Abstract: A wood chipper comprising a chamber in which wood is chipped, and a pair of rollers for feeding of the wood into the chamber. One of the rollers is a smooth roller and may or may not be an idle roller, and an other of the rollers is driven and has cutting elements thereon. One or more pressurized gas springs are attached to the rollers to apply a predetermined pressure to the rollers to cause the cutting elements to bite into the wood fed between the rollers. The cutting elements are blades each of which is un-notched in a direction radially of the other roller and each of which extends over substantially the entire length of the other roller.

Abstract: The lubrication device delivers a lubricant to the perforating device which provides intermittently spaced cuts to a moving web, also referred to as perforations. The lubrication device includes a retaining member, a plenum, and a comb having a plurality of comb channels. The plenum and the plurality of comb channels are in fluid communication with one another and deliver a lubricant to the perforating device. Lubrication of the perforating device in this manner may improve knife life, perforation quality and web handling.

Abstract: An apparatus for processing logs includes a conveyor for conveying a log in the apparatus, a chipping canter, which comprises two chipping head assemblies for chipping the opposite sides of a log, and a saw, which comprises at least two circular blades for sawing the log on at least one side. The chipping head assemblies are installed on different shafts than the circular blades. The circular blades of a saw are situated before the chipping canter in the conveying direction of a log and are arranged to, before chipping, partly or completely saw off from the log the parts of the log that are to be chipped with the chipping head assemblies.

Abstract: A process of comminution of corn stover having a grain direction to produce a mixture of corn stover, by feeding the corn stover in a direction of travel substantially randomly to the grain direction one or more times through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of corn stover travel.

Abstract: A method for making a fibrous strip configured for making a ribbon with a thickness ranging between 0.1 mm and 1 mm and a width ranging between 2 mm and 10 mm. The ligneous logs or cans are cut into square-edged plank with a predefined length. The strip is separated from a surface of the square-edged plank by an orthogonal cutting process. The depth of cut is equal to the thickness of the strip. The cutting speed direction is parallel to the fibers of the square-edged plank. Also, a fibrous reinforcement is obtained using the method and a device for implements the method.

Abstract: A method of processing bamboo to produce bamboo composite blocks for use in a wood frame. The method includes forming rectangular bamboo stickers, wherein a rectangular bamboo sticker comprises of consistent dimensions as to at least one other of the rectangular bamboo stickers, steaming the rectangular bamboo stickers, kiln drying the rectangular bamboo stickers, and acclimatizing the rectangular bamboo stickers. The method also includes assembling the rectangular bamboo stickers to form bamboo composite blocks, and hot pressing the bamboo composite blocks.

Abstract: A process of comminution of wood chips (C) having a grain direction to produce a mixture of wood particles (P), wherein the wood chips are characterized by an average length dimension (LC) as measured substantially parallel to the grain, an average width dimension (WC) as measured normal to LC and aligned cross grain, and an average height dimension (HC) as measured normal to WC and LC, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction one or more times through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel.

Abstract: A process of comminution of wood chips (C) having a grain direction to produce a mixture of wood particles (P), wherein the wood chips are characterized by an average length dimension (LC) as measured substantially parallel to the grain, an average width dimension (WC) as measured normal to LC and aligned cross grain, and an average height dimension (HC) as measured normal to WC and LC, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel, wherein the cutting discs have a uniform thickness (TD), and wherein at least one of LC, WC, and HC is greater than TD.

Abstract: Systems, including method and apparatus, for processing workpieces driven automatically along a linear path to a plurality of positions disposed substantially along the linear path. In some embodiments, a workpiece may be processed at one or more of the positions using two or more processing stations, such as a first processing station that cuts the workpiece into segments and a second processing station that performs another processing operation on the workpiece.

Abstract: A method and apparatus for retaining a flitch on a staylog or slicer for slicing veneer from the flitch, the staylog or slicer having a plurality of expandable wedge-clamp dogs, the method comprising the steps of providing a flitch having a plurality of dados for receiving a plurality of wedge-clamp dogs, positioning the plurality of wedge-clamp dogs within the plurality of dados in the flitch, and expanding the wedge-clamp dogs to retain the flitch on the staylog or slicer.

Abstract: A forest products lineal cutter assembly comprises a work piece scanning assembly, an outfeed conveyor assembly and a cutting station. The lineal cutter assembly also includes first and second work piece hold down elements above the scan belt at a first exit end of the scan belt and above the outfeed belt at a second entrance end of the scan belt. In some embodiments the first and second work piece hold down elements comprise hold down rollers.

Abstract: The invention relates to a process and an apparatus for producing veneer strips, chipped wood or the like, individual pieces of wood being joined together, with grains parallel, to form a group and then a multiplicity of such groups being arranged one behind the other, with grains parallel, to form a closely packed line, whereupon this line is then fed in its longitudinal direction, transverse to the wood-grain direction, to a chipping tool. In order, during the chipping operation, largely to prevent the accumulation of coarse chips, it is proposed according to the invention that the leading group conveyed up against the chipping tool is subjected, via the following group butting against it, to a longitudinal compressive force which acts in the longitudinal direction of the line, which exceeds the relative cutting force to which the leading group is subjected by the chipping tool, and which is largely absorbed by the leading group, which, by way of its advancement speed being braked, acts as an abutment.

Abstract: An apparatus for optimizing orientation of a workpiece in a planermill for feeding of the workpiece into a planer includes an infeed to the planer, a workpiece turner for selectively turning the workpiece end-for-end upstream of the planer on the infeed a workpiece flipper for selectively flipping the workpiece one hundred eighty degrees about a longitudinal axis of the workpiece upstream of the planer on the infeed, a scanner on the infeed upstream of the workpiece turner and workpiece flipper for detecting defects on the workpiece, a processor cooperating with the scanner, the workpiece turner and the workpiece flipper for optimizing the orientation of the workpiece relative to status and actively translatable cutterheads in the planer.

Abstract: An apparatus for optimizing orientation of a workpiece in a planermill for feeding of the workpiece into a planer includes an infeed to the planer, a workpiece turner for selectively turning the workpiece end-for-end upstream of the planer on the infeed a workpiece flipper for selectively flipping the workpiece one hundred eighty degrees about a longitudinal axis of the workpiece upstream of the planer on the infeed, a scanner on the infeed upstream of the workpiece turner and workpiece flipper for detecting defects on the workpiece, a processor cooperating with the scanner, the workpiece turner and the workpiece flipper for optimizing the orientation of the workpiece relative to status and actively translatable cutterheads in the planer.

Abstract: An apparatus for sizing and sanding a workpiece, the apparatus comprising a housing having a horizontally throughgoing passage, a feed conveyor for advancing the workpiece through the passage, the workpiece having an upper surface that advances through the passage along a pass line, a sanding station for finishing the upper surface, and a planing station for sizing the workpiece along the upper surface. The planing station of the present invention has a driven planer head, an antikickback assembly, a chip-break assembly, and means for disengaging the planing station to convert the apparatus from a planing and sanding configuration to a sanding-only configuration.

Abstract: A log processor and log processing method scans a log (L) at a first station (18) so that the longitudinal centerline (32) and a sawing scheme for the log can be automatically determined by a controller (4). The log is oriented at a second station (24) so that the longitudinal centerline is oriented with respect to a vertical plane passing through the feed line. The position of the log is automatically adjusted at third and fourth stations (36, 42) so that the saw blade path (56) through the log is generally parallel to the feed line as the log passes a log exit (12) and through a saw (14). The sawing scheme can include variable tapering sawing from split taper sawing to full taper sawing. Differential steering chain assemblies (37) may be used at the fourth station and may each include continuous loop, log-engaging chains (106) which engage the log above and below the log. Log chipping, profiling heads (62) may be used on either side of the feed line, such as at a fifth station.

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: A method for fabricating bamboo blind slats is disclosed. The steps include splitting a selected bamboo stem into several bamboo strips, removing the skins and joints from the bamboo strips before being disinfected and dried and then trimming them to fine bamboo strips. Further at least two bamboo strips are indented to joint with the corresponding ends, and then is trimmed to a fine jointed bamboo strip. A bamboo plate is obtained by joining fine jointed bamboo strips and/or the fine bamboo strips together in conjunction with a pneumatic press, and then is trimmed and polished. After slicing the bamboo plate into several bamboo slats, the bamboo slats need to be polished before covering a base coating, polished again before covering a face coating. Finally the bamboo slats are punched with two cord holes to be used for making a Venetian blind.

Abstract: For use as a wood intermediary and the like in industry, an essentially wedge-shaped wood flake with opposite concave and convex surfaces that converge at an imaginary tip outside the flake dimensions. The tip is located beyond the flake a distance of typically between 40% and 100% of the flake length.

Abstract: A method and an apparatus for dissecting logs in a sawing installation are disclosed. The installation having a reciprocally moving longitudinal conveyor for moving the logs reciprocally through a double band saw assembly utilizing band saw blades having sawing teeth both on a forward longitudinal edge and a rearward longitudinal edge thereof. As a consequence, the log is sawn both during the forward stroke and during the backward stroke of the reciprocally moving conveyor. Between subsequent strokes the band saw blades are displaced radially with respect to the conveying direction such that during each stroke the log first comes into contact with an outward band saw blade and then with an inward band saw blade, both relative to the log axis.

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: The present invention relates to a method for cutting a cant (5) from a log (4), consisting in:

Abstract: This invention relates to a planing machine that can plane and shape a workpiece to replicate a hand-hewn log for use in siding, paneling and other similar type building needs.

Abstract: An apparatus for splitting a wood board into two separate sheets, comprising a pair of parallel drive shafts rotatable in the opposite directions, a series of toothed wheels fixed on each of the drive shafts at a predetermined spaced interval, each toothed wheel having on the circumferential periphery thereof a number of teeth incisingly engageable with the board, the toothed wheels on one of the drive shafts being disposed radially in alignment with the toothed wheels on the other drive shaft, respectively, a knife having a cutting edge positioned and directed to split the board from end to end into two separate sheets. The tip end portions of the teeth of each two radially aligned toothed wheels is formed to be positioned in an offset relation in the axial direction of the drive shafts by forming the tip end portion to have at least one surface which is bevel or oblique with respect to a plane extending radially of the toothed wheel.

Abstract: For use as a wood intermediary and the like in industry, an essentially wedge-shaped wood flake with opposite concave and convex surfaces that converge at an imaginary tip outside the flake dimensions. The tip is located beyond the flake a distance of typically between 40% and 100% of the flake length.

Abstract: To make the usable wood volume of the tree trunks as large as possible, octagonal or dodecagonal dressed timbers are proposed from which then boards or beams with inclined edges are cut. To produce octagonal or dodecagonal dressed timbers, in a first machining stage (11) two side surfaces (13) are milled off the tree trunk, it is then turned by 90° and two additional side surfaces (19) are milled off in a second machining station (17). Immediately thereafter in another machining station (21) with four (for octagonal dressed timbers) or eight (for dodecagonal dressed timbers) milling cutters (22) the remaining rough edges (20) are milled off.

Abstract: A device for producing squared timber from tree trunks includes a feed section, a machining center, and a delivery section; the feed section has at least two grippers which can be placed against the tree trunk to be machined and using which the tree trunk is supplied to the machining center; the machining center has several plan cutters and feed rollers in order to advance the tree trunk, while it is machined by cutting at the desired locations. The square beam is transported from the machining center onto the delivery section and then removed for further machining. The grippers may be made such that they hold the tree trunk regardless of its diameter at a height which at least roughly corresponds to the axis of the machining center.

Abstract: A woodworking machine, in particular a trimming machine, of working elongate workpieces such as timbers, beams, boards and the like is proposed, the workpiece resting on a support and a longitudinally movable coupling element guiding the workpiece to working units. In this machine there is provided a guiding element which is likewise longitudinally movable and can be positioned in such a manner at a working unit that, on the one hand, optimal workpiece guidance is achieved and, on the other hand, the coupling element and the guiding element remain outside the operative region of the working unit.

Abstract: A method is designed for making bamboo blind slats. The method comprises an initial step in which a selected bamboo stem is split into a plurality of bamboo strips, which are then skinned and disinfected with a sulfur fume for over 12 hours. The disinfected bamboo strips are dried by baking before they are provided with a layer of adhesive. The coated bamboo strips are joined together in conjunction with a pneumatic press to form a rectangular bamboo plate, which is subsequently sliced into a plurality of bamboo slats, with each having a width and a thickness. The bamboo slats are smoothed by grinding and are then covered with a base coating and a face coating which is applied on the base coating. The twice-coated bamboo slats are punched so as to enable them to accommodate the pull cords of a Venetian blind comprising the bamboo slats which are made by the method of the present invention.

Abstract: A method of reducing noise in a barking plant; a barking drum, a chipper and a conveyor between these. The penetration of noise through conveying openings of a partly or wholly covered conveyor (3) for receiving logs from a barking drum (1), and/or a partly or wholly covered conveyor (8′) for feeding logs to a chipper (11), is reduced, and the noise level is decreased by means of the water (21) used for washing the logs. The water forms a continuous curtain (18, 19) at the front and/or back end of the conveyor (3, 8, 8′) between the drum (1) and the chipper (11).

Abstract: A rotatable cutter head comprising an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate concentrically thereon for rotation therewith, an outer hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate thereon for rotation therewith. The bore of the outer hub is adapted for receiving the inner hub concentrically therein for rotation therewith. An outer pressure-expansible sleeve is provided for being concentrically-mounted within the bore of said outer hub and pressurized for locking the outer hub onto the inner hub. An inner pressure-expansible sleeve is concentrically-positioned in the bore of the inner hub and pressurized for locking the inner hub onto a rotatable spindle, whereby the inner hub and outer hub and the respective cutter plates mounted thereon are locked in fixed, concentric relation relative to each other and to the rotatable spindle.

Abstract: Procedure for working curved tree trunks by chipping into timber products, such as boards and cants, in which procedure the trunk (T) is crook-chipped and a straight side board (S1) is edged at the same time. The invention also relates to an apparatus for implementing the procedure.

Abstract: A method of producing a hardwood flooring product, including the steps of processing a strip of raw wood into a blank having a predetermined thickness and width, and top and bottom surfaces defining parallel planes relative to each other, and splitting the blank along the width of the blank from one side to the other to form two low profile flooring strips having the same width as the blank and a thickness less than one-half the thickness of the blank. The splitting step includes the steps of providing first and second circular saw blades mounted on spaced-apart vertical axes for rotation in a single plane intermediate and parallel to the planes of the top and bottom surfaces of the blank and positioning the blank on conveying means upstream from the saw blades with the plane of rotation of the saw blades intermediate and parallel to the planes of the top and bottom surfaces of the blank for movement of the blank from an upstream position to a downstream position relative to the saw blades.

Abstract: Chipping heads are mounted for lateral movement in one dimension in a gang saw module which is itself moveable translationally in the first dimension and angularly in a second dimension, for skewing relative to an in-feed direction of a curved cant. The chipping heads are mounted on an in-feed side of the gang saw assembly. Stationary drive motors are mounted directly above the chipping heads, supported by a tower that is independent of the gang saw module. Vertical drive lines with U-joints drivingly connect the drive motors to the chipping heads while permitting the chipping heads to be moved normal to the axes of rotation of the drive motors. The motors are centered above the chipping heads, with their vertical drive axes midway between lateral endpoints in each dimension of the range of travel of the chipping heads. Motor spacing above the chipping heads and the drive line lengths are sufficient to accommodate that range of lateral travel.

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: A processing system for processing logs having a curvature into lumber pieces. The system has a cutting station including a saw box with a chipper and a vertical arbor saw mounted to the saw box. The saw box is movable upwardly and downwardly and angularly for tilting. The movement of the saw box orients the chipper relative to the log and provides the capability of the saw to follow a curved saw path. A scanner scans the log and a computer processes the scan data to determine the optimum saw path.

Abstract: The invention relates to a process and apparatus for producing veneer strips of predetermined length, width and thickness from wood. The apparatus has a severing tool for dividing the wood to be machined into boards, a clamp for clamping the boards, and a machining device for machining the clamped boards into veneer strips.

Abstract: A shaping machine has at least one rotatably driven spindle having a conical receiving opening. A tool is provided. A conical member is mounted in the receiving opening, wherein the tool is secured by the conical member to the spindle. A clamping device clamps the conical member in the receiving opening, wherein the tool is supported on an end face of the spindle.

Abstract: A log is first passed between a pair of coarse chippers to cut material from opposite faces of the log as coarse chips and produce a pair of flat sides. Then the log is passed between a pair of fine chippers to cut material from the flat sides as fine chips. The log is then rotated through about 90.degree. and the rotated log is passed between a second pair of coarse chippers to cut material from opposite faces of the log between the flat sides as coarse chips and producing two more flat sides. Finally the log is passed between a pair of fine chippers to cut material from the two more flat sides as fine chips. The coarse chips are 10 cm and 30 cm long, 1 mm and 5 mm thick, and about 35 mm wide and the fine chips are about 10 cm long, about 0.5 mm thick, and 3 cm wide.

Abstract: A method of fabricating bamboo slats into bamboo blinds, wherein bamboo wood is cut into bamboo strips of predetermined length. The bamboo strips are polished, then boiled in a hydrogen peroxide solution for bleaching the strips. The bamboo strips are then spliced into raw bamboo slats of a predetermined thickness. Next, the bamboo slats are subjected to grinding. Subsequently the bamboo slats are primed, and then molded by heat pressing. Holes are then punched in the bamboo slats for insertion of a pull cord, so that the finished bamboo slats can be assembled into a Venetian blind.

Abstract: A method and an apparatus for fabricating strands from round wood are disclosed. The strands have a length of between 200 and 350 mm in the direction of the wood fibers and have a width of between 1 and 15 mm. The strands are fabricated from profiled logs. In the cross-section of the logs, residual areas outside a center piece are defined, the center piece being the area intended to be dissected into beams or boards at a later stage. The residual areas are provided with longitudinal slits by cutting or sawing. The strands are then cut out of the residual areas until the residual areas are entirely removed.

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: A device for finishing the corner of an impression of the profile. Corners of impressions of doors manufactured in one-piece are shaped to give the appearance of a mitered joint where a joint does not exist. By selecting the appropriate cutter, sides of the corners of differing profiles can be mitered to corresponding forty-five degree angles relative to the square of the corner.

Abstract: A method of producing a hardwood flooring product, including the steps of processing a strip of raw wood into a blank having a predetermined thickness and width, and top and bottom surfaces defining parallel planes relative to each other, and splitting the blank along the width of the blank from one side to the other to form two low profile flooring strips having the same width as the blank and a thickness less than one-half the thickness of the blank. The splitting step includes the steps of providing first and second circular saw blades mounted on spaced-apart vertical axes for rotation in a single plane intermediate and parallel to the planes of the top and bottom surfaces of the blank and positioning the blank on conveying means upstream from the saw blades with the plane of rotation of the saw blades intermediate and parallel to the planes of the top and bottom surfaces of the blank for movement of the blank from an upstream position to a downstream position relative to the saw blades.

Abstract: A gangsaw in-feed mechanism for positioning a cant and feeding the cant generally longitudinally into a gangsaw along a feed path, wherein the cant is oriented with its planar faces generally horizontal, and wherein the in-feed mechanism has laterally opposed laterally translatable skewable chipping heads lying generally in first and second generally parallel vertical planes laterally opposed on either side of the feed path, a method for opening opposed generally vertical longitudinal faces so as to form curved longitudinal profiles on laterally opposed sides of the cant according to an optimized profile solution, so as to feed the cant into the gangsaw along a generally linear feed path for curve sawing in the gangsaw, having the steps of longitudinally translating and positioning the cant along the feed path between said chipping heads, laterally translating and simultaneously skewing the chipping heads, according to the optimized profile solution, into cutting engagement with the laterally opposed sides of

Abstract: This invention relates to debarking and chipping folded whole trees. Such structures of this type, generally, increase wood recovery by making high-quality chips out of tree tops, branches, as well as, other larger portions of the tree.

Abstract: A canter capable of curve-cutting featuring rotary, power-driven frustro-conical chipper heads for chipping a workpiece, which chipper heads are adjustable under the influence of movement structure to achieve five degrees of freedom of motion and adjustment which take into account the different topographical characteristics of different workpieces.

Abstract: The present invention concerns a method of producing a wooden package or container from an elongated piece of wood, e.g., a precut alder or birch piece (block). The invention is implemented by separating at least one essentially cylindrical, hollow blank (1) with the help of axial boring longitudinally from inside said block of wood, drying the blank and working its outer and inner surfaces by conventional wood-working techniques such as milling and turning to mutually concentric cylindrical surfaces of desired diameters, finishing said surfaces to desired smoothness by, e.g., sanding, and attaching to the cylindrical envelope piece thus obtained a bottom piece (2), and when required, also cover (3).

Abstract: A veneer lathe is provided with back-up rolls modified to include serrating knives to effect cutting a log longitudinally at predetermined circumferentially spaced apart intervals to define the width of wood strands, and also to include scribing cutters to effect cutting a log circumferentially at longitudinally spaced apart intervals to define the length of wood strands, whereby when the log is rotated past the peeler knife of the lathe, the thickness of wood peeled from the log breaks apart into a multiplicity of vertical grain strands of predetermined length, width and thickness.

Abstract: A machine in which a log is transported through the machine center for chipping or sawing a slab from both sides of the log in a single pass and/or sawing a side board or flitch from one or both sides of the log in a single pass and/or sawing multiple boards by reciprocating the log through the center of the machine. This invention relates specifically to the center carriage feed system having a bottom carriage and a top carriage in which the bottom carriage supports the log continuously for its full length and the top carriage utilizes hold down bars or dogs that engage the top of the log. The bottom carriage includes a log supposing vertical member having a transverse member at its lower end provided with a wheel at each end to engage widely spaced parallel tracks. One of the wheels and tracks are of V-shaped configuration to stabilize and guide the vertical log supporting member to reduce lateral deflection. The other track and wheels are flat.