FIELD: process engineering.
SUBSTANCE: invention relates to woodworking industry and may be used for making slat. Two-edged cant is divided into two three-edged cants to be cut parallel with rise into edge-surfaces lumber. Remainders of core parts of three-edged bars are turned relative to each other through 180 degrees in horizontal plane and bonded together to make the bar to be, then, cut into lumber. Produced segments are cut parallel with lengthwise axis to obtain lumber of rectangular variable cross-section to be turned relative to each other through 180 degrees in horizontal plane and jointed together to make the bar. Lateral sides of segments are used to produce triangular cross-section lumber to be turned through 180 degrees relative to each other and jointed together to make the board.
EFFECT: higher quality, decreased wastes and lower labour input.
9 dwg
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