Abstract: Jaw plates for removably attaching to the jaws of machine vises extend above the top of the jaw to hold taller workpieces. They are made from aluminum alloy for readily machining to conform to contours of a workpiece not easily held by flat jaw faces. They are sections cut from a special extrusion for enhanced physical properties and economy of production. Through holes are drilled for fastening to the jaw face. The plate has a planar vertical face for lying flat on the vertical jaw face. A second face engages the top horizontal face of the jaw. A groove between the two plate faces ensures the second face engages the horizontal face of the jaw away from the intersection of the faces. Alternatively, material on the plate may conform to the workpiece when hot and retain shape when cool.

Abstract: An intensified machinist vise for supporting and holding work pieces during the machining thereof. The intensified machinist vise includes an elongate housing having a top and a bottom, and also having a first end and a second end, and also includes a first jaw being securely mounted upon the elongate housing, and further includes a second jaw being rotatably and adjustably mounted upon the elongate housing, and also includes a jaw support assembly for supporting the second jaw upon the elongate housing, and further includes an actuator assembly for moving the second jaw toward and away from said first jaw.

Abstract: A pliers having a replaceable gripping member for pliers jaws in the form of a threaded cylinder received in a threaded bore with part of the threaded cylinder extending out of the jaw in which it is mounted to provide a gripping surface formed of a segment of the threaded cylinder. The mating jaw has a recess to receive the projecting segment. A method of renewing the gripping surface includes rotating the threaded member to expose a different portion of the threads in the projecting segment, after removal of damaged threads in the projecting segment by filing the cylinder, if necessary. A hexagonal recess is formed in the end of the cylinder to enable installation, renewal of the segment and replacement of the entire cylinder using an Allen wrench. For non-sparking applications, the pliers are formed of aluminum bronze and the gripping member is formed of beryllium copper.

Abstract: An integral U-shape clamping block structure comprised of a clamping block and a fixation arm respectively extending rearward, and multiple fixation holes and screws being provided sideways on each fixation arm to be incorporated to both sides of a neck of jaw, thus to ensure the clamping strength and expanded width of a clamping surface to improve clamping capability, thus to facilitate combination or retrofit of the clamping block and the neck of jaw

Abstract: The jaw assembly includes a master jaw and an insert jaw. An engagement surface on the master jaw provides a mounting surface for the insert jaw. The master jaw is contoured to provide a minimum of mass opposite the mounting surface and opposite the engagement surface to minimize the total rotating mass when the jaw assembly is in operation. In operation, a force is applied substantially perpendicular to the engagement surfaces between the insert jaw and master jaw such that the engagement surface experiences the force rather than the insert fastener.

Abstract: A vise comprises a base member, a fixed end member having a fixed and jaw thereon, and a movable end member having a movable end jaw thereon. The movable end jaw and the fixed end jaw define a space therebetween which can be increased or decreased by movement of the movable end member away from or towards the fixed end member. Fastening means are provided for respectively connecting the fixed end jaw to the fixed end member and for connecting the movable end jaw to the movable end member. The fastening means have receiving means whereby an attachment jaw can be releasably connected to at least one of the fixed end jaw and the movable end jaw.

Abstract: A fixture for controllably holding a blade and particularly a scissor or scissor element for precise sharpening and shaping including hollow grind and clamshell (convex) sharpening. The fixture comprises an articulable holding arm with at least two movable joints and an extension portion swivelly attached to one of the joints. The extension portion terminates in a holding member for the scissor or scissor element which holding member is freely concentrically rotatable relative to the longitudinal extension axis of the extension portion. The holding member comprises a clamping element for holding the scissor element parallel to the longitudinal extension axis. The extension portion further comprises a position adjustable stop to limit rotation of the holding member to provide a precise angular holding of the scissor element relative to an adjacent sharpening element.

Abstract: A locking jaw assembly having a workpiece clamping top jaw securely interconnectable to a master jaw by a key locator and a lock bolt wherein the top jaw may be readily removed from the master jaw by simply loosening the lock bolt and another top jaw may be readily interconnected to the master jaw with repeatable precision by retightening the loosened lock bolt. The secure interconnection of the top jaw to the master jaw by the key locator and lock bolt is augmented by a lip portion of the master jaw received in a complementary shaped groove disposed on a flange of the top jaw wherein forces exerted by the workpiece on the top jaw tend to move the top jaw into closer contact with the master jaw and relieve tensile stresses on the key locator.

Abstract: A precision clamp blade sharpening system includes a fittably adjustable clamping device attached by means of a support bar to a spring-loaded pin level and an adjustable bar to a sliding bar on top of a housing unit wherein is situated a means for regulating the velocity of the rotation of a circular sharpening disc which performs the function of sharpening scissor and/or other blade edges held in the clamp device by means of adjustable pieces which set the blade edge at a degree setting desired by the user and which clamp device may be extended for use with large circular sharpening discs or replaced with one designed for the sharpening of cuticle nippers and/or the inside parts of other blades.

Abstract: A tool which is adapted to orient a work piece for machining. A first embodiment of the tool is adapted to be removably mounted on the fixed jaw of a pair of relatively shiftable jaws of a machine vise. The tool has an arm pivotally mounted thereon, and the arm has a surface for supporting and orienting a work piece relative to the jaws. A curved slot in the tool for receiving a locking device carried by the arm, whereby the arm can be moved into any one of a plurality of infinitely variable positions with the aid of a protractor to support a work piece when the work piece is between the jaws. Holes formed into the arm receive a pin for supporting the work piece. Other embodiments are a tool for orienting the compound of a lathe.

Abstract: A precision clamp scissors sharpening system which consists of a fittably adjustable clamping device attached by means of a support bar to a spring-loaded pin level and adjustable bar to a sliding bar on top of a housing unit wherein is situated a means for regulating the velocity of the rotation of a circular sharpening disc which performs the function of sharpening scissor and/or other blade edges held in the clamp device by means of adjustable pieces which set the blade edge at a degree setting desired by the user and which clamp device may be extended for use with large circular sharpening discs or replaced with one designed for the sharpening of cuticle nippers and/or the inside parts of other blades.

Abstract: A work piece holding device which includes a rectangular table top supported above the ground at a convenient work height and which has a fixed jaw at one end a facing sliding jaw which may be affixed to the table top at any point along the table either parallel to or at variable angles with the fixed jaw. Two inverted T-shaped slots in the table top provide guides for inverted bolts having parallel bolt head sides which firmly set the sliding jaw at the desired position and angular orientation. A variety of pairs of auxiliary jaw shapes for special jobs and a plurality of short screws placed along one of the jaws for applying resisting torque to one member of a particular pair of the auxiliary jaw shapes at one or more specific locations along that jaw are provided as well as an extender which provides for holding a work piece having a comparatively long dimension.

Abstract: A process for forming a joint for connecting a plurality of bars in a metal casing includes the steps of pouring a granulated solid into the metal casing and prestressing the solid by driving in a mandrel through the filling aperture of the casing. Thereafter, an unsinkable or a low-shrinkage hardening fluid is injected into the metal casing and permitted to harden.

Abstract: A workpiece holding assembly for use on a chuck includes a chuck jaw and an adjustable self-centering workpiece holder. The chuck jaw has an elongated body with opposite ends, a groove defined in one end of the body, and a pair of arcuate recesses formed in the one body end on opposite sides of the groove. The workpiece holder includes a shaft portion and a base portion attached about a midsection of the shaft portion such that the holder has an integral, one-piece construction. The shaft portion is of generally cylindrical shape adapted to extend into the arcuate recesses of the one chuck jaw body end. The base portion is of greater than semi-circular shape and adapted to extend into the groove of the one chuck jaw body end. The base portion also has a generally semi-circular closed slot defined therethrough adapted to receive at least one fastener therethrough being fastenable to the one chuck jaw body for releasably clamping the base portion in the groove.

Abstract: A vise structure has a control handle cooperating with a two-part guide rod means, including respective inner and outer rods mounted telescopically relative to each other. The handle is rotatably supported on the frame and has a limited longitudinal movement thereon. In one longitudinal position, the handle is coupled only to the inner rod for rotation in unison; and the inner rod is linked to a pair of pivotably-mounted vise jaws arranged to move towards and away from each other transversely of the vise structure. In a second position of the handle, both the inner and outer rods are rotated for movement of the pivotably-mounted vise jaws and, respectively, for longitudinal movement of a transversely-arranged elongated vise jaw from one end of the structure to its other end. In a third position of the handle, only the outer end is rotated for movement of only the elongated vise jaw. The vise structure is adapted for a work bench and is arranged to clamp various irregularly-shaped work pieces therein.

Abstract: A clamping device of the type having a pair of clamping jaws mounted on a base, wherein one of said jaws is laterally movable in a direction towards and away from the other jaw, and wherein the other jaw includes a pair of movable clamping jaws arranged laterally of one another. Each movable jaw is multi-layered and includes a pair of movable, pivotable clamping claws spaced vertically of one another. Said clamping claws are each provided with forward multi-faceted portions including at least a pair of planar clamping faces arranged transversely of one another. A non-movable supporting ring member is interposed between the pair of clamping claws. This support member has a forward portion extending substantially inwardly of the multi-faceted planar faces of the respective movable clamping claws. The support member further has a rearward portion provided with a flat edge for bearing against an upwardly-extending base member.

Abstract: Mounted upon the lower jaws of a gripping and manipulating tool is an obtuse-angled adapter plate to which is secured an adjustable work positioner including a stationary work-positioning V-block and a relatively movable work-positioning block provided with a work-holding recess consisting of a notch shaped to fit the edge of the workpiece to be contour ground. The stationary V-block contains a right-angled recess which is shaped to fit and become coaxially centered with respect to a centering portion of rectangular cross-section coaxial with the work-holding spindle of the contour work-turning machine such as a contour grinder. A fastener is provided for clamping the adjustable block to the stationary block and passes through a vertical slot in the adjustable block into a threaded bore in the stationary block.