US3779123A - Knife holder and knife therefor - Google Patents

Knife holder and knife therefor Download PDF

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Publication number
US3779123A
US3779123A US00297897A US3779123DA US3779123A US 3779123 A US3779123 A US 3779123A US 00297897 A US00297897 A US 00297897A US 3779123D A US3779123D A US 3779123DA US 3779123 A US3779123 A US 3779123A
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United States
Prior art keywords
knife
channel
holder
angle
back wall
Prior art date
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
Application number
US00297897A
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English (en)
Inventor
G Chafee
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.)
Cumberland Engineering Corp
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Cumberland Engineering Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cumberland Engineering Corp filed Critical Cumberland Engineering Corp
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Publication of US3779123A publication Critical patent/US3779123A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4847—With cooperating stationary tool
    • 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
    • Y10T83/485—Cutter with timed stroke relative to moving work
    • Y10T83/494—Uniform periodic tool actuation
    • Y10T83/501—With plural tools on a single tool support
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9493—Stationary cutter

Definitions

  • ABSTRACT A knife holder and knife therefor to be used on a ma chine for dicing or cutting plastics, the knife holder being an elongated body having a channel therein, the channel being shaped to hold an elongated insertable knife blade against the front wall of the channel, and an elongated wedge mounted between the knife and the back wall of the channel to clamp the knife securely in' the knife holder.
  • the walls of the channel are divergent from each other. The cooperation between the knife, wedge, and front and back walls of the channel is such that wedge-fastening screws or bolts have reduced forces acting on them.
  • means are also provided whereby regound or replacement knives may be fitted into the knife holder with a minimum of adjustment necessary in respect to the fly knives of the machine.
  • a further difficulty with prior art devices is that when an assembly of a knife and holder is first made, the knife is generally inserted into the holder, and then the knife and the holder are ground together so that the dimensions necessary for use in the machine are accurately fixed. Thereafter, when the knife wears and needs to be re-ground, or a new knife is to be substituted for the worn one, it is necessary either to regrind the knife and holder, or to'make extensive adjustments, both of which mean down-time for the machine, that is, time when the machine is not doing productive work. Such down-time can be expensive to the user of the machine.
  • one object of this invention is to provide a knife holder and a knife therefor, in which, when the knife is inserted in the machine, calibration of the knife with respect to the holder and other parts of the machine is automatic and accurate with a bare mini mum of adjustment necessary.
  • a second object of the invention is the provision of a knife holder and knife therefor characterized in that when a knife is to be resharpened, the width of the knife is so adjusted that when the user of the knife reinserts it into its holder on the machine, the position of the knife with respect to other parts will, as aforesaid, be positioned with only a bare minimum of adjustment necessary.
  • Yet another object in the invention is the provision of a knife'holder and knife therefor of either of the kinds above, in "which the forces needed to be exerted by the bolts or fastening means which hold the wedge (and thus the knife) in the holder, are minimized by the shape of the holder and wedge.
  • the invention comprises the elements and combinations of elements, features of construction, and arrangements of parts which will be exemplified in the structures hereinafter described, and the scope of the application of which will be indicated in the appended claims.
  • FIG. 1 illustrates schematically a typical plastic dicing machine, but in which the knife holder and knife combined therewith of this invention are shown mounted in position to cooperate with the rotary fly knives of the machine;
  • FIG. 2 is an enlarged sectional view of a portion of the knife and its holder of the FIG. 1 embodimentj'
  • FIG. 3 is an end elevation of the holder (without knife and wedge) of FIG. 2;
  • FIG. 4 is an enlarged cross-section taken in the direction of sight lines 4-4 on FIG. 2;
  • FIG. 5 is an end view of the holder and knife of FIGS. 1 and 2, given to illustrate certain angular relationships of surfaces within the holder, and dimensions of certain portions of the holder and the knife fastened therein;
  • FIG. 6 is a sectional view taken in the direction of sight lines 6--6 on FIG. 2;
  • FIG. 7 is an end view of a second embodiment of the invention, the view illustrating another knife to be used in combination with the holder of FIG. 2.
  • FIG. 1 there is illustrated one embodiment of the invention shown in its operative relationship with a typical set of rotary knives of a standard dicing machine such as that manufactured by Cumberland Engineering Company Inc. of South Attleboro, Mass, and illustrated in their Bulletin No. 640.
  • the dicing machine has a rotor 2 having mounted thereon the plurality of toothed dicing knives 4, the rotor being mounted on a shaft, a section 6 of which is shown. (The rotor is illustrated schematically since it is not part of this invention.)
  • Cooperating with the rotary knives 4 is a bed knife assembly mounted on a bed 8 of which only a portion is shown, the assembly of the knife holder 10, knife 12 and wedge 14 which comprise this invention.
  • FIG. 2 there is illustrated (in enlarged detail as compared to FIG. 1), a portion of the bed 8, and a portion of the knife holder 10, its knife 12, and wedge 14 which cooperate with the holder 10 to clamp the knife 12 in its desired position.
  • the wedge 14 is provided with the'counter bores 16 and suitable holes 19 through 'which pass the bolts or machine screws 18 which draw the" wedge 14 down into its locking position, the bolts 18 threading into suitable holes in the holder 10.
  • the holder 10 is fastened to bed 8 by means of bolts 20 in conventional manner, prior to the insertion of the knife 12 and the wedge 14 into the holder.
  • the holder 10 is provided with a channel 22 having a bottom which has a portion 24 approximately parallel to the top surface 26 of the holder, and a remaining portion 28 which diverges downwardly and away from the portion 24 and toward the front surface 30 of the holder.
  • the channel is provided with a back wall 32 and a front wall 34 as shown.
  • thewall 32 makes an acute angle with the plane of bottom portion 24 of the channel and is preferably at a 30 angle to the vertical, that is, a 60 angle to the bottom 24.
  • the wall 34 makes an obtuse angle with the plane of the bottom portion 24 and is preferably at an angle of approximately 135 to the bottom 24, that is, an angle of 45 to the vertical.
  • the walls 32 and 34 diverge from'each other, and the angular diversion is approximately 15. While this is the preferred relationship, other angles may be used, and the angles chosen will affect the clamping action of the wedge 14.
  • the clamping force exerted by the wedge against the inserted knife will be greater, but it will be more difficult to remove both the wedge when it is desired to remove the knife. correspondingly, if the divergence is made greater than then it will be found that while it is easier to move the wedge, nevertheless the wed'ging action is not as great and therefore the wedging screws 18 will have to exert a greater force.
  • Knife 12 extends the length of the holder 10 itself.
  • the knife has parallel faces 38 and 40, and when the knife is positioned in the holder, face 38 rests against wall 34. Therefore, the knife itself assumes the angular tilt of the wall 34.
  • the other face 40 is exposed to be engaged by the wedge 14.
  • the latter is provided with sloping surfaces which match the angles of the walls 32 and the wall 34.
  • an initial knife is made greater in width than the distance of surface 28 from the top surface 26 of the holder, and the wedge 18 is then inserted and tightened down. Thereafter, the top surface 42 of the knife is ground down to be level with the top surface 26 of the holder, and by suitable forming means teeth 44 are cut in both the forward surface 30 of the holder and the upwardly forward edge portion 46 of the knife. As desired, cutting clearance is provided as to the combined forward walls of the knife and the holder.
  • Suitable threaded holes 51 are provided in the wedge 14, in order to assist in lifting the wedge from the holder when it is desired to change a knife. Threaded rods are temporarily threaded into these holes to act as handles to lift the wedge.
  • clearance holes 19 for the bolts 18 are made somewhat larger than usual. As indicated above, the forces required to be exerted by the screws 18 in this invention are less than is found in prior art devices, and laterally directed forces against the wedge will be resisted by the wall 32. Therefore, the bolts 18 do not and should not be subject to such forces. Consequently, the clearance holes are made larger than usual.
  • knife holder 10 is shown and described as an element separate from bed 8, nevertheless, the bed 8 itself may be formed with the proper channel and wedge to receive a knife as described above.
  • knives used in such machines wear out and either need to be reground, or new knives need to be inserted to replace the worn out ones.
  • the knife material is relatively inexpensive (such as, for example, types D2, A7, A8 and other tool steels)
  • the knives are made of tungsten carbide or similar material, the knives are relatively expensive, and they will be returned to the knife manufacturer for regrinding.
  • This invention provides a way of treating a knife that has been reground (or sizing a new knife) so that when such a knife is fitted into the holder, it will come into place in respect to the rotary knives 4 exactly as was the original knife 12 when the latter was new. The following description will first apply to the case where a carbide knife is to be reground and then returned to the user for insertion in the machine.
  • Such a carbide knife 52 isshown in FIG. 7.
  • a carbide knife 52 isshown in FIG. 7.
  • a layer 54 of additional metal illustrated by dotted lines in FIG. 7
  • this layer is then cut off in a predimensioned jig to the level indicated by numeral 56, so that the span from the. point 58 of the knife and the level so prepared is equal to the dimension A.
  • dimension A is the dimension that was originally established between the points 58 of the initial knife and its bottom, when the first knife was placed in this holder and ground.
  • an elongated knife holder and a knife therefor for a cutting machine having rotary cutters with which the knife is adapted to cooperate the holder having a top surface and a front surface and being provided with a channel therein to receive the knife; the channel having a bottom surface, a front wall and a back wall contiguous with said bottom surface, the front wall and the back wall being inclined away from each other at a predetermined angle, the front wall being at an obtuse angle to the planeof the bottom surface, and the back wall being at an acute angle to the plane of the bottom surface; a first portion of the bottom surface being approximately parallel to the top surface; a second portion of the bottom surface lying at an angle to the first portion of the bottom surface and sloping downwardly and toward the front surface of the holder; a knife lying in said channel with one side thereof against the front wall thereof, the other side of the knife facing toward the back wall, and the bottom surface of the knife seated against the second portion of the bottom surface of the channel; and a wedge
  • the knife comprises a body and a layer of additional spacer material of predetermined thickness attached to the bottom surface of the body, the total width of the knife including the width of the knife per se and said predetermined thickness.
  • An elongated knife holder for a knife having a top surface and a front surface and being provided with a channel therein to receive a knife longitudinally; the channel having a bottom surface, a front wall and a back wall contiguous with said bottom surface, the front wall and the back wall being inclined away from each other at a predetermined angle, the
  • front wall being at an obtuse angle to the plane of the bottom surface, and the back wall being at an acute angle to the plane of the bottom surface; a first portion of the bottom surface being approximately parallel to the top surface; a second portion of the bottom surface lying at an angle to the first portion of the bottom surface and sloping downwardly toward said front surface; and a wedge adapted to be removably and adjustably fastened into the channel by fastening means and adapted to engage said back wall and one side of the knife when the latter is in the channel thereby to force the knife against the front wall of the channel.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Details Of Cutting Devices (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US00297897A 1972-10-16 1972-10-16 Knife holder and knife therefor Expired - Lifetime US3779123A (en)

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US29789772A 1972-10-16 1972-10-16

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US (1) US3779123A (cs)
JP (1) JPS4986938A (cs)
BE (1) BE806006A (cs)
CA (1) CA989299A (cs)
DE (1) DE2349697A1 (cs)
FR (1) FR2203308A5 (cs)
GB (1) GB1403825A (cs)

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US3937377A (en) * 1974-10-11 1976-02-10 American/Durein Company Chopper for margins of multi-folded paper
US4090674A (en) * 1977-01-21 1978-05-23 Dow Badische Canada Limited Fixed cutting element
US4155318A (en) * 1977-06-02 1979-05-22 Yoshio Yamamoto Looper for tufting machines
US4261523A (en) * 1979-08-02 1981-04-14 Wanskuck Company Granulator
US4301701A (en) * 1979-02-08 1981-11-24 Winkler & Dunnebier Maschinenfabrik Und Eisengiesserei Gmbh & Co. Kg Rotary punch having a helically clamped abutment
WO1981003284A1 (en) * 1980-05-23 1981-11-26 N Midgley Hand grip
US4355766A (en) * 1977-04-20 1982-10-26 Wigand G Device for the destruction of microfilm and similar data carriers
US4422358A (en) * 1981-04-06 1983-12-27 The Standard Register Company Apparatus for cutting a continuous narrow strip into short sections
US4514165A (en) * 1982-07-22 1985-04-30 Bussey Harry Jun Apparatus for making billowed filling elements for packaging
US5445054A (en) * 1993-09-21 1995-08-29 R. J. Reynolds Tobacco Company Sheet cutting apparatus and method
US5454523A (en) * 1993-02-12 1995-10-03 Yazaki Corporation Elongate object cutting apparatus
EP0744367A3 (de) * 1995-05-26 1998-05-27 Voith Sulzer Papiermaschinen Gesellschaft mbH Vorrichtung zum Erzeugen einer Perforationsspur in einer laufenden Bahn, z.B. Papierbahn
US5829700A (en) * 1995-09-01 1998-11-03 Pianca; Luciano Contrast cutter, particularly for forage shredding machines
US5893314A (en) * 1996-04-10 1999-04-13 Western Printing Machinery Company Knife assembly for rotary cutting system
WO1999025523A1 (en) * 1997-11-17 1999-05-27 Urschel Laboratories Incorporated Knife and cutting wheel for a food product slicing apparatus
FR2782465A1 (fr) * 1998-08-20 2000-02-25 Stephane Badot Couteau pour un porte-couteaux d'un dispositif de granulation de matieres plastiques, ainsi que porte-couteaux et dispositif de granulation comportant un tel couteau
US6032884A (en) * 1998-02-26 2000-03-07 Ahlstrom Services Inc. Replaceable shear edge for a star-type feeder
WO2000071308A1 (en) * 1999-05-26 2000-11-30 Sds Usa, Inc. A rotary die board and method for manufacturing same
US20040198207A1 (en) * 2000-08-03 2004-10-07 Joachim Schill Blade mounting device
US20050035234A1 (en) * 2000-02-25 2005-02-17 Vermeer Manufacturing Company Rotary grinder apparatus and method
US20050034581A1 (en) * 2003-08-12 2005-02-17 Eugenio Bortone Method and apparatus for cutting a curly puff extrudate
US20050081696A1 (en) * 2003-10-20 2005-04-21 Western Printing Machinery Company Knife assembly for rotary cutting system
US20060075865A1 (en) * 2004-10-07 2006-04-13 Floding Daniel L Film cutter
WO2006062547A1 (en) 2004-12-07 2006-06-15 Columbus Mckinnon Corporation Tire size reduction/wire separation system
EP1719420A1 (de) * 2005-05-04 2006-11-08 Hauni Maschinenbau AG Gegenlage für ein oder jedes Trennelement eines Trennmittels sowie Vorrichtung zum Trennen von rauchbarem Material, wie z.B. Tabak, Tabakrippen, Tabakfolie und/oder Nelken von einem verdichteten Kuchen
US20090121058A1 (en) * 2006-04-25 2009-05-14 Johann Doppstadt Comminution device
US20100101470A1 (en) * 2008-10-29 2010-04-29 Groz-Beckert Kg Tool for the manufacture of flat textiles
US20100270410A1 (en) * 2009-04-27 2010-10-28 SSI Shredding Sytems, Inc. Material Shredder including reverse-facing, pass-by-interlocking, rotor-cutter/bed-knife cutting edges
US20100282888A1 (en) * 2009-05-11 2010-11-11 Hartmut Pallmann Device for the workup of input material with a rotor-stator system
CN102431056A (zh) * 2010-07-23 2012-05-02 P·皮埃雷 切割机中的或涉及切割机的改进
US20140366702A1 (en) * 2013-06-12 2014-12-18 The Procter & Gamble Company Perforating apparatus for manufacturing a nonlinear line of weakness
US20140366695A1 (en) * 2013-06-12 2014-12-18 The Procter & Gamble Company Method of perforating a nonlinear line of weakness
US20140373501A1 (en) * 2013-06-21 2014-12-25 Deere & Company Crop processing and/or conveying element for a forage chopper
US20150013297A1 (en) * 2013-06-21 2015-01-15 Joshua D. Bacon Apparatus for supporting and or directing crop in a harvesting machine
USD791205S1 (en) * 2015-04-06 2017-07-04 Zenith Cutter, Inc. Serrated male slot knife
USD791206S1 (en) * 2015-07-31 2017-07-04 Zenith Cutter, Inc. Serrated male slot knife
US9894833B2 (en) * 2015-02-24 2018-02-20 Gebrueder Busatis Gesellschaft M.B.H. Cutter bar
WO2018099517A1 (de) * 2016-11-30 2018-06-07 TKM GmbH Mehrteiliges langmesser
US10889459B2 (en) 2015-03-17 2021-01-12 The Procter & Gamble Company Method for perforating a nonlinear line of weakness
US10919168B2 (en) 2015-03-17 2021-02-16 The Procter & Gamble Company Apparatus for perforating a web material
US10946545B2 (en) 2013-06-12 2021-03-16 The Procter & Gamble Company Nonlinear line of weakness formed by a perforating apparatus
US10947671B2 (en) 2017-09-11 2021-03-16 The Procter & Gamble Company Sanitary tissue product with a shaped line of weakness
US10960566B2 (en) 2015-03-17 2021-03-30 The Procter & Gamble Company Apparatus for perforating a nonlinear line of weakness
US11806890B2 (en) 2017-09-11 2023-11-07 The Procter & Gamble Company Perforating apparatus and method for manufacturing a shaped line of weakness
US11806889B2 (en) 2017-09-11 2023-11-07 The Procter & Gamble Company Perforating apparatus and method for manufacturing a shaped line of weakness
CN119795438A (zh) * 2025-03-12 2025-04-11 埃维恩(上海)机械有限公司 塑料破碎装置用刀具固定机构

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DE19505636A1 (de) * 1995-02-18 1996-08-22 Reinhold Zahn Messerbalken
DE19547906C1 (de) * 1995-12-21 1997-03-13 Continental Ag Vorrichtung zum Schneiden von Kautschukmaterial
GB2440393A (en) * 2006-07-24 2008-01-30 Jonathan Cartwright A clamping system for detachably attaching individual spiral blades from a conventional cylinder mower.
CN115194196A (zh) * 2022-08-19 2022-10-18 浙江希恩希拓斯科技有限公司 一种阀门碟片加工专用刀具

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US3491636A (en) * 1968-03-15 1970-01-27 Mcfall Co Carey Apparatus for cutting strip material
US3709077A (en) * 1971-03-01 1973-01-09 Bretting C Mfg Co Inc Cut-off device

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937377A (en) * 1974-10-11 1976-02-10 American/Durein Company Chopper for margins of multi-folded paper
US4090674A (en) * 1977-01-21 1978-05-23 Dow Badische Canada Limited Fixed cutting element
US4355766A (en) * 1977-04-20 1982-10-26 Wigand G Device for the destruction of microfilm and similar data carriers
US4155318A (en) * 1977-06-02 1979-05-22 Yoshio Yamamoto Looper for tufting machines
US4301701A (en) * 1979-02-08 1981-11-24 Winkler & Dunnebier Maschinenfabrik Und Eisengiesserei Gmbh & Co. Kg Rotary punch having a helically clamped abutment
US4261523A (en) * 1979-08-02 1981-04-14 Wanskuck Company Granulator
WO1981003284A1 (en) * 1980-05-23 1981-11-26 N Midgley Hand grip
US4476742A (en) * 1980-05-23 1984-10-16 Midgley Noel H Hand grip
US4422358A (en) * 1981-04-06 1983-12-27 The Standard Register Company Apparatus for cutting a continuous narrow strip into short sections
US4514165A (en) * 1982-07-22 1985-04-30 Bussey Harry Jun Apparatus for making billowed filling elements for packaging
US5454523A (en) * 1993-02-12 1995-10-03 Yazaki Corporation Elongate object cutting apparatus
US5445054A (en) * 1993-09-21 1995-08-29 R. J. Reynolds Tobacco Company Sheet cutting apparatus and method
EP0744367A3 (de) * 1995-05-26 1998-05-27 Voith Sulzer Papiermaschinen Gesellschaft mbH Vorrichtung zum Erzeugen einer Perforationsspur in einer laufenden Bahn, z.B. Papierbahn
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Also Published As

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DE2349697A1 (de) 1974-04-18
BE806006A (fr) 1974-04-12
GB1403825A (en) 1975-08-28
CA989299A (en) 1976-05-18
FR2203308A5 (cs) 1974-05-10
JPS4986938A (cs) 1974-08-20

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