US3781957A - Drum including annular grid structure - Google Patents

Drum including annular grid structure Download PDF

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Publication number
US3781957A
US3781957A US00289663A US3781957DA US3781957A US 3781957 A US3781957 A US 3781957A US 00289663 A US00289663 A US 00289663A US 3781957D A US3781957D A US 3781957DA US 3781957 A US3781957 A US 3781957A
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United States
Prior art keywords
spokes
grid structure
head plate
plate means
drum according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00289663A
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English (en)
Inventor
O Luthi
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Improved Machinery Inc
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Improved Machinery Inc
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • D21F5/182—Drying webs by hot air through perforated cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders

Definitions

  • ABSTRACT A drum comprising an annular grid structure which includes end portions formed only from coils of waved strip material and an intermediate portion formed from alternate coils of waved and planar strip material.
  • the head plates at the ends of the drum have 2 4 mm m 1 E2 1 9 .N 8 n 6 Ia un 2 m w w m "Hu "W02 1. u .r "Ha NS L hf C S U.mF H N 555 [56]
  • the present invention relates to annular honeycomb or grid structures such as, by way of specific example, the annular honeycomb drums employed by the pulp and paper making industry.
  • Drums of this general type are normally well suited for employment in the drying of paper webs due to their large percentage of circumferential open area and structural rigidity.
  • the paper web may be driven circumferentially around the grid structure beneath an overlying backing felt while air supplied at highly elevated temperature (for example, 700 to 900 Fahrenheit) is blown outwardly from the drum interior through the grid structure and the thereupon paper web and backing felt.
  • highly elevated temperature for example, 700 to 900 Fahrenheit
  • one or more cooling showers are provided for automatically directing cooling liquid (for example, liquid at around 60 Fahrenheit) onto the grid structure in the event of breakage of the paper web, thereby preventing the scorching of the backing felt which would otherwise occur upon the engagement of the felt with the grid structure after such breakage.
  • cooling liquid for example, liquid at around 60 Fahrenheit
  • the grid structure is suddenly cooled from around 700 Fahrenheit by the cooling liquid, it being understood that a rapid cooling of the grid structure from 700 Fahrenheit to 60 Fahrenheit would cause a V2 inch reduction in an 84 inch diameter grid structure.
  • the drum head plates remain at full operating temperature for a period of time, thereby causing distortion of the grid structure and resulting in such severe bending and yielding adjacent the juncture or the head plates and grid structure as will eventually result in premature drum failure.
  • the stiffening spokes extending along the head plates cool to provide a further source of distortion and premature failure.
  • the paper web alternatively may be driven around the grid structure beneath an overlying driven wire while air supplied at the beforementioned highly elevated temperature is blown inwardly through the wire, web and grid structure and thence discharged into the interior of the drum at a greatly reduced temperature (for example, around 200 Fahrenheit). ln this arrangement, upon breakage of the paper web, the grid structure will be suddenly exposed to air at a temperature much higher than 200 Fahrenheit, thereby causing problems similar to those arising upon the beforedescribed rapid cooling of the grid structure.
  • a greatly reduced temperature for example, around 200 Fahrenheit
  • An object of the present invention is to provide a new and improved drum including annular grid structure, which drum is particularly constructed and arranged to withstand temperature fluctuations of even several hundred degrees without undue distortion, yielding or failure.
  • Another object of the invention is to provide a new and improved drum including annular grid structure, which drum is particularly constructed and arranged to accommodate differential expansion and contraction of its component parts.
  • Another object is to provide a new and improved drum including annular grid structure, which drum is particularly constructed and arranged to permit relative expansion and contraction of the head plates and therewith associated stiffening spokes or ribs.
  • Another object is to provide a drum including a new and improved annular grid structure.
  • a drum may comprise an annular grid structure including juxtaposed, laterally interconnected strip means, such strip means for at least one portion of the grid structure comprising only waved strip means and such strip means for another portion of the grid structure comprising both waved and planar strip means
  • a drum may comprise head plate means adjacent at least one end of the grid structure, stiffening means extending along such head plate means, and means interconnecting the head plate means and stiffening means permitting relative movement thereof to accommodate differential expansion and contraction of the head plate means and stiffening means.
  • FIG. 1 is a view schematically illustrating a drum constructed in accordance with one embodiment of the invention
  • FIG. 2 is an enlarged, fragmentary perspective view of the drum shown in FIG. 1;
  • FIG. 3 is a further enlarged, fragmentary, elevational view showing one of the end portions of the grid structure of the drum;
  • FIG. 4 is an enlarged elevational view showing one of the drum head plates and the therewith associated stiffening spokes;
  • FIG. 5 is an enlarged, fragmentary, sectional view taken on line 5-5 of FIG. 4, looking in the direction of the arrows;
  • FIG. 6 is an enlarged, fragmentary, sectional view taken on line 66 of HO. 5, looking in the direction of the arrows;
  • FIG. 7 is an enlarged, fragmentary, sectional view taken on line 77 of FIG. 5, looking in the direction of the arrows.
  • the illustrated drum comprises an annular, cylindrical, honeycomb or grid structure 10 which includes circumferential end portions, each designated generally as 12, and a circumferential intermediate portion 14 between and unitary with the end portions 12.
  • the relative lengths of the end portions 12 and intermediate portion 14 axially of the grid structure 10 are, of course, variable in different embodiments of the grid structure 10.
  • the length of each end portion 12 is preferably only a relatively small portion of the overall length of the grid structure 10. For example, in a grid structure 10 approximately nine feet in length each end portion 12 might be of around six inch length with the intermediate portion 14 forming the remaining approximately eight foot length of the grid structure 10.
  • the end portions 12 are of identical construction and each comprise only sheet metal, waved or non-planar strip material 16 helically wound to longitudinally extend circumferentially of the grid structure 10 with juxtaposed coils of the waved strip material 16 directly laterally interconnected.
  • the waved strip material 16 is arranged with its greatest transverse or widthwise dimension at least generally radially of the grid structure and the juxtaposed interconnected coils of the wave strip material 16 cooperate to therebetween define openings 18 at least generally radially through the thickness of the grid structure 10.
  • the waved strip material 16, per se may be of any suitable waved or nonplanar configuration and advantageously, as illustrated, is of the construction described in United States Patent Application Ser. No.
  • the waved strip material 16 includes alternating generally diagonal segments 20 and connecting segments 22, the diagonal segments 20 extending across the central plane of the waved strip material 16 and adjacent ones of the connecting segments 22 being on opposite sides of such central plane.
  • the connecting segments 22 are formed of arcuate, generally sharp or pointed configuration and each cooperate with the diagonal segments 20 on opposite sides thereof to define a generally V- shaped portion of the waved strip material 16.
  • the connecting segments 22 hence bound the at least generally pointed apexes of such generally V-shaped portions and are each provided with one or more enlarged sections 24 at which juxtaposed coils of the waved strip material 16 are interconnected, such as by welding.
  • the intermediate portion 14 of the grid structure 10 includes both the beforedescribed waved strip material 16 and also sheet metal planar strip material 26.
  • the waved and planar strip materials 16,26 are helically wound to longitudinally extend conferentially of the grid structure 10 in alternate arrangement throughout the length of the intermediate portion 14 and rigidly interconnected (for example, by welding) at the enlarged portions 24 ofthe connecting segments 22 of the waved strip material 16.
  • the alternately arranged strip materials 16,26 are disposed with their greatest transverse or widthwise dimensions at least generally radially of the grid structure 10 and cooperate to therebetween define additional openings 18 at least generally radially through the thickness of the grid structure 10.
  • the intermediate portion 14 throughout its length includes alternate coils of the strip materials l6,26,juxtaposed ones of which coils are rigidly laterally interconnected at intervals; and, as will be understood, the end coils of the intermediate portion 14 are each similarly rigidly connected at intervals to the juxtaposed end coil of the thereadjacent end portion 12.
  • each supporting means 28 which includes a generally radially extending wall 32 to which the end coil 30 of the respective, adjacent end portion 12 is affixed, preferably by welding, at the enlarged portions 24.
  • Each supporting means 28, moreover, includes a supporting ring or annular plate 34, unitary with wall 32, which has an outer diameter generally the same as that of the grid structure l0.
  • Each end ofthe drum includes an annular head plate 36 which may, as illustrated, close the corresponding end of the grid structure 10.
  • Each head plate 36 is along its outer circumference affixed to the supporting ring 34 of the thereadjacent supporting means 28, and
  • a hub or hub structure designated generally as 38, which comprises a plurality of annular hub elements 40, 42, 44, and 46.
  • Each annular hub element 44 is welded or otherwise directly affixed to the inner circumference of the corresponding head plate 36 and rigidly carries an annular hub element 42, projecting internally of the drum coaxial with the grid structure 10 which rigidly carries a hub element 46.
  • Each hub element 44 moreover, is affixed to a hub element 40, such as by a plurality of bolts 48, the hub element 40, in turn, being provided with generally radial ribs 40a and carrying a stub shaft 50 adapted to rotatably mount the corresponding end of the drum.
  • a plurality of stiffening spokes or ribs 52 are arranged to extend along each of the head plates 36 internally of the drum for providing the necessary stiffness to the head plates 36. More particularly, as shown in FIGS. 4 and 5, the spokes 52 are each arranged to longitudinally extend generally radially of the grid structure l0 and drum head plate 36 and have inner ends 54 generally centrally thereof affixed, such as by welding, to the hub elements 42, 44, 46 whereby the inner end 54 of each spoke 52 is rigidly interconnected through a hub structure 38 to the inner end of the corresponding head plate 36.
  • the outer ends 56 of the spokes 52 are generally adjacent the inner circumference of the grid structure 10, but sufficiently inwardly spaced from the thereadjacent supporting means 28 to permit longitudinal expansion of the spokes 52 generally radially of the grid structure 10.
  • the outer ends 56 of the spokes 52 moreover, each carry a connecting bracket 58 which on opposite sides of the spoke 52 includes openings 60 aligned with corresponding openings 62,64 through a boss 66 affixed to the head plate 36 and the head plate 36, respectively.
  • the openings 60 as shown in FIGS.
  • FIG. 5 and 6 are each constructed of substantially larger diameter than the aligned openings 62,64; and mounting bolts 68 are inserted through the aligned sets of the openings 60, 62, 64 to connect the outer ends of the spokes 52 to the head plates 36.
  • the portions 70 of the bolts 68 received in the openings 60 are of substantially smaller diameter than the openings 60, thereby permitting limited relative movement of the head plates 36 and the spokes 52 generally radially of the grid structure 10 to accommodate differential expansion and contraction of the head plates 36 and spokes 52 generally radially of the grid structure 10.
  • each spoke 52 rigidly carries a connecting plate 72, such connecting plate 72 and cooperative connecting elements 74 serving to insure that the spoke 52 properly extends along the head plate 36 while permitting differential expansion and contraction of the head plate 36 and spoke 52 generally radially of the grid structure 10.
  • a suitable lubricant is interposed intermediate each connected boss 66 and connecting bracket 58.
  • the invention provides new and improved means for accomplishing all of thezbeforestatedzobjects and advantages.
  • the described arrangement and interconnectionof the spokes '52and head plates 36 enables differential-expansion.and contraction thereof generally radially of thegrid structure 10, thereby avoiding;the distortion, bendingand'yielding problems which would be inherent were the spokes 52 merely rigidly connected to the head plates 36.
  • the end portions 12 of the grid structure 10, comprising onlywavedstrip material 16 are extremely strong in3transmitting shear load circumferentially of the grid structure and, as the endsof the grid structure 10 are'held round by the supporting means 28 and head plates 36, ovate or egg-shaped de- .flection of the ends of the grid structure 10 is prevented; the bendingmoment on the grid structure 10 is, of course, inherently rather small at its ends.
  • a drum comprising an annular grid structure including juxtaposed, laterally interconnected strip means, said strip means for at least one portion of said grid structure comprising only waved strip means, and said strip means for another portion of said grid structure comprising both waved and planar strip means.
  • a drum according to claim 1 further comprising head plate means adjacent at least one of the ends of said grid structure, stiffening means extending along said head plate means for stiffening said head plate means, and means interconnecting said head plate means and said stiffening means permitting relative movement thereof to accommodate differenting expansion and contraction of said head plate means and said stiffening means.
  • a drum according to claim 5, wherein said stiffening means comprises spoke means extending generally radially of said grid structure.
  • said interconnecting means comprises an opening associated with one of said head plate means and stiffening means, and a retainer having a portion in said opening, said retainer portion being of substantially smaller crosssection than said opening.
  • a drum according to claim 8 further comprising head plate means adjacent at least one of the ends of said grid structure, a plurality of spokes extending generally radially of said grid structure along said head plate means for stiffening said head plate means, and means interconnecting said head plate means and said spokes permitting relative movement thereof generally radially of said grid structure to accommodate differential expansion and contraction of said head plate means and said spokes generally radially of said grid structure.
  • a drum according to claim 9, wherein said means interconnecting said head plate means and said spokes comprises an opening associated with one thereof and a retainer having a portion in said opening, said retainer portion being of substantially smaller crosssection than said opening.
  • a drum according to claim 11, comprising said head means, spokes and interconnecting means at both of its ends.
  • a drum comprising an annular grid structure including interconnected strip means, head plate means extending transversely of said grid structure adjacent one end thereof, a plurality of spokes extending generally radially of said grid structure along said head plate means for stiffening said head plate means, and means interconnecting said spokes and said head plate means permitting relative movement thereof generally radially of said grid structure for accommodating differential expansion and contraction of said head plate means and said spokes in said generally radial direction.
  • a drum according to claim 14, wherein said interconnecting means comprises an opening associated with one of said head plate means and said spokes, and a retainer having a portion in said opening, said retainer portion being of substantially smaller crosssection than said opening.
  • a drum according to claim 16 comprising means rigidly interconnecting said inner ends of said spokes with said head plate means, and connecting means connecting said spokes with said head plate means at locations spaced longitudinally of said spokes intermediate their ends, and connecting means permitting relative movement of said spokes and said head plate means generally radially of said grid structure, the portions of the lengths of said spokes intermediate their said connections to said head plate means being free of fixed connection to said head plate means.
  • each of said spokes and said second spokes has an inner end generally centrally of said grid structure and an outer end adjacent the inner circumference of said grid structure, such outer ends of the spokes are spaced from thereadjacent structure to permit expansion of the spokes generally radially of said grid structure, and the spokes are connected adjacent their outer ends by the respective interconnecting means to their respective adjacent one of said head plate means.
  • a drum according to claim 20 further comprising hub means rigidly interconnecting said inner ends of each of the spokes with the respective adjacent one of said head plate means, and connecting means connecting each of the spokes with such head plate means at locations spaced longitudinally of said spokes intermediate their ends, said connecting means permitting relative movement of the connected spokes and head plate means generally radially of said grid structure.
  • each spoke is connected adjacent its outer end to the respective adjacent one of said head plate means by an opening associated with one of said head plate means and said spokes, and a retainer having a portion in said opening, said retainer portion being substantially smaller in cross-section than said opening.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Drying Of Solid Materials (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
US00289663A 1972-09-15 1972-09-15 Drum including annular grid structure Expired - Lifetime US3781957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28966372A 1972-09-15 1972-09-15

Publications (1)

Publication Number Publication Date
US3781957A true US3781957A (en) 1974-01-01

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US00289663A Expired - Lifetime US3781957A (en) 1972-09-15 1972-09-15 Drum including annular grid structure

Country Status (8)

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US (1) US3781957A (OSRAM)
JP (1) JPS5633519B2 (OSRAM)
BR (1) BR7306958D0 (OSRAM)
CA (1) CA1020743A (OSRAM)
DE (1) DE2342421C3 (OSRAM)
FI (1) FI62154C (OSRAM)
GB (1) GB1426765A (OSRAM)
SE (2) SE404211B (OSRAM)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106980A (en) * 1977-05-11 1978-08-15 The Black Clawson Company Thickener apparatus including a shaftless cylinder mold
FR2399504A1 (fr) * 1977-08-02 1979-03-02 Ingersoll Rand Co Cylindre pour secherie de papier
DE3316657A1 (de) * 1983-05-06 1984-11-08 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
EP0841424A1 (de) * 1996-11-11 1998-05-13 Fleissner GmbH & Co. Maschinenfabrik Vorrichtung zum hydrodynamischen Vernadeln von Vliesen, Tissue od. dgl.
US20030131454A1 (en) * 2002-01-15 2003-07-17 Frederic Noelle Machine for producing a patterned textile product and nonwoven product thus obtained
EP1411167A1 (de) 2002-10-14 2004-04-21 Andritz AG Vorrichtung zum kontinuierlichen Trocknen einer Faserstoffbahn
WO2004087402A1 (en) * 2003-03-28 2004-10-14 The Procter & Gamble Company Forming structure for embossing and debossing polymeric webs
US20050115036A1 (en) * 2002-04-12 2005-06-02 Frederic Noelle Drum for a production unit for a non-woven material, method for production of a non-woven material and non-woven material obtained thus
US20050283994A1 (en) * 2004-06-28 2005-12-29 Wilhelm Mausser Device for continuous drying of a pulp web
US20080066275A1 (en) * 2005-02-18 2008-03-20 Ullrich Munstermann Apparatus for Patterning and Stabilizing a Workpiece Web by Use of an Replaceable Patterning Shell
US8656605B2 (en) 2010-07-28 2014-02-25 Metso Paper Usa, Inc. System and method for thermal gradient control in thin shell structures
US10066340B2 (en) * 2013-07-05 2018-09-04 Voith Patent Gmbh Drying roller and a method for the production of same
CN108729536A (zh) * 2018-06-25 2018-11-02 常州市排水管理处 一种排水管道格栅及系统
CN111364275A (zh) * 2020-03-18 2020-07-03 安徽福仕达网带有限公司 一种浪形滤网的加工方法
US11788220B2 (en) * 2018-08-13 2023-10-17 TRüTZSCHLER GMBH & CO. KG Apparatus for compacting and/or structuring a nonwoven, and a structural shell

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2171361C (en) * 1995-03-29 1999-03-30 Christian Wimmar Schmitz Calender roller
DE19533823C2 (de) * 1995-03-29 2002-05-23 Voith Paper Patent Gmbh Kalanderwalze
DE19511595C2 (de) * 1995-03-29 1997-04-24 Voith Sulzer Finishing Gmbh Kalanderwalze mit einem zylindrischen Basiskörper
DE102018108944A1 (de) * 2018-04-16 2019-10-17 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung zum thermischen Behandeln einer textilen Warenbahn

Citations (8)

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US2149649A (en) * 1935-08-16 1939-03-07 Eastwood Nealley Corp Covering for dandy rolls, cylindrical molds, or the like for use in paper making machines
US3016315A (en) * 1958-10-08 1962-01-09 Carl D Hall Jr Honeycomb structure and method
US3100928A (en) * 1960-09-15 1963-08-20 Metal Tech Inc Honeycomb openwork
US3259961A (en) * 1964-12-21 1966-07-12 Metal Tech Inc Cylindrical honeycomb roll
US3445905A (en) * 1966-08-31 1969-05-27 H M Spencer Inc Dandy roll
US3453712A (en) * 1966-08-29 1969-07-08 Procter & Gamble Method of making a porous roll
US3564686A (en) * 1968-03-01 1971-02-23 Metal Tech Inc Helical pattern,bent node honeycomb roll
US3590453A (en) * 1968-06-19 1971-07-06 Metal Tech Inc Honeycomb roll

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303576A (en) * 1965-05-28 1967-02-14 Procter & Gamble Apparatus for drying porous paper
DE1942549B2 (de) * 1969-08-21 1977-10-20 Deutsche Babcock AG, 4200 Oberhauseii Drehbare rohrtrommel mit daran gehaltertem zahnkranz

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149649A (en) * 1935-08-16 1939-03-07 Eastwood Nealley Corp Covering for dandy rolls, cylindrical molds, or the like for use in paper making machines
US3016315A (en) * 1958-10-08 1962-01-09 Carl D Hall Jr Honeycomb structure and method
US3100928A (en) * 1960-09-15 1963-08-20 Metal Tech Inc Honeycomb openwork
US3259961A (en) * 1964-12-21 1966-07-12 Metal Tech Inc Cylindrical honeycomb roll
US3453712A (en) * 1966-08-29 1969-07-08 Procter & Gamble Method of making a porous roll
US3445905A (en) * 1966-08-31 1969-05-27 H M Spencer Inc Dandy roll
US3564686A (en) * 1968-03-01 1971-02-23 Metal Tech Inc Helical pattern,bent node honeycomb roll
US3590453A (en) * 1968-06-19 1971-07-06 Metal Tech Inc Honeycomb roll

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106980A (en) * 1977-05-11 1978-08-15 The Black Clawson Company Thickener apparatus including a shaftless cylinder mold
FR2399504A1 (fr) * 1977-08-02 1979-03-02 Ingersoll Rand Co Cylindre pour secherie de papier
DE3316657A1 (de) * 1983-05-06 1984-11-08 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
US6055710A (en) * 1996-11-11 2000-05-02 Fleissner Gmbh & Co. Maschinenfabrik Device for hydrodynamic needling of fleeces, tissues, or the like
EP0841424A1 (de) * 1996-11-11 1998-05-13 Fleissner GmbH & Co. Maschinenfabrik Vorrichtung zum hydrodynamischen Vernadeln von Vliesen, Tissue od. dgl.
US20030131454A1 (en) * 2002-01-15 2003-07-17 Frederic Noelle Machine for producing a patterned textile product and nonwoven product thus obtained
US6865784B2 (en) * 2002-01-15 2005-03-15 Rieter Perfojet Machine for producing a patterned textile product and nonwoven product thus obtained
US20050095403A1 (en) * 2002-01-15 2005-05-05 Frederic Noelle Machine for producing a patterned textile product and nonwoven product thus obtained
US7758945B2 (en) 2002-01-15 2010-07-20 Rieter Perfojet Machine for producing a patterned textile product and nonwoven product thus obtained
US7350279B2 (en) * 2002-04-12 2008-04-01 Rieter Perfojet Drum for a production unit for a non-woven material, method for production of a non-woven material and non-woven material obtained thus
US20050115036A1 (en) * 2002-04-12 2005-06-02 Frederic Noelle Drum for a production unit for a non-woven material, method for production of a non-woven material and non-woven material obtained thus
US7500293B2 (en) 2002-04-12 2009-03-10 Rieter Perfojet Drum for a production unit for a non-woven material, method for production of a non-woven material and non-woven material obtained thus
US20080066274A1 (en) * 2002-04-12 2008-03-20 Rieter Perfojet Drum for a production unit for a non-woven material, method for production of a non-woven material and non-woven material obtained thus
EP1411167A1 (de) 2002-10-14 2004-04-21 Andritz AG Vorrichtung zum kontinuierlichen Trocknen einer Faserstoffbahn
US20040128855A1 (en) * 2002-10-14 2004-07-08 Franz Haider Device for continuous drying of a pulp sheet
US7060163B2 (en) * 2002-10-14 2006-06-13 Andritz Ag Device for continuous drying of a pulp sheet
WO2004087402A1 (en) * 2003-03-28 2004-10-14 The Procter & Gamble Company Forming structure for embossing and debossing polymeric webs
CN100526054C (zh) * 2003-03-28 2009-08-12 宝洁公司 用于压花和凹纹聚合纤维网的成形结构
EP1612328B2 (de) † 2004-06-28 2010-09-22 Andritz AG Vorrichtung zum kontinuierlichen Trocknen einer Faserstoffbahn
US7690131B2 (en) * 2004-06-28 2010-04-06 Andritz Ag Device for continuous drying of a pulp web
AU2005202714B2 (en) * 2004-06-28 2010-04-15 Andritz Ag Device for continuous drying of a pulp web
US20050283994A1 (en) * 2004-06-28 2005-12-29 Wilhelm Mausser Device for continuous drying of a pulp web
US20080066275A1 (en) * 2005-02-18 2008-03-20 Ullrich Munstermann Apparatus for Patterning and Stabilizing a Workpiece Web by Use of an Replaceable Patterning Shell
US7448118B2 (en) * 2005-02-18 2008-11-11 Fleissner Gmbh Apparatus for patterning and stabilizing a workpiece web by use of an replaceable patterning shell
US8656605B2 (en) 2010-07-28 2014-02-25 Metso Paper Usa, Inc. System and method for thermal gradient control in thin shell structures
US10066340B2 (en) * 2013-07-05 2018-09-04 Voith Patent Gmbh Drying roller and a method for the production of same
US10676866B2 (en) 2013-07-05 2020-06-09 Voith Patent Gmbh Drying roller and a method for manufacturing the same
CN108729536A (zh) * 2018-06-25 2018-11-02 常州市排水管理处 一种排水管道格栅及系统
CN108729536B (zh) * 2018-06-25 2024-05-17 常州市排水管理处 一种排水管道格栅及系统
US11788220B2 (en) * 2018-08-13 2023-10-17 TRüTZSCHLER GMBH & CO. KG Apparatus for compacting and/or structuring a nonwoven, and a structural shell
CN111364275A (zh) * 2020-03-18 2020-07-03 安徽福仕达网带有限公司 一种浪形滤网的加工方法
CN111364275B (zh) * 2020-03-18 2022-03-22 安徽福仕达网带有限公司 一种浪形滤网的加工方法

Also Published As

Publication number Publication date
FI62154C (fi) 1982-11-10
FI62154B (fi) 1982-07-30
CA1020743A (en) 1977-11-15
GB1426765A (en) 1976-03-03
BR7306958D0 (pt) 1974-07-18
DE2342421B2 (de) 1981-04-09
SE404211B (sv) 1978-09-25
JPS4962708A (OSRAM) 1974-06-18
DE2342421C3 (de) 1981-11-26
DE2342421A1 (de) 1974-03-21
SE7610061L (sv) 1976-09-10
JPS5633519B2 (OSRAM) 1981-08-04

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