Method and apparatus for sawing timber
AssigneeVanerskog AB
InventorNils E. Lindstrom
Life of this patent
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Abstract
The invention relates to a method and apparatus for sawing logs having a curved longitudinal length to obtain maximum recovery of sawed planks therefrom. There are provided several sawing stations for handling the curved log including edge sawing, heart split sawing along the curved center line of the log and perpendicular to the edge sawed surfaces to produce two sections having curved center cut surfaces, and dividing sawing each section parallel to the center cut surface.
Claims15
A method for sawing timber which has an overall curved and non-curved longitudinal length comprising edge sawing said timber along opposite sides of said non-curved longitudinal length to produce parallel diametrically opposed edge cut surfaces having said curved longitudinal length therebetween, heart split sawing said edge sawed timber perpendicular to said parallel edge cut surfaces and along the curved center line of said curved longitudinal length to produce two curved edge sawed sections of said timber each having a curved center cut surface, dividing sawing each of said heart split cut sections by at least one saw cut along the longitudinal length of said section parallel to said center cut surface.
An apparatus for sawing timber which has an overall curved and non-curved longitudinal length comprising edge sawing means for sawing said timber along opposite sides of said non-curved longitudinal length to produce parallel diametrically opposed edge cut surfaces, heart split sawing means for sawing said edge sawed timber perpendicular to said parallel edge cut surfaces and along the curved center line of said curved longitudinal length to produce two curved edge sawed sections of said timber each having a curved center cut surface, dividing sawing means for sawing said heart split sections with at least one saw cut along the longitudinal length of said section parallel to said center cut surface.
Dependencies are inferred from the claim text.