Abstract: A radial grip remote control for the operation of abrasive blast machines. The handle of the grip is permanently attached to a linear bearing. The bearing utilizes the abrasive blast hose as a journal, and may be rotated manually by adjusting the radial position of the handle. The inside diameter of the bearing is adjustable. The adjustment is intended to allow the bearing to rotate freely about its journal (hose), and to cause seizure of the bearing to this journal when the hose is pressurized. The steel handle acts as a protective housing for a positive shut-off type valve which is internally installed. The remote control is designed to be ergonomically accommodating and to increase the safety of abrasive blasting operations. The base of the handle comprises a female connecting socket for adaptation to automated or remotely operated abrasive blast systems.

Abstract: A radial locator is carried by the bed of a cam lobe grinding machine proximate the workpiece chuck. An initial locating pin is carried by the chuck to sense a rough locating hole in a sprocket carried by a cam shaft to be disposed in the chuck to have its cam lobes ground. A timing tooth is provided on the sprocket in proper proximity to the rough locating hole and for coaction with complimentary locating teeth carried by a rockable locating arm of the radial locator. An actuating arm carries the locating arm for movement between an at rest disposition and a rocked disposition wherein the locator teeth coact with the timing tooth to rotate the sprocket, cam shaft and cam lobes to a final position for proper grinding of the cam lobes. A rotary actuator moves the actuating arm an locating arm between their respective dispositions.

Abstract: A granulator and delivery system for sublimable CO.sub.2 granules has working edges rotatably supported for defining a cutting surface; a driver for powering the working edges; a feeder for advancing solid CO.sub.2 into contact with the working edges, the working edges removing the granules from the solid CO.sub.

Abstract: A spherical member polishing apparatus has a fixed disk which is disposed in opposition to a rotating disk with a predetermined clearance. The rotating disk is rotated, and spherical members are clamped and pressurized between the rotating disk and the fixed disk for roll-polishing the spherical members. A plurality of grooves are formed along a circumferential direction of the fixed disk, and a plurality of working-fluid supply ports are randomly formed along the circumferential direction between the grooves, between the groove and an outer peripheral portion of the fixed disk, and between the groove and an inner peripheral portion of the fixed disk. The working fluid is supplied through the working-fluid supply ports to the fixed disk. A large number of spherical members are polished at a high precision, while a variation in polishing precision and the like are avoided as much as possible.

Abstract: A device for sharpening dental instruments is disclosed. The device is particularly advantageous for sharpening and shaping dental curettes and universals. The device is comprised of a generally rectangular and elongate wedge-shaped ceramic stone. The stone has a planar front surface and a planar back surface, the surfaces are obliquely positioned with respect to each other. A rounded top lip and a rounded bottom lip join the front surface and the back surface. The top surface has a groove, semicircular in cross-section, extending lengthwise. The groove is sized to receive the toe portion of dental curettes or universals for sharpening and shaping.

Abstract: A method and system for removing a surface layer contaminated with radioactive and/or hazardous material and subsequently treating the waste to remove contaminants and provide an essentially contaminant-free final effluent. The contaminated material is removed by blasting the surface with a pressurized stream of air and sodium bicarbonate abrasive media, and the media is dissolved in water subsequent to the blasing operation. The resulting waste is treated in a sequence of steps including adjustment of pH, aeration and separation into primarily solid and liquid phases by precipitation of solids, which are removed for appropriate disposal. The primarily liquid phase is successively passed through a particle filter, a granulated activated carbon filter and a polishing unit to produce the clean final effluent.

Abstract: A buckle chute folding machine is described which has a single selector knob which selects a variety of fold patterns by simultaneous adjustment of the position of a stop blade in a buckle chute and a deflector bar positionable with respect to a nip roller set to either prevent or allow a second fold to be executed. An automatic paper feed system is provided to feed sheets from a holder tray, each sheet advanced incrementally into the machine to preclude double or overlapped feeding of the sheets through the nip roller sets.

Abstract: A flange lock 10 for retaining a disc or blade on a spindle of a power tool and for facilitating removal therefrom, comprising a support member 22 for threadedly engaging a spindle of a power tool, a plurality of cam devices 30 mounted through the support member 22, a pressure plate 44 for applying pressure to a flange of a disc or blade to hold the disc or blade on the power tool, the pressure plate 44 including a cam surface 46 for bearing against the cam devices 30, and a housing for receiving the support member 22, the cam devices 30 and the pressure plate 44 and including means 14, 34 for driving the cam devices 30 between an active position (FIG. 3 ) in which the pressure plate 44 is held spaced from the support member 22 and an inactive position (FIG.

Abstract: A device is described for manual assembly and removal of a working disc in a manual tool for machining surfaces. The tool comprises a hub on which the working disc is screw-fastened and that is rotatably held eccentrically by a support casing made to rotate on its own axis by a driving shaft. The device comprises a pushbutton that can be accessed from the outside and that can slide between an at rest position and a position where it engages one of its ends with a mechanical element integral with said hub to prevent the rotation of the hub while the working disc is screwed or unscrewed.

Abstract: A speed wrench is formed by threadedly connecting a handle extension to the end of a ratcheting wrench handle opposite the wrench head for increasing torque of the handle. The wrench handle opposite the head is centrally bored for slidably receiving a rod member hingedly connected with the handle extension permitting the handle extension to be disposed normal to the longitudinal axis of the handle and moving the wrench handle in speed wrench fashion through a selected arc in tightening or loosening a nut.

Abstract: A screwdriver with slidably stored tool head module, comprising a casing and at least one cartridge slidably received in the casing and formed with multiple chambers for containing a module of multiple tool heads. The casing has a front end for engaging with a support rod in which a tool head is exchangeably fitted, and a rear receptacle for receiving the cartridge. A pushing lever is lengthwise disposed on a lateral side of the cartridge and the casing is formed with a lengthwise guiding channel on a lateral side for receiving and lengthwise slidably guiding the pushing lever. The cartridge is easily lengthwise movable outward from the casing for selectively taking out a tool head of the module from the cartridge or placing a used tool head into the cartridge.

Abstract: The present invention is related to an abrasive tool comprising a core and abrasive segments attached to said core wherein said abrasive segments comprise a bond material and superabrasive grains and wherein said segments comprise at least two circumferentially spaced regions and wherein said superabrasive grains are alternately dispersed in said regions in high and low concentrations of superabrasive grains. The present invention is further related to an abrasive tool comprising a core and abrasive segments attached to said core wherein said abrasive segments comprise a bond material and superabrasive grains, wherein said abrasive segments comprise at least two circumferentially spaced regions and wherein said superabrasive grains are alternately dispersed in every other region.

Abstract: A process and apparatus for the finish grinding of cutting blades of a cutting tool head of a granulating device for thermoplastic material in which a grinding wheel is supported for rotation about a vertical axis with a grinding surface of the grinding wheel facing upwardly and the cutting blades of the cutting tool head rest on the grinding surface of the cutting tool head under the weight of the grinding wheel. The cutting tool head is free for vertical movement and is precisely aligned with the axis of rotation of the grinding wheel. The grinding wheel is driven by a motor around a vertical axis to grind the cutting surfaces of the cutting blades and produce precision ground surfaces on the blades which are aligned in a common plane.

Abstract: In a polishing method for polishing a work (W) by a rotating buff wheel (12) while polishing agent (B) is supplied between the polishing surface (121) of the buff wheel (12) and the surface of the works (W) to be polished, the surface of the work (W) to be polished is polished while the polishing surface of the buff wheel (12) is moved back and forth relative to the surface of the work (W) to be polished.

Abstract: A workpiece locating unit is receivable in a T-slot formed in a workpiece supporting table member and provides a pin or other locating device cooperable with a locating feature on a workpiece to aid in accurately positioning the workpiece on the work supporting surface of the table member. The unit has four corners each providing an abutment surface for engagement with one or the other of two vertical slot surfaces. Two diagonally opposite ones of the abutment surfaces are rigid and the other two diagonally opposite ones of the abutment surfaces are resilient. The resilient abutment surfaces resiliently engage the two vertical surfaces of the slot and urge the unit about a vertical axis to hold the rigid abutment surfaces engaged with the vertical slot surfaces eliminating lateral looseness between the unit and the table member and providing accurate positioning of the locating device of the unit as the unit is moved from one position to another along the length of the slot.

Abstract: An abrasive wheel has a central support and an abrasive ring releasably and exchangeably fastened thereto and which on the one hand bears against an annular flange connected with the support and is braced against this by means of a locking ring and a locking flange.

Abstract: A method and apparatus for "blending" air bearing rails of a magnetic air bearing slider used to carry a recording mechanism over a magnetic recording medium. In accordance with the present invention, a slider is held at a fixed angle with respect to a at least one essentially flat, abrasive blending surface, preferably configured as an elongated bar having a blending surface. The relative angle of the slider with respect to the plane of the blending surface causes an edge of a slider rail to make contact with the blending surface. A relative motion of the blending surface with respect to the slider in two generally orthogonal directions abrades the edge of the slider rail, generating a contoured edge, or "blend" on the slider rail which allows the slider to fly at approximately the same height over a disk medium over a broad range of skew angles and radial distances.

Abstract: An outer surface of a cam on a camshaft extending along a camshaft axis is honed by continuously rotating the camshaft about its axis, holding a grinding stone adjacent the cam with a surface of the stone directed radially inward at the cam surface, urging the grinding stone radially of the axis against the stone and thereby pressing the cam surface radially inward against the cam surface for contact of the stone surface along a line with the cam surface, and continuously displacing the stone surface in a direction generally tangential of the camshaft axis and thereby continuously moving the contact line between the cam and stone surfaces. Thus the contact line between the stone and the cam will move continuously, so that wear will not be concentrated in one location and the stone will not wear to fit in surface contact on the cam. The cam surface includes a part-cylindrical base region coaxial with the camshaft and a lobe region projecting radially outward from and joined to the base region.

Abstract: A quick-change method for holding a workpiece on a worktable includes the step of providing at least one tombstone module (a workpiece support structure) for holding the workpiece, and a receiver assembly for removably holding the tombstone module on the worktable. The method proceeds by mounting the receiver assembly on the worktable, mounting the workpiece on the tombstone module, and removably mounting the tombstone module on the receiver assembly. In line with the above, an apparatus for holding a workpiece on a worktable (a modular tombstone assembly) includes at least one tombstone module for holding the workpiece, and a receiver assembly for removably holding the tombstone module on the worktable.

Abstract: In a method of grinding ball grooves formed in a workpiece with a grind stone, the grind stone is fed in a direction of a longitudinal axis of the ball groove in a condition in which an axis of rotation of the grind stone is inclined in the direction of the longitudinal axis of the ball groove relative to a plane which perpendicularly crosses the longitudinal axis of the ball groove. An apparatus for grinding the ball groove has an apparatus bed which is movable in a direction of a longitudinal axis of the ball groove relative to a work holder for holding a workpiece, a supporting bed which is provided on the apparatus bed, a grind stone holder which rotatably mounts on a front end thereof a grind stone for grinding the ball groove, and an electric motor and a gear mechanism for rotating the grind stone. The grind stone holder, the electric motor and the gear mechanism are mounted on the supporting bed.