Abstract: The mechanism is used for rotating a tree-felling implement rotatably connected to a distal end of a boom of a logging vehicle by an implement pivot. The mechanism comprises a first arc-shaped member that extends in a plane perpendicular to the boom plane and is convex with reference to the implement pivot. The first member has a first end rotatably connected to the frame of the implement at a given distance from the implement pivot. A second arc-shaped member, coplanar with the first member, is also convex with reference to the implement pivot. The second member has a first end rotatably connected to the second end of the first member for defining an intermediary junction, and a second end rotatably connected to the distal end of the boom. A hydraulic actuator is mounted on the frame of the implement and has an end rotatably connected to or adjacent to the intermediary junction for rotating the implement during operation of the actuator.

Abstract: A boom-mounted grappling and manipulating apparatus is provided that may be rotatably mounted on a vehicle, comprising an articulated boom with a grappling and manipulating head rotatably and pivotally mounted thereto. The head is provided with opposable jaws comprising jaw members that apply an even pressure to an object being gripped. A drive coupling may be provided to provide a continuous rotary link between hydraulic lines on the boom with lines the head. The coupling comprises a coupling body rotatably housed within a sheath with a groove between the coupling body and the sheath. The groove permits fluid to be transmitted from the body to the sheath while they are rotated relative to each other. The boom may be provided with a link joining two of the segments, provided with dual articulated cylinder mounts on opposing sides and capable of permitting approximately 360 degrees of rotation between the segments.

Abstract: An improved boom (24) for a sliding boom delimber (10) is disclosed formed from a prestressed, conventional I beam (28). A first segment of a cable bundle (70) extends from the grapple head (36) and is secured adjacent the lower flange (32) of the I beam (28). The second segment of the cable bundle (70) is inside and carried by an energy chain (74) and includes first and second, inversely related, linear portions interconnected by a third, C-shaped portion. A sag plate (60) is coextensive with the first segment and located on the opposite side of the first segment than the lower flange (32) for preventing the first portion from sagging and engaging the first segment. Sides (50, 52) extend from the outer edges of the I beam flanges (30, 32) for partially enclosing the energy chain (74).

Abstract: A balancing skid for a tree harvesting machine, which balancing skid is designed to mount adjacent to the cutting assembly beneath the cutting frame of the tree harvesting machine and spaced from the existing blade skid to balance the cutting assembly horizontally and facilitate more accurate and cleaner horizontal cuts of the trees being harvested, with minimum blade warp and tooth damage. The balancing skid includes a steel skid plate characterized by a substantially horizontal plate base and a plate skid extending upwardly from one end of the base plate in angular relationship and terminating in a skid nose. The plate base and plate skid are welded to a base connector and a skid connector, respectively, and the base connector and skid connectors are, in turn, welded to the cutting frame or undercarriage of the tree harvesting machine to securely mount the skid plate on the tree harvesting machine.

Abstract: A hydraulic control circuit for uniform controlled movement of stripping and guiding arms in a tree delimbing apparatus. The piston rods of said cylinders are mechanically coupled to rotate tubular sleeve members with affixed stripping and guide arms between outward and inward positions. The stripping levers and guide arms open and close about a felled tree in a uniform manner for delimbing operations. A valve is provided for actuation to permit the guiding arms to be held in an open position, while the stripping arms are closed about a tree to accommodate a bent trunk.

Abstract: A fastening system for a circular saw blade (1, 10), wherein the circular saw blade is fastened by means of a screw/screws (2, 9) to a fastening flange on the turning arbor (6), to a chipping edger (3) in a hewing saw, or to a chipping cutter (8). The fastening part (5, 11) of the circular saw blade (1, 10) is made frustoconical and the circular saw blade (1, 10) is fastened between two corresponding frustoconical surfaces.

Abstract: A fastening system for a rip saw blade and chipping edger combination includes at least one rip saw blade provided with holes and at least one chipping edger mounted collinearly and adjacent to the rip saw blade on a turning arbor so that the teeth of the chipping edger is aligned with the holes provided in the rip saw blade. The rip saw blade, the chipping edge and the turning arbor are all held stationary relative to each other by anchoring the same on the turning arbor with a fastening device such as a nut. An intermediate space or recess is provided between the rip saw blade and the chipping edger to permit the rip saw blade to yield in either lateral direction.

Abstract: The present invention concerns a circular saw blade assembly for a saw mill or similar apparatus used for sawing boards from logs, said circular saw blade assembly comprising at least two circular saw blades attachable to and axially transferrable on a saw blade spindle as well as one or several edge milling cutters for shaping the board to a correct width.

Abstract: An apparatus for the cutting and sawing of logs including a cutting unit mounted to engage the log and including a pair of spaced apart axle sets. Each of said axle sets has mounted thereon at least one disc saw for sawing the logs in a lengthwise direction and at least one chipper edger for chipping a board to the right width. The cutting unit is moveable so that the axle sets are moved and the position of the disc saw and the chipper edger on each of the axle sets in changed relative to the log.

Abstract: A method and device for making a completely smooth cut in a sandwich panel constructed of a core having two relatively thin and mechanically resistant skin plates adhered thereto on both sides. The disclosed method using the steps of cutting a channel in at least one of the skin plates and cutting the core with another blade through the previously cut channel.

Abstract: A method and an apparatus for continuously processing and packing elongated articles (10) such as coherent pairs of chopsticks imply that the articles (10) are continuously advanced in the longitudinal direction in a track and are centrally aligned during the continued advancement. The alignment is performed during the processing by means of one or more processing implements (31, 35) by means of uniform centering rolls (14, 15) operating from their respective side of the plane of symmetry of the articles. These centering rolls are biased by a uniform spring tension. Subsequently the articles are continuously advanced in the transverse direction by means of transverse conveyor means (50, 51) to a bundling device. In the bundling device the articles (10) are situated in layers and collected in a bundle (80) of articles (10) subsequently wrapped in a sheet material (84) in a wrapping device (83).

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: A complete production line of a wood I-beam manufacturing apparatus and the method of manufacture is disclosed wherein generally identical chord members are simultaneously formed by cutting of a wooden stock material into the chord members and simultaneously providing grooves in one surface of each chord into which web members are received to form the I-beam. The individual web members are conveyed along a chords and webs assembly line between the grooved chords and the chords are converged so that the grooves interfit with the web edges to form the I-beam. The web longitudinal edges are preferably beveled in an off-line beveling operation. The beveled webs are stacked for feeding into the chords and webs assembly line. Prior thereto, first and second glue layers are applied to one transverse edge of each stacked web member. The web members are subsequently conveyed in the assembly line in end-to-end abutting relationship.

Abstract: A composite beam has round timber sections joined by nail plates, each timber section being edged in accordance with the conical contour of the tree trunk from which it is formed. The timber sections are joined by the nail plates with their tapered ends pointed in the same or in opposite directions, depending on the load requirements. Each nail plate has a front edge, a rear edge and a pair of longitudinal edges, and rows of nails are formed of tongue-shaped punch-outs in the nail plate, with each punch-out being parallel to the longitudinal edges. A step pattern is provided on the front edge and/or the rear edge.

Abstract: Two circular saws are arranged with their rotary axes parallel to each other and driven in opposite rotational directions. The flight circles of the two saws overlap each other. The cutting edges each extend, without touching, into the gaps of the respective other saw. The saws are driven in forced synchronism.

Abstract: The present invention comprises the combination of an elongated curved linebar with at least one saw. This arrangement enables "sawing-around-the-curve" so that increased recovery can be obtained from cants or logs having significant amounts of sweep. The linebar is positioned so that a tangent at the end adjacent to the saw is parallel to the plane of the saw. The linebar is preferably curved so that it approximates the average curvature of the cants or logs being fed to the saw. An auxilliary straight line bar, which is normally out of contact with an incoming cant, may alternatively be moved into position when the incoming cant is relatively straight sided.

Abstract: The present invention is a linebar assembly for guiding a cant or log into a saw. It comprises a flexible linebar which can be bent from a straight-line configuration to one approximating a circular arc having a minimum radius of about 30 m. The linebar can be configured into a circular arc which approximates the curvature of a cant or a log having sweep as great as about 100 mm in 5 m of length. The cant is fed into the saw along a circular path to achieve significantly higher lumber recovery. Extended tests have shown that this recovery will be 20-30% greater than that obtained using conventional straight-line sawing methods without any reduction in grade recovery.

Abstract: A method and a device for carrying out the method of guiding the blades (4) of a circular saw in operation, such as at the sawing of, for example, saw timber, timber blocks, battens or other workpieces on wood basis, where one or several blades (4) are located at an axle (6) and each blade is guided by at least one guide (9,11) acting on the blade. At least one of the guides (9,11) of each blade (4), and in such a case guides corresponding to each other for all blades (4), separate or together with said corresponding guide of remaining blades in the form of a guide package (9',11') during the sawing are floating substantially in the axial direction of the blades (4) and hereby continuously positioned laterally in response to movements and position of the workpiece (1) being sawn, substantially in the axial direction of the blades in connection to the guide or guide package and/or the lateral movements and lateral position of the blade(s) in connection to the guide (9,11) or guide package (9',11').

Abstract: A method and apparatus for producing lumber products which are machined on all sides. With this method, the curved trunk which is to be machined, and which increases approximately conically in thickness toward one of its ends, is first, prior to flattening its longitudinal sides and cutting off boards, aligned relative to a processing line of sawmill equipment in such a way that its longitudinal central plane, which is disposed in the direction of curvature of the trunk, extends approximately parallel to the machining surfaces of side cutting devices which flatten the longitudinal sides of the trunk. After that, a portion of the large trunk end which projects beyond an alignment plane is flattened. This flattening is effected in a plane which is tangential to the two trunk ends on a convexly curved surface portion thereof.

Abstract: A woodworking machine to form finished dimensional lumber from cants by a single pass of the cants through the machine and comprising compression and feed rollers above and below a longitudinal path and parallel longitudinally offset arbors respectively are mounted above and below the path upon which spaced saw blades are mounted with opposed blades in common planes and of diameters adequate to form complete cuts through a cant during a single pass, the arbors also supporting between the blades additional cutters to plane the edges of the dimensional lumber and form rounded edges thereon.

Abstract: A cutter for square timber hewing, which consists of a cutter disk shaped like a truncated cone and on the mantle surface of which have been affixed cutter bits arranged after each other in helical configuration, so that cutting takes place with each cutter bit in its turn, starting at the outer periphery of the cutter cone and proceeding inward. The cutter bit has two cutting edges which lie on each other's extension and define an obtuse angle. One bit edge moves in parallel with the grain of the timber and the other bit edge moves obliquely with reference to the grain of the timber, hewing of the square timber being effected by feeding the trunk in between two opposing cutters or pairs of cutters. The cutter bit has been affixed to the cutter disk by the extension, pointing towards the center of the cutter disk, of the cutter bit's bit edge cutting in the direction of the grain.

Abstract: The machine described in this disclosure serves to produce pairs of drawer sides from a panel, the thickness of which is slightly more than twice the thickness of one drawer-side; a first arrangement of saws cuts the panel to a predetermined drawer-side height; while a second arrangement of saws cuts off the panels to a predetermined drawer-side length; by means of conveyors, the panels are then passed to a band-saw which slits each panel, through its thickness, into two boards of substantially equal dimensions; two tables each receive a board laid flat, the lower surface of each board being planed by a series of cutters, the sides being machined by a second series of cutters, and the upper surface being planed and grooved by a third series of cutters; the boards are then brought together on a machining table where horizontal and vertical dovetailing heads form a male dove-tail at the end of the drawer-side and a female dove-tail on the upper surface of the drawer-side.

Abstract: A cutting machine fitted with saw blades for pieces of timber has, adjacent to at least one pair of outer saw blades, lateral guide devices, the position of which can be adjusted, and which ensure the guiding of a worked piece of timber when its rear end section has left the lateral guide devices before the saw blades on the feed side of the arrangement. The arrangement is suitable for simple sawing machines and for reducing and reducing-sawing machines, and is particularly advantageous for the working of curved timber.

Abstract: A precision high velocity cutting tool having indexable inserts or cutting bits includes a replaceable cutting section or insert holding nest that is made of a material that is harder and stronger than that from which it is economical to make the major cutter body. The nest is easily replaced without removing the cutter body from the drive shaft or spindle. Two holding screws retain the nest on the cutter body, one of them also securing an indexable cutter insert in cooperation with a reversible clamp. The nest facilitates the replacement of that portion of the cutter body that tends to deteriorate most rapidly and enables the replacement to be confined to the damaged area of the tool. A shaver blade is included that effects, in cooperation with the main cutting inserts of the cutting tool, smoother cutting, providing a finish approximately a planed surface.

Abstract: A saw and chipping device to convert veneer peeler logs into pieces of lumber of dimensions to produce maximum useful products and minimum waste and comprising a pair of similar sets of saws and intervening chippers on a pair of parallel power driven arbors respectively above and below a path of travel for said logs and one arbor trailing the other a predetermined distance, said saws respectively sawing said logs in common planes from opposite sides to a depth slightly greater than half the diameter thereof to form complete cuts to form adjacent boards varying in diameter in accordance with the sections of the logs in which they occur, feed rollers power driven in directions to feed logs to said sets of saws and chippers, and auxiliary guide rollers downstream from said sets of saws and chippers provided with stepped circular surfaces above and below said path of travel, the diameters of said stepped surfaces increasing in diameter from the center toward the opposite ends of said rollers in accordance with th

Abstract: Apparatus and method of machining a long wooden rod of square cross-section, of selected dimension, so as to provide a multi-link chain of separate inter-linked oval links. In its simplest form, the machine involves a single rotating cutter assembly, which includes two thin rectangular blades spaced apart, and contiguous with a central smaller radius portion, which has a concave contour. In the preferred arrangement four cutters are applied with the plane of each cutter coincident with a diagonal plane of the square rod and positioned over one corner, so as to provide a wooden cross with each arm rounded on its outer edge. By applying the cutters in such a way each of the links in one arm of the cross are cut to a selected length and rounded. By applying the cutters to each corner of the rod, a plurality of links lying in perpendicular planes are provided, which links are attached to each other at their ends.

Abstract: The invention relates to a method and apparatus for sawing logs having a curved longitudinal length to obtain maximum recovery of sawed planks therefrom. There are provided several sawing stations for handling the curved log including edge sawing, heart split sawing along the curved center line of the log and perpendicular to the edge sawed surfaces to produce two sections having curved center cut surfaces, and dividing sawing each section parallel to the center cut surface.

Abstract: A double bay industrial saw having delivery mechanism to receive timber cants of substantial size selectively directed to either saw bay where a single source of power operates multiple saw systems respectively operable to produce different types of boards with different edge configurations simultaneously as selected and desired. The cantilever type of pairs of arbors at opposite sides of a central housing respectively support sets of cooperating saw blades on driven arbors separately driven and supported upon separate arbors, and chippers if required to form edge configurations are also mounted upon said arbors, whereby the saws produce finished cuts in the cants to form completed products at the delivery end of the machine. Various feed rollers and cooperating pressure rollers insure positive feeding of the cants to and through the sawing regions of the machine.

Abstract: A headstock of a panel cutting machine for cutting panels having a laminate, and particularly wood panels having a plastic laminate comprising, a conveyor for feeding a panel in a feed direction on a feed path, a rotatably mounted panel cutting device disposed in the feed path for cutting the panel and a rotatably mounted laminate cutting device disposed in the feed path in front of the panel cutting device in the feed direction and in alignment with the panel cutting device for cutting the laminate of the panel. A panel cutting drive is connected to the panel cutting device for rotating the panel cutting device and a laminate cutting drive is connected to the laminate cutting device for rotating the laminate cutting device in a direction opposite from the rotation of the panel cutting device and tangentially in the feed direction. A pressure device is connected to the laminate cutting device for biasing it downwardly at a selected pressure onto the panel.

Abstract: This disclosure relates to a cant forming machine wherein logs are cut in advance to the predetermined length of the wood slats and pieces to be formed, after which the logs are automatically moved through a series of saws and molding heads to first cut guide grooves in the lower portion of each log, after which the log is moved onto guides where it is under full control. Following this, necessary cuts are made in the log to define a plurality of cants, followed by a final cutting of the log to separate the plural cants. The machine is adapted to continuously receive cut lengths of logs with there being conveyor means for presenting logs to the machine and a cut-off saw for cutting the logs to the predetermined length. Also, the machine has a reciprocating pusher carried by an endless conveyor chain with the pusher being connected to the conveyor chain in a manner wherein the conveyor chain may slip relative thereto in the event of a jam.

Abstract: A woodworking machine capable of simultaneously making a number of cuts through stock material and shaping opposed edges simultaneously to form a plurality of pieces finished on all sides. The woodworking machine includes feeding means capable of feeding stock material into and through a cutting zone, first and second arbors disposed in the cutting zone to either side of the feed path of the stock material, each of the arbors being provided with a plurality of saws and shapers aligned with corresponding saws and shapers on the other arbor to saw individual pieces from the stock material and to shape opposed edges. The feed means is driven by a reversible variable speed hydraulic motor and is capable of feeding the stock through the cutting zone at varying speeds. An improved dust collection apparatus is also disclosed herein.

Abstract: This invention is directed to apparatus and method for working pieces of wood and which pieces of wood may have a flat side or may be a log.The apparatus and method are directed to the climb cutting or climb milling, on the face of the wood, and the rotary milling, cutting through the wood, to the working of said pieces of wood so as to form useable lumber and to form useable wood chips, and which wood chips can be further processed to make useful products of manufacture.One of the side features of this invention is the utilization of small pieces of wood and which small pieces of wood, prior to this invention, were either chipped or burned instead of being further processed to more economically valuable lumber.