Abstract: A low voltage high current permanent magnet DC electromagnetic heteropolar motor, including (a) at least one permanent magnet rotor; (b) a shaft in mechanical communication with the rotor such that axial rotation of the rotor causes axial rotation of the shaft; (c) at least one stator winding; (d) a plurality of switches, each functioning to provide commutation switching for the stator so as to generate a torque on the rotor and thereby cause said axial rotation of the shaft, wherein a terminal voltage of said machine is equal to the voltage of one electrochemical cell, and wherein the power of said machine is at least 1 kW.

Abstract: A method of fabricating a base plate for piezoelectric actuation, comprises providing a plate having a major surface, striking a first removable portion of the plate in a first direction substantially normal to the major surface to shear the first removable portion relative to the plate by a shear distance that is less than the plate thickness. Striking the first removable portion in a second direction substantially opposite the first direction to reduce the shear distance by a reduction in shear that is less than the plate thickness. Leaving it the first removable portion in place rather than removing. Alternately, the removable portion may be created by lancing one or more portions spanning at least one opening through a base plate adjacent a first side of at least one opening and adjacent a second side of the at least one opening.

Abstract: A method is provided for producing chain link plates for a plate link chain with alternating inner chain links and outer chain links, where the contour of the chain link plates has several punch sections and two face side and rear side contact sections which, after punching out the punch sections from the sheet metal strip provided, are first connected to complementary contact sections of adjoining chain link plates and separated in a subsequent separation cut. Further provided are bush or roller chains with outer chain link plates thus produced and a corresponding chain drive for an internal combustion engine with such a bush or roller chain.

Abstract: A flat harness is machined by providing a punching machine that includes a first punching device and a second device, and forming different types of hole portions in the shape on the insulating portion of the flat harness in a die cutting process by using the first punching device and the second punching device.

Abstract: A method of manufacturing a stator core is disclosed. The method includes advancing a blank at each of a plurality of press cycles to form a segment at each of the press cycles and shaping the segments. Shaping the segments further includes activating a tooth punch, activating a mounting-ear punch, and activating an joint punch. The method also includes separating the segments from the blank.

Abstract: The invention relates to a method for laser-cutting sheet steel (1), wherein a sheet steel (1) is gradually inserted in a defined position into the cutting area (2) of a laser cutter in a direction of advance V in order to machine it. The sheet steel (1) is machined by laser cutting in a machinable area corresponding to the length of the cutting area (2), in the entire machinable area or only in a section thereof. The machined part (8) and the non-machined part (8) of the sheet steel may also only overlap in some sections (10). An automatic discharge device is also provided. The manufactured parts and the remaining grid are likewise cut from the sheet steel (1) by laser cutting. The method can be repeated in several machining steps until the sheet steel (1) is completely machined, the results of the preceding machining step being taken into consideration for the subsequent machining step. The invention allows to optimally utilize the sheet steel (1) even when using smaller laser cutters.

Abstract: A miter saw with a cutting alignment device includes a base with a work surface provided thereon. A bevel support is pivotable with respect to the base and a cutting blade is supported by the bevel support. A dust chute is adjustably secured to the bevel support and pivots with respect to the base when the bevel support pivots. The dust chute includes mounts that allow lateral adjustment of the dust chute with respect to the bevel support. A laser alignment device is positioned on the dust chute and configured to emit a beam of light toward the work surface. The dust chute includes a receptacle designed and dimensioned to releasably hold the laser alignment device. Because the laser alignment device is retained on the dust chute, adjustment of the dust chute also results in adjustment of a beam of light emitted from the laser alignment device.

Abstract: The invention concerns a raising apparatus for lifting sheets of material in tools, in particular punching and stripping tools, with a first spring element which possesses a first spring rate, and a second spring element which possesses a second spring rate.

Abstract: A flexible stabilization device for connecting at least two bone anchoring devices which are attached to vertebrae of the spinal column includes a flexible rod made of an elastomer material. The rod has a surface in which at least one recess is provided which is generated by separation of a portion of said elastomer material.

Abstract: A method for affixing adhesive films to a main board is provided. The main board includes a main body and a shield. The shield includes a first shield and a second shield. The second shield defines openings. When the second shield is attached to the main body, components of the main body are confined within the openings, respectively. The method includes: first absorbing a single adhesive film to an electrostatic absorbing film. Then, stamping the electrostatic absorbing film and the single adhesive film to form adhesive films that have substantially the same shape and arrangement as the openings. Next, aligning the electrostatic absorbing film with the first shield and affixing the adhesive films to the first shield. Then, removing the electrostatic absorbing film from the first shield. And, assembling the first shield to the second shield.

Abstract: The present invention is premised upon a method of piercing a hole through a plate member by removing at least 10% of the hole offal material prior to piercing the hole. In the case of high strength steel plating (e.g. armor plating), the step of annealing before punching may be included, as well as the step of hardening the steel after the punching operation.

Abstract: A gathering method for a keypad fabrication process, in which a key-top tree is placed into a punching die, the punching die is aligned, a receiving device is disposed under the punching die, an assembly jig is disposed on the receiving device and aligned using an x-y table for gathering a punched-out key-top, a punch disposed above the punching die using another x-y table for allowing the punching die to perform both punching the key-top tree and gathering the punched-out part onto the assembly jig. Each key-top on the key-top tree is punched out and gathered on the assembly jig by repeating the aforementioned steps. Accordingly, the key-tops can be punched out and arranged on the assembly jig with a different pitch from the key-top tree automatically, fast and correctly. A gathering apparatus for a keypad fabrication process is also provided.

Abstract: The invention relates to a die-cut edge system, method and device capable of creating a continuous and congruent decorative design along the edge of a paper product. Furthermore, the invention relates to a die-cut edge system, method and device, wherein a corner punch and edge punch are aligned and correspond with one another so as to produce a continuous and congruent decorative design along the edge of a paper product.

Abstract: A method for fastening two substantially coplanar edges without a weld. The method includes: configuring a dovetail feature on a first edge; configuring a complementary dovetail feature receptacle on a second edge to receive the dovetail feature therein; disposing the dovetail feature within the complementary dovetail receptacle; and swaging an interface defined between the dovetail feature in said first edge and said complementary dovetail feature in the second edge to swage mating edges defining the dovetail feature and the dovetail receptacle at at least six swage contact points.

Abstract: My invention relates broadly to devices for knitting, crocheting and other crafting used to advantage for making numerous forms of fringe and other adornment requiring the use of multiple, identical-length strand materials and has as one of its objectives to provide a simply constructed, reusable, adjustable device. A further objective of this invention is to provide a measuring and cutting device of the character set forth, that is simple in construction, inexpensive to manufacture, and is extremely efficient and versatile in use and service. It has been common practice to use a piece of cardboard for one of its uses, making fringe, however, only one size of fringe or other strand material can be manufactured by that method, making it necessary to have a separate apparatus for each length of strand material desired.

Abstract: A razor head has blade members with straight front cuffing edges which are mutually parallel and lie in a cutting plane. Imaginary median surfaces of the blade members are continuously curved from the cutting plane, from the cutting edges toward the rear edges. The razor has a handle with a pair of fork arms, the distal ends of which are connected to the head at positions adjacent the respective ends of the head. Each fork arm has a groove allowing pivoting of the distal end about a pivot axis parallel to the head axis but which does not pass through the razor head. Each groove is filled with a resiliently deformable material which is deformed when a pivoting force is applied to the razor head during shaving and which restores the razor head to a normal position when the force is removed.

Abstract: A method for forming a variable capacitor including a conductive strip covering the inside of a cavity, and a flexible conductive membrane placed above the cavity, the cavity being formed according to the steps of: forming a recess in the substrate; placing a malleable material in the recess; having a stamp bear against the substrate at the level of the recess to give the upper part of the malleable material a desired shape; hardening the malleable material; and removing the stamp.

Abstract: A punch assembly for punching a plurality of consecutive sheets each having a first edge and a second edge generally opposite the first edge includes a punch and a transport assembly having a feeding path for feeding the first edge of a sheet in a feeding direction relative to the punch for punching thereof, and a removal path different from the feeding path for removing the sheet from the punch in a removal direction generally opposite to the feeding direction relative to the punch such that the second edge becomes a leading edge.

Abstract: A method of cutting a strip of sheet metal, including feeding out a continuous strip of sheet metal in a feeding direction, cutting the strip into a plurality of lengths, including making a wave shaped cut between each length and an adjacent length, wherein each of a forward edge and a following edge of each length include a plurality of waves, and selecting at least one of a radius of each of the plurality of waves and a spacing between adjacent ones of the plurality of waves based on a cutting angle, wherein the cutting angle is oblique with respect to the feeding direction.

Abstract: A method and apparatus for fastening two substantially coplanar edges without a weld is disclosed. The method includes: configuring a dovetail feature on a first edge; configuring a complementary dovetail feature receptacle on a second edge to receive the dovetail feature therein; disposing the dovetail feature within the complementary dovetail receptacle; and swaging an interface defined between the dovetail feature in said first edge and said complementary dovetail feature in the second edge to swage mating edges defining the dovetail feature and the dovetail receptacle at at least six swage contact points. In one embodiment the swaging is with a hollow circle punch.

Abstract: A head stack assembly of a disk drive unit including a head arm assembly (HAA) having a head gimbal assembly, a drive arm to be connected with the head gimbal assembly; wherein the drive arm comprises a securing portion, a connection portion and a spacer connecting the securing portion with the connection portion. In the present invention, at least one undercut is formed on the spacer of the drive arm to strengthen the drive arm. The invention also discloses a method of manufacturing such a head stack assembly.

Abstract: A method of processing metal parts and the like by blanking includes the steps of performing a first blanking step on a semi-finished product in order to produce a blanked semi-finished product, and performing a subsequent processing of the blanked semi-finished product to produce a finished product. The first blanking step is performed leaving an allowance on the blanked semi-finished product, and wherein the subsequent processing includes at least one second blanking step by which the allowance is removed from the blanked semifinished product.

Abstract: A progressive die for shaping a consecutive series of discs from a strip of relatively stiff material, comprising a series of adjacent die stations including a slot cutting station, a plurality of intermediate stations, and a cut off station, the slot cutting station including cutting means for forming at least one laterally extending slot between adjacent discs while leaving at least one narrow deformable bridge connecting the adjacent discs, the intermediate stations including cutting means for shaping the discs, and the cut off station including cutting means for severing the bridge. A strip of relatively stiff material includes a series of consecutive discs formed along the length thereof, at least two adjacent discs having at least one laterally extending slot therebetween and at least one narrow deformable bridge connecting the adjacent discs.

Abstract: The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded product 10 comprising a column part 11, and a fin part 12 projected in the form of flat plate from an outer peripheral surface 11A, 11B, 11C, 11D of the column part to an outer side in a radial direction of the column part and helically continuing in an axis direction of the column part at predetermined intervals along the outer peripheral surface of column part is prepared. The column part 11 of the first molded product is punched out in an axis direction of the column part with retaining the fin part 12 to remove the column part, and the fin part 12 having helical shape left after the removal is coated with an insulating film.

Abstract: An electrical connector having a seamless metal housing and a method for manufacturing the same. The electrical connector includes a plastic base and a metal housing. The housing shields a connection portion of the plastic base and is integrally formed with a top surface and a plurality of circumferential surfaces to define a chamber having an opened bottom end. At least one surface among the circumferential surfaces and the top surface is formed with an opening to expose the connection portion of the plastic base. No seam is formed between any adjacent two surfaces among the top surface and the circumferential surfaces.

Abstract: A method for delivering web-supported articles between dies and punches of a trim press. The method includes providing a treadle having an article detector, while moving the web and the articles, guiding the web and the articles along the web and between a pair of the articles each provided in one of a pair of adjacent rows that extend along a travel path direction, detecting location of an article in the web using the article detector, and in response to detecting the location of the article, controllably moving the web to position the article between a corresponding punch and die of the trim press.

Abstract: A method of fabricating a piezoelectric/electrostrictive device including a driving portion, a movable portion, and a fixing portion for holding the driving portion and the movable portion. The driving portion includes a pair of thin plate portions facing each other, and a film-like piezoelectric/electrostrictive element formed on at least a part of the outer surface of at least one of the thin plate portions. A ceramic green laminate including at least one ceramic green sheet constituting one of the thin plates and at least one ceramic green sheet having at least one hole formed thereon is formed. The ceramic green laminate is sintered to produce a ceramic laminate. A piezoelectric/electrostrictive element is formed by a film formation method on the outer surface of the thin plate portion of the ceramic laminate. The ceramic laminate is then cut with the piezoelectric/electrostrictive element formed thereon.

Abstract: A stator for an automotive alternator is provided with good installation characteristics for stator coils and which can lower noise. The stator includes a stator core in which a plurality of slots are formed at an inner circumference thereof and stator coils which are fitted into the slots. A rotor is provided inside the stator and includes a rotor coil, and a pole core for housing the rotor coil. Two slots are provided for each set of stator coils, each phase and each magnetic pole and the total number of slots is seventy-two or more. The stator core formed by laminating a plurality of sheet-shaped magnetic members. The stator coils are disposed in the slots, and the stator core is rounded such that the stator coils become the inner side thereof and both end surfaces thereof are contacted to connect the stator core in an annular shape.

Abstract: Sheet-metal blanks for rotors or stators of electrical machines are cut from rolled sheet-metal strips with a magnetic preferential direction and layered to form a laminated rotor core or laminated stator core. To compensate largely for a magnetic anisotropy of the laminated rotor core or laminated stator core, the sheet-metal blanks, when they are not centrosymmetrical, are cut out together congruently in a single cutting operation, from rolled sheet-metal strips stacked one above the other and rotated relative to one another by an angle.

Abstract: A method for delivering web-supported articles between dies and punches of a trim press. The method includes providing a treadle having an article detector, while moving the web and the articles, guiding the web and the articles along the web and between a pair of the articles each provided in one of a pair of adjacent rows that extend along a travel path direction, detecting location of an article in the web using the article detector, and in response to detecting the location of the article, controllably moving the web to position the article between a corresponding punch and die of the trim press.

Abstract: An electromagnetically operable valve having an electromagnetic circuit which includes at least one solenoid coil, a core used as internal pole, and an armature, as well as a magnet housing at least partially surrounding the solenoid coil. The magnet housing is produced from a sheet-metal blank with the aid of rolling or bending. The magnet housing has a middle housing area that is adjoined in the axial direction on both sides by attachment areas which have a smaller outside diameter than the housing area. The valve is particularly suitable as a fuel injector for fuel-injection systems of mixture-compressing internal combustion engines with externally supplied ignition.

Abstract: A rotary die cutter for cutting a series of irregular-shaped blanks from a continuous web. The rotary die cutter includes a male die cylinder that has a series of die cavities formed along its outer circumference. Each of the die cavities includes a surrounding cutting edge that defines the shape of the blank to be cut. The male die cylinder is pressed into engagement with either an anvil cylinder or a female die cylinder to form either crush-cutting or shear-cutting nips therebetween. The continuous web is fed into the cutting nip such that the cutting edges of the die cavities contact the web to cut the blanks from the web. A plurality of vacuum ports positioned in the die cavities along the outer circumference of the male die cylinder are connected to a source of vacuum contained in the male die cylinder to remove the die-cut blanks from the web. The die-cut blanks are vacuum-transferred to a stacking unit, while the scrap web is continuously discarded by air-conveying removal.

Abstract: The invention relates to a method for machining platelike workpieces in a striated manner, whereby, in work steps, the material plate is machined by a controlled linear unit in a striated manner and always in the same X-axis direction. The invention also relates to a device for carrying out said method.

Abstract: A die cutting block for forming die cuts from paper and other materials includes a base portion having a recess formed therein having a desired shape formed therein, an insert portion having an outer contour which substantially matches the contour of the recess and a blade interposed between and tightly held between the base portion and the insert portion. The blade extends above the base portion and insert portion to provide an exposed edge for cutting paper and the like into a desired shape.

Abstract: A method for manufacturing includes a machine capable of operating with and without a stock material present and an apparatus responsive to each operation when the stock material is present and unresponsive when the stock material is absent.

Abstract: In a method and apparatus for rotating loose laminations in a loose lamination die, a strip is fed through the die to a rotatable blanking chamber of a blanking station. There, a punch engages with a die ring to punch a lamination free from the strip. The rotatable blanking chamber is biased in an upwardly direction. When the punch is not engaging with the die ring, the rotatable chamber is in an upward position wherein a gap develops between laminations retained at a bottom of the rotatable chamber, and those laminations lying directly below the rotatable chamber. The rotatable chamber can then be rotated without damage to the laminations at the gap because of the presence of the gap. Thereafter, a succeeding lamination can be punched after the rotation has occurred. As the punch engages the strip on top of the die ring, the rotatable chamber is pushed downwardly so that the gap at the bottom of the rotatable chamber disappears.

Abstract: A method for reliable, safe removal of an electrical or electronic component or device mounted on a fragile or brittle circuit board substrate having opposed planar upper and lower surfaces, e.g., for performing testing such as failure analysis, comprises sequential steps of cutting the substrate transversely through its thickness to separate therefrom a segment comprising a first portion including the component or device and a second, adjoining portion; cutting the separated segment longitudinally along a plane parallel to the upper surface, the cutting extending beneath the entirety of the first portion; and cutting the substrate of the separated segment transversely through its thickness to separate the first portion including the component or device from the second portion.

Abstract: A self-aligning multi-tool for use in a punch press having a ram. The multi-tool includes a housing carrying a striker and a magazine bearing a plurality of circumferentially spaced tools and rotatable with respect to the housing so as to bring a single desired tool into alignment with the striker. The housing has a striking surface adapted to be engaged by the ram of a punch press and configured to rotationally lock to the ram when correctly rotationally aligned therewith to prevent the housing from rotating as the magazine is rotated. The housing is provided with at least one alignment pin having a tapered cam surface and positioned such that the ram will contact and cam against the tapered cam surface of the pin as the ram approaches the striking surface if the machine ram and the striking surface are rotationally mis-aligned so as to urge the housing to rotate into correct alignment with the ram to enable rotational locking therebetween.

Abstract: Cast metal parts are created for use in making machinery. When these parts are formed, unwanted material remains in the openings of the parts. This material, called flash, must be removed. In the method of the present invention, the cast parts are placed on a platen of a trim press that has multi-part punches attached thereto that are configured to self-align with the openings in the cast part and operative to evenly remove the flash. The invention also relates to a punch that initially breaks through the flash with a stationary punch that removes a majority of the flash inside the opening of the cast part. Next, a moving or self-centering punch self-aligns to the opening in the cast part and operates to remove the remaining flash. The inventive punch may also include a mounting base for attachment of the multi-part punches to the plate or platen of the press.

Abstract: A novel design and method of manufacturing confetti uses an interior cutout type die-cutting process. The resulting die cut confetti has unique and unusual aerodynamic features creating visually pleasing flight patterns. The predominant descent pattern of this new confetti is a hover action. The confetti rocks slightly back and forth during its descent but primary remains parallel to the ground.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with sets of tooling at multiple stages which forms a batch of cups from a strip of sheet metal with each stroke of the press. The tooling stages are positioned at predetermined stepped elevations and are arranged so that they sequentially blank the sheet metal to form a series of nested and out-of-round or contoured blanks. The tooling stages also sequentially hold the blanks and sequentially draw the blanks into cups. The tooling stages are symmetrically positioned with respect to the press center line, and each tooling set may also include a bottom panel punch surrounded by a pressure sleeve for sequentially forming a preform boss within the bottom wall of each cup.

Abstract: A novel method is provided for forming a clear hole through a composite plate. In the present method, the hole is twice-punched by a punching apparatus. At least two plates can be joined together to form a wall of a trailer. Each composite plate is formed from top and bottom skins having a resilient core sandwiched therebetween. The bottom skin of one plate and the top skin of the adjacent plate each include an integrally formed skin extension which extends past the end of the respective cores and overlaps the respective top or bottom skin on the adjacent plate. To perform the method, the following steps are taken: The composite plates are placed adjacent to each other and the punching apparatus is engaged with the plate to be punched to compress the plate core material. The punching apparatus punches through the plate and skin to form a hole therethrough. The apparatus is then withdrawn from its engagement and the core is allowed to expand into the hole.

Abstract: In the punching of a stack (7) of sheet-like articles, especially labels made from paper or paperboard, with a punching knife (4), a punching ram (3) which can be moved to the punching knife (4) and a counter-pressure plunger (5) which is guided through the punching knife (4), the punching knife (4) and the counter-pressure plunger (5) are arranged on the carriage (10) which can be moved towards and away from the punching ram (3). As a result, a receiving apparatus (26) which can be moved laterally towards and away from the punching area can remove the ready-punched stack (21) and at the same time a new stack (7) of precut sheets can be presented to the punching ram (3).

Abstract: Method for manufacturing aspirator tubes (10) for medical and dental use which are provided with two opposite air apertures (13) adjacent at least one end thereof. The air apertures are made in a tube length which is moving axially and is cut to individual aspirators tubes. The apertures are made and the tube length is cut by means of continuously rotating cutters (17, 18, 22, 23) which are cuttingly engaged with the tube length at predetermined revolutions only while said cutters are brought to idle therebetween, withdrawn from the tube length.

Abstract: A vulcanized sheet S1 having formed therein annular articles P1 is prepared at first, which sheet comprises thick external bridges (16) in a thin annular zone (14) and at regular angular intervals so that the bridges connect an external flash (13) to a body (15) of the sheet. A recess (22) is formed centrally of an inner waste (20) surrounded by each article. Then, a guide lug (34) is inserted in the recess to correctly position the article, before tearing by of a first punch (35) an inner breakable boundary (26) intervening between the article and the inner waste so as to remove the inner waste from the article. Next, a further guide lug (44) is inserted in a space from which the inner waste has been removed, a die having a bore (31a) of a diameter larger than the article supports the sheet, and finally a second punch (45) tears an outer breakable boundary (12) to separate the article from the sheet.

Abstract: A controlled adjustable method for forming and stacking laminations that are used in an electro-magnetic device such as a motor or transformer is disclosed. The method steps provide the incremental forming of a predetermined number of laminations from magnetically conductive material with each lamination having at least one coil winding segment of predetermined incrementally varying width. Each coil winding segment is formed by the movement of variable electrically adjustable mechanical forming elements such as punching or stamping dies or laser devices relative to magnetically conductive material.

Abstract: In a method for making splice indicating holes through photographic paper, a long strip of photographic paper web is conveyed in its longitudinal direction and is slit into a plurality of narrow webs, a tail end of the photographic paper web is spliced to a leading end of a new photographic paper web, and a plurality of splice indicating holes are made through the new photographic paper web at positions, which are spaced a predetermined distance from the splice of the new photographic paper web, the predetermined distance being taken in the longitudinal direction of the new photographic paper web, and which coincide with center parts of narrow webs into which the new photographic paper web will later be slit.

Abstract: So-called "retrofitting" of old style fluorescent lighting fixtures is carried out in a punch and die press provided with a special punch and die assembly having guide blocks positioned laterally of the punch and die for receiving pre-existing notches flanking the unnotched portion of the notched edge margin of a so-called "trougher raceway" strip portion of the old fluorescent lighting feature to be retrofitted, the punch of which assembly has cutting edges configurated for piercing the metal work strip backwardly of the notched edge thereof and at the ends of a longitudinal cut to be made and at the back ends of mutually spaced lateral end cuts to be made and for executing severing stokes along such cutting edges and thereby cutting out and removing a slug of metal exactly conforming in shape and dimension to the pre-existing guide notches.

Abstract: In a method for the plastification of documents punched out of a sheet, with a plastic cover being fixed to a document, at least two first reference markers are made on the cover, the positions of the first reference markers being defined beforehand with respect to the punch-out line of the document. The position of the punch-out line of the unit constituted by the document and the cover being defined beforehand with respect to at least two reference markers, the unit is punched out when the first and second reference markers coincide. Application to the plastification of all printed documents.

Abstract: The capability of heat dissipation from the contact surface of a magnetic switch for a starter motor is improved without increasing the fabrication cost. A punch 28 having a plurality of square projections arranged in two mutually perpendicular directions at the pitch of P is applied to the surface of a plate member 27 to form a first group of punched recesses 29a. The pitch P is twice the length of a side of each punched recess 29a. Then, the punch 28 is shifted with respect to the first group of punched recesses 29 by P/2 in both the vertical and horizontal directions before forming a second group of punched recesses 29b. The punched recesses 29a and 29b define projections 26 in the parts which are not occupied by these recesses generally in the pattern of a checker board.