Abstract: A harvesting knife has a base body, which is configured to be applied in a manner rotating in a machine around a drive rotational axis allocated to said base body, and having a plurality of teeth on its circumference. Prior to a first application, at least one of the teeth has at least one cutter formed thereon.

Abstract: Embodiments herein describe presets for saw chains comprised of one or more rivets that are coupled to a tiestrap. Each rivet may further comprise a central flange and a hub protruding from opposed sides from the flange. In some embodiments, the hub may be non-concentric from the flange, and the flange may be non-circular, such as ovoid or cam-shaped. In some embodiments, various portions of the flange, rivet, and tiestrap may be selectively hardened to various degrees of hardness, depending upon their location and usage. In some embodiments, the rivets may be prevented from rotating with respect to the tiestrap using a brazing process, and may be configured to facilitate such processes. Other embodiments may employ a non-circular hub. Still other embodiments may use a low-temperature process for soldering that does not affect the hardness of the tiestrap or rivet.

Abstract: Embodiments herein provide an abrasive saw chain that includes drive links and tie straps coupled to one another. Cutting elements, such as diamond cutting elements, may be coupled to upper surfaces of respective drive links. An upper surface of the tie strap may contact a lower surface of a cutting element to provide support for the cutting element. The tie strap may include a limiting feature to contact front and/or back surfaces of adjacent cutting elements when the links traverse an elongate portion of a guide bar. Alternatively, or additionally, the drive links may include a mating surface that contacts a mating surface of an adjacent drive link when the drive links traverse the elongate portion of the guide bar. Other embodiments may be described and/or claimed.

Abstract: A machine tool separating device, in particular a handheld machine separating device, includes at least one cutting strand and at least one guide unit. The cutting strand, viewed along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension less than 4 mm.

Abstract: Embodiments herein provide a drive link having a conditioning portion to be used in conjunction with one or more dresser links of a saw chain to condition a sharpening element. The dresser links may include left and right dresser links configured to contact the sharpening element in first and second contact regions which may not overlap, leaving a gap. The conditioning portion of the drive link may contact the sharpening element in a third contact region that includes at least a portion of the gap between the first and second contact regions.

Abstract: A method for producing a cutting unit segment of a cutting unit of a machine tool separating device, includes at least one cutter support element and at least one cutter element. In at least one step, the cutter element is molded on the cutter support element by a drawing process in an at least partially staggered manner relative to an outer surface of the cutter support element.

Abstract: A machine tool separating device has at least one cutting line. The cutting line has a changing cutting edge angle geometry along one cutting direction of the cutting line.

Abstract: A machine tool separating device, in particular a manual machine tool separating device, includes at least one cutting train that comprises at least one cutter-support element and at least one connecting element that is integrally formed with the cutter-support element. The cutter-support element has at least one transverse securing element that is configured to secure the cutter-support element against a transverse movement relative to another cutter-support element of the cutting train to the greatest extent possible in the assembled state.

Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.

Abstract: A chain bar unit for a wall saw is presented herein. The chain bar unit can include a bar configured to receive a circulating chain or wire around a perimeter of the bar. The chain bar unit also can include a driving gear for driving the chain or wire around the bar, the driving gear configured to be coupled to an output shaft of the wall saw. The chain bar unit further includes the bar being tapered from an end proximate to the driving gear to a distal end having a distal end radius, wherein a width of the bar at the proximate end, is at least two times the distal end radius of the distal end.

Abstract: Embodiments herein provide a dresser link for a saw chain that is configured to condition a sharpening element. The dresser link may include a conditioning element with an outer edge that is offset from an outer side of the dresser link. The conditioning element may include a horizontal relief angle and/or a vertical relief angle. The saw chain may further include a cutter link having a cutting element. The horizontal and/or vertical relief angle may facilitate maintenance of a clearance between the cutting element and the conditioning element after wear of the cutting element and conditioning element.

Abstract: What is disclosed is a circular core for a rotary or circular saw typically used in rescue type operations for cutting openings in building material and featuring alternating pockets on the circumference of the core for the placement of drive links of a chain having cutting segments such that the pockets alternate between pockets on each side of the circular core.

Abstract: Embodiments herein provide formed wire tie strap for a saw chain. Embodiments also provide a saw chain including one or more formed wire tie straps. The formed wire tie strap may include a body with one or more integrated rivets extending from the body. In some embodiments, the body may be substantially flat. The rivet may include a rivet head configured to engage a rivet hole of an opposing tie strap and a shoulder configured to engage a rivet hole of a connecting link, such as a drive link. Some embodiments of the formed wire tie strap may include a pair of integrated rivets extending from the body. Some embodiments may include a rivet hole disposed in the body of the formed wire tie strap.

Abstract: Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.

Abstract: The present invention discloses a chain segment for a chain tool comprising a plurality of members consecutively connected therebetween. Each member has a median plane M disposed parallel between a first and a second flank of the member, bisecting the member thickness. Adjacent median planes M of adjacent members are disposed parallel with respect to each other and displaced therefrom by the member thickness.

Abstract: Embodiments herein provide a dresser link for a saw chain that is configured to condition a sharpening element. The dresser link may include a conditioning element with an outer edge that is offset from an outer side of the dresser link. The conditioning element may include a horizontal relief angle and/or a vertical relief angle. The saw chain may further include a cutter link having a cutting element. The horizontal and/or vertical relief angle may facilitate maintenance of a clearance between the cutting element and the conditioning element after wear of the cutting element and conditioning element.

Abstract: A method for producing at least one cutting line segment of a cutting line, having at least one cutter support element and one cutter element, comprises, in a first step at least one powder is mixed with at least one binder in a mixing device to produce a feedstock.

Abstract: Various embodiments of the present disclosure generally provide a drive link for a saw chain including a body portion adapted to couple to adjacent side links and a tang extending from the body and sized to engage a guide bar groove. The tang may include a through hole extending from a first tang side to a second tang side and including a through hole center. In various embodiments, a material directing feature may be disposed adjacent to the through hole on at least one of the first side and second side of the tang. The material directing feature may include a recession in the tang which encourages oil and/or wood chips to pass through the through hole.

Abstract: Embodiments herein provide a drive link having a conditioning portion to be used in conjunction with one or more dresser links of a saw chain to condition a sharpening element. The dresser links may include left and right dresser links configured to contact the sharpening element in first and second contact regions which may not overlap, leaving a gap. The conditioning portion of the drive link may contact the sharpening element in a third contact region that includes at least a portion of the gap between the first and second contact regions.

Abstract: The claimed invention relates to a device in a guide bar (10) for a chain saw. The guide bar (10) comprises at least two layers (11, 12, 13) that are bounded by an adhesive material. To ensure that the layer of adhesive material gets the optimal thickness is one of the surfaces of the layers that will be bounded to each other provided with several protruding parts (17). The protruding parts (17) will generate a slot, with the same width as the height of the protruding parts, for the adhesive material when the layers are put together. This is important to ensure maximum strength in the bounding as well as a constant width of a groove (14) for the saw chain.

Abstract: Embodiments provide various saw chain links which may be combined to form a utility saw chain. In various other embodiments, cutting system fixtures are disclosed which may facilitate the cutting of pipes and other materials from an axis point.

Abstract: A cutting chain for cutting concrete and other similar materials having wear and stretch resistant features. In one embodiment, the cutting chain can include chain links having a debris trap for hindering the entry of debris onto bearing surfaces. In one embodiment, side links and a center link can have cooperating members forming a maze-like debris trap and can include a lubricant and/or other barrier material. In a particular arrangement, side links can have annular ribs which can be partially received in annular grooves on a center link to create the maze-like debris trap. In another embodiment, the cutting chain can include chain links having anti-rotation structures to hinder rotation of the fastener relative to the side links. In a particular arrangement, side links can have a protrusion or slot for cooperating with a complementary mating slot or protrusion on the fastener.

Abstract: A cuffing chain for cutting mineral and metal materials has central chain links and lateral connecting links. The cutting chain has connecting pins with a central section which has a diameter that is greater than the diameter of openings in adjacent connecting links. The cutting chain has two connecting links which have a supporting section instead of a cutting element. At least two second connecting links positioned adjacent to one another at right angles to the direction of travel of the cutting chain are formed separately from one another. As a result, the cutting chain can be opened for maintenance and repairs despite the use of collar studs as connecting pins.

Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.

Abstract: Embodiments of the disclosure provide a saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.

Abstract: Embodiments of the disclosure provide a saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.

Abstract: A rotating cutting head includes multiple, separate, spaced-apart, parallel loops of chainsaw chains positioned around a central hub. The hub is attached to a spindle of a lawn edger. A safety shield is provided adjacent to the rotating cutting head. As the cutting head rotates, the chainsaw chains cut the tree roots. The rotating cutting head is used for resurfacing exposed tree roots to avoid tripping hazards and tree root strike damage to residential and commercial lawn maintenance equipment.

Abstract: Embodiments of the disclosure provide an aggregate cutting saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.

Abstract: A saw chain which is reversible having adjacent chain sections each having a pair of cutting links with cutting teeth disposed on opposite sides of the chain having flanged cutting teeth extending over the chain. The cutting edge on the pairs of cutting teeth on adjacent sections are oppositely disposed so that when the chain becomes dulled it can be reversed on the chain saw bar to reverse the chain sections to place sharp teeth in the cutting position and the previously used teeth are in a non-cutting position.

Abstract: A rotating cutting head includes multiple, separate, spaced-apart, parallel loops of chainsaw chains positioned around a central hub. The hub is attached to a spindle of a lawn edger. A safety shield is provided adjacent to the rotating cutting head. As the cutting head rotates, the chainsaw chains cut the tree roots. The rotating cutting head is used for resurfacing exposed tree roots to avoid tripping hazards and tree root strike damage to residential and commercial lawn maintenance equipment.

Abstract: A saw chain for cutting aggregate materials comprises a plurality of identically shaped interconnected links. Each link has first and second ends configured such that a first end of one link is connected to a second end of an adjacent link of the saw chain. The first end of each link includes spaced apart tabs, and the second end of each link includes a tab. The second end tab of each link is dimensioned to be pivotally received between the first end tabs of an adjacent link. A plurality of fasteners interconnects the links, the fasteners being configured to at least partially protect the saw chain protecting the links against impacts.

Abstract: According to a chain saw braking system, engagement between a front end portion of a belt and a main body by an engagement member is released at the time of application of an impact. When a front end portion is pulled by the spring force of a compression coil spring, an elongate hole for protrusion is engaged with a protrusion to restrict a rear end portion from being moved in the same direction as the front end portion. Thus, it is possible to strongly tighten a drum by the belt to thereby reliably stop the movement of a chain. With this arrangement, the chain can be prevented from being damaged when a chain saw is accidentally dropped onto the ground due to an impact applied thereto.

Abstract: A quick change cutting link of a saw chain for cutting wood comprises a base member adapted to be pivotally connected to other links of the saw chain. The base member comprises a seat surface. A cutting member comprising a “V” notch releasably engages the seat surface of the base member. Attached to the “V” notch is a carbide tip, including a cutting edge. The carbide tip is accurately placed in the “V” notch by mating with a small piece of metal in the “V” notch. The carbide tip is then sinterbrazed to the cutting member. The cutting member and seat surface may also comprise an inverted L-shaped protrusion and the other includes an inverted L-shaped recess for receiving the inverted L-shaped protrusion. The inverted L-shaped protrusion and recess may be designed so as to form a wedge.

Abstract: In various embodiments, a saw chain is provided that includes a rail engaging link that has an offset footprint within the link itself and/or with respect to other links in the chain that are adapted to ride on the same rail. Saw chains as provided may be used in a variety of applications, including but not limited to wood cutting and aggregate cutting applications.

Abstract: A chain-type flexible cutting edge, particularly for bush-cutter is described, comprising at least one linear connecting and cutting link (3) and at least one toothed connecting and cutting link (5) mutually connected in an articulated manner in order to have a smooth cutting-start edge (TL) and a toothed cutting-start edge (TD).

Abstract: A cutting assembly of a chainsaw includes a saw chain and a guide bar (4) for guiding the saw chain (3) along a peripheral edge (5) of the guide bar. The saw chain (3) has drive links (6) having drive bases (7) which with their side surfaces (8, 8?) are slidingly guided between the side walls (9) of a guide groove (10) of the guide bar (4) with the formation of a friction pairing. Lubricant pockets (11) are formed in the side surface (8). The lubricant pockets (11) are only open toward the corresponding side wall (9) of the guide groove (10) and are otherwise closed. Offside the lubricant pockets (11), the side surface (8) has a flat sliding surface (12) which slides on the side wall (9) of the guide groove (10). The lubricant pocket (11) has a mean diameter and a maximum depth. The ratio of the mean diameter to the maximum depth lies in a range of 5.0 up to and including 25.0.

Abstract: A plurality of bushings are coupled to one another via a series of bolts to provide an interlocking, articulating cutter. The bolts have a cylindrical end and a convex end. The convex ends are seated inside a concave socket coupled to the bushings. The cylindrical ends are coupled to a convex nut seated inside another concave socket coupled to an adjacent bushing. The convex ends of the bolts are configured to articulate inside the seat of the concave sockets. A washer may be placed between the bushings to provide a desired amount of flexibility and/or rigidity. The outer surface of the bushing comprises a cutting structure, such as a milled or clad cutting structure.

Abstract: There are provided a fixed-abrasive grain saw wire with a superior cutting performance and a manufacturing method thereof. Particularly, there are provided a fixed-abrasive grain saw wire with abrasive grains adhered to a metal wire via a Zn-based or Sn-based low-melting-point metal and a high-melting-point metal having a melting point higher than that of the low-melting-point metal, and a manufacturing method thereof.

Abstract: The invention concerns a method for a sawchain and a sawchain. According to the method according to the invention, a sawchain intended to be used for a sawing arrangement for a forestry harvester in order to prevent the whip-like movement of a sawchain that breaks during sawing, is achieved through a method that comprises the steps:—that the sawchain (1) is provided with a means (20) of limiting pivoting that allows a forwardly located link (3, 4, 5, 2) of the sawchain to pivot in a first direction relative to the subsequent link (3, 4, 5, 2) while limiting the ability of the forwardly located link to pivot in an opposite second direction relative to the subsequent link,—that the sawchain (1) is driven around a guide bar (9) with the aid of a driving wheel that is located at one end of the guide bar,—that sawing of a tree trunk is carried out through the guide bar (9) being turned around an axis of rotation.

Abstract: A saw chain for a chain saw is disclosed. Embodiments include a drive link that may be used in a saw chain, wherein the drive link includes a tail and a concavity that complements a depth gauge of a trailing cutting link, reducing and/or minimizing the drive link's protrusion into a gullet space of the cutting link. Embodiments of the invention may help improve cutting performance and further help reduce kickback potential.

Abstract: Various embodiments of the present disclosure generally provide a drive link for a saw chain including a body portion adapted to couple to adjacent side links and a tang extending from the body and sized to engage a guide bar groove. The tang may include a through hole extending from a first tang side to a second tang side and including a through hole center. In various embodiments, a material directing feature may be disposed adjacent to the through hole on at least one of the first side and second side of the tang. The material directing feature may include a recession in the tang which encourages oil and/or wood chips to pass through the through hole.

Abstract: A saw chain rivet is provided including a flange, and a hub extending from a side of the flange. A shoulder defined by a junction between the hub and the flange has properties optimized to resist shear forces. The hub may be optimized for ease of rivet head formation.

Abstract: A cutting apparatus with a ring saw which can easily carry out a high-speed cutting by rotating while applying an impact force, crushing a base rock, a stone, a concrete or the like, and cutting while flicking the crushed portion is provided. Further, a user-friendly cutting apparatus with a ring saw which can easily carry out an operation at a time of attaching as an attachment to a shovel type excavating machine such as a backhoe or the like is also provided. The cutting apparatus with the ring saw in accordance with this invention is a cutting apparatus with a ring saw provided with a cutting blade, and a driving step rotationally driving the ring saw around a center axis thereof, in which the ring saw is supported to a support body attached to an apparatus main body so as to freely oscillate in a cutting and traveling direction, and an impact applying step is provided so as to apply an impact force to a subject to be cut from a cutting blade of the ring saw under rotation.

Abstract: The invention relates to a chainsaw having chain links (1), such as chain links and connecting links, wherein the chain links (1) comprise rivet openings (2), in which pins (3) are disposed that form jointed connections between the chain links (1), and wherein at least one sealing means (4) is provided around each of the rivet openings (2) between the surfaces of the chain links (1) facing each other, and wherein the sealing means (4) is also directly connected on a chain link (1) and thus only one sealing surface is formed against the chain link positioned on the opposite side. The invention further relates to a method for the production of a chainsaw having the above mentioned chain links (1).

Abstract: The present invention provides a transfer unit having a transfer rotor and a food waste treatment apparatus using the transfer unit. The transfer unit includes the transfer rotor, a housing and a sieve. The transfer rotor includes a rotor body, and at least one blade provided on the circumferential outer surface of the rotor body. The housing has a hollow container shape and contains the transfer rotor therein such that the transfer rotor is rotatable without interference from the housing. The housing is inclined at a predetermined angle with respect to the horizontal plane. The sieve is provided in the housing to guide discharge of sewage from food waste. The sieve is disposed in the lower portion of the housing to drain the sewage generated from the food waste to the outside of the housing.

Abstract: A cutting chain for cutting concrete and other similar materials having wear and stretch resistant features. In one embodiment, the cutting chain can include chain links having a debris trap for hindering the entry of debris onto bearing surfaces. In one embodiment, side links and a center link can have cooperating members forming a maze-like debris trap and can include a lubricant and/or other barrier material. In a particular arrangement, side links can have annular ribs which can be partially received in annular grooves on a center link to create the maze-like debris trap. In another embodiment, the cutting chain can include chain links having anti-rotation structures to hinder rotation of the fastener relative to the side links. In a particular arrangement, side links can have a protrusion or slot for cooperating with a complementary mating slot or protrusion on the fastener.

Abstract: A disc saw blade includes a saw chain mounted around the circumference of a circular disk, which saw chain is provided with driving links, connecting links and cutting links. Due to the driving links, the chain is guided in at least one chain groove arranged around the periphery of the disk. The bottom of the groove has radial projections distributed around the circumference, and the driving link has a cam surface on a projecting part that projects radially inwards, for interaction with the respective radial projection. The chain can move from a neutral position, in which the respective projecting part is loosely disposed between two adjacent radial projections, to a working position, in which the respective cam surfaces are in contact with the associated radial projections.

Abstract: A chain-type flexible cutting edge, particularly for bush-cutter is described, comprising at least one linear connecting and cutting link (3) and at least one toothed connecting and cutting link (5) mutually connected in an articulated manner in order to have a smooth cutting-start edge (TL) and a toothed cutting-start edge (TD).

Abstract: Embodiments provide various saw chain links which may be combined to form a utility saw chain. In various other embodiments, cutting system fixtures are disclosed which may facilitate the cutting of pipes and other materials from an axis point.

Abstract: A saw chain for a saw is disclosed. Embodiments include a drive link that may be used in a saw chain, wherein the drive link includes a tail and a concavity that complements a depth gauge of a trailing cutting link, reducing and/or minimizing the drive link's protrusion into a gullet space of the cutting link. Embodiments of the invention may help improve cutting performance and further help reduce kickback potential.