US3783097A - Hydrodynamically loaded web press with slipper bearing shoes - Google Patents

Hydrodynamically loaded web press with slipper bearing shoes Download PDF

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Publication number
US3783097A
US3783097A US00258103A US3783097DA US3783097A US 3783097 A US3783097 A US 3783097A US 00258103 A US00258103 A US 00258103A US 3783097D A US3783097D A US 3783097DA US 3783097 A US3783097 A US 3783097A
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United States
Prior art keywords
belt
shoes
roll
web
press
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Expired - Lifetime
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US00258103A
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English (en)
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E Justus
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Beloit Corp
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Beloit Corp
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/241—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band co-operating with a drum or roller

Definitions

  • a press mechanism for removing liquid from a traveling fibrous web such as a web of paper received from the fourdrinier section of a paper machine including a backing roll and a looped traveling belt forming a press nip with the roll with a plurality of shaped shoes extending the length of the roll and pressing the belt toward the nip with said shoes having a concave curved surface facing the belt and being pivotally supported so that a wedge of lubricating fluid builds up between each of the shoes and the belt to lubricate the shoes and to press the belt toward the nip.
  • Means are provided for individually controlling the force with which the shoes are pressed toward the belt.
  • the invention relates to an improved extended nip press and more particularly to a pressing mechanism for extracting water from a traveling web which requires considerably less space and is capable of extracting more water from the web than has been heretofore possible with conventional press couples.
  • the present invention provides a pressing arrangement having a plurality of nips wherein the residence time of the web in the nips is increased over that of a roll couple and wherein a mechanically more compact structure is used. Attempts have been made to provide presses which provide for a greater pressing time and reduce the space required by the press, but a number of these have encountered disadvantages, and the present structure provides advantages over structures heretofore available.
  • the features of the invention may be employed in the dewatering of other forms of webs than a paper web in a paper making machine.
  • a preferred embodiment of the invention will be described in the environment of a paper making machine which conventionally forms a web by depositing a slurry of pulp fibers on a traveling fourdrinier wire, transfers the web to a press section where the web passes through a number of press nips formed between roll couples, and the web then passes over a series of heated dryer drums and usually through a calender and then is wound on the roll.
  • the present structure forms the entire press section and takes the place of other forms of press sections heretofore available. Modifications can be made in the overall machine, as to the forming section, or the dryer section which can be accommodated by the instant invention.
  • the structure of the instant disclosure also may be employed in pressing webs of various synthetic fibers.
  • the present invention relates to improvements for the press sections of a paper making machine. Because of various inherent limitations in the operation of roll couples forming press nips for the press section in a conventional paper making machine, only a given amount of water can be removed in each nip and, therefore, in a conventional paper making machine, a series of nips are usually employed. It has been found impractical to attempt to remove a significant amount of additional water by increasing the number of press nips, although the further removal of water by pressing can greatly reduce the expense and size of the dryer section. It is estimated that if the water removed in the press section can be increased to decrease the moisture from 60 percent to 50 percent, the length of the dryer section can be reduced by /3.
  • a further object of the invention is to provide an im proved pressing mechanism for a press which counteracts the disadvantageous effects of friction and provides a press which has a uniquely long operating life.
  • Another object of the invention is to provide a press mechanism wherein pressures at stages along the nip are more easily controlled than in structures heretofore available.
  • Another object of the invention is to provide a press which avoids the disadvantages of excessive leakage and the difficulty of providing large sliding seals as contrasted with prior art liquid pressure presses.
  • FIG. 1 is a side elevational view shown in somewhat schematic form of a structure embodying the principles of the present invention.
  • FIG. 2 is a fragmentary sectional view taken substantially along line IIII of FIG. 1.
  • a backing roll 9 is wrapped with a looped belt 10 to form an extended pressing nip.
  • a continuous traveling web W is passed through the nip along with a felt F for receiving liquid 3 pressed from the web.
  • the belt is carried on rolls 11, 12, 13 and 14.
  • Pressure in the nip is obtained from a series of sliding shoes 16, 17 and 18 which may be termed slipper bearing shoes and which have a smooth lower surface extending across the belt coextensive therewith with the surface also extending in the direction of the belt travel to apply pressure to the belt which pressure is transmitted to the web.
  • Each of the shoes 16, 17 and 18 have a concave arcuately shaped lower surface with a relieved leading edge so as to form a wedge of lubricating fluid between them and the belt.
  • a supply line 19 is provided to keep fluid within a housing 20 which has sliding seals against the belt to prevent the escape of lubricant which could result in the contamination of the web.
  • Each of the shoes should have a radius of approximately the same as the roll and should be curved in such a direction so as to fit the roll. An objective is to get as much length of pressure as possible to form an extended pressing nip at each of the shoes.
  • the shoes are pivotally supported shown at 21, 27 and 30.
  • the shoes are somewhat flexible over their entire length and are backed by hydraulic fluid such as so that they exert a uniform pressure against the belt along their length thereby pressing water uniformly from the web along the length of the roll.
  • the pivotal supports 21, 27 may be in the form of a roll pin as shown in FIG. 2 which is supported from a piston 22 in a cylinder 23 containing a pressurized fluid.
  • the piston 22 is sufficiently flexible over its length so that with the fluid in the cylinder 23 being at uniform pressure along the length of the cylinder in accordance with Pascals law, the shoe 16 will exert uniform pressure along the length of the roll 9. This will occur even though the downward load on the roll 9 will cause downward bending thereof.
  • the support for each of the shoes is similar in construction and, therefore, only details for the first shoe 16 need be shown.
  • the shoe 17 has its roll pin 27 carried on a piston 28 supported in a cylinder 29.
  • Shoe 18 has its roll pin 30 supported on a piston 31 carried in a cylinder 32.
  • Each of the cylinders are supported in an overhead support beam 15. This beam will also bend upwardly with a pressure in the cylinders 23, 29 and 32, but this will not affect the application of uniform pressure by the shoes to the belt.
  • anti-deflection means may be provided for the roll to prevent excessive bending.
  • Such anti-deflection means may take various forms, and in one form the roll 9 W11 be a hollow roll shell with a stationary shaft extending therethrough. Fluid force transfer means will be located between the roll shell and the shaft to transfer the load from the shell to the shaft with the shaft bending downwardly relative to the roll shell, and the roll shell maintained substantially axially straight.
  • the fluid force transmission means may take various forms such as that shown in the Justus Pat. 3,119,324.
  • the web enters the nip it is subjected first to the pressure applied by the shoe 16, and then subsequently to the pressure supplied by the shoe 17 and thereafter by the pressure applied to the shoe 18.
  • Larger number of shoes may be provided.
  • the shoes may be controlled to give sequentially increasing pressures to the web by pressurizing the chambers 23, 29 and 32 with sequentially greater pressures.
  • the same fluid pressure may be applied to each of the chambers, but the chambers may be of increasing width, so that the total pres sure applied to the web through the shoes will increase.
  • controlled pressures may be applied.
  • the shoes are preferably of the same length, it is contemplated that different length shoes can be employed, such as by making the first shoe of longer length to obtain a reduced unit pressure in the first zone beneath the first shoe and successive increasing unit pressures in subsequent zones.
  • the pressure which is applied at the first shoe 16 is predetermined at a level so that maximum water removal will be attained without the hydraulic crushing of the web.
  • the pressure which is applied to the next shoe 17 can be higher since some of the water will have been removed at the first shoe. Similarly, the pressure at the third shoe 18 can be still higher.
  • the present arrangement also provides an advantage over conventional press nip in that the pressure is applied hydraulically, that is, by virtue of the layer of lubricating fluid which is built up between the shoe 16 and the belt 10.
  • This lubricating liquid has a pressure profile which builds up from the leading edge of the shoe and then drops off at the trailing edge of the shoe, but pressure extends along the full length of the shoe. This will result in improved application of pressure and improved water removal from the web as compared with the pressure profile which occurs to a web passing through the usual two roll press couple.
  • the need for web handling between subsequent press nips, as must be done in a conventional paper making machine employing the usual press couples is eliminated since the web is under complete control from one shoe to the next. This eliminates web vibration and possible tear and, of course, greatly reduce the space requirements of a press section.
  • the roll 9 may be an open roll with circumferential surface grooves across its length, or may be in the form of a suction roll.
  • the felt will be positioned against the roll and the web will be carried on top of the felt adjacent the belt.
  • a pair of parallel belts may be employed with similar shoes positioned within the lower belt in opposing relation to the upper shoes. This will eliminate the need for providing anti-deflection means for the lower roll, but because of the necessity of providing additional shoes and additional equipment, the illustrated arrangement is preferred.
  • a tension may be applied to the belt which will aid in the application of pressure to the web during its entire travel through the nip. This continuing pressure between the shoes may reduce rewetting, that is, return travel of the moisture from the felt to the web. It also may be desirable in some installation to utilize two felts with the web sandwiched therebetween, so that one felt passes against the belt and another felt passes against the outer surface of the roll 9. The belt 10 will travel due to its contact with the felt and the driving forces of the roll, or in some instances, a separate drive for the belt may be employed to drive it at substantially the speed of the outer surface of the roll 9.
  • a press mechanism for removing liquid from a traveling fibrous web comprising in combination,
  • one of said members being a traveling flexible impervious belt
  • force means engaging the outer surface of said belt including a sliding shoe having a smooth surface facing the belt with said surface extending transversely, across the belt and also extending in the direction of belt travel with means for pressing the shoe toward the belt with a predetermined force,
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 1 and including means for pivotally supporting said shoe about a pivotal axis extending transversely of the direction of belt travel.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 1 wherein the other of said members is the outer surface of a rotatable roll.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 1 and including a plurality of sequentially located additional shoes in engagement with the outer surface of the belt each similarly constructed and providing additional areas of pressure.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 4 wherein each of the shoes is provided with a pivotal support and has a relieved leading edge shaped to form a wedge of lubricant between the shoe and the belt, and the structure includes an enclosure for retaining lubricating fluid for the shoes and enclosing said shoes.
  • a press mechanism for removing liquid from a travel ing fibrous web constructed in accordance with claim 4 and including means for individually controlling the force applied to each of the shoes so sequentially increasing forces can be applied to the belt.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 4 wherein each of said shoes is provided with a fluid pressure means for forcing the shoe toward the belt.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 7 wherein said fluid pressure means includes a piston and 6 each of the cylinders for individually controlling the forces applied to the shoes to force them toward the belt.
  • a press mechanism for removing liquid from a traveling fibrius web comprising in combination,
  • a press mechanism for removing liquid from a traveling fibrous web comprising in combination,
  • one of said members being a traveling flexible impervious belt
  • the other of said members being a cylindrical roll with the belt wrapped over an arc of the roll
  • force means engaging the outer surface of said belt including a sliding shoe having a concave surface of substantially the radius of said roll extending transversely and also in the direction of belt travel with means for pressing the shoe toward the belt,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00258103A 1972-05-30 1972-05-30 Hydrodynamically loaded web press with slipper bearing shoes Expired - Lifetime US3783097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25810372A 1972-05-30 1972-05-30

Publications (1)

Publication Number Publication Date
US3783097A true US3783097A (en) 1974-01-01

Family

ID=22979108

Family Applications (2)

Application Number Title Priority Date Filing Date
US00258103A Expired - Lifetime US3783097A (en) 1972-05-30 1972-05-30 Hydrodynamically loaded web press with slipper bearing shoes
US05/833,808 Expired - Lifetime USRE30268E (en) 1972-05-30 1977-09-16 Hydrodynamically loaded web press with slipper bearing shoes

Family Applications After (1)

Application Number Title Priority Date Filing Date
US05/833,808 Expired - Lifetime USRE30268E (en) 1972-05-30 1977-09-16 Hydrodynamically loaded web press with slipper bearing shoes

Country Status (15)

Country Link
US (2) US3783097A (ja)
JP (1) JPS5257203Y2 (ja)
AR (1) AR198991A1 (ja)
AU (1) AU5593973A (ja)
BE (1) BE800176A (ja)
BR (1) BR7303950D0 (ja)
CA (1) CA969398A (ja)
DE (1) DE2326980B2 (ja)
ES (1) ES415043A1 (ja)
FR (1) FR2186573B1 (ja)
GB (1) GB1416769A (ja)
IT (1) IT987995B (ja)
NL (1) NL7307234A (ja)
SE (1) SE389521B (ja)
ZA (1) ZA733608B (ja)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943735A (en) * 1974-05-28 1976-03-16 Drabert Sohne Continuous decatizing machine
US3974026A (en) * 1973-03-01 1976-08-10 Escher Wyss G.M.B.H. Belt press with rotatable cylinder and adjustable pressure member
DE2935630A1 (de) * 1978-09-05 1980-03-20 Beloit Corp Weiterbildung einer feuchtpresse mit erweiterten pressflaechen
US4272317A (en) * 1979-11-01 1981-06-09 Beloit Corporation Roll bearing alignment
US4287021A (en) * 1979-08-27 1981-09-01 Beloit Corporation Extended nip press
US4308096A (en) * 1980-01-24 1981-12-29 Beloit Corporation Extended nip press
US4398997A (en) * 1980-01-24 1983-08-16 Beloit Corporation Extended nip press
DE3336462A1 (de) * 1982-10-14 1984-04-19 Valmet Oy, 00130 Helsinki Vorrichtung mit langer presszone zur pressbehandlung einer faserstoffbahn
US4468287A (en) * 1981-01-27 1984-08-28 Escher Wyss Gmbh Band press for a fiber web
DE3410172A1 (de) * 1983-03-23 1984-09-27 Valmet Oy, Helsinki Langspaltpresse einer papiermaschine
US4503765A (en) * 1982-02-17 1985-03-12 J. M. Voith Gmbh Press for the removal of moisture from wet webs of fiber material
US4556454A (en) * 1984-02-06 1985-12-03 Sulzer-Escher Wyss Gmbh Wet press for dewatering a web of material
US4661206A (en) * 1984-02-06 1987-04-28 Sulzer-Escher Wyss Gmbh Wet press for dewatering a material web with plural pressure pockets and unsymmetrical arrangement
US5043046A (en) * 1989-03-22 1991-08-27 Valmet Paper Machinery Inc. Extended nip-press
US5092962A (en) * 1989-03-30 1992-03-03 Valmet Paper Machinery Inc. Hot-pressing and drying device
US5163364A (en) * 1988-10-31 1992-11-17 Sulzer-Escher Wyss Gmbh Method for calendering a paper or cardboard web
US5500092A (en) * 1993-05-29 1996-03-19 J. M. Voith Gmbh Press unit of a paper machine for the manufacture of tissue paper
US5526739A (en) * 1993-09-22 1996-06-18 Corrugated Gear & Services Inc. Apparatus for applying variable pressure to a surface
US5611267A (en) * 1993-09-22 1997-03-18 Corrugated Gear & Services, Inc. Apparatus and method for applying variable pressure to a surface in corrugated paperboard manufacturing
US5709778A (en) * 1996-10-30 1998-01-20 Voith Sulzer Paper Technology North America, Inc. Multiple shoe press for a paper making machine
US5732622A (en) * 1997-01-24 1998-03-31 Corrugated Gear And Services Machine for manugacturing corrugated board
EP0890675A2 (en) * 1997-07-07 1999-01-13 Mitsubishi Heavy Industries, Ltd. Continuous drying apparatus for porous web
WO2005116333A1 (en) * 2004-05-26 2005-12-08 Metso Paper Karlstad Ab Press, method in a press and press element for a press
US20080078499A1 (en) * 2006-06-16 2008-04-03 Gkn Aerospace Services Structures Corp. Device for performing consolidation and method of use thereof
US9072291B2 (en) 2012-05-21 2015-07-07 Xeda International Method for producing a gas flow containing an essential oil vapour, method for treating a site with such a gas, and related device

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31923E (en) 1979-08-27 1985-06-25 Beloit Corporation Extended nip press
DE3030233C2 (de) * 1980-08-09 1988-10-20 J.M. Voith Gmbh, 7920 Heidenheim Naßpresse zum Entwässern von Faserbahnen
US4475453A (en) * 1981-02-17 1984-10-09 Envirotech Corporation Liquid-solid separation utilizing pressure rolls covered with elastomeric layers
FI820642L (fi) * 1981-04-30 1982-10-31 Beloit Corp Press med foerlaengt nyp
DE3126492C2 (de) * 1981-06-30 1983-10-20 Escher Wyss AG, Zürich Preßwalze
GB2106555B (en) * 1981-09-15 1985-10-02 Albany Int Corp Improvements relating to extended nip dewatering presses and to the manufacture of belts for use in such presses
IT1149356B (it) * 1981-09-24 1986-12-03 Albany Int Corp Pressa disidratatrice per macchina da carta e procedimento per la produzione della relativa cinghia continua
SE429723B (sv) * 1982-01-04 1983-09-26 Johnson Axel Eng Ab Forfarande och anordning for avvattning av en suspension, speciellt slam
MX158848A (es) * 1982-01-26 1989-03-17 Envirotech Corp Mejoras en metodo y aparato para la separacion liquido-solido de una mezcla humeda,mediante cilindros de presion con capas elastomericas
FI65103C (fi) * 1982-05-05 1984-03-12 Tampella Oy Ab Laongzonspress foer en pappersmaskin
DE3224007C2 (de) * 1982-06-26 1985-05-23 J.M. Voith Gmbh, 7920 Heidenheim Walzenpresse mit verlängertem Preßspalt
DE3317457A1 (de) * 1983-05-13 1984-11-15 J.M. Voith Gmbh, 7920 Heidenheim Presseinrichtung fuer bandfoermiges gut, insbesondere zum entwaessern einer papierbahn
FI91789C (fi) * 1989-12-21 1994-08-10 Tampella Oy Ab Paperikoneen pitkävyöhykepuristin
DE4116476C2 (de) * 1991-05-21 1994-09-22 Nordischer Maschinenbau Separiereinrichtung
US5120399A (en) * 1991-05-24 1992-06-09 Beloit Corporation Press section with inverted extended nip press and roll press
WO1999037854A1 (en) * 1998-01-27 1999-07-29 Beloit Technologies, Inc. A press apparatus
US6485612B1 (en) * 2001-05-18 2002-11-26 Voith Paper, Inc. Air press assembly for use in a paper-making machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281860A (en) * 1939-05-27 1942-05-05 Jean C Renault Continuous feed and pressure press
US2909804A (en) * 1955-09-16 1959-10-27 Perry G Means Continuous hot pressing machine for the manufacture of compressed boards
US3074764A (en) * 1959-12-03 1963-01-22 Martin William E Air track
US3293121A (en) * 1963-10-09 1966-12-20 Black Clawson Co Pneumatically pressurized paper wet press assembly
US3532050A (en) * 1968-08-14 1970-10-06 Improved Machinery Inc Press having fluid supported drive conveyor

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974026A (en) * 1973-03-01 1976-08-10 Escher Wyss G.M.B.H. Belt press with rotatable cylinder and adjustable pressure member
US3943735A (en) * 1974-05-28 1976-03-16 Drabert Sohne Continuous decatizing machine
DE2935630A1 (de) * 1978-09-05 1980-03-20 Beloit Corp Weiterbildung einer feuchtpresse mit erweiterten pressflaechen
US4201624A (en) * 1978-09-05 1980-05-06 Beloit Corporation Extended nip press
US4287021A (en) * 1979-08-27 1981-09-01 Beloit Corporation Extended nip press
US4272317A (en) * 1979-11-01 1981-06-09 Beloit Corporation Roll bearing alignment
US4308096A (en) * 1980-01-24 1981-12-29 Beloit Corporation Extended nip press
US4398997A (en) * 1980-01-24 1983-08-16 Beloit Corporation Extended nip press
US4468287A (en) * 1981-01-27 1984-08-28 Escher Wyss Gmbh Band press for a fiber web
US4503765A (en) * 1982-02-17 1985-03-12 J. M. Voith Gmbh Press for the removal of moisture from wet webs of fiber material
DE3336462A1 (de) * 1982-10-14 1984-04-19 Valmet Oy, 00130 Helsinki Vorrichtung mit langer presszone zur pressbehandlung einer faserstoffbahn
DE3410172C2 (de) * 1983-03-23 1995-11-09 Valmet Paper Machinery Inc Langspaltpresse einer Papiermaschine
DE3410172A1 (de) * 1983-03-23 1984-09-27 Valmet Oy, Helsinki Langspaltpresse einer papiermaschine
US4556454A (en) * 1984-02-06 1985-12-03 Sulzer-Escher Wyss Gmbh Wet press for dewatering a web of material
US4661206A (en) * 1984-02-06 1987-04-28 Sulzer-Escher Wyss Gmbh Wet press for dewatering a material web with plural pressure pockets and unsymmetrical arrangement
US5163364A (en) * 1988-10-31 1992-11-17 Sulzer-Escher Wyss Gmbh Method for calendering a paper or cardboard web
US5043046A (en) * 1989-03-22 1991-08-27 Valmet Paper Machinery Inc. Extended nip-press
US5092962A (en) * 1989-03-30 1992-03-03 Valmet Paper Machinery Inc. Hot-pressing and drying device
US5164047A (en) * 1989-03-30 1992-11-17 Valmet Paper Machinery Inc. Hot-pressing method
US5500092A (en) * 1993-05-29 1996-03-19 J. M. Voith Gmbh Press unit of a paper machine for the manufacture of tissue paper
US5711214A (en) * 1993-09-22 1998-01-27 Lauderbaugh; David M. Apparatus for dissipating moisture from an item
US5611267A (en) * 1993-09-22 1997-03-18 Corrugated Gear & Services, Inc. Apparatus and method for applying variable pressure to a surface in corrugated paperboard manufacturing
US5526739A (en) * 1993-09-22 1996-06-18 Corrugated Gear & Services Inc. Apparatus for applying variable pressure to a surface
US5791239A (en) * 1993-09-22 1998-08-11 Corrugated Gear & Services, Inc. Machine for manufacturing corrugated paperboard with independently controlled pressure applicators
WO1997020685A1 (en) * 1995-12-06 1997-06-12 Corrugated Gear & Services, Inc. Apparatus and method for applying variable pressure to a surface in corrugated paperboard manufacturing
AU692725B2 (en) * 1995-12-06 1998-06-11 Corrugated Gear & Services, Inc. Apparatus and method for applying variable pressure to a surface in corrugated paperboard manufacturing
US5709778A (en) * 1996-10-30 1998-01-20 Voith Sulzer Paper Technology North America, Inc. Multiple shoe press for a paper making machine
US5732622A (en) * 1997-01-24 1998-03-31 Corrugated Gear And Services Machine for manugacturing corrugated board
EP0890675A3 (en) * 1997-07-07 1999-07-07 Mitsubishi Heavy Industries, Ltd. Continuous drying apparatus for porous web
EP0890675A2 (en) * 1997-07-07 1999-01-13 Mitsubishi Heavy Industries, Ltd. Continuous drying apparatus for porous web
US6076275A (en) * 1997-07-07 2000-06-20 Mitsubishi Heavy Industries, Ltd. Continuous drying apparatus for porous web
WO2005116333A1 (en) * 2004-05-26 2005-12-08 Metso Paper Karlstad Ab Press, method in a press and press element for a press
US20080283208A1 (en) * 2004-05-26 2008-11-20 Metso Paper, Inc. Press, Method in a Press and Press Element for a Press
US7887675B2 (en) 2004-05-26 2011-02-15 Metso Paper, Inc. Press, method in a press and press element for a press
US20080078499A1 (en) * 2006-06-16 2008-04-03 Gkn Aerospace Services Structures Corp. Device for performing consolidation and method of use thereof
US8287266B2 (en) * 2006-06-16 2012-10-16 GKN Aerospace Services Structures, Corp. Device for performing consolidation and method of use thereof
US8603290B2 (en) 2006-06-16 2013-12-10 GKN Aerospace Services Structures, Corp. Device for performing consolidation and method of use thereof
US9072291B2 (en) 2012-05-21 2015-07-07 Xeda International Method for producing a gas flow containing an essential oil vapour, method for treating a site with such a gas, and related device

Also Published As

Publication number Publication date
DE2326980A1 (de) 1973-12-13
JPS5257203Y2 (ja) 1977-12-24
AR198991A1 (es) 1974-07-31
FR2186573B1 (ja) 1977-07-29
SE389521B (sv) 1976-11-08
ES415043A1 (es) 1976-02-01
NL7307234A (ja) 1973-12-04
JPS52108308U (ja) 1977-08-17
DE2326980B2 (de) 1979-10-18
BE800176A (fr) 1973-09-17
AU5593973A (en) 1974-11-21
USRE30268E (en) 1980-05-06
CA969398A (en) 1975-06-17
FR2186573A1 (ja) 1974-01-11
BR7303950D0 (pt) 1974-05-16
IT987995B (it) 1975-03-20
GB1416769A (en) 1975-12-03
ZA733608B (en) 1974-04-24

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