Abstract: Provided are a system and method for cutting boards into two board pieces, even ending one of the board pieces at a first side while travelling transversely on a conveyor and even ending the other board piece at a second side of the conveyor.

Abstract: Surface structured decorative boards (1) having a first and a second opposite edge (1I and 1II respectively). The board (1) include an upper side decorative surface (2) an upper side surface structure and a base layer. The structure is comprised by at least two surface grades (10) forming a decorative surface pattern on said upper side, said pattern being applied in predetermined fixed positions (P) on the first and the second edges (1I and 1II respectively). The first edge pattern positions (PL) and the second edge pattern positions (PR) are matched so that the pattern continues over the first and second edges (1I and 1II respectively) of adjacent boards (1).

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 process for sub-dividing a laminated flooring substrate into a plurality of laminated flooring planks and a system therefore are described. The process can include providing a laminated flooring substrate having a decorative pattern on a core wherein the decorative pattern can include a plurality of indicators, and independently detecting the indicators with a plurality of detecting devices, each assigned a respective indicator. The detecting devices can individually obtain the position of the detected indicators and a control unit can align a separate saw blade per each position detected. The system includes a cutting unit with individually adjustable saws or an alignment device configured to align the laminated flooring substrate with the saws, to cut the laminated flooring substrate along positions relative to the detected indicators, for example, in the center thereof or off-set therefrom.

Abstract: An automated saw system for cutting a crooked piece of lumber with a mitered end and a length. The saw system includes a saw for cutting the piece of lumber, a lumber feed conveyor for feeding the piece of lumber to the saw, and a sensor that measures a deviation amount by which the piece of lumber deviates from an idealized straight piece of lumber. A controller communicates with the sensor to adjust either the saw or the conveyor in response to the detected deviation amount so that the piece of lumber is cut to correspond to a cut of the idealized straight piece of lumber.

Abstract: A log merchandising apparatus includes feeding and staging feeders and a plurality of pivoting overhead truss-mounted saws. The saws are travelling saws, reversibly and independently movable along the longitudinal axis of the log by means of a rack and pinion drive and lineal bearings.

Abstract: A method and apparatus for steering saw blades which includes an arbor rotatable about a rotation axis. Saw blades are mounted on the arbor in such a manner that the saw blades rotate with the arbor and are angularly adjustable in relation to the rotation axis of the arbor. A rigid guide assembly is provided having a plurality of guides each of which accommodate one the saw blades, such that movement of the guide assembly angularly adjusts the saw blades in unison. A leading edge of each of the saw blades is positioned along a common alignment plane. A support is provided for the guide assembly. The support has an underlying pivot axis spaced from and substantially perpendicular to the rotational axis of the arbor. This pivot axis is on the alignment plane such that the leading edge of each of the saw blades remain positioned along the alignment plane as the guide assembly is pivoted to move the guide assembly to alter the angular positioning of the saw blades.

Abstract: A method and apparatus for steering saw blades which includes an arbor rotatable about a rotation axis. Saw blades are mounted on the arbor in such a manner that the saw blades rotate with the arbor and are angularly adjustable in relation to the rotation axis of the arbor. A rigid guide assembly is provided having a plurality of guides each of which accommodate one the saw blades, such that movement of the guide assembly angularly adjusts the saw blades in unison. A leading edge of each of the saw blades is positioned along a common alignment plane. A support is provided for the guide assembly. The support has an underlying pivot axis spaced from and substantially perpendicular to the rotational axis of the arbor. This pivot axis is on the alignment plane such that the leading edge of each of the saw blades remain positioned along the alignment plane as the guide assembly is pivoted to move the guide assembly to alter the angular positioning of the saw blades.

Abstract: The present invention discloses a log sawing system comprising multiple cutting blades. The multiple cutting blades are positioned to cut laterally or perpendicular to the centerline of the log which is to be cut. The logs are transported into cutting position using some type of log positioner. The multiple cutting blades are rotatably mounted on an arm which is pivotally mounted on a shaft in groups, being driven by an electrical or like motor, all of which are mounted onto a platform positioned adjacent to the log to be cut. Hydraulic lifters are used to partially rotate the saw blades into the cutting position adjacent the log. Means utilizing a computer and lasers are provided to develop a log cutting solution to best utilize the logs.

Abstract: The invention is related to a method and an apparatus for dissecting a log into boards, the log being adapted to be displaced on a longitudinal conveyor in a longitudinal direction. For determining the board length, it is prior art to cut the log at its periphery by means of a cross-cut saw prior to dissecting the log into boards. As the cross-cut saw is stationary, the determination of the cutting depth is effected by displacing the log transversally. In the case of larger cutting depths, the log must be displaced back in the transversal direction after effecting the cross-cut so that a board of desired thickness may then subsequently be dissected from the log by means of a band saw. During that back displacement, it may happen that the log slips on the longitudinal conveyor so that the dimensional accuracy is lost.

Abstract: Previous methods of bucksawing logs slow the throughput of a sawmill in that the conveyor line is stopped while a given log is bucksawed to length. The present invention provides a method for bucksawing a log which improves the throughput speed. The present invention provides a method and apparatus for bucksawing a log comprising the steps of a) advancing the log endwise along a tilted infeed conveyor; b) positioning the log on a tilted feed roll above the level of an outfeed conveyor while advancing the log; c) measuring the advance of the log while on the tilted feed roll; d) stopping the log at the desired length; e) sawing the log to produce a forward log segment; f) moving the forward log segment onto a tilted outfeed conveyor while advancing the remaining log segments. The present invention further provides a method and apparatus for bucksawing a log comprising utilizing a second multi-positional cut-off saw in the bucksawing station.

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 log processing system contains a row of tipple units for supporting a log to be cut into programmed lengths by saws swing-mounted on carriages selectively positioned on a truck extending beside said row. Each tipple unit has two oppositely extending wings each independently moveable between upwardly sloped and downwardly sloped positions. The tipple units at the cutting positions have their wings lowered out of the cutting range of the saws. Log hold-down arms operate from the carriages in conjunction with the saws.

Abstract: The invention is a method and apparatus for processing an Engine Wood Product member. The member is moved to a home position in a driving unit and the length of the EWP member is automatically measured by moving the EWP member from the home position while engaging the EWP member with a measuring assembly including a measuring wheel having a smooth hard facing, the facing contacting the EWP member. The member is moved to a first cutting position and cut to a predetermined length. Activating one or more position sensor devices, at least one of the position sensor devices positioned such that the EWP member engages the position sensor device while the member is in the home position, the length of the member is determined as it is moved from the home position.

Abstract: A log processing apparatus is disclosed for processing a log with tapered sides, the log processing apparatus including a frame assembly, and infeed guide assembly including upstream and downstream pairs of guides configured to grip and center the tapered log along a travel path. The log processing apparatus may also include a saw assembly positioned adjacent the guides and configured to cut the tapered log in a cutting plane perpendicular to the travel path.

Abstract: An Improved Ground Cover Cutter is disclosed. Also disclosed is a device that permits the user to cut normal home garden green waste and other plant material into plugs that can then be used as a highly efficient and decorative ground cover. The disclosed cutter may be configured to be portable and further may include a collapsible platform that is configured to permit the cutter to rest atop a receptacle, such as a standard trash can, while in use. The preferred device and method provide the ability to cooperatively use a standard off-the-shelf hand circular saw to cut the plugs. The device preferably also includes a saw chamber for reducing the emission of environmental noise and dust. It is a further feature of the device to include a feed stabilizer means for restrain materials being fed down the device's feed tunnel and into the cutting chamber.

Abstract: An apparatus for sequentially and automatically cutting a piece of dimension lumber at a number of predetermined angles to produce a building component, such as a rafter or truss web or chord, with composite or compound angles, is disclosed. The apparatus includes infeed and outfeed tables tiltable about a longitudinal axis and equipped with fences along which a workpiece moves longitudinally via moving devices. Clamps hold the workpiece at different positions relative to a cutting station during a cutting operation. A cutter, which for example includes a circular saw blade, is mounted for a positioning movement about a vertical axis at the cutting station, as well as for vertical movement to cut a workpiece at a predetermined composite or compound angle.

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 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: A rotating log saw clamp having a clamp infeed section and a clamp outfeed section located adjacent a log saw blade. The clamp infeed section and clamp outfeed section are coupled for rotation together with the log during sawing of at least a portion of the log by the log saw blade.

Abstract: There is provided a device for sawing logs to a predetermined length which includes a log lead-in support member, a log support frame, a log cutting station and a log collection deck. The log support frame includes a front end, a rear end, opposite sides and supports a conveyor. An upwardly inclined conveyor moves a log lengthwise through the support frame to the log cutting station which includes a stop gate section, a sawing section, and a debris discharge conveyor. The stop gate section is positioned between the conveyor and the sawing section to set the log for proper timing into the cutting station and to align the butts when a plurality of logs is cut at the same time. A cutting station positioned at the front end of said support frame comprising a housing and a chain saw having a cutting bar on said support frame pivotally mounted to rotate 360.degree.

Abstract: A portable saw table for a portable saw or router comprising a table base for supporting a workpiece, and a slide track support pivoted about a pivot axis to the table base. A slide is movable with respect to the support and slide tracks are mounted on the slide. A protractor is movable with the support and has indicia about the periphery thereof. An indicator on the table base is associated with the indicia of the protractor. The pivot axis and the protractor have common axis. A lock lever is pivoted on the protractor and a threaded shaft extends through the support and is threaded into the lock member for causing the lock lever to frictionally engage the table base and lock the support and slide in angularly adjusted position relative to the table base and longitudinally adjusted position relative to the support.

Abstract: A saw system includes a support table (12) and a first elongate tower assembly (50) pivotally mounted relative to the table (12). A second elongate tower assembly (60) is also mounted for rotation relative to the table (12) and is spaced from the first tower assembly (50). The second tower assembly (60) is moveable towards and away from the tower (50) by roller wheels (42 and 43) which engage on guide rails (34 and 36) to enable the second tower assembly (60) to be moved. The second tower assembly (60) and the first tower assembly (50) are rotatable to set the tower assemblies at a predetermined angle with respect to the table (12) and carry saws for making a cut in the workpiece. Ram assemblies (130 and 160) on each tower enable movement of the workpiece downwardly relatively to the saws so that the workpiece is driven past the saws and cut by the saws.

Abstract: A rotating log saw clamp having a clamp infeed section and a clamp outfeed section located adjacent a log saw blade. The clamp infeed section and clamp outfeed section are coupled for rotation together with the log during sawing of at least a portion of the log by the log saw blade.

Abstract: The saw trimmer is used for trimming lumber pieces. The saw trimmer comprises a conveyor for longitudinally moving lumber pieces across the saw trimmer. The lumber pieces are transversely disposed on the conveyor with reference to the longitudinal direction. A plurality of adjacent drop saw assemblies are located above the conveyor. Each drop saw assembly comprises a circular saw blade parallel to the longitudinal direction, a corresponding hydraulic motor and an actuated positioning system for selectively raising and lowering the saw blade. Each lumber piece is held during the trimming thereof by a retaining assembly comprising a plurality of spaced-apart and parallel elongated rails positioned above the conveyor and extending longitudinally. These rails engage the upper surface of the lumber pieces. A plurality of rolls are positioned under a corresponding rail with an upper edge emerging above the conveyor and are driven into rotation. These rolls engage the bottom surface of the lumber pieces.

Abstract: A portable saw table comprising a saw track pivotally supported on a saw table. A protractor is mounted on the saw track and an indicator-indexer plate is mounted on the saw table. A hand operated locking mechanism is provided. The saw table includes laterally extensible side members and longitudinally extending end members.

Abstract: A knife changing method is disclosed which is applicable to a veneer lathe equipped with a knife carriage to which a veneer peeling knife is clamped with its cutting edge set at a predetermined elevation relative to the knife carriage. The knife carriage is shiftable to at least one knife changing position and the lathe has formed in at least one of its side frames a knife passage adjacent the knife changing position of the carriage. In the knife changing operation, the knife carriage is firstly shifted to its knife changing position, where an old knife is released from the knife carriage by undoing knife clamps. The freed knife is laterally moved away from the veneer lathe through the knife passage in the side frame. Then, a new, or reground knife is moved laterally into the veneer lathe through the knife passage to a predetermined knife installing position on the knife carriage, where the new knife is fixed to the carriage by activating the knife clamps.

Abstract: A traversing circular saw device comprising a saw blade assembly mounted onto a cradle to receive a number of logs to be cut into sections. The saw blade assembly comprises a circular saw blade mounted onto an extension arm which is contained within a pivoting arm sleeve. The width of the cradle is greater than the diameter of the saw blade. The saw blade is pivoted down into the cradle by a first piston, and the blade is then extended across the cradle by a second piston.

Abstract: An ending apparatus for positioning elongate objects comprising, in combination, object singulating equipment for separating a plurality of elongate objects in an inlet area into single objects while moving the objects in a first direction to an outlet area, and object support rollers intermediate the inlet and outlet area for supporting a separated, single elongate object. The object support rollers are adapted to move the elongate object in a second direction toward a reference surface independently of the object's movement in the first direction on the singulating device. The reference surface stops movement of the elongate object to establish a pre-determined position for the elongate object. Establishing the position of the object permits more efficient handling during further processing.

Abstract: A machine for cutting off the waste end portions of semi-circular or semi-elliptical members used for framing windows. The curved members are held in the desired fixed relationship by clamping members and saw mechanisms are transversely movable adjacent each end to perform the cutting action. When two halves are to be cut simultaneously they are clamped in transversely spaced relationship so the ends are cut during one pass to insure that the two halves will accurately form a full frame assembly.

Abstract: There is disclosed saw mill apparatus for cutting root end defects from lumber pieces and cutting such pieces to desired sizes including a generally conventional scanner for recording detailed contour data for each piece as it is moved by a plurality of chain belt conveyors transverse to its longitudinal dimension; the scanner is followed by a root end trim saw unit extending over the root end edge of such conveyors including a motor driven rotating circular saw blade articulated to move down into or up out of the path of lumber pieces and also slidably mounted to be moved over a range of about 24 inches in one half inch increments thereby to cut away a defective portion of a lumber piece identified by the scanner and a conventional mill computer; following the end trimming saw unit is an even ending apparatus with generally conventional ending rolls to transport lumber pieces lengthwise as necessary to butt the root end against a guide fence.

Abstract: Apparatus for loading or picking, temporarily storing and placing one of two side-by-side cut boards from/to a lugged conveyor is described. The apparatus preferably includes a circulating wheel oriented transversely to the lugged conveyor with the wheel having a number of arcuately spaced bins, each capable of temporarily storing a cut board, or board piece, of any crosscut length. The wheel is rotated such that its angular velocity tangent to the lugged conveyor is approximately equal to the linear velocity of the lugged conveyor. The number of bins provided in the wheel is determined by the number of boards that will have been already loaded onto the conveyor at the loading station before the pick operation can be temporarily halted by a decision of the board scanner that a cut-in-two operation will be performed.

Abstract: A machine for cutting logs to provide a dovetail log joint is provided with a number of saw legs which are slidably mounted on carriages, some of which are movable in order to adjust the angle of inclination of the saw blades. This machine permits dovetail tenons to be formed at either end of a log to provide both inside and outside corner joints. All of the necessary cuts can be effected while the log is held in a fixed position, it is only necessary to move the log longitudinally of itself in order to form the tenons at opposite ends. C-clamps are also provided for applying pressure to the log joint during assembly of the joint.

Abstract: The drive means (3) is arranged directly on the tool (2) and can be moved together therewith about a plurality of axes (A, B, C and D). The drive means is provided with a tool holding means for automatically delivering or receiving tools in a tool magazine (5) which is arranged above the region of operation of the tool (2). In that way a plurality of tools can be operated with a single drive means, wherein the tool guidance, workpiece forward feed and interchange of tools can be fully automated and programmed.

Abstract: A woodworking machine comprising at least one tenoning-and-mortizing spindle associated with a length-cutting device and a pivoting roller table consisting of a roller carriage and an associated table plate receiving the workpiece and pivoting about said carriage around a vertical axis is designed in such a manner that in spite of the pivotability of the roller table or of its table plate the same length of the oblique window wood will be obtained in any angular position of said roller table or its table plate. For that purpose the invention provides that the vertical pivot axis of the roller table or its table plate be located on the straight line of intersection between two parallel planes of which one is parallel to the direction of advance of the roller table and includes that side of the saw blade of the length-cutting device which faces the workpiece, whereas the other plane includes one of the two longitudinal sides of the workpiece, the two planes subtending an angle >90.degree.

Abstract: Apparatus for cutting miters on two side trim members which are bonded to the respective portions of the edge face of a panel (such as a table top), and on a head trim member which is to be bonded to the portion of the edge face of the panel between the side trim members has a first support for the panel with one or more abutments for the panel and one side trim member, and a mobile abutment which is reciprocable along the portion of the edge face between the side trim members to cause the generation of a signal when it reaches the other side trim member. The signals are used to stop the motor for adjustment of one of two mirror symmetrical sawing machines which are used to sever the trim members by moving their blades at right angles to the plane of the panel. The head trim member is mounted in a clamping device which carries adjustable stops and adjustable jaws for engagement with spaced-apart portions of the head trim member at a level above or below the panel.

Abstract: A plurality of limbs or the like are secured together, to form a limb bundle (B). The limbs are positioned in a space defined laterally between a pair of posts (34, 38 or 80, 82) on one side (14) of a frame (12, 78) and a second pair of posts (36, 40 or 36', 40' or 86, 88) on the opposite side (16) of the frame (12, 78). A windlass (50, 52) is supported at the upper ends (46, 48) of the posts (34, 38 or 80, 82). A cable (60, 64) extends from the windlass (50) either downwardly and around the girth of the limb bundle (B), and then hooks on itself (62), to form a noose around the limb bundle (B), or it extends from the windlass (50) down to and around a pulley (68) then upwardly and over a mid portion of the limb bundle (B'), and then down to a dead end connection (66) at a lower portion of the frame (12). In either case, tightening of the cable (60, 64) imposes a squeezing force on the limb bundle (B, B').

Abstract: A process is described, with the aid of which panel-type workpieces to be manufactured from a panel blank may also be provided with flat face and/or end face bores in the course of their manufacture. For this purpose, the panel blank is displaced transversely to the cutting plane into a stop position, the flat face bores pertaining to one of the workpieces to be manufactured are subsequently made in the one flat side of the panel blank. To make the further flat face bores for the workpiece, the panel blank is then transported further in a clocked manner through predetermined paths in the same direction and bored after each advance. Upon completion of all of the flat face bores, the panel blank is displaced in a clocked manner in the opposite direction into predetermined positions, fixed after each advance, and lastly severed.For the end face boring, the panel blank is displaced in the direction of advance through a path corresponding to a side length of a workpiece and subsequently clamped and severed.

Abstract: The present invention relates to a method for sawing a tree trunk and for treating a slice of wood of uniform thickness sawn off the trunk. In the first method, the trunk dimensions and shape as well as the biological quality of each section of the trunk both in the lengthwise and the crosswise direction are defined along with the sawing process, and this information is taken into account while treating the trunk. This method is characterized in that the production programme, which comprises various articles, i.e. product components, of different measures and qualities, is recorded (a) before the actual sawing process. The trunk is sawn into two halves in the middle (b), or the heart slice is removed therefrom (i). The longitudinal quality borders of each trunk half are defined on the basis of the sawn face and recorded (c), and further the shape and size of the trunk half are measured and recorded (d). The quality information and the measuring results are combined (e).

Abstract: An apparatus for cutting a veneer piece into equal sections includes a main conveyer for feeding the veneer piece in a direction transverse to the wood fibers thereof and a cutter disposed in the main conveyer for cutting the veneer piece along the feeding direction thereof. A straightening unit is provided at the upstream position of the cutter for controlling the orientation of the veneer piece on the main conveyor in such a manner that the fibers precisely extend along the transverse direction of the main conveyer, the unit including a plurality of retractable stoppers capable of projecting from the main conveyer to stop the veneer piece for a predetermined time. A multiple conveyer system extends from the downstream end of the main conveyer to transport the sections of the cut veneer pieces to a single feeder at different timings, the feeder conveying the sections to an apparatus for forming seam plates.

Abstract: A plurality of limbs or the like are secured together, to form a limb bundle (B). The limbs are positioned in a space defined laterally between a pair of posts (20, 24) on one side of a frame (12) and a second pair of posts (22, 26) on the opposite side of the frame (12). A windless (44) is supported at the upper ends of the posts (20, 24). A cable (54) extends from the windless (44) either downwardly and around the girth of the limb bundle (B), and then hooks on itself, to form a noose around the limb bundle (B), or it extends from the windless (44) down to and around a pulley (76), then upwardly and over a mid portion of the limb bundle (B'), and then down to a dead end connection (70) at a lower portion of the frame (12). In either case, tightening of the cable (54, 54') imposes a squeezing force on the limb bundle (B).

Abstract: A device for machining elongate rods has a feed means defined by a track and a plurality of V belts which feeds the rods in an uninterrupted succession one behind the other in a feed direction transverse to their longitudinal axes. The track defines a an arc of a circle adjacent the machine tools which is parallel to the circular machining path of cutting elements of the machine tools.

Abstract: A high-throughput, high-end-product-recovery log-bucking system featuring continuous log travel. The system includes a flying-saw, log-bucking mechanism in combination with an upstream scanner which is capable of producing data related to a log's "sweep." A computer which is interposed the bucking mechanism and the scanner makes a decision at least partially based on log-sweep data, as developed by the scanner, to determine the optimum bucking position(s) along a log's length to obtain the maximum recovery of usable end-product.

Abstract: A method and apparatus for joining fittings, particularly wooden stair rail fittings. The apparatus includes a mitre jig and a double slot jig. The mitre jig has a base with a curved bed for supporting the fitting to be cut. A wall is used with the base that has on it a scale for indicating the angle of incline of the stair being worked with. A recess in the wall accommodates a saw and a slot in the wall receives the saw blade. The fitting is placed on the base with its seam aligned with the particular indication for the stair's angle of incline. A saw is then used to cut the fitting. The double slot jig is used to cut slots into the ends of fittings for joining them. The double slot jig has a base, a tray, a double-bladed cutting apparatus, and a frame. The tray supports the fitting to be cut and is movable on the base. Appropriate stops are used to correctly position the fitting on the base and to limit the movement of the tray on the base. A drill with double circular blades can be used.

Abstract: Cutting horizontal, cantilevering objects of splittable material, such as de-barked tree trunks and the like is carried out with the aid of a guided, endless circulating saw chain (10), the upper cutting part of which is moved from below and upwards through the object. The lower edge portions of the cut surfaces at the cut are allowed to bear against each other under the action of the bending moment of the cantilevering object, while the return portion of the saw chain in the cutting area is kept free from the cut surfaces. The saw chain is guided by a chain guide (12) extending curvilinearly under the object and guides the return part of the chain. The chain guide and the guided return part are both outside and below the object during the whole of the cutting operation, while the upper cutting portion of the chain runs straight between the end points of the curved portion of the chain guide.

Abstract: A cutter system for pipe casings and the like, including a generally "C" shaped cutter assembly body having an always open side entry and exit area leading into the centrally located cutter area with an annular trackway extending an exemplary 290.degree. about the operative center of the cutter system. A cutter sub-assembly is carried on the trackway for back and forth movement of an exemplary 110.degree. in each direction with the sub-assembly carrying two, directly opposed rotating cutter blades which cut the pipe casing as the sub-assembly is moved to and from on the trackway. The two blades travel in each direction a minimum of one-half their arcuate spacing difference and preferrably less than their arcuate spacing difference, producing a full 360.degree. cut. The cutters are radially moved in and out by a reciprocating yoke assembly. The cutter body assembly is pivotally mounted onto a telescoping boom attached to for example a work vehicle.

Abstract: A method of and apparatus for assembling barge fenders which includes chain conveyors for conveying the workpiece through a series of work stations. Spaced pairs of saws are positioned to make angled cuts. Downstream of the saws drilling mechanism provide holes in the workpiece for insertion of threaded bolts which are used at the assembly station to fasten a plurality of workpieces together.

Abstract: A method and an apparatus for cutting boards from tree trunks in which transverse cuts are made in a tree trunk which extend into the trunk a predetermined depth and thereafter longitudinal cuts are made into said trunk, which cuts pass through a plane passing through the inner ends of the transversal cuts, whereby the boards are separated from the trunk. The apparatus for cutting boards from tree trunks comprises guide rollers for advancing a trunk in a longitudinal direction, saw units adapted to move in a vertical and in a longitudinal directions to produce the transverse cuts and saw blades movable in the longitudinal direction to produce the longitudinal cuts after the transversal cuts have been made.