Abstract: Apparatus for forming a panel to a predetermined cross dimension by flangers which form flanges on the opposite side edges of the panel. The flangers are movable toward and away from advanced positions in which to form the flanges. The advanced positions can be adjusted depending on the cross dimension desired. The flangers can be retracted to permit loading and unloading of panels. Forming units are also provided to form tabs on an end of the panel.

Abstract: Flanges are forming simultaneously around multiple holes in a sheet metal part with a press in which multiple sets of tooling are mounted on a pair of plates fastened to the top and bottom platens of the press. The plates have guides for ensuring that the plates, and the tooling on the plates, are aligned when the plates are brought together by closing the press. The tooling includes dies attached to die holders on the upper plate, and punches attached to punch holders on the lower plate using attachments that permit a small lateral movement of the dies and the punches on their holders so that the punches can self-align with the holes in the part when the part is fit onto the punches, and so that the dies can self-align with the punches when the press closes.

Abstract: Automated forming apparatus including a horizontal feedbelt and an overlying gantry containing a number of tool heads for forming alphanumeric trim pieces for sign letters. A number of laterally and vertically controlled tool heads are indexed to the feedbelt and operative per programmed micro-instructions to clamp, bend and cut a spooled trim material to define an alphanumeric shape. One or more formed trim pieces are fitted to a flat panel that is separately formed to a corresponding alphanumeric shape to define a letter which can be used alone or as a cover to a mating canister.

Abstract: A folding press, comprising at least two fixed beams: a first fixed beam (2.sup.1) and a second fixed beam (2.sup.2), to which are connected counterblades (5.sup.1, 5.sup.2), and a ram beam (3) being disposed between these first fixed beam (2.sup.1) and second fixed beam (2.sup.2), and to the ram beam (3) being connected two thrust blades (6.sup.1, 6.sup.2) on both parallel margins of the ram beam, whereby the counterblades and thrust blades constitute a first pair of folding blades (5.sup.1, 6.sup.1) and a second pair of folding blades (5.sup.2, 6.sup.2) while the ram beam (3) serves as joint ram for both pairs of folding blades. A force member (4) has been arranged to produce bidirectional working stroke of the ram beam (3) optionally toward the first or second fixed beam. A manipulation arm (7) is arranged to serve the first as well as the second pair of folding blades.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals of mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.

Abstract: An apparatus is disclosed having one or more punching or stamping tools and a corresponding number of support tools for mating with each punching or stamping tool. The apparatus is adapted to form dimples, impressions, cuts, apertures or otherwise similarly modify the surface of a sheet metal blank, and in which the punching and support tools are both movably provided along a supporting structure formed from two elongated and parallel spaced beam members. Each beam member supports one of the punching tool, or stamping tool, and the support tool in a spaced relationship whereby the tools may be aligned and activated in punching or stamping operation to punch or stamp a portion of a blank positioned therebetween. A conveyer is provided to move the blank between the tools so that the portion of the blank to be modified is moved to a position intersecting the path of movement of the punching or stamping tool and the supporting tool.

Abstract: A device for contouring bone plates is described. The device has a first handle and a first jaw extending from a first end of the first handle. A second jaw is hinged at one end of the region of the junction of the first handle and first jaw, a second handle is hinged at one end to the second jaw between the ends of the second jaw. A strut is hinged to the second handle between the ends thereof, and extends to the first handle. The first and second jaws are provided with at least one set of complementary surfaces for contouring a bone plate.

Abstract: There is disclosed an apparatus and a method for progressively forming high strength surgical needles from bulk needle stock material. The apparatus generally includes a series of progressive needle processing stations. A first series of needle processing stations removes material from needle stock material to rough form needle blanks attached to a carrier strip while a second series of processing stations refine the rough formed needle blanks attached to the strip into the desired surgical needles. The disclosed method generally includes the steps of gutting needle stock material to rough form needle blanks attached to a carrier strip and progressively coining the rough formed blanks into surgical needles. Finally, there is disclosed a high bend strength surgical needle formed on the disclosed apparatus or by the disclosed method. Preferably, the surgical needle is a surgical incision member having a predetermined radius of curvature and an optimized conical radius at the tips.

Abstract: Corrugated sheet is produced by initially forming a corrugation running to the edge of the sheet between a pair of stamping dies or platens, whereupon at least at one end of the corrugation, end pieces with integrated cylinders displace respective rams to flatten the corrugation into the original plane of the workpiece to form plane parallel edge surfaces allowing straight edges of the sheet to be welded to adjacent sheets.

Abstract: Apparatus and method for forming cup-shaped metal container bodies or end shells from a metal blank in a double-acting press having inner and outer rams which operate in a timed relationship. A plurality of blank and draw dies are mounted on a fixed base in opposed relationship to a plurality of draw horns mounted on the inner ram and movable toward the base. A corresponding member of cutting dies and draw pads are mounted on the outer ram and are movable toward the base, whereby the cutting dies cut blank disks from the sheet and the draw pads clamp the disks against the blank and draw dies, followed by the drawing of the container bodies or end shells by the draw horns.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on which a cassette incorporating a plurality of machining means is detachably mounted are disposed at intervals of mp (m being a given positive integer, p being a workpiece-feeding pitch) in the workpiece-feeding direction corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the workpiece-feeding pitches, in which drive means for driving the machining means are provided in the cassette comprising a plurality of machining units, and the driving force of the driving means of a particular machining unit is made larger than the driving force of the driving means of other machining units.

Abstract: A method and apparatus for forming sheet metal parts of complex configuration and/or sheet metal parts including inherent joints. The part is formed in a continuous run through a stamping press wherein a strip of sheet metal is moved incrementally and continuously through a plurality of successive stations where a plurality of hits are made on the sheet to successively cut and form the sheet to gradually form the individual stamped parts. A special compound die is disclosed for forming a complete loop in each part during the run through the stamping press and for forming a doubled over portion of the part including upper and lower layers, and a clinching station is provided as a station within the stamping press for mechanically joining the doubled over layers of the part together to form a successive plurality of separate parts each having a doubled over portion clinched together.

Abstract: A press progressive die for a metallic gasket a convex beading die 3 for forming a convex bead 10b surrounding a seal part is disposed between a piercing die 2 for a metallic plate and an external shape blanking die 4, characterized in that a plurality of slits 6 having a predetermined width corresponding to a width of a convex member 18 is bored in spaced relation on the convex beading die 3 on the female side along the pressing line opposite to a convex member 18 on the male side provided to press and mold said convex bead 10b on a metallic plate which has been subjected to predetermined piercing by mean of said piercing die 2 and progressively fed, and connecting grooves 7 having a depth required to mold a bead by said convex member 18 is bored in the same width as that of the slit 6 between the slits 6. (FIG.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with multiple stage tooling which forms a batch of cups from a strip of sheet metal with each stroke of the press. Each tooling stage includes a plurality of annular draw pads each opposing a corresponding annular blank and draw die. An annular cut edge surrounds each of the draw pads, and a corresponding die center punch is located within each of the draw pads. The tooling stages are positioned at predetermined stepped elevations so that they sequentially blank the sheet metal to form a series of circular disk-like blanks between the cut edges and the corresponding blank and draw dies, sequentially hold the blanks between the draw pads and corresponding blank and draw dies, and sequentially draw the blanks into cups with the die center punches extending into the corresponding blank and draw dies. The tooling stages are symmetrically positioned with respect to the press center line.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals at mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.

Abstract: A method of manufacturing shutters for computer disks, optical disks and the like, includes forming a rib on a connecting member formed between adjoining shutter blanks during bending and cutting processing. The rib is concave in cross-section and increases a strength of the connecting portion such that stress applied during bending processing, and movement of the rolled steel which is used for manufacturing, does not deform the connecting portion. According to this, processing speed for manufacturing may be increased and further, thinner material may be utilized in forming the shutters. Also, at a later stage of processing, the convex ribs may again be flattened.

Abstract: A method for manufacturing a bell continuously and automatically with a number of mold pieces which are movable downward toward a lower mold having a number of mold cavities for engaging with one half of the bell. A plate member is fed step by step through the lower mold and the mold pieces so as to be formed into the bells. The mold pieces are arranged in series so as to form a recess in the plate member, to form four blades, to bend the blades, to feed a sounder into the bell, and to bend the blades again so as to form the outer half of the bell, and to disengage the bell from the plate member.

Abstract: An apparatus for working metal workpieces comprises a frame (1), a rotatable tool turret (29) movable up and down and carrying a plurality of punch tools (32) which can be moved into a working position by rotation of the tool turret. The frame (1) is provided with a corresponding stationary rotatable tool turret (33) as carrier for the die tools (34) associated with said punch tools which die tools (34) can be moved into a corresponding working position by rotation of said tool turret (33). The apparatus is made in such a manner that the centre line of the punch tool (32) located in the working position and the corresponding die tool (34) located in the working position intersects the axis of the tool turret (29) and/or the axis of the die tool turret (33).

Abstract: An index-feed machining system having such a construction that a plurality of machining units on which a cassette incorporating a plurality of machining tools detachably mounted are disposed at intervals of mp (m being a given positive integer, p being a workpiece-feeding pitch) in the workpiece-feeding direction corresponding to a plurality of machining processes. The machining processes being sequentially performed by the machining units at the workpiece-feeding pitches, in which driving devices for driving the machining tools are provided in the cassette comprising a plurality of machining units, and the driving force of the driving devices of a particular machining unit is made larger than the driving force of the driving device of other machining units.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with multiple stage tooling which forms a batch of cups from a strip of sheet metal with each stroke of the press. Each tooling stage includes a plurality of annular draw pads each opposing a corresponding annular blank and draw die. An annular cut edge surrounds each of the draw pads, and a corresponding die center punch is located within each of the draw pads. The tooling stages are positioned at predetermined stepped elevations so that they sequentially blank the sheet metal to form a series of circular disk-like blanks between the cut edges and the corresponding blank and draw dies, sequentially hold the blanks between the draw pads and corresponding blank and draw dies, and sequentially draw the blanks into cups with the die center punches extending into the corresponding blank and draw dies. The tooling stages are symmetrically positioned with respect to the press center line.

Abstract: A process of press-forming a strip fed in its longitudinal direction to continuously produce press-formed articles with arbitrary lengths through forming stages including a draw-forming stage, the process comprising the steps of: a first step of continuously forming a semi-finished product having a middle portion formed over a length corresponding to that of a final product and an unformed leading end connected to an unformed following end of a neighboring antecedent semi-finished product, while feeding a strip in the direction of the strip length at a selected pitch; a second step of simultaneously draw-forming the unformed leading end of the semi-finished product and the unformed following end of the neighboring antecedent semi-finished product to a selected shape, the ends being connected to the respective semi-finished products; and a third step of separating scrap from peripheries of the leading end of the semi-finished product and the following end of the neighboring antecedent semi-finished product.

Abstract: A progressive former and method of producing progressive formers is disclosed in which the bed frame is formed of two side frame members and a spacer member. The two side frame members and the spacer member are substantially fully machined before the side frame members are assembled on opposite sides of the spacer member. Within a given machine size, the side frame members are identical and the width of the spacer member is adjusted to provide the proper spacing between the side frame members for the particular number of work stations in a given machine. By utilizing component parts to produce the machine bed frame rather than a one-piece casting, substantial cost savings are achieved. Further, since the side frame members are identical in machines of a given size having different numbers of work stations, it is economically feasible to produce side frame members for inventory and then assemble them with an appropriate spacer member to provide the desired number of work stations.

Abstract: A feeding apparatus for a metal belting has a basic plate being capable of supporting the metal belting, which has a plurality of through-holes in a feeding direction. The basic plate has slit formed in the feeding direction and a plurality of traveling plates are provided beneath and in parallel to the basic plate. The traveling plates are movable in the feeding direction of the metal belting. A driving mechanism for moving the traveling plates in the feeding direction of the metal belting is provided as well as a plurality of feeding pins which are vertically pierced through the traveling plates. Springs bias the feeding pins downward. A plate cam is provided beneath the traveling plates. The plate cam is capable of applying force to upwardly move the feeding pins, against the springs, in a prescribed range.

Abstract: A tube bending fixture having a plurality of tube bending tools, a pedestal for each tube bending tool, a grid plate for supporting each pedestal, and a grid plate support for supporting the grid plates in a predetermined arrangement. The fixture is built from a simulation program of tool selection, tool location and bending sequence. The simulation program is entered into a computer for viewing to insure that the tools are properly selected and properly located to permit operation in the desired sequence without interference. The computer will output a list of the tools needed and a list of coordinates to establish tool location. The bending tools have clamp rolls which are relatively movable between open and closed positions, and when closed define an arcuate groove. A bending roll is provided for bending a tube around the groove.

Abstract: A twist-forming process and a coining process for a crank shaft are carried out by using one twist-forming press including a twist forming section and a coining section, and a stopper height adjusting means for determining the crank pin arrangement and for finely adjusting the twist angles is integrally incorporated into the twist-forming press.

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 progressive bead forming metal die for forming beads in a metal gasket is constituted by a bead-forming die disposed between a hole punch die and an outer profile punch die. The bead-forming die comprises a pair of upper and lower inner bead boundary base blocks supported by upper and lower holders for pressing a desired bead shape and inner-bead flat sections, a stripper disposed so as to slide along the outer surface of the upper inner bead boundary base block, a die secured in contact with the other surface of the inner bead boundary base block and disposed facing the stripper, a stopper disposed between the stripper and the upper holder to press-form an out-bead flat section between and by the stripper and the die when the upper and lower inner bead boundary base blocks are brought into press contact with each other, and an elastic member for urging the stripper toward the die.

Abstract: The guideway for each working carriage has a predetermined parking position in a bending machine for skein-shaped material, in which several working carriages can be adjusted in positions determined by a bending program in a working plate and which comprises at least one working carriage guideway and a drivable working carriage transport device, with which each working carriage can be optionally coupled for adjustment. Each working carriage positioned for working can be adjusted to its parking position with the transport device and can be adjusted again to any optional position from the parking position by the transport device. A program control unit is preferably provided which clears the working carriages after the machining of a lot size of a bending program to their parking positions with leader and trailer programs and, prior to the beginning of a lot size, brings the working carriages from their store parking positions with a new bending program and adjusts them to the new positions.

Abstract: Described herein is a drive unit for a machining center of modular construction comprising different work modules with tools which are positively controlled with respect to time, e.g. bending tools, front-feed devices, welding stations, assembly units or the like. The drive unit is constructed as a press which comprises the main drive for the machining center. The drive of adjacent work modules is effected via meshing toothed wheels which bridge the interface planes between the work modules, so that the drive unit can be integrated into the machining center in a space-saving and economical manner.

Abstract: In a processing machine, for example an automatic punching and bending machine, it is proposed to drive a plurality of processing devices by a reciprocatingly moved drive rod, control cams being mounted on the drive rod and cam followers being mounted on moving parts of the processing devices.

Abstract: This method relates to the production of connectors each embodied by a row of substantially U-shaped clips formed in their curved part with a row of regularly spaced-apart apertures which separate the hinge elements from one another. The following metal deep drawing and pressing operations are performed consecutively in the central part of a metal strip, forming an aperture of reduced cross-section in the center of the place intended for each aperture required to be present between two hinge elements; widening each such aperture and pressing in the edges to form a collar which projects from a surface of the strip; bending the sides of each collar around on to the corresponding surface of the metal strip; and bending the strip round into a U-shape by the surface towards which the collar edges have been bent round being inwardly directed.

Abstract: Drawn bores similar to a sleeve and provided with an inner thread are used as a substitute for nuts. The starting materials are flat sheet-metal blanks. In the course of step-by-step deformation with shaping tools, the wall thickness of the drawn bores decreases, compared to the starting material. This is true in particular with increased height of the drawn bores and sheet-metal blanks with larger surfaces. Accordingly, the invention is intended to recite a method according to which it becomes possible to produce high drawn bores, having a wall thickness comparable to the thickness of the original material, from sheet-metal blanks with large surfaces for highly stressed screw connections. This object is attained by means of a changed sequence of the step-by-step operation. Flat pressing of the sheet-metal piece is only performed after partial inward crimping has been started.

Abstract: An apparatus for scribing grain-oriented electrical steel strip has a movable die attached to a reciprocating drive and an opposite fixed die. A strip held between the two dies is scribed by the action of the movable die that is moved back and forth by the reciprocating drive. The fixed die positioned with the stroke of the movable die is supported by a plurality of cylinders connected to an accumulator whose pressure is preset to a level of the deformation resistance corresponding to the amount of deflection that varies with the depth of the impressions scribed on the strip.

Abstract: A progressive former and method of producing progressive formers is disclosed in which the bed frame is formed of two side frame members and a spacer member. The two side frame members and the spacer member are substantially fully machined before the side frame members are assembled on opposite sides of the spacer member. Within a given machine size, the side frame members are identical and the width of the spacer member is adjusted to provide the proper spacing between the side frame members for the particular number of work stations in a given machine. By utilizing component parts to produce the machine bed frame rather than a one-piece casting, substantial cost savings are achieved. Further, since the side frame members are identical in machines of a given size having different numbers of work stations, it is economically feasible to produce side frame members for inventory and then assemble them with an appropriate spacer member to provide the desired number of work stations.

Abstract: There is disclosed, a kit of parts for a hand tool (2) for forming electrical tabs (T1,T2) projecting from cable end portions (FC1, FC2) to a plurality of different configurations. The kit of parts comprises a plurality of different tab forming dies (14,16,18), a base assembly (8) having thereon two spaced tab forming anvils (10,12) for co-operation respective ones of the dies (14,16,18), an upper tooling mount assembly (6) having a spline (60) for receiving a selected one of the dies (14,16,18), and an actuating mechanism (4). The tooling mount assembly (6) is mounted to the base assembly (8) so as to be moveable theretowards through a working stroke to cause the selected die (14,16,18), on the spline (60) to co-operate with the appropriate anvil (10,12) to form the tabs (T1 or T2) of a cable end portion (FC1,FC2) laid on a cable receiving surface (92,104) of the appropriate anvil (10,12) to a particular configuration determined by the choice of the die (14,16,18) and anvil (10,12).

Abstract: Two-out terminal strip (44, 44') is produced by stamping and forming the strip such that the terminals (40) on one of the side edges (36) extend laterally in a first direction of the plane of the stock strip (124) and the terminals (40') on the other side edge (36') extend laterally in a second direction which is the opposite of the first direction. The two-out strip is slit along the centerline (30) of the central carrier portion and the resulting single strips (44, 44') of terminals are wound on reels (46, 46'). One of the strips (44') is wound by rotating the reel (46') in a clockwise direction and the other strip (44) is wound on a reel (46) by rotating the reel in a counterclockwise direction. The two strips will then be in the same orientation on their respective reels and re-reeling of one of the strips is not necessary.

Abstract: A punch press includes a driving crankshaft and a plurality of independent punch pressing units. The crankshaft has a plurality of angularly spaced eccentric sections. Each of the punch pressing units includes a slide, a coupler interconnecting the slide and one of the eccentric sections of the crankshaft, a punch carried on the slide, a die set, and a workpiece gripping unit.

Abstract: Disclosed is a crankshaft forming apparatus and method which has forming heads for forming throw sections at any angle 360.degree. about the rotational axis of the crankshaft and orienting the full length of the throw sections of the crankshaft. The throws are checked for parallelism to the rotational axis of the crankshaft. By turning suitable actuators such as screws, the forming heads are pivoted about a vertical and/or horizontal axis to adjust the throw formation relative to the longitudinal axis. In this manner, each forming head may be adjusted in position until all of the respective throws being formed are parallel to the rotational axis of the crankshaft. Also provided is a toggle mechanism which clamps tightly a rod being formed and opens and closes the clamping units for insertion and removal of the rod.

Abstract: An apparatus, and method of using the apparatus for forming multiple bends in the lead wires of a multiple lead integrated circuit package. The apparatus comprises cooperating first form punches which provide a first bend in the lead wires, and a plurality of second form punches and anvils to provide a second bend in the lead wires. The lead wires are held by a clamp mechanism during the bending process so as to prevent damage to the package. The integrated circuit package is provided in a lead frame strip which is indexed through the apparatus so that a plurality of packages are worked at each of the three different positions. A misfeed mechanism is provided to shut down power to the device in the event of a misfeed.

Abstract: A method of changing dies for a press machine of the type including two or more slides (3a, 4a) arranged in a side-by-side relationship of which lower dead point in terms of a crank angle is different from one another, wherein a resilient member (10) is interposed between upper die halves (7a, 8a) and lower die halves (7b, 8b) for the respective slides (3a, 4a) and movement of the respective slides (3a, 4a) is simultaneously interrupted at a crank angle in the proximity of an intermediate angle between the plural lower dead points so that clamping of upper die halves (7a, 8a) to and unclamping of the upper die halves (7a, 8a) from the respective slides are achieved during the interruption of movement of the respective slides, whereby mounting of dies on or dismounting of the same from presses is simultaneously achieved for the respective slides (3a, 4a).

Abstract: A tool carrier for a punch or stamping machine in which the positioning piston-and-cylinder devices for respective actuating elements are disposed with a fixed center-to-center spacing from one another on opposite sides of a plane of symmetry and the tool holders are disposed in the tool carrier with their tools located symmetrically with respect to this plane so that individual tools can be operatively enabled by single actuating elements, larger tools by pairs of such actuating elements and even larger tools by two pairs of such actuating elements in symmetrical relationship.

Abstract: In a system for removing press-formed parts formed in a pressing machine, a loading transfer device is disposed between an ejection position to which a plurality of press-formed parts are simultaneously ejected in parallel from the pressing machine and a loading position established to load the press-formed parts onto each of a plurality of carrier pallets which are on standby in parallel to individually correspond to the plurality of press-formed parts. The loading transfer device comprises a plurality of transfer pallets connected to one another with variable spacings therebetween and reciprocally movable in parallel between the ejection position and the loading position so that the plurality of press-formed parts may be placed onto the individual transfer pallets, and a spacing-varying drive device for varying the spacing between the transfer pallets. During transferring of the press-formed parts by the loading transfer device, the spacing between the press-formed parts is varied.

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

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

Abstract: A press regulating device for detecting can end tab related defects including a plunger assembly for engaging a can end to be tested; a plunger deflection monitoring device; and a data processing device which receives a signal from the plunger deflection monitoring device and a press timing device and which processes these signals to determine whether or not the tested can end is defective and which sends a control signal to the press to terminate press operation upon detection of a defective can end.

Abstract: A die set includes a punch for stamping a cavity in a work piece to produce a flat base surface and sidewalls which are perpendicular to the base surface. A forming bushing applies a deformation stress perpendicular to the stress applied by the punch to direct metal flow. In one embodiment, the impact surface of the punch contains piercing points to increase the depth of penetration of the punch.

Abstract: A progressive former and method of producing progressive formers is disclosed in which the bed frame is formed of two side frame members and a spacer member. The two side frame members and the spacer member are substantially fully machined before the side frame members are assembled on opposite sides of the spacer member. Within a given machine size, the side frame members are identical and the width of the spacer member is adjusted to provide the proper spacing between the side frame members for the particular number of work stations in a given machine. By utilizing component parts to produce the machine bed frame rather than a one-piece casting, substantial cost savings are achieved. Further, since the side frame members are identical in machines of a given size having different numbers of work stations, it is economically feasible to produce side frame members for inventory and then assemble them with an appropriate spacer member to provide the desired number of work stations.

Abstract: This invention provides a method for producing an internally threaded part through a stamping operation in one embodiment of which a die is provided with a curvature greater than that of the completed part. A punch is provided having ridges thereon collectively complementary in cross section to a thread to be produced and of a curvature slightly less than that of said cavity in said die, and a workpiece is engaged by said punch so as to force it against the die and form grooves in the workpiece the full depth of the thread to be produced, after which the workpiece is given a cylindrical shape, bringing the ends of the grooves into registry so as to provide an internally threaded part. Only a single stroke normally is required in forming the grooves.

Abstract: The disclosure relates to improved methods of forming sheet metal of general application, and particularly useful in the formation of certain forms of merchandise display devices having relatively moving parts serving to serially advance stacks of merchandise packages.

Abstract: A process for making blades of an electric plug directly from a linear strip includes: forming a longitudinal metallic strip from a rod coil; punching the strip to form plural blade members; directly flattening and thinning a rear root portion of each blade for crimping an electric wire so that a longitudinal strip can be conveniently formed into a plurality of plug blades without wasting much scraps cut from the metallic strip.