Abstract: This invention relates to a board with tongue and tenon and method for manufacture of the board with tongue and tenon. Board with tongue and tenon, which can be joined together without using other tools, comprises a hard board having a rectangular shape having a top side, a bottom side, a first lateral side opposite to and parallel with a second lateral side and perpendicular to a third lateral side opposite to and parallel with a fourth lateral side, the first lateral side and the third lateral side having a male connector thereon and the second lateral side and the fourth lateral side having a female connector thereon, characterized in that said insertion of the male connector into the female connector moves along a curve which is a part of a first ellipse; a second ellipse; and a third ellipse, wherein the first ellipse, the second ellipse, and the third ellipse are concentric.

Abstract: An apparatus for producing wood lagging blankets includes a board singulator, a board spacer, a wire strand feeder, and a fastener applicator. The board singulator includes an infeed and infeed queue, and a selectively actuable stop. The board spacer includes a spacing conveyor and may be selectively actuable according to instructions from a programmable controller, wherein the fastener applicator mounted aligned vertically over said at least one strand of wire to fasten by fasteners at least one strand of wire down onto the boards on said spacing conveyor to thereby form a lagging blanket of spaced apart boards spaced with substantially constant gapping between the boards, wherein said lagging blanket is tethered together as a stable matrix of laterally aligned, constantly spaced boards, and wherein the lagging blanket is sized to wrap completely around a desired circumference.

Abstract: A method of positioning lumber in a given orientation in a handling apparatus having a base frame, a longitudinal transport assembly, and at least two gripper arm support platforms with a pair of gripper arms positioned on each of the support platforms. A work piece is gripped with the gripper arms without the work piece engaging the longitudinal transport assembly. The gripper arms are adjusted on at least one of the support platforms in a direction generally perpendicular to the longitudinal transport assembly in order to selectively position the work piece. The work piece is then brought into engagement with the transport assembly and the gripper arms are released from the work piece.

Abstract: A woodworking machine includes a worktable, a feeding device, a pressing wheel device, and a cutter disposed between the feeding device and the pressing wheel device. The feeding device includes a feeding unit, and at least two positioning members connected to the feeding unit and locked releaseably on a side portion of the worktable. The pressing wheel device includes a pressing wheel unit, and at least two positioning members connected to the pressing wheel unit and locked releaseably on an opposite side portion of the worktable. The pressing wheel unit presses a workpiece against the feeding unit.

Abstract: A feeding mechanism is adapted for use with a woodworking machine. The feeding mechanism includes a rail unit adapted to be disposed on two sides of a worktable, a feeding unit, and a press roller unit. The feeding unit includes a slidable body adapted to extend across the worktable and disposed slidably on the rail unit, two spaced apart rollers disposed on the slidable body, a belt component trained on the rollers, and a driving component for driving the rollers to rotate along with the belt component. The press roller unit is adapted to extend slidably across the worktable and includes a slidable seat disposed slidably on the rail unit, a press roller connected pivotally to the slidable seat, and a resilient component adapted for biasing the press roller to press the workpiece against the feeding unit.

Abstract: The multiple saw machine includes a rigid mainframe that provides mountings and attachments for all mechanical components. The components include multiple saw frames, conveyor belts, transfer chains and drive shafts for providing motive power for the conveyor belts, saw blades and transfer chains. A computer and an array of sensors are employed to monitor the saw machine functions and to control the timing of and location of board cutting.

Abstract: Apparatus for shaping a flitch includes an upper shaping head assembly for shaping an upper surface of the flitch, a lower shaping head assembly for shaping a lower surface of the flitch, and a groover assembly for placing at least one groove in a surface of the flitch. The apparatus further includes at least one centering arm and chain runner assembly. The at least one centering arm and chain runner assembly includes a chain runner assembly for conveying the flitch toward a transverse center of the centering arm and chain runner assembly, and a centering arm assembly for positioning the flitch. A flitch transport conveyor includes a conveyor frame, a first dogger arm assembly for engaging a first end of the flitch, and a second dogger arm assembly for engaging a second end of the flitch.

Abstract: An apparatus for feeding flat, rigid material through a cutter comprising a continuous drive conveyor belt with a non-skid face, having one or more Guide ‘V’ belts bonded to its reverse side parallel to the direction of movement, which ‘V’ belts communicate with corresponding ‘V’ grooves in the power rollers and the rollers of the feed bed, another continuous drive conveyor belt on the out-put side of the cutter, the movement of both conveyors being synchronized by a timing/drive belt which transfers the motor drive to the inside rollers of the out-put and the input sides, and having from above regularly spaced hold-down rollers along the span of both conveyors to keep the rate of movement of the flat material through the cutter consistent. This apparatus has its preferred application in the lumber industry for trimming defects and/or wanes from wood boards, so that the boards maintain consistent position in the horizontal plane while traveling through the cutters.

Abstract: The invention relates to a feeder device in a timber harvester, which includes a frame, a 3-row roller chain arranged to be rotated around a drive sprocket, a turnover member and roll guides, which roll guides extend for a great length of a gripping side of the feeder device, between the drive sprocket and the turnover member, and in which roller chain there are rows of links staggered relative to each other by transverse pins, comprising a middle row of links with smaller rollers and outer rows of links with larger rollers, each row of links corresponding to its own roll guide.

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: The present invention provides systems and methods for end squaring and/or dividing elongated materials by determining an actual orientation of the elongated material, or an actual position of an associated pair of positioning mechanisms that are contactable with the elongated material, and changing the actual orientation to correspond with a desired orientation through independent movement of the positioning mechanisms prior to or during the end squaring and/or dividing operation.

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: Machine for profile working of front surfaces on oblong wood workpieces resolves the problem of simple, accurate and fluent or continued working of workpieces front surfaces of various lengths and intersections, and the machine is of a compact construction. It is characteristic by the construction of the entrance turnover device transversely placed between longitudinal conveyors with carriers, which has on the periphery of rotating wheels constructed movable bearing couplings, and by them fixed guiding plates with the groove inside which there are movably inserted guided bearings of bearing couplings. In the area of the entrance turnover device there are placed under an optional angle the oblique roller conveyors, inside which there are flexibly and circularly movably inserted rolls.

Abstract: In preferred embodiments the invention includes a transverse board conveyor, a board extrusion portion, a marking station a sawing portion, and one or more board feeding portions, all of which are controlled by a process controller. In such, preferred embodiments, one or more stacks of boards are serially fed onto the transverse board conveyor and are conveyed in a direction transverse to the length of the boards. The boards are individually deposited into an elongate receiver of a board extrusion portion to be conveyed longitudinally. A carriage in the receiver transports the boards past an end detection station, past a marking station, and to a sawing station. The carriage has a moveable clamping member which pinches the board between a wall of the receiver and the clamping member. The carriage moves down the receiver with the board clamped thereto conveying the board in a longitudinal direction to position the board in a desired position for sawing the board.

Abstract: A spiked H-style link for a sharp chain conveyor where the single centrally-placed saddle of the prior art is replaced by a double saddle with a centrally-located opening shaped to receive a sprocket tooth. The double saddle moves each saddle outward from the central portion of the spiked link to enhance the rigidity of the legs between which the connecting pins act. The legs are provided with a thickened offset step on the lower inner portion of each leg. There is a corresponding decrease in the thickness of the legs in the region where the connecting link works. By decreasing the thickness of the legs in the region outside the offset step, the connecting link may be widened, allowing for a greater bearing surface on the connecting pin and thus reducing the rate of wear on the connecting pin.

Abstract: An apparatus for positioning lumber pieces for end trimming, by means of a succession of gates mounted on traveling chains set at a converging angle with the even end line of uniformly spaced lumber pieces carried transversely on parallel chains towards a multiple saw trimmer. The positioning is accomplished by any one gate pushing against the end of a lumber piece and then retracting when the lumber piece has reached the appropriate position for cutting by stationary trimming saws. The positioning process and the saw selection for each cut are scanner/computer controlled.

Abstract: A log flaking and loading method and apparatus. First and second pairs of cutting heads have cutting heads spaced apart to receive a log passed therebetween and thereby to cut two substantially parallel sides. The log is first cut by the first pair of cutting heads, rotated about its elongate axis, and cut by the second pair of cutting heads to produce a four-sided cant. The logs are preferably stored ahead of the first pair of cutting heads in corresponding carriers, which are preferably held in a magazine for dispensing the loaded carriers.

Abstract: A method for processing of workpieces, which are supplied to a processing station, in which the workpieces are processed on one side, are moved out of the processing station, and are turned and again supplied to the processing station for processing the second side. In particular, a workpiece or workpiece package is individually supplied to the processing station, is processed there and individually moved on following the processing of both sides. The first side of one workpiece, whose second side has not yet been processed, and the second side of another workpiece whose first side had already been processed in the previous processing operation, are processed in one processing operation in the processing station, so that during each processing operation a workpiece processed on both sides is created together with a workpiece processed only on one side.

Abstract: The present invention relates to a timber harvester (10), which includes two opposing jointed feed devices (14), stripping blades (15), and a cutting device (16). The frame (21) of the feed device (14) is set on articulated arms (13), and in which the feed device (14) in a roller chain (17) of one or more rows of links, set to rotate round a drive cog (24), a turning member (25), and slightly curved slide guides (22, 23).

Abstract: The board positioning device of the present invention is for optimally longitudinally positioning a board for trimming. The board is translated from an upstream position to a downstream position in a first direction towards the trimming saws. The board translates at a translation speed on a board translating device such as a lugged transfer chain. The board while translating in the first direction, is aligned longitudinally, that is, along its length, in a second direction perpendicular to the first direction so as to position the board relative to the saws. The board is urged by board ending means, such as ending rolls, in the second direction against a corresponding board positioning member, such as a shaft mounted paddle, on the board positioning device. In the preferred embodiment, the first and second directions lie in a generally horizontal plane.