US3921481A - Method and apparatus for noise suppression - Google Patents

Method and apparatus for noise suppression Download PDF

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Publication number
US3921481A
US3921481A US46928774A US3921481A US 3921481 A US3921481 A US 3921481A US 46928774 A US46928774 A US 46928774A US 3921481 A US3921481 A US 3921481A
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Prior art keywords
set forth
movable
pressure
cutting edges
movable means
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English (en)
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William Fleetwood
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Leesona Corp
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Leesona Corp
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Priority claimed from GB3292373A external-priority patent/GB1482912A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/148—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers specially adapted for disintegrating plastics, e.g. cinematographic films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/186—Axially elongated knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B23Q11/0096—Safety devices protecting the operator, e.g. against accident or noise protecting against noise
    • 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
    • B26D7/22—Safety devices specially adapted for cutting machines
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material
    • 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
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0538—Repetitive transverse severing from leading edge of work
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/21—Out of contact with a rotary tool
    • Y10T83/2105—Mover mounted on rotary tool
    • Y10T83/2107—For radial movement of product
    • Y10T83/2109—Resiliently mounted
    • 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
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
    • 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
    • Y10T83/97—Miscellaneous

Definitions

  • the cheeks are located 7,1881 83/117 in knife boxes and are compressed by the web being 2 4503l2 9/1948, 222 2 "83/117 cut and then expand after the out has been completed 1 937 519 12/1933 iamatsailililllllil'.1111111115371 17x stripping the web from the cutting blade I 3,552,244 1/1971 Smith ..83/116X 3 Claims, 6 Drawing Figures U.S. Patent Nov. 25, 1975 SheetlofZ 3,921,481
  • Another object of the present invention is to provide a printing press web severing device which is substantially quieter than the prior art printing press web severing device that utilized cheek woods.
  • Still another object of the present invention is to provide a printing press web severing device which has a long operating life and increases blade life.
  • Still another object of the present invention is to provide a printing press having a web severing device that can sever sheets of paper from a web of paper and strip the severed sheets of paper from the cutting blade.
  • a printing press which includes a folding cylinder and mating cutting cylinder.
  • the cutting cylinder includes a female opening in which a knife box is located.
  • Said knife box is construed from two pieces which are mirror images of each other.
  • the first piece is bolted to the second piece with a cutting knife being gripped between said pieces and extending outwardly therefrom.
  • a first cheek space is located between said cutting knife and said first piece and a second cheek space is located between said cutting knife and said second piece.
  • Said first piece includes an overhanging portion as does said second piece.
  • a first cheek made of an elastomer material having a durometer hardness of approximately 65 is provided.
  • the first cheek is L-shaped and includes a base which is substantially rectangular and an extending vertical portion.
  • the overhanging portion of the first piece overlays and contacts a portion of the base of said first check.
  • the extension of said first cheek extends past the overhang of said first piece and is adjacent but spaced from, in an inward direction, the tip of the cutting knife blade.
  • a second cheek, identical to said first check, is provided and is located in the second space.
  • Said first and second cheeks flank said cutting knife and are in contact therewith.
  • the folding cylinder and cutting cylinder are rotated in unison.
  • a web of paper is passed between said folding cylinder and cutting cylinder.
  • the web of paper is forced into the cutting knife which cuts the web.
  • the paper compresses the extension of said first and second cheeks and the bases of said first and second cheeks.
  • the cutting knife is no longer pointed toward the center of the folding cylinder 'and the inherent bias of the first and second cheeks causes said first and second cheeks to move outwardly stripping the sheet of paper from the cutting knife.
  • FIG. 3 is an enlarged sectional view taken substantially along the line 3-3 of FIG. 2;
  • FIG. 4 is a sectional view of a folding cylinder, cutting cylinder, cheek arrangement and a portion of a web of paper according to a second embodiment of the present invention
  • FIG. 5 is a sectional view of a folding cylinder, cutting cylinder, cheek arrangement and a portion of a web of paper according to a third embodiment of the present invention.
  • FIG. 6 is a sectional view of a fourth embodiment of the invention.
  • FIGS. 1, 2 and 3 an embodiment 10 ofthe present invention is shown and includes a folding cylinder 12 and a cutting cylinder 1.4.
  • Each of said cylinders is constructed from a conventional case hardened steel (e.g. 4140).
  • Folding cylinder 12 is rotatable about a folding axis 16 and cutting cylinder 14 is rotatable about a cutting axis 18.
  • Cutting cylinder 14 includes a female indentation 20 which extends inwardly from the periphery thereof.
  • Located in indentation 20 is a knife box 22 which is composed of a first knife box piece 24 and a second knife box piece 26.
  • First knife box piece 24 includes a base 28, an upwardly extending side 30 and an overhang 32.
  • a cutting knife 34 is provided which is conventional and includes a cutting edge at the tip thereof.
  • a bolt 36 bolts knife box piece 24 to knife box piece 26 and secures cutting knife 34 in the conventional fashion.
  • a set screw 38 is provided for controlling the radial movement of cutting knife 34.
  • a rubber check 40 having a durometer hardness of 65 plus or minus includes a base 42 and an extended portion 44.
  • Base 42 includes three sides, one of which contacts the left side of cutting knife 34 for the orientation of said cutting knife shown in FIG. 2.
  • the right side of the extension 40 contacts cutting knife 34.
  • the bottom (second) side of base 42 contacts the base 28 and the third side of base 42 contacts the inside surface of upwardly extending side 30.
  • the shoulder between base 42 and extension 44 contacts the underside of overhang 32 for the unstressed condition of cheek 40.
  • the outer edge 44a of extension 44 is spaced slightly from the tip of cutting knife 34 in a radially inward direction.
  • a second cheek 46 is provided which has the same composition as check 40 and is the mirror image thereof.
  • Check 46 includes a base 48 and an extension 50.
  • Base 48 is in contact with the base of knife box piece 20, in contact with the right side of cutting knife 34 and in contact with the inside vertical surface of knife box piece 26.
  • the shoulder between base 48 of cheek 46 and extension 50 thereof is in contact with the under surface of the overhang of knife box piece 24. A slight gap exists between extension 50 and the vertical edge of the overhang of knife box piece 26.
  • a receptacle 12a is located in the periphery of cylinder 12 and received therein is a cutting rubber 1217 having notch 12b therein.
  • a web of paper identified by the reference numeral 52 passes between folding cylinder 12 and cutting cylinder 14.
  • the folding and cutting cylinders are rotated in unison and web 52 is passed therebetween and forced into the cutting knife which cuts the web.
  • the paper compresses the extensions of the cheeks.
  • Continued rotation of the cutting cylinder results in the cutting knife being no longer pointed toward the center of the folding cylinder and the inherent bias of the cheeks causes the cheeks to move outwardly stripping the paper from the cutting knife.
  • the cycle is then repeated. Friction between the cheeks and knife blade is at a minimum, minimizing knife blade wear.
  • the cheek arrangement just described reduces noise and the high frequency sounds that are annoying and cause fatigue.
  • the replacement of the cheeks is simple. Still further, the cheeks help pull the web providing a better looking product. It is very simple to change over from conventional wooden cheeks to the cheeks of the present invention and this does not require any modifications of existing structure. By using the cheeks of the present invention there is no need for hard woods and/or springs.
  • the cheek arrangement shown in FIG. 2 is particularly suited for a Hoe 3:2 press.
  • FIG. 4 of the drawings an alternate embodiment of the present invention is disclosed and is identical to the previous embodiment except as hereinafter described.
  • the knife box pieces 102 and 104 do not include an overhang.
  • Checks 106 and 108 are provided and are the mirror image of each other and flank cutting knife 110.
  • Cheek 106 is substantially rectangular and is made from a rubber having a durometer hardness of 65 plus or minus 5.
  • Cheek 106 includes a rounded edge 112 which leads to a vertical edge 114 which is spaced slightly from the vertical wall of knife box piece 102.
  • the base of check 106 contacts the base of knife box piece 102 and edge 116 of check 106 contacts the left face of cutting blade 110.
  • Cheek 108 is identically arranged with respect to knife box piece 104 and the right side of cutting blade 108.
  • a pin 118 extends from the vertical portion of knife box piece 102 through a transverse hole in cheek 106, through an enlarged hole 120 in cutting blade and through a hole in cheek 108 to a vertical portion of knife box piece 104. It is noted that registered holes are provided in the vertical portions of knife box pieces 102 and 104 which receive pin 118. It is also noted that hole is substantially larger than the diameter of pin 118 and the inside surface of the holes in the cheeks are in contact with pin 118.
  • the pin serves the function of holding the checks in place and eliminates the need for the knife box pieces to have an overhang.
  • FIG. 4 The structure shown in FIG. 4 is particularly suited for a Goss Mark 1 press.
  • FIG. 5 of the drawings an alternate embodiment 200 of the present invention is shown and includes knife box pieces 202 and 204 which are identical to the knife box pieces described in connection with FIGS. 1, 2 and 3.
  • Cheeks 206 and 208 are provided which are the mirror image of each other and are made from a rubber having a durometer hardness of 65 plus or minus 5. Cheeks 206 and 208 flank the cutting blade.
  • Cheek 206 is identical to check 40 except as hereinafter described. Cheek 206 includes a rounded upper portion 210 which extends between the upper edge 212 of the cheek to a vertical edge 214 thereof. Vertical edge 214 is spaced slightly from the vertical edge of the overhang of knife box piece 202. Edge 214 extends downwardly to a horizontal edge 216 which is spaced below the overhang of knife box piece 202. A gap exists between the vertical section of knife box piece 202 and a vertical edge 218 of cheek 206.
  • Cheeks 206 and 208 are free floating, i.e. they can move up and down as required. During cutting the checks are compressed by the web of paper and after the cutting cylinder is rotated so that the cutting blade is no longer pointed toward the center of the folding cylinder the cheeks expand stripping the web of paper from the cutting blade.
  • the embodiment shown in FIG. 5 minimizes the amount of friction between the cheeks and the cutting box pieces and provides the advantages heretofore noted. It is noted that the overhang of cutting box piece 202 overlays edge 216 of cheek 206 and prevents the check from whirling in an outward direction, A similar arrangement inhibits the radial outward movement of check 208.
  • FIG. 5 The structure shown in FIG. 5 is particularly suited for a Goss Mark 2 or Mark 5 press.
  • cheek 300 includes a base 302 and an extended cheek 304.
  • Base 302 includes a bottom 306 and upright sides 308 to 310.
  • Side 308 extends for the full height of the cheek.
  • Side 312 extends inwardly to side 310 to upright side 13.
  • Inclined side 316 extends from side 314 to small fiat 318.
  • Small flat 318 is relatively narrow compared to the extension of extended cheek 304.
  • Cheek 320 is identical except being the reverse image of cheek 300.
  • the structure shown in FIG. 6 is particularly suited for a 3 to 2 or 2 to 1 press.
  • the cheeks can be made from conventional rubber materials it has been found that the use of cheeks made from synthetic rubber, dry filter covering and a sulfur core provide excellent results.
  • the dry filter covering can comprise 47 percent by weight (plus or minus percent) of the final cheek, the sulfur core 4 percent by weight (plus or minus 5 percent) of the final cheek and the synthetic rubber 9 percent by weight (plus or minus 5 percent) of the final cheek.
  • all cheeks are made as hereinbefore set forth.
  • a cutting cylinder may have two cutting blades and utilize the principals of the present invention.
  • Apparatus for severing a web of paper comprising a cutting cylinder and a folding cylinder, said folding and cutting cylinders being in close proximity to each other with there being a slight clearance therebetween, said cutting cylinder including a female indentation having first and second opposed sides and a base, a knife box mechanism located in said indentation, said knife box mechanism including a first knife box piece and a second knife box piece, said first knife box piece including a side which is flush with a first opposed side of said female indentation,
  • first knife box piece having a bottom surface which is flush with a portion of the base of said female indentation
  • said first knife box piece further including an overhang extending perpendicularly away from said side thereof towards said second opposed side of said female indentation
  • said second knife box piece including a side that is flush with said second opposed side of said female indentation
  • said second knife box piece further including a base having a bottom surface flush with a portion of said female indentation base
  • said second knife box piece including an overhang which extends perpendicularly away from said side of said second knife box piece, thebases of said first and second knife box pieces being spaced from each other, a bolt extending through said first and second knife box pieces and maintaining said first and second knife box pieces in spaced apart relationship with each other
  • a first rubber cheek having a base and an extended portion, a shoulder between said base and said extended portion and said first rubber cheek base including an upper surface, said base of said first rubber cheek in contact with said base of said first knife box piece and said side of said first knife
  • Apparatus for severing a web of paper comprising a cutting cylinder and a folding cylinder, said folding and cutting cylinders being in close proximity to each other with there being a slight clearance therebetween, said cutting cylinder including a female indentation having first and second opposed sides and a base, a knife box mechanism located in said indentation, said knife box mechanism including a first knife box piece and a second knife box piece, said first knife box piece including a side which is flush with a first opposed side of said female indentation, said first knife box piece further including a base having a bottom surface which is flush with a portion of the base of said female indentation, said first knife box piece further including an overhang extending perpendicularly away from said side thereof towards said second opposed side of said female indentation, said second knife box piece including a side that is flush with said second opposed side of said female indentation, said second knife box piece further including a base which has a bottom surface which is flush with a portion of said female indentation base, said second knife
  • Apparatus for severing a web of paper comprising a cutting cylinder and a folding cylinder, said folding and cutting cylinders being in close proximity to each other with there being a slight clearance therebetween, said cutting cylinder including a female indentation having a first and second opposed sides and a base, a knife box mechanism located in said indentation, said knife box mechanism including a first knife box piece and a second knife box piece, said first knife box piece including a side which is flush with a first opposed side of said female indentation, said first knife box piece further including a base having a bottom surface which is flush with a portion of the base of said female indentation, said second knife box piece including a side that is flush with said second opposed side of said female indentation, said second knife box piece further including a base with said base having a bottom surface flush with a portion of said female indentation base, the bases of said first and second knife box pieces being spaced from each other, a bolt extending through said first and second knife box pieces and maintaining said first and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Exhaust Silencers (AREA)
US46928774 1973-07-10 1974-05-13 Method and apparatus for noise suppression Expired - Lifetime US3921481A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3292373A GB1482912A (en) 1973-07-10 1973-07-10 Rotary machinery
GB5108873 1973-11-02
GB558674 1974-02-07

Publications (1)

Publication Number Publication Date
US3921481A true US3921481A (en) 1975-11-25

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Application Number Title Priority Date Filing Date
US46928774 Expired - Lifetime US3921481A (en) 1973-07-10 1974-05-13 Method and apparatus for noise suppression
US05/476,195 Expired - Lifetime US4000670A (en) 1973-07-10 1974-06-03 Method and apparatus for noise suppression

Family Applications After (1)

Application Number Title Priority Date Filing Date
US05/476,195 Expired - Lifetime US4000670A (en) 1973-07-10 1974-06-03 Method and apparatus for noise suppression

Country Status (9)

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US (2) US3921481A (de)
JP (1) JPS5049710A (de)
AU (1) AU7101174A (de)
BR (1) BR7405654D0 (de)
CA (1) CA1020468A (de)
DE (1) DE2432418A1 (de)
FR (1) FR2241379A1 (de)
IT (1) IT1015770B (de)
NL (1) NL7408718A (de)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105748A1 (de) * 1982-10-01 1984-04-18 WM. R. STEWART & SONS (HACKLEMAKERS) LIMITED Schneidvorrichtung
US5309804A (en) * 1992-03-11 1994-05-10 Newsday, Inc. Rotary cutting apparatus and method for cutting newspapers or the like
US6644153B1 (en) * 2000-02-02 2003-11-11 Jonco Die Company, Inc. Ejector configuration and method and apparatus for mounting the same
US6966245B1 (en) * 1998-04-03 2005-11-22 Container Graphics Corporation Trim edge stripper for a corrugated board rotary cutting die
US20050274247A1 (en) * 2004-06-14 2005-12-15 Sean Talkington Stripper apparatus and methods for rotary dies
US7765908B1 (en) * 2000-03-23 2010-08-03 Goss International Americas, Inc. Double-cut folder with combination cut and nip cylinder
US20130061732A1 (en) * 2011-03-09 2013-03-14 Curt G. Joa, Inc. Multi-profile die cutting assembly
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703712S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703711S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum communication structure
USD704237S1 (en) 2013-08-23 2014-05-06 Curt G. Joa, Inc. Ventilated vacuum commutation structure
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
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US9550306B2 (en) 2007-02-21 2017-01-24 Curt G. Joa, Inc. Single transfer insert placement and apparatus with cross-direction insert placement control
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles

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EP0105748A1 (de) * 1982-10-01 1984-04-18 WM. R. STEWART & SONS (HACKLEMAKERS) LIMITED Schneidvorrichtung
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US5419582A (en) * 1992-03-11 1995-05-30 Newsday, Inc. Rotary cutting apparatus and method for cutting newspapers or the like
US6966245B1 (en) * 1998-04-03 2005-11-22 Container Graphics Corporation Trim edge stripper for a corrugated board rotary cutting die
US6644153B1 (en) * 2000-02-02 2003-11-11 Jonco Die Company, Inc. Ejector configuration and method and apparatus for mounting the same
US7765908B1 (en) * 2000-03-23 2010-08-03 Goss International Americas, Inc. Double-cut folder with combination cut and nip cylinder
US20050274247A1 (en) * 2004-06-14 2005-12-15 Sean Talkington Stripper apparatus and methods for rotary dies
US10266362B2 (en) 2007-02-21 2019-04-23 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US9950439B2 (en) 2007-02-21 2018-04-24 Curt G. Joa, Inc. Single transfer insert placement method and apparatus with cross-direction insert placement control
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US9550306B2 (en) 2007-02-21 2017-01-24 Curt G. Joa, Inc. Single transfer insert placement and apparatus with cross-direction insert placement control
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8656817B2 (en) * 2011-03-09 2014-02-25 Curt G. Joa Multi-profile die cutting assembly
US20130061732A1 (en) * 2011-03-09 2013-03-14 Curt G. Joa, Inc. Multi-profile die cutting assembly
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles
US9908739B2 (en) 2012-04-24 2018-03-06 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US11034543B2 (en) 2012-04-24 2021-06-15 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703711S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum communication structure
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703712S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD704237S1 (en) 2013-08-23 2014-05-06 Curt G. Joa, Inc. Ventilated vacuum commutation structure
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10494216B2 (en) 2015-07-24 2019-12-03 Curt G. Joa, Inc. Vacuum communication apparatus and methods
US10633207B2 (en) 2015-07-24 2020-04-28 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
DE202015105416U1 (de) * 2015-10-13 2017-01-16 Krones Aktiengesellschaft Rotierende Schneid- und/oder Perforiervorrichtung für flächiges Endlosmaterial

Also Published As

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IT1015770B (it) 1977-05-20
BR7405654D0 (pt) 1975-05-20
NL7408718A (nl) 1975-01-14
DE2432418A1 (de) 1975-01-30
US4000670A (en) 1977-01-04
JPS5049710A (de) 1975-05-02
AU7101174A (en) 1976-01-15
FR2241379A1 (de) 1975-03-21
CA1020468A (en) 1977-11-08

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