And Suction Means Patents (Class 162/279)
  • Patent number: 11319669
    Abstract: A lubricating device lubricates a circulating clothing of a machine for manufacturing a fibrous web. The device has a body with a feed chamber that has an inlet for supplying a pressurized liquid lubricant to the feed chamber and an outlet for discharging the lubricant therefrom. The body further has a nozzle chamber to which a nozzle for discharging the lubricant is connected. The nozzle has a flow-conducting connection to the feed chamber via the nozzle chamber and the outlet. Within the body, a diffuser is provided for diffusing the lubricant supplied through the outlet along the body, the diffuser being arranged between the outlet and the nozzle.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 3, 2022
    Assignee: Voith Patent GmbH
    Inventors: Mark Hodson, Karlheinz Straub, Wiebke Juergens, Fabian Koeberle
  • Publication number: 20080087399
    Abstract: The present invention is a suction box for dehydrating the intermediate form of an inorganic building board during manufacturing or dehydrating the material slurry which is eventually molded into inorganic building boards. The suction box can change the open area ratio of dehydration space easily and can be used with pressure forming machines. The suction box has a frame member with a bottom plate, plural bridge members, plural spacer members and a pair of fixture members. The open area ratio is the space formed between each bridge member, including an interval with the bridge member and an outer frame portion in the frame member with the bottom plate.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 17, 2008
    Applicant: NICHIHA CO., LTD.
    Inventor: Junyu Masaki
  • Patent number: 7303655
    Abstract: An apparatus is provided for conditioning a fabric being advanced in a machine direction in a papermaking machine. The fabric has an outer side adapted to engage a paper web and an opposing inner side. Such an apparatus comprises a fluid-emitting device configured to wet the fabric with a fluid so as to clean the fabric. An arcuate member disposed downstream of the fluid-emitting device is configured to engage the outer side of the fabric. More particularly, the arcuate member is configured to have the fabric wrapped at least partially thereabout such that the advancing fabric is centrifugally dewatered. Associated systems and methods are also provided.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: December 4, 2007
    Assignee: Metso Paper Karlstad Aktiebolag (AB)
    Inventor: Dennis Edward Jewitt
  • Patent number: 7166194
    Abstract: A water jet cutter for separation of a trim strip from a moving paper, cardboard, tissue or other type of fiber web, in a machine for the production and/or conversion of the fiber web, including at least one nozzle whose water jet is directed onto the fiber web. An advantage of the present invention is to simplify the construction of the device while maintaining at least equal operational reliability, and to enable installation above a pulper in order to eliminate the necessity for removal and extraction systems.
    Type: Grant
    Filed: April 19, 2003
    Date of Patent: January 23, 2007
    Assignee: Voith Paper Patent GmbH
    Inventors: Karlheinz Straub, Michael Sollinger, Ralf Pfifferling
  • Patent number: 7001486
    Abstract: A vacuum device for a paper web making apparatus has a housing having an outer web-facing surface and a vacuum channel extending within the housing and having an opening at the web-facing surface. A vacuum source is in fluid communication with the vacuum channel and is operable to draw a vacuum on the paper web via the vacuum channel opening. A fluid delivery system is operable to deliver cleaning fluid into the vacuum channel wherein the vacuum source is operable during the delivery of cleaning fluid into the vacuum channel. In another embodiment, the fluid delivery system is operable to deliver cleaning fluid into the vacuum channel in a fluid delivery direction that is at least partially different from the direction of flow of the vacuum within the vacuum channel.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 21, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Sheldon John Hilger
  • Publication number: 20040118543
    Abstract: A vacuum device for a paper web making apparatus has a housing having an outer web-facing surface and a vacuum channel extending within the housing and having an opening at the web-facing surface. A vacuum source is in fluid communication with the vacuum channel and is operable to draw a vacuum on the paper web via the vacuum channel opening. A fluid delivery system is operable to deliver cleaning fluid into the vacuum channel wherein the vacuum source is operable during the delivery of cleaning fluid into the vacuum channel. In another embodiment, the fluid delivery system is operable to deliver cleaning fluid into the vacuum channel in a fluid delivery direction that is at least partially different from the direction of flow of the vacuum within the vacuum channel.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventor: Sheldon John Hilger
  • Publication number: 20040007337
    Abstract: The invention relates to a method and a screen for screening two or more pulp mixtures with different roughness. The screen comprises a first screen cylinder and a second screen cylinder. A coarse first pulp mixture is fed into the inlet end of the first screen cylinder, and a second, less coarse pulp mixture is supplied to the second screen cylinder. The pulp mixtures are screened by means of a screen surface of the screen cylinders into accept that passes apertures provided in the screen surface and reject that does not pass the apertures. The accept from the second cylinder is conveyed by means of a guide tube provided between the cylinders towards the inlet end of the first cylinder and it is finally mixed with the first pulp mixture. The accept from the first and the second pulp mixture passes the screen surface of the first screen cylinder.
    Type: Application
    Filed: April 10, 2003
    Publication date: January 15, 2004
    Inventor: Timo Vuorinen
  • Patent number: 6592721
    Abstract: An air delivery device is provided for dewatering a suction roll in a paper machine by applying pressurized air to expel residual water or debris outwardly from through-holes. The air delivery device is positioned at a suitable circumferential position of the suction roll to prevent water carryover back to the suction box location. In one preferred embodiment, an internal blowbox is mounted near the inner surface of the suction roll for blowing out water from the suction roll holes to augment the natural centrifugal forces. The blowbox can be used as a standalone dewatering unit, or in conjunction with an external doctor blade or wipe. In another preferred embodiment, at least one air knife, air pipe or air shower is used for dewatering. In another preferred embodiment, at least one interior stationary air foil is used to generate a pressure pulse which creates outward air flow through the through-holes.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: July 15, 2003
    Assignee: International Paper Company
    Inventors: D. W. Anderson, Robert H. Herring
  • Publication number: 20030094255
    Abstract: A device for cleaning the at least one screen in a papermaking plant enables cleaning of the screen that is guided over rollers. The cleaning device has at least one vacuum chamber which bears against the screen. At least one spray nozzle is arranged in the vacuum chamber to transport a cleaning liquid, in particular water, to the screen. The at least one vacuum chamber is arranged radially outside one of the rollers and the screen, in the area of the vacuum chamber, bears on the roller at least over a major part of its length.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 22, 2003
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 6468397
    Abstract: A system and process for removing unwanted fibers from a forming fabric during a wet papermaking process is disclosed. The system includes a scarfing shower configured to emit a cleaning fluid that contacts the forming fabric. In particular, the cleaning fluid tangentially contacts the forming fabric while the forming fabric is being guided around a turning roll. Preferably, the cleaning fluid is emitted in a direction that is opposite to the direction at which the forming fabric is moving.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: October 22, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Strong C. Chuang
  • Publication number: 20020060054
    Abstract: Suction box in a paper machine including a vacuum chamber, a deck or a number of substantially U-section holders open toward a wire and ribs arranged in the deck or the holders so that they can be loaded against the wire. At least in a running situation, the deck of the suction box is curved or the ribs are arranged to provide a curve run of the wire so that the wire tension of the curved run over the deck or ribs serves to lower a normal force which is produced by the vacuum present in the suction box and which is effective between the wire and the deck or ribs.
    Type: Application
    Filed: September 7, 2001
    Publication date: May 23, 2002
    Inventors: Jorma Snellman, Antti Poikolainen, Ari Puurtinen, Samppa Salminen
  • Publication number: 20020060031
    Abstract: Machine equipment in a paper or board machine comprising at least one wear ledge for contact with a clothing, and a support body for the wear ledge and a device for mounting the wear ledge to its support body. In accordance with the invention, the mounting device has a locking bar arranged in a groove in the wear ledge, and a cavity is formed in the support body and contains a press bar. The support body defines a plurality of holes extending from the cavity and open toward the groove in the wear ledge. Connecting elements extend through the holes and are rigidly connected to the clamping bar and the press bar, and spring members in the cavity act between the press bar and an opposite support surface of the cavity to retain the wear ledge against the support body in a stable operating position. An expandable hose is arranged in the cavity so as, when activated, to press against the press bar so that the spring members are compressed and the wear ledge becomes free for pulling out along the locking bar.
    Type: Application
    Filed: March 20, 2001
    Publication date: May 23, 2002
    Applicant: Valmet-Karlstad AB
    Inventor: Per Anders Jansson
  • Publication number: 20020060037
    Abstract: A machine for the production of a multi-layer fiber stock web, specifically a paper or cardboard web, whereby a first and a second layer are couched as a result of being delivered by an associated forming belt or wire to a couching element around which a second forming belt, or wire delivering the second layer is guided. This second forming belt, or wire impacts/runs onto the couching element before the second layer, which is supported by it, makes contact with the first layer. The second layer, at least in the location where it comes into contact with the first layer, is retained through suction force to the second forming belt wire.
    Type: Application
    Filed: May 24, 2001
    Publication date: May 23, 2002
    Inventors: Gunter Halmschlager, Klaus Wulz, Christoph Haase
  • Patent number: 6153056
    Abstract: Draining device and method for draining water from an interior surface of a felt belt loop circulating in a run direction via centrifugal force at a region of convex curvature of the interior surface of the felt belt. The draining device includes jets positioned across a width of the felt belt adapted to blast one of a displacing material and a displacing fluid against the felt belt at a position of one of in and in front of the convex region with respect to the run direction. The method includes directing jets of one of displacing fluid and displacing material against the interior surface of the felt belt to displace the water in the interior surface of the felt belt, and centrifugally spinning the displaced water out of the interior surface of the felt belt into a collecting device located within the felt belt loop.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: November 28, 2000
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Christian Schiel
  • Patent number: 6126788
    Abstract: An apparatus for the dewatering of a traveling press felt carries a purging fluid to the inside surface of the felt loop. The purging fluid flushes water from the felt into receptacles inside the felt loop. Purging nozzles oriented in the cross machine direction, or a multitude of suction slots oriented in the running direction, may be used. The nozzles or slots are incorporated into a nozzle block that is fastened to a suction box or a blow box.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: October 3, 2000
    Inventor: Christian Schiel
  • Patent number: 6099691
    Abstract: A method and apparatus for cleaning the forming fabric used on a papermaking machine includes a chamber surrounding a span of the forming fabric on either side thereof. A source of sub-atmospheric air pressure is connected to the chamber for removing water mist surrounding the fabric. Mounted within the chamber is a pair of high pressure-low volume water impingement showers in substantially opposed array for directing jets of relatively high pressure water against the forming fabric as the forming fabric passes through the chamber via slots on either end thereof. In a preferred embodiment, downstream of the pair of high pressure needle showers is a second shower apparatus comprising a relatively low pressure-high volume flooding water shower to direct a water spray against the inner side of the looped forming fabric to flood the interstices of the forming fabric with water to wash out pulp fibers therefrom.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: August 8, 2000
    Assignee: Beloit Technologies, Inc.
    Inventors: Robert L. Clarke, Jeffrey H. Pulkowski
  • Patent number: 5964960
    Abstract: Cleaning device to clean a roll, e.g., a concrete or granite roll, in a paper machine. The cleaning device may include a spray unit that may include a high-pressure spray device having an operational pressure of at least approximately 10 bar to spray a surface of the roll with a cleaning agent and a device to remove the cleaning agent from the roll surface.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: October 12, 1999
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventor: Karl Josef Boeck
  • Patent number: 5944956
    Abstract: A doctor system (20) and an associated method for cleaning the moving surface (30) of a papermachine component (22) which is begrimed or wetted by a paper web (28) moved around the surface utilizes an air nozzle (54) supportable in a stationary condition adjacent the surface of the papermachine component for directing a stream of air in the form of a knife from a source generally toward the surface to dislodge grime and water from the surface. The system also includes a collection receptacle (68) positionable adjacent the nozzle for collecting grime and water which are dislodged from the surface by the air knife for disposal.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: August 31, 1999
    Assignee: Valmet, Inc.
    Inventor: Marco Marcheggiani
  • Patent number: 5851358
    Abstract: The invention is directed to a paper making machine having a wet end associated with a wet fiber web. A forming fabric has a plurality of voids therein and carries liquid from the fiber web. A roll disposed at the wet end of the paper making machine carries the forming fabric. The roll and the forming fabric define a diverging area therebetween which causes liquid in the forming fabric to exit the voids. A doctor back includes a doctor element associated with the roll. A shower provides a liquid output which is directed relative to and lubricates the doctor element. A suction chamber has an at least partially open top and an outlet. The open top is positioned relative to each of the doctor blade and the diverging area to collect liquid from the shower and liquid exiting the voids in the forming fabric in the diverging area. A cyclone separator connected to the suction chamber receives liquid from the suction chamber outlet.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: December 22, 1998
    Assignee: Voith Sulzer Paper Technology North America, Inc.
    Inventor: Werner Kade
  • Patent number: 5660688
    Abstract: A device and method for washing a wire in a paper or board machine including a wash-nozzle pipe arranged at one side of the wire for spraying a jet of a washing liquid such as water at the wire. At an opposite side of the wire, a suction device applies suction to draw mist arising from the washing of the wire. Directly alongside the suction device, at the same side of the wire, there is a blow device, through which a gas such as air is blown onto the face of the wire and through the wire to dry the wire and remove additional water, dirt and/or other impurities not removed by the suction device.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: August 26, 1997
    Assignee: Valmet Corporation
    Inventor: Seppo Kiviranta
  • Patent number: 5573644
    Abstract: An apparatus for guiding a wire including a device for producing a washing jet and a device for removing washing mist generated from the washing jet which has a suction box. The suction box is located on an opposite side of the wire from the device for producing a washing jet. The suction box has a duct through which the mist produced in the washing of the wire is passed into an inlet chamber. The duct is arranged at an angle, preferably at an acute angle, relative to the running direction of the wire. In conjunction with, a mist suction device, there is provided a list which is in contact with the wire and deflects the wire so that the direction of arrival of the wire at the list differs from the direction of departure of the wire from the list.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: November 12, 1996
    Assignee: Valmet Corporation
    Inventors: Antti Poikolainen, Kari Lamminmaki
  • Patent number: 5417809
    Abstract: A papermaking water system utilizing vacuum pump sealing water and having a zero sealing water discharge. A group of water seal vacuum pumps are used in a papermaking machine to generate subatmospheric pressure in suction equipment and thereby extract water from a wet paper web. During operation of the vacuum pumps, the sealing water is heated and the heated water is discharged to a cooling tower to cool the water which is then recirculated to the vacuum pumps. Steam from a generating plant is supplied to the dryer drums in the dryer section of the papermaking machine, and the steam condensate is combined with the heated sealing water flowing to the cooling tower. By using steam condensate as makeup water, no ionic buildup will occur in the closed system, and high quality water is withdrawn from the closed system and may be used in other sections of the papermaking machine, so that there is no discharge of sealing water to the sewer system.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: May 23, 1995
    Assignee: Hoffman Environmental Systems, Inc.
    Inventors: Roger P. Hoffman, Gerald O. Walraven
  • Patent number: 5230776
    Abstract: A paper machine for manufacturing a soft crepe paper web, comprising a wet end (1) having a forming wire (4) for forming and carrying a paper web (7), and a drying section (2) provided with a drying cylinder (12), said paper machine having a first operating arrangement for manufacturing a soft crepe paper web with certain bulk and softness values, in which first operating arrangement the drying section has a felt (13) arranged to run in a loop from a pick-up roll (14) at the transition between the wet end and drying section, to a press roll (15) at the drying cylinder, and the carrying forming wire runs up to the pick-up roll (14) to transfer the paper web to the felt (13).
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: July 27, 1993
    Assignee: Valmet Paper Machinery, Inc.
    Inventors: Ingmar A. Andersson, Cai O. Hellner
  • Patent number: 5147508
    Abstract: A suction box for use in drying a felt web in a papermaking machine has one or more cover members in contact with a surface of the felt web. The surface of at least one of these cover elements which normally contacts the felt web has a leading portion which is feathered or inclined away from the surface of the felt web in the direction opposite the direction of motion of the felt web. This allows the felt web to come into contact with the cover member surface more gradually, which reduces wear on the felt.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: September 15, 1992
    Assignee: The Nash Engineering Company
    Inventor: Douglas F. Sweet
  • Patent number: 5135615
    Abstract: Device for measuring the condition of a felt (4) in a paper machine and for reconditioning it, comprising a measuring head (7) provided with a suction chamber (7b) and a measuring surface (7a) to be positioned against the surface of the felt (4) and provided with suction holes (15) leading into the suction chamber (7b); a suction conduit (17) leading out of the suction chamber (7b) and communicating with a vacuum source (9) for sucking air and water through the suction holes (15) from the felt (4) into the suction chamber (7b) and for discharging water and air from the suction chamber (7b); and measuring means (18) for measuring the vacuum pressure in the suction chamber (7b). In the reconditioning and measuring device according to the invention, the measuring head (7) comprises two suction conduits (16, 17) for sucking water and air, respectively.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: August 4, 1992
    Assignee: Tamfelt Oy Ab
    Inventor: Bo Rokman
  • Patent number: 5120401
    Abstract: The invention is related to a device in a paper machine for collecting the mist that is produced in the spraying of high-pressure water employed in the washing of a wire. The device includes an inlet duct extending across the wire width. The central axis of the device is at an oblique angle in relation to the direction of running of the wire. The device includes a jet guide in connection with an inlet opening of the inlet duct. The jet guide is connected to the frame by means of adjusting members and operates as an air closure and as a regulator of suction capacity. The position of the jet guide can be adjusted relative the surface plane of the wire by means of the adjusting member.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: June 9, 1992
    Assignee: Valmet Paper Machinery Inc.
    Inventors: Seppo Kiviranta, Tuomo Kari
  • Patent number: 5092961
    Abstract: An apparatus is disclosed for cleaning a porous cover of a press roll of a papermaking machine. The apparatus includes a hydrostatic bearing disposed adjacent to the porous cover, the bearing defining a concave surface for cooperating with porous cover. The bearing defines a fluid conveying passageway having a first and a second end. The first end of the passageway is connected to a source of pressurized fluid and the second end is in fluid communication with the concave surface such that in use of the apparatus, when the porous cover of the press roll rotates, the fluid passes through the passageway and along the concave surface and between the concave surface and the porous cover. The pressurized fluid flow inwardly through the porous cover for flushing contaminants lodged within the porous cover outwardly away from the porous cover thereby inhibiting the buildup of comtaminants on the external surface of the porous cover that would otherwise impair the water absorbing capabilities of the cover.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: March 3, 1992
    Assignee: Beloit Corporation
    Inventor: Samuel F. Keller
  • Patent number: 4975150
    Abstract: A method for preventing plugging of a suction roll of a paper machine is described, which includes showering sealing water having incorporated therein from 10 to 500 ppm by weight, based on the sealing water, of malic acid on an inner wall of a shell of the suction roll.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: December 4, 1990
    Assignee: Hakuto Chemical Co., Ltd.
    Inventors: Koji Yasuda, Yasuyuki Hirano
  • Patent number: 4912948
    Abstract: Treating flexible sheet material, including paper, using vacuum guides adjacent to short-dwell applicators intimately contacting the sheet, provides improved application of fluid treating composition, particularly at high speeds.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: April 3, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Russell L. Brown, Charles J. Cunningham
  • Patent number: 4880500
    Abstract: A papermaking machine is modified by replacing a conventional rotatable couch roll by a stationary couch device that still serves the essential functions of the roll, namely dewatering of the furnish carried by the web and modification of the direction of travel of the web to turn it down towards the main drive roll. This stationary device is made of an abrasion resistant ceramic material and has a member with a convexly curved upper surface on which the web slides. Water is sucked from the furnish by a vacuum applied through perforations in the member. The majority of these perforations preferably take the form of slots that extend obliquely to both the transverse extent of the machine and the direction of web travel. The arrangement permits easier and more effective maintenance of the vacuum than with a couch roll and more efficient dewatering, with no rewetting of the web or furnish when leaving the couch device.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: November 14, 1989
    Assignee: Eldridge, Visseau Incorporated
    Inventors: Gerald E. Eldridge, Gary A. Visseau
  • Patent number: 4811659
    Abstract: A roller press comprised of two opposed porous tubular sleeves which are forced together to form a nip by inner driven rollers. Liquid from a mixture fed through the nip is forced into the porous rollers and is transported by them to another circumferential location where the liquid is forced out by a compressed air stream. Filtration belts cover portions of the porous rollers in the areas of the nip.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: March 14, 1989
    Inventor: Roger A. Powell
  • Patent number: 4547266
    Abstract: Mechanism for automatically controlling and maintaining a selectively differentiated vacuum pressure in a vacuum head accommodating to the transverse width of a moving web passing relative thereto involving means for supplying air to the vacuum head at spaced points along the width and control means for detecting the need for an increase or decrease in the vacuum at the spaced points along the length and selectively charging more or less air to the vacuum head at the corresponding points along the length.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: October 15, 1985
    Assignee: Sandy Hill Corporation
    Inventors: Martin B. Keller, Roger A. Ahrens
  • Patent number: 4447924
    Abstract: A moisture control system is provided for controlling the amount of chemical added to a fabric. The system includes a suction pipe having a slot therein and a fabric positioned to pass over the slot. A vacuum source is connected through conduit means to the suction pipe. A source of liquid is provided including a predetermined percentage of chemical therein to be added to the fabric. Liquid from the liquid source is added to the fabric and the fabric containing the liquid from the liquid source is advanced over the suction pipe whereupon vacuum is applied to the fabric to deliquefy it. The vacuum source is set to provide a predetermined vacuum depending on the chemical concentration of the liquid and the composition of the fabric. As the fabric passes over the slot a change in the vacuum is sensed and the vacuum source is actuated to retain the vacuum to the predetermined condition thereby maintaining a constant moisture level and amount of added chemical in the fabric.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: May 15, 1984
    Assignee: Albany International Corp.
    Inventors: Joseph A. Bolton, George R. Feehery
  • Patent number: 4398997
    Abstract: An extended press mechanism for removing liquid from a traveling fibrous web including a press nip formed between first and second members with one of the members being a traveling flexible impervious belt and force means engaging the inner surface of the belt including a sliding shoe facing the belt with the shoe extending transversely across the belt usually of a width less than the belt and also extending in the direction of the belt travel to form an elongated press nip with means for pressing the shoe toward the belt with a predetermined force, means for providing a film of lubricating fluid between the shoe and the belt and means for removing the excess of lubricating fluid downstream from the shoe including a wiper blade extending toward the belt flexed against the belt to wipe off the lubricant with means to remove the lubricant which is wiped off and means at the side of the shoe to wipe lubricant off the uncompressed portion of the belt and means such as ribs and grooves at the edge of the belt to p
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: August 16, 1983
    Assignee: Beloit Corporation
    Inventor: Dennis C. Cronin
  • Patent number: 4308096
    Abstract: An extended press mechanism for removing liquid from a traveling fibrous web including a press nip formed between first and second members with one of the members being a traveling flexible impervious belt and force means engaging the inner surface of the belt including a sliding shoe facing the belt with the shoe extending transversely across the belt usually of a width less than the belt and also extending in the direction of the belt travel to form an elongated press nip with means for pressing the shoe toward the belt with a predetermined force, means for providing a film of lubricating fluid between the shoe and the belt and means for removing the excess of lubricating fluid downstream from the shoe including a wiper blade extending toward the belt flexed against the belt to wipe off the lubricant with means to remove the lubricant which is wiped off and means at the side of the shoe to wipe lubricant off the uncompressed portion of the belt and means such as ribs and grooves at the edge of the belt to p
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: December 29, 1981
    Assignee: Beloit Corporation
    Inventor: Dennis C. Cronin
  • Patent number: 4308077
    Abstract: A constant flow felt dewatering system including first and second suction pipes with a slot in each pipe. A felt is positioned to pass over the slots of the first and second pipes. A centrifugal exhauster is connected by conduits to the first and second suction pipes. Drive structure is provided to operate the centrifugal exhauster and apply suction to the first and second suction pipes and to advance the felt over the pipes whereupon suction is applied thereto to dewater the felt. Controls are responsive to change in felt conditions to vary the dwell time of the felt with respect to the slots in order to maintain a substantially constant flow.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: December 29, 1981
    Assignee: Albany International Corp.
    Inventor: Joseph A. Bolton
  • Patent number: 4191611
    Abstract: An apparatus for cleaning an endless paper making felt continuously during the paper making process, and wherein the moving felt is passed through a cleaning bath, and ultrasonic vibrations are applied substantially uniformly across the entire width of the felt while the felt is immersed in the bath, to thereby achieve uniform cleaning of the felt and thus uniformity in the paper produced on the machine. The apparatus comprises an open, rectangular tank having a removable end wall, and a guide roll and ultrasonic transducers movably mounted in the tank, whereby the endless felt may be readily removed and/or replaced by removing the end wall, and lifting the guide roll and transducers, so that the felt may be slipped into the tank beneath the guide roll and transducers.
    Type: Grant
    Filed: September 1, 1978
    Date of Patent: March 4, 1980
    Inventors: John C. Rushing, William E. Smith, Henry L. King
  • Patent number: 4149930
    Abstract: An improvement in the method and apparatus for fabricating asbestos-cement boards, wherein a felt band coated with fiber fleece is fed to a pair of press rollers in nip relationship and wherein the coating of the felt band with fiber fleece is effected by wet deposition on the felt band and by suction from the side opposite same.The fiber fleece obtained by wet deposition on the felt band following the deposition is condensed and dehydrated by a system consisting of a sieve cylinder and of an associated suction roller operating in nip relationship.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: April 17, 1979
    Assignee: Fulgurltwerke Seelze und Eichriede in Luthe bel Hannover Adolf Oesterheld
    Inventors: Gunter Exner, Leon G. Rzepka
  • Patent number: 4011131
    Abstract: A suction box cover for a Fourdrinier papermaking machine includes a leading portion having a top surface which supports a travelling Fourdinier fabric. The leading portion has a channel across its length which includes a lower manifold region and an upwardly projecting throat region that opens upon the fabric supporting surface. A lubricating fluid is fed to the manifold region and flows upwardly through a series of orifices in a metering member retained within the channel to the fabric supporting surface to lubricate the fabric.
    Type: Grant
    Filed: August 6, 1975
    Date of Patent: March 8, 1977
    Assignee: Albany International Corporation
    Inventor: Charles B. Nicholson