Sequential Winding Stations Patents (Class 242/531)
  • Patent number: 10370213
    Abstract: A device for winding strip-shaped material onto at least one reel (10) comprises a support arm (11) that is movable relative to the machine frame (12) and has at least one horizontal reel shaft (13) for holding the reel (10). The reel shaft (13) holding the reel is made to rotate by at least one rotary drive (14). A release mechanism is provided for releasing the reel (10) when the support arm (11) moves relative to the machine frame (12). In order to design a device that is better adapted to the specificities of rigid materials and to greater weights of the strip-shaped material, the support arm (11) supporting the reel when the strip-shaped material is wound onto the reel simultaneously forms the release mechanism, and a linear movement mechanism (15) is provided for moving the support arm (11) parallel to the reel shaft (13) and transversely to a strip feeding mechanism (16) in order for the reel to be released.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: August 6, 2019
    Assignee: LEICHT STANZAUTOMATION GMBH
    Inventor: Jürgen Leicht
  • Publication number: 20150145631
    Abstract: In a manufacturing method of a coil, a plurality of unit coil portions is placed side by side in a winding axis direction, each of the unit coil portions is formed of a plurality of unit wound portions having mutually different inner circumferential lengths, and the unit wound portion having a small inner circumferential length enters inside the unit wound portion having a large inner circumferential length. In coil winding method, a step of forming an outward wound unit coil portion formed of a plurality of unit wound portions laminated from an inner circumferential side to an outer circumferential side and forming an inward wound unit coil portion formed of a plurality of unit wound portions laminated from the outer circumferential side toward the inner circumferential side are alternately repeated.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Hitoshi Yoshimori, Koji Nakashima
  • Patent number: 8262011
    Abstract: A winder for winding a web to produce a rolled product is provided. The winder includes a web transport apparatus that is used for conveying the web. Also included in one exemplary embodiment is a plurality of independent winding modules. The winding modules are independently positioned to independently engage the web as the web is conveyed by the web transport apparatus. The winding modules may be configured to wind the web to form a rolled product by center winding, surface winding, and combinations of center and surface winding. The winding modules are structurally and operationally independent of one another where if one module is disabled, another may still operate to produce the rolled product without shutting down the winder.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: September 11, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Steven James Wojcik, Dennis Marvin Jobs, Kenneth Allen Pigsley, James Leo Baggot
  • Patent number: 8210462
    Abstract: A winder for winding a web to produce a rolled product is provided. The winder includes a web transport apparatus that is used for conveying the web. Also included in one exemplary embodiment is a plurality of independent winding modules. The winding modules are independently positioned to independently engage the web as the web is conveyed by the web transport apparatus. The winding modules may be configured to wind the web to form a rolled product by center winding, surface winding, and combinations of center and surface winding. The winding modules are structurally and operationally independent of one another where if one module is disabled, another may still operate to produce the rolled product without shutting down the winder.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 3, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Steven James Wojcik, Dennis Marvin Jobs, Kenneth Allen Pigsley, James Leo Baggot
  • Publication number: 20110057068
    Abstract: A winder for winding a web to produce a rolled product is provided. The winder includes a web transport apparatus that is used for conveying the web. Also included in one exemplary embodiment is a plurality of independent winding modules. The winding modules are independently positioned to independently engage the web as the web is conveyed by the web transport apparatus. The winding modules may be configured to wind the web to form a rolled product by center winding, surface winding, and combinations of center and surface winding. The winding modules are structurally and operationally independent of one another where if one module is disabled, another may still operate to produce the rolled product without shutting down the winder.
    Type: Application
    Filed: March 30, 2010
    Publication date: March 10, 2011
    Inventors: James Leo Baggot, Steven James Wojcik, Dennis Marvin Jobs, Kenneth Allen Pigsley
  • Publication number: 20100206978
    Abstract: A string emanating from a packaging machine is arranged in a slot by means of a feed inlet and placed in a winding shaft (12). This placement is assisted by the use of positioning brushes (4). After the initial introduction, winding up takes place upon rotation of the winding shaft and upon further engagement of the string in the slot (14) in the winding shaft. The winding shaft is provided on a carrying disc (5) and said carrying disc is also arranged so as to be rotatable. During the first stage, the section of the string emanating from the supply path is pulled with constant force. After the string has been separated from the remaining material, the winding is carried out. Subsequently, the rotating shaft with the string, through rotation of the carrying disc, reaches a next position in which pressing the reel and thus adhesion of the reel end moves the winding shaft out of the reel. The reel has already been checked prior to entering the winding device to determine whether it has to be inspected.
    Type: Application
    Filed: September 12, 2008
    Publication date: August 19, 2010
    Applicant: GLOBAL FACTORIES B.V.
    Inventor: Richard Rudolf Theodoor Van den Brink
  • Publication number: 20090294569
    Abstract: A carousel coiler with two coilers, which are mounted in a rotatable rotor, are rotatably driven independently of each other, are intended for the successive, continuous winding of metal strip and each have spray heads, which comprise a number of segments that can be moved in a spreading manner, are supported on axially displaceable wedge-shaped directing surfaces and on which the coilers can be cyclically moved in each case from a starting position into a strip-coil transfer position by turning of the rotor, is to be developed in such a way that a pivot-into-place outside bearing becomes superfluous, that the coil or the coil to be wound is always supported on both sides in every position, and that the carousel coiler can be used both for winding up and unwinding coils.
    Type: Application
    Filed: July 31, 2007
    Publication date: December 3, 2009
    Inventor: Alfons Baumhoff
  • Publication number: 20080067279
    Abstract: A method and apparatus for making and winding bags is disclosed. The bag machine includes an unwind section, a forming section, and a winder. The winder has an infeed nip and two spindles. Each spindle is located along a respective one of two alternative film paths. The spindles can be fixed position spindles and the alternative film paths can be predominantly downward. An over speed nip may be provided between the infeed nip and the alternative film paths to separate rolls or to separate all bags. An overlapper can be included. Rods that travel in an elliptical orbit, and/or air nozzles can be part of the overlapper. Air nozzles can also be used to direct the film to the appropriate alternative path. Conveyor belts along the alternative film paths can be used to guide the film. Static pinners can be used to help bold the bags to the conveyor, or the last bag to the roll. Pop-up fingers and air horns can help start the roll on a spindle. Paper banders can be use, as can pneumatic devices.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 20, 2008
    Applicant: CMD Corporation
    Inventor: Paul A. Selle
  • Patent number: 6964393
    Abstract: The invention relates to a method in sequential winding stations which are in a production line processing the web at successive stages. In the method the paper web issuing from a paper machine (PK) is reeled in a reel-up (KR1) around a reel spool (T1) to form a reel, the paper web is unwound in an unwind (AR) from the reel to the finishing machine (JK) for paper, and the paper web passed through the finishing machine (JK) for paper is reeled in a reel-up (KR2) around a reel spool (T2) to form a reel. At least the reel spools (T1) used in the area between the reel-up (KR1) of the paper machine (PK) and an unwind thereafter, have different dimensions, advantageously larger diameters, than the reel spools (T2) used later in the production line.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: November 15, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Teppo Kojo, Esa Aalto
  • Patent number: 6918560
    Abstract: A winding apparatus adaptable to longer films with minimum design changes in existing apparatus has a winding shaft 31 on which a reel member 50 capable of winding a given film at multiple stages can be mounted. The winding shaft 31 can be moved in the rotational and axial directions of the reel member 50. The winding apparatus 10 further has a driving mechanism 40 for giving power in the rotational and axial directions to the winding shaft 31.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: July 19, 2005
    Assignee: Sony Chemicals Corporation
    Inventor: Koji Arai
  • Patent number: 6892976
    Abstract: An automatic reel changer (10) for a tape-and-reel handler is formed to automatically insert a carrier tape (15) from the tape-and-reel handler into an empty receiving reel (80), wind the carrier tape (15) onto the receiving reel (80), and apply a securing device to keep the carrier tape (15) fixedly attached to the receiving reel (80). The automatic reel changer (10) then removes the full receiving reel (80) and replaces it with another empty receiving reel (81) and continues the process.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: May 17, 2005
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventors: Kha Choy Foo, Letchumanan Kumaroviloo
  • Patent number: 6617007
    Abstract: A method and apparatus of forming coreless rolls of pressure sensitive adhesive tape involves the use of a mandrel assembly having a specific circumferential tape supporting segment thereon for winding tape. The circumferential tape supporting segment has a tape engaging surface portion that, in a radial orientation, is compressible yet sufficiently stiff to support the tape as it is successively wound about the mandrel to form a tape roll, and that is sufficiently pliant to permit ready axial removal of a wound tape roll from the shaft. The innermost wrap of pressure sensitive adhesive tape about the mandrel is masked by an adhesive liner. That liner is formed from one portion of a liner/tab segment which had been applied to the tape previously, and prior to winding, the tape is severed, and the remainder of that liner/tab forms an end tab on the outermost end of the previously formed coreless tape roll.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: September 9, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: David R. Cram, Dee Lynn Johnson, Harvey D. Ogren, Jeffery N. Jackson
  • Patent number: 6616809
    Abstract: Process and apparatus for producing paper reels from a paper web. The process includes calendering the paper web, longitudinally cutting the paper web into partial webs, and winding the partial webs into paper reels. The calendering, longitudinal cutting, and winding occur on-line and without intermediate winding. The apparatus includes a paper machine, a calender, a longitudinal cutting device, and a reel winding device. The paper machine, the calender, the longitudinal cutting device, and the reel winding device are successively arranged in a web run direction.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: September 9, 2003
    Assignee: Voith Paper Patent GmbH
    Inventors: Hans-Rolf Conrad, Dirk Cramer
  • Publication number: 20030160127
    Abstract: A winder for winding a web to produce a rolled product is provided. The winder includes a web transport apparatus that is used for conveying the web. Also included in one exemplary embodiment is a plurality of independent winding modules. The winding modules are independently positioned to independently engage the web as the web is conveyed by the web transport apparatus. The winding modules may be configured to wind the web to form a rolled product by center winding, surface winding, and combinations of center and surface winding. The winding modules are structurally and operationally independent of one another where if one module is disabled, another may still operate to produce the rolled product without shutting down the winder.
    Type: Application
    Filed: February 28, 2002
    Publication date: August 28, 2003
    Inventors: Steven James Wojcik, Dennis Marvin Jobs, Kenneth Allen Pigsley, James Leo Baggot
  • Patent number: 6595448
    Abstract: A multi-segment roll package comprises a continuous length of plastic tape [117] wound about a core [105] resulting in a spooled roll segment [109] sandwiched between two end roll segments [107A, 107B]. A tape guide winds one or more spiral windings [113] at an end position on the core. The tape guide traverses axially at a transition pitch greater than the tape width to the beginning of the spooled roll segment position and wraps a layer of overlapping windings to the end of the spooled roll segment. The tape guide traverses axially to the second end position and wraps one or more spiral windings at the second end position. The tape guide reverses axial direction and the process is repeated to build a roll package. The end roll segments provide stability to the ends of the roll package and allow larger diameter roll packages as compared to conventional spooled rolls.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: July 22, 2003
    Assignee: Tricon, Inc.
    Inventor: Kennith H. Helton
  • Patent number: 6585186
    Abstract: In the method in reeling of a paper or paperboard web, a web (W) is guided by means of a reeling cylinder (1) onto a reel (R) to be formed around a reeling axle (2). There are at least two reeling cylinders (1), both of which are used to reel in turn the web (W) onto the corresponding reel. The reels (R) are formed in turn in reeling stations located on opposite sides of the pair of reeling cylinders (1). The web (W) travels between the reeling cylinders (1) to either reeling cylinder (1) and the corresponding reel (R).
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 1, 2003
    Assignee: Metso Paper, Inc.
    Inventor: Jarkko Räty
  • Publication number: 20030085311
    Abstract: A multi-segment roll package comprises a continuous length of plastic tape [117] wound about a core [105] resulting in a spooled roll segment [109] and two intermediate roll segments [303A, 303B] sandwiched between two end roll segments [107A, 107B]. A tape guide winds one or more spiral windings [113] at an end position on the core. The tape guide traverses axially at a transition pitch greater than the tape width to the intermediate roll segment and winds one or more spiral windings [110]. The tape guide traverses axially at a transition pitch to the beginning of the spooled roll segment position and wraps a layer of overlapping windings to the end of the spooled roll segment. The tape guide traverses axially to wrap a second intermediate winding and a second end winding. The tape guide reverses axial direction and the process is repeated to build a roll package.
    Type: Application
    Filed: December 18, 2002
    Publication date: May 8, 2003
    Inventor: Kennith H. Helton
  • Publication number: 20030047632
    Abstract: A package of tape including a plurality of body portions. Each body portion is formed as a series of steps, each step including a plurality of turns of tape that are wrapped about a core. During formation of each step, the winding position of the tape is varied. In one embodiment, the winding position of the tape is oscillated a fraction of the width of the tape per revolution of the core, or during a revolution of the core. In an alternative embodiment, the winding position of the tape is varied by a fraction of the width of the tape in a first direction after each approximately full turn of tape. During formation of an immediately adjacent step in the same body portion, the winding position of the tape is varied by a fraction of the width of the tape in a second direction, opposite the first direction.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 13, 2003
    Inventor: John Edward Duncan
  • Publication number: 20020158159
    Abstract: A multi-segment roll package comprises a continuous length of plastic tape [117] wound about a core [105] resulting in a spooled roll segment [109] sandwiched between two end roll segments [107A, 107B]. A tape guide winds one or more spiral windings [113] at an end position on the core. The tape guide traverses axially at a transition pitch greater than the tape width to the beginning of the spooled roll segment position and wraps a layer of overlapping windings to the end of the spooled roll segment. The tape guide traverses axially to the second end position and wraps one or more spiral windings at the second end position. The tape guide reverses axial direction and the process is repeated to build a roll package. The end roll segments provide stability to the ends of the roll package and allow larger diameter roll packages as compared to conventional spooled rolls.
    Type: Application
    Filed: April 26, 2001
    Publication date: October 31, 2002
    Inventor: Kennith H. Helton
  • Patent number: 6425547
    Abstract: A system for producing coreless fabric rolls includes a feed station (12) operable to supply a leading edge of a fabric web (24) from a parent roll (18). The system includes a first tucking station (132) operable to position the leading edge of the fabric web (24) adjacent one of a plurality of spindles (48, 50, 52) coupled to a turret (46). The system also includes a winding station (38) comprising a winding roller (36). The winding station (38) is operable to receive the leading edge in a nip defined by the spindle (48, 50, 52) and the winding roller (36) and wind the fabric web (24) into a fabric roll about the spindle (48, 50, 52). The system also includes a cutting station (40) operable to separate the fabric roll from a remaining portion of the fabric web (24). The system also includes a second tucking station (42) operable to receive the spindle (48, 50, 52) from the winding station (36) and wind a trailing edge of the fabric roll about the fabric roll.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: July 30, 2002
    Assignee: Ethicon
    Inventor: Balbir Singh
  • Patent number: 6405969
    Abstract: A method and apparatus of forming coreless rolls of pressure sensitive adhesive tape involves the use of a mandrel assembly having a specific circumferential tape supporting segment thereon for winding tape. The circumferential tape supporting segment has a tape engaging surface portion that, in a radial orientation, is compressible yet sufficiently stiff to support the tape as it is successively wound about the mandrel to form a tape roll, and that is sufficiently pliant to permit ready axial removal of a wound tape roll from the shaft. The innermost wrap of pressure sensitive adhesive tape about the mandrel is masked by an adhesive liner. That liner is formed from one portion of a liner/tab segment which had been applied to the tape previously, and prior to winding, the tape is severed, and the remainder of that liner/tab forms an end tab on the outermost end of the previously formed coreless tape roll.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: June 18, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Harvey D. Ogren, Jeffery N. Jackson, Dee Lynn Johnson, David R. Cram
  • Patent number: 6406417
    Abstract: Process and device for continuously winding a plurality of longitudinally cut paper webs at machine speed by using a device that includes support rollers and at least one pair of disks associated with each of the support rollers, such that the at least one pair of disks is arranged concentrically with and rotates independently of, its associated support roller. The at least one pair of disks includes a first winding device having a first cardboard tube disposed thereon and a second winding device having a second cardboard tube disposed thereon, such that each of the support rollers include at least one of the pair of disks, which are concentrically arranged with and which rotate independently of the support rollers.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: June 18, 2002
    Assignees: Voith Sulzer Papiertechnik Patent GmbH, Voith Sulzer Finishin GmbH
    Inventor: Helmut Fröhlich
  • Publication number: 20020017586
    Abstract: A paper web (W) is longitudinally divided into slit webs of desired widths and the slit webs are wound into rolls (R) about roll cores (H) at a winding station (17A, 17B). The web is cut by a web-severing device (16) in conjunction with the roll set change of the winding operation. At least two slitter assemblies (15A, 15B) are employed for slitting the web (W) and, when given ones of the slitter assemblies (15A, 15B) are slitting the web (W) into one set of slit webs, the desired ones of the other slitter assemblies (15A, 15B) are preset into desired slitting width positions for slitting the next set of slit webs. The winding apparatus has slitter assemblies (15) for longitudinally dividing a web (W) into slit webs and a winding station (17A; 17B) for winding the slit webs into rolls (R) and a web-severing device for cutting the web.
    Type: Application
    Filed: July 13, 2001
    Publication date: February 14, 2002
    Inventor: Pauli Koutonen
  • Patent number: 6340126
    Abstract: Devices and methods for paying off an elongate material between two coaxially aligned packages without interruption. The elongate material from a first wound package is connected to the elongate material of a second wound package by joining the tail end of the first wound package to the head end of the second wound package. Each wound package includes the elongate material having a body portion and a tail portion wound about a core. Also, each body portion has the head end at an outer diameter of the respective package and each tail portion has the tail end at an inner diameter substantially corresponding to a diameter of the core. Further, the path of the wound elongate material is transitioned from the first wound package to the second wound package by providing transition device having a supporting surface.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: January 22, 2002
    Assignee: Corning Cable Systems LLC
    Inventors: Warren Welborn McAlpine, Stephen Owen Mast, David Henry Smith, Joseph Varga
  • Patent number: 6264130
    Abstract: An apparatus and method of winding a continuously moving web, and for splicing and transferring the web from a first core to a second core with no-fold-back or wrinkling of the web material during the splice. The web is fed through a first nip point and thereby applied to a lay-on roll, the lay-on roll further applying the web material onto first and second cores alternatively. An electrostatic charging bar positioned downstream from the nip point emits an electrostatic charge onto the web to temporarily adhere the web to the lay-on roll. A rotatable cutting knife cooperatively engageable with the lay-on roll cuts the web at a point downstream from the electrostatic charging bar but upstream from the first and second cores to produce a tail and new leading edge. The tail continues to be wound about the first roll, and the new leading edge is affixed to the second roll and the web is thereafter wound about the second core.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: July 24, 2001
    Assignee: Faustel, Inc.
    Inventor: John J. Hartley, Jr.
  • Patent number: 6260786
    Abstract: A two-shaft linear motion type winder for winding up a sheet material, e.g. a film is provided, which can eliminate the occurrence of any mechanical loss by simplification of a transission device, shorten the path distance of the film upon roll changing, prevent the neck-in and wrinkling of the film and reduce vastly the roll changing cycle. It comprises at least a pair of upper-stage winding frames having holders for an upper winding shaft, suspended from an upper main frame to be slidingly movable back and forth in a given area; and a pair of lower-stage winding frames having holders for a lower winding shaft, disposed on a lower main frame to face upwards so as to be slidingly movable longitudinally in a given area.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: July 17, 2001
    Assignee: Fuji Tekko Co., Ltd.
    Inventor: Minoru Ueyama
  • Patent number: 6209814
    Abstract: A multi-roll segment package (101) for plastic tape comprises a plurality of roll segments made up of concentrically disposed spiral winding groups (119) separated and defined by helical winding portions of tape (121) connecting the spiral winding groups on adjacent roll segments. The spiral winding groups of the end roll segments (111A), (111B) comprise at least 2.5 times the number of windings as the center roll segments (115A), (115B), (115C). The roll package features high wind density and good resistance from telescoping.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: April 3, 2001
    Assignee: Tricon Conversion, LLC
    Inventor: Kennith H. Helton
  • Patent number: 6073824
    Abstract: An apparatus and method for cleanly breaking a continuously advancing cellulose web includes a transfer fabric which supports and advances the cellulose web to a wind up zone. The transfer fabric forms a closed loop and is driven at a desired speed by a drive roll. At least two spray nozzles are arranged transversely across the advancing cellulose web as it is carried on the transfer fabric. The spray nozzles are capable of emitting a liquid under high pressure against the advancing cellulose web to form perforations across the width thereof. A plurality of hollow cores are independently and sequentially moved into position at the wind up zone to receive the advancing cellulose web. The hollow cores are located downstream of the spray nozzles and each hollow core is capable of accumulating a predetermined amount of the cellulose web.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: June 13, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Robert Lee Gray, Richard Ames Horton
  • Patent number: 5967447
    Abstract: Reel cutter and method for a substantially continuously winding-on of partial web rolls. The reel cutter may include a cutting section adapted for cutting a material web into a plurality of partial webs and a winding section adapted for winding the plurality of partial webs onto partial web rolls. The partial web rolls may be arranged such that neighboring partial web rolls are located in winding position groups positionally offset from one another. The winding section may include at least one additional and no more than twice the number of winding position groups necessary for winding-on of the partial web rolls.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: October 19, 1999
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Joachim Hinz, Herbert Muller
  • Patent number: 5713534
    Abstract: A web winding and severing apparatus using a linear carriage arrangement wherein the cores are positioned relative to feed to a winding drum in a bilateral manner such that a core is always adjacent to the drum ready to receive the leading edge of the web. A pair of reciprocating carriages are mounted on a frame which supports a winding drum for rotation. The carriages movement relative to the drum is independent, yet coordinated such that as one carriage carries a filling winding core, the other stands ready on the opposite side of the winding drum with an empty core. As the web is severed the second carriage positions its core to become the winding core and the first carriage moves away to off-load the full core, then, returns to a ready position with a fresh core.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: February 3, 1998
    Assignee: IMD Corporation
    Inventors: John A. McClenathan, Robert Burns Douglass
  • Patent number: 5346150
    Abstract: The tail gap winder transfers a web from a first wind-up spindle to a second wind-up spindle by, immediately after the web is cut, pivoting the idler roller to lengthen the distance between the idler roller and the rotating drum to create a gap between the cut ends of the web; moving the first wind-up spindle away from the rotating drum surface as the gap passes under the first wind-up spindle location; moving the second wind-up spindle into contact with the rotating drum surface as the first wind-up spindle moves away; and winding the incoming cut edge around the second wind-up spindle. The idler roller pivots toward the rotating drum to decrease the distance between the idler roller and rotating drum and to take up the extra length of web during the winding portion of the operating cycle.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: September 13, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Leonard M. Volin