Abstract: A method of making an eyewear frame comprising the initial step of extruding an elongated billet of substantially rigid material having a top surface having predetermined convex cross-sectional initially as extruded curvature and a bottom surface having a predetermined concave cross-sectional initially as extruded curvature. The next step involves mounting a predetermined length of the elongated billet in a holding fixture of a computer numerical control (CNC) cutting machine. Next the CNC cutting machine is operated to cut out predetermined lens apertures and a finished eyewear frame around each of the previously machined lens apertures thereby producing a substantially stress free eyewear frame that is ready to have a stress free lens installed in its lens aperture.

Abstract: Elements with heads confronting each other are blanked out of two opposite sides of an elongated metal sheet. The differences between thicknesses of the elements at a measurement point at or near necks of the elements and measurement points at ears of the elements are averaged, and a distance between corners of the metal sheet and a counter load of counter punches are established in order to keep the averages in an allowable range. When elements are blanked out of the metal sheet with the distance and the counter load thus established, even if the metal sheet is laterally displaced out of position, a belt assembly made up of the elements blanked out of the two opposite sides of the metal sheet and mixed at a ratio of about 1 to 1 poses no problems because variations in the thicknesses of the elements blanked out of one of the two opposite sides of the metal sheet and variations in the thicknesses of the elements blanked out of the other of the two opposite sides of the metal sheet cancel each other.

Abstract: An apparatus for serially making formed parts from a web of deformable material with a stud mounted therein having a plurality of progressive die forming stations for forming multiple parts from the web by advancing the web through each forming station. In one embodiment, the apparatus has feeding, driving and transfer mechanisms for controlling the feeding and insertion of studs at spaced locations into the web.

Abstract: A press has a tool which comprises an upper tool part and a lower tool part. The upper tool part is held on the press slide, while the lower tool part is stationarily mounted in the press frame. A movable forming element, such as a shearing blade, is provided in the lower tool part. The press drive is used for driving the shearing blade. For this purpose, a hydraulic force transmitting device is provided in the lower tool part and is actuated by way of a pressure pin. For the actuation, the slide or an element fixedly connected with the slide is used, the slide, in turn, being driven by the press drive. A hydraulic force transmitting device in the lower tool part permits a liberal tool construction and an arrangement of corresponding force transmitting devices for the at least temporary coupling between the slide and the hydraulic force transmitting device at points which hinder neither the access to the tool nor the workpiece transfer.

Abstract: An apparatus for serially making formed parts from a web of deformable material with a stud mounted therein having a plurality of progressive die forming stations for forming multiple parts from the web by advancing the web through each forming station. In one embodiment, the apparatus has feeding, driving and transfer mechanisms for controlling the feeding and insertion of studs at spaced locations into the web.

Abstract: An apparatus and a method for producing a heat dissipating element having a multiplicity of pins arranged in parallel rows and columns in longitudinal and transverse directions from a generally longitudinally extending extruded member having a base and a number of transversely spaced longitudinally extending ribs on the base. A cover frame having a number of transversely spaced longitudinal grooves is placed over ribs to establish a supporting relationship between the cover frame and the free ends of the ribs. The support provided by the cover frame to the ribs facilitates a subsequent cutting operation by a cutting tool on the ribs, thereby obviating potential damage to the ribs.

Abstract: A bottom for a paper cup is formed by advancing a punch against a paperboard web to push the web against a cutting edge which cuts out a circular cup bottom blank from the web. The punch is kept in a forward state to clamp an outer peripheral portion of the blank immovably against a surface of a sleeve. A reciprocable draw is advanced against a center portion of the blank to push the center portion into a circular opening of the sleeve while maintaining the clamping force, to cause the center portion of the blank to become stretched. The clamping force is then progressively released to permit the outer peripheral portion to enter the opening and become bent to form a lip extending at a substantially right angle. The lip is compressed within a gap formed between the draw and a surface of the opening. Because of the stretching of the blank, pleats formed in the lip are only in the form of micropleats that are flattened in a non-folded over state.

Abstract: A hydraulic press has closed loop feedback control on a slide, a slide pad and bolster cylinders. Hydraulic cylinders actuating various components of the press are controlled according to ideal position estimates to produce consistent and precise pressing action. A closed loop control consists of an ideal position/pressure value generator, a position/pressure detector and an arithmetic unit comparing the ideal and actual position/pressure values. Using the ideal and actual comparison result, the arithmetic unit produces a control signal to drive a cylinder to a desired position/pressure. The hydraulic press is capable of performing several operations on a workpiece in one press cycle, an improvement over presses requiring several operation steps or die changes. The bolster cylinders augment clamping force, reduce shock, and improve die alignment to produce better results with less wear on press components.

Abstract: A process for manufacturing a ring that has at least one cylindrical end section that ends in a chamfer is disclosed. The process entails providing a flat-shaped article which is formed of a material capable of being deep-drawn. The flat-shaped article is stamped to provide indentations which correspond to the chamfer in the finished product. The flat-shaped article is then punched out to form a preform. The preform is then deep drawn, converting the preform into the shape of the ring. In the step of deep drawing the preform, the indentations form a chamfered section on the ring.

Abstract: The invention concerns components of food cans (1), can bodies (6), and ends fabricated starting from a stratified construction constituted by a foil of plastic material on each of the faces of which adheres a metal foil and their fabrication process. The components are characterized by the nature of the material, metal-polymer-metal construction and by the fact that ratio of the plastic thickness to the sum of the metal thicknesses is greater than 0.5. The fabrication process is drawing in one or several passes characterized preferably by the particular shape of the punch and of the die plates. The invention applies equally to the fabrication of food cans as to ends for food cans or for beverage cans.

Abstract: A system for making printing plates for newspaper, which can make, with great efficiency, replacement printing plates to be used when a printing face of the printing plate mounted on the plate cylinder of the rotary press is to be changed in part. The plate-making system is built by linearly arranging in series a plate feeder 2, an exposure unit 3, and a developer 5 so that the exposure unit 3 may directly form images on the printing faces of a plate material 12 in accordance with image drawing signals from a computer to make a printing plate P large enough for at least several pages.

Abstract: An apparatus for serially making formed parts from a web of deformable material having a plurality of progressive die forming stations for forming multiple parts from the web by advancing the web through each forming station. In one embodiment, the apparatus has a control system for measuring parts formed in the apparatus and adjusting the relationship between first and second die portions of the apparatus to keep the parts formed in the apparatus within predetermined specifications.

Abstract: A cutter/bender apparatus is provided for selectively cutting and bending a workpiece. The bending member includes a bending pin actuated by a hydraulic cylinder that moves the bending pin into and out of engagement with the workpiece to clamp the workpiece against a support plate. When clamped, another hydraulic cylinder lifts a movable bending member toward the workpiece, bending the workpiece about the bending pin in the process. The cutting member includes a fixed cutting member and a movable cutting member mounted in side to side abutment. The cutting members include a slot that extends laterally therethrough in which the workpiece to be cut is placed. The hydraulic cylinder that operates the movable bending member also provides motion for the movable cutting member. As the movable cutting member moves, it moves the aligned slots of the individual cutting members out of alignment, shearing the workpiece in the process.

Abstract: A carpet fastening system and method of manufacture in which an exemplary two, complementary, substantially identical carpet fastening strips are fashioned along side, but opposed to, one another in interdigitated fashion from a single, longitudinally elongated or extended section of flat sheet metal in a cutting-bending process, each of which fastening strips (100, 200 & 300) is ultimately affixed to the back-side of the a wall board (10) or to a wall baseboard (8), preferably with its wall engagement tabs (101, 201 & 301) being substantially flat, presenting either a flat, face-to-face, extended surface interface (FIGS. 1A & 2A) with the back-side of the wall or at least preferably a continuous or at least substantially extended edge (FIG. 3A) in engagement with the back-side, bottom edge of the wall baseboard, in order to secure "wall-to-wall" type carpeting about the walls.

Abstract: The present invention provides a method and apparatus for forming a plurality of parts, such as spade-type boring bits, from a continuous stock material. Thus, the various steps of the forming method of the present invention can be performed to predetermined portions of the continuous stock material, prior to separating the continuous stock material into a number of discrete parts. The efficiency of the forming process is enhanced since individual parts need not be individually transported and oriented during the forming operations. By not requiring that the individual parts be separately transported and oriented during the forming operations, the quality of the parts formed by the forming method and apparatus of the present invention will also be enhanced since such separate transportation and orientation of individual parts generally increases the opportunities for misalignment and contributes to poor tolerance control during the manufacturing process.

Abstract: A type of automatic cutter rotating mechanism for wire forming machine, on the circumference of the rotating spindle of said wire forming machine is fitted with a rotating unit; said rotating unit can be driven by a first servo motor via a transmission mechanism; there is another second servo motor that will drive the rotating spindle to rotate via the transmission mechanism; on the machine body and the rotating unit are several sets of forming units; each of the forming units having a third servo motor; said third servo motor can drive a cam to rotate via the transmission mechanism; said cam has a cam groove; on the machine body is fitted with a first rail; on the first rail is a transmission unit; on the transmission unit is a first roller; the first roller is located in the cam groove of the cam; the forming unit has a second rail; said second rail is fitted on the transmission unit; on the second rail is a cutter unit; on the cutter unit is fixed a forming cutter; the cutter unit has a second roller; said

Abstract: A covering (A) which is developed as closure for infusion bottles (3) or the like, having a cap (1) adapted to be flanged at its lower edge (11) onto the neck (2) of the bottle, the cap having a hole (9) in its top (8) for the formation of a puncture region, and in order to obtain a structural shape which is of simpler manufacture and more favorable for disposal, the hole (9) is closed by the foil section (16) of a supplementary cap (17) which, as a result of that fact that it extends to the lower edge (11) of the cap (1), can be flanged with the latter and is attached by adherence to the cap (1).

Abstract: Elongated generally rectangular in-section conductive metal bar stock is formed by extrusion to form a post type electrical bus connector. The shorter dimension is approximately the diameter of the posts to be formed, while the longer dimension is approximately the height of the posts plus the thickness of the bus or bar from which the posts will project. The narrow end forming the bus has a triangular ridge. The bar stock is cut-to-length dictated by the number of posts to form blocks which are then loaded into specialized pallets of a machining center. The machining center is the type having at lest two pallets, one being loaded while the other is indexed with respect to the tool spindle. The machining center also includes an automatic tool changer. The machining center mills the posts with a hollow center flush mill, drills the hole in the posts and forms tapped holes followed by deburring. The bar stock may have extruded L-shape flats, one of which forms a pad for a compression type connector.

Abstract: A lamp base locking clip comprises a first end having a given thickness; an intermediate portion having a thickness at least approximately 3 times said given thickness and a second end having said given thickness. The intermediate portion is defined by opposed, space apart, first and second surfaces, said first end being contiguous with said first surface and said second end being contiguous with said second surface. In a preferred embodiment the clip is formed from a single piece of ribbon material and said intermediate portion is formed by folding said ribbon to have two reentrant portions. The preferred embodiment is especially suited for automation.

Abstract: A process for converting sheet stock into a seamless outer shell for a toroidal shaped hybrid inflator for air bag inflation systems. In the process a seamless toroidal shaped shell is fabricated from sheet stock by a sequence of process steps comprising first drawing the sheet into a cup shaped blank, with curved transitions between the bottom wall and the sidewall, and then shaping the open end of the cup to the desired toroidal shape while simultaneously thickening the areas adjacent to the perimeter of the open end of the cup and finally removing the central portion of the bottom of the cup--thereby producing the desired shell.

Abstract: A tubular body (74, 102) having a deformable internal annular skirt is made from a blank (10, 80) having a stopped bore (20) which terminates at an end wall (24). First, an aperture (40) is formed in the end wall (24) to provided a through bore, of which a main region is provided by the formerly stopped bore (20). The aperture (40) is made to taper towards the main region and to a diameter substantially smaller than that of the main region. Material peripherally of the aperture (40) is then swaged towards and into the main region, and radially outwardly in the main region, thereby forming the swaged material into a skirt. The tapering aperture (40) can be formed by use of a punch (30) and a die (32) having a die aperture (36) larger than the punch diameter. By making the aperture (40) not radially symmetrical, the resulting skirt (70, 98) can be made of unequal lengths on opposite radii.

Abstract: A method of shearing a thin metal sheet having a thickness of approximately 0.1 mm or less so as to be separated into a product and scrap by a pair of dies. A chamfer or a round having a size of approximately from 5 to 10 times greater than the thickness of the thin metal sheet is arranged at the lip of a first die which presses one portion of the thin metal sheet which is to be scrap. A chamfer or a round is not substantially arranged at the lip of a second die which presses the other portion of the thin metal sheet which is to be a product. A backing material and the thin metal sheet are overlapped so as to be a laminate. The backing material has a thickness of approximately 2 times or more greater than that of the thin metal sheet and is formed of a flexible material having a very small elongation and is soft enough not to substantially prevent the thin metal sheet from being sheared, such as, for example, paper.

Abstract: An apparatus and method are provided for cutting a sheet of material into a plurality of segments having curved edges. A sheet of material is placed on a frame having a horizontal support member. A clamping device secures the sheet and a first mechanism moves the clamping device and sheet in an axial direction. A cutting head assembly is provided with a passively rotatable knife adapted to cut the sheet as the sheet moves in an axial direction past the knife. The cutting head assembly is rotatable about a vertical axis and movable in a lateral direction perpendicular to the axial motion of the sheet. A second mechanism moves the cutting head assembly in said lateral direction, and a third mechanism rotates the cutting head assembly. To produce a continuous cutting line, a controller sends a signal to the first, second, and third moving mechanisms which simultaneously moves the corresponding components at a desired rate and distance.

Abstract: A press working apparatus has a press machine provided with a pair of press dies. The press machine presses a preheated metal slab being transferred in a feeding direction with the press dies mutually opposed to press the metal slab in a direction perpendicular to the thickness of the metal slab. Each press die has a pressing surface facing a respective surface of the metal slab. The pressing surface of each press die has a predetermined length extending in the feeding direction of the metal slab. At least one of the pressing surfaces has a cross section perpendicular to the feeding direction of the metal slab. The shape of the cross section gradually changes along the feeding direction of the metal slab so as to have a predetermined sectional shape for forming the metal slab into a required sectional shape. At least one surface of the metal slab is gradually formed into a predetermined sectional shape as the metal slab is passing through the press machine.

Abstract: A forging method for making a forged product from an elongate steel bar material. The forging comprises a heating step in which the elongate bar material is heated, a cutting step in which the heated bar material is cut into billet materials each having a predetermined length, and a forging step in which the billet materials are successively forged. In this forging method, when an abnormality arises in the forging step, the cutting in the cutting step is interrupted and the bar material in the heating step is maintained in the heating step without being transferred toward the cutting step. Additionally, unless the abnormality is normalized within a predetermined limit time, the cutting in the cutting step is restarted and the billet materials formed after the restarting of the cutting are transferred to a storing apparatus which is outside of a normal forging line.

Abstract: An apparatus and method for cutting a pipe includes first knife means having a cutting edge adjacent a surface of the pipe and second knife means having a cutting edge adjacent an opposite surface of the pipe. To cut the pipe, the first knife means is moved into an overlapping relation with the second knife means such that a first portion of the pipe is cut, the first knife means is retracted and rotated about the axis of the pipe into a position adjacent a second uncut portion thereof, and the first knife means is again moved into an overlapping relation with the second knife means such that a second portion of the pipe is cut.

Abstract: A malleable sheet of material is introduced into a progressive die system having a plurality of stations containing one or more dies for forming a predetermined configuration in the malleable sheet of material as the sheet progresses through the system. At least one strengthening means is formed along the sheet of material at an early station in the progressive die system for strengthening the sheet of material such that the sheet can be controlled at subsequent stations. Die related operations are then performed on the sheet of malleable material by the progressive die system until a completed part is created.

Abstract: A piercing die including a punch and a die cooperating with each other to effect a piercing operation on a metallic workpiece sheet, the punch having an outer peripheral edge having a closed profile at a working end thereof. The outer peripheral edge of the punch has a first and a second chamfered portion which are formed such that the amount of chamfer of the first chamfered portion is larger than that of the second chamfered portion. The first and second chamfered portions are formed along large-curvature and small-curvature portions of the closed profile of the punch, respectively, and/or along acute and obtuse outer peripheral portions of the punch whose working end face is inclined with respect to the direction perpendicular to the piercing direction. A piercing method using the punch and die is also included.

Abstract: An attaching sleeve for a floating nut assembly is formed from rod or wire stock by successive cold heading or cold forming operations. The steps involve cutting off a longitudinal segment from the stock, forming a flange on the front end of the segment, forming a centrally disposed opening through the segment, and forming longitudinally extending ridges projecting outwardly around the periphery of the segment. The attaching sleeves made by the method of the present invention have accurately positioned ridges or knurls which will consistently mate with a similarly configured opening in panels to which the floating nut assembly is to be secured.

Abstract: A method by which leads of a semiconductor component are bent into their final shape using a roll forming process to bend the leads into the desired shape before separation of the individual components. The roll forming process achieves a final form by passing a lead frame holding a plurality of the semiconductor components through a series of form rollers which progressively bend the leads into the final shape. The method can be designed to cut the components free from the lead frame as a final step, minimizing the individual handling of the miniaturized components.

Abstract: A method of manufacturing a casing of a "Parrot-type" locking device; this kind of locking device is currently used in manufacturing ornamental items. The metallic band from which the flat structure (1) is punched is engraved with the track (2) and the markings (7), then the slot (8) is cut together with the outline of the structure (1) that will later be formed into a hairpin bend along its axis of symmetry in order to house the spring trigger in its central part while the upper end is flattened and bent as a hook thus giving origin to the operating ring (9) of the locking device.

Abstract: A clip and process for its manufacture includes feeding a strip into a cutting and bending machine. The strip is formed into blanks such that one end of the blank has two prongs. The border of the area between the prongs on the first end matches the outline of the prong on the second end. The clip is then bent into a C-shape and the prongs are bent inwardly.

Abstract: This invention relates to a method of manufacturing an ignition file for a lighter by a press and a device therefor, more particularly to an improvement of a punching operation of an axial hole for mounting an ignition file. A material pressed into a disk-like configuration is prepared and a concave portion is provided in the approximate center of both sides of the file member. A hole is punched between concave portion having a diameter smaller than that of the concave portion. The fin of the file member caused by punching is absorbed in a gap provided inside the die wall while the fin projecting toward the die hole to be punched is absorbed in said concave portion.

Abstract: An useful method of producing a lot of bearings in the form of a press worked bush is initiated with production of blanks having four corner edges chamfered. In the notch forming and cutting die section comprising upper and lower die halves a strip of metallic material that is called hoop is pressed stepwise to form a plurality of V-shaped notches of which depth increases stepwise toward the outlet of the die section. On completion of forming of notches the hoop is cut off at the center of the last V-shaped notch with the aid of a pair of cutting tools. The die assembly usable for carrying out the method includes an U-bending die section and a circle bending die section which are located in series.

Abstract: A crimping die apparatus for crimping an electric terminal upon the end of an electrical conductor and severing the terminal from a carrier strip during the crimping operation by means of a cutter driven in its severing action by crimping action of the die is provided with conductor or wire locating fingers opened and closed by motion of the die. The fingers are operable to grip the conductor closely adjacent the plane of action of the cutter and actuation of the cutter is accomplished by the fingers as the fingers align the conductor with the terminal which is to be crimped about the conductor.

Abstract: A work tool for the separation of tubes, wherein two deforming rollers rigidly mounted on the tool are moveably arranged tangential to the tube for separating the tube up to a remaining section by deformation without cutting. Thereafter the full separation is effected by a cutting roller movable radially toward the tube and advanced thereto by the work tool.

Abstract: A method for quickly manufacturing a connector plate of varying design strength in a minimum size plate for joining wooden members which approximates the ideal connector plate for that particular design, thereby making it unnecessary to use plates of greater strength than required. The plate is produced with a controlled number of teeth extending transversely outwardly from one major side of the plate in varying patterns. The new and improved method includes feeding sheet metal stock of predetermined width through a die having a plurality of punches that are controlled for relative movement with respect to the stock, striking the sheet metal plate with the die at predetermined intervals to form the particular desired pattern of teeth extending from the plate and leaving a plurality of longitudinally extending slots formed in the plate, and cutting the plate when the desired total length of the plate is reached.

Abstract: A metal working press having a base, a die set located over the base, and coaxial primary and secondary rams movable towards and away from the base to drive the die set through a working stroke and return it to an open condition. The die set includes upper and lower die assemblies and the upper die assembly is connected to the primary ram in such a manner as to prevent axial separation but permit lateral movement of the die set relative to the ram whereby the die set can be moved into and out of the press. The upper die assembly includes two die members which are relatively movable in the axial direction of the ram and the extent of that relative movement is preset by a lost motion mechanism existing in the connection between the primary ram and the upper die assembly and also by engagement between opposed surfaces of the two rams.

Abstract: Apparatus for crimping electric terminals on electric conductors is disclosed which includes a locator arm operable upon initial actuation of the crimping die to accurately locate the terminal relative to the die before the terminal is engaged with the crimping elements of the die. The apparatus also includes a stripper member operable during the initial stage of retraction of the die to strip the crimped terminal from the die.

Abstract: Fine die stamping of workpieces from sheet metal is effected by clamping the workpiece between a die plate and guide plate, supporting the portion of the material to form the article by an ejector which is displaced along with the punch, and driving the supported portion of the material into a hole in the die plate having flanks tapered away from the guide plate and punch so that swaging occurs on the separated portion with or upon its separation from the balance of the workpiece material.

Abstract: A method of forging a bifurcated member having closely spaced parallel portions including the steps of forging the member to form diverging bifurcated portions, and coining the diverging bifurcated portions inwardly toward each other into substantially parallel relation having a narrow slot therebetween.

Abstract: A method of forming a flat plate swing valve shell from a commercially available forged or swaged pressure vessel head having circular sections in horizontal planes and elliptic sections in vertical planes. The shell is formed by cutting the head along a vertical axis to form two halves, rotating the halves outwardly with respect to each other and repositioning them so their original base edges are juxtaposed and the two halves form a continuous enclosure having an open base and which has elliptic sections in both vertical and horizontal planes, and welding the two halves along said base edges to form a unitary valve shell.

Abstract: An improved apparatus for and a method of trimming an outwardly directed flange at the end of a metal container body and severing the ring of scrap removed employs two substantially semicircular concave cutters supported for rotation about spaced parallel axes disposed substantially in the plane of the flange to be trimmed and driven for rotation about their respective axes to engage the flange substantially simultaneously to sever the scrap ring around substantially the entire periphery of the container. The ring of scrap is cut into four pieces either by initially die-cutting or otherwise removing segments from opposed sides of the flange tangent to the trim line prior to engagement by the rotating arcuate cutters or alternatively, the arcuate cutters may sever the scrap as a complete ring and sever the ring into pieces upon continued movement in their arcuate paths past a stationary clipper block spaced below the container flange.

Abstract: The amount of materials in a piece of tubular stock is measured before the stock enters a stretch-reducing rolling mill and the mill is so controlled that the finished tube can be cut into lengths without the occurrence of overlengths or underlengths. In the case of a seamless tube, the piece of tubular stock is weighed and the flying means which cut the finished tube are so controlled that the lengths of all the finished pieces lie within prescribed tolerances so that there is no waste, other than the usual cropped ends. In the case of welded tube, the thickness of the strip material from which the tube is made can be welded, and the welded tubular stock can be cut to a suitable length to ensure that no overlengths or underlengths are obtained after the stretch-reducing and cutting of the finished tube into pieces of prescribed length, within tolerance limits.

Abstract: A method and mechanism for forming a hole through a forged workpiece. During the forging operation an indentation is formed in the upper surface of the workpiece. While the workpiece remains in the forging press, a trepanning tool is placed in the indentation and the top die of the press is used to force the tool almost through the workpiece leaving a thin wall at the bottom of the hole. The workpiece either may be removed from the press while the wall is knocked out to complete the hole, or preferably the workpiece remains in the press and the top die is used to knock out the wall. If the workpiece remains in the press, preferably it is supported on a locating ring which aligns the workpiece and trepanning tool with the top die. Also disclosed is an improved trepanning tool which has external and internal sloping faces extending around its circumference at its lower end.

Abstract: A machine for use in the shaping of the leads of electronic components is described herein which includes a work transporter in the form of a belt or a wheel or the like which has a plurality of pockets formed in it which are proportioned to receive the body portion of the component. The transporter is resiliently deformable in an area of the pockets and the pockets are proportioned to receive and apply a retaining force to the main body portion of the component to prevent movement of the component relative to the transporter. At least one lead forming mechanism is operable in the work path for forming the leads to a predetermined configuration.

Abstract: A method for manufacturing a drum brake shoe comprises the steps of providing a strip of material, forming a plurality of connected blanks with the strip, bending each blank to form an arcuate surface with adjoining sides, cutting one of the blanks by serving a connecting link and trimming the one blank to form a contour for the adjoining sides. Thereafter, a friction lining is attached to the arcuate surface.

Abstract: An arc-like formed product, such as bearing metal, is manufactured from a strip of sheet metal, by introducing the metal strip in a tangential direction to a cylindrical forming surface of a die, bending and rolling the metal strip along the forming surface of the die into an arc shape, cutting both ends of the formed metal strip at both ends of the forming surface of the die while pressing the metal strip against the forming surface of the die in a range of at least 1/20 to 1/3 of its length, transferring the formed strip piece of metal into a coining die and coining the same.

Abstract: A method of making elements with profiled cross-section from sheet metal for use in a driving belt by a rolling process, for providing a strip with a middle groove in longitudinal direction and by rolling the material continuously symmetrically with respect to that groove to two profiles punching out the elements on both sides of the middle groove, with their longitudinal direction in the direction of movement of the strip, according to lines which are located at accurately predetermined distances on both sides of the groove.

Abstract: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.