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 joint system having a flexible spring located in a horizontal groove of a panel, the spring having an inner flexible part and being displaceable horizontally in the groove.

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: The invention relates to a group of elongate panels for imitating a slat, the group comprising at least two slat end panels which have respectively a first short traverse edge and a second short traverse edge and two longitudinal edges and which, when the first respective short traverse edges are placed end to end or are arranged on the end of short traverse edges of at least one elongate intermediate panel, form a slat which has a continuous decoration on the joint of the traverse edges. The panels may have bevel longitudinal edges on their decorated sides, and the second short traversal edge of the respective slat end panel is formed on the decorated side as a bevel transversal edge.

Abstract: The present invention is a new and novel modular raised wall paneling system and method of manufacture that is economical, labor non-intensive, and can be easily constructed for a variety of room configurations and dimensions. The modular raised wall paneling system of the present invention comprises a plurality of individual panel sections having a joint there between, wherein a panel section includes a recess portion forming the appearance of a raised panel thereon. In a preferred embodiment of the invention the panel sections include along opposed longitudinal edges a tongue and a groove such that the panel sections can be disposed in parallel side-by-side mating relationship such that the tongue of one panel section is received in the groove of an adjacent panel section.

Abstract: A system and method for profiling and manufacturing curved arches includes cutting out the outer dimensions of individual curved sections from sheet material, each curved section including an outer radius, an inner radius, a top surface, a bottom surface, a male end and a corresponding female end. Assembling together the individual curved sections by joining interferingly end to end male ends with female ends to form an assembled curved section. Milling a profile into the top surface of the assembled curved section thereby resulting in an assembled curved section with a profiled top surface.

Abstract: Method of manufacturing multi piece curved molding from planar material including the steps of, milling locating holes in the bottom side of sheet material proximate ends of curved sections, milling curved section from sheet material including the finished outer radius, the finished inner radius and milled ends, milling the profile to produce the profiled top side on curved section, placing locating holes in corresponding locating pins in a precision cut off fixture and precision cutting ends of curved section thereby producing a precision cut end and discarding waste portion.

Abstract: A fixture includes a router guide portion having a router support surface and a workpiece support surface, a drill guide portion having a drill bit member, an opening adjacent the router guide portion and the drill guide portion for accepting a workpiece, and a clamping portion. The clamping portion includes a clamping member for securing the workpiece to the router guide portion.

Abstract: A simulated shingle structure comprising a wood board with a base and an upper edge, the base having a thickness greater than the upper edge, and a plurality of vertical cuts extending partially through a front face of a board. In one embodiment, a portion of the base is removed such that the shingles will appear to have differing lengths.

Abstract: A method as well as a bonding installation for machining of wood workpieces. At least one machining aggregate is provided where in the supplying and discharge region one conveying system each is arranged. Besides machining of the front end region by the machining aggregate also other machinings are carried out on the wood workpiece.

Abstract: A sawing apparatus (1) for cutting elongated timber (3) to form cut-to-size pieces, the apparatus including a horizontal processing line (2), through which the timber being processed is guided; transfer means for transferring the timber longitudinally along the processing line as well as machining means for machining the timber in the processing line. The machining means include at least one circular saw (9) whose sawing angle is adjustable and whose blade can be moved across the processing line for cutting the timber. According to the invention, the transfer means include an elongated magnetic rail (6) parallel to the processing line (2); at least two linear motor slides (7) arranged to be movable independently with respect to one another along the magnetic rail; and for each linear motor slide, a transfer gripper (4) connected to the slide and arranged to grasp the timber being processed for moving it longitudinally along the processing line.

Abstract: A device for machining, in particular, profiling tree trunks is provided, which includes two rotating machining tools (2, 3), whose axes (A, B) are essentially offset by 90° in relation to one another and are oriented in an essentially perpendicular direction to the longitudinal axis of the tree trunk. The first machining tool (2) and the second machining tool (3) are arranged in relation to one another in such a way that the first axis (A) and the second axis (B) lie on a common plane (E) and/or that their respective workpiece machining zones (I, II) at least partially overlap one another in the transversal direction of the tree trunk or adjoin one another.

Abstract: System, including apparatus and method, involves processing materials in opposite directions between two machines along a processing path.

Abstract: An adzer mount assembly having a slider box with a vertical slider and horizontal sliders. The vertical slider has an adzer which can be precisely positioned over a crosstie by hydraulic transverse movement of the slider box and vertical movement of the vertical slider. Because the horizontal sliders are mounted firmly to the frame of a railroad adzer machine the adzer is maintained firmly in a precise position over the crosstie during cutting, allowing precision planeing and surfacing of the crosstie.

Abstract: The present invention is an attachment fixture that is used in conjunction with a single-pass radius molding system to manufacture elliptical arches. The attachment fixture includes a vertical beam, a horizontal self-centering rack mounted at top end of the vertical beam, a swivel base attached at bottom end of the vertical beam, and a holding clamp attached to the swivel base.

Abstract: A tree cutter in combination with a self-propelled vehicle is disclosed for cutting underbrush and small free standing trees, such as, Cedar. The tree cutter is pivotally mounted at the front of the self-propelled vehicle, such as, a Four Wheeler in order to pivot upon a horizontal axis. The tree cutter provides a frame assembly that includes a discrete pair of triangular straight edge blades followed by a pair of circular blades that rotate in opposite directions caused by contact with the inner core the tree. The blade pairs are adjacent, oppositely disposed, and selectivly spaced apart as included in the frame assembly. The blade pairs act in synergy as they are driven into the tree by the vehicle, wherein the straight blades are suited for slicing into the soft outer vascular core of the tree, thereafter shearing force of the rotating blades is applied to the harder sapwood and heartwood that are engaged between the rotating blades.

Abstract: A blinds slat has a major portion being strips of bamboo and a minor portion being one or more pairs of wooden strips that are located at or near opposite side extremities of the slat. The resulting composite bamboo and wooden slat as exemplary resistance to warping and other deleterious effects of exposure to sun and moisture. Also disclosed is a method for producing the slats that is particularly advantageous in avoiding environmental harm, in that only small amounts of wood are used.

Abstract: A multi-purpose farm apparatus capable of being easily transported and which can be used to perform a variety of tasks. The multi-purpose farm apparatus comprises a trailer, a combination baler and wood splitter and a hydraulic system mounted thereon. The combination baler and log splitter apparatus includes a baling portion having a baling chamber and a first gib assembly comprising a pressure platen and is mounted for reciprocal movement within said baling chamber. The combination baler and log splitter apparatus further includes a log splitting portion having a second gib assembly comprising a splitting wedge and is mounted to said trailer for reciprocal movement. The first gib assembly and the second gib assembly are mechanically coupled to the hydraulic system for effecting reciprocating movement of the first gib assembly and the second gib assembly. The hydraulic system further comprises a hydraulic motor for driving various farm machinery.

Abstract: An apparatus for forming workpieces with rounded ends especially for use as webs in timber roof trusses. The apparatus includes a feeding system for feeding workpieces into a row of workpieces arranged along a path of travel and cyclically advancing the row along the path to a rotary cutter tool. A movable conveyor receives workpieces thereon and delivers each workpiece sequentially to a loading position adjacent the upstream end of the path of travel. A pushing device is at the upstream end of the path. A common drive shaft simultaneously powers the conveyor and the pushing device. A stop bar prevents movement of the workpieces in a direction generally transverse the path of travel while the cutter tool is shaping the ends.

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 tree trimming apparatus is provided for preparing a tree, such as a Christmas tree, for attachment to a tree stand. The tree trimming apparatus includes a raised platform supported by a plurality of legs. The platform also includes an opening for receiving the trunk of a tree. Below the platform is positioned a jaws assembly for affixing the tree in place. Meanwhile, the tree trimming apparatus includes a saw assembly for severing the base of the tree, and a drill assembly for drilling a recess into the bottom of the tree for receipt of the spike of a tree stand.

Abstract: A log processing machine and associate method employs one or more log guides to make joinery cuts in a processed log which has at opposed edges of the processed log the raw log's natural external contour. In a preferred embodiment of the invention, each log guide includes a straight edge and is attached to the processed log to create an artificial straight edge for guiding the processed log through the joinery machine. Prior to attachment, centerlines are marked on the log guide and the processed log, and the centerlines are aligned when the log guide is attached to the processed log. The processed log, with the log guide attached, is then moved through the machine with the aid of computer control while the straight edge of the log guide follows a fence. In this manner, the position of the processed log and its centerline are always known so that the computer can make the programmed joinery cuts with high precision.

Abstract: A method for producing a processed substantially continuous veneer ribbon is provided. The method comprises providing a plurality of debarked wood logs. A substantially continuous veneer ribbon is separated from each of said plurality of debarked wood logs. The substantially continuous veneer ribbons is conveyed to a plurality of storage locations. A system is provided for processing the substantially continuous veneer ribbons introducing a plurality of the substantially continuous veneer ribbons from the storage location to the continuous veneer ribbon process system. A processed continuous veneer ribbon is formed from the plurality of the substantially continuous veneer ribbons in the continuous veneer ribbon process system.

Abstract: A door preparation station includes a data processing control system that drives a display for presenting sequential series of menu selections that illicit operator information that is used as control data to configure the station for preparing a door for receipt of predetermined door hardware (e.g., locks, hinges, etc.) of one type or another. Based upon responses received at the menu selections, the processing system positions and operates various door preparation cutting and drilling elements for the door preparation procedure.

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: A log handling and cutting system which cuts logs into lengths, and allows for maximum use of fiber. The system includes equipment for singulating the logs, optimally removing the bark from the logs, scanning the true log image, cutting the logs to length, and sorting the cut logs arranged in a sequence of coupled operations. The logs are singulated using a dual quadrant singulation system to provide maximum singulation reliability, thereby allowing a single operator to attend to this process. Once singulated, the logs are fed automatically into a debarker where the diameter and volume are scanned and debarker-operating parameters are set for optimum bark removal. The log is then scanned, tree length, using a unique scanning system, which determines the true image of the log. This enables the determination by computer of the optimum bucking solution of the log as well as a proper sorting of the optimum random lengths.

Abstract: An apparatus for cutting dovetail joints comprises one or more trapezoidal mortising chisels mountable on a drill press, each trapezoidal mortising chisel having a trapezoidal cross sectional shape with a particular slope or “pitch” on its non-parallel sides. The trapezoidal mortising chisels are used to cut sockets in the tail board of a dovetail joints, where the sockets have a trapezoidal shape with sloped sides. A given slope can be selected for the sides of the sockets by selecting a trapezoidal mortising chisel having the given slope. A washer is also provided which is mountable about the tilt axis of a tiltable work table of the drill press. The washer has a set of holes located at an angle about the washer on either side of a reference radius, where the angle correspond to the slopes of the non-parallel sides of the trapezoidal mortising chisels.

Abstract: The chopping machine includes a crosscutting device for cutting the timber, a feeder for feeding the timber in its longitudinal direction to the crosscutting device and a splitting apparatus operated by a splitting cylinder for splitting a cut block of timber. The feeder includes two elongated supporting surfaces forming a substantially horizontal trough open in the upward direction, into which the timber to be treated can be placed. One of the supporting surfaces is connected to a power device for moving the supporting surface back and forth in the longitudinal direction of the trough, and the supporting surfaces are provided with directional holding elements arranged in the longitudinal direction of the trough to prevent the timber from moving in relation to the surface away from the crosscutting device.

Abstract: A cylindrical hollow blank 1 is separated longitudinally from inside an elongate block of wood by axial boring, the blank is dried and its outer and inner surfaces finished, eg by milling, turning and sanding, and a bottom piece (2, FIG. 2) and, if required, a lid (3, FIG. 2) are then added to form a container. A plurality of cylindrical blanks of different diameters may be produced from a single block. Two concentric core bits of different diameters may be used to bore a blank.

Abstract: A method and a system for forestry, in particular harvesting by means of a harvesting machine comprising a vehicle and a harvesting arrangement mounted thereon, is based on the fact that at least one position determining device (5), capable of determining the positioning of the harvesting machine by means of external wirelessly receivable signals, is arranged on the harvesting machine (1). A marking device adapted to apply a marking on pieces of timber obtained from trees is arranged on the harvesting machine. A control unit (8), suitably a computer, is arranged on the harvesting machine to control the marking device to mark the piece of timber with position information or a code corresponding thereto by means of position information received from the position determining device (5).

Abstract: Wooden framework building system consisting of semi-finished industrial product formed of glued boards. The construction according to the invention is made from only two bearing elements forming sill (1), purlin (2), ledge (4) and post (3). The cross-sections of the two bearing elements have each one side of the same size. The sizes for each particular case are determined by the requirements of the projects and plans, the statistical and physical aspects of the construction. To provide for an accurate, undismountable and resistant connection of the construction elements two dowels (9) are used per assembly. The lengths of the construction elements are determined from the module selected for the horizontal, respectively vertical elements.

Abstract: A precision multi-purpose machining apparatus for facilitating lathing, milling, drilling, sawing or routing operations typically using a rotary-type cutting tool. In a preferred embodiment the multi-purpose machining apparatus of this invention is characterized by an elongated support frame and a cutting tool mount cradle which is adjustably mounted on the support frame for receiving a cutting tool, such as an electric-powered DREMEL (trademark) rotary cutting tool. The support frame is capable of resting in a horizontal position, in which the cutting tool can be fitted with a cutting tool bit and the frame fitted with alternative workstock mounting attachments, to facilitate various lathing operations on a wooden or aluminum workstock. Alternatively, a saw table and saw blade can be removably mounted on the horizontal support frame and the cutting tool becomes a saw motor, the rotating shaft of which is connected to the saw blade by means of a drive belt, to facilitate various sawing operations.

Abstract: The subject basic method and its modifications are used to provide logs reconstituted from smaller diameter trees up to 12 inches diameter at their bases. The basic method is practiced using the following steps: 1. Cutting felled trees at cutting points into a plurality of segments which, naturally, are tapered, each segment having a length, a larger diameter end and a smaller diameter end, the length being in a range of random lengths such that the larger end diameter is in a range of 0.2 to 2.0 inches larger than the smaller end diameter, with 0.2 inch preferred; 2. selecting from the plurality of segments cut from one or more trees, a plurality of groups of segments which have smaller end diameters no more than ½ inch different; 3. joining segments from each group end-to-end to form reconstituted logs of optimum lengths for processing into wooden structural units. In one modification of the basic method, flawed portions are removed from the logs prior to cutting them into segments.

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 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 and apparatus for cutting baseboard molding to join two adjacent pieces in an inside comer provides a plate constructed with at least one patterned cutting edge having a contour which conforms to the front face of a baseboard molding. A plate support is adapted to carry the plate, and is in turn itself carried by a clamping apparatus of known type which typically combines features of a vise and a table. The baseboard molding to be cut is carried adjacent to the plate support within the clamping apparatus. Upper and lower angle boards may be used to support the baseboard molding to be cut at a slight angle from perpendicular to the blade making the cut, in a manner that allows a slight bevel to be made in the cut. A cutting device such as a router is then traced along the patterned cutting edge, thereby cutting off an end of a first piece of baseboard molding in a contour which corresponds to the face of a second piece of baseboard molding.

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 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 machine for forming a bottom rail and a valance for a window blind unit. The machine has a support member upon which a length of wood ultimately destined to be a bottom rail or a valance can reside while cutting occurs, and includes at least one laterally movable saw blade for cutting a selectable wood segment at a selectable angle up to 90.degree.. Such angular cutting permits a mitred junction of corners in a formed valance. The machine also has at least one wood boring device and at least one wood drilling device to provide for pull cord anchoring whereby cords are passed through a drilled aperture and knotted such that the knot is housed in a bored compartment. The machine can be incorporated and automated for inline inclusion with automated components of a window blind manufacturing and assembly system to provide finished bottom rails and packaged valance components for final installation at a site of use.

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 harvester is provided including a saw situated on a trailer for cutting purposes. A drive assembly is adapted for guiding logs past the saw for cutting the same.

Abstract: An automated system and process for managing building materials which requires a minimal amount of manual labor and supervision. The automated system and method are especially suited for precutting lumber used for building trusses and frames having predetermined specifications.

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: 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: 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 workpiece processing apparatus for processing a predetermined plate member and a sawing process method therefor. A workpiece processing apparatus which includes a workpiece mounting assembly for receiving a workpiece; a tool assembly having a tool mounting element configured for rotational and reciprocal motion, the tool assembly positioned adjacent to the workpiece mounting assembly; the workpiece mounting assembly being movable relative to said tool assembly to position the tool mounting element adjacent the workpiece; and a tool positioned in said tool mounting element and defining a longitudinal axis, said tool having a drilling portion and a cutting portion.

Abstract: A saw and router assembly (70) preferably including a hand-held rotary saw (50) and a router device (76) having a router bit (52) mounted immediately forward of rotary saw (50) and in alignment with the plane of the saw blade. In one embodiment, separate motors (72, 76) are provided to drive the rotating saw blade (50) and the router bit (52), and in another embodiment a single motor (102) is operatively coupled to drive both the saw blade (50) and the router bit (52). A method of substantially splinter-free cutting of workpieces (14) also is disclosed.

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.