Abstract: A two-piece adapter for rotatably connecting two fluid transport members, the adapter including a stem for one of the members, and a connector (which may be for example a Luer connector) for the other member. The connector has a collar which is wrapped around the flange to capture the stem. The collar is deformed to wrap around the flange after the flange and the collar are joined. Preferably the adapter is made of a plastic, transparent material.

Abstract: In a process for applying a non-metallic roller coating to the body of a roller, especially for paper machines, a stretch inset (20, 31, 32) with mechanical prestress is applied to the body (10) or to a contact surface (12) of said body but the stretch insert is applied without bonding to said body (10) or to the contact surfaces thereof. A bonding surface is created between the stretch insert (20, 31, 32) and the roller coating (40).

Abstract: Machine for producing friction bearing shells from ribbon-shaped composite laminate material, wherein the composite laminate material is fed and processed in successive stages at a multiplicity of succesive stations until the shells are finished, except for the slide surface processing. The continuous processing includes chip-generating operations arranged to considerably improve the precision and quality of the friction bearing shells that are produced. The ribbon is blanked to produce individual plates which are disposed transverse to the transport direction, making it possible to work on each individual plate without reaction upon other plates. Scrap and chips are removed, preferably at spacing areas. The shells leaving the continuous production line are finished, except for any processing of the slide surfaces.

Abstract: The invention is directed to a method and apparatus for selectively and simultaneously drilling a plurality of holes in thin panels such as printed circuit boards, while providing for automatic changing of the drill bits, individually or plurally, as required. A tray of drill bits is driveable in X and a row of vacuum pickers are driveable in Y, so that the various bit locations of the tray are addressable by such X-Y positioning, and selectable vacuum pickers are extensible and retractable so as to pick and place the drill bits at various matrix locations of the tray. The vacuum pickers also are extensible and retractable through corresponding tray openings in order to deliver replacement bits to, and retrieve used bits from, a flipper assembly associated with each drilling module.

Abstract: A machine tool comprises a spindle stock (12), a tool magazine (20) in which a plurality of grippers equipped with tool holders are arranged to travel along an endless track, and two gripper arms (25, 26; 28, 29) arranged for moving the tool holders between a common pick-up and/or mounting position at the tool magazine and a spindle position at the spindle nose of the spindle stock (12), which has a vertical spindle axis (23, 24). In order to achieve the narrowest possible arrangement for the transfer movement between the pick-up and mounting position and the spindle position, it is provided that both gripper arms (25, 26; 28, 29) operate simultaneously and in opposite directions between their spindle positions and their pick-up and/or mounting positions, which are located on one side of the spindle stock (12), moving along geographical curves evading each other.

Abstract: A construction for electrodisplacive transducers for use in deformable mirrors in which the transducer is assembled from two or more segments of electrodisplacive material. Each segment contains multiple stacked layers of electrodisplacive material which are separated from adjacent layers by electrodes. During manufacture the segments may be individually tested and sorted by the stroke that they produce for a given electrical input signal applied to the stacked layers. Segments are selected and fastened to each other so that the total stroke produced by the selected segments equals the stroke required from the actuator.

Abstract: A control device, switch unit therefor and methods of making the same are provided, the electrical switch unit comprising a switch having a movable actuator, a lever pivotally carried by the switch unit and having one end adapted to be operatively interconnected to a movable part of a control device so as to be pivoted by the movement thereof, the lever being operatively interconnected to the actuator to operate the switch between the different conditions thereof in relation to the pivoted position of the lever, and a pair of mounting plates respectively having holding structure that hold the switch between the plates and respectively having pivot structure that pivotally mount the lever between the plates whereby the plates, the switch and the lever form a self-supporting switch unit.

Abstract: The invention is directed to a long-hair trimming device for dry shaving apparatus, with a cutting comb arranged fast with a housing and having an abutment surface for engagement with an abutment surface of a cutting blade which is coupled to a carrier body via at least one driving member, the carrier body being adapted to be driven by a drive means, and with at least one pressure spring bearing with one end against the carrier body while its other end takes support upon the housing, wherein the carrier body provides on the side close to the cutting teeth of the cutting blade a slightly protruding seating edge made of a plastics material and having its cross-sectional profile tapering in the direction of the cutting blade, wherein the seating edge rests against the cutting blade in the area of the root of the cutting teeth, and wherein an optimum abutting engagement of the cutting blade with the cutting comb is accomplished by deformation of the seating edge and the cutting blade by means of the force the pre

Abstract: A razor blade assembly is provided having a molded plastic body member with a guard member mounted thereon. The body member comprises wall structure defining a pair of slots for receiving a blade means, and forming a support means on which the blade means rests. The blade means comprises a pair of cantilever spring portions formed in the blade means got contacting the support means when the blade means is disposed for slidable movement in the slots whereby the blade means is resiliently mounted in the body member.

Abstract: A razor formed as a unitary moulding comprises a main body 1 including a cap member 3 and two side walls 4 and a guard member 6 connected to the body 1 by spring fingers 7 and living hinges which permit the guard member to be located in guide means 9 which guide the guard member for limited displacement during shaving.

Abstract: A tool for use on armored cables which includes a pair of gripping jaws for tightly gripping the armored cable, a cutting edge for vertically cutting in a straight manner a metal sheath of the armored cable, a plurality of stripping members for readily stripping the wire insulation within the armored cable, a pair of blades for easily cutting the electric wire of the armored cable, and a jaw adjustable member for adjusting the gripping jaws so as to provide for treatment of any size armored cable, whereby the tool has multiple functions, such as a metal sheath cutting, insulation stripping, and electric wire cutting functions for convenient use to treat armored cables.

Abstract: A cutting tool is designed to cut through plastic pipe from within. This operation is required when a pipe is mounted in a floor or wall and must be cut off below the level of the floor for installation of plumbing fixtures. A rotary shaft with a rotary saw blade at one end is adapted for rotating in an electric drill at a second end. The shaft is journaled in a sleeve. A locking collar is slideably mounted on the sleeve. The collar is locked on the sleeve at a particular level so that when the underside of the collar engages the cut end of the exposed pipe, the blade will cut the wall at the desired depth. The collar is kept in contact with the pipe end as the sleeve is moved in a circle against the inside of the pipe so that the inside cut will be at a uniform depth.

Abstract: A hand held trimmer for cutting heavy vegetation such as hedges or the like is disclosed. The trimmer includes a handle having a centrally disposed hand grip thereon. The handle includes mounting means for a conventional cutting means at one end and a convention motor at the other. The trimmer cutting means and trimmer motor are preferably disposed at substantially opposite ends of the handle such that the weight of one substantially counterbalances the weight of the other. A resilient drive shaft means is disposed within the handle and extends between the motor to the reciprocating blade drive means so as to substantially avoid damaging the motor and the drive means should the trimmer reciprocating blades become temporarily jammed during operation.

Abstract: A hand tool convertible for chopping and splitting comprises a head including a blade end with a cutting edge, an eye hole extending in an axial direction through the head for receiving a handle, a pair of opposing major side faces extending from the cutting edge around and past the eye hole, and a recess extending into at least one of the pair of side faces, and a wedge element removably received in the recess. In the preferred embodiments the wedge element is asymmetrically positioned with respect to any other wedge elements that may be attached to the head and is generally non-movably mounted to the head by a stud portion received in a recess in the head.

Abstract: A mechanical force enhancer for the amplification of a force generated by a pneumatic cylinder that is mounted at one end of a pair of spaced apart side plates. A piston rod attached to the pneumatic cylinder is in turn connected to a translatable link that is guided partially by complementary grooves contained in the side plates. After the link has translated through a prescribed distance, the end thereof most remote from the cylinder rod end is stopped against translatory movement thus permitting the link to rotate. A tool containing ram is attached to the link intermediate the stopped end and the rod attachment end. The continued rotation of the link provides an amplification of the force delivered by the cylinder ram thus permitting the tool to do useful work.

Abstract: A metal punch is formed of a cylindrical body member having an outer cylindrical surface and a forward workpiece engaging end; an axial bore extends rearwardly from the forward end with the workpiece engaging portion of the being defined from front to rear by planar surfaces in first and second perpendicular planes, first and second transverse cylindrical surfaces and first and second annular arcuate surfaces. The planes intersect along a line passing through the axis, to define cutting edges. The transverse cylindrical surfaces are symmetrical to each other with respect to the axis as are the annular arcuate surfaces.

Abstract: A key for gripping a beverage can end while simultaneously allowing piercing of the can body. The key has a rigid shaft, one end adapted for use as a handle, and a forked construction at the other end defining two arms. The first arm is adapted to pierce a can body as the second arm engages the can rim. The second arm has at its end a rim-gripping formation shaped to grip the can rim and serve as a fulcrum as the handle is rotated causing the first arm to pierce the can and form an opening therein.

Abstract: A position determination apparatus comprising a coordinate measuring machine having a scale. In addition, a read/write head and a laser interferometer system are provided, both of which can measure the position of a probe. The head writes signals derived from the interferometer onto the scale and is used either to lay down the periodic scale marks, or to write error correction values onto the scale. The scale is thus calibrated in situ on the machine.

Abstract: This invention relates to an electronic level apparatus wherein a hollow torus is rotatably mounted in the level. A body of ferromagnetic fluid creates a horizontal reference and is sensed to provide an audible signal when a predetermined angular orientation is detected by the sensor.

Abstract: A post-avalanche upward indicating aid device is provided. The device includes a body, an illumination source and an attachment means. The body has a generally central cavity which is partially filled with a liquid and closed or sealed. The illumination source enables the liquid in the cavity to be observed in darkness and an attachment point is provided so that the device can be securely fastened to or carried by a user.The aid device incorporates the effect of gravity on a liquid contained in a closed, partially liquid-filled cavity. That is, gravity draws the liquid in the partially liquid-filled cavity in a downward direction so that the partially-empty area or bubble in the cavity will always tend toward a position above the liquid. Thus, by observing the location of the bubble in the central cavity, the device provides an automatic, immediate and readily visible indication of the generally upward direction to a victim buried in snow after being caught in an avalanche.

Abstract: An adjustable foundation locating device used to position or locate forms and trenches needed for pouring concrete foundations. The device uses a horizontal member which is supported by a stake driven into the ground. The horizontal member may be moved up or down the stake until it is located at a desirable height and then secured in place by tightening a bolt threaded into a bracket attached to the horizontal member. Sleeve members may be slid back and forth along the longitudinal length of the horizontal member until they are properly located and then secured in place by tightening bolts threaded into the sleeve members. Strings may then be tied to the sleeve members and pulled taut between two devices located at opposite ends of a trench needed for a concrete foundation. The strings may then be used as guides to position or locate the trench or a concrete form needed for pouring the concrete foundation. A stabilizing member may be used to help secure the horizontal member to the stake.

Abstract: There is provided a chalkline string holder for positioning and anchoring the free end of a chalkline string, thereby allowing a single operator to pay-out, stretch, and snap the chalkline string without assistance from another.

Abstract: A tester for use in testing coordinate measuring devices includes a hub having a generally tubular body portion, an outer ring, and a plurality of spokes connected to the hub and to the outer ring, each of the spokes having a generally tubular body portion and extending radially from the hub. A plurality of holders are connected to respective ones of the plurality of spokes, and elements respectively supported by the holders are provided which are adapted for use in testing the coordinates of a measuring device. The generally tubular body portion of the hub and the generally tubular body portion of each of the spokes is composed of a bonded fiber material in which layers of circumferential windings alternate with layers of helical windings, and wherein the helical windings are wound of a fiber which has a negative coefficient of thermal expansion.

Abstract: A vertical leap measuring apparatus and method is illustrated including a series of vertically spaced electric pressure-sensitive switches and a device for recording an indication reflecting height reached both from a standing position and subsequently from a vertical leap, wherein the difference between the two indications of height reached is calculated to determine the height of the vertical leap.

Abstract: Method and device in a drying group or groups provided with a single wire draw, in a multi-cylinder dryer of a paper machine for securing the threading of the web. The multi-cylinder dryer has drying cylinders heated by steam or equivalent, with the web to be dried being pressed by the drying wire into direct contact with cylinder faces of the drying cylinders. The multi-cylinder dryer also has leading cylinders or rolls on which the web remains outside the drying wire. In the area of single-wire draw, the leading cylinders or rolls are provided with a suction zone situated at a side of the service-side end of the rolls. The suction zone is provided by way of perforations passing through a mantle of the leading cylinders or rolls. The negative pressure present in an interior space in the leading cylinders is spread onto the outer faces thereof through the perforations and by way of grooves situated within the area of the suction zone and passing around the roll mantle.

Abstract: A method of and an apparatus for a drying fibre web (8) between two metal band (1, 4) moving in the same direction substantially in parallel with each other, whereby the fibre web (8) is led together with a felt (7) between the bands (1, 4), and the band (1) on the side of the web (8) is heated and the band (4) on the side of the felt (7) is cooled. In order to achieve a sufficient drying rate particularly when drying thick web grades while keeping the pressure exerted on the web at a low level, condensing pipes (13a to 13b) for back-pressure steam are mounted on the surface of the band (1) to be heated on the side facing away from the web (8), and a heat transfer medium, such as heat transfer oil (11) or the like, is provided between the pipes (13a to 13b) and the band (1).

Abstract: An arrangement of pressure nozzles intended for the treatment of webs comprises a nozzle box. The nozzle box has a carrying face (16) placed facing the web, two nozzle slots (17,18) that blow towards each other being provided in connection with the carrying face, these nozzle slots being placed in the outer part of the space defined by the inner walls (14,15) and the outer walls (20,21) of the nozzle box. The arrangement of nozzles is asymmetric relative to the perpendicular center plane (A--A) of its pressurized carrying face (16). The arrangement of nozzles has a first nozzle slot (18), which is placed relative the carrying face (16) in such a way that the gas jet (v.sub.1) blown out of the nozzle slot follows and remains in contact with the curved carrying face (16) up to the area between the nozzle slots (17,18). The arrangement of nozzles includes a second nozzle slot (17), which is placed within the area of the edge of the curved guide face (14,R.sub.

Abstract: An improved insole for a shoe comprising a plastic injection molded insole conforming to the shape of the foot and particularly the heel wherein a first oval cushion (typically 3 to 4 cm in length and 2 to 3 cm in width) of soft rubber is centrally located in a corresponding oval opening in the heel region and an optional teardrop shaped second cushion is attached to the top of the injection molded insole in the metatarsal region. Such an insole reduces fatigue, particularly in the case of prolonged standing.

Abstract: A device for adjusting the control of flexion of a ski boot upper, in which a slide carries a maneuvering and locking lever constituted by an elastic element in the form of an omega which is articulated on the body of the slide by two coaxial end flanges. On of these flanges constitutes a locking catch and the body of the slide presents a ramp which cooperates with the lateral arm of the lever which bears the flange constituting a locking catch and which is shaped so as to cause, during pivoting movement of the lever, a movement of the lateral arm causing retraction of the locking catch.

Abstract: Ski boot comprising an articulated shank equipped with means of connection to the lower part, which means of connection make it possible to fix or release the shank for rotation, to regulate the inclination of the shank and the elasticity of an elastic element. The connection is supplied by a threaded bar (4) capable of being driven to rotate by a knurled wheel (14). The locking of the shank (5) in rotation is ensured by a lock (6). The elastic element is formed by a cylindrical sleeve (17) whose expansion is more or less inhibited by a sliding rigid sleeve (22).

Abstract: An underwater excavator in which when energized by a supply of hydraulic oil or other means a propeller is set in motion with water being drawn through a water intake into a cylindrical tube and expelled at the water outlet to create a flow of water of sufficient volume and velocity to blow away seabed materials. Thrust and torque are counteracted by the suction force developed at the water intake. Optional filter nets or sieves may be fixed to a foot of the machine to capture samples of the material washed out of the seabed.

Abstract: A tooth point and adapter assembly has an adapter that is mounted to the bucket of an excavation apparatus and a tooth point that is mounted to the adapter. The tooth point has a cavity having a curved bottom wall and the adapter has a pointed end having a curved bottom wall. Within the tooth point cavity is a protrusion that is adapted to fit within a groove in the top surface of the adapter. Accordingly, the adapter supports the tooth point along its top edge by engagement between the protrusion and groove and the tooth point is supported with full contact between the adapter and tooth point along the curved bottom walls of the adapter and tooth point respectively. The tooth point further includes an indentation in the outer portion of the cavity side wall that matches the profile of the adapter pointed end. Thus, the extent of wear to the tooth point in relation to the adapter can be determined by visual inspection to prevent the tooth point from wearing through and damaging the adapter.

Abstract: A stepped frame having at least a pair of substantially planar surfaces oriented one lower than the other has a device for clamping a removable panel to the lower surface. One end of a rigid, unitary member attaches to the upper surface of the frame, while the other end extends over the panel, which in turn rests against the lower surface of the frame. A threaded aperture in the extending end, and a correspondingly threaded clamping screw cooperate to exert pressure on the panel when the screw is positively threaded through the aperture, thereby clamping the panel to the frame.

Abstract: Method of forming various versions of an apparatus for displaying diverse types of artistic creations in which the shapes and the colors of the art piece change continuously. The changes have both a temporal and a spatial nature, and may occur according to a set programmed schedule or at random. The art objects so formed may have a flat surface, curved surfaces and/or combinations of flat and curved surfaces. The color range extends over the whole spectrum of white light components. The art object does not emit light but reflects incident light. Under set conditions, the incident white light is either not reflected at all or a spatial combination of quasi monochromatic light rays is reflected. In some specially constructed configurations, the wave length of the reflected light is not affected by the observer's viewing angle. In other specially constructed configurations, the viewing position of the observer affects the wave length of the reflected light rays and the color which such observer perceives.

Abstract: A shoulder-fired semi-automatic rifle including an elongated housing, a barrel projecting forward from the housing, a bolt mechanism within the housing including a firing pin having a sear mechanism and a magazine depending from the housing and cooperating with the bolt mechanism. A shoulder seat depends from the housing immediately behind the magazine and is spaced substantially forward of the rear end of the housing. The trigger and trigger hand grip are mounted forward of the magazine. The trigger, spaced substantially in front of the sear mechanism, is connected to the sear mechanism through an elongated link member. A front hand grip also depends from the front portion of the housing in front of the trigger. The housing may also be provided with an upward projecting carrying handle located above the center of gravity of the rifle, when extending longitudinally horizontal.

Abstract: Fish lifting devices using the principle of the Archimedes' screw are known. Such devices have used a latticework screw entry portion to dewater the screw at the point of entry of the fish. The present invention provides a venting system which causes a fish-attracting current at the entry to the device and further substitutes more economical dewatering slots in the outer shell for the lattice-work screws.

Abstract: This invention relates to a scoop net for catching fish, which includes a net coupled with a water-tight plastic fabric and connected to the scoop net frame. The plastic fabric is having one circular end adhered to the middle part of the net to define a scoop-like water chamber, and having the other elongated end fixedly connected to the curved side portion of the scoop net frame to define a water channel.

Abstract: An assembly for supporting a plurality of fishing rods and automatically, independently pivoting each of said rods through an adjustable arc of travel, whereby a suspended fishing lure/bait rises and falls to attract fish. A support base includes a plurality of radially-projecting, pivotally-mounted rod supports which are coupled via length-adjustable linkages to one or more rotationally driven, eccentric means. An associated storage battery, controller and gear reduction assembly intermittently, variably applies power to induce a desired jigging action. A remote rod holder, power supply and linkage are also disclosed.

Abstract: There is disclosed a fishing rod holder the primary members of which can be rotated through circular planes that are perpendicular to each other enabling the fishing rod holder to accommodate any variety of fishing circumstances.

Abstract: A weedless fish hook assembly (10), and a method of making the weedless fish hook assembly, involve an elongated shield (14) constructed of a flexible, semi-rigid and resilient tube (30) with a shank (20) of a fish hook passing through and being attached to an upper tubularly portion (34) of the shield near an upper end of the shank. A lower portion of the elongated shield comprises an elongated segment inside-out segment (38) of the tube which bows from the upper tubularly portion toward the hook of the hook member. A metallic hook member of said fish hook assembly passes through an opening in the lower portion of said shield at a penetration area such that the inside-out segment bows outwardly and downwardly toward the hook. The inside-out segment forms a groove in which the hook's spear end is positioned to thereby protect the hook spear end from snagging debris but which yields to the mouths of biting fish.

Abstract: The present invention provides a very carefully designed trolling rig and a method of combining the trolling rig with bait that is especially intended for use with a certain bait fish that is commonly known as a ballyhoo. The ballyhoos that are usually sold for bait are quite uniform in size and, therefore, can be used with the present invention. Thr present invention provides a conical cap that is made, preferably by molding, to resemble the head of a ballyhoo and which has a hollow cavity of a size and shape that will be compatible with the size and shape of the head of a bait ballyhoo. This conical cap, which is preferably molded or cast from a dense material, is closed at the front with a leader being attached unobtrusively to the leading edge of the cap. Another leader is unobtrusively attached to the rear lower edge of the conical cap, and a hook is connected to the other end of this rear leader. An angled and vertically positioned locking pin is used for holding the fish in the conical cap.

Abstract: A fumigant applicator for releasing therefrom a volatile substance, e.g., phosphine from a metal phosphide, at a controlled rate, thereby avoiding excessive local phosphine build-up and with complete protection of the contents against liquid water, in the shape of a sachet at least one face of which is formed from a spun-bonded, polyolefin sheet or fleece of heat and pressure bonded polyolefin fibers, which is vapor- and gas-pervious but impervious to liquid water and use, naturally water-resistant and of high tensile and tear strength, which sheet or fleece is rendered heat-weldable and is heat-sealed at its edges by a high porous coating, preferably a powder sprinkle coating, of a thermoplastic heat welding bonding layer which melts lower than the polyolefin fibers so that a heat welding seam at the edges of the sheet can form before the fibers melt so that the physical properties of the polyolefin fibers and the gas permeability thereof are substantially unaffected.

Abstract: A method for controlling the color of mulch for retarding the fading of the color of the mulch and/or restoring the color of mulch that has faded due to prolonged exposure to actinic light and ambient weather conditions by applying a brown color-control solution to the surface of the mulch. The resulting mulch product has a long-lasting fresh, new appearance.

Abstract: A tree surround which is provided to confine shredded or bark material at the base of a tree for the purpose of retaining moisture and likewise prevent the growth of weeds thereby maintaining neat appearance of the tree area, the surround being made from tire carcasses, specifically the sidewalls thereof which would normally be a problem to dispose of and costly to otherwise destroy, the shape of the sidewall and the contact of the severed outer periphery with the ground making possible use of power equipment to trim weeds which may grow near such periphery.

Abstract: Plants are hydroponically grown in a cellular water table provided with divergent grow lines along which plants are moved in plant holders. The grow lines are arranged to provide spacing between adjacent rows of plants as plants mature. Within each grow line is a variable pitch screw arrangement which provides for increased spacing between adjacent plants in a grow line as the plants mature. Four-way spacing is provided for both the leaves of the plants and their roots as the plants are suspended over the cellular water table. Maintenance of the system is faciliated by a crawl space beneath the water table which allows access to removable bottom panels of the individual cells within the water table. Plants are cultivated and serviced from the top by a man carrier system. CO.sub.2 enriched air and/or pesticides are supplied directly to the undersides of the plants by a conduit system provided within each grow line.

Abstract: A self-locking wick insertion device for a pot to permit bottom watering of a potted plant by capillary action, the device including a base, a generally centrally positioned upwardly extending stem, and circumferentially spaced, radially extending ribs formed on the stem. A groove is formed in the top of the stem for snugly receiving the wick, with a slot being formed in the base through which the wick can extend into the water supply. The ribs are inserted into an opening in the bottom of the pot, with the radial dimension of the ribs being such that the ribs are slightly radially compressed during such insertion to provide firm frictional engagement of the ribs with the wall defining the opening. The wick is maintained within the growing media for the plant, and water from the water supply can be transmitted by capillary action through the wick to the growing media.

Abstract: Closure apparatus and the method of operating the same is presented for an autoclave or other equipment which requires an air tight seal to be maintained. The closure apparatus includes a door which is hingedly joined to a chamber housing. Hinge members attached to the door include a cam connected to a cam shaft which is driven by an electric motor. The can includes a latch member to cause the door to pivot and laterally slide in to engagement with a channel seal surrounding the opening. A movable gasket is in the channel is fluidly urged against the inside of the door to provide an air tight seal thereto when the door is fully closed.

Abstract: A gasket system has a gasket adapted to be secured about an opening. The gasket includes a mechanism for retaining and sealing a window or the like. The gasket is positioned about the opening such that when the window is positioned within the opening, the window substantially conceals the gasket and is flush at its perimeter with the opening.

Abstract: A method and apparatus has been disclosed for grinding contour punch parts. The apparatus is capable of movement on six axes. The main features of the invention include stopping rotation of the part when a flat surface is desired to be ground on the part and moving it directly vertically upwardly with respect to the grinding wheel, thus forming a smooth flat surface on the part. The part is moved on three axes, laterally, horizontally and vertically with respect to the grinding wheel. In addition, a dressing apparatus, movable on two axes, is disposed behind the grinding wheel and maintains a desired surface upon the grinding wheel. The dressing surface may form a ramp surface on the grinding wheel that will create a ramp surface on the finished part.

Abstract: A dust control system is shown for an abrasive grinder. The grinder backing plate is provided with a socket which provides rotating engagement with the mating hub provided on the abrasive disk. As the disk is rotated between a release position and an engagement position, air passage holes provided in abrasive disk are aligned with mating holes provided in the disk backing plate. The device also includes a shroud connected to a vacuum source, the shroud being spaced from the grinder backing plate by a predetermined gap to allow the intake of dust from the work surface.