Abstract: A disk blade has an outer perimeter, a first side wall, a second side wall, and a central hub. A plurality of fingers extend laterally at an angle ? from said first side wall. The fingers preferably comprise metal round bars curved to form part of an elliptical geometry inserted at a perpendicular angle to a vertical angle of said disk blade. The bars are arranged at locations equidistant around said disk blade and are disposed at a depth x from said outer perimeter of said disk blade. Preferably, the depth x is at least ?one (1) inch.

Abstract: A saw blade (4) for a machine operating with adjacent saw teeth traveling in two opposite and parallel directions comprises a blade substrate, teeth (16), and tooth necks (30) formed at the periphery of the substrate for holding the teeth (16) in place. Each tooth neck (30) has a protection surface (34), which is located in a plane that is parallel to the plane of the blade substrate (8), for protecting the tooth (16) against impact with any part of said adjacent saw blade. Each tooth (16) is located on the respective neck (30) in such a way that the tooth (16) is displaced from the protection surface (34) and from the adjacent saw blade in a direction normal to the plane of the protection surface (34).

Abstract: A saw blade including a base and a plurality of teeth extending generally outwardly from the base. At least one of the plurality of teeth comprises a first and a second portion. The first portion includes a cutting tip having an initial rake angle and the second portion includes a cutting tip having a second rake angle greater than the initial rake angle. The second portion is disposed closer to the base than the first portion.

Abstract: A cutting tooth (101) of a cutting device is disclosed as part of a closure device for opening a container covering for the first time. The shape of the cutting tooth (101) with a blunted tooth tip (1011) with a cutting edge (1012) leads to improved cutting results, wherein the container covering is notched or nicked. Here, each cutting tooth (101) has a robust tooth tip (1011) without edges which cuts into the container covering as a result of rotation of a cap of the closure device, wherein the cutting device is moved along with it.

Abstract: A planar band saw blade having an outer cutting edge with a plurality of saw teeth also includes sets of secondary teeth placed in cutout portions along a centerline of the band saw blade. The secondary tooth sets provide portions within the body of the saw blade that provide additional cutting action that reinforces the primary outer cutting edge of the blade. The band saw blade may include teeth on each parallel edge and the interior tooth sets in each cutout portion alternatively point toward opposite edges.

Abstract: A band saw blade includes multiple saw teeth having a straight tooth and right and left set teeth, and also includes a gullet portion provided between the saw teeth. A rake surface of each of the saw teeth is provided with a chip curler portion formed into an arc shape at an entire range of approximately 90° to form a chip generated at the time of cutting a work into a small rolled shape before the chip comes into contact with a bottom portion of the gullet portion. A chip non-contact surface to be kept out of contact with the chip is formed to have either a flat surface or a convex surface between the chip curler portion and the bottom portion of the gullet portion, and a dent portion is formed between the chip non-contact surface and the gullet bottom portion, the dent portion recessed from the chip non-contact surface in an opposite direction to a moving direction of the band saw blade in order to increase a radius of a concave curved surface constituting a back side of the gullet bottom portion.

Abstract: A saw blade (4) for a machine operating with adjacent saw teeth traveling in two opposite and parallel directions comprises a blade substrate, teeth (16), and tooth necks (30) formed at the periphery of the substrate for holding the teeth (16) in place. Each tooth neck (30) has a protection surface (34), which is located in a plane that is parallel to the plane of the blade substrate (8), for protecting the tooth (16) against impact with any part of said adjacent saw blade. Each tooth (16) is located on the respective neck (30) in such a way that the tooth (16) is displaced from the protection surface (34) and from the adjacent saw blade in a direction normal to the plane of the protection surface (34).

Abstract: A method of cutting grooves having a trapezoidal profile into an airport runway. Each of the grooves has a base of a first width, an open top of a second width and sloped sidewalls. The grooves are cut by the single pass of a rotating blade. The blade used to cut the trapezoidal shaped grooves has a plurality of cutting teeth. Each of the cutting teeth has a wide body section, a face surface, a bottom surface and side surfaces that extend from the face surface to the wide body section. The wide body section has a width equal to the maximum width of the groove being cut. However, the face surface has a width equal to the minimum width of the groove being cut. The result is a cutting tooth that cuts smoothly and maintains its trapezoidal shape as it wears.

Abstract: A cutting tooth element for a cutting blade. The cutting tooth element has a body. The body has a forward surface, a rearward surface and a peripheral edge surface that extends from the forward surface to the rearward surface. The peripheral edge surface has a constant width that is equal to the width at the bottom of the groove that is to be cut. The body of each cutting tooth has a thickened area between its forward surface and rearward surface. The thickened area has a maximum width equal to the width at the top of the groove that is to be cut. The body has sloped side surfaces that extend from the thickened area to the forward surface, rearward surface and the peripheral edge surface. The resulting shape of the cutting tooth causes the cutting tooth to retain its cutting profile as it wears.

Abstract: A jigsaw blade having a clamping end and, adjoining it, a blade-like working body that has a row of saw teeth that is inclined in relation to the clamping end, a spine on the opposite side from the row of teeth, and a tip at the front is therefore safer, easier to use, has higher performance, and is more precise. The jigsaw blade has two tooth row regions of the row of saw teeth that are inclined at different angles in relation to the clamping end.

Abstract: A hole saw has a cup shaped body with a base, and a cylindrical wall with an extending cutting edge. An arbor extends from base. A plurality of teeth are formed on the cutting edge. The teeth having a repeating first and second tooth form. The first tooth form has a rake face and relief face defining the cutting edge. The rake face and relief face are at a desired angle. A first gullet is continuous with the first rake face so that it has a desired depth. The second tooth form has a second rake face and second relief face. The faces are on a desired angle. A second gullet is continuous with the second rake face providing a second tooth height. The second tooth height is greater than the first tooth height.

Abstract: A planar saw blade having an outer cutting edge with a plurality of saw teeth also includes sets of secondary teeth placed in cutout portions within the body of the saw blade. The secondary tooth sets provide portions within the body of the saw blade that provide additional cutting action that reinforces the primary outer cutting edge of the blade, and include deep gullets that aid in the removal of sawdust and debris.

Abstract: A saw includes a planar body having at least one cutting edge with serrated teeth. The planar body has cutout portions displaced from the outer cutting edges that include first and second sets of secondary teeth, which are positioned along first and second arcs concentric with the outer cutting edge or edges, at first and second radial distances from the center of the saw blade.

Abstract: A saw comprising a planar body includes at least one cutting edge with serrated teeth. The planar body has cutout portions displaced from the outer cutting edges which include sets of secondary teeth which are aligned generally parallel to or in an arc concentric with the outer cutting edge or edges.

Abstract: A saw blade comprising a series of teeth at a longitudinal edge thereof, arranged in alternate directions and formed in a tooth shape as defined by a first flank angle, a second flank angle, and a rake angle, is characterized in that the first flank angle lies between approximately 50.0° to 54.0°, the second flank angle lies between approximately 14.0° to 16.0°, and the rake angle lies between approximately 11.0° to 14.0°.

Abstract: A carbide or cermet tip for an industrial circular saw blade is provided with improved geometric features that provide enhanced performance and longer life for the saw blade. The features include a bottom mounting surface opposite a flank relief surface, a back mounting surface opposite a leading face surface, each surface bounded by a first side surface and a second side surface; and a chip splitting groove formed on a flank relief of the tip. The ratio of the width of the chip splitting groove to the width of the tip, the width of the chip splitting groove, and the ratio of the depth of the chip splitting groove to the width of the tip are optimized. The tip is adapted to prevent contact of the chip with a gullet area of the circular steel saw body.

Abstract: A reciprocating saw has a tooth form that decreases the cutting time of the saw blade and extends the life of the saw blade. The tooth height is longer than conventional metal cutting reciprocating saws. Also, the tooth form has a larger gullet. The tooth rake angle remains substantially constant during the life of the saw blade.

Abstract: An apparatus for cutting materials and more specifically an improved saw blade includes a plurality of variable teeth thereon. The variable tooth saw blade cuts faster and smoother while reducing harmonic vibrations. Specifically, the teeth on the saw blade are grouped into sections with differing circumferential widths and differing spacing between the sections.

Abstract: A bimetal saw band which is suitable for cutting materials of high hardness and wear resistance at high cutting speeds and with a reduced consumption of coolant is disclosed. The saw band includes a support band with from 0.20 to 0.45% of carbon, from 0.2 to 0.6% of silicon, from 0.5 to 1.8% of manganese, from 0.1 to 3.5% of molybdenum, from 1.0 to 5.0% of chromium, from 0.5 to 1.5% of nickel, from 0.1 to 1.0% of copper, from 0.1 to 2.0% of tungsten, from 0.1 to 0.5% of vanadium, from 0.01 to 0.30% of niobium and/or tantalum and less than 0.2% of cobalt, and the remainder iron including melting-related impurities, with the tungsten, vanadium and niobium/tantalum contents matched to one another. The saw includes hardmetal tips including at least 75% of tungsten carbide and 5 to 15% of cobalt, as well as grain stabilizers with a grain size of less than 5 ?m.

Abstract: An apparatus for cutting materials and more specifically an improved saw blade includes a plurality of variable teeth thereon. The variable tooth saw blade cuts faster and smoother while reducing harmonic vibrations. Specifically, the teeth on the saw blade are grouped into sections with differing circumferential widths and differing spacing between the sections.

Abstract: A metal cutting band saw blade has a plurality of cutting teeth defining a cutting direction, and a repeating tooth pattern of between 3 and 7 teeth. Each tooth defines a laterally-extending upper surface having a width and a height with respect to the back edge of the blade, and side surfaces extending laterally and downwardly on opposite sides of the upper surface relative to each other at acute angles relative to the upper surface. The teeth located rearwardly of the first tooth with respect to the cutting direction of the saw blade define progressively lower heights and progressively smaller acute angles of the side surfaces, and the widths of the upper surfaces of these teeth are greater than the width of the upper surface of the respective first tooth.

Abstract: A band saw blade includes a plurality of set teeth which are formed in a variable pitch. In that construction, a bending lengths of each of the set teeth at a setting and bending position or at a bendingly setting position are substantially equal to each other.

Abstract: An apparatus for cutting materials and more specifically an improved saw blade includes a plurality of variable teeth thereon. The variable tooth saw blade cuts faster and smoother while reducing harmonic vibrations. Specifically, the teeth on the saw blade are grouped into sections with differing circumferential widths and differing spacing between the sections.

Abstract: A cutting tool having a cutting tip partially constructed from ultrahard materials. The cutting tip is oriented on the cutting tool such that the face has a reduced surface area. This has the effect of greatly reducing cutting tool costs and of maintaining the radius of the blade essentially constant even after repeated sharpening of the cutting tip.

Abstract: A dust clearing band saw blade that includes a body having a blade thickness with a blank side and a cutting side. A plurality of spaced teeth having cutting edges are formed on the cutting side of the body, and a blade valley is defined between the adjacent teeth. A cut out is also positioned in front of the cutting edge of each tooth, whereby the cut out extends through the blade thickness and below the blade valley. A method for clearing sawdust from a band saw blade is also disclosed.

Abstract: A polymer cutter with a rotary cutting head in which the cutting edges are on the circumferential periphery of the head is described. The knife blades on the rotary head have a knife angle (as defined) of about 40° to about 60°. The apparatus is especially useful for cutting hard and/or brittle thermoplastics and may be used for preparing polymer granules or pellets.

Abstract: Cubic boron nitride tooling, e.g. for woodworking, is fabricated with the same geometries and machinery as is used for fabricating conventional carbide tooling.

Abstract: A saw blade is disclosed for the high-speed cutting of ferrous alloys. A blade with negatively-raked carbide-tipped teeth, a large gullet between each tooth, and vibration-reducing arc-shaped slots allow for the essentially burr-free cold-cutting of steel without lubricant.

Abstract: An improved cutting blade is provided for cutting and thinning brush and small trees. The blade comprises a substantially circular disc having a plurality of removable, solid carbide cutters circumferentially spaced along the edge of the disc. A plurality of circular cavities are spaced circumferentially forwardly from each cutter to provide a radially extending opening for receiving and clearing saw chips away from the blade. The cutters are removably secured to the blade in cutter slots, having elongated linear openings extending rearwardly therefrom. A plurality of mounting bolts and receiving members extend perpendicularly through the linear openings from the edge of the blade for selectively compressing the cutter slots and securing the cutters. The design of the present invention decreases the incidence of blade jams and kick backs and increases the cutting efficiency and safety of the blade.

Abstract: A saw blade having an annular body constructed of a first material having a perimeter where a plurality of teeth are formed into the perimeter. A plurality of carbide inserts, including a cutting edge, affixed to a respective tooth. The cutting edge includes a peak formed by an angle, a first side of the angle being shorter than a second side of the angle, wherein each adjacent tooth includes the peak being disposed on opposing side of the cutting edge.

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 saw blade is constituted with a unset tooth, a plurality of left-set teeth and a plurality of right-set teeth. In the construction, the saw blade has the unset tooth, a plurality of left-set teeth and a plurality of right-set teeth as one group. A plurality of set widths of the plurality of set teeth are formed in the saw blade. A relief angle of a tip of the unset tooth is equal to or greater than a relief angle of a tip of the set tooth having the smallest set width. Furthermore, the relief angle of a tip becomes small in accordance that the set width becomes greater.

Abstract: A polymer cutter with a rotary cutting head in which the cutting edges are on the circumferential periphery of the head is described. The knife blades on the rotary head have a knife angle (as defined) of about 40° to about 60°. The apparatus is especially useful for cutting hard and/or brittle thermoplastics and may be used for preparing polymer granules or pellets.

Abstract: A cut-off blade assembly including a thin metal blade having an attachment portion by which the cut-off blade assembly can be attached to a dispenser, and a plurality of projecting similarly shaped triangular primary teeth. The triangular primary teeth each have two sides terminating in points and have bases adjacent the attachment portion that are aligned in a first direction along the blade so that their points project generally at right angles to that first direction. Edge surfaces on the sides and at the points of the primary teeth intersect a major surface of the primary teeth at an included angle of no greater than about 90 degrees to define a cutting edge at that intersection. The cut-off blade assembly further includes projections along one major surface of the primary teeth.

Abstract: A saw blade has teeth which are located on a carrier blade. Saw teeth flanks are curved and convex. A transition point between a cutting edge of the saw tooth and the curved convex saw tooth flank is such that a spacing distance between a radial center of the saw tooth flank and a radial plane of symmetry of the saw tooth is greater than a spacing distance between the transition point and the plane of symmetry.

Abstract: In a saw blade having a cutting edge defined by a plurality of teeth disposed along the blade, each tooth includes a tip, a rake face, and a curvilinear base surface. The tip of each tooth and the tip of the next consecutively disposed tooth cooperate to define a pitch distance therebetween, with the curvilinear base surface and the tip of each tooth cooperating to define a maximum gullet depth. In addition, the rake face and the curvilinear base surface of each tooth define an effective gullet radius greater than about 25% of the pitch distance, and also greater than about 55% of the maximum gullet depth.

Abstract: Saw blade utilized for applications in which two saw blades are arranged located in an adjacent relationship and with opposed rotary direction in relation to each other. Every side portion of each saw tooth adjacent to a first side plane, being the side plane in use intended to be located adjacent to a similar co-acting saw blade, extending substantially parallel in relation to the first side plane, but with an extension more closely related to the central portion of the saw blade, separated from the first side plane by a smaller distance. Furthermore, the outer edge portion of each saw tooth adjacent to a second side plane of the saw blade is arranged with a peripherally initially substantially straight part, located outside the second side plane and in a substantially parallel relationship thereto, and which is transformed into an inclined part in relation to the second side plane, arranged to create a clearance angle.

Abstract: A cutting tool is provided which includes a steel metal body and a cemented carbide cutting tip secured to the metal body by a metallic layer. The metallic layer has a high-strength metallic portion and a high-toughness metallic portion. The high-strength metallic portion is made of a metal having a thermal expansion rate between a thermal expansion rate of the metal body and the thermal expansion rate of the cutting tip. The high-toughness metallic portion is located between edge portions of a securing region of the metal body and the cutting tip and has toughness larger than that of the high-strength metallic portion.

Abstract: A cutter tooth assembly for impingement of a material (e.g., a stump, wood, brush or earth strata). The assembly attaches to a driven member (e.g., a rotatable wheel). The assembly includes a cutter tooth which has an elongate body with a leading end and a trailing end, as well as a hard insert at the leading end of the tooth. The assembly also includes a pocket which has a base portion and a holder portion. The pocket attaches to the wheel at the base portion thereof. The cutter tooth is retained to the pocket at the holder portion thereof. The base portion of the pocket has a leading surface and a trailing surface. The cutter tooth is retained by the holder portion of the pocket so that the hard insert extends circumferentially past the leading surface of the base portion of the pocket.

Abstract: A saw blade preventing "fluff" or "return" of fibers from occurring when used to cut wood or the like object and rendering any finishing work unnecessary is formed with a unique combination of cutting teeth and biting teeth, the biting teeth being disposed, on a cut path mainly by means of the cutting teeth, either on top surface of or in front of each cutting tooth in cutting direction of the saw blade and to have a smaller width than the cutting teeth, for realizing a biting operation by the biting teeth and the cutting operation by the cutting teeth in the same sawing step.

Abstract: A saw tooth apparatus is adapted to be connected to and driven by a power source and includes a circular disk-like base connected to the power source. The circular disk-like base is bisected by a centrally located center plane. A plurality of tooth supports are distributed peripherally around the circular disk-like base. Each tooth support has a minimum transverse tooth support thickness, a maximum transverse tooth support thickness, and a tooth support radial height from a geometrical center of the circular disk-like base. A plurality of teeth are provided, and each tooth is supported by a leading side of a respective tooth support. Each tooth includes a most radially distal tooth portion, a pair of arcuately contoured intermediate tooth portions located symmetrically on either side of the center plane and adjacent to the most radially distal tooth portion, and a least radially distal tooth portion located adjacent to the pair of arcuately contoured intermediate tooth portions.

Abstract: A high speed hand tool includes a saw disc having less than ten teeth, preferably four. Each tooth has a radial flank, which preferably inclines forward in the cutting direction, and a tangential flank, which has a small clearance angle. The teeth may have a greater thickness than the disc itself which thickness, in that case, diminishes in a direction opposite to the direction of rotation. Alternatively, the teeth may be offset alternately to the right and the left. The invention also comprises an adjustable protective device which enables setting the depth of a perpendicular saw cut.

Abstract: An indexable cut-off saw is used for cutting metal components, e.g. cutting a bearing cap cluster into separate caps. The saw has a circular tool body for mounting on an arbour and this tool body has flat side faces and a narrow outer periphery. A plurality of circumferentially equally spaced cutting inserts are mounted at the outer periphery of the tool body, these inserts being arranged in groups of three such that the total width of the saw cut is divided between the actions of three cooperating cutting inserts. These three cooperating cutting inserts include a central insert mounted centrally on the outer periphery of the tool body and left and right side inserts mounted in pockets extending into the side faces of the tool body. The left and right side inserts are of rectangular configuration presenting straight cutting edges, while the central cutting insert of each group presents a curving cutting face.

Abstract: An improved circular saw blade is rotatable in a guard casing having tree receiving vertically aligned openings in its upper and lower plates. The blade has a peripheral surface formed in part by a series of replaceable circumferentially spaced teeth with transverse cutting edges positioned to rotate about a predetermined first radius. The blade also has a series of circumferentially spaced, generally radially projecting backer tooth mounts for receiving the rear surfaces of the teeth. The mounts have sloped peripheral surfaces lying radially inside the first radius of rotation and have rear surfaces generally parallel to the mount front surfaces. The saw further has generally tangentially projecting finger-like guides in a guide region spaced circumferentially forwardly from each tooth to provide a radially extending chip passing slot between each tooth and guide and the guides have peripheral surfaces positioned to rotate radially inside the first arc of rotation about a second arc of rotation.

Abstract: A cutting tooth for a tree felling saw having a concave front surface and a convex rear surface can be removably fixed to a saw by a fastening device The front surface and the rear surface are uniformly spaced and have a plurality of side surfaces extending therebetween. The intersection of each side section with the front surface forms a cutting edge. An aperture is formed in the cutting tooth for receiving the mounting element.

Abstract: A cut off blade adapted for severing plastic film material folded in layers. The blade is a thin metal sheet including an attachment portion and a plurality of similarly shaped teeth defining a cutting edge portion of the blade. Each of the teeth defines parts of the first and second major surfaces in the shapes of isosceles triangles with two equal length sides terminating in points and having bases adjacent the attachment portion and aligned in a first direction along the blade so that the points project at right angles to the first direction. The angle between any portion of an edge surface of the blade along the cutting edge portion and the second surface when measured in a plane normal to the first direction is the same acute angle, and the metal of the sheet defining the edge surface along the cutting edge has been cold flowed toward the intersection thereof with the second major surface by a punch and die forming method to define a sharp edge at that intersection.

Abstract: A cutting tooth, viz. roughing tooth (2) and finishing tooth (3) made from cutting metal for a metal slitting saw, especially a circular disk saw, the geometry of said tooth being determined by the primary clearance angle (.alpha.), the rake angle (.gamma.), the radial clearance angle (.beta.), the tangential untoleranced dimension (s-e) and a tangential land (12) on the finishing tooth (3) with a negative relief angle (.epsilon.), in which for both the roughing tooth (2) and the finishing tooth (3) the cutting edge (7; 7', 7") is stabilized by a negative land (5; 5', 5"), and in which the angle (.chi.) between land and chip breaker face (4) is about 190.degree. to 240.degree., especially about 205.degree. to 230.degree..

Abstract: A carbide tipped saw for cutting non-ferrous industrial metals, capable of use on a low-rpm metal sawing machine designed for saws with high-speed steel teeth, has higher hogger teeth alternating around its periphery with lower raker teeth. Each hogger has a cutting edge that is parallel to the saw axis and extends across more than half of the kerf width, defined by the junction of a positively raked front surface with a top surface. Oblique front edges on the hogger are defined by junctions of the front surface with oblique surfaces that lie between the top and side surfaces and face radially and axially outwardly. Each raker removes only side portions of the kerf and has swept-back cutting edges defined by the junctions of its top surface with chamfer surfaces that are negatively raked and face obliquely forwardly and axially outwardly.

Abstract: The teeth of the saw blade (1) intended for preparing wood comprise a cutting edge (2) beginning at the tip (6) and forming an angle of intersection (.delta.) of 40.degree.-55.degree.. Adjoining the cutting edge (2) at the tooth face there is a cut-back, circular curved section (3). This curved section (3) continues at the bottom into a rounded base (4) between adjacent teeth and then continues into the edge (5) bordering the gap between the teeth, and on into the back of the next tooth.A considerably increased cutting performance is achieved with a saw blade of this kind, since a paring action is effected, and the shavings can roll away easily.Saw blades equipped with this kind of teeth can be made both as circular saw blades and also as bandsaw blades which are moved in a straight line.

Abstract: A metal cutting band saw blade has a plurality of cutting teeth defining a cutting direction, and a repeating tooth pattern of between 3 and 7 teeth. Each tooth defines a laterally-extending upper surface having a width and a height with respect to the back edge of the blade, and side surfaces extending laterally and downwardly on opposite sides of the upper surface relative to each other at acute angles relative to the upper surface. The teeth located rearwardly of the first tooth with respect to the cutting direction of the saw blade define progressively lower heights and progressively smaller acute angles of the side surfaces, and the widths of the upper surfaces of these teeth are greater than the width of the upper surface of the respective first tooth.