GB1088101A - Improvements in or relating to methods of manufacturing wood veneers and to the woodveneers so produced - Google Patents

Abstract

1,088,101. Woodworking. AARONSON BROS. Ltd and L. AARONSON. Dec. 30, 1964 [Jan. 8, 1964], No. 915/64. Heading B5L. A method of manufacturing a sheet of wood veneer comprises forming a solid block of glued wood laminations by assembling a stack of wood laminations which comprises a majority of laminations of substantially the same size with a plurality of laminations of substantially smaller size, which plurality is small in relation to the number of laminations in the stack, layers of adhesive being provided between successive laminations in the stack, and compacting the stack under pressure until the adhesive sets to form the solid block, and slicing a sheet of wood veneer from the block with the blade of a veneer cutting machine. The stack of wood laminations may consist of the majority of laminations 2, Fig. 1, of the same length and laminations 3, 4, 5, 6 of shorter length, each of the latter being of a different length to another. A shorter lamination is placed after each ten to twelve longer laminations in assembling the stack, the longest, 3, of the shorter laminations being used first and followed by succeeding shorter laminations 4, 5, and 6. A synthetic resin adhesive is placed between the laminations and the assembly compressed in a press until the adhesive is set. The upper member of the press may be at an angle to compensate for the lesser thickness of one end of the stack because of the shorter laminations. After removal from the press, the blade of a veneer cutting machine acts in a plane transverse to the plane of the laminations to peel veneer sheets from the block. The straight grain of the veneer sheets is curved at the parts where the shorter laminations terminate. Alternatively, the block may be mounted concentrically or eccentrically in a rotary veneer cutting machine to produce a continuous sheet of veneer. In another embodiment, the shorter laminations are arranged in one or more assemblies between the longer laminations with the laminations of each assembly being in contact with one another so that each assembly has a rhomboidal crosssection as shown in Fig. 5. In a further embodiment, the shorter laminations are arranged on the upper surface of the assembly of longer laminations in the order of increasing size.