Abstract: A band saw blade can include a body extending in an endless ribbon, a cutting edge with cutting teeth, a back edge opposite the cutting edge, and a series of notches formed in the back edge. The notches can at least include first, second and third different notches. The notches can be arranged in a repeating pattern and each can be continuously arcuate. The notches can extend into the back edge a first depth. The notches can be separated from one another by a first distance. The notches can have respective radii of curvature and the radii of curvature can be different from one another.

Abstract: A band saw blade may include a cutting edge defining a cutting plane and configured to engage a workpiece during movement of the band saw blade in a cutting direction, and a back edge located on an opposite side of the band saw blade relative to the cutting edge and defining a repeating back edge pattern. The back edge pattern may include, in sequential order, a ramp-down section defining an acute ramp-down angle relative to a plane parallel to the cutting plane, a first ramp-up section defining a first acute ramp-up angle relative to the plane parallel to the cutting plane, an intermediate section oriented at least substantially parallel to the cutting plane, a second ramp-up section defining a second acute ramp-up angle relative to the plane parallel to the cutting plane, and a spacing section oriented at least substantially parallel to the cutting plane.

Abstract: A saw blade comprising cutting teeth, having at least one of chip-limiters protruding from the teeth or secondary teeth in the gullets of the cutting teeth configured to mitigate the blade from over-feeding. The chip limiters and/or secondary teeth provide that only a limited portion of an object that the saw blade encounters during cutting falls below the cutting tips of the cutting teeth. The chip limiters and/or secondary teeth also assist the cutting teeth in cutting.

Abstract: A method for producing carbide and diamond cutting tool inserts adapted to compensate for braze-induced warp is provided. In this method, the anticipated warpage of the insert from brazing is considered prior to cutting the insert from a PCD and carbide disk and the cutting path for the insert is adjusted to compensate. The adjusted cutting path creates an insert shape that, after warping as a result of the brazing process, will conform substantially to the originally intended insert or cutting tool shape. Also, a method of providing relief on the bottom surface of a brazeable insert is provided. Further, tools produceable by these methods are disclosed, such as a diamond edged rotary cutting tool with a substantially sinusoidal rake face and cutting edge.

Abstract: A sabre saw blade, in particular for metal applications, with a serration that has at least one first tooth spacing and one second tooth spacing, characterized in that in at least a partial region with three first and three second tooth spacings which are always disposed in a directly alternating sequence, the serration has at least two tooth shapes, and at least one tooth is embodied as a roof-shaped tooth having a first tooth back portion with a first clearance angle and a second tooth back portion with a second clearance angle with said tooth back portions being arranged at an obtuse angle and one behind the other in a cutting movement direction, and at least one tooth is embodied as a standard tooth with a straight tooth back, arranged alternatingly, wherein the first tooth spacing is between 10% and 30% shorter and the second tooth spacing is between 10% and 30% wider than 1.81 mm.

Abstract: There is provided a reciprocating saw blade having a tapered tang stem. The tang has a tang portion with at least three outer edges and a stem portion with at least three outer edges. The profiles of the tang portion and particularly the stem portion are such that they facilitate the effective and efficient engagement of the saw blade with any of numerous different keyed or keyless chucks of reciprocating saws. The tang/stem profile also advantageously provides for increased strength for resisting failure and/or fatigue stemming from a cutting force applied to the saw blade during use.

Abstract: A saw blade in which a tooth pattern comprising a first teeth group A and a second teeth group B each having a plurality of set teeth is repeated, wherein the saw blade has at least one or both of the following conditions: a condition in which a tooth height of the second teeth group B is lower than that of the first teeth group A, and a condition in which a set amount of the second teeth group B is smaller than that of the first teeth group A, and wherein the first teeth group A has at least one spur tooth.

Abstract: A knife is disclosed for cutting crop materials, and includes a base portion having an interior edge and a pair of end edges. The base portion has an exterior region opposite the interior edge and has opposite major faces. The knife further includes a plurality of teeth extending from the base portion, with each tooth being defined by a perimeter edge. The perimeter edge of the tooth includes a leading edge portion and a transition edge portion extending between the leading edge portion of the tooth and an adjacent tooth. The leading edge portion is formed by a leading edge surface lying substantially in a plane that is oriented at a first bevel angle with respect to one of the major faces. The transition edge portion is formed by a transition edge surface that is oriented with respect to one of the major faces at a second bevel angle.

Abstract: A saw blade that includes a bandsaw body and a plurality of unset teeth having a generally uniform height. The teeth are disposed on the bandsaw body. At least some of the teeth have a cutting extension that extends above the uniform height of the teeth.

Abstract: A structural band saw blade is provided having a cutting edge defined by a plurality of teeth spaced relative to each other, and a back edge located on an opposite side of the blade relative to the cutting edge. Each tooth of the band saw blade defines a tip, a rake face formed on one side of the tip, a primary clearance surface formed on the opposite side of the tip relative to the rake face, a secondary clearance surface formed on the opposite side of the primary clearance surface relative to the tip, and a tertiary clearance surface formed on the opposite side of the secondary clearance surface relative to the first clearance surface. The primary clearance surface defines a first acute relief angle, the secondary clearance surface defines a second acute relief angle less than the first acute relief angle, and the tertiary clearance surface defines a tertiary acute relief angle greater than the first and second relief angles.

Abstract: A disk-shaped tool, in particular, a circular saw blade, includes cutting teeth (11, 12, 13), in which the cutting teeth (12, 13, 14) are divided into groups (11). Each first tooth (12) of a group (11), in the cutting direction (15), protrudes radially farther outward with its cutting edge than the following tooth or teeth (13, 14) of the group (11).

Abstract: The present invention contemplates a stump grinding wheel that provides a user of a stump grinder with visual access through the wheel. The wheel comprises first and second opposing surfaces joined by a common edge. The edge is shaped in the form of a polygon and includes several intermittently spaced apart gaps positioned between successively positioned extensions that protrude radially outwardly from the first and second surfaces. The wheel further comprises a first, conventional, centrally positioned hole formed through the first and second surfaces for coupling the wheel to a motor; a second set of holes for permitting cutting teeth to be mounted to the wheel; and a third set of holes formed through the first and second surfaces and positioned between the first hole and second set of holes. The third set of holes provides an additional window through which a user may visually inspect a stump while it is being machined.

Abstract: The present invention provides a band saw blade 1 which has less difference in cut areas of workpieces with small diameters and cut areas of workpieces with large diameters, and is capable of weakening the cutting resistance and preventing unintentional bending of a cutting line and noise generation when a workpiece, which cannot easily be cut, is cut. The band saw blade 1 has, on the back surface 5 of a body 3 thereof, a wavy back surface 5 which is changed periodically or irregularly. A plurality of imaginary curves L1,L2 running parallel to the wavy undulation provided for the back surface 5 are formed opposite to the back surface. Moreover, a plurality of saw teeth 2,4,6,8,10 having tooth tips which substantially describe the imaginary curves L1,L2 are formed. Thus, constant areas can be cut by the band saw blade 1 regardless of the diameter of the workpieces required to be cut. Moreover, the cutting resistance can be weakened, and unintentional bending and noise can be prevented.

Abstract: A method of preventing a tooth from continuously breaking in a band saw blade, comprises the steps of: moving the band saw blade to a longitudinal direction and moving the band saw blade to a cutting direction perpendicular to the moving direction of the band saw blade so as to cut a work; bringing a projecting portion disposed at a rear position of a surface of relief at the back of a tip in a saw tooth broken into contact with a bottom portion of a cutting groove in the work when the tooth breaking is generated in the saw tooth of the band saw blade; and limiting a cutting amount of the following saw tooth, thereby preventing the following saw tooth from breaking.

Abstract: A strip-shaped or reciprocating knife has at least ore elongated cutting blade (1) provided with a plurality of cutting teeth (2) and intermediate cutting gaps (5), the cutting teeth (2) being provided with additional, finer teeth (8). In order to achieve from beginning to end a smooth and clean cut of the goods to be cut, the additional teeth (8) are produced by providing opposite tooth spaces (9) on both sides of the knife, arranged so close to one another that sharp teeth (12) are formed between the spaces. The additional teeth provided on both sides of the knife form a sharp cutting edge which is symmetrically arranged on both sides of the knife and extends over the cutting teeth (2).

Abstract: A band saw blade having relatively extended pitch patterns of eight of more teeth exhibits relatively low noise and vibration during cutting operations, and substantially uniform tooth loading characteristics. The band saw blade defines set patterns within each pitch pattern, and each set pattern is defined by an unset leading tooth followed by a plurality of offset trailing teeth. Each tooth within each set pattern defines a pitch between the respective tooth and the preceding tooth in the cutting direction of the saw blade, and an accumulated pitch between the respective tooth and the preceding tooth of like set direction in the cutting direction of the saw blade. The ratio of pitch to accumulated pitch for each tooth within each set pattern increases from one tooth to the next in the direction opposite the cutting direction of the saw blade for substantially uniformly distributing the chip load over the teeth of the saw blade.

Abstract: A metal cutting bandsaw blade includes a strip and a recurring group of teeth projecting therefrom. The recurring group of teeth has a setting pattern and a height pattern. The setting pattern has at least three units selected from the following setting types: (a) unset teeth (b) teeth set to the right (c) teeth set to the left. The setting pattern includes at least one of each of the setting types. The height pattern has at least two selected from the following height types: (a) high teeth (b) low teeth. The height pattern includes at least one of each of the height types. The total number of teeth in the recurring group is the product of the number of setting units and the number of heights units. The number of setting units is incommensurable with the number of height units. The number of teeth set to the right in the recurring group is equal to the number of teeth set to the left. All of the set teeth in the group have substantially equal setting widths.

Abstract: This invention concerns a saw blade (S) including at least one part with fine teeth (6) and at least one part with grouped teeth (7). The part of the blade with grouped teeth (7) includes a number of groups (4) of, for example, V-shaped indentations (10) in the blade (S), each pair of indentations defining a saw tooth (1). Each group (4) comprises an even number of indentations. In an arbitrary group (e.g. indentations one, three, five, etc.) a first imaginary line A), drawn between alternate tips (11) or base, is a straight line which forms a small angle (a) in relation to the longitudinal direction of the saw blade, the tips or bases being evenly distributed along the line. The invention also concerns a method and a device for producing a saw blade with grouped teeth by means of a tool comprising a punch and a punch die. The punch for cutting out the saw teeth is completely symmetrical and has substantially V-shaped tips. A saw blade blank is fed through the tool and cut in at least two stages.

Abstract: A log band saw blade for primary wood processing, consisting of a series of different modules (M1, M2, M3 . . . ) or identical modules, each including a number of teeth (D) having variable characteristics determined in accordance with all the relevant technical criteria. In each module, the tooth portion located in front of the lowest point has a variable shape (FV) while the tooth portion located therebehind has a constant shape (FC).

Abstract: A saw blade having a basic body (1) and unset teeth (2.sub.1, 2.sub.2, etc.) having recurring cycles of teeth, each cycle having at least one group of teeth with at least three teeth, and where tooth height decreases from tooth to tooth while tooth width simultaneously increases. The teeth (2.sub.1, 2.sub.2, etc.) are formed symmetrically with respect to a longitudinal center plane (8) extending through the basic body (1). The effective cutting edges or cutting-edge sections (6.sub.1, 12.sub.1, 14.sub.2, 12.sub.2, etc.) of each tooth (2.sub.1, 2.sub.2, etc.) are formed by a jutting-out or protruding cutting edge, the inner section (6.sub.1, 6.sub.2, etc.) of which runs approximately perpendicularly with respect to the longitudinal center plane (8) and which is adjoined externally by a phase (7.sub.1, 7.sub.2, etc.) inclined toward the basic body (1) The widest tooth (2) in the group of teeth has an angle greater than 90 degrees formed between phase (7 ) and flank (10).

Abstract: A reduced resistance saw blade. The saw blade of the present invention has at least two or more groups of sawteeth, the groups of the sawteeth include a first group having a plurality of the sawteeth wherein the tips of the sawteeth are substantially situated on a first imaginary curve which changes in a periodic or irregular cycle, and a second group having a plurality of the sawteeth wherein the tips of the sawteeth are substantially situated on a second imaginary curve parallel to the first imaginary curve. Also provided is a saw blade which includes sets of the sawteeth having reversed set patterns, thus providing a saw blade which is capable of restraining deviation of the cut, maintaining the balance of the lateral sets of the overall saw blade. The saw blade of the present invention includes a plurality of sets of teeth, each set comprising unset, right set and left set teeth, wherein reversed set patterns with the same number of teeth are provided alternately.

Abstract: A saw is designed to support and drive saw blades such that the cutting edges of the saw blade will travel in an orbital path. The cutting edge of the saw blade is formed with first and second portions of its length which are angularly inclined with respect to one another and extend from opposite sides of an apex such that when the proximal end of the saw blade is driven the first and second portions of the saw blade will orbit in opposite directions. The saw teeth which are formed in the first and second sections are angularly inclined away from the apex so that cuttings are displaced from the apex toward the proximal end and from the apex toward the distal end of the saw blade. Two saw blades are mounted side-by-side with their proximal ends mounted on eccentric shafts which are spaced 180.degree. from one another.

Abstract: A new type of cutting blade with handle for making designs in food products, such as hot dogs, to facilitate the addition of other materials to the food product, and to facilitate cooking and decoration, comprising an elongated thin metal blade with handle, said blade having a top and bottom edge and cutting width, and said blade being bent in a plurality of alternate directions so as to form an unique design on cutting, the bottom edge of the blade having a cutting edge with a plurality of indentations which prevent the blade from forming a complete cut along the bottom edge of the blade, and a method for using the new blade to form unique designs along food material, such as hot dogs, and facilitate the addition of other material thereto.

Abstract: A radial saw blade is formed of a flat disc having peripheral edge including circular peripheral portions and recessed stepped peripheral portions. The peripheral edge includes spaced apart, radially inwardly extending notches. Each notch has a flat, plate-like insert brazed to an L-shaped seat in the notch facing the direction of rotation. Each insert has cutting edges formed on side edges of the inserts which extend axially from both sides of the disc and on a crown edge extending radially from the peripheral edge of the disc. The side and crown edges each have beveled surfaces extending away from the direction of rotation to define a relief angle. A first set of the notches are positioned about the circular peripheral portion of the peripheral edge. The inserts in the first set of notches make the primary cut in both linear and non-linear passes.

Abstract: The present invention is a rotary tool cutter tooth having a readily replaceable cutting portion and a tool employing the tooth. The tooth consists of an elongated shank for mounting the tooth on the tool body with a cutter element being bolted to the forward end of the shank. Preferably the back face of the cutter element is vertically grooved to receive the forward end of the shank so that the two are precisely aligned and any forces which tend to rotate the cutter element during use are resisted. The face of the shank that adjoins the cutter element may further be provided with a negative or inverted step which engages a corresponding step across the groove of the cutter element. These steps interlock to resist forces which would tend to translate the cutter element radially outward when in use. The cutter element may be made of a tool steel or other hard alloy, whereas the shank is typically formed from a mild steel.

Abstract: Cutting apparatus (15) for cutting-out stacks of sheet material such as fabric has a guide (55) for a reciprocating cutter (16), driven by a drive mechanism (18) arranged in a housing (19). The housing (19) is mounted on a carrier (8) extending above a cutting-out table (2). The cutter (16) is driven from an eccentric (38) arranged on a rotary member (36). A counterweight (41) is driven from a second eccentric (39) with an eccentricity (e) which is oppositely directed to the eccentricity (e) of the first eccentric (38) driving the cutter (16), to compensate for inertial forces generated by the mass of the cutter (16). The cutting apparatus (15) is free of turning moments acting substantially in a plane lying in the axis (36) of therotary member (32), by arranging the eccentrics (38, 39) in a turning plane (E.sub.1) on the two rotary members (32, 33), the members (32, 33) lying one behind the other with respect to the cutting direction (34) of the cutter (16) and rotating at the same speed as each other.

Abstract: A saw blade exhibits a foundation (1) of spring steel, which exhibits along one edge projections (3), each separated by a chip space (2), each carrying a seat (4) each for a cutting material plate (6, 6') and each forming a tooth back (5). The cutting material plates (6, 6') exhibit a cutting edge and a true rake (7) and are arranged at an effective rake angle (.gamma.), while each two adjacent cutting material plates (6, 6') form a pitch (t) with the mutual interval of their cutting edges and/or cutting tips. The cutting material plates (6, 6') are attached with varying pitch (t) and with varying effective rake angle (.gamma.).

Abstract: A substantially triangular-shaped multi-directional rotary saw blade suitable for arcuate and plunge cutting is disclosed.

Abstract: The article, such as a circular saw tool or a gear wheel, has a visco-elastic synthetic-resin damping layer between, on the one hand, a portion of the body of the article which is integral with, or securely attached to, a work region adapted to interact with another article, and, on the other hand, a counter-element which extends parallel thereto. The damping layer is arranged in the interior of the article in a region covered by an outer member integral with or securely connected to the body. The parts between which the damping layer lies are connected together by the damping layer in a manner which permits shear stresses to occur in the damping layer.

Abstract: The article, such as a circular saw tool or a gear wheel, has a visco-elastic synthetic-resin damping layer between, on the one hand, a portion of the body of the article which is integral with, or securely attached to, a work region adapted to interact with another article, and, on the other hand, a counter-element which extends parallel thereto. The damping layer is arranged in the interior of the article in a region covered by an outer member integral with or securely connected to the body. The parts between which the damping layer lies are connected together by the damping layer in a manner which permits shear stresses to occur in the damping layer.

Abstract: An improved band saw blade for cutting hard ferrous or non-ferrous articles, wherein the band saw blade comprises an elongated, flexible, continuous ribbon having a back edge and a toothed edge, the ribbon having a sinoidal pattern in the plane of the ribbon, the wavelength and pitch of the ribbon being selected to enhance the cutting of the article but is selected to avoid chatter based on the rate of speed of travel of the ribbon, the pressure applied to the ribbon during the cutting and the average length of the cut to be made in the article to be cut. A method of constructing a band saw blade with a sinoidal pattern including the steps of successively squeezing portions of the saw blade or ribbon alternately near its back edge and near its toothed edge, whereby the blade is formed with a continuous wave pattern.

Abstract: A vibration damped rotary disk is provided and includes a pair of circular disk panels disposed in side-by-side superposed relation. The panels include shallow concentric and opposing annular recesses formed therein of a radial extent greater than one-half the radial extent of the panels and spaced inwardly of the outer marginal portions of the panels. A filler of mechanical vibration dampening and absorbing material is disposed in and fills the recesses and the outer marginal portions of the disk panels disposed outwardly of the recesses are secured together. Preferably, circumferentially spaced rivets are utilized to secure the outer marginal portions of the disk panels together and those opposing surfaces of the disk panels disposed radially outwardly and radially inwardly of the recesses have a thin layer of Teflon interposed therebetween, the disk panels being constructed of metal.