US3359773A - Scoring of thin sheet metal - Google Patents

Scoring of thin sheet metal Download PDF

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Publication number
US3359773A
US3359773A US436024A US43602465A US3359773A US 3359773 A US3359773 A US 3359773A US 436024 A US436024 A US 436024A US 43602465 A US43602465 A US 43602465A US 3359773 A US3359773 A US 3359773A
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United States
Prior art keywords
scoring
tool
anvil
metal
sheet metal
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US436024A
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English (en)
Inventor
Stuchbery Arthur Leslie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Packaging UK Ltd
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Metal Box PLC
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Filing date
Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/4979—Breaking through weakened portion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0333—Scoring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]
    • Y10T83/8782—Stored energy furnishes cutting force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]
    • Y10T83/8782—Stored energy furnishes cutting force
    • Y10T83/8784—With reset

Definitions

  • ABSTRACT OF THE DISCLOSURE Disclosed herein is a method for scoring thin sheet metal workpieces including bending of the workpieces convexly toward the workpiece penetrating tool in the area to be scored to place the portion of that workpiece area nearest the tool in tension and to place that portion of the area to be scored opposite the workpiece in compression and penetrating the workpiece with the tool.
  • apparatus for scoring such thin sheet metal workpieces including a workpiece penetrating tool and workpiece support.
  • the workpiece penetrating tool and support have formed thereon workpiece bending portions for bending the workpiece toward the penetrating portion of the tool.
  • the tool is actuated via energy storing and releasing apparatus including a compressible spring and latching provision capable of releasing the tool for movement toward the workpiece support under theinfluence of the compressible spring.
  • Tool movement limiting provisions are provided for assuring the proper penetration of the workpiece by the penetrating portion of the tool.
  • This invention relates to the scoring of thin-sheet metal, particularly to the scoring of a container component to facilitate the'easy opening of the container.
  • a method of scoring thin sheet metal by locating the metal on an anvil, locally bending the metal in the region thereof to be scored towards a scoring tool thereby to cause the side of the metal facing the scoring tool to be subjected to a tensile stress and the side engaged by the anvil and immediately opposite the scoring tool to be subjected to a progressive compressive stress while causing the scoring tool to penetrate the metal.
  • the scoring tool is impelled towards the anvil and against the tensioned side of the metal to effect scoring of the metal.
  • apparatus for scoring thin metal comprising an anvil on which metal is locatable for scoring, a reciprocable scoring tool movable towards and away from the anvil, bending elements co-operating with the anvil and scoring tool locally to bend a piece of sheet metal located on the anvil towards the scoring tool thereby to cause the side of the metal facing the scoring tool to be subjected to a tensile stress and the side engaged by the anvil and immediately opposite the scoring tool to be subjected to a progressive compressive stress simultaneously with the scoring of the metal, and actuating means operable to effect reciprocation of the scoring tool.
  • the actuating means includes energy accumulating and releasing means arranged to impel the scoring tool at a high velocity towards the anvil and against the tensioned side of the metal.
  • Stop means may be operable to determine the extent of movement of the scoring tool towards the anvil, and a bending element on the anvil and about which the metal is bent presents a radiused face to the scoring tool, and bending members may be located on opposite sides of the scoring tool for movement therewith to co-operate with the bending element on the anvil to effect said local bending of the metal.
  • the scoring tool is carried by a reciprocable head in a manner permitting axial relative movement between the scoring tool and the head, the energy accumulating and releasing means is a spring located between the scoring tool and the head,
  • FIGURE 1 illustrates the method of effecting scoring of thin sheet metal by the means employed prior to the present invention
  • FIGURE 2 illustrates the method of effecting scoring of thin sheet metal according to the present invention
  • FIGURE 3 illustrates apparatus for carrying into effect the method according to the invention.
  • the scoring tool 1 enters the sheet metal 2, for example a can end, which is located on a flat anvil 3.
  • the scoring force 4 is resisted by compressive stresses 5 while at the same time inducing tensile stresses 6 in the residual part of the metal.
  • the tensile stresses are resisted by the strength of the metal and by the friction forces 7, between the metal 2 and anvil 3, directly beneath the line of scoring force 4.
  • this method of scoring induces a great deal of work hardening and may sometimes result in failure of the metal, in the residual part, in the form of cracks 8.
  • FIGURE 2 illustrates the method of scoring thin sheet metal in accordance with the present invention.
  • the metal for example a can end, is located on an 'anvil and is locally bent, in the region thereof to be scored, towards a scoring tool 11 thereby to cause the side of the metal facing the scoring tool to increase its length and so to be subjected to an induced tensile stress 12, 13, the stress 13 being in a direction substantially at right angles to the scoring force 14.
  • the side of the metal which is engaged by the anvil and which is immediately opposite the scoring tool is subjected to progressive compressive stress 15.
  • friction forces 16 which are induced between the anvil and the metal being scored, work in the same direction as the compressive stress 15.
  • the metal is urged away from the scoring tool simultaneously with the penetration of the tool into the metal, this being effected by impelling the scoring tool at a high velocity towards the anvil and against the tensioned side of the metal.
  • the resistance to the scoring force 14 is thereby greatly reduced and the residual unscored metal does not suffer from excessive work hardening.
  • FIGURE 3 illustrates apparatus for carrying the method of FIGURE 2 into effect and, referring to FIG- URE 3, it will be seen that the metal 9 to be scored, this being a can end as shown in FIGURE 3, is located on the anvil 10 and that the scoring tool 11 is a reciprocable tool movable towards and away from the anvil.
  • the anvil 10 is one of a plurality of anvils movable with a rotatable wheel 17, which wheel is rotated intermittently by driving means, not shown, successively to locate the anvils, each with a can end 9 positioned thereon, in alignment with the scoring tool 11.
  • Actuating means co-operate with the scoring tool and are operable, as described below, to impel the scoring tool at a high velocity towards the anvil and against the tensioned side of the metal.
  • An impact ring 18 is keyed to the stationary shaft 19 about which wheel 17 is rotatable and, as described below, is engaged by stop means 20 provided on a mounting 21 for the anvil.
  • the mounting 21 is slidable axially in a housing 22 carried by wheel 17 and is urged by a spring 23 to the inactive position of the anvil, this being the position thereof shown in FIG- URE 3.
  • the anvil is moved to the active, or raised, position thereof, in timed relation with the movement of the scoring tool, by a lever 24 rockable about .a fixed pivot 25 by link means 26 the operation of which will be described below when describing the mode of operation of the apparatus.
  • the scoring tool 11 is carried by a sleeve 27 slidable lengthwise of a column 28 secured to a moving head 29 which is reciprocable by the crank, not shown, of the crank press to which the apparatus is fitted.
  • the sleeve 27 has a Belleville washer 30 flexibly connected thereto for engagement with a main spring 31 which, when loaded, extends between the washer 30 and an abutment 32 on a stationary bracket 33 supported by a pillar 34.
  • a trigger device is arranged to restrain axial move- 'ment of the scoring tool 11 during movement of the head 29 towards the anvil and to release the scoring tool as the head nears the anvil to permit the main spring 31 to impel the scoring tool towards the anvil.
  • the trigger device comprises a trunnion sleeve 35a to which toggle links 36 are pivoted on trunnions 37.
  • the sleeve 35a is secured to a trigger support member 35 which is slidable lengthwise of the column 28.
  • a trigger spring. 38 extending between the lower end of member 35 and a collar 39 secured to the column 28 urges the member 35 to the upper position thereof as shown in FIGURE 3.
  • Forked trigger arms 40 are pivoted for rocking movement about pivots 41 carried by the bracket 33 and at their upper ends are pivoted at 42 to the toggle links 36.
  • the lower-ends of the trigger arms 40 carry sleeve-engaging means shown as rollers 43 and the upper ends are provided with stepped latch portions 44.
  • Pawls 45 are pivoted at 46 to the press frame 47 and are urged to the active positions thereof by springs 48.
  • Pawl restoring rods 49 are secured to the head 29 for movement therewith, extend through the pawls 45, and have nuts 50 screwed on to the free ends thereof.
  • the link means 26 consists of an upper and a lower part connected for relative axial movement by an override spring 51 surrounding the upper part and contained in a housing 52 secured to the upper end of the lower part.
  • a rocker arm 53 pivoted at 54 to the press frame 47 is pivotally connected at 55 to the upper end of the upper part of link 26.
  • the apparatus is now in the cocked condition and ready for release of the scoring tool 11.
  • the head engages the trigger support member 35 and pushes it beyond the dead centre of the toggle.
  • the side force on the rollers 43 is now able to move the trigger arms 40 and collapse the toggle lock thus permitting mainspring 31 to impel the scoring tool 11 towards the anvil 10.
  • the scoring tool engages the can end the latter is subjected to simultaneous bending and penetration, the bending being effected by the bending element 11a, FIGURE 2, of the scoring tool and the bending element 10a on the anvil, and the penetration by the cutting portion 11b of the scoring tool acting directly against the top of the bending element 10a.
  • the compressive stress exerted by the cutting portion 11b is progressive as the cutting portion 11b penetrate the metal of the can end.
  • the scoring tool sleeve 27 slides freely on the column 28 and separates from the mainspring 31 as the drive in the spring becomes expended.
  • the cutting edge of the scoring tool 11 enters the can end to a depth determined by the dimensions of the anvil 10 and impact ring 18 since the movement of the tool 11 is abruptly halted when the tool rim 56 contacts the lip 57 within the impact ring 18.
  • the head 29 passes its bottom dead centre and begins to rise together with the column 28 the lipped end 58 of which soon engages the scoring tool sleeve 27 and carries the tool 11 with it.
  • the washer 30' soon engages the relaxed mainspring 31 and commences to compress it.
  • the trigger arms 40 are constrained by the pawls 45 so as to admit the mainspring 31 and washer 30 between rollers 43.
  • the trigger spring 38 is compressed but is as yet unable to move the trigger support member 35 due to the pawls 45 locking the trigger arms 40.
  • the nuts 50 again contact the pawls 45. and disengage the pawls from the latch portions 44.
  • the washer 30 is sufiiciently far above the centres of the rollers 43 to permit the rollers 43 to close beneath the washer 30 under the influence of the trigger arms 40 which are moved by the toggle links 36 and trigger spring 38.
  • the toggle passes its dead centre when the links 36 are in positions such that the centres of the pivots 42 are in line with the trunnion pivots 37 but is prevented from proceeding more than a short distance beyond this position, which is sufficient for locking, by the heels 59 on the links 36 closing against each other.
  • the toggle being thus locked.
  • the trigger arms 40 are now ready to accept once more the opening force of the mainspring. now fully compressed, when it is imparted to the rollers 43.
  • the scoring operation is effected independently of the head 29 and that scoring is effected by the kinetic energy of the scoring tool 11 without the press frame taking part in the process, thus if the kinetic energy is sufficiently high the scoring operation will be carried out consistently without reliance on the rigidity of the press frame. It will, however, also be understood that the strength of the mainspring 31 and the working stroke of column 28 must be evaluated according to the kind of metal beingscored and to the scoring specification.
  • the scoring tool has been described as impelled towards the anvil by the mainspring 31. It is to be understood, however, that the scoring tool may be impelled towards the anvil by any other suitable kind of means'for accumulating and releasing energy.
  • such means may consist of appropriately controlled air cylinders, or electro-magnetic devices.
  • a method of scoring thin sheet metal comprising the steps of locating the metal on an anvil, subjecting the side of the metal facing a scoring tool to a tensile stress and subjecting the side engaged by the anvil and immediately opposite the scoring tool to a progressive compressive stress and simultaneously causing the scoring tool to penetrate the metal said steps of subjecting comprising locally bending the metal in the region thereof to be scored towards the scoring tool.
  • Apparatus for scoring thin sheet metal comprising an anvil on which metal is locatable for scoring, a reciprocable scoring tool movable towards and away from the anvil, bending means co-operating with the anvil and scoring tool for bending locally a piece of sheet metal located on the anvil towards the scoring tool, for subjecting the side of the metal facing the scoring tool to be subjected to a tensile stress andfor subjecting the side engaged by the anvil and immediately opposite to the scoring tool to a progressive compressive stress simultaneously with the scoring 'of the metal, and actuating means operable to effect reciprocation of the scoring tool.
  • actuating means includes energy accumulating and releasing means arranged to impel the scoring tool at a high velocity towards the anvil and against the tensioned side of the metal.
  • stop means are provided for determining the extent of movement of the scoring tool towards the anvil, said bending means comprising a bending element on the anvil about which the metal is bent to present a radiused face to the scoring tool, and bending members located on opposite sides of the scoring tool and movable therewith for cooperation with the bending element on the anvil t'o elfect said local bending of the metal.
  • Apparatus according to claim 4 in which the scoring tool is carried by a reciprocable head and is axially movable relative to the head, said energy accumulating means comprising a spring located between the scoring tool and the head, and said actuating means further comprising trigger means for restraining axial movement of the scoring tool during initial movement of the head towards the anvil and for releasing the scoring tool as the head nears the anvil to permit the spring to impel the scoring to'ol towards the anvil.
  • the scoring tool is movable with a scoring tool sleeve slidable on a column movable with and extending lengthwise from said head, said sleeve being constrained by the trigger means against movement with said column during initial movement of the head towards the anvil to maintain the spring in the loaded condition thereof until the sleeve is released by the trigger means, and wherein the column is provided with a lip at the leading end thereof to engage the scoring tool and restore it to the constraint of the trigger means during movement of the head away from the anvil.
  • the trigger means comprises trigger arms mounted on stationary sup ports for pivotal movement about pivots located between the opposite ends of the arms, each of said arms at like ends thereof being provided with sleeve-engaging means for permitting axial movement of said column relative to said sleeve and said arms at the opposite ends thereof being connected with toggle link means for retaining the sleeve-engaging means in cooperating relation with said sleeve and for actuation by said head to release the sleeve-engaging means from the sleeve as the leading end of the column nears the anvil.
  • the trigger means includes for each of said trigger arms pivoted spring-biased pawl means for latching engagement with a latch portion on the arm to retain the sleeve-engaging means provided on the arm in the position thereof in which it is disengaged from said sleeve, and pawlrestoring means movable with said head for effecting disengagement of the pawl means from said latch portion when the scoring tool sleeve has been restored by said column to the position at which the spring is compressed by the sleeve and the sleeve is in position for co-operation with the sleeve-engaging means.
  • said sleeveengaging means comprises a freely rotatable roller mounted on each of said trigger arms.
  • said toggle link means are mounted on a trunnion carried by a trigger support member slidable lengthwise of said column, and said trigger means further comprises a trigger spring extending between the trigger support member and a collar secured to' said column for restoring the sleeve-engaging means into co-operation with said sleeve.
  • said operating means comprises a lever pivoted for movement into and out of engagement with said means, a rocker arm pivoted for rocking movement by said head, and link means connecting the rocking arm with said lever to. effect movement of the lever about the pivot therefor.
  • link means comprises two link elements connected for relative lengthwise movement and over-ride spring means for allowing continued movement of the rocker arm after the link means has rocked said lever to effect engagement of the anvil with the impact ring.
  • the method of scoring thin sheet metal workpieces comprising the steps of providing a workpiece of thin sheet metal, placing the area of the workpiece to be scored in tension on one side thereof, placing the are-a of the workpiece to be scored in progressively increasing compression on the remaining side thereof, providing a metal penetrating tool, penetrating the workpiece with the tool on the one side thereof and terminating penetration prior to movement of the tool through the workpiece.
  • the method of scoring thin sheet metal comprising the steps of providing a portion of sheet metal to be scored, providing a sheet metal scoring tool, convexly bending the thin sheet metal toward the tool in the area to be scored, penetrating the sheet metal with the tool and terminating penetration prior to movement of the tool through the sheet metal.
  • Apparatus for scoring thin sheet metal workpieces comprising a tool, means for convexly bending the thin sheet metal towards the tool in the area to be scored, means for penetrating the sheet metal with the tool and means for terminating penetration prior to movement of the tool through the sheet metal.
  • Apparatus for scoring thin sheet metal comprising sheet metal support means, a scoring tool mounted for movement toward and away from said support means and including a sheet metal penetrating portion, means located on said support means and tool for cooperatively bending the sheet metal convexly towards its penetrating portion in the area to be scored, and means for moving said tool toward said support means and into contact with the sheet metal for the scoring thereof.
  • Apparatus according to claim 19 wherein said means for moving comprises energy storing and releasing means, means for maintaining said energy storing and releasing means in an energy storing condition and trigger means for causing said energy storing and releasing means to release energy in driving relation to said tool for driving said tool into engagement with the sheet metal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US436024A 1964-03-03 1965-03-01 Scoring of thin sheet metal Expired - Lifetime US3359773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8993/64A GB1041421A (en) 1964-03-03 1964-03-03 Improvements in or relating to the scoring of thin sheet metal

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US3359773A true US3359773A (en) 1967-12-26

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US (1) US3359773A (US20030199744A1-20031023-C00003.png)
BE (1) BE660402A (US20030199744A1-20031023-C00003.png)
FR (1) FR1436650A (US20030199744A1-20031023-C00003.png)
GB (1) GB1041421A (US20030199744A1-20031023-C00003.png)
NL (1) NL147055B (US20030199744A1-20031023-C00003.png)
SE (1) SE312313B (US20030199744A1-20031023-C00003.png)

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430328A (en) * 1964-08-19 1969-03-04 Triplex Safety Glass Co Methods and apparatus for treating glass sheets
US3580200A (en) * 1968-07-17 1971-05-25 Reynolds Metals Co Apparatus for and method of forming a sheetlike workpiece
US3687099A (en) * 1969-01-10 1972-08-29 Metal Box Co Ltd Scoring metal container components
US3688718A (en) * 1969-10-23 1972-09-05 Aluminum Co Of America Method and apparatus for scoring metal container ends
US3728980A (en) * 1971-02-10 1973-04-24 Fraze Ermal C Scoring die
US3970023A (en) * 1975-04-25 1976-07-20 Continental Can Company, Inc. Tooling arrangement for end closure scoring
US4080878A (en) * 1977-01-05 1978-03-28 The Brown-Bridge Mills Inc. Apparatus for forming a stripable backing material for pressure-sensitive adhesive carrying substrates
US4195556A (en) * 1977-01-05 1980-04-01 The Brown-Bridge Mills, Inc. Method for forming a strippable backing material for pressure-sensitive adhesive carrying substrates
US4317357A (en) * 1980-06-10 1982-03-02 Jerry Moen Jet orifice reducer
US4348464A (en) * 1978-11-29 1982-09-07 The Continental Group, Inc. Combination score tool and score anvil
EP0067260A1 (en) * 1981-06-08 1982-12-22 Luther Medical Products, Inc. Cannula needle for catheter
US4386925A (en) * 1978-10-11 1983-06-07 Focke & Co. Apparatus for producing a tear line in the multi-layered foil of a cigarette pack
US4386926A (en) * 1981-02-17 1983-06-07 Joel Heller Relatively rigid sheet plastic folding method, apparatus and article
EP0127837A2 (de) * 1983-06-01 1984-12-12 Schmalbach-Lubeca AG Verfahren und Anordnung zum Herstellen von Aufreisslinien in Metallblechen, insbesondere zur Herstellung von Aufreissdeckeln für Dosen oder dgl. Behälter
US4504181A (en) * 1978-11-29 1985-03-12 Continental Can Company, Inc. Method of forming scored metal sheet
US4642086A (en) * 1985-07-29 1987-02-10 Transparent Packaging Corp. Apparatus for forming flexible fold lines in a thermoplastic sheet
US4869969A (en) * 1988-05-03 1989-09-26 Allied Tube & Conduit Corporation Metallic wall having coined knockouts and method of forming
US5271789A (en) * 1990-09-12 1993-12-21 Brother Kogyo Kabushiki Kaisha Tape end processing unit
US5518088A (en) * 1992-02-07 1996-05-21 Brosilow; Jerry L. Shim structure for sound dampening brake squeal noise
US5679205A (en) * 1995-06-26 1997-10-21 The Goodyear Tire & Rubber Company Apparatus for severing and shaping a strip of elastomeric material
US5759145A (en) * 1995-02-02 1998-06-02 Kagawa; Seiji Tearability imparting apparatus
US5966982A (en) * 1998-03-11 1999-10-19 Framatome Connectors Usa, Inc. Dimpling Die set
US6044679A (en) * 1996-04-01 2000-04-04 Meijer; Sjoerd Method for machining metal plate
EP1308226A1 (en) * 2001-11-06 2003-05-07 Impress B.V. Easy opening closure, container provided with such closure, and apparatus for producing such closure
US20050067418A1 (en) * 2003-03-28 2005-03-31 Jfe Steel Corporation Die for forming score, method for making easy open can end, and easy open can end
US6968769B2 (en) * 2002-09-10 2005-11-29 Xynatech, Inc. Die assembly
US20070267423A1 (en) * 2004-09-27 2007-11-22 Jfe Steel Corporation Mold Device, Easy-Open End, Method of Manufacturing Easy-Open End, and Laminated Steel Sheet for Easy-Open End
US20100048372A1 (en) * 2006-11-07 2010-02-25 Yoshino Gypsum Co., Ltd. Scoring device for gypsum board production device
US20120131848A1 (en) * 2009-07-24 2012-05-31 Dr. Reisacher Winzerbedarf Gmbh Vineyard Stake
US20130053976A1 (en) * 2010-05-07 2013-02-28 Jossi Holding Ag Method for Producting an Implant and Implant Having at Least One Break Line
WO2015036365A1 (de) * 2013-09-16 2015-03-19 Abb Ag Verfahren zum prägen und einschneiden von werkstücken und prägewerkzeug
US20150165711A1 (en) * 2004-08-17 2015-06-18 Jonco Die Company, Inc. Folding score and method and apparatus for forming the same
US20160033182A1 (en) * 2013-03-15 2016-02-04 Carrier Corporation Heat exchanger for air-cooled chiller
US10773853B2 (en) 2009-12-31 2020-09-15 Ardagh Mp Group Netherlands B.V. Foil for closing an opening of a container, a container part and a container, and a method and apparatus for making same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH530829A (de) * 1970-02-06 1972-11-30 Rasselstein Ag Verfahren und Werkzeug zur Herstellung einer Prägekerbe in einem Metallblech
US4006700A (en) * 1975-05-05 1977-02-08 Usm Corporation Method for making container closures
DE2816860C2 (de) * 1978-04-18 1983-03-10 Styner & Bienz Ag, Niederwangen, Bern Verfahren und Vorrichtung zur Herstellung eines Aerosoltrichters

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB145706A (en) * 1919-03-20 1921-04-14 Jean Baptiste Naberes Improvements in punches
GB279229A (en) * 1926-09-27 1927-10-27 Richard Johnson & Nephew Ltd Improvements relating to the production of dies for wire drawing
US1671369A (en) * 1926-01-18 1928-05-29 Co Fire Equipment Co Control for fluid containers
US2293721A (en) * 1941-08-11 1942-08-25 Gen Tire & Rubber Co Method of and apparatus for cutting and splicing thick rubber stock and the like
US2602507A (en) * 1946-03-01 1952-07-08 Adams Ida Nichols Tool press and operating means therefor
US2641941A (en) * 1948-06-16 1953-06-16 Edgar C Lundeberg Actuating mechanism for impact machines
US2925005A (en) * 1958-01-10 1960-02-16 Ty Sa Man Machine Company Work holder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB145706A (en) * 1919-03-20 1921-04-14 Jean Baptiste Naberes Improvements in punches
US1671369A (en) * 1926-01-18 1928-05-29 Co Fire Equipment Co Control for fluid containers
GB279229A (en) * 1926-09-27 1927-10-27 Richard Johnson & Nephew Ltd Improvements relating to the production of dies for wire drawing
US2293721A (en) * 1941-08-11 1942-08-25 Gen Tire & Rubber Co Method of and apparatus for cutting and splicing thick rubber stock and the like
US2602507A (en) * 1946-03-01 1952-07-08 Adams Ida Nichols Tool press and operating means therefor
US2641941A (en) * 1948-06-16 1953-06-16 Edgar C Lundeberg Actuating mechanism for impact machines
US2925005A (en) * 1958-01-10 1960-02-16 Ty Sa Man Machine Company Work holder

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430328A (en) * 1964-08-19 1969-03-04 Triplex Safety Glass Co Methods and apparatus for treating glass sheets
US3580200A (en) * 1968-07-17 1971-05-25 Reynolds Metals Co Apparatus for and method of forming a sheetlike workpiece
US3687099A (en) * 1969-01-10 1972-08-29 Metal Box Co Ltd Scoring metal container components
US3688718A (en) * 1969-10-23 1972-09-05 Aluminum Co Of America Method and apparatus for scoring metal container ends
US3728980A (en) * 1971-02-10 1973-04-24 Fraze Ermal C Scoring die
US3970023A (en) * 1975-04-25 1976-07-20 Continental Can Company, Inc. Tooling arrangement for end closure scoring
US4080878A (en) * 1977-01-05 1978-03-28 The Brown-Bridge Mills Inc. Apparatus for forming a stripable backing material for pressure-sensitive adhesive carrying substrates
US4195556A (en) * 1977-01-05 1980-04-01 The Brown-Bridge Mills, Inc. Method for forming a strippable backing material for pressure-sensitive adhesive carrying substrates
US4386925A (en) * 1978-10-11 1983-06-07 Focke & Co. Apparatus for producing a tear line in the multi-layered foil of a cigarette pack
US4348464A (en) * 1978-11-29 1982-09-07 The Continental Group, Inc. Combination score tool and score anvil
US4504181A (en) * 1978-11-29 1985-03-12 Continental Can Company, Inc. Method of forming scored metal sheet
US4317357A (en) * 1980-06-10 1982-03-02 Jerry Moen Jet orifice reducer
US4386926A (en) * 1981-02-17 1983-06-07 Joel Heller Relatively rigid sheet plastic folding method, apparatus and article
EP0067260A1 (en) * 1981-06-08 1982-12-22 Luther Medical Products, Inc. Cannula needle for catheter
EP0127837A2 (de) * 1983-06-01 1984-12-12 Schmalbach-Lubeca AG Verfahren und Anordnung zum Herstellen von Aufreisslinien in Metallblechen, insbesondere zur Herstellung von Aufreissdeckeln für Dosen oder dgl. Behälter
EP0127837A3 (en) * 1983-06-01 1985-05-29 Schmalbach-Lubeca Gmbh Method and arrangement for the production of scoring lines in sheet metal, particularly for the production of tear-off tops of cans or the like containers
US4642086A (en) * 1985-07-29 1987-02-10 Transparent Packaging Corp. Apparatus for forming flexible fold lines in a thermoplastic sheet
US4869969A (en) * 1988-05-03 1989-09-26 Allied Tube & Conduit Corporation Metallic wall having coined knockouts and method of forming
WO1989011004A1 (en) * 1988-05-03 1989-11-16 Allied Tube & Conduit Corporation Metallic wall having coined knockouts and method of forming
US5271789A (en) * 1990-09-12 1993-12-21 Brother Kogyo Kabushiki Kaisha Tape end processing unit
US5518088A (en) * 1992-02-07 1996-05-21 Brosilow; Jerry L. Shim structure for sound dampening brake squeal noise
US5759145A (en) * 1995-02-02 1998-06-02 Kagawa; Seiji Tearability imparting apparatus
US5679205A (en) * 1995-06-26 1997-10-21 The Goodyear Tire & Rubber Company Apparatus for severing and shaping a strip of elastomeric material
US6044679A (en) * 1996-04-01 2000-04-04 Meijer; Sjoerd Method for machining metal plate
US5966982A (en) * 1998-03-11 1999-10-19 Framatome Connectors Usa, Inc. Dimpling Die set
WO2003039785A1 (en) * 2001-11-06 2003-05-15 Impress B.V. Easy opening closure, container provided with such closure, and apparatus for producing such closure
EP1308226A1 (en) * 2001-11-06 2003-05-07 Impress B.V. Easy opening closure, container provided with such closure, and apparatus for producing such closure
US20050082291A1 (en) * 2001-11-06 2005-04-21 Ad Emmerzaal Easy opening closure, container provided with such closure, and apparatus for producing such closure
US6968769B2 (en) * 2002-09-10 2005-11-29 Xynatech, Inc. Die assembly
US7789261B2 (en) * 2003-03-28 2010-09-07 Jfe Steel Corporation Easy open can end with score
US20050067418A1 (en) * 2003-03-28 2005-03-31 Jfe Steel Corporation Die for forming score, method for making easy open can end, and easy open can end
US9895857B2 (en) 2004-08-17 2018-02-20 Jonco Die Company, Inc. Folding score and method and apparatus for forming the same
US11697262B2 (en) 2004-08-17 2023-07-11 Jonco Die Company, Inc. Scoring rule for forming a folding score on a sheet material
US10022933B2 (en) * 2004-08-17 2018-07-17 Jonco Die Company, Inc. Folding score and method and apparatus for forming the same
US20150165711A1 (en) * 2004-08-17 2015-06-18 Jonco Die Company, Inc. Folding score and method and apparatus for forming the same
US20070267423A1 (en) * 2004-09-27 2007-11-22 Jfe Steel Corporation Mold Device, Easy-Open End, Method of Manufacturing Easy-Open End, and Laminated Steel Sheet for Easy-Open End
US7871230B2 (en) * 2004-09-27 2011-01-18 Jfe Steel Corporation Mold device, easy-open end, method of manufacturing easy-open end, and laminated steel sheet for easy-open end
US20100048372A1 (en) * 2006-11-07 2010-02-25 Yoshino Gypsum Co., Ltd. Scoring device for gypsum board production device
US9138906B2 (en) * 2006-11-07 2015-09-22 Yoshino Gypsum Co., Ltd. Scoring device for gypsum board production device
US20120131848A1 (en) * 2009-07-24 2012-05-31 Dr. Reisacher Winzerbedarf Gmbh Vineyard Stake
US10773853B2 (en) 2009-12-31 2020-09-15 Ardagh Mp Group Netherlands B.V. Foil for closing an opening of a container, a container part and a container, and a method and apparatus for making same
US9173741B2 (en) * 2010-05-07 2015-11-03 Jossi Holding Ag Method for producing an implant having at least one break line
US20130053976A1 (en) * 2010-05-07 2013-02-28 Jossi Holding Ag Method for Producting an Implant and Implant Having at Least One Break Line
US20160033182A1 (en) * 2013-03-15 2016-02-04 Carrier Corporation Heat exchanger for air-cooled chiller
US10508862B2 (en) * 2013-03-15 2019-12-17 Carrier Corporation Heat exchanger for air-cooled chiller
WO2015036365A1 (de) * 2013-09-16 2015-03-19 Abb Ag Verfahren zum prägen und einschneiden von werkstücken und prägewerkzeug

Also Published As

Publication number Publication date
FR1436650A (fr) 1966-04-29
NL6502719A (US20030199744A1-20031023-C00003.png) 1965-09-06
NL147055B (nl) 1975-09-15
SE312313B (US20030199744A1-20031023-C00003.png) 1969-07-14
GB1041421A (en) 1966-09-07
BE660402A (US20030199744A1-20031023-C00003.png) 1965-09-01

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