Abstract: A method of preparing a multilayered wood panel from thin boards is discld. The thin boards are produced by from square timber by a knife cut.

Abstract: The present invention concerns a method for cutting squared timber into a number of thin boards. Individual boards 32 are cut off by a blade 30 from the squared timber in each of the successive cutting machines 14a-g, essentially in longitudinal direction of the squared timber. The thickness of the squared timber 26 is selected in such a way that, once an integral number of boards having a predetermined thickness are cut off, a residual board remains which is reduced to the same thickness d as the boards 32 by shaving. The shaving preferably takes place by placing a planer 18 after the last cutting machine 14g. The installation 10 is equipped with a material feed 12 and a conveying system 20 for removing the cut boards, the cutting machines and the planer are also connected to one another by conveying devices 16, 24.

Abstract: A device for cutting thin boards from cants includes a blade set in the device which is fastened to a blade holder which is mounted on a blade support. The blade support can be installed as an interchangeable component in a cutting table and clamped in the table in an exact position. A transfer apparatus, constructed as a rotating table, is alignable with the cutting device. By means of the transfer apparatus, the blade support can be removed from cutting device. The transfer apparatus can be movable or in a fixed position. Receiving surfaces for blade supports can be integrated into the transfer apparatus.

Abstract: A method of preparing a multilayered wood panel from thin boards is discld. The thin boards are produced by from square timber by a knife cut.

Abstract: An apparatus for severing thin boards from squared timber includes a guide urface upon which a squared timber is conveyed and pressed against a cutting edge of a blade, as well as a counter pressing edge. The adjustment of the distance between the guide surface and a plane parallel thereto which extends through the blade cutting edge (i.e., the thickness of the thin board to be cut) is effected by relative adjustment of the blade cutting edge to the guide surface in an inclined plane which forms an acute adjustment angle .alpha. with a line normal to the guide surface. Because of the relative adjustment of the blade cutting edge to the guide surface along the angle .alpha., when a different board thickness is desired, the distance between the blade cutting edge and the counter pressing edge in the cutting direction is automatically adapted. In a preferred embodiment of the apparatus, the width of an exit guide channel for the severed thin boards can also be simultaneously set to the desired board thickness.

Abstract: A multi-ply solid wood structure, such as a beam, a board or a truss, and a ethod of manufacturing such wood structures are disclosed. The wood structure comprises wood lamellae that are joined together, wherein the wood lamellae are produced by a chipless separation from squared timber using a blade or a knife, and wherein the lamellae have a knife side that was adjacent to the knife during the process of separation and an opposite side that is remote from the knife side. In one embodiment, the wood lamellae are arranged in the multi-ply solid wood structure such that, when viewed from a center plane of the wood structure extending generally in parallel to the external surfaces of the lamellae of the wood structure, the opposite side of each wood lamellae is directed toward the two external surfaces of the wood structure.

Abstract: A method wherein a length of squared timber can be completely separated i a number of thin boards having a predetermined thickness without an excessively thin or excessively thick unusable residual board being left over is disclosed. The method includes measuring the thickness of the residual squared timber after one or more thin boards have been separated, and feeding the thickness measurement back to the cutting apparatus to adjust the setting of the apparatus. The method is useful on an apparatus that separates a length of squared timber into thin boards without producing chips and without timber loss, and wherein the predetermined board thickness cannot be set exactly because of variations in the property parameters of the wood.

Abstract: Apparatus for producing machined timber from round timber logs comprises a eed device for receiving a log and feeding it longitudinally through at least one machining device whereby the middle region of the log is machined into squared timber. The wood sections lying outside the squared timber, on two mutually opposite sides of the round timber log, are separated into boards or planks during the feed movement of the log in its longitudinal direction, in a plurality of successive cutting operations. The machining device has a plurality of cutters staggered one behind the other, which cutters are combined into groups arranged in a frame which can be driven with an oscillating movement. A presser strip is associated with each cutter, and before each presser strip in the machining direction there is arranged a guide strip which contacts the outer surface of the log being machined.

Abstract: A method and apparatus for processing round logs in which substantially the entire log is utilized to produce a relatively high value wood stock. The outer area of the log is peeled in sheets to square the central area for the formation of planks, beams, boards or the like while the peeled sheets may be dried, graded, cut to size and joined together and glued to form strips of any desired length and width which, in turn, may be glued in layers to form panels or other high value components. A plurality of powered, adjustable peeling knives are arranged in opposed sets to machine the log as it is caused to pass thereby on a conveyor. In one form of the invention the knives are driven to undergo a circular oscillatory motion while a second embodiment discloses a knife drive in which the knives are guided in a vibratory movement. A third form of drive permits a drawcut in that the peeling knives are driven in a longitudinal direction relative to their cutting edges.