FIELD: wood-working industry.
SUBSTANCE: proposed method comprises locking timber by undamaged zone, cutting timber into sectors in lengthwise direction, cutting said sectors into parts, coupling and jointing together of side surfaces. First, shape and parametres of circular damage are defined, for example ring shakes, frost hearts, dotes, tangential mottles and abnormal colour of annual rings. Separation of damaged parts is effected along boundaries of damaged layers, parallel to tangential line, at the point of intersection of timber generatrix and sector angle bisectrixes.
EFFECT: higher yield of high-quality sawn timber.
5 cl, 16 dwg
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