Abstract: Apparatus for eradicating tree stumps comprising a rotary cylinder or drum having knives or teeth around its periphery. The teeth include both cutter teeth and chipper teeth. The primary purpose of the chipper teeth is to hog out and remove the fibrous wood material. The primary purpose of the cutter teeth is to break up and cut or slit the fibers so that they may be more easily hogged out by the chipper teeth.

Abstract: A cutter for edging plastic lenses to desired finished shapes and sizes including a main supporting wheel having an effective cutting edge formed of a multiplicity of circumferentially spaced replaceable cutting blades for clean chip clearance and ready accessibilty to individual removal sharpening and/or replacement as needed.

Abstract: A wooden workpiece is positioned on a saw table and introduced to a safety-back saw blade rotating in generally the same direction as the direction of introduction of the workpiece at the point of contact. The blade generates components of vertical and horizontal thrust of sufficient magnitude to self-feed either the workpiece or the saw, one relative to the other, at a rate compatible with the capability of the saw to cut the workpiece without generating sufficient thrust to propel the workpiece uncontrolled from the cutting and feeding operation.

Abstract: A device for fastening a chisel to a rotatable chisel block of a wood working machine by means of a clamping bolt engaging a fastening slot in the chisel block, the shank of said bolt extending through an elongated hole in the chisel and by means of a clamping plate holding the chisel and having a transverse extension supporting set screws which engage a rearwardly diverging safety face of the chisel wherein the transverse extension has safety cams engaging recesses in the fastening slot so that the transverse extension is locked in place in a radial direction.

Abstract: A chipping device including a disc-like member having a front face and the opposite face connected at its central region to a rotating shaft, said front face being provided with a spiral working surface which consists of main and auxiliary oblique surface portions extending along a spiral path from the central region of said disc-like member to the peripheral edge thereof, and being inclined relative to a plane perpendicular to the rotational axis of the disc-like member with an angle included between said main and auxiliary surface portions, said working surface having a plurality of cutting blades spaced from one another therealong, each of said cutting blades having main and auxiliary cutting edges substantially parallel to said main and auxiliary oblique surface portions, respectively.

Abstract: A disk type wood chipper having cutter knives disposed non-radially on a chipper disk to cut a slab of wood from a log and having guide means with ridges over which such slab is caused to slide so that the slab disintegrates into wood chips of substantially uniform size.

Abstract: A knife for a log profile cutting head assembly is detachably secured to a base including a chip directing gullett which in turn is secured to a standard cutting disc. The removable knife is shaped to include a mounting surface oriented to maximize resistance of the knife to forces encountered and includes rectilinear cutting edges which can be sharpened on conventional grinders. A grinding guide integral with the knife and positioned between one cutting surface and the mounting surface overlaps the interface of the knife and base to prevent chip jamming.

Abstract: A wood incisor for perforating the surfaces of a rectangularly cross-sectioned elongate board preparatory to preservative treatment is comprised of sets of paired horizontal and vertical drums arranged in a manner to provide a rectangular passageway of adjustable height and width for passing various sized boards, with each drum having a plurality of outwardly protruding cutting teeth. Each set of drums includes a fixed drum which is driven, and an idler drum which is slideable with respect to its associated fixed drum by actuation of positioning hydraulic cylinders to provide the adjustability of the passageway therebetween. Each of the positioning hydraulic cylinders is joined end-to-end with a cushioning hydraulic cylinder which is connected hydraulically to an accumulator tank containing pressurized hydraulic fluid and air. Thus the position of each idler drum relative to its associated fixed drum is responsive to the lateral force imparted to that set of drums by the board passing therebetween.

Abstract: A chipping apparatus for producing chips from entire trees, branches, shrubs, and the like comprises a rotatable cylindrical drum having a plurality of finger-like blades projecting from the surface. An axially parallel cylindrical counter-blade, having recesses on its surface which match the projecting blades on the first drum, coacts with the latter and is arranged to rotate in the same direction. The finger-like blades are adjustable as to how far they project from the surface of the cylinder and can be arranged on the latter in two arrow-shaped staggered rows or in axially disposed parallel rows.

Abstract: Machine for hewing small square timber with rectangular cross section from round stocks and comprising two mutually parallel cutter shafts on which cutting blades hewing the timber have been affixed, which blades form a 45.degree. angle with the cutter shaft and have been arranged to rotate synchronously and between which the small square timber piece is fed forward. Every second blade on one and the same cutter shaft is direct 45.degree. upwardly with reference to the cutter shaft and every second blade is directed 45.degree. downwardly with reference to the cutter shaft. The blades have been arranged to rotate synchronously in such manner that an upwardly pointing blade of one cutter shaft will be opposed to a downwardly pointing blade of the other cutter shaft adjacent to the square timber.

Abstract: A device for cutting, chipping and scraping compacted earth is disclosed. The apparatus is affixed to a prime mover for rotary engagement with the earth, whereby the compacted earth is selectively loosened and/or moved. The blade design disclosed is particularly useful for close accurate work around concrete forms and the like. Other embodiments are disclosed for large area grading.

Abstract: A wood-chipping cutter drum is rotatable about a drum axis and carries at least one elongated blade which has a cutting edge defining an orbit of rotation of the drum and which is radially displaceable in a blade direction relative to the drum axis. An adjustment device for aligning the cutting edge on an ideal desired orbit centered on the drum axis has an elongated alignment bar with a flat surface that can be brought into engagement with the cutting edge of the blade on a non-rotating drum to push it into a position lying exactly on the desired orbit. This bar is pivotal about an axis parallel to the cutting edge being adjusted and positioned relative to this cutting edge so that a line between the point of contact with the bar and the pivot axis for the bar forms a right angle with the displacement direction of the blade in the drum.

Abstract: A helical cutterhead for a wood planer for reducing noise level during planing by supressing vibration and sound radiation by having more than one knife blade engaged in the workpiece at any instant by satisfying the minimum condition of the formula L=.pi.D cot.phi./N is less than the workpiece width and in which L is the contact distance, D is the cutterhead diameter, N is the number of knife blades, and .phi. is the helix angle, and in which L is less than 4 inches.

Abstract: A cutter shaft for a wood machining apparatus is provided with at least one pocket in which a cutting knife is arranged between a pressure plate and a wear part with the cutting edge of the knife projecting beyond the peripheral surface of the shaft. A wedge located in a cutout of the shaft, intersecting the pocket, is guided in the cutout movable substantially in radial direction of the shaft and engaging with a wedge face, inclined at a predetermined angle with respect to the radial direction, a corresponding face of the pressure plate to press the latter against one side face of the knife and therewith the other side face against said wear part. The aforementioned angle between the two engaging faces is outside the self-locking range and at least 35.degree. and preferably about 42.degree.. The wedge is biased by a spring in radial outward direction and, during rotation of the shaft, also by centrifugal force.

Abstract: An elongated base is provided including elongated guide structure extending therealong. A router assembly is supported from the guide structure for guided movement therealong in a predetermined path and the base includes support structure for supporting an elongated log in position extending along a center axis generally paralleling and adjacent the aforementioned predetermined path. The router assembly includes cutting blade structure operative to form a convex generally semi-cylindrical surface on the adjacent side of a log supported from the support structure and the latter is operative to engage and support the log from the semi-cylindrical surface formed thereon after the surface is formed and the log is rotated 180.degree.

Abstract: A cutting machine to form a tenon at each end of a piece of timber, which tenon has opposite faces which are inclined both longitudinally and transversely relative to the piece of timber and forming hereinafter called skew tenon faces. This tenon cutting machine is of simple construction and uses a single and simple cutting head to produce both skew tenon faces at each end of a piece of timber.

Abstract: A support structure for a cutter bar for use in a forage harvester, the support structure adjustably supporting the opposite ends of the cutter bar and providing a convenient readily adjustable structure for supporting the central portion of the cutter bar to prevent movement of the central portion of the cutter bar relative to the cutting cylinder of the forage harvester and to afford adjustment of the position of the central portion of the cutter bar relative to the blades of the cutting cylinder.

Abstract: The head of a rotary cutting tool has an axially extending slot defining a flat, radially outwardly facing bottom surface and opposite undercut side surfaces, at least one of which makes an acute angle to the bottom surface. A cutter insert has a lower base portion in the slot and a cutting edge on an upper portion. The base portion comprises two wedging elements having opposite complementary tapers in width along their lengths to be relatively lengthwise adjustable for varying the width of the base portion. One wedging element is integral with said upper portion and is releasably maintained under radially outward force to be wedged between the other element and said side surface of the slot, thus holding the cutting edge at a distance from the tool axis determined by the lengthwise adjustment of the wedging elements.

Abstract: Shearing means of a brushwood cutter has a rotor with a plurality of sickle-shaped cutters, and a plurality of stationary, triangular tooth-like edge protrusions of a plate on which the rotor rotates. The curve defined by the cutting edge of each of the sickle-shaped cutters is such that the tangent at any tangent point of the curve is disposed at between 50.degree.-80.degree., and preferably between about 60.degree.-80.degree., with respect of a radial line passing through such tangent point and through the center of rotation of the rotor to secure a smooth operation of the rotor and to render the device capable of cutting relatively large pieces of brushwood.

Abstract: Apparatus for eradicating tree stumps comprising a rotary cylinder or drum having knives or cutters around its periphery. The cutters are mounted on rings which encircle the drum. The rings have circumferentially spaced mounting surfaces which are staggered relative to one another so that the cutters when secured to the mounting surfaces are themselves staggered for more effective cutting action. The drum is supported by two rotary hydraulic and/or electric motors having aligned output shafts which are connected to the ends of the drum to support and also to rotate it. The motors are carried by the arms of a yoke. Instead of two motors, there may be a motor at one end of the drum and a bearing at the other.

Abstract: A method of joining pieces of timber which comprises cutting arcuate grooves in the ends of two pieces of timber to be joined, adjacent grooves being separated by arcuate fingers, and adhering together the pieces of timber with the fingers of each piece being received in the grooves of the other piece. Also apparatus for carrying out the above method is disclosed.

Abstract: A circular saw adapted to produce chip-size material when cutting wood. The saw comprises a saw blade with teeth distributed about the circumference of the blade. The teeth are separated from each other in such a manner that in cutting a kerf, wood material is chiseled away in relatively large chip size, and such material is permitted to fall away from the kerf with minimal tendency of crushing or fracturing which would reduce the chip size.

Abstract: An adjustable router bit for cutting wood and plastics whereby the depth of the cut may be varied through an adjustment means comprising a guide plate having a circular rotatable locating plate mounted therein and secured thereto and the shaft of the cutter head eccentrically located on said rotatable locating plate. The eccentric position of said shaft on a rotatable plate provides a means for varying the depth of cut of the router bit blades in a stepless fashion.

Abstract: The device comprises a rotating drum having flails secured to the outer surface thereof. It is mounted between arms extending from a truck or the like and can be raised and lowered hydraulically. The device is driven over a pile of small trees lying on the ground, with the drum rotating so that flails engage the branches and leaves, etc., and detaches them from the trunks, it being understood that the flails engage between adjacent trees as well as engaging branches which might be extending upwardly from the trunks.

Abstract: This invention pertains to an adjustable dado head with positive positioning means in the assembly of the respective parts, making it impossible to misalign parts during assembly. Some of the positioning means also act as fasteners to hold the parts in assembled relation.

Abstract: Mechanism is provided for grooving or planing wood products either lengthwise or crosswise. Such grooving may be preparatory to the interdigital end to end interfitting of work pieces, commonly referred to as finger-jointing, or to simple planing which involves the continuous, uniform smoothing of a surface from end to end throughout its entire width, or to uniform longitudinal or transverse slotting. In any of these operations the cutting blade edges become dull and require resharpening from time to time. Conventionally the outer face of the blade which confronts the work is ground away for sharpening, and this has the unfortunate consequence of shortening the blade and thereby reducing the depth of cut. In accordance with the present invention this difficulty is overcome. The blade is formed with parallel, upwardly and forwardly sloping inner and outer faces, and the blade is sharpened by evenly grinding away the forward face of the blade.

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

Abstract: The tool holder is provided with a setbolt having a T-shaped cross section head including a rectangular end plate which fits into a T-shaped cross section slot in the associated tool providing ease of tool assembly and disassembly for servicing and sharpening. The tool holder and the tool are similarly shaped to provide a smooth exterior surface for the assembly which does not have cavities and pockets causing troublesome accumulations of chips and splinters.

Abstract: A tool for removing shavings from wood has a rotary main body portion provided with recesses extending inwardly from the peripheral surface and receiving elongated plate-like holders for flat blades made of sheet steel. Each blade is formed with openings for locating pins on the respective holder, and each holder is urged toward an internal surface of the body portion by a spring-biased wedge. Strip-shaped guide members are adjustably connected with the holders and are slidable in grooves machined into the internal surfaces of the body portion. A blade can be removed or inverted by moving the respective wedge away from the holder and by thereupon moving the holder axially of the body portion so that the blade can be lifted off the locating pins. The holders and the guide members have cooperating surfaces along which the holders can slide to thereby move the cutting edges of the blades toward or away from the axis of the body portion.

Abstract: A cylindrical rotary cutting head rotatable about a longitudinal axis having a plurality of helical slots in which a plurality of bits carrying cutting edges are retained in the lateral direction by means of set screws which bear against a "V" groove in an inclined face of the bit and in the vertical direction by plurality of cooperating serrations on an opposite face of the bit and in one slot wall.

Abstract: An edge machining tool in which two substantially identical tool members are mounted on a work spindle with each tool member having peripheral axial portions extending into notches in the other tool member. The aforementioned axial portions are provided with cutting edges and incline downwardly toward the other tool member so that in cross section the tool members define a "V" shape therebetween. At least one threaded adjusting spindle is provided which is held against axial movement on the work spindle and which engages the tool members with threads of respective hand so that by rotation of the adjusting spindle the tool members can be caused to move toward and away from each other on the axis of the work spindle.

Abstract: A method and apparatus for edge machining panels, especially panels having a hard glue layer thereon. Rotary edge cutting tools are presented to the panel edge to be cut. The tools having axially overlapping cutters thereon. There is moving of the tools by equal amounts in opposite directions during rotation of the tools to compensate for wear of the tools caused by the hard glue layer in the panels.

Abstract: A circular saw blade provided with a circumferential zone which extends radially inside the saw blade teeth and has a reduced thickness relative to the saw blade, whereby the noise generated at high operational speeds is considerably diminished.

Abstract: Method and apparatus for comminuting a tree stump in its entirety while still rooted in the ground, utilizing a large, heavy cylindrical roller or drum rotating at high speed and having cutters mounted on a peripherical surface thereof for engaging and comminuting the stump from the side thereof. The roller is journaled for rotation about a horizontal axis in a carrier attached to the front end of a heavy four-wheel vehicle which is driven hydraulically over the ground surface from a selfcontained power source such as an internal combustion engine. The hydraulic system which drives the vehicle also includes a hydraulic motor mounted on the carrier for rotating the roller. The roller, through the carrier, is mounted to the vehicle frame for swinging movement in a vertical plane relative to the ground and a hydraulic cylinder included in the hydraulic circuit is provided for effecting said vertical swinging movement.