Abstract: A sharpening machine for sharpening toothed saws comprises a support for a saw blade supporting the blade for rotary adjustment in a direction of feed. A carrier is mounted for rotation about a tilting axis. A lifting carriage is mounted on the carrier. A spindle head is mounted on the lifting carriage. A grinding wheel is rotatably mounted in the spindle head. The lifting carriage is mounted to the carrier for swiveling movement about a swiveling axis which intersects the axis of the spindle head. The lifting carriage is rotatable at least 180.degree. from a standard position in which the spindle head axis is located in or parallel to the plane of the saw blade. The tilting axis of the carrier is oriented perpendicular relative to a plane containing both the spindle head axis and the swiveling axis. The carrier is rotatable in a range of at least 90.degree. about the tilting axis.

Abstract: Disclosed herein is a method for rotating the bushings of an assembled and in-place track of a tractor to present new bushing wear areas to the sprockets which engage these bushings.

Abstract: A portable lightweight angle grinder is disclosed having a motor housing with a handgrip and throttle lever, a rotary air motor driving a motor spindle, an elongated air-cooled tubular extension housing adjustably mounted on said motor housing, a work spindle near the end of said extension, toothed pulleys on the work spindle and the motor spindle, and an endless neoprene belt within said extension housing with teeth that mesh with the teeth of said pulleys. The unique toothed belt drive requires no lubrication, operates efficiently at speeds up to 25,000 revolutions per minute and at least twice that normally used in conventional angle grinders using gear drives, and can be maintained in service at a fraction of the cost of the prior devices.

Abstract: A method of cold-forming a substantially right-angle final bend in a chisel-type saw-chain cutter link. The method involves the progressive, staged shifting of a bend, and of the inside and outside corners therein, in a cutter blank from a starting, greater-than-right-angle bend line toward an adjacent, substantially parallel, final substantially right-angle bend line. Subsequent to the making of an initial bend in a blank, the making of later shifted bends is accompanied by the flowing of material in the blank toward the region of the later-produced bends.

Abstract: Two plier elements are pivotally connected so that squeezing the handles together clamps the jaws against a glass sheet adjacent a score line. The actual clamping force is limited because the handles are made from a yieldable plastic such that the handles actually touch one another, preventing a predetermined clamping force from being exceeded. The jaws and handles are molded integrally in each plier element, and metal inserts are provided for the jaws.

Abstract: Tool sharpening apparatus including a base member having a first support carrying a floating head and a second support for receiving the tool to be sharpened and for holding the same in proper position. A sharpening element, such as a file, is mounted for longitudinal reciprocal movement on the floating head for sharpening the tool. The floating head member is biased away from its support member and is movable vertically to move the file into and out of engagement with the leading edge of the tool so that slight pressure on the file on the forward stroke moves the assembly down into engagement with the tool, and release of such pressure when pulling the file back allows the file to be urged away from the tool.

Abstract: A combination screwdriver and reamer has a blade with edge means for deburring the internal diameter of cut conduit or tubing. An effective tool is provided to serve as a general purpose screwdriver having the added reaming or deburring capacity. The tool is constructed so that the reaming or deburring structure does not interfere with the screwdriver function.

Abstract: A plier-type tool having opposed jaw members and elongated handle portions is provided with a retractable wedge member for removing knitting machine needles which have broken butt portions. The wedge member is formed at the outwardly protruding end of a spring-loaded shaft member which is slidably mounted on the plier tool. The wedge member tip portion forces the needle butt from within the needle slot and allows the plier tool to move inward to grasp the broken butt between the opposed jaws for withdrawal of the needle completely from the needle slot.

Abstract: A fabric-marking apparatus, wherein the upper end portion of a syringe-like or tubular needle for piercing superposed fabric pieces contains an ink pump to which a vertically disposed ink tank is connected; an elastic valve member is fitted in a liquid-tight state between the lower end portion of the cylindrical ink pump and the bottom section of the ink tank; when a plunger concentrically received in said cylindrical ink pump is drawn out therefrom by the descent of the tubular needle, then the elastic valve member allows marking ink to flow from the tank into the cylindrical ink pump; and when the plunger advances into the cylindrical ink pump by the rise of the tubular needle, then a fine aperture formed in the elastic valve member is opened to discharge marking ink from the cylindrical ink pump into the tubular needle.

Abstract: An improvement in the pressure selector of a toggle type wrench, provides a visual means of selecting and adjusting the amount or degree of pressure that will be applied to the workpiece during clamping, thus reducing the possibility of damaging the workpiece by applying to much pressure.

Abstract: A tool in its preferred form includes a body, a file carried by the body for filing the bottom and side edges of a ski, a scraping blade carried by the body to remove excess wax and filler and to press wax into the ski surface, and a cork block to serve as a handle and to polish a ski bottom surface. The body may be of any desired shape but is preferably right triangular in planform and shallow compared to its lateral and longitudinal dimensions. A first face has a seat for a file along its diagonal aft margin and a guide wall along its longitudinal side margin which guides the body for longitudinal movement along the ski with the file crossing the ski bottom diagonally. The forward end contains a seat to hold a scraper blade for scraping excess filler and wax from the bottom and for pressing wax into the ski surface. The cork block protrudes from the second face of the body to serve as a handle and also to polish the waxed ski surface.