Abstract: A method of making a thermal barrier component includes the steps of fabricating a first heat-conductive part having spaced transverse first and second projections, fabricating a second heat-conductive part having a transverse flange, moving the heat conductive parts toward each other so that the flange moves into the region between the projections, so that retaining portions on the flange end projections move into engagement and yieldably resist movement of the heat-conductive parts away from each other, and so that outer ends of the projections firmly engage respective surface portions on the second heat-conductive part, thereafter applying to the heat-conductive parts a thermal barrier material which extends between and is fixedly coupled to the heat-conductive parts, and thereafter machining away a central portion of each of the projections.

Abstract: The method of making a roller shelf for the display and dispensing of wares which includes molding a plurality of groups of molded parallel axles and rollers as a unit and with a common mold runner, the groups each having the same number of axles, providing a pair of side rails having opposed complementary bearing recesses, the number of the bearing recesses being an integral multiple of the number of axles in the groups, simultaneously inserting the axles of a group into the bearing recesses, fixing the axles in the recesses, and breaking off the runner. The roller shelf can have spaced rollers or interleaved and overlapping rollers.

Abstract: A fastener carrier for the support of screw members which comprises a carrier strip having a substantial length and having at least one row of apertures defined therein in a direction lengthwise of the carrier strip, and screw members each having a head and a stem and removably mounted on the carrier strip with the stem received in the corresponding aperture in the carrier strip.

Abstract: A double wrap brake band for controlling the clutch drum of an automatic transmission for a vehicle. The band is formed from an integrally stamped strap the ends of which are joined to form the circular band. The strap includes longitudinal slots forming three parallel straps which control the constriction and expansion of the band. A first bracket secured to the outer straps and a second bracket secured to the intermediate strap facilitate control of the constriction/expansion movement. The brackets are secured to the straps such that breakage and malfunction are reduced.

Abstract: A method of making an electrically-operated fluid valve for improving the metal-to-metal sealing of the valve needle to the valve seat, particularly of the rounded tip end of the needle to a frusto-conical depression in the seat. The method comprises applying a controlled axial compressive load to the seated needle to cause the annular zone of sealing contact between the needle and the seat to be coined.

Abstract: Integrated circuits are formed by bonding two substrates together on a moat or recess. If the moat is exposed at a side wall, an optical fiber is inserted therein and communicates optically with a photoelectric device in the substrate by a slant side wall of the moat. If the moat is sealed by a cover layer resulting from removing all or most of the top substrate leaving the bonding layer as a cover, a pressure responsive device is formed on the cover layer directly or in the remaining top substrate over the sealed cavity.

Abstract: A self-regulating heater includes an electrically-conductive substrate (11), having a magnetic surface layer (13) of one skin depth, folded 180 degrees to define two heater sections joined by a fold section. The magnetic material has a considerably higher resistance than the substrate material. The surface of the two sections clad with the surface layer are in closely spaced parallel relation and connected in series by the fold section (23) such that a constant amplitude alternating energizing current flows in opposite directions through the two sections at any instant of time to thereby establish an electric field between the two heaters. The field concentrates current flow at the two facing surfaces. Depth of the current is determined by the skin effect phenomenon and increases significantly at temperatures above the Curie temperature of the magnetic material.

Abstract: In order to simply and economically fix to an internal-thread coupling (12) a pipeline (17) furnished with two slidable external-thread connections (15, 18), the invention contemplates fabricating the two external-thread connections (15, 18) together in the shape of one part only. At a predetermined screw-in torque, one external-thread connection (15) is torn off and as a result one pipeline end (16) is safely retained in the internal-thread coupling (12). The second external-thread connection (18) may be slid to the second end (21) of the pipeline and can fix the latter to a further internal-thread connection. The fixing means and methods contemplated by the invention are automation compatible and, upon fixing, protect the pipeline from being detached from the coupling through faulty handling.

Abstract: A control car roller clutch is manufactured and assembled by providing two annular end rings, a molded unit that integrates the control cars and journal blocks, and a removable carrier ring that temporarily retains the cars and blocks as the integral unit.

Abstract: Machine parts are connected together to form an assembly by means of pins which form an interference fit with passages in the parts and whose ends are flush with two opposed surfaces of the assembly. Each pin is provided with an annular groove spaced from one end of the pin by a distance equal to the distance between the opposed surfaces. A positioning member is seated in the groove and the pin is inserted into an associated passage so that the positioning member bears against one opposed surface. After a tight fit is achieved, the protruding portion of the pin is broken away.A device is provided for testing the tightness of an inserted pin. The device may engage the annular groove and apply a tensile test force. Alternatively, after the end of the pin has been broken away, the device may bear against the end of the remaining pin portion and apply a compressive test force.

Abstract: The present invention relates to a method of producing net structures by connecting annular net elements with connectors. The present method includes a net strip forming process in which a net strip is formed with a plurality of annular sections for net elements arranged in a predetermined pattern and joined with the net strip through joints on the outer edges of the annular sections, a connecting process in which all adjacent annular sections of the net strip are connected to each other with a connector in a position where no joint is provided, and a separation process in which the joints are cut off to separate each annular section from the net strip for formation of the net elements. According to the invention, a net strip is punched to have a plurality of annular sections and with the annular sections kept joined with the strip, the adjacent annular sections are connected to each other with a connector, and then the annular sections are cut off from the strip to form individual net elements.

Abstract: When assembling a magnetic disk cartridge, a liner material strip having a plurality of circular openings arranged in a row at predetermined intervals is fed intermittently in the direction of the row of the openings and cut to predetermined lengths in synchronization with the intermittent feed to predetermined lengths, whereby liners each having a circular opening is formed. A locator pin which is smaller in diameter than the opening and has an arcuate locating side wall portion the radius of curvature of which is substantially equal to that of the opening is inserted into the frontmost one of the openings with the locating side wall portion opposed to the front edge of the frontmost one of the openings when the liner material strip is stopped.

Abstract: A method of assembling computer hard discs (12) onto a spindle (14) with a robot device (22) with only negligible contact forces to avoid generation of contaminating microparticles by scraping contact, in which a spindle supporting table (24) rests on gas film bearing pads (46) allowing frictionless lateral movement. The table (24) is initially positively positioned by locating devices (56) to fix the location of the spindle (14) in horizontal plane, and a disc (12) moved onto a tapering homing fixture (15) previously positioned over the spindle (14). The table (24) is released for frictionless lateral movements as the disc (12) is advanced onto the spindle (14).

Abstract: An aluminum or aluminum alloy profiled section has one or more insulated electrical conductors. Such a profiled section includes at least one linear electrical conductor parallel to the profiled section, formed by the same material as the latter and insulated electrically in a solid insulating filling, a bare surface of the conductor and a bare surface of the filling being covered if required by a second insulating filling.

Abstract: A fastening pin, or peg is partially inserted into an aligned aperture and attached thereto by a webbed flashing. In a one-step assembly operation, the pin is driven further into the aperture as the flashing is broken and driven through an aligned aperture of a second component.

Abstract: A method of producing a device for magnifying displacement of a piezoelectric element adapted to be displaced by application of voltage thereto. The method includes a first step of forming a movable member integrally with a frame through a connecting portion in such a manner as a space for inserting therein a piezoelectric element is defined between the movable member and a base portion of the frame; a second step of fixing the leaf spring to the frame and the movable member; and a third step of forming a separation groove in the connecting portion to separate the movable member from the frame.

Abstract: In a method of fabricating a biasing plate spring for a wire dot print head having an annular part and a plurality of projections extending radially inward from the inner periphery of the annular part, a biasing plate spring intermediate product having two of the projections substantially opposite to each other and connected by an arm, is first formed. The intermediate product is then barrel-polished, and then the arm is removed by cutting. Because of the arm, entry of one intermediate product into the gap between adjacent projections of another intermediate product is prevented, and damage to the intermediate product is thereby avoided.

Abstract: Two plugs each comprises a pair of plastic guide plates with inner sides in which are formed duplicate groove patterns each consisting of parallel V-sided spaced grooves running through the plugs and divided into a central set of smaller "fiber" grooves and a pair of larger "pin" grooves on opposite sides of and spaced from the pin grooves. The two plates in each plug are disposed with their respective groove patterns registering with each other across a transverse gap such that the fiber grooves define a set of fiber channels extending through the plug from its rear to an end face on a front nose on the plug, the pin grooves defining a pair of pin channels having front openings rearward of such end face. Optical fibers from a ribbon type cable extend through the fiber grooves to the front of the nose.

Abstract: A method of producing a metal support for an exhaust gas catalyst. The method comprises the steps of: (a) mating respective end portions of flat and corrugated metal strips in such a manner that respective major portions of the strips extend in opposite directions; (b) putting the mated end portions of the strips between two generally flat holding members; (c) winding the major portions of the flat and corrugated metal strips around the holding members overlapping one on another by a predetermined number of times, thereby to produce an oval structure which includes the flat and corrugated metal strips and the holding members; (d) drawing the holding members from the oval structure thereby to provide a semi-processed oval assembly which has two generally flat bores left therein; and (e) pressing the semi-processed oval assembly in a manner to eliminate the bores thereby to provide a tightly wound oval assembly of the flat and corrugated metal strips.

Abstract: A method and apparatus are provided for forming insert molded circuits. The process includes inserting a circuit network comprised of a lace curtain with a plurality of individual circuits which are connected by interconnect members into a mold and then separating the individual circuits in the mold by cutting the interconnect members while the lace curtain is in the mold. After the interconnect members have been severed, plastic is injected into the mold thereby surrounding the individual traces. A mold for performing the process is disclosed which includes a retractable punch arrangement.

Abstract: A retaining ring of an eyeball return fitting of the type used in swimming pools and spas is provided with a releaseable or breakaway cover cap. The cap closes the end of the return fitting during construction. This permits the finish work for the cement and plaster stages of the pool construction to be effected without the danger of cement or plaster getting into the fitting during construction. After construction has been completed, the cap is released and drops away, carrying with it any cement or plaster which may have hardened on it during construction.

Abstract: A motor is equipped with a magnetic structure, stator assemblies having a non-magnetic molding member for being incorporated in the magnetic structure and coils for being wound on the outer periphery of each stator assembly.The magnetic structure is provided with magnetic pole plate bodies, a recess provided in each magnetic pole plate body, bridge members incorporated in the magnetic pole plate body in such a manner as to surround the recess and a plurality of terminal elements whose base ends are coupled to the bridge members and whose free ends are extended toward the recess. The recess, together with the free ends of the terminal elements, is filled with the non-magnetic molding member. On the other hand, the bridge members are not embedded with the non-magnetic molding member but are subsequently cut and removed, so that the base ends of the terminal elements are arranged in such a manner as to project from the surface of the non-magnetic molding member.

Abstract: Method for manufacturing a timepiece stepping motor comprising the steps of: providing a flat one-piece stator member defining an opening for the rotor and having a pair of diametrically opposed narrow sections on either side of the opening; providing a movement frame having stator locating projections and defining a pair of holes larger than the narrow sections and extending through the movement frame; locating and attaching the stator to the frame with the narrow sections spanning the holes in the frame; cutting through the narrow sections with a laser to sever the stator into two members, utilizing the holes in the frame to dispose of vaporized metal from the stator; encapsulating and re-joining the severed sections with a plastic fixation; and attaching a coil core assembly to the stator members and in magnetic circuit therewith.

Abstract: A method for producing the latch bearing in a latch needle for textile machines of the type in which a latch is pivotably mounted in a longitudinal slot between two cheeks of a needle shank by a hinge pin passing through mutually aligned transversely extending bores in at least one of the cheeks and a bearing portion of the latch between the cheeks. In accordance with the method a cylindrical wire is provided with transversely extending notches at intervals corresponding to the length of a hinge pin. The notched wire is converted by hot or cold treatment into a bittle, hard state. Individual hinge pins are broken off from the wire at the notches, and are subsequently inserted into the bores in the cheeks and the bearing portion of the latch to be securely fixed there.

Abstract: A method for making card roller rings for open-end spinning machines provides that a sawtooth wire (3) is wound onto a tube (1) of multiple ring length (a) and that the teeth (7) of the sawtooth wire (3) are removed at spacings corresponding to the ring length (a) to form a respective circumferential plunge-cut groove (9) extending down to the foot portion (8) of the sawtooth wire (3). Subsequently the sawtooth wire windings (12, 13) within the plunge-cut grooves are secured to the tube (1), whereupon the tube (1) with the sawtooth wire wound thereon is separated into individual card roller rings (2) substantially along the center of the plunge-cut grooves (9).

Abstract: Opposed ones of optical fibers respectively secured in a plurality of guide grooves formed in first and second blocks, are jointed to each other through an optical film formed on at least one of their opposed inclined end faces in such a way that their optical axes are aligned with each other. Further, each of optical fibers similarly disposed on a third block is formed at its one end face with a total reflection film and is arranged in parallel to the optical fibers of the first and second blocks in such a way that an optical signal incident to the respective fibers of the first block is propagated through the splitting films and total reflection films along optical axes of the associated optical fibers of the third block.

Abstract: A position-detecting device is formed by mounting a plate onto a base body. The plate carries a plurality of slide terminals adapted to slide on contact paths of a cooperating member. Sections of the plate which carry respective groups of the slide terminals are interconnected by narrow portions of the plate. After the plate has been mounted on the body so as to situate the slide terminals in predetermined locations, the narrow portions are served to seperate the plate sections into the separate brushes, each having a respective group of slide terminals.

Abstract: A resettable, current-responsive, circuit interrupter device is made by blanking two wide but thin terminals and carrier stubs therefore, and embedding them up to a substantial part of their thickness in a side wall of an insulating housing so that sides of the embedded terminal portions are exposed from the housing material along the side wall inside the housing, so that terminal ends extend from the bottom of the housing to be connected in a circuit and through the top of the housing to be accessible for test purposes. An electrical contact is secured on an exposed side surface of one embedded terminal portion and a thermostatic strip element is secured to an exposed side surface of the other embedded terminal portion to extend closely along the one housing side to normally engage the contact in a very compact, closed circuit position of the device.

Abstract: By complete removal of the friction lining material, grooves or slots are formed in a friction lining made of organic material, the grooves being openings or gaps that are initially closed at the ends. The friction lining is applied as a continuous member onto a support and the ends of the grooves are opened by removal of the friction lining material closing them.

Abstract: A bracket structure assembly is provided for mounting a loose upper deck panel onto a vehicle body in the space between the rear vehicle window and the vehicle deck lid. The bracket structure includes a spacer element for positioning the bracket structure both vertically and longitudinally with respect to the deck lid. Securement means are provided on the bracket structure for mounting of the loose upper deck panel thereon in proper position with respect to the deck lid.

Abstract: A method of assembling a rotor of a steam turbine constituted by disks (2) shrunk onto a shaft, the disks (2) being provided with cavities (4) facing one another and having female pegs (5) disposed in the cavities in one disk (2) and male pegs (6) disposed in the facing cavities (4) of an adjacent disk (2) with each of the disks (2) being shrunk on while disposing the male pegs (6) of the disks into the female pegs (5) of the already shrunk-on adjacent disk, the method being characterized in that spacers (12) are provided in the female pegs (5) prior to inserting the male pegs (6) in the female pegs (5) so that the male pegs (6) do not come into contact with the female pegs (5), with the spacers (12) subsequently being removed.

Abstract: A bracket assembly is provided for mounting a loose upper deck panel onto a vehicle body in the space between the rear vehicle window and the vehicle deck lid. The bracket includes a spacer element for positioning the bracket both vertically and longitudinally with respect to the deck lid. Securement means are provided on the bracket for mounting of the loose upper deck panel thereon in proper position with respect to the deck lid.

Abstract: An electrospark machining system which includes an electrode forming machine which machines an electrode blank into a shaped electrode having a desired profile, an electrospark machine to which the shaped electrode is attached in order to machine a workpiece, and a reference block which is adapted to be attached to the electrode blank and which has a reference surface which can be commonly attached to the electrode forming machine and to the electrospark machine. A method of shaping a workpiece using this system is also provided.

Abstract: A method for manufacturing multiple push-button and conductive members for dual-in-line package (DIP) switches includes the steps of: integrally forming a multiple push-button member and a conductive member in respective molds; superimposingly combining the push-button member and the conductive member together for being pressed as a single solid unit; and cutting each combined solid unit into a plurality of push-button units. Each of the integrally formed push-button members includes an enclosed frame, a plurality of partitioning ribs symmetrically spaced in the enclosed frame, and a predetermined quantity of push-button bodies respectively provided in rows between the partitioning ribs; and each conductive member includes a pair of supporting bands formed in parallel in conjunction with the enclosed frame, and a predetermined quantity of conductive pieces integrally connected in rows between the supporting bands.

Abstract: A bracket assembly is provided for mounting a loose upper deck panel onto a vehicle body in the space between the rear vehicle window and the vehicle deck lid. The bracket includes a spacer element for positioning the bracket both vertically and longitudinally with respect to the deck lid. Securement means are provided on the bracket for mounting of the loose upper deck panel thereon in proper position with respect to the deck lid.

Abstract: The invention relates to a method for the production of a sub-miniature fuse, as well as to a sub-miniature fuse. Known casing with three chambers and a separate cover are difficult to manufacture and are prone to faults due to their complicated shape. According to the invention, an internally substantially smooth surface and externally cylindrical casing is formed, preferably from identical tube halves, whose end faces are closed either by correspondingly constructed connecting electrodes or by concomitantly shaped end walls, the electrodes always carrying the fuse wire on their inside and the connecting leads on their outside. Preference is given to the use of an intermediate member, which encloses the electrodes and the fuse wire fixed thereto. In each case production is simplified. There is also no need for shrink-on tubes for the insulation of contact caps.

Abstract: A type carrier set (10) for a stamp printing mechanism is described which comprises a plurality of type carriers (12) which carry print types (22) at their outer surface in consecutive fields (16). The type carriers (12) are disposed parallel adjacent each other in the order necessary for use in the stamp printing mechanism. The adjacently disposed type carriers (12) are connected together by connecting webs (28) adapted to be sheared off. In the method according to the invention for assembly the stamp printing mechanism using a type carrier set according to the invention in which the type carriers are endless bands, the type bands connected together are separated from each other consecutively in each case on turning for the first time of the setting shaft by shearing off the connecting webs (28).

Abstract: A method of producing concentric knockouts on a planar portion of sheet metal to be formed into an equipment housing. The sheet metal is successively positioned with respect to punch sets of increasing diameter and knockout portions of increasing size are sequentially cut, but for retaining anchors, to surround previously cut portions. Successive knockout portions are cut by punches moving in opposing directions. The punch sets comprise a cutting punch and an embedding punch. The cutting punch cuts and displaces the knockout in a first direction and the embedding punch of the same punch set moves in an opposite direction to at least partially restore the cut and displaced portion within the surrounding portions of the sheet metal.

Abstract: A method for manufacturing a piston of an internal combustion engine, especially for forming a piston gallery portion provided in the piston head for cooling the engine. A gallery member made of a metal pipe having a high thermal conductivity or a salt-core having a shape corresponding to the piston gallery is fixed to a fixing member having a peripheral rim and a plurality of fixing legs extended from the rim. The gallery member or the salt-core fixed to the fixing member is cast in the piston, body, and then, the fixing member is cut off from the piston body. The salt-core is melted away by pouring water. By this method, a piston of light weight and having high cooling efficiency can be manufactured.

Abstract: A cylinder block of a rotary slide vane compressor, having an eccentric inner surface with split inner sleeve members embedded therein and in slidable contact with the vanes. The method for making the cylinder block comprises the steps of preparing an inner sleeve original form of a ferrous material and having a circumferentially closed integral portion. This original form is embedded in the inner surface of the cylinder of aluminum alloy during the step of casting the cylinder block, and thereafter, the cast cylinder block is machined together with the original form to cut away the circumferentially closed integral portion and thereby separate the original form into a plurality of split inner sleeve members.

Abstract: A method coil bobbin (1) with a first flange (3) and a second flange (5) between which a winding space is formed in which a first coil (9) is wound. Around the first coil and electrically insulated foil (13) is fitted, on which one or more second coils (15, 17) are wound. An essentially U-shaped spacer (23) made of an electrically insulating material is placed, before the winding of the second coil (15, 17), around the insulating foil (13) such that its members (27) extend axially into the winding space. Each of the members (27) is provided near the first flange (3) with a first radial projection (29) and near the second flange (5) with a second radial projection (31). These projections define a minimum possible distance between the second coil (15, 17) and the first and second flanges. Each member (27) of the spacer is perferably also provided with at least a third radial projection (33) which separates two successive second coils (15 and 17) from each other in the axial direction.

Abstract: A double splined nut having internal left and right hand helical splines and a method for making the same is disclosed. Circumferentially spaced helical grooves are machined into the exterior of a cylindrical member which is then fitted into the cylindrical interior of a tubular body and bonded or otherwise rigidily affixed thereto. The grooved member is then axially bored to expose the previously formed external grooves, leaving the material between the grooves to form internal helical splines.

Abstract: A magnetic head assembly of a disk drive device has an upper magnetic head fastened to a case side and a lower magnetic head mounted on a gimbal plate of a carriage side. The upper case assembly includes a plurality of leaf hinge springs extending to the vicinity of the upper magnetic head, which is bonded to a supporting plate, and wire leads from the magnetic head are soldered to the leaf hinge spring ends as lead terminals. The other ends of the leaf hinge springs extend to the rear side of the case and serve both as a pivotable hinge mounting of the case to the carriage and as lead terminals to an external read/write controller.

Abstract: A method of making a knockout plug in a sheet of metal is provided. The method comprises the steps of: shearing the sheet metal along a majority of a perimeter of a geometric shape so that a plug is produced retained to the sheet metal by at least one retaining strip; cold working at least one sheared area at a pressure sufficient to cause the sheared sheet metal in the area to coalesce; and shearing the retaining strip so that the sheet metal has been sheared along the entire perimeter of the geometric shape. An appliance having a metal casing and a knockout plug stamped in the casing for providing a vent in the cabinet is also provided. The knockout plug is fully sheared along its entire perimeter and has an area along its perimeter that has been cold worked to produce coalesce between the sheared metal.

Abstract: An armature group for mosaic printing head has a plurality of armatures wherein each armature which is part of an actuation electromagnet associated with one of a plurality of printing needles, is fixed to an elastic arm of a spring steel spider having as many arms as there are armatures. The spider, besides performing an armature positioning function allows the armature group to be handled as a unitary element which is easy to assemble. The thrust arm of each armature further has a double bend so that the plane between such arm and the corresponding needle head is perpendicular to the axis of the needle and passes through the fulcrum of the armature. This minimizes the buckling force which the needle has to undergo during the actuation phase. The construction of the armature group can be accomplished by a completely automated manufacturing process.

Abstract: A method and structure for assembling plastic parts is disclosed wherein a first part is formed with integral projections and each including a tubular shank and a plug attached to the shank by a frangible web. A second part having apertures therein which mate with the projections is secured to the first part by displacing the plugs into the shanks which are thereby caused to expand.

Abstract: Magnetic cores are manufactured from blanks of magnetically permeable sheet material that have core preforms including strip elements that are partially separated from adjacent portions of the blank. Stabilizer strip elements are provided at opposite sides of the preform and are partially separated from adjacent portions of the blank. A tube is attached to one end of the blank and a weight to an opposite end of the blank. After removal of portions of the blank adjacent to the strip elements, the strip elements are wound upon the tube while tension is applied to the strip elements by virtue of the weight. After the winding, the strip elements of the core preform define a core configuration, and the remainder of the blank is removed.

Abstract: A magnetic head of a construction, wherein first and second magnetic cores each having a magnetic gap are joined together with first and second non-magnetic structures, and the lamination is such that the first magnetic core is in contact with the second non-magnetic structure, and that the second magnetic core is in contact with the first non-magnetic structure, the magnetic head having its feature in that it is made up of the magnetic core members and the non-magnetic core members which are combined in the form of a letter "W" in its cross-section having mutually parallel and upright leg portions.

Abstract: A miniature variable inductor comprises a coil soldered to a pair of connecting skids. These skids are clipped to two oppositely disposed lateral walls of an injection-molded plastics cover in the shape of a hollow die. A solid part of the cover and a hollow space lie between these two walls. A central opening through these walls, the solid part of the cover and the hollow space defines a housing for a movable ferromagnetic core. There is a screwthread on at least part of this core. The coil is disposed in the aforementioned hollow space coaxially with the central opening, encapsulated in resin. The central opening has a threaded portion where it passes through the solid part of the cover. This threaded portion is complementary to the thread on the core.

Abstract: A process for manufacturing a piston ring includes the step of forming a gap seal from an elongated member on one side and an "L-shape" on the other side; compressing the ring to close the gap seal and move the two ends into a nesting position; welding a wire across the outside surface of the ring to hold it in that compressed condition; placing a plurality of such compressed rings onto a mandrel; and tightly clamping them in axially aligned positions. The surfaces of the clamped rings are then ground into a cylindrical surface which simultaneously removes the wire and the weld. The nested ends including the elongated member and the "L-shaped" member nest together when compressed into a cylinder.