Abstract: The present invention relates to a cutting head for use on a tree-felling vehicle. The cutting head comprises a tree-carrying frame with a cutting tool in the form of a rotor with helically extending cutting teeth. An arm for placement against a standing tree to be cut is pivotally mounted to the tree-carrying frame. A fluid ram is connected between the arm and the tree-carrying frame to bring it in engagement with the tree to be cut so that the rotor progressively cuts the tree and the latter enters the tree-carrying frame.

Abstract: A transverse cutter for fine papers consists of two mutually co-operating cutter rolls, of which one is directly driven by two electric motors. The upper cutter spindle is driven with the lower cutter spindle by a gear wheel driver at each end, which drive has an inclined set of teeth with constant pitch circle diameter and can be adjusted by axial displacement to be free from backlash. By means of a hydraulic clamping bushing provided between gear wheel and cutter spindle, a radial prestress between the gear wheels is obtained, which makes possible a backlash-free setting around the entire circumference.

Abstract: A machine for cutting animal tissue into pieces, comprises(a) a frame,(b) slicer means including slicers carried by the frame to rotate for slicing the tissue into elongated strands fed along parallel paths of widths determined by spacing of the slicers,(c) rotary cutter means including cutters carried by the frame to rotate and intercept the strands fed along said paths, and for cutting the strands crosswise thereof and at intervals predetermined by rotary spacing of said cutters, thereby to form said pieces having predetermined sizes.

Abstract: A holder for mounting a knife blade in a rotating roll. The holder comprises a plural pairs of clamp members for holding a knife blade with its interior edge against a reference in a rotating roll so as to adjustably position the cutting edge of the blade along the length of the roll. Each clamp member has opposed planar surfaces for contacting a segment of the blade and each clamp member is adjustable to position its planar surface in a direction generally perpendicular to the plane of the blade. Each clamp member is also adaptable to align its planar surface to the blade direction along the length of the roll as a clamping force is applied. When clamped, the blade contacting surface of at least one of each pair of clamp members has a fixed angle so as to resist a cutting force acting perpendicular to the plane of the blade at its cutting edge.

Abstract: A rotary drum shear including two drums rotating in the opposite direction to each other and each having a spiral knife on the periphery thereof so that material fed between the drums is cut by engagement of the knives brought by the rotation of the drums in which the knives are formed so that a distance from a rotational center of the drums to the engagement position of the knives is gradually reduced along an axis of the drums from a start point of the engagement of the knives.

Abstract: A log splitting machine having a disk-like blade rotatable about an axis and able to split a log in a single 360.degree. rotation about said axis. The blade has two parts, each of which performs a different function. The first part of the blade has a spiral-shaped cutting edge designed to sufficiently penetrate into an end of a log to be split so as to form a lengthwise crack in the log. The second part of the blade has a widening edge designed to separate the log into two pieces along the lengthwise crack with further rotation of the blade. The log splitting machine also includes: an adjustable backstop for accommodating logs of different length; a frame for supporting the blade, log and adjustable backstop; an electric motor for powering the blade through a 360.degree. rotation; and a hood covering the blade and motor, and a deadman control switch for increased operator safety.

Abstract: A rotor for cutting the loops or surface of a fabric having a plurality of segmented blades interconnected together to form a helix which when used to cut the surface of a fabric does not cause a rowing effect in the surface. The cutting blades in adjacent rows are positioned to be between two blades on any one row.

Abstract: A rotary web shearing machine equipped with pairs of rotating helical blades, the improvement for adjusting the clearance between the blades which makes it unnecessary to adjust the blades by their individual holders while the machine is stationary, but makes it possible to effect this adjustment without shutting down the machine. This is accomplished either by providing that one of the blades remains in a fixed axial position, while the companion cutting blade holding shaft is moved axially with respect to the fixed blade. This is accomplished by the novel mechanism on the end of the shaft of said blade mounted in a special bearing and housing and equipped with an adjusting screw and nut which permits imparting of axial motion to the shaft while it is in rotation if desired and thus effecting a variation in the clearance between the pair of helical blades eliminating the necessity of shutting the machine down and resorting to manual adjustment of the blade holders to effect proper clearance.

Abstract: An improved carpet beveling head wherein a pivotally mounted cutting blade is retained in operative engagement with a rotary cutter. The pivotal mounting, which facilitates adjustment of the device, is retained in such position by exertion of a securing end pressure thereon.

Abstract: A fingerling shear for shearing a length of wood in a plane transverse to the grain direction and for splitting the sheared length along the grain direction to form a plurality of fingerlings. The shear includes a planar shearing blade, supported for rotation about a generally vertical axis, the planar shearing blade including an involute cutting edge adapted to engage the elongated piece of wood during rotation of the blade and for shearing off a length of that piece of wood, and a plurality of splitting blades fixed to the lower surface of the planar shearing blade and spaced along the involute cutting edge, the splitting blades each including a leading cutting edge spaced from the involute cutting edge of the planar blade and extending tranversely to the lower surface, the cutting edges of the splitting blades being adapted to sequentially engage portions of the sheared length of the wood stock to sequentially split fingerlings from the sheared length.

Abstract: A device for cutting or felling trees comprises a rotating blade of uniformly increasing width in the shape of a partial, truncated cone mounted on the edge of a base disk. The blade does not extend completely around the base disk. Cutting is performed by attacking the tree at an angle and rotating the blade in the direction of increasing width.

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: An apparatus for slicing a meat product in which the cutting edge of a rotating involute slicing blade is advanced in synchronism with the feed of the meat product during the cutting of a slice from the meat product. There is also means for either mounting an involute slicing blade or arranging the cutting edge of an involute slicing blade.

Abstract: Helical shear blade cutter cooperable with a straight-edge bed plate for trimming fibers projecting from an article, including a shaft, and a blade in the form of a helical band wound edgewise on and about the shaft, the helical blade having a free edge forming a cutting edge from which a cutting face of the blade extends inwardly toward the shaft, the cutting face being formed with a serration to limit lateral yielding of the fibers as the fibers are being sheared by the cutting edge and the straight edge of the bed plate, the serration including saw-like teeth, respectively, having a short and a long flank, the long flank, in a condition wherein the shaft is disposed parallel to the straight-edge bed plate, forming a first angle with respect to the straight edge of the bed plate that is equal to the difference between a second angle formed by the cutting face of a blade without serrations formed therein and the straight edge of the bed plate and a third angle formed by the long flank and the cutting face of