is lost. The invention solves this problem by displacing the band saw blade at least as far away from the log in the transversal direction prior to the working of the log, so that the log may be displaced past the band saw blade without coming in contact with the band saw blade.
Bergvall Jean Gunnar
Dietz Hans
Esterer Wd Gmbh & Co.
Sim & Mcburney
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