Abstract: A method for producing lineal components with compatible ends on profile wrapped or laminated components. This method consists of inserting similar or dissimilar materials into a substrate, located in such a position that after applying a thin veneer, foil, paper, metal, plastic, composite, or other material on the outside of the product, the product can be machined by conventional or non conventional methods. The surfaces exposed through this machining process would not appear as an exposed piece of the substrate material but as a material that is similar in appearance to the thin veneer, foil, paper, metal, plastic, composite or other material thus providing the appearance of a solid or continuous component. This method of manufacture can also be useful to provide protection of surfaces that have been machined, similar to the protection afforded by the thin veneer, foil, paper, metal, plastic, composite or other material.

Abstract: A blinds slat has a major portion being strips of bamboo and a minor portion being one or more pairs of wooden strips that are located at or near opposite side extremities of the slat. The resulting composite bamboo and wooden slat as exemplary resistance to warping and other deleterious effects of exposure to sun and moisture. Also disclosed is a method for producing the slats that is particularly advantageous in avoiding environmental harm, in that only small amounts of wood are used.

Abstract: Apparatus for producing rectangular furniture boards with a glued-on edge, in which the following are arranged one after another in the passage direction: a longitudinal sawing device (14), which divides a rectangular initial board (12) into a plurality of parallel longitudinal boards (12a, 12b, 12c, 12d), a longitudinal gluing device (31), which in each case glues a longitudinal edge onto both longitudinal sides of a longitudinal board (12a) passing through and machines the edge, a transverse sawing device (38), which divides a longitudinal board (12a) transversely with respect to its longitudinal direction into furniture boards (39) with a predetermined size, a transverse gluing device (40), which in each case glues a transverse edge onto both transverse sides of a furniture board (39) passing through and machines this edge.

Abstract: The present invention provides a wood board for use as flooring panels and a method of making the wood board. The wood board has the strength and outer surface finish of hardwood boards, increased flexibility, and a lower cost than hardwood boards. The wood board of the present invention comprises a core layer having plural veneer layers oriented such that longitudinal grain structures of adjacent layers are perpendicular with respect to each other, and each veneer having longitudinal pierced slots placed therein oriented in parallel with their respective longitudinal grain structures; and a longitudinally sliced face layer placed upon the inner core layer. This wood board and flooring panel of the present invention have high strength, high flexibility and superior surface smoothness. Further, the present invention provides lower manufacturing costs and thus lower costs for the consumer.

Abstract: A building board which is provided on the surface thereof with a concave and convex pattern, and opposite sides thereof with overlying rabbeted portions (2-1, 6-1, 6-2) and underlying rabbeted portions (3-1, 3-2, 5-1), respectively, wherein each overlying rabbeted portion (2-1, 6-1, 6-2) is constituted by one end portion of the convex portion (2, 6) of said pattern; each underlying rabbeted portion (3-1, 3-2, 5-1) is constructed to have an area bigger than the area of corresponding overlying rabbeted portion (2-1, 6-1, 6-2) bearing said convex portion and formed on the opposite side; and each of said opposite sides is provided on the rear side thereof with a linear contact surface (7-1, 7-2).

Abstract: Five processes for cutting teak wood timber so that the resulting logs have at least one straight-line grain surface and minimal surface area showing buds. Logs or thin sections thereof when aligned and glued together form boards or planks with straight-line grain surfaces.

Abstract: A blinds slat has a major portion being strips of bamboo and a minor portion being one or more pairs of wooden strips that are located at or near opposite side extremities of the slat. The resulting composite bamboo and wooden slat has exemplary resistance to warping and other deleterious effects of exposure to sun and moisture. Also disclosed is a method for producing the slats that is particularly advantageous in avoiding environmental harm, in that only small amounts of wood are used.

Abstract: The invention is a wane-free engineered wood product and the method of its manufacture. Lumber having wane along one or more edges is first milled to produce rectangular notches along each of the four edges. The notches are sized to remove all or most of the wane. The notched piece is then ripped lengthwise to produce two strips. These are rotated 180° and placed adjacently so that the notched edges face each other and form longitudinal channels. Strips of oriented strand board or a similar material are then affixed into the channels, preferably by gluing, reuniting then again into a unitary wane-free structural member.

Abstract: Five methods of cutting teak wood timber so that the resulting logs have straight-line grain surfaces and minimal surface area showing buds. Logs or sections thereof when aligned and glued together form boards with straight-line grain surfaces.

Abstract: A process for creating a distressed surface for an article of furniture, and an article of furniture incorporating a distresses surface. The process includes the steps of selecting at least one piece of material having at least one planar surface and opposed side edges, mechanically forming grooves along at least one of the opposed side edges of the piece of material, and adjoining multiple pieces of material so formed to create a surface of an article of furniture that has a distressed appearance. The article of furniture includes a surface having a distresses appearance that is adhered to a substrate to create the face of the article of furniture.

Abstract: A method of producing the floor-bridging units, which increases production rate of the floor-bridging units. First rough lumber beams are fed through a planer, which planes the lumber to the required consistent size tolerance. The planed lumber is transferred to a cut-off saw to cut the legs. The legs are transferred to a dado machine and a dado slot is cut into the lumber. The legs are transferred to a joining station to form the X member, where the dado slots are joined into a dado joint by gluing and stapling the joint. The X member is transferred to a trimming station to be trimmed. At the same time flanges are being made by cutting sheet lumber in strips and then into rectangles to form the flanges. The flanges are transferred to a nailing jig, while glue is applied to the trimmed ends of the legs of the X members. The X members with the applied glue are transferred to the nailing jig.

Abstract: Wooden tiles and a method for making the same is disclosed. The wooden tiles are sliced from a rectangular, elongate composite beam which is formed by assembling and securely adhering together a plurality of elongate wood pieces and possibly one or more non-wood products. The beam is then sliced into individual tiles having a substantially uniform tile thickness and a predetermined pattern of primarily end grain wood which is substantially consistent among all of the tiles.

Abstract: A method for producing a processed substantially continuous veneer ribbon is provided. The method comprises providing a plurality of debarked wood logs. A substantially continuous veneer ribbon is separated from each of said plurality of debarked wood logs. The substantially continuous veneer ribbons is conveyed to a plurality of storage locations. A system is provided for processing the substantially continuous veneer ribbons introducing a plurality of the substantially continuous veneer ribbons from the storage location to the continuous veneer ribbon process system. A processed continuous veneer ribbon is formed from the plurality of the substantially continuous veneer ribbons in the continuous veneer ribbon process system.

Abstract: A process for preparing bamboo timber has steps of slicing a bamboo into bamboo ribbons, combining the bamboo ribbons to form a bamboo cylinder, shaving the bamboo cylinder into bamboo foil, and removing irregular sides of the bamboo foil.

Abstract: The present invention relates to a method for forming a decorative, resilient, wood product from an engineered structural wood product. The invention includes utilizing a sheet of engineered structural wood product, cutting the sheet lengthwise into planks, stacking the planks and adhering the planks together and slicing the edge grain off the adhered planks and placing the slices side-by-side to form large areas of exposed side grain. The slices can be attached to a substrate, and the slices can be further treated to produce a decorative wood product.

Abstract: The present invention provides a wood board for use as flooring panels and a method of making the wood board. The wood board has the strength and outer surface finish of hardwood boards, increased flexibility, and a lower cost than hardwood boards. The wood board of the present invention comprises a core layer having plural veneer layers oriented such that longitudinal grain structures of adjacent layers are perpendicular with respect to each other, and each veneer having longitudinal pierced slots placed therein oriented in parallel with their respective longitudinal grain structures; and a longitudinally sliced face layer placed upon the inner core layer. This wood board and flooring panel of the present invention have high strength, high flexibility and superior surface smoothness. Further, the present invention provides lower manufacturing costs and thus lower costs for the consumer.

Abstract: The present invention is directed to a process whereby low-grade lumber, (i.e., lumber having surface defects such as knots, voids, wane, and bark pockets, and warp defects such as twist, bow, crook and sweep), is converted to higher grade lumber and panel products. The process of the present invention involves first categorizing low-grade lumber, arranging a specified number of the categorized low-grade lumber side by side in a manner which offsets the surface defects on adjacent lumber by a minimum distance, and then face-laminating the categorized low-grade lumber together to form a cant. Warp defects such as bow, twist and crook are also offset in the arrangement of the cant and are straightened through the clamping and bonding process. The cant is then re-sawn to produce new, laminated wood products of a higher grade, each new laminated wood product including portions of the original lumber.

Abstract: A wood product includes a composite substrate, such as LVL, that includes treated paper wrapped around and glued to the substrate. The paper seals both the face and the edges of the substrate. As a result, in the case of an LVL substrate, the veneer edges, which are less finished and moisture resistant than the face, are sealed.

Abstract: A method for making a wooden blind slat includes a first step of cutting a tree trunk of a length into a plurality of rectangular slices, which are properly smoothed by a dressing tool before they are randomly joined together by an adhesive to form a rectangular board. The rectangular board is sliced in the direction perpendicular to the longitudinal surfaces of the rectangular slices into a plurality of wooden blind slats, which are smoothed again before being covered with a coat. The coated blind slats are finally dried by baking.

Abstract: A method for making a beveled laminate corner on an edge piece for laminate countertop includes making a first cut into a laminate-covered edge piece at the angle of the bevel at the front edge of the edge piece. The first cut terminates below the laminate at the top of the edge piece. A second cut is made through the laminate and into the edge piece at an angle that is normal to the first cut. The second cut intersects the first cut at its upper extremity and has a predetermined depth. A rectangularly cross-sectioned laminate-covered bevel piece, having a thickness equal to said predetermined depth, is then adhesively attached to the edge piece abutting the surfaces formed by the first and second cuts.

Abstract: The invention relates to a method of sawing a log in order to provide a high yield of vertical-grained pieces of lumber. According to the invention, this is achieved by sawing from the log not only pieces of lumber which are triangular or sector-shaped in cross-section but also essentially plane-parallel boards between adjacent pairs of the pieces which are triangular or sector-shaped in cross-section.

Abstract: The subject basic method and its modifications are used to provide logs reconstituted from smaller diameter trees up to 12 inches diameter at their bases. The basic method is practiced using the following steps: 1. Cutting felled trees at cutting points into a plurality of segments which, naturally, are tapered, each segment having a length, a larger diameter end and a smaller diameter end, the length being in a range of random lengths such that the larger end diameter is in a range of 0.2 to 2.0 inches larger than the smaller end diameter, with 0.2 inch preferred; 2. selecting from the plurality of segments cut from one or more trees, a plurality of groups of segments which have smaller end diameters no more than ½ inch different; 3. joining segments from each group end-to-end to form reconstituted logs of optimum lengths for processing into wooden structural units. In one modification of the basic method, flawed portions are removed from the logs prior to cutting them into segments.

Abstract: A method of making two wood products using a single attaching or laminating step. A cut is made only partially through a first piece of wood. A second piece of wood is laminated or otherwise attached to the first piece of wood to make a composite piece of wood. The composite piece of wood is then cut to create the two wood products. The method may be used to create two wood products having substantially identical cross-sections.

Abstract: Engineered structural wood products particularly useful in critical applications such as joists, headers, and beams where longer lengths, greater widths, and higher and predictable stress ratings may be required and to a method for making the wood products. Most logs by nature are radially anisotropic, having wood of higher density and stiffness in their outer portion adjacent the bark than is found in the inner portion. The logs are machined to segregate the denser, stiffer outer wood. A first generally rectangular component is formed from the less dense inner wood. Second generally rectangular components are formed from the stiffer outer wood. Second components are adhesively bonded to at least one edge of the first component, more usually to opposite edges. The stiffer wood is thus specifically placed where it will contribute most effectively to the properties of the product.

Abstract: A technique for forming a contoured axially extending engineered moulding that has at least one axially extending exposed surface. The technique includes providing an elongated outer wood section. A substrate having at least one axially extending side is provided. The wood section is adhered to the axially extending side. The wood section is contoured uniformly in an axial direction to form the exposed surface. A preferred embodiment uses a reengineered rip saw to contour the piece of wood. It is also assumed that multiple moldings can be machined by the reengineered rip saw simultaneously. The simultaneous machining by the reengineered rip saw also permits simultaneous measurements and simultaneous cross cutting and dado cutting of the moldings.

Abstract: The resin impregnated composite wood product comprises a plurality of wood layers, with each layer having relatively thin strips of wood. The strips in each layer are arranged at an angle to the strips of wood in adjacent layers. The strips of wood of such layers are saturated with resin throughout their length, width and thickness to fill the pores and when cured to provide a strong, tough, durable, long lasting product which is economical to manufacture.

Abstract: A method of making composite strips for mouldings, frames and the like, including the steps of providing a first elongate panel of a first material and a second elongate panel of a second material, laminating the first and second panels onto one another to provide a laminated panel, making a plurality of parallel cuts or slots in the second panel, adhering a filler strip to the first and second panels in each of the cuts, and gang sawing the laminated panel into composite strips by cutting the laminated panel at each of the filler strips. The filler strips may be formed as single pieces and may be formed as a pair of pieces not joined together. A composite panel having first and second elongate panels of different materials laminated together, with a plurality of parallel cuts in the second panel, and with filler strips in the cuts and adhered to the first and second panels. Several alternative embodiments are also disclosed.

Abstract: A system for defining and making wooden panels and similar items for furniture includes the following in sequence: a first station for loading an unworked piece of defined thickness (S.sub.h) onto a second station for cutting the unworked piece lengthways into two or more strip elements of equal width (LR.sub.hi); a third station for working the leading end and the trailing end of each strip element as it moves forward so that the strip elements can then be glued together end to end in sequence to form a continuous strip of strip elements and a fourth station where the continuous strip is cut crossways into a plurality of unworked panel strips whose length (LU.sub.hij) is defined by a sum of multiples of the panels needed to make a unit required or programmed.

Abstract: A method is used to make bamboo slats which are intended for use in making a blind. The method comprises a first step in which a bamboo stem is split into a plurality strips. The bamboo strips are barked, polished, and bleached before they are adhered side by side to form a base plate. A plurality of base plates are adhered in a stack to form a rectangular bamboo block having bamboo fibers which are arranged in an interlacing manner. The bamboo block is sliced into a plurality of bamboo slat, with each having bamboo fibers which are arranged in the interlacing manner.

Abstract: An apparatus for and a method of bonding veneers without problems in manufacturing process even if logs, which causes disorder of veneers after dried are used. The veneer bonding apparatus for bonding veneers to each other comprises: a bonding face machining device for machining both end portions of a veneer to be bonded to bonding faces; a bonding agent applying device for applying bonding agent to at least one bonding face of the machined bonding faces; an adjusting device for adjusting a front end bonding face of a succeeding veneer to a rear end bonding face of a preceding veneer such that a face side of the preceding veneer with the applied bonding agent and a backside of the succeeding veneer with the applied bonding agent are flush with each other; and a pressurizing device for pressurizing the adjusted bonding faces to each other.

Abstract: A method for making hardwood or decorative plywood. The plywood includes a number plies including a back veneer, a face veneer, and a number of core and center plies. The method forms subunits of plies and stacks the discrete formed subunits to form a unit. The unit is processed to forms discrete hardwood panels. Subunits having different sets of plies are formed. The subunits are formed by sequencing the order of placement of the plies so that the face and back veneers do not touch the conveyor. This process enables line assembly of hardwood plywood. Without this sequencing, at least the back veneers would touch the conveyor subjecting the panel to aesthetic damage due to the nature of the outer veneers. This process also significantly reduced the labor necessary for forming the panels because numerous subunits can be formed simultaneously.

Abstract: A method of making two wood products using a single attaching or laminating step. A cut is made only partially through a first piece of wood. A second piece of wood is laminated or otherwise attached to the first piece of wood to make a composite piece of wood. The composite piece of wood is then cut to create the two wood products. The method may be used to create two wood products having substantially identical cross-sections.

Abstract: A two-ply or even-ply veneer laminate panel created by the steps of: pre-flexing a substrate veneer ply sufficiently to substantially break the grains of the substrate ply, and bonding the substrate ply to a face veneer ply. Preferably, the substrate ply is pre-flexed in a direction parallel to the direction that the grains of the substrate ply run. And preferably, the grains of the face ply are oriented in a substantially perpendicular direction to the grains of the substrate ply.

Abstract: A fabricated gas turbine engine component and method of manufacturing. In one embodiment the component having a structural member with a cover member metalurgically bonded thereto. The bonding of the cover member being controlled by an apparatus that sequentially applies a substantially non-unifrom bonding load across the components radius of curvature. The patterns utilized in the casting process are formed in one embodiment to a precision preformed geometry by a closed die forming operation.

Abstract: A device for consolidating compositions contained in partially filled dual chamber dispensing cartridges includes a body having a pair of passages, and first and second couplers for connecting the body to first and second dual chamber dispensing cartridges. Once the device is connected to two cartridges, an applicator is connected to one of the cartridges and is used to expel any remaining compositions in such cartridge to chambers of the other cartridge. The contents of several partially empty cartridges can be consolidated in this manner so that a subsequent dispensing operation need not be interrupted to replace cartridges.

Abstract: The present invention relates to a pressure-formed bamboo sheets or bars composed of bamboo materials having a reduced variation in fiber density. A bamboo is split in the peripheral direction into a plurality of long bamboo slices, then the long bamboo slices are subjected to heat mothproofing. The heat-mothproofed bamboo slices are separated under pressure into a plurality of extra-fine bamboo slivers and are coated with resin until one complete bamboo sheet or bar is obtained.

Abstract: A land clearing apparatus comprises a brush saw which is removably attachable to a brush rake which is in turn removably attachable to a vehicle such as a front end loader or a bulldozer. The brush saw comprises a wedge shaped blade with a clamping assembly mounted on a rear end thereof and extending thereabove. The clamping assembly includes opposed clamping members adapted to engage portions of the brush rake from opposite directions for removably securing the brush saw to the brush rake.

Abstract: The present invention relates to a corrugated component (10) of wood-like material. The component consists of at least three layers of wooden material sheets (1,2) which are joined together with the aid of a bonding agent. At least one (1) of said layers has it grains running at an angle to the other layers (2). The undulations (9) are created before the bonding agent hardens in order to permit the layers of the wood-like material to move relatively to each other in order to compensate for the differing bending radii of the individual layers.

Abstract: A method of fabrication with the formation of a receiving panel which defines a plurality of spaced-apart parallel plows extending longitudinally. The panel has an open surface along which the plows are exposed and an opposing surface from which the plows are not accessible. The plows may be formed by adhering substrates to a separate veneer layer to define the plows between the substrates. It is preferable that the veneer layer be formed of wood, but the substrates can be formed of a less expensive material, such as composite material. Once the receiving panel has been fabricated, it is bowed to form an arc about an axis parallel to the plows. This can be done by passing the panel, carried by a belt, between two rollers that are configured to define between them a profile corresponding to the arc of the panel. While the panel is in this bowed condition, strips, made of wood, are inserted in the plows. The strips can be formed by opposing laminations that are not adhered to each other.

Abstract: A method of fabricating bamboo slats for bamboo blinds, including the steps of: i) cutting bamboo wood into bamboo strips subject to a predetermined length; ii) removing the skin and joints from both sides of the bamboo strips, then boiling the bamboo strips in a diluted hydrogen peroxide solution to prevent decay, and then polishing the bamboo strips after drying; iii) bonding the bamboo strips into a rectangular bamboo plate, then polishing the bamboo plate thus obtained; iv) splitting the polished bamboo plate thus obtained into raw bamboo slats subject to a predetermined thickness, then polishing the bamboo slats, and then coating the bamboo slats with a base coating and then with a face coating; v) punching two punch holes on the bamboo slats thus obtained for the insertion of a pull cord so that the finished bamboo slats thus obtained can be assembled with a pull cord into a bamboo blind.

Abstract: The invention relates to a joint arrangement in connection with the manufacture of a wood element blank, especially a wood board blank or a wood beam blank, in which arrangement the wood element blank is arranged to be formed of several blank battens (1-4) that are arranged to be interconnected with an adhesive, whereupon each blank batten (1-4) is formed to have at least partly substantially triangular cross section, so that it may rest on at least four adjacent blank battens, and that the apex of the triangular part of each blank batten (1-4) remains inside the wood element blank. In order to improve the yield and the strength properties, each blank batten (1-4) is formed with substantially radial cleavings, so that the pith of the wood remains at the apex of the triangular part of the blank batten.

Abstract: A casket comprises an outer structure, a tray and an insert. The tray is formed of corrugated fiberboard having a corrugation extending in a first direction, while the insert is formed of corrugated fiberboard having a corrugation extending in a second direction perpendicular to the first direction. The casket has either a full lid or a split lid, and the lid is either flat or optionally curved. The structural integrity of the casket is improved by provision of side wraps, end wraps and pads inserted between each end wall and its respective end wrap. Methods of constructing the various alternative casket lids are also disclosed. Components are made of wood, corrugated fiberboard and foam.

Abstract: A beam is composed of a tree trunk which has been star-mortised into right triangular sections which are joined together in pairs to produce rectanguloid laminae that are, in turn, glued together to form a beam in which growth rings of the tree trunk are oriented vertically and in the longitudinal direction of the beam. Due to the resulting more favorable growth ring position, the beam according to the invention can be much more highly statically loaded than a conventional beam, and moreover, can be produced at much lower costs than known glued wood truss beams formed of solid, one-piece rectanguloid tree trunk sections.

Abstract: The present invention is an improved loose tenon joint with multiple arculate mortise surfaces and similarly configured loose tenon member for woodworking applications. A jig is provided arranged to be secured to a workpiece where the jig axially guides a drill bit for boring a series of adjoining holes forming a mortise. The first jig embodiment manipulates a slidable guide bar maintaining longitudinally spaced drill guide holes and two index holes. A hand held drill is used to bore a series of holes (fixtured by the drill guide holes) into the workpiece. A second series of holes are bored (completing the mortise) after the drill guide is translated and secured to the second index hole. A second embodiment is provided including a stationary jig body arranged to be secured to a workpiece. An elongated opening in the jig body supports a drill guide with longitudinally spaced drill guide holes. A hand held drill is used to bore a series of holes (fixtured by the drill guide holes) into the workpiece.

Abstract: A process for cutting out decorative, artistic designs, and the three-dimensioned decorative and artistic products produced thereby which are incorporatable into articles of manufacture. The process creates relief designs by angle cutting, at predetermined and variable cut-angles and predetermined and variable cut-widths. The decorative cut-out piece, cut from a base piece, is one-directionally removable and one-directionally insertable into the aperture created when the piece is cut from the base piece. The cut-out piece inserts into the corresponding aperture a distance which is determined by a combination of cut-angle and cut-width. The maximum cut-angle and the maximum cut-width is limited by the thickness of the base piece. The cut width is substantially equal to the saw blade cut width or the width of the cut produced by any appropiate cutting device.

Abstract: A method of making a book box which comprises utilizing a solid block of wood which is either of a square or rectangular shape. In the side edge of the solid block there is cut a plurality of closely spaced parallel grooves causing the side edge to resemble the leaves of a book when the book is closed. Within the top surface of the block of wood there is formed an enlarged concavity with the bottom surface of the block of wood being adhesively secured onto the inside surface of a back flap of a book cover. The spine of the book cover is adhesively secured to the side edge. The front flap of the book cover is capable of pivoting between a closed and an open position, and when in the closed position covers the concavity, and in the open position provides access into the concavity.

Abstract: A tree cutting device for attachment to a prime mover, such as a bulldozer is provided. The attachment includes a v-shaped blade and a mounting means for attaching the v-shaped blade to the prime mover. The v-shaped blade comprises a pair of sheer blades joined at a forward convergence point to form the cutting edge of the v-shaped blade and a pair of concave shaped blades attached to the sheer blades so as to form an integral unit. The concave shaped blades in conjunction with the v-shape of the apparatus provide a means of controlling and directing the fall of trees being severed by the tree cutting device.

Abstract: Laminated lumber made of a plurality of prismatic wood arranged in the transverse direction and bonded together by an adhesive, in which inside knots are present in the transverse of at least a part of inside pieces of the prismatic wood composing the laminated lumber, and knots are not present at least on the surface of the laminated lumber. As a result, it is possible to obtain high-class laminated lumber without knots on three or four sides by using natural wood with knots with a high product yield.In the method of making the laminated lumber, a plurality of prismatic wood are arranged in the transverse direction, outside pieces of the prismatic wood have no knots, inside pieces of the prismatic wood which have inside knots lengthwise are rotated such that the knots of the inside pieces of the prismatic wood are present in the transverse direction. By arranging the prismatic wood in this way, there is substantially no knots on the four sides of the laminated lumber.

Abstract: A wooden tube made up of tubular layers of wood veneer and the method of making it in which the various tubular layers are made from flat sheets of wood veneer having the grain in one layer extending longitudinally and the grain in an adjacent layer extending circumferentially of the tube so that the grain in adjacent layers extend transversely of each other with all joints extending in the direction of the wood grain being edge to edge butt joints and all joints extending transversely to the wood grain being interlocking finger joints and with adjoining tubular layers being bonded to each other to form a unitary tube.

Abstract: A method of resawing elongated radially sawn segments of timber so that bsawn boards are produced. Said wedges are sawn with the desired angle between the radial faces and are resawn so that the growth rings of the tree are basically parallel to the broad backsawn faces. The flared radial edges of the boards indicate the growth ring orientation and therefore the cupping tendency and the direction of bow. This enables a greater degree of consistency in the manufacturing process over conventional methods. Said backsawn boards can be used individually as conventional boards with the mentioned advantages or can be laminated together to make a range of laminates that balance or use the bowing and cupping tendency of backsawn timber.