Woodworking – Combined machine – Planing and sawing
Patent
1985-09-11
1987-01-20
Bray, W. D.
Woodworking
Combined machine
Planing and sawing
83360, 83367, 144242A, 144242E, 144246F, 144357, B27C 900, B27B 100
Patent
active
046374434
ABSTRACT:
A saw assembly for reducing logs while passing the logs at least once through the assembly and resawing the resultant sawn blocks while re-passing the blocks at least once through the saw assembly. The assembly comprises a pair of chippers (1) and at least one pair of band saws (2) located downstream thereof, and a pair of guide-and-feed devices (9) located between the chippers and the band saws. The components in each of these pairs of assembly units are located opposite one another on different sides of the center line of the saw line and are adjustable in relation to the center line. In order to simplify the construction and handling of the saw assembly, the saw assembly includes means (21) which, when reducing passing logs, cause the guide-and-feed devices (9) to synchronously accompany the setting movements of the chippers (1) in relation to the center of the saw line, and means (23) which, prior to a resawing operation, displace the guide-and-feed devices (9) in relation to the chippers (1) in a direction towards the center of the saw line, for engagement with the sawn block which is to be resawn into planks, this block passing free of the chippers.
REFERENCES:
patent: 3692074 (1972-09-01), Nilsson
patent: 4239072 (1980-12-01), Merilainen
patent: 4440203 (1984-03-01), Ostberg
patent: 4485861 (1984-12-01), Nilsson
patent: 4548247 (1985-10-01), Eklund
AB A. K. Eriksson
Bray W. D.
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