Abstract: In production of a decorative article from piece board of a decorative plywood, a decorative sheet for the decorative plywood is formed by heat pressing a powdery sheet on a material sheet in order to simplify coating process.

Abstract: A method for producing a simulated framed solid wood panel comprises providing a one-piece panel element and covering at least one major surface of the panel element with a plurality of veneer elements. Each veneer element has a visible grain pattern and at least some of the veneer elements are orientated with their grain patterns at an angle to the grain patterns of immediately adjacent veneer elements. The veneer elements orientated as above are intimately bonded to the said surface to form the panel member, whereby the visible lines between adjacent bonded veneer elements simulate the appearance of joints between solid wood components.

Abstract: Methods and apparatus for forming, shaping and otherwise milling workpieces, especially compound curved laminated wood workpieces for use as handrails, stringers, furniture and the like.

Abstract: A method of manufacturing hollow furniture parts, such as table legs comprises conveying wooden laminae to a work station to form the furniture parts. The number of wooden laminae conveyed to a modeling unit provided with polygonally, preferably squarely arranged guide surfaces corresponds to the number of said guide surfaces. The wooden laminae slide across the guide surfaces while abutting said surfaces. The longitudinal edges of the individual lamina are undercut so that the laminae form a prismatic, hollow tube subsequent to being assembled. The side surfaces of said tube are mitred along the longitudinal edges of the tube, and the wooden laminae are glued together in pairs by means of a fast-drying glue applied shortly before the laminae reach the modeling unit. Support and/or end blocks are then optionally inserted in and glued to the inside of the prismatic tube. Finally the tube is cut into small pieces corresponding to the furniture parts.

Abstract: The present invention refers to a process for the manufacture of parquet flooring blocks. The process of the present invention specifically consists in obtaining blocks having any geometrical configuration by stamping a board comprised of a uniform agglomerate base, such as sawdust, vegetal fibers and the like, on which board is disposed a decorative sheet protected by a plastified layer.

Abstract: Process for producing a veneer workpiece in the form of a flat plate or the like with a preferably, at least partly wooden base layer, optionally in the form of a base veneer constituted by several individual layers, a face veneer having at least one wooden face veneer layer and a cutout passing through the base layer and the face veneer, in which the base layer and the face veneer are preferably glued together by means of a synthetic resin adhesive, which produces the cutout passing through the base layer and the face veneer and finally the circumferential wall or walls thereof are covered with face veneer material, characterized in that the gluing of the base layer and the face veneer to form a solid workpiece, the formation of the cutout or cutouts and the covering of the circumferential wall thereof with the face veneer in a single pressure punching process, the face veneer layer being pressed through from the surface of the veneer workpiece into the cutout or cutouts, while covering the circumferential w

Abstract: A combined veneer trimmer and adhesive spreader machine has a bed for supporting packs of veneers, over which bed moves a lower reciprocable conveyor belt which can be driven in synchronism with an upper reciprocable conveyor belt carried on a press member displaceable vertically and carried on a cross beam. Opposite longitudinal edges of the veneers in a stack held between the upper and lower reciprocable conveyor belts are trimmed by respective opposite blades each carried by a respective blade carrier which can be displaced along an inclined path under the action of a respective double acting fluid pressure cylinder so that the stack of veneers is cut whilst in horizontal motion without warping thereof due to the firm grip applied by the upper and lower reciprocable conveyor belts and the fact that the path of the cutter blades is inclined.

Abstract: A wooden tile which is preferably used for floor covering is formed by a number of individual members which are bonded together. The wooden tile is made by knife cutting a sheet of wood from a substantially stressless piece of timber and then cutting the individual members from the wooden sheet. Adhesive such as ureaformaldehyde is applied to the edges of the members to bond them together. Alternatively, the individual members are adhesively bonded onto a mesh and some adhesive seeps between the edges of the members. The tile so formed is flexible, durable and economic to manufacture.

Abstract: A method for producing sheets of precomposed wood, with differentiated porosities, designed to imitate rotary-cut veneers and/or sheared sheets of natural wood. According to the method claimed herein, sheets of wood with differentiated porosities are obtained by cutting or shearing a block of precomposed wood, made up of sheets of natural wood having a first degree of porosity disposed between sheets of precomposed wood having a different degree of porosity, so as to imitate the typical graining and fibre structure of natural wood.

Abstract: A method of producing a laminated plate comprises the steps of (a) preparing a pair of blocks in each of which a plurality of plate elements overlap each other in an inclined position such that the plate elements have one end portions appearing stepwise at predetermined intervals on one surface of the block and the other end portions appearing flat on the other surface of the block, and (b) interlocking and bonding the two blocks to each other such that the one end portions of the plate elements in one of the blocks and the one end portions of the plate elements in the other block oppose each other in a predetermined positional relationship, whereby a laminated plate opposite major surfaces of which are flat is produced.

Abstract: This invention relates to automatic lattice fabrication apparatus for automatically forming sections of lattice from strips of wood of a predetermined length and width. The apparatus includes an elongated horizontal conveyor that conveys lattice strips from a lay-up section through an automatic adhesive dispenser, under an automatic stapling bridge where the lattice is stapled, through rip saws that trim the sides of the lattice and, when desired, cut the lattice in half, and through an automatic cross-cut saw mechanism that periodically stops the conveyor, lowers a saw and cuts off a section of lattice when it reaches a predetermined length, and then lifts the saw out of the way and resumes conveyor movement.

Abstract: A unitary sheet of plywood comprising at least one layer of plywood veneer expanded in a direction perpendicular to the grain and at least one layer of plywood veneer bonded to said expanded layer; the method of forming such plywood comprising forming a first layer or layers of plywood veneer expanded in a direction perpendicular to the grain and bonding at least one layer of plywood veneer to said expanded layers, the method of forming expanded veneer comprising incising a strip of green veneer with at least one multi-bladed nip roller to cause an expansion thereof in a direction perpendicular to the grain and drying said incised strip, and apparatus for expanding a sheet of green veneer comprising at least one multi-bladed roller for incising a sheet of green veneer to cause expansion thereof in a direction perpendicular to the grain and means for drying said incised veneer sheet.

Abstract: The invention is concerned with a method for the manufacture of a laminated beam out of sheets of veneer as a continous process. According to the method, the sheets of veneer are stacked, in consideration of the sequence of stacking, as glued or non-glued as a continuous setting consisting of a number of layers corresponding to the desired thickness of the beam on a suitable transfer base. This setting is passed on the base into a preliminary press, pressed in the preliminary press, as well as passed into a hot press (2) for the purpose of hardening the glue. In order to permit a more efficient operation of the hot press, in the method a continuous gap (3) free of adhesive and having a width equal to the width of the whole setting is produced in the setting between at least two desired layers of veneer, along which said gap the beam blank is divided (4), after the stage of preliminary pressing, into separate blank lines. The blank lines are then passed into hot-press gaps of their own.

Abstract: A compound lumber slab is formed from several pieces of lumber which are edge-glued together using finger joints. The fingers have the shape in cross section of truncated triangles. These fingers, and their mating grooves, are alternately disposed along the edges of the lumber so that a saw cutting a panel from the slab will cut through the flat top of a truncated triangle, thereby producing glue lines parallel to the panel edges on the resulting panel surfaces. The truncated triangles are shaped and dimensioned to optimize the structural integrity of the resulting panels. The mating fingers and grooves may have a noninterfering fit to produce closed glue lines on the finished panel surfaces.

Abstract: This invention relates to automatic lattice fabrication apparatus for automatically forming sections of lattice from strips of wood of a predetermined length and width. The apparatus includes an elongated horizontal conveyor that conveys lattice strips from a lay-up section through an automatic adhesive dispenser, under an automatic stapling bridge where the lattice is stapled, through rip saws that trim the sides of the lattice and, when desired, cut the lattice in half, and through an automatic cross-cut saw mechanism that periodically stops the conveyor, lowers a saw and cuts off a section of lattice when it reaches a predetermined length, and then lifts the saw out of the way and resumes conveyor movement.

Abstract: A drum with a body composed of solid wood blocks glued together. The blocks form a cylinder which constitutes the drum body with each block extending the entire thickness of the cylinder wall. The blocks lie in circular layers with each layer having a staggered orientation relative to its adjacent layers. Dowels pass through the blocks to provide greater support to the body. The upper and lower edges of the cylinder have a recessed configuration relative to the body's outer surface to provide a floating drum head. To produce the drum body, each block in a layer has its ends tapered toward the middle of the block. Where each layer includes 16 blocks, the end faces of a block have an angle of 22.5.degree. relative to each other. Gluing the blocks together forms a long cylinder having, however, rough external and internal surfaces. Milling on both the outside and the inside of the cylinder provides smooth surfaces of a pleasing appearance.

Abstract: A novel decorative panel and method of manufacture in which a wood panel is grooved, the groove filled by synthetic inlay material which is permitted to cure to the approximate hardness of the wood, the entire surface of the panel is thereafter abraded to create a simulated wood grain in the inlay material, and the inlay material thereafter permitted to cure to a hardness greater than that of the wood so that a subsequent polishing operation will remove the scratches from the wood to display the natural wood grain without removing the wood grain simulating scratches from the inlay material.

Abstract: A process for forming a cylindrically shaped hole in a laminated wooden beam comprised of two or more individual wooden members. Prior to laminating the individual wooden members, the location of the cylindrically shaped hole is established. A pilot bore is then made in the wooden member established by the desired location of the cylindrically shaped hole and the individual wooden members are laminated such that the pilot bore is located proximate the interface of adjacent individual wooden members at the location determined by the to-be-formed cylindrically shaped hole. The hole is then formed by guiding a drill bit in a path established by the pilot bore.

Abstract: A structure is formed with a beam, floor and ceiling joists, studs, top and bottom plates, rafters and headers consisting of composite wooden members. The composite wood members include aligned pairs of elongated pieces, each piece including a narrow face, a wide face and a pair of radial faces. The faces extend longitudinally in relation to the piece. The pieces are bonded together at their narrow faces between the wide faces. The transverse cross-sectional geometry of each piece comprises a trapezoid with an apex side at the narrow face, a base side at the wide face and a pair of radial sides; each radial side being associated with a respective radial face. The members may be formed with pairs of tapered pieces oriented in opposite relation with respect to each other.

Abstract: Hollow wind turbine blades and the like comprising abutting blade sections, with nose forming strips and converging walls forming a tail section connecting with the ends of the nose forming strips, and a method of fabricating them comprising machining the facial end walls of the abutting blade sections to provide a precise alignment thereof providing a flush joint when the sections are butted together, adhesively bonding the blade sections in abutting relation and permitting the bond to cure, cutting communicating splice receiving slots in the abutting nose forming strips, and inserting adhesively bonding splice inserts which fit the slots in place in the slots.

Abstract: A wooden wind turbine blade is formed by laminating wood veneer in a compression mold having the exact curvature needed for one side of the blade, following which the other side of the blade is ground flat along its length but twisted with respect to the blade axis.

Abstract: A continuous length of flexible, reel wood veneer produced by a method according to which the veneer leaves are bonded to a non-woven material strip such as bonded viscose rayon which is then severed between the veneer leaves to form foil backed leaves, which leaves are cut with male and female finger ends enabling said leaves to be mated end to end and bonded together into a continuous length, and a plastics or plastics composite foil such as PVC/non-woven material composite foil is applied as secondary backing to the non-woven material-backed veneer, which preferably has a total thickness of about 0.40 mm, including a real wood veneer thickness of 0.15 mm.

Abstract: Disclosed is a laminated wood corner construction for furniture and a method for preparing such a construction. The corner construction comprises two laminated wood legs bent at 90.degree. angles, bisected on a 45.degree. diagonal throughout their length and glued together and a laminated wood connecting piece bent at a 90.degree. angle, bisected on a 45.degree. diagonal throughout its length and glued between the upper bent portions of the legs. The angle between the upper bent portions of the two laminated wood legs is a right angle. A method for preparing a corner construction comprising the following steps: (a) taking thin wood laminae, applying glue and assembling the laminae with a right angle bend; (b) clamping the laminae in a mold while the glue hardens; (c) cutting the molded sheets into strips; (d) bisecting each strip on a 45.degree.

Abstract: This invention relates to a method of manufacturing laminated material. Particularly to laminated materials for use in the construction of flame tubes of gas turbine engines.The laminated material is manufactured from three sheets, a central sheet, a first sheet, and a second sheet. The central sheet is perforated with an arrangement of equi-spaced apertures. The central sheet with apertures is then secured to the first sheet. A number of channels are machined through the central sheet to leave the first sheet and an arrangement of equi-spaced lands secured thereto. The first sheet is perforated with an arrangement of equi-spaced apertures to form air entry holes. The second sheet is then secured to the assembly to form a laminated material comprising a first sheet with apertures and second sheet separated by an arrangement of equi-spaced lands machined from central sheet.

Abstract: A method of manufacture of a tapered wood beam, such as an I-beam, is described. With such method an I-beam of uniform width including a web member of uniform width and a pair of first flange members attached to the opposite sides thereof, is first produced and then cut into two portions by sawing the web member of such beam along a diagonal line to form two tapered web members each attached at one side to a first flange member. The resulting I-beam portions are then assembled by releasably fastening, such as clamping, the first flange members together in back to back relationship so that the sawn edges of the tapered web members are facing outwardly and parallel to form an assembly of substantially uniform width.