Method and apparatus for producing lumber products which are mac

Details Method and apparatus for producing lumber products which are mac Method and apparatus for producing lumber products which are mac

1983-12-01

1986-02-18

Bray, W. D.

Woodworking

Process

Mechanical cutting or shaping

144 39, 144 41, 144369, 144377, 834352, 83708, B27C 108

Patent

active

045706875

ABSTRACT:
A method and apparatus for producing lumber products which are machined on all sides. With this method, the curved trunk which is to be machined, and which increases approximately conically in thickness toward one of its ends, is first, prior to flattening its longitudinal sides and cutting off boards, aligned relative to a processing line of sawmill equipment in such a way that its longitudinal central plane, which is disposed in the direction of curvature of the trunk, extends approximately parallel to the machining surfaces of side cutting devices which flatten the longitudinal sides of the trunk. After that, a portion of the large trunk end which projects beyond an alignment plane is flattened. This flattening is effected in a plane which is tangential to the two trunk ends on a convexly curved surface portion thereof.

REFERENCES:
patent: 4262572 (1981-04-01), Flodin
patent: 4316491 (1982-02-01), Kearnes et al.

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