Abstract: A chipping canter is provided for producing four-sided cants from curved logs. It allows the slabbing heads thereof to follow the natural curvature of the logs for obtaining cants having a maximum cross-sectional area and length. Each log is flatly disposed on a log deck and is scanned at the entry for obtaining information about the curvature and dimensions thereof, and then calculating the position of the log deck and of the centering rollers. As the log is forwarded along the path in the chipping canter, the log is always properly aligned with respect to the slabbing heads.

Abstract: An apparatus for supporting and guiding a router in cutting work-pieces to form an interlocking joint comprises a base support member to which two work-pieces are mounted, at least one being in a horizontal plane. A template is also mounted to the base support member above the horizontal positioned work piece. The template is adjustably connectable to the base support member and vertical and horizontal work-piece clamping assemblies are provided with a movable clamping device so that clamping pressure is applied adjacent to each work-piece in holding the work-pieces on the base support member for cutting.

Abstract: A log processing method and apparatus are described in which the log is moved laterally through a light scanner by a pair of charger arms to determine the configuration of the log and the best cutting pattern solution for such log by a computer from the scan data. The log is skewed by adjusting the length and angular position of the charger arms to align the central axis of the log with the center of the cutting pattern solution. Then the log is swing by pivoting the charger arms into a transfer position where the log is transferred to an end dogging log carriage. After transfer, the log is rotationally repositioned into the desired cutting position by rotating it about a selected chuck of a plurality of chucks on one end dog with a driven dog blade on the other end dog which is aligned with the centerline of the cutting solution. After repositioning the log is clamped against further rotation by extending additional end dog chucks into engagement with the log.

Abstract: A system used in combination with a cant sawing or cutting unit, the function of which is to guide two faced-cants through the cut along the line of their natural curvature. The system comprises, at the infeed end of the unit, rollers for clamping the opposite planar faces of the cant, thus providing it with a pivotal point, and also includes means for causing an angular displacement of the forwardly moving cant, from said pivotal point and relative to the sawing or cutting elements, thereby allowing the elements to cut along the natural curvature of the cant.

Abstract: A ring flaker has a housing with a back opening so that a blade ring mounted to an arbor assembly can be slid backwards away from the housing to allow the blade ring to be replaced without removing the housing. This arrangement reduces the down time generally necessary to replace a blade ring in a ring flaker. The back opening in the housing is of sufficient size to permit the blade ring to be axially withdrawn. The arbor assembly has a slide arrangement on the ring flaker carriage and there is provision to use a hydraulic jack to move the arbor assembly on the slide arrangement for a distance sufficient for the blade ring to be disconnected for removal and replacement.

Abstract: A method for the feeding of long pieces of wood into a disc chipper against a disc (3) equipped with blades in such a way that the piece of wood encounters the bladed disc at a sharp input angle, and a disc chipper. The sharp input angle is achieved by combining with the sharp inclination (.perspectiveto.) of the feeder chute (5) a sharp level slanting angle, whereupon the inclination of feeder chute (5) will be sufficient to feed wood against the blade disc.

Abstract: A method and apparatus for setting the knife projection of regrindable, strip-shaped cutting tools which are each screwed releasably to a knife carrier (8) and which are releasably arranged together with the carrier, in an at least approximately radial direction, in the rotary-drivable disk (1) of a disk-type cutter.

Abstract: A counter blade is disclosed for use in a chipping machine which comprises a chipper disc rotatably mounted in the chipper frame by means of a shaft supporting the disc. The counter blade is attached to the chipper frame essentially at the intersection of a blade mounted in the chipper disc and the log to be chipped, in such manner that, on the side opposite to the chipping blade, the counter blade rests against the log to be chipped. The counter blade consists of a first and a second blade part placed at an obtuse angle relative to each other. According to the present invention, the counter blade consists of two essentially elongated elements having an arris forming the cutting edge of the counter blade at least on one of its longitudinal sides. The end faces of the counter blade elements are so formed as to permit connection to an adjacent counter blade element so that two counter blades form a continuous cutting edge of the counter blade.

Abstract: A mechanized disc flaker for producing curled wood flakes having a rotatable disc plate, and one or more cutting knives mounted to the disc plate so as to provide for a slight "rake angle" defined in accordance with the invention as the angle made between the tool face and a plane perpendicular to the direction of tool travel. In a preferred embodiment, the apparatus includes rotatable and removable knife holders which permit the rake angle and the "cutting angle", defined in accordance with the invention as being the angle the cutting edge of the knife makes with the grain of the wood, to be modified to yield curled wood shavings having different geometries and characteristics. The preferred method of practicing the apparatus involves using a work piece having a certain moisture content which is directed against the work surface of the disc flaker using appropriate pressure all to provide for wood curls of desirable characteristics.

Abstract: A surface levelling device for levelling surfaces such as a wooden floor, the device including a rotatable cutting head (130) which is mounted in a movable framework (4) by means of independently controlled screw devices (84, 86). The screw devices are controlled by control circuits (130, 132) which are responsive to a sweeping laser beam (222) which rotates in a reference plane. The control circuits maintain the cutting head (130) parallel to the reference plane and at a predetermined distance therefrom regardless of movements of the framework (4) over the floor.

Abstract: Method and chipping device for cutting chips (10) from elongated pieces of wood (5) in a manner that the wood to be chipped is fed into a rotating cylinder (1) and chips are cut of the side of the piece of wood by ranges of blades formed by several blades (7) inside the cylinder surface. The wood to be chipped (5) is directed to the cylinder in a manner that the angle between the pieces of wood (5) and the ranges of blades is acute. Each piece of wood to be chipped is in contact with two or more blades (7) in different range of blades during the cutting.

Abstract: A device suitable for the continuous feeding of wood pieces of approximately the same length into flaking machines comprises a feed trough opening into the flaking machine, behind which there is arranged a loading magazine whose cross section agrees with the feed trough. The lengths of wood are shaped into compact piles, which are then advanced cyclically into the flaking machine by means of a pushing plate. In order to be able to bring the pushing plate back over the log pile already prepared for further processing inside the loading magazine, the pushing plate is able to be slewed upon a support that can be moved parallel to the floor of the device, over both the feed trough and the loading magazine. Control members attached to the pushing plate interact for short intervals with stationary control paths at the beginning and end of the return trip of the pushing plate to cause the plate to tip either into its withdrawal position or into its pushing position.

Abstract: The anvil rotor on a wood chip slicing machine is connected to its drive shaft via shear pins which extend into the hub of the rotor from a coupling which is mounted on the shaft. The coupling provides bearings for rotation of the rotor hub thereon when the shear pins are sheared as a consequence of an overload or load shock condition. The overload protection mechanism is applicable to other machines.

Abstract: A drum-type wood chipper having a chipper drum with knives mounted in openings with the drum wall. A chip basket is mounted within the drum behind each knife opening. The chipper knife is spaced from the drum wall at both the leading and trailing edges of the knife to define chip ingress and egress openings for the chip box. Cut chips pass into the chip box as the leading edge of the knife chips the infeed material; and the chips are carried by the box for subsequent discharge through the egress opening into a discharge chute.

Abstract: A process for the edge-planing of the longitudinal and frontal edges of workpiece plates. A workpiece plate is advanced to a plate saw and at least one longitudinal edge is planed. The workpiece plate is then rotated and at least one frontal edge is planed by the plate saw. The workpiece plate is then rotated, aligned, and advanced toward the plate saw for sectioning.

Abstract: A combined saw and chipper head comprises a frustoconical body having a circular saw blade mounted on smaller face. A plurality of straight-edged knives are mounted on truncated face of body with corner of each knife positioned in a gullet between a pair of teeth.

Abstract: A cutter assembly for forming a raised wooden panel having secured together a saw blade and a winged cutter body. The blade has a substantially greater number of teeth than the number of cutter wings, whereby a greater number of chip loads can be removed at the raised portion of the panel per revolution of the assembly than at the portion formed by the wings. The assembly forms a smooth cut.

Abstract: The invention relates to a machine for surface and thickness working of wood workpieces of any dimensions, in particular short and thin workpieces without rigid clamping of the workpiece, consisting of a machine housing, a movable working table, a two-part baseplate with circular cutout into which a face of a milling head provided with fixed and exchangeable cutting edges is inserted. In the head, there is a guide insert. An upper guide strip is disposed in exactly the same plane as the cutting edge apex on the milling head and also in the same plane as a stationary portion of the baseplate. At least two working spindles, set at predetermined angles, are provided. The workpiece slides on the two-part baseplate guided by two flank guide rails and an upper guide strip forming together a movement channel for the workpiece.

Abstract: An improved wood patch, in combination with a slot formed in a blemished wooden surface, and apparatus and method of manufacture thereof. The improved wood patch has, where the wooden surface to be repaired is horizontal, three faces: a flat horizontal exterior face, a flat vertical interior face, and an angled arcuate interior face. The patch has both a larger vertical radius of curvature and a larger angle between the flat vertical interior face and the angled arcuate interior face than the slot. Apparatus for manufacture includes a router utilizing a double router bit having a straight cutting edge oriented perpendicular to the axis of rotation of the bit and an angled cutting edge oriented at an angle to the straight cutting edge.

Abstract: The four sides of a batten are thicknessed and surfaced using a machine unit with a succession of tools driven by one motor and rotating horizontally throughout: a bottom planing tool incorporating a first trimming cutter at one end, a first surfacing cutter aligned with the first trimming cutter, a top planing tool incorporating a relative trimming cutter at the opposite end to that associated with the bottom planer, and a second surfacing cutter aligned with the trimming cutter of the top planing tool.

Abstract: This invention relates to a process and an apparatus for achieving cost-effective and loss-free chipping of lumber which is supplied in lengths of the customary transportation width of approximately 2.50 m. According to the invention, the process comprises a loading operation in which a feed compartment which opens into a chipping space is loaded from above with a compact, aligned lumber pile and then a feed thrust acts directly on the lumber pile to cyclically load it into a chipping unit. The cyclic feed of the lumber pile continues with pieces of lumber of equal length being loaded while a pile for the next load is formed into another compact, aligned lumber pile. An apparatus comprises a loading magazine with pivotable load flaps forming a V-shaped bottom and arranged above a trough and a thrust plate longitudinally displaceable in a controllable manner to thrust lumber into a chipping compartment.

Abstract: An apparatus is disclosed for the production of prismatic or truncated-pyramid-shaped beams from boles (4) by edging the latter with the aid of at least two machining tools (13, 14) wherein a relative movement is generated between the bole (4) to be machined and the machining tools (13, 14). In order to be able to manufacture conical beams, the machining tools are adjustable during edging transversely to the direction of the longitudinal extension of the bole (4) the result being a linear relative motion of the machining tools (13, 14) inclined under an acute angle with respect to the axis of the bole (4).

Abstract: A wood processing machine includes a cylindrical cutter assembly having a plurality of adjacent disks, each holding one or more cutting blades. The cutting blades are mounted in indentations in the disks. The solid character of the cylindrical structure thus formed can be smaller than prior drum-type wood processors because the individual disks are stronger than the thin plate of a drum. The novel disk construction is shown utilized in a wood chipping apparatus and in a wood flaking apparatus.

Abstract: A log sawing and cutting apparatus has a knife head which serves as a cutting tool for the production of wood chips and a coaxial circular sawblade which serves to saw off at least one side board. The knife head is connected with a hollow shaft. The saw shaft is connected to a saw shaft and is pivoted and axially displaceably supported in the hollow shaft. The saw shaft is connected with a drive apparatus which provides a higher spped than the hollow shaft.

Abstract: Pieces of produce are sliced in a centrifugal slicer having an impeller rotating within a cylindrical slicing head having one or more slicing knives, the slicing head being rotated in the same direction as the impeller but at a rotational speed less than that of the impeller. This results in significantly less waste and scrap as compared to a conventional commercial slicer.

Abstract: A whole tree feeding and chipping assembly for longitudinally feeding whole trees with attached limbs and branches to a chipper wherein the chipper disc is arranged crosswisely at an acute angle to the longitudinal pathway of feed, and a feed works is provided for feeding the tree butt first to the chipper knives. The feed works includes a generally vertically disposed, fixed axis side feed roll on one side of the pathway, a generally vertically disposed swing side feed roll on the opposite side of the pathway; and a bottom feed roll disposed crosswisely to the pathway and defining the lower boundary of the pathway. A partly conical convergent chute minimizes frictional impedance and a plow is provided for moving debris from the vicinity of the feed works. The rolls are driven at coordinated speeds of rotation in a direction to feed the tree into the chipper mouth.

Abstract: An improved cutter knife for wood chip and flake producing apparatus includes shallow grooves in either the heel face or the gullet face of the knife intersecting the cutting edge and extending away from the cutting edge. The depth of the grooves is less than the depth of cut of the knife, and the grooves and corners formed by the grooves with the cutting edge provide an aggressive serrated cutting edge which penetrates into the wood and remains sharp longer than conventional cutting edges. Also disclosed is a novel wood flake material in which flake members have a larger area of exposured grain than of exposed side grain, thereby providing a short fiber length flake which can absorb moisture quickly by means of the exposed end grains, and can also dry quickly. The flake material is particularly useful as a bedding material for animals.

Abstract: The chipper includes an axially rotatable cutter disc having a frame plate and at least one cutting blade secured to the frame plate. At least one counterblade is axially spaced from the cutting blade. The length of the chips is adjusted by axially displacing a stop member relative to the cutting blade while the axial position of the cutting blade relative to the frame plate, and the relative position of the cutting blade and the counterblade remain unchanged.

Abstract: A chipping machine for processing wood including a chipping head with circumferentially spaced chipping knives to chip those portions of the wood in intereference with the chipping knives as the wood is moved past the inboard end of the chipping head, a facing head rotatably mounted adjacent the inboard end of the chipping head with facing cutters adapted to cut a flat face on the wood just inboard of the chipping knives, and drive means adapted to rotate the chipping head at a speed to generate the desired size wood chips and to rotate the facing head at a speed to generate the desired surface finish on the face of the wood.

Abstract: The invention provides a planing device for planing two opposite sides of a workpiece which has a flexible and continuous lower platen cantilevered from its frame. The platen has its free end flexed upward by a pneumatically actuated lever, and cooling passages are provided on the end of the lower platen to dissipate heat due to friction between the lower platen and workpiece.