Method and apparatus for producing lumber products which are machined on all sides

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United States of America Patent

PATENT NO 4570687
SERIAL NO

06557351

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
WURSTER U DIETZ GMBH U CO MASCHINENFABRIKD-72072 TÜBINGEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dietz, Hans Ammerbuch-Pfaffingen, DE 13 63

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