Abstract: The present invention is a device which can be portable and easily attachable and removable from existing dental work station tables. The apparatus comprises a work platform which can be removably connected to the work station table. A suction tube at the work station can communicate with the surface of the work platform. The suction tube can easily be connected and disconnected from the work platform for use in treating the patient, such as providing mouth suction. The apparatus preferably is supported by a mounting means on the work table with the work platform preferably horizontal. Preferably the platform is supported by a support means through which it is attached by the mounting means to the table. The work platform thereby provides both support for the article being worked on and suction to remove debris.

Abstract: A vacuum blasting machine with a sealed waste transfer system has a collapsible sleeve that provides a containment interface between the waste chamber and the waste collection drum. The periphery of one end of the sleeve is secured around the periphery of the opening in the waste collection drum. In the transfer operation, the other end of the sleeve is pulled over the dump housing, providing an impervious containment barrier between the dump housing and the interior of the collection drum. The drum has a vent opening with a bushing to which a vent line is attached. A vent line connects the collection drum to the interior of the waste chamber via a valve.

Abstract: A rotatable foam buff for more efficient application of a finishing liquid to the surface of a workpiece. Excess finishing liquid is precluded from being thrown out from the perimeter of the rotating buff pad, due to centrifugal force, by the configuration of the finishing surface of the pad which includes one or more grooves located wholly within the perimeter of the pad, or, recessed regions that form a groove when pressure is applied to the back of the pad. The groove(s) captures potentially escaping finishing liquid which is then absorbed by the foam pad.

Abstract: This is a method of removing contaminants from an engine pulley by removably attaching an abrasive strip to a belt which is positioned in a pulley groove, for example. The abrasive of the strip faces the pulley. Running the engine causing the abrasive strip to abrade away any dirt, rust or other contaminant on the pulley.

Abstract: A tool having a plurality of changeable pin-shaped tool elements comprises a substantially cylindrical housing having a cavity therein opening to the outside through a passage opening lying substantially on the axis of the housing. This cavity contains a plurality of tool elements spaced regularly about the circumference of the housing and lying outside the axis of the housing in their rest positions, the tool elements each comprising actuating means projecting outwardly of the housing and being movable in longitudinal direction thereof for displacing the respective tool element between its resting position within the housing and an operative position in which it projects outwardly of the housing through the passage opening. Locking means are provided for rotatingly and longitudinally locking each tool element in the operative position.

Abstract: A dustless sanding device includes a base with a hollow chamber and a top opening. Bottom and side inlets communicating with the chamber are arranged on a bottom and sides, respectively, of the base. A pair of spaced apart hollow brackets extend upwardly from a rotating member rotatably positioned within the top opening, and communicate with the chamber through the rotating member. A T-shaped hollow air connector has a transverse portion rotatably positioned between the brackets and in communication therewith. A pair of Wing Nuts at the ends of the base secure a porous sanding screen wrapped around the bottom of the base. A vacuum cleaner can be attached to the air connector for extracting sanding dust produced during the sanding process through the sanding screen.

Abstract: A severing and stripping mechanism for a cable-processing machine which largely obviates the displacement of heavy cable-handling components and the fouling of the knife drive, particularly via insulation particles via the use of a knife drive that is arranged above a plane determined by the cable being processed, wherein two knife pairs are attached side-by-side at the actuation members of the knife drive, with a fixed pivot mechanism being attached on a machine frame via which, after the severing of the cable with the first knife pair, the one cable end is pivoted to the second knife pair, whereafter the one cable end is stripped with the second knife pair and that the other cable end is stripped with the first knife pair.

Abstract: A dynamic steady rest particularly adapted for use in supporting a rotating workpiece during a grinding operation. The steady rest includes a lever assembly pivotally mounted on a base and having a workpiece support arm and a counterweight arm. Weights are adjustably secured to the counterweight arm and bias the support arm upwardly and into supporting engagement with the rotating workpiece. The steady rest further includes two dashpots pivotally secured between the base and the support arm to dampen the motion of the support arm.

Abstract: An impact tool for removing bolts includes axially aligned impact section, torque section and shaft. The shaft is configured to extend through a socket to abut a bolt head when the socket is in operative communication with the bolt head. The shaft is additionally configured such that a torque applied to the shaft is transferred to the socket. The shaft defines a shaft face that abuts the bolt head. The impact section defines an impact face on the opposite end of the tool from the shaft face. The torque section is configured such that a torque applied thereto is transferred to the shaft. Accordingly, a blow to the impact face transfers an axial force to the bolt at the interface between the bolt head and the shaft face. Such axial force may tend to break a corrosive bond between the threads of the bolt and the receiving surface. Thus, axial blows to the tool in combination with torque applied to the torque section may tend to loosen and remove frozen bolts.

Abstract: The object of the present invention is to provide an ergonomical and practical, handle-equipped universal striking tool with exchangeable tool bits for use when center-punching, driving cotter pins and nail heads and driving in clips of various kinds, i.e. for such activities where today a hammer is used for striking a separate thumb-grip held object or separate, thumb-grip held tools. The problems with the earlier known technique are a.o. inferior accessibility, tool instability, inferior view, impact injury risks and overloading of the hand, and the problems of looking after a complete tool kit. This object is achieved in accordance with the present invention by a handle (1), which at least at one end is equipped with an at least in one plane pivotably arranged driver head socket (2), to which a driver head (3) is attached, said driver head socket being pivotably and lockably arranged in said handle.

Abstract: Device is described that reduces the forces needed to release a wafer from a wet polishing surface after polishing. Device comprises attachment adapted to be mounted to a polishing apparatus to permit attachment surface, configured to mate with two regions of the wafer, to tilt relative to the polishing surface. Means for defining adhesive force between attachment surface and one of the two wafer regions, and means for defining adhesive force between attachment surface and other of the two wafer regions which is different than that defined between attachment surface and the one wafer region so as to cause a non-parallel relationship between the one wafer face and polishing surface, are provided. Unbalanced force causes a non-parallel relationship between wafer and polishing pad and facilitates separation and lifting of wafer from polishing surface.

Abstract: When a cylindrical single crystal ingot terminating in generally conical parts at the opposite ends thereof is machined with a cylindrical grinder which is adapted to support the ingot in place by fastening the conical parts of the ingot to a spindle side chuck and a tailstock side chuck severally provided with a conical hole and grind and finish the cylindrical part of the ingot while keeping the ingot driven on the spindle side, the ingot is liable to produce idle rotation possibly to the extent of disrupting the grinding work.

Abstract: Disclosed is an air motor having an engine pack (with a rotor provided with front and rear retainers, a stator, and vanes) which can be assembled and replaced even by an unskilled person. An air supply joint is engaged with guide projections formed on the inner peripheral surface of a housing, with its forward end portion held in contact with the rear retainer; the forward end portion being fastened by a nut member which is threadedly engaged with the housing. On the rear face of the forward end portion are formed a plurality of first projections produced of a rigid synthetic resin, and on the front face of the nut member corresponding to the first projection are formed a plurality of second projections, so that a firm relation of engagement is established by an elastic force of restoration of the first projection; that is, the nut member will not accidentally become loose owing to the locking effect of the first and second projections.

Abstract: Disclosed is a method and apparatus for the blast cleaning of the surface of an object using solid carbon dioxide pellets as the abrasive projected by a gaseous carbon dioxide propellent. The method and apparatus of this invention subjects a portion of a quantity of liquified carbon dioxide contained within a storage vessel to adiabatic expansion to provide a solid phase carbon dioxide and then compressing or extruding the solid phase carbon dioxide to form a plurality of pellets. Another portion of the liquified carbon dioxide is vaporized to provide a volume of gaseous carbon dioxide at above atmospheric pressure which is then used as a carrier and propellent to project the carbon dioxide pellets against the surface of the object to be cleaned. This invention eliminates the need to use a separate compressed air or nitrogen propellent system for a blast cleaning operation.

Abstract: A method of resharpening the knives in a chipping machine while they are installed in the knives' rotor is disclosed. For this purpose all knives are moved forward one after another to their functional position by an amount that corresponds to the wear of the edges. As part of this, the radial grinding feed which is required in order to achieve the desired protrusion of the edges above the relevant area of the knives' rotor is pre-programmed based on the detected state of wear. A device to implement this method is also disclosed. The device comprises a rotational disk for the knife rotor placed on top of a machine frame and where an equipment table is provided that supports a cross-wise translatory moveable grinding unit, as well as a radially moveable adjustment device which has a sensor to determine the state of wear of the relevant area of the knife rotor 8 and a stop face to limit the knife feed.

Abstract: An apparatus is disclosed for linearly displacing a rotatable spindle relative to an object. The apparatus includes a support that is connectable to the spindle such that translation of the spindle relative to the support in a first direction is restrained, a rotatable shaft which is connected to the support such that translation of the shaft relative to the support in the first direction is restrained, and a rotational drive system rotatably connected to the shaft and rotatably connectable to the spindle, to transmit rotational drive from the spindle to the shaft. The apparatus also includes a contact piece eccentrically mounted to the shaft, wherein the contact piece has a contact surface thereon for contact with the object. Rotation of the shaft varies a distance, measured in the first direction, between the support and a portion of the contact surface contacting the object, such that the spindle is linearly displaceable relative to the object.

Abstract: The machine comprises an automotive vehicle (1) and at least one grinding carriage (2). During the grinding operation of the rail, the automotive vehicle (1) is standing still, immobile with respect to the railroad track, whereas the grinding carriage (2) displaces itself reciprocally along the track. The distance between the the carraige (2) and the vehicle (1) is thus variable.

Abstract: A method of microdeburring a selected portion of bore in a workpiece with a jet of abrasive gas is provided that is particularly applicable to the removal of microburrs at the interface between the timing and metering spill ports in a fuel injector metering barrel and the plunger bore. In the method, the nozzle that emits the abrasive gas is first inserted in and aligned with the bore so that the jet is focused on the microburrs at the interface. The nozzle is then actuated for a time period long enough for the jet to remove the microburrs from the bore, but insufficient for the jet to cause unwanted radiusing of the bore at the interface that could degrade the timing characteristics of the fuel injector. The method also includes the step of interposing a shield within the metering barrel to mask off the finished surface of the barrel from unwanted abrasion.

Abstract: A reversible ratchet wrench includes a main body, a drive gear housed within a gear end of the main body, and a pawl assembly housed within a pawl end of the main body. Further included are a reversing lever, a screw for securing the reversing lever to the pawl assembly, and a coverplate for retaining the drive gear and pawl assembly within their respective gear and pawl ends in the main body. The coverplate is coupled to the screw in a way which permits rotation of the reversing lever relative to the coverplate.

Abstract: The invention relates to a device for opening screwed lids or rotating various objects. The device comprises a handle with two portions, and a loop fastened to one handle portion. The loop is tightened around the edge of the lid by squeezing the handle portions against each other, whereby a cam in the handle portion locks the loop relative to the handle, and a loop and the end of the handle portion close to the lid move closer to each other, which increases the tightening of the loop around the lid.