Abstract: Embodiments include a bar for a chain saw that is equipped with one or more oil channels that run along the length of the bar. Each oil channel receives oil at a first end, which exits the oil channel at an oil exit aperture at a second end of the channel. The oil exit aperture of one of the channels is positioned along the side of a bar groove, through which runs the saw chain, proximate to the cutting area of the bar to lubricate the saw chain just prior to the cutting area. A second channel may have an oil exit aperture proximate to the nose of the bar, to lubricate a sprocket wheel in the nose of the bar.

Abstract: A modular noseroller assembly for transitioning a conveyor belt at an end of a carryway comprises a plurality of roller-mounting modules connected to a spacer element to form a noseroller assembly that can be installed in a conveyor frame. The roller-mounting modules mount freely-rotating rollers on an axle extending through the plurality of roller-mounting modules. The configuration and size of the noseroller assembly can be easily modified depending on a particular application.

Abstract: A surgical saw blade including a cutting edge, blade body and a coupling for connecting the blade body to a handpiece. The blade body at least partially includes a composite material that helps to confer optimal weight and rigidity to the saw blade to allow for minimal vibration during use and minimal mechanical load on the handpiece.

Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around which a chain is rotatable. The guide bar (120) includes a laminated structure in which different ones of the layers of the laminated structure are comprised of different materials.

Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around which a chain is rotatable. The guide bar (120) includes first and second side plates (200 and 210), a sprocket wheel (220), first and second shims (240 and 242), and first and second sealing members (244 and 245). The first and second side plates (200 and 210) each face other and extend away from a housing (110) to a nose. The sprocket wheel (220) is provided at the nose between the first and second side plates (200 and 210). The first and second shims (240 and 242) are disposed between the first and second side plates (200 and 210), respectively, and corresponding ones of first and second sides of the sprocket wheel (220). The first sealing member (244) is disposed between the first shim (240) and the first side of the sprocket wheel (220).

Abstract: A folding knife includes a lockbar for automatically locking a knife blade in an opened position relative to a handle. A puck attached to the lockbar is configured to engage a tang of the blade to lock the blade in an open position relative to the handle.

Abstract: A guide bar for a saw chain includes an elongate, flat base body made of a basic material. The base body extends along a longitudinal center axis and, in order to guide a saw chain, has a running surface formed on an outer periphery thereof and a guide groove formed in the outer periphery of the base body. The guide groove has a groove base. A direction-reversing section for the saw chain is provided at one end of the base body. The direction-reversing section includes at least one add-on component having a running surface made of more wear-resistant material than the basic material of the base body. The add-on component is secured to the base body of the guide bar by at least one weld seam. The weld seam extends between the add-on component and the base body and is located spatially beneath the groove base.

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: Chain bar apparatus and methods are disclosed that may be formed from plastic, metal or other materials. Laser cutting of a chain bar core can provide improved structural characteristics, for example when adhesive is used to assemble the chain bar. Flow diversion elements can be used to optimize flow throughout the chain bar.

Abstract: A chainsaw guide bar adapted for carving and shaping a workpiece. In one embodiment, a guide bar includes a mounting end, a distal working end, and an intermediate portion offset from the longitudinal axis defined the mounting end. In one embodiment, the guide bar includes an axially elongated recess providing an unsupported span of chain which is movable between undeflected and deflected positions for contouring a workpiece. The chain is engaged with and supported in a guide rail slot along the top peripheral edge of the guide bar. Various embodiments of the guide bar have an asymmetrical shape. The guide bar may further include an idler sprocket mechanism operable to guide movement of the saw chain along the outer peripheral edge of the guide bar.

Abstract: A chainsaw guide bar adapted for carving and shaping a workpiece. In one embodiment, a guide bar includes a mounting end, a distal cutting end, and an intermediate portion offset from the longitudinal axis defined the mounting end. The guide bar may further include an idler sprocket mechanism operable to keep the saw chain engaged with the outer peripheral edge of the guide bar. In other embodiments, the guide bar includes an axially elongated recess providing an unsupported span of chain which is movable between undeflected and deflected positions when carving a workpiece.

Abstract: Chain bar apparatus and methods are disclosed that may be formed from plastic, metal or other materials. Laser cutting of a chain bar core can provide improved structural characteristics, for example when adhesive is used to assemble the chain bar. Flow diversion elements can be used to optimize flow throughout the chain bar.

Abstract: A guide bar for the saw chain of a power saw, including an elongated, planar main body having an outer periphery that is provided with a guide groove for guiding a saw chain. A direction-changing section is disposed at a free end of the guide bar and includes two side plates. At least one rivet is provided for securing the side plates to the main body, with the rivet extending through an opening in the main body. On at least one side of the main body, the opening is provided with a flared depression for receiving an adjacent element.

Abstract: An anti-pinch chainsaw bar assembly for enabling the extraction of chainsaw bars when bound or pinched during cutting includes rolling bearing members integrated into outer surfaces of the bar. The bearings are arranged in groups of at least two bearings in rolling contact with one another. At least one bearing in each group extends outwardly from each outer surface of the bar. The assembly preferably also includes wedge structures mounted on the distal end of the bar for spreading out the sides of a cut.

Abstract: A lightweight chainsaw guide bar capable of carving and shaping wood and other solid materials with the ability to cut in curvilinear fashion in a tighter radius due to hollowing out or eliminating portions of the guide bar.

Abstract: Disclosed is a chain saw which includes chain saw chain tensioning and braking systems. Tensioning and braking are effected by the presence and control of longitudinal slits in an elongated support which provides a continuous chain channel guide in its outer circumference.

Abstract: A lightweight guide bar formed from a heavy material, e.g., steel, and having a center section, e.g., a cavity of reduced material and fitted with a lighter weight insert, e.g., aluminum plate. The center section includes a flange to which the aluminum plate is adhered and a spacer lip defines the desired thickness of the adhesive. Adhesive is applied to the desired thickness under the lip and the aluminum plate is abutted against the lip and into contact with the adhesive for adhering of the plate to the flange. In a preferred embodiment, the flange is a continuous web down the center of the center section and insert plates are adhered to each side of the web. Also, preferably the inserts are oval and symmetrical and are selectively mechanically secured to the flanges by rivets.

Abstract: A chain saw which includes chain tensioning and braking systems. Tensioning and braking are caused by the presence and control of longitudinal and lateral slits in an elongated support which provides a continuous chain channel guide in its outer circumference.

Abstract: A lightweight guide bar formed from a heavy material, e.g., steel, and having a center section, e.g., a cavity of reduced material and fitted with a lighter weight insert, e.g., aluminum plate. The center section includes a flange to which the aluminum plate is adhered and a spacer lip defines the desired thickness of the adhesive. Adhesive is applied to the desired thickness under the lip and the aluminum plate is abutted against the lip and into contact with the adhesive for adhering of the plate to the flange. In a preferred embodiment, the flange is a continuous web down the center of the center section and insert plates are adhered to each side of the web. Also, preferably the inserts are oval and symmetrical and are selectively mechanically secured to the flanges by rivets.

Abstract: A guide plate assembly for a chain saw includes a middle plate that is sandwiched and fixed between two side plates so as to define a guide groove among outer peripheries of the middle plate and the side plates. A saw chain can run within the guide groove. The middle plate has a plurality of first holes formed therethrough. Each of the side plates has a plurality of second holes formed therethrough that are aligned and communicated with the first holes in the middle plate.

Abstract: A guide plate assembly for a chain saw includes a middle plate that is sandwiched and fixed between two side plates so as to define a guide groove among outer peripheries of the middle plate and the side plates. A saw chain can run within the guide groove. The middle plate has a plurality of first holes formed therethrough. Each of the side plates has a plurality of second holes formed therethrough that are aligned and communicated with the first holes in the middle plate.

Abstract: A chainsaw guide bar includes a bar body and a nose member removably attached to the bar body by an elastic snap-in coupling, eliminating the need for separate fastening elements. The snap-in coupling includes dimples formed in tongues of the nose member, the dimples being received in holes formed in a web of the bar body. The dimpled portions of the tongues are elastically flexible in a thickness direction of the guide bar to enable the nose member to be inserted or removed.

Abstract: A guide bar for a chain saw is provided having an elongate substantially planar main body portion made from a first material and having an opening extending therethrough. An elongate insert made from a second material is configured to fit closely in the opening in the main body portion. The main body portion has a holding mechanism for retaining an end portion of the insert to inhibit release of the end portion of the insert laterally of the main body portion.

Abstract: A guide bar for the treatment of tree stumps. A channel formed in the bar length is fitted with a soft metal tube. The tube is pierced with a piercing tool that produces hole forms leaving a center opening inset toward the tube center with flared sides that allow spreading of the liquid treatment directed from the tube interior to a stump surface while severing a tree. The opening may be varied in size to accommodate different pivotal speed rates of the hole form locations along the bar length.

Abstract: A chain saw guide bar for a tree harvester is arranged to yield when an excessive force is applied such as when the guide bar becomes jammed in a cut. Yielding of the guide bar protects the bar holder from damage. The guide bar is heat treated or otherwise structurally modified to provide the desired yield strength.

Abstract: The invention relates to a method for assembling a guide bar having a guide groove for a saw chain of a motor-driven chain saw. The guide groove extends along the periphery of the guide bar. The guide bar includes two parallel mutually adjacent side parts and individual spacers arranged between the side parts. The spacers hold the side parts at a spacing corresponding to the groove width. The side parts as well as the spacers are inseparably joined to each other at individual attachment points. A spacer is arranged at each attachment point. The spacers are fixed to a common carrier to obtain a light guide bar accurate with respect to size. The carrier is removed after the side parts are joined.

Abstract: A chainsaw foot for supporting the weight of a chainsaw during substantially vertical use and for fixing the angular orientation between the chainsaw guidebar and the material to be cut. One side of a hinge is attached to a substantially flat baseplate having a rectangular aperture therethrough. The other side of the hinge is attached to a U-shaped clamp. The chainsaw guidebar is removably fixed between the legs of the U-shaped clamp by set screws. A slotted adjusting bracket is fixed to the baseplate proximate to the U-shaped clamp. A locking means attached to the U-shaped clamp engages the slot of the adjusting bracket to thereby allow a user to set and lock the angle of the chainsaw guidebar with respect to baseplate and, consequently, the material to be cut.

Abstract: A guide bar mounting arrangement for a tree harvester. The tail end of the guide bar is provided with a center slot and pin receiving slot at each side thereof. A sliding block has a center boss and pins permanently or removably mounted therein at the sides of the boss and the combination is slidably mounted in a fixture or base member fixedly secured to the harvester adjacent a drive sprocket. The guide bar is fitted to the sliding block center slot receiving a center boss of the sliding block and the pin receiving slots engaging the pins of the sliding block. A saw chain is entrained around the guide bar and drive sprocket and the sliding block moved relative to the sprocket to tension the saw chain. The sliding block is forced against the base member to clamp the bar in position.

Abstract: A chain saw guide bar includes outer side surfaces, a longitudinal groove having side walls, and two edge surfaces. Each edge surface interconnects a side wall and an outer side surface to form therewith inner and outer corners, respectively. To edge-harden the guide bar, the edge surfaces, inner corners, and outer corners are heated above 750.degree. C. Then, the edge surfaces and inner corners are rapidly cooled, i.e, quenched, but the outer side surfaces are cooled more slowly, whereby the inner corners are given a higher hardness than the outer corners.

Abstract: Chain saw guide bar comprising three plates joined by welding, having a nose, a clamping area and a guiding groove for the chain, where the bending stiffness in a zone immediately in front of the clamping area is increased by omitting welds in the zone to make sure that the compressed plate buckles outward when overloaded. The zone extends in the longitudinal direction of the bar for a distance greater than the groove depth and less than the bar width.

Abstract: A guide bar for a saw chain of a motor chain saw has a single member steel plate having a center plane and a circumferential guide groove for guiding a saw chain extending in the center plane. The steel plate has a longitudinal extension and a height perpendicular to the longitudinal extension. The steel plate has a cutout extending over a portion of the longitudinal extension and over a portion of the height. A filling member, consisting of a casting material having a smaller density than the steel plate, is cast into the cutout. The cutout has a circumferential edge facing the filling member. The circumferential edge has undercuts uniformly distributed along the circumferential edge. The filling member has a shrinkage rate of at least 0.5% for engaging positive-lockingly the undercuts upon solidification of the casting material to thereby create a uniformly distributed pretension within the center plane of the guide bar in the unloaded state of the guide bar.

Abstract: A chain saw guide bar is formed of a middle plate and a pair of side plates affixed on opposite sides of the middle plate. One (or both) of the side plates carries nozzles for emitting liquid dyes of different respective colors. Channels for conducting liquid dyes to the respective nozzles are formed by grooves cut in the interface between the middle plate and a side plate. Each channel is surrounded by a laser weld which completely isolates the channels from one another to avoid mixing the colors. The laser welds also secure the middle and side plates together. Additional laser welds secure the middle and side plates together, the additional laser welds being discontinuous.

Abstract: A guide bar for a saw chain has a sort-shaped base member made of solid material, having a front end with a deflection area for a saw chain and a rear end for connecting the guide bar drive unit. The base member has outer lateral surface extending from the front end to the rear end and a longitudinal central axis extending from the front end to the rear end. The base member has a main body and a separate front member welded to the main body so as to have a welding seam on at least one of the lateral surfaces. The base member has an edge with a continues circumferential groove for receiving and guiding the saw chain.

Abstract: A guide bar for a saw chain of a motor chainsaw has two side plates having a longitudinal extension. At least one longitudinal stay for fixedly connecting the side plates to one another is provided such that the side plates are positioned substantially congruent and parallel to one another and define a peripheral guide groove therebetween. The longitudinal stay preferably extends in a direction of the longitudinal extension over most of the longitudinal extension of the side plates. The longitudinal stay has contact surfaces and the side plates have support surfaces extending perpendicular to the center plane of the guide bar extending parallel to the side plates. The contact surfaces rest on the support surfaces.

Abstract: A guide bar coding system which permits a user to easily and correctly match a saw chain to a saw guide bar. The guide bar has a laminate or multi-layer structure, and includes a recessed surface that is colored or painted to define guide bar indicia which is indicative of characteristics of the guide bar. Replacement saw chains have saw chain indicia which indicate characteristics of the saw chain. A user selects an appropriate replacement saw chain by matching the saw chain indicia to the guide bar indicia.

Abstract: A guide bar for a motor chain saw has a guide bar member having a peripheral guide groove and peripheral shoulders for guiding a saw chain in the peripheral direction of the guide bar member. The drive members of the saw chain engage the guide groove and the lateral connecting members of the saw chain are guided on the shoulders. Wear protectors, made of a material that is more wear-resistant than the guide bar member, are provided. The wear protectors are connected to the peripheral shoulders so as to extend at least over a portion of the guide bar member in the peripheral direction. Each wear protector has a first wear surface facing the drive members of the saw chain and a second wear surface facing the lateral connecting members of the saw chain. At least one of the first and second wear surfaces of each wear protector has at least one peripheral recess extending in the peripheral direction.

Abstract: A chain saw guide bar having identifying indicia to aid in the selection of a replacement guide bar and/or saw chain. A colored insert is installed in an aperture of the guide bar. The insert is colored to indicate the proper type of chain for the guide bar. Characters are stamped into the insert to indicate the mounting tail of the guide bar and the length of the saw chain required for the guide bar.

Abstract: A sickle apparatus employing an endless cutter mechanism is provided wherein its modular construction allows the size of the apparatus to be readily tailored to variously sized equipment. Traveling blades are attached to the hollow pin drive chain by fasteners extending through the hollow pins to facilitate repair with a minimum of downtime. The use of liner material prevents a pivoting or twisting of the chain to stabilize the traveling blades while minimizing wear and tear. A positive attack of the traveling blade relative the fixed blade provides for a positive cutting action.

Abstract: Guide bar for saw chain, where the chain is supported by a nose sprocket while traversing the front end. Regions of the edges of the guide bar are locally hardened to a higher hardness than the rest of the guide bar. The regions of hardness are where the chain impacts the bar near an attachment end of the guide bar after having left the drive sprocket of the power socket, and where the chain settles on the guide bar edge after having been supported by the nose sprocket while traversing the nose curvature, where a cutting action occurs on the bar, but omitted in an area delineated from a point adjacent the oil holes at the attachment end to a point before where a majority of the cutting action occurs.

Abstract: The invention relates to a guide bar for the saw chain of a motor-driven chain saw. The guide bar has a guide groove which extends about the periphery thereof wherein the saw chain runs. The guide groove is delimited by two side plates which are tightly connected to each other and are held at a spacing relative to each other. The side plates are also approximately coincident with each other. At least one of the side plates has a connecting part which projects in a direction toward the other side plate. This connecting part lies with a contact surface on a corresponding counter surface of the other side plate. The connecting part of a side plate extends through the guide groove up to the other side plate and there contacts with its contact surface the counter surface of the other side plate. The contact surface and the counter surface lie approximately perpendicular against each other. In this way, a simple manufacture of the guide bar and an easy assembly thereof is guaranteed.

Abstract: A chain saw guide bar allowing spraying of the cut surface of a stump with liquid, is made from three joined plates with a spraying device comprising one or more supply channels provided as cutouts in the central plate. A plurality of spraying holes are provided in one or both side plates. The spraying holes are offset towards the guide bar edge so far that less than the entire area of spraying hole area overlaps the edge of the supply channel.

Abstract: The invention is directed to a guide bar for portable motor-driven chain saws. The guide bar includes two steel side parts and a center part connected to the side parts. The weight of the guide bar is kept optimally low while at the same time providing adequate stability and the longest possible service life by providing cutouts extending in the longitudinal direction which are provided with a filler of a material having a lower specific gravity. The cutouts of the side parts and the cutout in the center part filled likewise with a lighter material are arranged so as to not coincide with each other when the guide bar is assembled. In this way, a form-tight mounting for the filler is formed in the side parts and in the center part.

Abstract: The invention is directed to a guide bar for guiding the saw chain of a motor-driven chain saw. The guide bar of the invention has a lamellar configuration and is not made of three parts as are conventional guide bars. Instead, the guide bar of the invention is made of two side parts. The two side parts are connected by means of spacers which are configured as projections on at least one of the two side parts. The side parts can be frames having large inner openings and are preferably stiffened. The connected frames define a composite frame which can be filled with plastic. The spacers determine the spacing of the side parts and therefore the width of the guide groove for the saw chain. The invention is also directed to a method of making the guide bar.

Abstract: A chain saw guide bar comprises an elongate plate member having a rounded tip and providing guide means for a saw chain around its periphery. The plate member has a network of intercommunicating passageways provided between its lateral faces and extending between multiple points on its upper and lower periphery so as to permit the flow of fluid therebetween. This arrangement provides efficient transfer of lubricant or other medium to all points on the guide bar periphery and can be up to 30% lighter than conventional designs.

Abstract: A mechanism for tensioning the chain of a chain saw. The apparatus includes a cutting bar around which the chain extends. The cutting bar has a base portion mounted to an operating housing of the chain saw, and a distal portion carried by the base portion at an end thereof remote from the housing. The distal portion of the cutting bar is disposed for sliding extension relative to the base portion of the cutting bar. The distal portion of the cutting bar mounts a sprocket, around which the chain passes, at an outer end thereof. The sprocket is disposed for rotation about an axis. Structure is included to effect extension of the distal portion of the cutting bar relative to the base portion thereof. Tensioning of the chain saw is, thereby, accomplished.

Abstract: A guide bar for a chain saw is preincised so as to form the tip for the chain. The preincised guide bar is placed in a mold having a recess conforming to the curved tip. The space formed by the recess is then filled with a powdery wear-proof material, which is heated and melted so as to weld with the guide bar.

Abstract: A fluid spraying saw bar, and a chain sawing apparatus, such as a tree harvester, having such a saw bar are provided for selectively applying a predetermined fluid pattern of urea on a tree stump during felling, and of paint on a log end during bucking. A bar member supports an endless saw chain and has an elongate chamber therein to receive pressurized fluid from a harvester reservoir. Plural fluid emitting holes extend from the chamber to at least one side surface of the bar member. A tubular or a dual valve plate flow controller is slidably received in the chamber operatively engaged by a harvester actuator to control flow through the fluid emitting holes. For a rot-preventing urea spray, the pattern is adjusted for logs of varying diameter. For a marking spray, a striping spray pattern is selected in response to a harvester computer generated signal to indicate log length, diameter, mill designators, and the like.

Abstract: A guide bar for a mechanical harvester wherein the guide bar is repairable after bending. The guide bar is provided with a bendable section in a limited zone between the mounting bracket and the principal cutting portion of the bar. A hinge area is thereby created in the zone area to permit bending of the bar without breaking. The rails are removed within this hinge area. The saw chain traverses the short railless section during normal cutting action. Upon bending of the bar, the chain assumes its own curvature in traversing the section and will more readily jump the bar when bending forces are so severe as to likely break the chain.

Abstract: A chain saw guide bar assembly includes opposing outer laminates in spaced relation as defined by a wire structure lying generally about the periphery of the laminates, but spaced inwardly of the edge boundary thereof whereby a saw chain groove formation results as defined by an exposed or outward facing portion of the wire structure and exposed portions of the inner surfaces of the outer laminates. The wire structure advantageously provides, in combination with the outer laminates, a containment cavity for a foam-adhesive core laminate which expands upon curing to fill the cavity and to adhere to the inner surfaces of the outer laminates. A very rigid yet lightweight chain saw bar results with less production complexity and cost relative to that of other core laminate chain saw bars.

Abstract: A guide bar for a mechanical harvester wherein the guide bar is repairable after bending. The guide bar is provided with a pliable section of lowered hardness in a limited zone between a mounting bracket and the principal cutting portion of the bar. A hinge area is thereby created in the zone area to permit bending of the bar without breaking. Reduced hardness is tolerated in the zone area where the least cutting action is encountered.