Abstract: A drive sprocket for use with an elongate, endless saw chain, the sprocket being a substantially cylindrical member having pockets spaced circumferentially thereabout for receiving drive tangs on the saw chain with sprocket edge margins adjacent the tang-receiving pockets providing support for bottom surfaces of the side links of the saw chain. The pockets have enlarged clearing portions opening radially outwardly from the sprocket which are wider than remainder portions of the pockets. The clearing openings are configured and positioned to allow debris to clear radially from the pockets.

Abstract: The specification discloses a completely outside sharpenable saw chain of the chisel type in which top plate portions are sharpened on their tops and in which side cutter portions are sharpened on their outer sides. The chain has allochiral cutter teeth each having a top plate portion sloping rearwardly and downwardly and joined along one side edge to a side slitter plate portion sloping rearwardly and inwardly, a bent over shank portion, a body portion and a depth gauge portion, the top plate portion, the side slitter plate portion and the shank portion being generally C-shaped. The top plate portion has at its top a sharpenable surface forming a top cutting edge which joins a corner chisel point from which extends downwardly and rearwardly a side slitting edge formed by a side plate sharpenable surface.

Abstract: A circular saw blade having a plurality of circumferentially-spaced cutter teeth projecting radially outwardly therefrom. A portion of the periphery of the blade rises gradually as it progresses toward the front face of a tooth to provide a depth gauge to control depth of cut. A chip clearing channel extends radially inwardly along the body of the blade adjacent the front face of the tooth. A pocket formed in the body has edge margins which receive and support front and rear surfaces of a cutter tip.

Abstract: A cutting tool for use in applications wherein a kerf is formed during the cutting operation. The cutting tooth is formed on the cutting tool including a rearwardly angled inner relief surface against which the material being cut is impacted. A secondary surface intersects the inner relief surface and extends forwardly of the point of intersection at an angle relative to the direction of cut that is oppositely directed but generally equal to the inner relief surface. The force of the material being cut that is deflected onto the secondary surface is outwardly directed and counterbalances the inwardly directed force imparted onto the inner relief surface.

Abstract: A circular saw blade having a plurality of circumferentially-spaced cutter teeth projecting radially outwardly therefrom. A portion of the periphery of the blade rises gradually as it progresses toward the front face of a tooth to provide a depth gauge to control depth of cut. A chip clearing channel extends radially inwardly along the body of the blade adjacent the front face of the tooth. A pocket formed in the body has edge margins which receive and support front and rear surfaces of a cutter tip.

Abstract: A resilient rail fastener having a clip having a lower leg with a toe at one end and a heel at the other, an upstanding back portion between the heel and an upper leg, and a rectangular locating aperture in at least one of its legs which engages over a rectangular retaining block. The retaining block has pressure imparting means projecting from each side and bearing downwardly on the upper leg of the clip and thereby applies a downward pressure at each end of the lower leg. One end of the lower leg bears downwardly on the rail support and the other end on the rail to impart a toe pressure. The reduced cross-sectional area of the clip where it passes over the retaining block causes high stresses in the legs of the clip as well as at the locality of the clip heel, and the upstanding back portion has less stress than a hairpin clip, and this results in a lower spring rate for the toe clip so that toe pressure is retained upon rail settlement, and stress corrosion is reduced.

Abstract: Apparatus and methods for replacing or repairing missing or damaged abrasion resistant wearbars utilized in high velocity cyclone boilers. A retrofit wearbar having an aperture therein is utilized in conjunction with an end weldable stud wherein the wearbar and stud are placed in position over a damaged wearbar or against the boiler tube in the case of a missing wearbar and the stud end welding technique utilized to fuse the wearbar and stud in place with the damaged wearbar or boiler tube in the case of a missing wearbar in situ. An arc shield is utilized which has a projection from the weld fillet cavity thereof which cooperates in conjunction with the aperture of the retrofit wearbar to provide alignment of the stud in the wearbar and prevent shorting of the stud to the wearbar during the welding cycle.

Abstract: A steel railway sleeper has side walls and an upper wall, the upper wall having two pairs of upwardly formed protuberances, the protuberances of each pair forming respective rail retaining recesses which will hold rails correct to gauge, provide an upstand to which the stud is to be welded thereby reducing stud length, and provide a platform on which the spring clip can be positioned when the rails are assembled to the sleeper.

Abstract: Apparatus and methods for replacing or repairing missing or damaged abrasion resistant wearbars utilized in high velocity cyclone boilers. A retrofit wearbar having an aperture therein is utilized in conjunction with an end weldable stud wherein the wearbar and stud are placed in position over a damaged wearbar or against the boiler tube in the case of a missing wearbar and the stud end welding technique utilized to fuse the wearbar and stud in place with the damaged wearbar or boiler tube in the case of a missing wearbar in situ. An arc shield is utilized which has a projection from the weld fillet cavity thereof which cooperates in conjunction with the aperture of the retrofit wearbar to provide alignment of the stud in the wearbar and prevent shorting of the stud to the wearbar during the welding cycle.

Abstract: A tree is received on a guide and fed toward a rotating disc by a feed roller carried by an arm. The arm pivots to increase the force with which the feed roller engages the tree as the resistance to feeding the tree into the rotating disc increases. Wood chips are cut from the tree by a blade on the rotating disc which slopes upwardly across and generally in the direction of the feed of the tree. The wood chips pass through the disc and into pockets from which the chips are discharged through a duct. The wood chips are also propelled through the duct by an airstream produced by fan blades on the back of the disc. To separate debris from the wood chips as they are cut from the tree, the disc is received in a housing which extends above the disc and a discharge duct communicates with the housing above the upper face of the disc.

Abstract: A method for making a plated soft nose bullet and the product resulting therefrom, wherein a core is formed of a deformable first metal and the entire core is then covered with a second metal by an electroplating process. The electroplated second metal is removed from the forward end of the core to expose a portion of the first metal. The plated core then is formed into its final shape in such a manner that a quantity of unplated core material is extruded from the remaining plated portions to form an unplated soft nose for the bullet.

Abstract: An elongate unitary splitting device having a lower portion of multiangular configuration with a pair of opposed edges converging at a first angle toward a pointed lower end. An upper portion additionally has a pair of oppositely facing, generally planar side surfaces which intersect and extend upwardly from said edges. The angle between the side surfaces is at least as great as the angle of convergence of the opposed edges. A spear-point configuration provided by the lower end produces ease of startup penetration, and the upper portion produces efficient splitting once initial penetration has occurred.

Abstract: A chain saw is provided with a saw chain cassette and a releasable clamping cover for holding the cassette against the side of the chain saw frame. The clamping cover, together with the cassette and the chain saw frame, have aligning surfaces extending in a direction longitudinal of the cassette saw bar for preventing relative rotation between the saw bar and the frame. A tightening mechanism for the cassette is used for urging the saw bar forwardly with respect to its drive sprocket and a further mechanism is provided within the cassette comprising a spring biased shoe for urging the cassette sprocket in a direction for tightening the chain when the cassette is removed from the chain saw frame. A camming device on the frame engages the shoe when the cassette is installed on the frame for holding the shoe away from the sprocket such that the latter can be driven by the chain saw motor drive shaft.

Abstract: A rearwardly sloping, elongated handle is fastened to a unitary, flat metal base plate having a forward log engaging blade portion extending from a horizontally disposed sole portion, and a rearward heel portion joined to the sole portion by means of a curved intermediate section. The blade portion is urged under a log for rocking the same rearwardly over the curved section of the base plate.

Abstract: A saw chain includes a cutter link having a depth gauge with a rearwardly and upwardly sloping edge, and a guard link having a top edge generally paralleling the bottom of the kerf being cut by the saw chain. The guard link is further provided with a steep forward edge inclined upwardly and rearwardly toward the said top edge, and a rearward edge inclined upwardly and rearwardly wherein the rearward most portion of the guard link adjacent the following cutter link depth gauge is beneath a line extending between the top of the cutter link's cutting tooth and the peak of the depth gauge.

Abstract: Method and apparatus for simultaneously welding by the stud end welding technique a stud having two or more ends. The stud includes at least one elongated relatively thin metallic projection from each end of the stud to be welded. The method and apparatus maintains a current density in a given projection sufficient to disintegrate only a portion of each projection with consequent arc initiation upon contact with the base metal such that the disintegration of a given projection will permit the remaining projections to contact the base metal causing a short to extinguish the one arc which has been initiated and consequent disintegration and arcing of the next tip to strike the workpiece which procedure proceeds randomly from tip to tip until the ends of the stud reach the molten metal pools.