Abstract: A wooden stake having a sharpened end with bevelled faces and having a striking end with bevelled faces is made on a novel machine by a novel method. Each bevelled face intersects a substantially planar face of the wooden stake and conforms substantially to a portion of a right circular cylinder. The machine has a sharpening drum carrying a multiplicity of removable cutting blades, which are mounted to a tubular wall of the drum, along an interior surface of such wall. The machine has an enclosure for the drum, a table mounted to the enclosure, and a fence mounted to the table at a suitable angle relative to a portal of the enclosure. A motor is provided for driving the drum. The table and fence are useful for guiding the stake through the portal, against the blades, which cut into the stake.

Abstract: A drum-type wood chipper having a chipper drum with knives mounted in openings with the drum wall. A chip basket is mounted within the drum behind each knife opening. The chipper knife is spaced from the drum wall at both the leading and trailing edges of the knife to define chip ingress and egress openings for the chip box. Cut chips pass into the chip box as the leading edge of the knife chips the infeed material; and the chips are carried by the box for subsequent discharge through the egress opening into a discharge chute.

Abstract: A drum assembly for wood chip slicing machines in which the slicing blades are clamped at the discharge openings in a rotary drum between clamping plates and the trailing ends of combination plates have wear plate and clamping functions. Studs anchored in the combination plates pass through the drum, and some of them additionally pass through the clamping plates so that when nuts on the studs are tightened, the combination plates, clamping plates, slicing blades, and the drum are secured together. The clamping plates have feet which engage the drum to serve as a stop to keep the cutting edge of the blades at a predetermined setting. The studs are preferably sloped in the trailing direction from their inner ends.

Abstract: In a rotary cutter block each blade (14) is clamped in an inwardly divergent recess (12) by a wedge (16). The wedges (16) may be clamped simultaneously against their associated blades (14) by application of high pressure grease at any of one or more grease nipples (52, 54) which actuates by hydraulic plungers (22) in the bases of the wedge recesses (12). The angle of the wedges (16) is such as to provide a taper-lock between the wedges (16), the blades (14) and the recesses (12), which means that after depressurization the cutterblock can be stored or moved from one machine spindle to another without slackening of the wedges. The invention is of considerable advantage in reducing the amount of setting-up time involved in setting and grinding the blades of a rotary cutter head, since one pressurization is sufficient to tighten all the wedges simultaneously and to the same degree.

Abstract: A wood cutting knife is provided for producing wood chips or flakes. The knife includes a central cutting member, and two wing members positioned on opposite sides of the central cutting member. The height of the wing members determines the depth of cut of the cutting knife, including the central cutting member. Also provided is a wood processing machine for supporting such cutting knives which includes a plurality of anvil members configured to interact intimately with the cutting knives. Also provided is a breakaway feature between the cutting members and a supporting surface defined by the wood processing machine. The supporting surface is relatively smooth, and the cutting knives are mounted to the surface by weldments. If a cutting knife encounters unprocessable foreign material such as metal or rock, the knife breaks away from the supporting surface at the weldment connection, and severe damage to the supporting surface or machine is avoided.

Abstract: A cylindrical cutter head for a wood planing machine has mounted in its cumference a number of disposable knife blades which are clamped in place with the help of centrifugal wedges in lengthwise grooves. Between each disposable knife blade and each centrifugal wedge there is positioned a bracket of L-shaped profile consisting of a base strip which is immovably attached to the cutter head body and a clamping strip bearing against the knife blade, this clamping strip being elastically deformable to a small extent. By means of a conformal relation of a profiled region of the disposable knife blade with a corresponding profiled region of the clamping strip, the disposable knife blade is held firmly in position when clamped in. After loosening of the centrifugal wedge, the disposable knife blade can be easily withdrawn in a lengthwise direction and can be replaced with accurate positioning.

Abstract: An apparatus for processing wood, comprising a cylindrical drum mounted for rotation about its longitudinal axis, a cutting member, means for mounting the cutting member upon the circumferential surface of the drum such that its cutting edge is positioned a first distance from the drum surface, means for rotating the drum such that the cutting element passes along a circular path concentric to the surface of the drum, a pair of parallel ring sections each having a first and a second end and a substantially uniform cross section, and having an arcuate configuration along their length substantially conforming to the circumferential surface of the surface of the drum, the first ends of the spacing elements being positioned laterally adjacent to the path of travel of the cutting member, and extending in parallel relationship in front of the cutting member such that a gullet is defined in front of the cuting edge by the cutting member, the ring sections, and the surface.

Abstract: A wood cutting knife is provided for producing wood chips or flakes. The knife includes a central cutting member, and two wing members positioned on opposite sides of the central cutting member. The height of the wing members determines the depth of cut of the cutting knife, including the central cutting member. Also provided is a wood processing machine for supporting such cutting knives which includes a plurality of anvil members configured to interact intimately with the cutting knives. Also provided is a breakaway feature between the cutting members and a supporting surface defined by the wood processing machine. The supporting surface is relatively smooth, and the cutting knives are mounted to the surface by weldments. If a cutting knife encounters unprocessable foreign material such as metal or rock, the knife breaks away from the supporting surface at the weldment connection, and severe damage to the supporting surface or machine is avoided.

Abstract: A domestic ice shaver comprises a box-like base frame unit having a top surface beyond which a drive shaft rotated by a built-in motor protrudes, a shaver case unit mounted on the base frame unit and having a shaved ice piece discharge port to which a shaving blade faces, a rotary blade unit fixed to the upper end of the drive shaft within the shaver case unit and having, on its top, a cylindrical hopper, and a cover unit mounted to the shaver case unit to cover an upper portion thereof and having a central openable lid. There is provided on the outer surface of the shaver case unit a shaving blade block detachably disposed rearwardly of the shaved ice piece discharged port. The shaving blade block has a front edge portion mounted with the shaving blade confronting the shaved ice piece discharge port.

Abstract: A double-drum wood chipper for obtaining wood chips of uniform thickness from logs. Each one of a pair of oppositely rotating, hollow, open ended drums is provided with cutting knives. An aperture through the drum walls is located near each knife for reception of the wood chips. Two knife patterns on the drums are disclosed. The parallel-cutting edge of each knife makes an angle of about 150.degree. with the cutting edge of each of two laterally positioned, integral cross cutting knives.

Abstract: A device for chipping wood with the aide of a combination of a cylinder rotatable about its longitudinal axis and provided with one or more protruding, longitudinal knives and a counterknife disposed along side the cylinder wherein along at least 3/4 of its length, the cylinder has a surface with transverse grooves and, viewed in the direction of rotation, in front of each knife, a slot for temporarily collecting and conducting away the chipped wood.

Abstract: A knife cylinder for processing a continuous web has a plurality of knife blades mounted therein by metallic bellows cylinders located in grooves which receive the knife blades. At least one force transmission element is likewise located in each groove between the blade and the bellows cylinders, or between the bellows cylinders and an opposing wall of the groove. Such elements contain pressure medium passageways connected with a pressure medium generating assembly for internally pressurizing the bellows.

Abstract: Apparatus for chunking wood slabs and the like. The apparatus includes a rotary drum mounted on a frame for powered rotation thereon. The drum carries two linear arrays of teeth at diametrally opposed drum positions, the teeth in the two arrays being disposed at alternate, axially offset positions. A notched anvil in the apparatus is mounted on the frame for reciprocating between first and second positions where the anvil is positioned to intermesh with one and then with the other tooth arrays. The anvil is shifted between its first and second positions, in synchrony with drum rotation, by a pair of flanges carried at opposite ends of the drum, parallel to one another and in planes non-normal with respect to the drum's rotational axis, and a pair of rollers mounted adjacent opposite ends of the anvil for engaging the inner surfaces of the associated flanges.

Abstract: The cutter head is adapted to cut material such as wood, frozen meat, vegetables and the like into pieces of predetermined length, width and thickness. The cutter head has a rotor body of a cylindrical shape formed with at least one axially extended piece-receiving cavity that has a leading side; and a knife unit that includes a mounting section with a knife section projected outwardly from a flat side of the mounting section. The knife section has a flat leading side and a flat trailing side which intersect at an acute angle to form a cutting edge. The knife unit is supported in the rotor body with the flat side of the mounting section in a plane parallel to a plane extended diametrically of the rotor body and through the cutting edge when the leading side of the knife section is arranged opposite the leading side of the piece-receiving cavity.

Abstract: A method and apparatus of processing logs prior to further processing in lumber, plywood, pulp or veneer mills. In the apparatus, logs are deposited into a cradle formed between a rotating cutter drum and support rollers which guide the log against the cutting drum and rotate the log about its longitudinal axis in a direction opposite to the rotation of the cutter drum, at a controlled speed slower than the drum. Constant rotation of the log reduces horsepower requirements by minimizing the length of each cut made by cutter assemblies extending from the cutter drum. Logs are discharged by lowering the guide rollers with respect to the cutter drum. A second embodiment is disclosed including a pair of cooperating rollers providing a variable sized cradle adjacent to the cutter drum. Means for delivering logs to the apparatus and for removing material cut from the log are disclosed. In a single operation, logs are debarked, rounded, reduced to any desired diameter, or completely reduced to chips.

Abstract: A rotatable cutter spindle for cutting chips of predetermined length has a supporting body having an axis, and a plurality of cutters mounted on the body in spaced relationship to one another and inclined relative to the axis of the body. Each of the cutters includes an acute angle with the axis and has a leading and a trailing end and defines cutting angles which differ from one to another of these ends. Each of the cutters has alternately arranged radially outer cutting edges and radially inner cutting edges of which the radially inner cutting edges are formed by grooves which are provided in the cutters and which have a width that increases from the leading end toward the trailing end of the cutter. The radially outer cutting edges are arranged at a first common circular surface, whereas the radially inner cutting edges are arranged at a second common circular surface.

Abstract: A rotating cutterhead projects forward from a tractor or other suitable vehicle and fells trees as the tractor is moved over land to be cleared. The tree-felling cutterhead rotates in a direction such that its leading face moves upward and then rearward to kick the butt of a felled or falling tree upward and then move it rearward onto an apron. The apron forms the bottom of a flared throat leading to a chipping cutterhead. An overhead live feed roll or a swinging feed rake positively feeds each tree rearward along the apron to the chipping cutterhead. Upright cutterheads may be carried at the sides of the flared throat to delimb a tree, or at least to crush the limbs inward, as the tree is moved rearward by the upper feed roll or rake.

Abstract: A cutting blade is mounted on a support by being clamped between a supporting portion of the support and a pressing portion of a pressing lever which is mounted on the support for pivoting about an axis which extends parallel to the elongation of the cutting blade and has an actuating portion which is acted upon by at least one actuator which urges the pressing lever towards its clamping position. A resilient mounting portion is connected to the support and to the pressing lever and mounts the pressing lever for the abovementioned pivoting. The mounting portion has enlarged foot and connecting zones which are respectively received and held in respective compatible recesses of the support and of the pressing lever, preferably in undercut grooves thereof. A part of the support, the pressing lever, the mounting portion and the actuator may constitute a unit which is interchangeably mounted on the remainder of the support.

Abstract: A cutter block arrangement for wood chipping machines has blades mounted in blade holders that are fastened to holding ledges by means of a tongue and groove connection. The holding ledges are mounted in a groove of the cutter block body by means of fastening screws. The blades have cutting edges and are positively inserted in the blade holders, while the holding ledges are supported relative to the cutter block body by means of adjusting screws counteracting the fastening screws so as to adjust a certain projection of the cutting edges of the blades.

Abstract: A whole tree chipper composed of a housing encasing a rotor formed by a pair of substantially identical axially aligned frustro-conical hollow discs having their minimum diameter ends connected together and provided with at least one knife on each disc is disclosed. A slot extends through each disc adjacent each knife, for directing chips cut by the knife through the disc into a chip chamber located at the adjacent axial end of the housing. The rotor is rotated about the said axially aligned axes of the pair of discs and wood in the form of whole tree sections, is advanced longitudinally through an inlet spout which extends through the peripheral wall of the housing toward the conical faces of the discs forming the rotor. A debris chamber extends circumferentially of the rotor in said housing between the inlet spout and a debris outlet.

Abstract: A waferizer having a rotatable cylindrical head from which a plurality of waferizing knives project for slicing wood stock, and rollers mounted on the head which have a plurality of longitudinally extending radially projecting blades for incising the face of the wood stock to a depth equal to the depth of cut of the knives so as to produce wafers of uniform width.

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: A cutting machine to sever elongated wood particles or fiber masses to a predetermined length in one self-feeding and continuous operation. Said cutting machine reduces naturally formed and partially processed wood into particles of controlled length and cross-sectional dimension. A rotating spiral cutting edge mounted on a drive shaft is of varying radial length increasing from zero on one end to a radial length greater than the cross-sectional dimension of the wood or fiber to be sheared. In back of the shearing section a separate degradation spiral is situated that gradually decreases back to a minimal radial length on the other end. An anvil is provided over the length of the shearing section against which the rotating cutting edge shears the wood. In the back or degradation section, a casing in the shape of a truncated cone is fitted loosely around the decreasing spiral. Wood is fed parallel to the drive shaft into the front end of the apparatus.

Abstract: A cutter for removing chips from wood has a rotary carrier whose peripheral surface is formed with rearwardly and inwardly inclined recesses for permanent magnets which attract plate-like blades having cutting edges which extend radially outwardly beyond the peripheral surface of the carrier. The blades consist of magnetic material and are attracted to the permanent magnets. The magnets have dovetailed projections extending into complementary grooves of the carrier. Each blade is urged against the respective magnet by a spring-biased wedge in the respective recess, and the inner edge of each blade bears against a plate-like abutment which is attracted to the respective magnet.