Abstract: A method of making a connecting rod for attachment to a bearing journal by separation of parts of the connecting rod, comprising: (a) forging a powder metal sintered preform to provide a one-piece connecting rod having an annular wall defining a crank opening with a center axis and with stress risers for establishing a cracking plane that extends across said crank opening; (b) providing access for a compression coupling across the cracking plane; (c) while at ambient conditions, applying tension substantially uniformly across the cracking plane to propogate fracture from the stress risers along said cracking plane and thereby separate the connecting rod into a cap and body with cracked surfaces; and (d) remating the cap and body by applying a compression coupling through the access to draw said cap and body together under guidance and with metal yielding pressure to effect substantially an exact rematch of said cracked surfaces.

Abstract: Integrated circuit dies, while still in wafer form, are prepared for stacking without requiring packaging. Holes are made through a wafer having a plurality of integrated circuit dies and are placed between the dies and adjacent the die pads. A layer of insulating material is placed on the wafer and in the outer periphery of the holes. An electrically conductive connection is made between the top of each pad and the inside of the insulating material in an adjacent hole. The insulating layer and the electrically conductive layer can be further extended to the backside of the dies if desired. The dies are separated from each other and can be assembled in a stack and/or surface mounted to a substrate.

Abstract: A method for securing workpieces of composite type materials and including a fastener adapted to be located in aligned bores in such workpieces with a preselected interference fit, with the fastener comprising a pin having an elongated shank, an enlarged head and enlarged diameter smooth shank section adjacent the pin head, and further having a threaded section extending from the smooth shank section to a breakneck groove located in the shank to define a frangible portion at its free end, the breakneck groove adapted to fracture at a preselected axial load of generally low magnitude, a thin gauged expansion sleeve having an inside diameter less than the diameter of the smooth shank section, the sleeve having an outside diameter permitting the assembly of the sleeve into the workpiece bores with a snug fit, the breakneck groove having an axial strength at least equal to the maximum axial load required to pull the pin member fully into the sleeve with the smooth pin shank section expanding the sleeve into the w

Abstract: A method of cracking bearing assembles including the steps of (a) forming a ductile metal (steel, aluminum or titanium) connecting rod in one piece (e.g., by hot forging) having an annular wall defining a crankshaft opening with preformed surface crevices for guiding the initiation of a cracking plane that extends across the crank opening; (b) charging (i.e., for about 40 seconds) the region of such wall along at least one portion of the cracking plane with hydrogen by means of an electrolytic cell or by means of reacting the metal rod with a strong acid (e.g., concentrated sulfuric) to cause hydrogen to dissolve in the metal to facilitate hydrogen stress cracking thereat, with or without the imposition of static mechanical tensile loading at such crevices (i.e., for about 40 seconds) of a magnitude insufficient to cause yielding of the metal; and (c) prolonging, increasing, or imposing the static mechanical loading (i.e.

Abstract: A wafer supplying apparatus including a supply ring to which a wafer sheet having semiconductor pellets adhered thereto is attached, a ring holder provided on an X-Y table of a pellet pick-up device, the ring holder supporting and placing the wafer sheet onto the upper surface of a cylindrical portion of the ring holder having an external diameter smaller than the internal diameter of the supply ring, a pressing ring provided above the supply ring, a pusher which pushes down the supply ring around the cylindrical portion of the ring holder through the pressing ring, and a fastener which fastens the pressing ring to the ring holder after the supply ring has been pushed down by the pusher.

Abstract: Integrated circuit dies, while still in wafer form, are prepared for surface mounting direct to a substrate without requiring packaging. Holes are made through a wafer having a plurality of integrated circuit dies and are placed between the dies and adjacent the die pads. A layer of insulating material is placed on the wafer and in the outer periphery of the holes. An electrically conductive connection is made between the top of each pad and the inside of the insulating material in an adjacent hole. The dies are separated from each other and may be surface mounted to a substrate by soldering.

Abstract: In a method for manufacturing hybrid integrated circuits, a plurality of circuit patterns are formed on one surface of a board, and a connecting film is stuck onto the other surface of the board. Then, the board is divided into portions having the respective circuit patterns while leaving the connecting film intact and component parts are mounted on the portions. Finally, the individual portions are separated by cutting the connecting film. The circuit patterns may be formed over one surface of the board and covered with a connecting film. The connecting film may be a constituent element of each circuit pattern, such as an insulating layer disposed between conducting layers.

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 light metal component formed in a single piece and which has an aperture in the component, the aperture being entirely surrounded by the metal of the component, wherein a fracture zone is incorporated in the metal surrounding the aperture, with a brittle material incorporated in the component at the fracture zone so that the component can be split at the fracture zone, substantially without any ductile deformation, to separate a cap portion from the rest of the component to allow a separate component to be introduced into the aperture, whereupon the cap portion can be reunited with the rest of the component to close the aperture around the separate component.

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: Method for making split bearing assemblies by fracture separation, particularly pertaining to engine connecting rods, include steps wherein previously clamped body and cap portions are quickly forced apart longitudinally to cause fracture separation of both pairs of integral legs in a single motion while the cap and body are restrained from substantial relative rotation by a clamp of a fracture separation apparatus.

Abstract: A button arrangement which permits the temporary or permanent replacement of a lost button. The button arrangement includes a pointed shaft attached to a flat backing and a front portion which includes a button and a hollow tube which fits over the shaft. The shaft is fitted through the backside of the garment such that the flat portion abuts the garment, and the tube is fitted over the shaft and secured thereon. The flat portion can be separated from the shaft, so that the button can be removed at a later date if necessary.

Abstract: A method of producing a rolling bearing race provided with a continuous rupture seam along at least one area of its periphery and having a seating surface and a race for rolling elements, the rolling bearing race surface being exposed before rupture along at least a portion of the intended course of the rupture seam to high-energy radiation with the local confines transerve to the intended course of the rupture seam and during rupture the surface area exposed to radiation is subjected to tensile stress by an external force, characterized in that the seating surface (2,8) of the bearing race (1,7) is exposed to the radiation and the external force is exerted as a pressure force onto the raceway surface (3,9) along an area directly opposed to the area (6,10) of the seating surface (2,8) exposed to radiation.

Abstract: In a connecting rod of reciprocating motion system in which a larger diameter end portion is divided into a body side bearing half and a bearing cap, and in which after a bearing metal is incorporated in a bearing hole defined by the bearing half and the bearing cap, the bearing half and bearing cap are integrally connected together by bolts, chamfers are made in the peripheral portions of the bearing half and the bearing cap facing their broken and divided surfaces. Such chamfers are made before the dividing of the larger diameter end portion and thus cause the breaking and dividing operation to be facilitated.

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 process for the passivating, multistage compaction of hot iron particles supplied in the form of a packed bed from a reduction unit and for the subsequent breaking apart of the compacted iron band is described. Prior to the final compacting, the iron particles pass through a homogenizing and precompressing stage. Thus, the compacted iron has a pore volume of max. 40% and a density of at least 5.5 g/cm.sup.3. The iron compacted to a band is subsequently guided between the rollers (7,8,11) of a separating stage exposing it to bending stresses such that it breaks apart at the predetermined desired breaking points. The latter have a smaller density than the band regions between them. They can be produced in that in the precompression stage the feed speed is briefly decelerated compared with the feed speed in the compaction stage or in the compaction stage there is less marked compression at these points than in the intermediate regions.

Abstract: A method for making a corrugated thin metal strip wherein corrugations are linear and extend obliquely from one longitudinal marginal edge to the opposite longitudinal marginal edge of the strip. The invention involves passing the thin metal strip through corrugating rolls for impressing a series of single apex, V-shaped chevron corrugations into the surface of the metal strip. The rolling of the strip between the helical gears is done in such a way that the apex of the V-shaped chevron is the last portion to leave the corrugating rolls whereby the apex is in tension and enables metal strip to be split into two obliquely corrugated metal strips along the apices of the chevron.

Abstract: A vacuum wafer expander apparatus and method of wafers for use in electrical circuitry. A plurality of electronic semiconductor devices being connected to a flexible member means suitable for are mounted on a brace or bracket frame member means. The brace or bracket frame member means is suitable for being removably mounted on a bracket mounting means having a groove therearound for accommodating a vacuum therein to allow an abutting portion of the flexible material to be pushed in said groove; thus expanding the flexible member means as well as the plurality of electronic semiconductor devices thereon. The electronic semiconductor devices can thereafter be optically inspected and individually picked up from the flexible member means for processing.

Abstract: Disclosed is a method of manufacturing a semiconductor device which comprises the step of forming grooves in the form of a grid on the upper surface of a semiconductor wafer formed with elements, the step of grinding or polishing the underside of the semiconductor wafer to thereby reduce the thickness thereof, the step of applying a first single-sided, self-adhesive sheet onto the underside of the semiconductor wafer, and the step of stretching the second single-sided, self-adhesive sheet so as to space out each other a multiplicity of semiconductor chips divided along the gridlike grooves of the semiconductor wafer. Each semiconductor chip is picked up and mounted on a lead frame.

Abstract: A floor panel system for use in grain storage and drying bins is disclosed which uses modular perforated floor panels each of which is hemmed across the width of the panel at predetermined points along its length so that panels of various lengths can be provided readily by breaking standard panels along any appropriate selected hem. The hems also reinforce the panels. Each modular floor panel may have a complete hem at one end and a half hem or flange at the other end such that the panels can be readily aligned and interlocked end-to-end by inserting the half hem or flange of one panel into the full hem of a succeeding panel. A transverse clip may be used to hold together two abutted modular floor panels end-to-end and for reinforcing purposes where high floor loads are contemplated. Adjacent panels are abutted together along the sides and are held together by fitting the side lips into rails or support beams.

Abstract: To prepare a split frustoconic jaw intended for the anchoring of a cable, a part is first taken bounded externally by a frustoconic surface and hollowed by a cylindrical axial channel whose inner surface is advantageously striated. This part is sawed into by substantially axial and radial slashes leaving bridges to subsist of small thickness at the bottom of these slashes throughout the central channel. An assembly ring is mounted in an outer annular groove and the whole is subjected to cementation treatment so as to surface harden the jaw while making the bridges fragile.

Abstract: The rate of production of chip resistors is greatly increased by forming rows of chip resistors on a substrate, laser trimming the rows of resistors while still on the substrate, breaking up the substrate into separate rows of chip resistors, applying edge-around terminations to each of the separated rows of the chip resistors and separating the chip resistors from each other.

Abstract: A sorter, constructed to be placed within any sized and shaped automotive glove compartment, is formed from a lattice like grid having fracturable elements for breaking the grid into each of a plurality of shelves, sides and dividers of predetermined size commensurate with the glove compartment and from a plurality of clips configured to engage and retain the shelves, sides and dividers in rigid relationship to one another.

Abstract: A method of dicing a semiconductor wafer in which a physical discontinuity is formed on the surface of the wafer on both sides of a dicing line to limit the spreading of cracks and chips generated during dicing. Thereafter, the semiconductor wafer is diced to separate the pellets.

Abstract: A cam follower shoe for a fuel injection pump is constructed to hold captive the roller of the cam follower. Two shoes are constructed at the same time from a single block of material which is bored to produce a bore and is then divided into two parts by a pair of cuts which extend axially crossing from one side of a diametral plane to the other, the plane being normal to the direction of movement of the shoe in use. At one end of each shoe the surface subtends an angle of less than 180.degree. but at the other end of the shoe when the cuts are straight, the surface subtends an angle of greater than 180.degree..

Abstract: A method of severing laminates (10) of the type having a metal layer (11) and a synthetic plastics layer (12). The method comprises forming a channel section indentation (13) in the laminate (10) along a line (14) on which the laminate (10) is to be severed, the indentation (13) being of such depth as to extend through the full thickness of the plastics layer (12) and through a part of the thickness of the metal layer (11), such that the plastics material along the line of the indentation (13) is substantially displaced laterally, and severing the laminate (10) along the line (14) of the indentation (13) in the metal layer (11). An apparatus for carrying out the method is disclosed as is the application of the method and apparatus to the production of container tops.

Abstract: A multipart article comprising a rod or pin (26) with a sleeve or collar (58) on it is made from one piece of wire by parting off a blank, impact extruding a stem to form the pin or rod, backward extruding a residual portion of the blank to form the sleeve or collar with an internal diameter slightly larger than the diameter of the stem and joined to the stem by a short thin web (64), and then fracturing the web and inserting the pin or rod into the thus separated sleeve or collar.The advantage in manufacturing small articles on a mass production basis is in the economy of forming two parts in one machine operation rather than making them separately, an example being parts of a blind-riveting assembly.

Abstract: The object of the invention pertains more particularly to the art units of the manufacturing of rotary organs for the production and assembly of organs of plastics. The method is characterized in that toothed rotary organs (2) are made by molding directly with their rotational axis (1a) and their supporting cheek (1), and that a countercheek (3) is then made which is equipped for receiving for free rotation the toothed organs (2) and designed for a forced fit on the axis (1a) after the two cheeks have been brought nearer under pressure towards one another, in order to cause the fastening portions (2d) which connect the axes (1a) with the organs (2) to be broken off. The invention is more particularly to be used with the chain guide means of the gear shift devices of bicycles and similar vehicles.

Abstract: An asphalt composition roofing piece having a unique geometry and simplicity of form which enables such piece to be used as a starter piece, edge covering rake covering, and ridge or hip cover.

Abstract: A tamperproof package comprising a container having a neck and an annular radial flange beneath the neck and a plastic closure removably interengaged with the neck. The closure has a top wall and a peripheral skirt. A plastic pilfer band interengages the skirt, such that when the closure is applied to the container, the band is flexed over and engages beneath annular flange on the neck of the container, and when the closure is thereafter removed from the container, the band is prevented from removal from the container and is thereby disengaged from the closure. In a modified form the plastic pilfer band includes an integral liner which is severed from the band and engages the top wall of the closure during assembly of the band to the closure.

Abstract: An overload detection and safety arrangement for a load carrying link chain, including a fuse link having link plates connected by a fuse bar of a tensile strength less than the tensile strength of the remainder of the load carrying chain, the fuse link being laced into the remainder of the chain. The fuse bar is designed to break under predetermined overload conditions, but is positioned and arranged to carry normal tensile loads on the device. A safety link, offset from but substantially parallel to the line of tension through the fuse bar, connects the link plates. The safety link has a tensile strength greater than the tensile strength of the fuse bar and at least substantially equal to the tensile strength of the remainder of the chain, the safety link holding the load when the fuse bar breaks due to overload conditions.

Abstract: Split bearing assemblies are disclosed having separable bearing caps for both single applications, such as connecting rods, and multiple applications, such as engine crankshaft supports, together with methods and apparatus for making such assemblies by integrally forming the caps with the main body and separating them by fracture separation. A two step separation method is disclosed with bore starter notches and semicircular die expanders that minimize split plane and bore distortion.

Abstract: A method and a device for manufacturing multilayer ceramic capacitors, in which a plate of ceramic material composed of several layers is subdivided in the green non-sintered state into separate capacitor elements. For this purpose, by means of notching members, notches of a given depth are provided simultaneously on both sides of the plate in such a manner that spontaneous ruptures are obtained through the remaining thickness of the plate. Due to this method, the contamination of the exposed electrode layers and delamination are avoided. By the use of a frame with resilient walls, the already separated capacitor elements are held together until the notching process has been carried out completely.

Abstract: A method of splitting bearing rings in a direction obliquely crossing their axes. This method comprises forming a notch of substantially V-shaped cross-section in the inner or outer peripheral surface of a bearing ring obliquely or in a V-direction, or forming a notch of substantially V-shaped cross-section in an end surface of a bearing ring at a predetermined angle with respect to the surface, heat-treating the bearing ring, and exerting wedge stress along the notch by a wedge type press-breaking tool.

Abstract: A method for continuously producing a core member to be embedded within a trim, comprises the continuous steps of forming slits in a band-shaped metallic plate by means of slitting rolls, elongating the slit metallic plate by means of elongating rolls and pressing the elongated metallic plate by means of finishing rolls.

Abstract: A pocket clip is attached to the tubular barrel of a writing instrument and the rear open end of the barrel is closed by pressing a pocket clip part over the rear end of the barrel and pressing an integral plug portion of the pocket clip part into the opening at the rear end of the barrel.

Abstract: A process for severing a tube sheet made from a polymeric material to expose bores of hollow fibers having the ends thereof embedded in the tube sheet, with the tube sheet having a cylindrical configuration and a stress raiser extending around the periphery thereof, wherein a ring having a lower coefficient of expansion than the material of the tube sheet is positioned to encircle the tube sheet at a location adjacent to the stress raiser. The tube sheet is then heated to expand it to the point where stress causes the tube sheet to fracture off that portion of the tube sheet encircled by the ring from the remainder of the tube sheet to expose bores of the fibers.

Abstract: A method of manufacturing one or more push buttons and an associated case in two work operations by injection molding. Button and case are molded in the first operation so that the button is integral with the case via two joining members formed on either side of the button. In the second operation a portion is molded under the button for contact with a connection mat or so-called "keypad", the portion being formed with locking lugs for limiting upward movement of the button after depression. Pressure is applied to the upper surface of the button to rupture the joining members and separate it from the case while operatively positioning the lugs with respect to lugs molded in the first step with the case.

Abstract: An insulated wall system and method of construction, which system comprises: generally horizontal metal strapping bands secured to a wall, the metal strapping bands characterized by lines of weakness therein adapted to form tab portions from the metal strapping bands; a solid-panel insulating material placed against the wall and secured by a tab portion of the generally horizontal metal strapping bands, the tab portion extending about one edge of the panel material and against the interior side thereof, so as to secure the panel material against the wall; a generally vertical, metal-bank strapping material secured to the interior tab portion; and wallboard or finished wall material secured to the generally vertical metal-band material, thereby providing for an insulated wall system and method of construction employing solid panel material, without the requirement of wall studs.

Abstract: A magazine for use with a fastener driving tool employing a strip of fasteners formed into a coil, and having a fixed portion to be fastened to such a tool, wall means forming a portion of said fixed portion for engaging such a coil of fasteners, a mounting member on the fixed portion along an axis centrally of the coil of fasteners, a movable attachment member incorporated in the mounting member, and movable between locking and releasing positions, a movable magazine portion defining wall means adapted to engage the coil of fasteners, exit means on at least one of the fixed and movable magazine portions, for exit of the fasteners, a slidable guide member formed on the movable portion, interengageable with the mounting member, and locking abutment means located inwardly of the guide member, for interengaging with the locking means on said fixed magazine portion.

Abstract: A stacking machine and method for pairing and stacking metal plates having teeth struck out and protruding therefrom, which plates are commonly referred to as nail plates. The nail plates that are to be stacked are supplied to a supply section of the machine in streams of longitudinally extending metal plates as the plates exit from a stamping machine. It is in the stamping machine that the teeth forming the nails of the plates are struck out from the plates. These nail plates are supplied to a stacking section of the stacking machine two plate lengths at a time. The stacking section receives the pair of metal plates, which also can be two plate sections with each section being formed of several plates, in a longitudinally extending relationship from the supply section and then reorientates the two metal plates so that the two plates are in a face-to-face orientation. The pairs of plates are then transferred to a stack receiving section.

Abstract: The present invention is a method for the manufacture of bearing rings ruptured along an arrow-shaped partition line for antifriction bearings or similar devices. According to the invention a radial bore is introduced through the middle of the ring transversely of the bearing axis, and in the opposite end faces are introduced V-shaped notches which are displaced in relation to the radial bore in a circumferential direction. The bearing ring is supported on one end and ruptured first on that end by a force directed against the opposite end. The ring is turned over and again ruptured similarly until an arrow-shaped partition line extends from the radial bore to the notches.

Abstract: A shell and tube type heat exchanger having a tube bundle supported at opposite ends in tube sheets is capable of being repaired quickly by closing off opposite ends of a damaged tube using the method and apparatus disclosed. The apparatus comprises a two-part tapered plug assembly which is adapted to be installed in the tube in alignment with the tube sheet and expanded radially outward into tight engagement with the interior of a tube by pulling an inner wedge portion of the plug assembly axially relative to an outer ring portion. The pulling is effected by an hydraulic ram which is connected by a breakaway unit to a pull rod which slides axially relative to a compression tube both of which are received axially within the defective tube. The hydraulic ram pulls the rod relative to the compression tube and thereby draws the wedge inside the ring until the breakaway connection releases the pull rod and enables the pull rod, compression tube and auxiliary parts to be withdrawn from the defective tube.

Abstract: An improved method of making a collector ring enhances the cyclic engagement and disengagement of a spring clutch of the type having an annular spring compressed between a clutch cover and plurality of externally located release levers. The preferred method is applicable to a collector ring which defines a radially extending annular base member having an integral axially extending rim on its outer perimeter. The rim abuts and encircles the outer circumference of the annular spring, while the base member is positioned interjacent the spring and levers for transfering reaction loads therebetween.

Abstract: A circuit board, for an electronic timepiece, having a switching electrode formed on a narrow peripheral surface of the circuit board. The narrow peripheral surface has a pair of spaced indentations, and the switching electrode is comprised of a metallic layer disposed on the indentation surfaces and on the portion of the narrow peripheral surface between the indentations. The switching electrode is fabricated by forming a pair of spaced small holes through a circuit board base plate, and by forming a large hole having a diameter greater than a distance between the pair of small holes and positioned for intersecting the pair of small holes. A conductive layer is plated on the surfaces defining the pair of small holes and on that portion of the surface which defines the large hole that is between the pair of small holes.

Abstract: The wall of a pipe is prepared for a subsequent cutting operation by a double-edged shear plate, by cutting axially spaced circumferential notches in such wall with a flexible strand cutter capable of operating in the limited confines of a housing designed in the rectangular pattern of the shear plate. The flexible strand cutter advantageously employs roller cutters on a power transmission type chain which is tensioned against and moved circumferentially over the wall of the pipeline.

Abstract: An elongate formed and punched sheet metal cornerbead, for use on outside corners, adapted to be easily cut into individual wallboard corner clips, for use on inside corners.

Abstract: A method of forming a mesa in a semiconductor device comprises forming a plurality of such devices on a wafer, mechanically cutting relatively wide channels to a predetermined depth in said wafer at positions around individual ones of the devices to partially separate the devices from each other. The mechanical cutting technique defines mesa walls and plain surfaces between individual devices. These channels are then etched to repair scars caused by the cutting technique and, thereafter, the wafer is broken along the center line of the channels to separate the devices from each other.

Abstract: A tape assembly process attaches semiconductor chips to a tape via thermocompression gang bonding and the tape is wound onto a reel. The tape is fabricated during its manufacture to have a plurality of spaced finger array patterns. The inner finger ends are located so as to mate with the bonding pads of a semiconductor device and are bonded thereto. A ring-shaped strip is included in each finger pattern that joins all of the fingers in each pattern into a unitary structure in which the fingers are accurately spaced. Where the ring joins onto the fingers, weakened regions are introduced and the side of the tape that contains the semiconductor device includes a recess that is in registry with the ring. A ceramic substrate that will ultimately mount the semiconductor device is provided with an array of conductor patterns that match the tape finger patterns. A layer of sealing glass is screened over the ceramic, so as to align with the ring.

Abstract: A channel-shaped trim having a longitudinally extending opening for embracing and clamping an edge flange of a support member and a method for producing such a trim.The trim is comprised of a core member composed of a band-shaped metal network which covered and finally broken either partially or totally and thereby separated into a plurality of transversely extending strips, blocks, or into a substantially continuous strip extending along a meandering line through the trim.The method for producing such a trim includes the steps of preparing a band-shaped network with transversely and longitudinally disposed connecting portions and spaces disposed therebetween, covering the network with an elastic or bondable covering material, such as rubber or a synthetic resin, transversly breaking the connecting portions partially or totally in the covered network and bending the covered and broken network in the transverse direction to produce a channel-shaped trim.