Abstract: A clamp structure which includes a clamping band with open ends adapted to be interconnected and with an ear for tightening the clamping band about an object to be fastened by plastic deformation of the ear; the free ends of the clamping band are provided with arched surface portions, as viewed in transverse cross section, to provide outwardly extending, groove-like reinforcing embossments, and at least one end of the band is of tapered configuration, as viewed in the circumferential direction thereof, with the tapering side surfaces converging toward each other in the direction toward the respective band end so that the arched surface portion of the one band end is able to engage in the overlying arched surface portion near the other band end to assure thereby a continuously smooth, stepless internal configuration of the band during tightening thereof by contraction of the ear as the diametric dimension is reduced.

Abstract: A holder or clip for supporting a valance in front or around a venetian blind head, with a flat sheet metal body having prongs for holding the valance and having tabs or an especially shaped body portion for connection to the blind head.

Abstract: A rope tightener for a rope under tension such as a tent rope formed from a single piece of plastic forming two pairs of parallel legs, the respective legs of each pair having opposed hooks formed at the end of the leg to cooperate in forming a hole through the pair of legs for a rope, the respective leg ends each being bevelled toward the face where the legs of a pair come nearly together to facilitate the introduction of a rope between the legs.

Abstract: An improved sculpturing apparatus having an asymmetric blade, improved fabric support means and an improved screen for applying stiffening agent is disclosed.

Abstract: A method of manufacturing a color display tube of the refocusing type in which supports of insulation material are secured against an apertured metal plate. The supports are provided with a conductor at least on the side remote from the plate, so that the plate constitutes a first set of lens electrodes and the conductors constitute a second set of lens electrodes. The two sets of lens electrodes form a quadrupole lens in each aperture in the metal plate when a voltage difference is applied between the first set and the second set. The defocusing direction of the quadrupole lens is parallel to the phosphor strips of the display screen.

Abstract: An improved heat exchange tubing and blade assembly and a method for fabricating the same are described. The heat exchange assembly comprises an elongated tube and an elongated heat exchange blade strip positioned thereon, said strip including an array of integrally formed blade segments which extend from a U-shaped support segment. Surfaces of the blades extend at a favorable angle of attack to the incident fluid flow stream, and in a preferred embodiment the chords of the blades extend substantially normal to the length of the tube. The strip is supported on an outer surface of the tube, and means integrally formed with the tube maintain the support segment in thermal contact with the tube.

Abstract: A tool comprising a receptacle having a cylindrical portion defining a space therewithin adapted to receive a resilient seal after deformation of the latter by an external member is disclosed. A movable member carried by said receptacle comprises a tubular portion slidably received on the cylindrical portion and movable from a first position in which said tubular portion is opposite the space towards a second position in which said tubular portion is offset relative to the space against the action of a first spring. The tubular member is provided with an aperture adapted to receive the external member, and an element is slidably carried in said space and resiliently urged away from the latter by a pair of second springs, thereby expulsing the seal in a corresponding groove when the tubular member is moved towards its second position.

Abstract: A patching system and method for repairing a screen having a defect in it employs two patches interconnectable through the screen in overlying relationship with the defect.

Abstract: An apparatus and method for assembling articles such as clips, comprising first and second components formed from metallic sheet stock, said apparatus including an outer annular member and second and third dial members mounted within the annular member, the annular and dial members being rotatably mounted in a synchronized manner associated with the cycling of a die press. A pair of article components are punched from a sheet of metallic stock during each press cycle and are pushed through an opening in a die block to be received and held at a receiving station in a horizontal orientation in respective ones of a plurality of clamping assemblies formed in each of the outer annular member and second inner dial member, respectively. A pair of article components are punched on a continuous basis with each press cycle with the successively formed pairs of components being received in successive pairs of clamping assemblies which rotatably index under the die block opening.

Abstract: A method for the production of metal-semiconductor field effect transistors (MESFET) is described. Practice of the method allows one to produce self-aligning MESFETs with Si sources and drains in close proximity having metal gates therebetween.

Abstract: This invention provides the structure for a two-phase charge coupled storage device. Alternate regions of thicker and thinner silicon dioxide are grown upon a silicon substrate. These silicon dioxide regions are covered with a layer of deposited, undoped polysilicon. A layer of silicon dioxide is grown over the polysilicon. Ion implantation is applied to cause isolated regions of conductivity in the polysilicon. Then contact windows are cut in the upper most layer of silicon dioxide exposing the polysilicon therethrough and a metal coating is deposited in the contact windows. Two-phase signals are applied to the resulting electrodes to advance charges at the surface of the silicon substrate.

Abstract: Method and apparatus for serially dispensing dual-in-line-type integrated circuit devices for use in manually loading circuit boards. Integrated circuit devices are placed in queues in a plurality of dispensers. The dispensers are adapted to serially release individual circuit devices to an access position within the dispensers. The dispensers are mounted on laterally moveable frames in a rack and can be withdrawn from the rack over a circuit board at an array position substantially directly over and adjacent the position on the circuit board into which the circuit devices are to be loaded. The dispensers comprise an indexing head which is adapted to release only single ones of circuit devices for rapid and convenient manual transfer from the access position of the dispensers to the load position of the board. A plurality of stations can be disposed in an assembly line with a board advancement mechanism to implement speed controlled loading of circuit boards.

Abstract: A method of manufacturing a contact bridge for an electric switching apparatus which contact bridge includes an electrically highly conductive overlay and a concave-shaped support layer. The method comprises the steps of pressing a powder blank comprising two layers of metallic material, one of which comprises iron for the support layer and the other of which comprises copper for the overlay; sintering the blank in a protective gas; sizing the blank; further sintering the blank in a protective gas; further pressing the blank by reverse-flow cup extrusion; and applying an electrical contact to the overlay. Alternatively, the powder blank may comprise a layer of copper-zirconium and silver-metal oxide, the latter for an electrical contact layer. In this embodiment, the contact bridge is formed with the electrical contact in one step and there is no need to apply a contact to the bridge after the pressing by reverse-flow cup extrusion.

Abstract: There is provided a shaving apparatus having a shear plate formed with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate. The cutting unit comprises a cutting member having cutters and a hair-pulling member having lead cutters respectively associated with and movable relative to the cutters. A separate coupling piece is provided for securing the cutting member and the hair-pulling member together by passage through corresponding central openings in each such member. One or more connection tabs extend radially inwardly from the periphery of the central opening in the hair-pulling member for contact with the coupling piece.

Abstract: A cutter for cutting out profiles from sheet material, the cutter having a cutter blade mounted on a pivoted arm whose movement round a fulcrum causes variation in the effective length of the arm by means of a cam and cam follower combination.

Abstract: Pattern pieces of a conventional foundation pattern draft are divided into segments along predetermined division lines. Various segments of different overall sizes are joined together and form a new pattern piece. The segments selected for combination into the new pattern piece more precisely fit and accommodate major fitting and structural areas of the body. Adjustment lines are marked on various segments forming the pattern piece. Dividing the pattern piece along the adjustment lines and overlapping the resulting edges of separating the resulting edges or horizontally shifting one resulting piece from another achieves vertical and horizontal adjustment in the pattern piece. A transfer technique involving angular pivotation of one defined portion or sector of the new pattern piece with respect to the remaining portion of the pattern piece in conjunction with other adjustments achieves further adjustment and precise fitting of the pattern piece.

Abstract: A drafting instrument wherein a plate having a circular through opening concentrically arrayed thereabout with calibrated scales and into which a dish having handles is insertable and rotable therein, the drafting instrument being positioned on one face of a sheet to be worked, the dish having a track upstanding from its floor and extending generally along an axis of the dish, a carriage moveable along the track, a plunger being selectively depressible and carried by the carriage, a graphite rod, held by and depending from the plunger extending through an opening of the track, for working engagement with the worksheet.

Abstract: An area measurement device for determining the single vane throat area of a nozzle guide vane with inner and outer bands adapted for assembly in a ring of vanes having a close tolerance cold throat flow area through the entire ring annulus and wherein each of the guide vanes includes aft radial reference surfaces and a radially outwardly directed side reference surface locatable on internal engine support surfaces for positioning the vane within an engine annulus support assembly. Each vane also has an inner band locater hole for fixedly securing the inner band of the nozzle to an internally located engine support.

Abstract: A tool for determining misalignment of a coupling bore located in one end a rotatable machine shaft. The tool includes a plurality of radially expandable split rings disposed side-by-side along the outer surface of a hollow, tubular collet body, an elongated mandrel assembly coaxially carried by the collet body, and a dial displacement indicator releasably carried on the mandrel assembly. The mandrel assembly includes a taper or mandrel portion partially disposed within the collet body, a stem portion projecting outwardly from the collet body, a threaded portion disposed adjacent the mandrel portion, and an adjusting nut having a threaded portion engaged with the mandrel assembly threaded portion. The collet body is placed in the shaft coupling bore and the adjusting nut turned so that the mandrel portion is drawn through the collet body, the latter thereby expanding and forcing the rings into "locking" engagement with the wall of the shaft coupling bore.

Abstract: The present method and apparatus are believed to be the first to achieve, at least in a practical manner susceptible of widespread use on large numbers of joints, both proper engagement and proper makeup torque between tapered threaded members such as sections of pipe in an oil well or pipeline. In accordance with one embodiment, presently preferred, gage means are employed to determine the actual hand tight plane of each tapered threaded member, and a mark is made on each such member in predetermined relationship to the hand tight plane. Such marks are then employed for field inspection of joints which have been made up to a predetermined, measured, desired makeup torque. In accordance with another embodiment, the members (for example, casing and tubing sections and collars) are made up until the marks on the collar and the pipe are at a predetermined axial distance from each other at a predetermined makeup torque or predetermined desired range of makeup torques.

Abstract: An alignment sight for hand drills utilizes a pair of sights, preferably a fixed tool, a unitary sheet, for mounting onto the exterior surface of an electrical hand tool of the hand drill variety. The sights are arranged so that the sight line extends perfectly parallel to the longitudinal axis located in the center of the chuck of the hand drill. In use, a user marks a spot on the work piece a fixed distance from the center of the hole to be drilled. Positioning the tip of the drill bit at the location of the hole, and locating the drill bit so that it extends substantially normal to the plane of the work piece, permits the user to maintain the sights aligned with the mark thereby forever maintaining the longitudinal axis of the drill bit perfectly normal to the surface of the work piece, providing thereby, a hole extending at right angles to the surface of the work piece.

Abstract: A method for drying granulated dielectric materials including superhigh frequency heating of granules which are moved in heating space by a strong hot air flow. The granules are moved at a variable speed, a negative temperature gradient is produced, and humid air is removed from the heating space. According to the invention, the apparatus for drying granulated dielectric materials includes a superhigh frequency generator and a drying chamber which, in turn, has an input waveguide and an output waveguide interconnected by a waveguide elbow. An air inlet and a granules inlet are connected to an input of the input waveguide. The output waveguide has an air separator arranged at its input and a resonator bin arranged at its output.

Abstract: Method of drying photo developing ink printed on sheet material, said method comprising the steps of conveying the sheet material through a developing zone below a line source of ultra-violet light, the line of said source lying at an angle to the direction of conveying movement with a reflector behind the line source so that both direct and reflected ultra-violet rays are directed towards the sheet material, with a transparent heat sink filter for infra-red rays disposed between the sheet material and the ultra-violet light source to filter between 5 and 50% of all of the direct rays from the source.

Abstract: The present invention is a system for controlling the blow through steam in cylindrical dryers such as those used in the paper industry. The flow rate of the condensate is measured as is the flow rate of the steam blown through the drying cylinder. The ratio of the flow rate of the blow through steam to the flow rate of the condensate is thereby measured. Knowing the conditions of the paper going through the dryer, the desired conditions of the paper leaving the dryer and the feed steam pressure, the ideal amount of condensate can be determined and a given ratio set. The difference between the actual measured ratio and the set ratio is noted by a ratio control means and a compensation made by varying the pressure in the steam/water separator which is downstream from the drying cylinder. The amount of blow through steam for a given condensing load is thereby controlled and can be minimized.

Abstract: A device for aiding in the selection of a balanced diet. The device comprises a container in which is disposed an upright artificial stem. On the outer walls of the container are displayed food group indicia for achieving a balanced diet. Mounted on the stem and extending radially outward therefrom are artificial branches. At the distal end of each branch is a vertically disposed plate having grooves along the perimeter thereof. The grooves are angularly spaced along the perimeter of the plate. Adjustably mounted on each plate is an artificial petal. The petals are adjustably movable along the vertical plates, respectively, in a pivotal movement in a vertical direction. Initially, the petals are disposed in the elevated position. Each petal designates a nutritional group of food represented by the indicia on the outer walls of the container. As food from a nutritional group is consumed, the associated petal is moved downwardly a distance commensurate with the quantity of nutritional value consumed.

Abstract: Disclosed herein is a device conformed as a cylindrical structure having a bore axially bending partly therethrough, the end surface around the bore being coated with a phosphorescent coating and the bore surfaces being coated with black paint. By virtue of these coatings and the relative reflection coefficient thereof, a substantially true visual impression is created duplicating the appearance of a black hole in space. Thus the device may be used as a teaching aid assisting the user in the visualization of a complex physical phenomenon.

Abstract: A mobile educational toy which simulates a train has a plurality of toy units which are coupled together to form a train. The toy units each include a mobile carriage structure and a graphic block. The graphic blocks are shaped in the form of an alphabet letter, number, or other symbol. By arranging the toy units in a specified order, words or other relationships can be formed by the user. In addition, by virtue of the coupling together of the toy units, a toy simulating a train is formed.

Abstract: A shoe insole that will allow plantar flexion of the wearer's foot in an upward direction but will inhibit such flexion in a downward direction past a normal horizontal condition. The insole includes a rigid first member that extends from a toe end to a rear edge situated midway between the heel and toe of the wearer's foot. A flexible second member overlies the first rigid member and is hinged thereto at a transverse edge located between the toe and rear edge of the first plate. The second plate will flex upwardly in response to plantar flexion of the wearer's foot but will engage the first rigid member and resist further downward movement as the foot flexes downwardly beyond a normal horizontal extended condition. The members are positioned within the shoe by a sole-shaped pad.

Abstract: This invention is a reinforced ventilated shoe. It is formed with a strip of shoe cover material circumscribing the toe, sole, arch and heel. Reinforcing strips are provided to form an ankle band and parallel instep strips which extend from the toe portion to the ends of the ankle band. A vertically disposed strip connect the heel portion of the circumscribing strip and the back of the ankle band. Side strips connect the ankle band at one end and the other ends of the side strips are bifurcated below the ankle bone and connect the arch portion of the sole at spaced points. Other strips are provided connecting the parallel instep strips and the sole portion of the circumscribing strip; and strips horizontally disposed connecting the parallel instep strips and the vertically disposed strip at the heel. The shoe is provided with air penetratable netting in the spaces between the strips.

Abstract: A ski boot comprising a base shell having a bottom sole and a calf shell; hinge means joining the calf shell at its lower end to the base shell adjacent to an ankle section of the base shell thus providing a hinged point therebetween. A traction device is provided for securing the base shell with the calf shell in clamped engagement with a leg calf of a wearer and is joined at an upper end to said calf shell above the hinge point. The traction device has opposite ends which are connected to opposite sides of the base shell at shell areas opposing an instep of the foot. The traction device further includes guides means on opposite sides of the ankle section beneath the hinge means which guide means are cooperable with said traction device for applying clamping force through the calf shell to a leg calf of a wearer.

Abstract: A shoe sole, especially for summer footwear such as sandals, comprises an outsole and an insole of substantially identical outline molded from plastic material. The outsole is provided along its periphery with a set of solid upstanding studs, molded integral therewith, which have reduced tips received in bores of the insole and form shoulders abutting the latter whereby the two sole members are spacedly interconnected. The insole has an array of venting apertures between which it is provided with depending pins over the major part of its area that act as supplemental spacers by coming to rest on the outsole. Other peripheral formations on the outsole, in the shape of flat tubes, enter complementary slots of the insole to form channels for the passage of straps.

Abstract: An improved method and combination facilitating interchanging attachments on an adaptable off-road vehicle characterized by, in addition to the usual vehicle and its controls, prime mover, power source, drive apparatus, steering apparatus and the like, a first portion of attachment apparatus carried by the vehicle including a plurality of mounting stations on respective front pair of elongate substantially horizontal tracks and front and rear pairs of vertical tracks; the tracks being spaced apart a first predetermined distance; each mounting station having a plurality of apertures that are laterally aligned for even mounting of the attachments; a plurality of attachments, each having respective second portion of attachment apparatus, each second portion including a pair of track engaging clevises laterally spaced apart the first predetermined distance and having a plurality of apertures adapted to align with the apertures at the mounting stations; a plurality of pins for inserting through the aligned apertur

Abstract: An advertising display device for use in supermarkets is adapted to catch the customer's eye by protruding slightly into the aisle and is affixed to the shelves used for storing goods thereon. The display device is fabricated from unitary sheet material, includes advertising indicia disposed thereon, and is inexpensive to manufacture.

Abstract: A combined sound reproducing device for either music or speech, together with a display for an opaque sheet on which an insignia is defined that may be a work of art, photograph, printed material or the like, and the display being a part of a resonator box that not only amplifies the volume of the sound reproducing device, but the resonator box having a number of spaced recesses defined in the upper portion thereof in which merchandise such as cosmetics or the like may be mounted in an attractive manner to encourage the sale thereof. The sound reproducing device may be either a spring actuated music box or a power driven unit in which a cassette may be removably disposed to have a voice message or music reproduced therefrom.

Abstract: A medallion is composed of a front mirror surface portion, back surface portion and bottom surface portion, and a wreath type decoration portion such as olive leaves is formed in projected mode at the peripheral edge of the medallion, and a wall thickness of the mirror surface portion wherein a pattern such as face image or bust image of human being is formed by embossing or carving in the space surrounded by the decoration portion and the back surface portion formed almost perpendicularly to the mirror surface portion is so formed that the thickness is gradually heavier from the top part toward the bottom part, and a seat portion having a horizontal surface whose width is about 30-40% of the maximum width of the front surface portion of the medallion is formed at the bottom surface portion, and the mirror surface portion is formed in slightly inclined surface toward the rear part.

Abstract: A device for holding flip cards is disclosed. The device includes a cover which is hingedly mounted to the compartment in which the cards are contained. Rings secured to the cover extend through holes in the cards, and permit the cards to be turned in the manner of the pages of a book. A cover flap extension laterally displaces the cards when the cover is opened.

Abstract: Conversion plug having the general shape of a shotgun shell, having a large counterbore formed in the end adjacent the hammer and having a small threaded counterbore to receive a nipple adapted to receive a percussion firing element.

Abstract: An improved handle and reel seat for a fishing rod comprising a single grippable handle member including a forward and a butt end thereon, the body member being elongated and having a continuous, generally circular outer surface in axial cross section. An opening in this outer surface connects with a first hidden inner cavity in the body member adapted to seat the reel feet on a T-shaped fishing reel support. A second cavity and matching slide member extend from the butt end of the body member and connect with this first cavity, with a butt cap and washer adapted to compress the slide member within this second cavity to securely support and seat the reel feet within the first cavity and opening.

Abstract: A tubular case for a fishing rod which is formed from braided or pseudo-braided plastic filaments of an open, expandable weave, one end of the case being closed and provided with a loop member for facilitating the hanging thereof. The opposite end of the tubular case preferably has a flared opening to facilitate the insertion therein of the small, upper end of a fishing rod and its line guide. As the rod is forced into the sleeve, the sleeve expands so as to conform generally to the shape of the rod and its protuberances, i.e., line guides, bobbers, sinkers, and the like.

Abstract: A cast fishing implement comprising a line a leader or snell, a hook device, a sinker attached to the line, and a bob consisting of a float body, with a weight at the forward end thereof, e.g. a lead ring. The bob is provided with a central cavity which is outwardly open at one end thereof and which at the opposite end terminates in an elongated channel inside a straight, rod-shaped extension rearward of the float body. The cavity is dimensioned such that it can contain the hook with the bait, spinner or the like, and said channel being dimensioned such that it can contain the sinker. The bob is adapted to lie flat on the surface of the water when the sinker is drawn all the way in to the end of the channel in the extension and the hook with the bait, spinner or the like lie within the cavity. The bob is balanced such that its center of gravity lies near the forward end of the bob, permitting it to stand upright when the hook, spinner or the like and the sinker have left the bob.

Abstract: A toy including a powered running toy member and a track along which the toy member runs, the toy member being made to run by rotation of the driving wheels of the toy member. The running toy member is provided with a switching arm which is attached to the lower side thereof and is adapted to trigger an operation for changing the running direction, and a mechanism for effecting the change of running direction when actuated by the swinging arm. On at least one end of the track, a mechanism is provided for causing swinging movement of the switching arm to automatically change the running direction of the toy member as the toy member reaches that end of the track. The running toy member has the form of an animal such as, for example, a bird, and incorporates various mechanisms for effecting various actions simulating those of the actual animal, e.g., turning of the head, opening of a beak, etc., by making use of power provided by the driving wheels.

Abstract: A garden cloche is erected by folding an elongate sheet of transparent plastics material along crease lines preformed in the sheet. These crease lines include a central longitudinal line and at least two outer longitudinal lines permitting the sheet to be folded to form an inverted V shape with watering troughs along the bottom of the roof-shaped sides of the cloche. Moreover, lateral crease lines extending between the central longitudinal crease lines on a zig-zagging outer longitudinal line on each side of the central line alternate in length so that upon folding the sheet, the panels defined between adjacent pairs of crease lines are alternately inclined to one another producing corrugations which strengthen the sides of the cloche.

Abstract: Disclosed herein is a method and apparatus for forming borders and the like around garden areas, the apparatus comprising cardboard sheets having scribed thereon three bending folds, each bending fold extending longitudinally along the surface of the cardboard sheet. More specifically a center fold bisects longitudinally elongate rectangular cardboard pieces, the center fold having formed laterally adjacent thereto two side folds. In use the cardboard piece is bent to form a V-section with the side folds being bent over to form vertical surfaces on either edge of the "V". These surfaces are then joined by various fastening devices and the cardboard structure is inserted into the ground and filled with cement or precast concrete blocks.

Abstract: A tree tie engageable about the trunk of a tree and fixed to a supporting post set adjacent the tree. The tree tie is such that it will yield about and freely permit the trunk of its related tree to grow or increase in size and is such that it will yield, buffer and absorb shock-like forces imparted into it upon rapid movement of the tree relative to the post. The tree tie comprises a collar established of a length of rubber or plastic hose engaged about its related tree trunk, a pair of elongate cable or wire lines extending from within the opposite ends of the collar to the support post with which they are secured by anchoring means and helical spring means within and carried by the collar and connected with the ends of the lines within the collar. The spring means operate to normally yieldingly impart tension on the lines whereby the tree is yieldingly prevented from bending and/or tipping in a direction away from the post to an excessive extent.

Abstract: A combination of a rigid trough formed of a bottom and raised sides and a conduit which carries the water-nutrient solution to plants contained therein, the conduit being contained within the trough and being placed in the trough sufficiently spaced between the sides thereof to permit access to the underside of the conduit. A Dike Stick is so sized to fit under the conduit in one situation to provide a partial damming effect and to fit on top of the conduit by bridging the sides of the trough.

Abstract: A combination casing and frame for use both as the window casing and as a storm window frame for a double-hung structural window and adapted to be mounted directly against the frame of the structural window includes unitary top, side, and sill members, each of the top and side members having a casing portion adapted to overlie a portion of the structural window frame, structure for slidably mounting sashes on the side members, latch-engaging structure provided in the side members, and latches movably mounted on opposite sides of the sill member in retractable engagement with the latch-engaging structure, for mounting the sill member on the side members and demounting the sill member.

Abstract: A structural panel, such as a window or door sash which is mounted for horizontal sliding movement between a pair of tracks forming its frame and which is pivotable about a vertical axis extending through a pair of apertures in the tracks. The sash is supported for movement along the tracks by respective carriers located adjacent each corner of the sash. The sash includes releasable locking means located within one stile and a pair of pivot assemblies located in the other stile. Each pivot assembly includes a rod which is extendable vertically through an aligned carrier and into the aperture in the associated track. The carrier into which the rods extend includes a rotatable mount to enable the sash to be pivoted out of the frame when the releasable locking means is released.

Abstract: A connector device for attaching the tape in an automotive window regulator to the window comprising a drive block which engages the tape and snap locks to a guide block which also retains the drive block in engagement with the tape, and a sash plate which is fixable to the window and twist locks to the guide block.

Abstract: A method and device for machining the tappet collars of the inner rings of roller bearings by means of a frusto-conical cup wheel is proposed wherein such cup wheel is adjustable in the axial direction of the workpiece into engagement with the surface to be machined, is angularly adjustable about a remote axis perpendicular to the axis of the workpiece to provide for an adjustment in the inclination of the annular abrading surface of the cup wheel relative to the surface to be machined, and is supported for linear oscillating movement in a direction substantially parallel to the latter surface.

Abstract: A holder for an abrasive plate wherein a rigid plate is provided with a dress of abrasive grit on its contact face; a head on a shaft is provided with a peripheral flange defining a seat for a pad of magnetic material which is magnetically attracted to the seat defined by the flange and magnetically attracts the abrasive plate.