US3900659A - Woven cloth seam - Google Patents

Woven cloth seam Download PDF

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Publication number
US3900659A
US3900659A US39844473A US3900659A US 3900659 A US3900659 A US 3900659A US 39844473 A US39844473 A US 39844473A US 3900659 A US3900659 A US 3900659A
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United States
Prior art keywords
warp
area
strands
weftless
cloth
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Expired - Lifetime
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English (en)
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Donald George Macbean
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Jwi Ltd
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Jwi Ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0054—Seams thereof
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/904—Paper making and fiber liberation with specified seam structure of papermaking belt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249923—Including interlaminar mechanical fastener

Definitions

  • This invention relates to a seam for joining together the ends of sheets of woven cloth, and especially cloth woven of synthetic materials.
  • a woven cloth comprises warp strands in the longitudinal direction thereof and interwoven weft strands.
  • the weft strands are either removed from or not woven into areas adjacent each end of the cloth, the unwefted areas being separated from the ends of the cloth by first and second areas in which the weft strands remain.
  • the unwefted areas are separated from each other by a third wefted area which comprises the main body of the cloth.
  • the unwefted warp strands are crimped, some in an upward and some in a downward direction, and the crimped warp strands are intermeshed.
  • the crimps are adjacent one another along the width of the cloth so that the crimps co-operate to form a cylindrical-like opening along the width of the cloth, and a pintle pin, or a hinge, is inserted into the opening to thereby fasten one end of the cloth to the other end.
  • the seam is especially useful to join the two ends of woven cloth fabrics used in paper making machines such as cylinder covers and Fourdrinier wires.
  • SHEET 1 [1F 3 WOVEN CLOTH SEAM BACKGROUND OF THE INVENTION invention relates to a seam for joining together sheets of cloth woven from a synthetic material.
  • the inventive seam is particularly useful for joining opposing ends of a sheet of woven cloth to thereby form an endless loop of the woven cloth.
  • the seams of the invention are useful for woven filter covers, usually referred to as cylinder covers, which are applied to cylinder molds used in the preparation of stock for paper making machines. It is especially useful when the covers are woven from synthetic strands which may shrink onto the cylinder, usually by heat treatment.
  • the seam may be used for joining the ends of woven fabric base material of a needled press felt of the type which is used in the press section of a paper making machine. Further, the seam can be used to join the ends of woven fabric conveyor belts, as well as the ends of a woven cloth Fourdrinier wire used in paper making machines.
  • the seam is useful having regard to woven cloth whose warp and weft strands comprise synthetic or metal or a combination of the above materials.
  • the loop forming rods are withdrawn from the preprepared ends of the cloth, the loops at one end are intermeshed with the loops at the other end and a pintle pin is inserted to form a hinge type joint.
  • Another method of joining the ends of a cylinder cover is to simply sew the ends together by stitching through the reinforcing stitchings with a slightly larger thread.
  • a conveyor belt or the base fabric of a press felt may be seamed with a simple joint where the ends of cloth are folded back, lapped and sewn together, but this method invariably produces a gross lump and complete mesh blockage at the joint.
  • the present invention minimizes or overcomes the objectionable features of the above types of seams in a novel manner as described below.
  • a seam for joining together the two ends of a woven cloth comprising a plurality of warp strands in side-byside relationship along the width of the cloth, each said warp strand extending in the lengthwise direction of the cloth, a first area of warp adjacent one end of the cloth and formed by said warp strands with interwoven weft strands, a second area of warp adjacent the other end of the cloth formed by said warp strands with interwoven weft strands, a third area of warp interposed between said first and second set and formed by said warp strands along the length thereof with interwoven weft strands, selected first warp strands of said first area being joined with corresponding warp strands of said third area by a weftless continuation of said first warp strands, selected second warp strands of said second area being joined to corresponding warps of said third area by a weftless continuation of said second warp strands, comprising
  • the coupling means comprises a hinge or pintle pin.
  • the invention also relates to a method for making the seam.
  • the principle of this method ofjoining the ends of cloth may be applied to different types of weaves. For example, plain, twill, 3-and-l twill, satin weave and Duplex weave may be joined successfully.
  • the method is particularly useful in cases where a cloth sleeve is formed that is to be applied over a cylindrical filter, each as a cylinder mold, upon which it may be shrunk by heat, or any other suitable treatment, to form a tight fit.
  • FIG. 1 is a side view of the cloth in the first stage of the production of the inventive seam
  • FIG. 2 is a side view of the cloth in the second stage of the production of the inventive seam
  • FIG. 3 is a side view of the cloth in the third stage of the production of the inventive seam
  • FIG. 4 is a side view of the cloth in the fourth stage of the production of the inventive seam
  • FIG. 5 is a side view of the cloth in the fifth stage of the production of the inventive seam
  • FIG. 6 is a side view of the end product of the above production steps
  • FIG. 7 illustrates a side view of a further embodiment of the invention
  • FIG. 8 shows a side view of a third embodiment of the invention.
  • FIG. 9 illustrates a side view of a still further embodiment of the invention.
  • la and lb represent the two ends of a sheet of woven cloth which ends are to be joined together to form a loop of the cloth.
  • the cloth is, of course, joined at its other ends (the left-hand end of la to the righthand end of lb), but is shown separated in the Figures for ease of illustration.
  • the inventive seam can be used, and it is within the scope of the invention to use the inventive seam, to join together two or more separate cloths as will be obvious from the following description.
  • Each end of the cloth comprises alternate warp strands 3a, 4a and 3b, 4b respectively.
  • strand 3a is in front of 4a and 3b is in front of 4b. It is, of course, understood that the cloth comprises more than just two warp strands in the width thereof; however, the further warp strands cannot be seen in the side view. Nevertheless, this construction is well known to one skilled in the art and need not be elaborated on here.
  • Weft strands 5a and Share interwoven in the warp strands, and the warp strands 3a, 4a and 3b, 4b comprise warp areas referenced as 30a and 30b respectively in the drawings.
  • the areas 30a and 30b are joined as described above to comprise a loop of cloth. This area is hereinafter referred to as the third warp area.
  • a first warp area a is located at the right-hand end of the cloth while a second warp area 20b is located at the left-hand end of the cloth.
  • the first and third areas are separated by an unwefted warp area 50a and the second and third areas are separated by a further unwefted area 50b.
  • the wefts from the unwefted areas may be removed after the cloth has been woven.
  • the weft strands in the unwefted areas are simply omitted in the weaving so that the weft strands do not have to be cut out later. In this way, a great saving in time can be realized.
  • the number of weft strands removed or omitted in the areas 50a and 50b will usually exceed by at least two the number of strands remaining in the areas 20a and 20b respectively to leave space for a coupling means as will be described below. Generally, it is advantageous to remove some 5 l2 weft strands in the areas 50a and 50b, and the process is aided when the same number of strands are removed in both areas.
  • Areas 50a and 50b comprise alternate strands 6a, 7a and 6b, 7b respectively.
  • some warp strands are cut out all across the width in the unwefted areas 50a and 50b.
  • the number of warp strands cut out will depend to a large extent on the warp fill factor and the drainage which is to be achieved at the seam.
  • Warp fill factor is given by the sum of the warps in, say, an inch of cloth width multiplied by warp diameter. For example. in a 60 mesh cloth having warp which is 0.010 inch in diameter, the fill factor is 0.6.
  • drainage is the controlling factor because generally there is ample strength at the seam even when two out of every three strands are removed.
  • the warp fill factor is low, it may not be necessary to cut out warp strands in the areas that are to be intermeshed and the total number of warp strands at one end may be intern'ieshedwith the total number of warp strands at the other end of the cloth and so pinned together without undue blockage at the joint.
  • strands 7a and 7b are shown to remain while strands 6a and 6b have been removed.
  • the warp strands remaining in the unwefted areas are bent in the directions indicated by arrows 9a and 9b in FIG. 3 to reduce crimp in the strands 7a and 7b, and to produce partially uncrimped strands 8a and 8b.
  • These partially uncrimped strands are then meshed together when the end 1a is placed in position over cloth end lb as shown in FIG. 4.
  • a coupling means 10 which can comprise a hinge or pintle pin, is then inserted in the meshed strands.
  • Tension is then applied to the cloth as shown by arrows 11a and 11b in FIG. 5 whereby a crimp will be formed at the ends of the strands 8a and 8b.
  • the pintle pin 10 remains in this joint.
  • the ends of the cloth la and 1b will move in the directions indicated by the arrows 12a and 12b respectively in FIG. 5.
  • the areas 20a and 20b will then align themselves along the strands 8a and 8b as illustrated in FIG. 6 to cover up the openings resulting from the removal of the weft strands.
  • the warp strands at the extreme end edges la and lb are preferably heat sealed (welded), or coated with adhesive, or sealed and bonded to the end weft strands 21a and 2112 respectively to prevent unravelling.
  • warp strands may be allowed to project and these projecting strands can then be interwoven into the cloth of the belt at each side of the seam to hold the small sections of cloth or flaps in places as shown in FIG. 7.
  • strands 70a and 70b extending respectively from areas a and 20b, are interwoven respectively into areas 301; and a.
  • two or more crimps 1000, l 10a and 100b, 1 10b, of unwefted warp may be enlarged and intermeshed and two or more pintle pins 200 and 300 inserted between the successive crimps.
  • none of the warp strands are culled away so that the drainage at the seam is restricted.
  • the drainage need not be so restricted as can be seen in FIG. 9.
  • three crimps 400a, 400b; 500a, SOOb and 600a, 6001; are formed in the unwefted areas, intermeshed, and three pintle pins 700, 800, and 900 are inserted between the successive crimps.
  • some of the warp strands are culled away.
  • a seam for joining together two ends of a woven cloth having a length and a width
  • said cloth comprising
  • said third area having a first end adjacent said first area and a second end adjacent said second area;
  • each of said warp strands in said first and second weftless continuations of said warp strands comprising a crimp
  • said seam comprising;
  • said crimps being adjacent one another along the width of said cloth when said warp strands of said first weftless continuation of said warp strands and said second weftless continuation of said warp strands are intermeshed;
  • said first area of warp lies on said second weftless continuation between said coupling means and the second end of the third area on one side of the intermesh, and in that said second area of warp lies on said first weftless continuation between said coupling means and the first end of said third area on the other side of the intermesh.
  • said first, second and third number of warp strands being substantially equal;
  • said first and second weftless continuations of said warp strands comprising, respectively, fourth and fifth numbers of warp strands;
  • said fourth and fifth numbers of warp strands being substantially equal and less than said first, second and third numbers of warp strands.
  • the corresponding warp strands in said third area of warp comprises every second warp strand in said third area of warp;
  • first weftless continuation joins only every second warp strand of said first area of warp with every second warp strand of said third area of warp; the remainder of the warf strands of said first weftless continuation being culled out;
  • the selected second set of warp strands in said second area of warp comprises every second warp strand in said second area of warp;
  • the corresponding warp strands in said third area of warp comprises every second warp strand in said third area of warp;
  • the corresponding warp strands in said third area of warp comprises every second and third warp strand in said third area of warp;
  • first weftless continuation joins only every second and third warp strand of said first area of warp with every second and third warp strand of said third area of warp; the remainder of the warp strands of said first weftless continuation being culled out; andwherein the selected second set of warp strands in said second area of warp comprises every second and third warp strand in said second area of warp;
  • the corresponding warp strands in said third area of warp comprises every second and third warp strand in said third area of warp;
  • the corresponding warp strands in said third area of warp comprises every second, third and fourth warp strand in said third area of warp;
  • first weftless continuation joins only every second, third and fourth warp strand of said first area of warp with every second, third and fourth warp strand of said third area of warp; the remainder of the warp strands of said first weftless continuation being culled out;
  • the selected second set of warp strand in said second area of warp comprises every second, third and fourth warp strand in said second area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second, third and fourth warp strand in said third area of warp;
  • said second weftless continuation joins only every second, third and fourth warp strand of said second area of warp with every second, third and fourth warp strand of said third area of warp; the remainder of the warp strands of said second weftless continuation being culled out.
  • a seam as defined in claim 1 wherein the selected first set of warp strands in said first area of warp comprises every third warp strand in said first area of warp;
  • the corresponding warp strands in said third area of warp comprises every third warp strand in said third area of warp;
  • said first weftless continuation joins only every third warp strand of said first area of warp with every third warp strand of said third area of warp; the remainder of the warp strands of said first weftless continuation being culled out; and wherein the selected second set of warp strands in said second area of warp comprises every third warp strand in said second area of warp; v and wherein the corresponding warp strands in said third area of warp comprises.
  • each length of warp strand enveloping an interwoven weft strand comprises a unit of length
  • each of said first and second weftless continuations of said warp strands comprises a greater number of units of length than its adjacent first and second areas of warp respectively.
  • each of said warp strands in said first and second weftless continuations of said warp strands comprises a crimp; said crimps of one of the weftless continuation extending in an upward direction relative to said cloth, and said crimps of the other of the weftless continuations extending in a downward direction relative to the cloth;
  • said crimps being adjacent one another along the width of said cloth when said first weftless continuations of said warp strands and said second weftless continuations of said warp strands are intermeshed; whereby the crimps cooperate with to form cylindrical-like openings along the width of the cloth; said coupling means being inserted in said cylindrical-like openings to thereby fasten one end of said cloth to the other end thereof.
  • each said warp strands in said first and second weftless continuations of said warp strands comprises at least a first crimp and a second crimp;
  • said first crimps of said first weftless continuation of said warp strands cooperating with said second crimps of said second weftless continuation of said warp strands to form a first cylindrical-like opening along the width of said cloth;
  • said second crimps of said first weftless continuation of said warp strands cooperating with said first crimps of said weftless continuation of said warp strands to form a second cylindrical-like opening along the width of said cloth;
  • first and second coupling means inserted in each said first and second cylindrical-like openings respectively to thereby fasten one end of said cloth to the other end thereof.
  • a seam as defined in claim 16 wherein said first and second coupling means comprises first and second pintle pins respectively.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
US39844473 1972-09-23 1973-09-18 Woven cloth seam Expired - Lifetime US3900659A (en)

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GB4412472A GB1432357A (en) 1972-09-23 1972-09-23 Woven cloth seam

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US3900659A true US3900659A (en) 1975-08-19

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US (1) US3900659A (enrdf_load_stackoverflow)
JP (1) JPS49132375A (enrdf_load_stackoverflow)
AU (1) AU6056873A (enrdf_load_stackoverflow)
CA (1) CA986762A (enrdf_load_stackoverflow)
DE (1) DE2348032A1 (enrdf_load_stackoverflow)
GB (1) GB1432357A (enrdf_load_stackoverflow)
SE (1) SE383195B (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095622A (en) * 1975-11-27 1978-06-20 Jwi Ltd. Woven seam in fabric and method of making same
US4267226A (en) * 1979-09-19 1981-05-12 Wurttembergische Filztuchfabrik Fabric web and a method of making a fabric web for a dewatering machine
US4315049A (en) * 1979-12-06 1982-02-09 Asten Group, Incorporated Stitchless low bulk, pin-type seam for use in paper making equipment fabrics, such as dryer felts
US4405669A (en) * 1981-09-08 1983-09-20 Koninklijke Textielfabrieken Nijverdal-Ten Cate N.V. Laminate reinforcement for fibre-reinforced synthetic resins
US5346590A (en) * 1992-02-24 1994-09-13 Tamfelt Oy Ab Dryer screen in a paper machine
US5377722A (en) * 1992-02-24 1995-01-03 Tamfelt Oy Ab Folded spiral seam including longitudinal bonding stitch
US20030066570A1 (en) * 2001-10-05 2003-04-10 Michael Maguire Belt-machine combination
US6702927B2 (en) * 2002-03-27 2004-03-09 Albany International Corp. Seaming of spirally wound paper machine clothing
US20050019521A1 (en) * 2003-06-11 2005-01-27 Hiroshi Yamanaka Diagonally joined cylindrical fabric and manufacturing method thereof
US7093621B2 (en) * 2004-12-15 2006-08-22 Albany International Corp. Multi-pin pin seam for an industrial fabric
US20070163667A1 (en) * 2006-01-17 2007-07-19 Voith Paper Gmbh Seam press fabric
US20120244313A1 (en) * 2009-12-11 2012-09-27 Astenjohnson, Inc. Hinge type seaming element for joining ends of an industrial textile
EP2458245A3 (de) * 2010-11-25 2013-01-02 Heimbach GmbH & Co. KG Transportband
CN104040071A (zh) * 2011-12-05 2014-09-10 福伊特专利公司 造纸机用布的连接处理

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258187U (enrdf_load_stackoverflow) * 1975-10-14 1977-04-27
AU527809B2 (en) * 1978-11-30 1983-03-24 Albany International Corp. Forming fabric seam and method of producing
US5385765A (en) * 1992-10-26 1995-01-31 Alliedsignal Inc. Splicing for fluoropolymer coated belts
JP2007277741A (ja) * 2006-04-04 2007-10-25 Nippon Felt Co Ltd 製紙用フェルト及びその製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283388A (en) * 1965-01-08 1966-11-08 Fabric Res Lab Inc Method and means for making a papermaker's felt endless

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283388A (en) * 1965-01-08 1966-11-08 Fabric Res Lab Inc Method and means for making a papermaker's felt endless

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095622A (en) * 1975-11-27 1978-06-20 Jwi Ltd. Woven seam in fabric and method of making same
US4267226A (en) * 1979-09-19 1981-05-12 Wurttembergische Filztuchfabrik Fabric web and a method of making a fabric web for a dewatering machine
US4315049A (en) * 1979-12-06 1982-02-09 Asten Group, Incorporated Stitchless low bulk, pin-type seam for use in paper making equipment fabrics, such as dryer felts
US4405669A (en) * 1981-09-08 1983-09-20 Koninklijke Textielfabrieken Nijverdal-Ten Cate N.V. Laminate reinforcement for fibre-reinforced synthetic resins
US5346590A (en) * 1992-02-24 1994-09-13 Tamfelt Oy Ab Dryer screen in a paper machine
US5377722A (en) * 1992-02-24 1995-01-03 Tamfelt Oy Ab Folded spiral seam including longitudinal bonding stitch
US7005038B2 (en) * 2001-10-05 2006-02-28 National Wire Fabric, Inc. Belt-machine combination
US20030066570A1 (en) * 2001-10-05 2003-04-10 Michael Maguire Belt-machine combination
US6702927B2 (en) * 2002-03-27 2004-03-09 Albany International Corp. Seaming of spirally wound paper machine clothing
US20050019521A1 (en) * 2003-06-11 2005-01-27 Hiroshi Yamanaka Diagonally joined cylindrical fabric and manufacturing method thereof
US7029555B2 (en) * 2003-06-11 2006-04-18 Nippon Filcon Co., Ltd. Diagonally joined cylindrical fabric and manufacturing method thereof
US7093621B2 (en) * 2004-12-15 2006-08-22 Albany International Corp. Multi-pin pin seam for an industrial fabric
US20070163667A1 (en) * 2006-01-17 2007-07-19 Voith Paper Gmbh Seam press fabric
US8042577B2 (en) * 2006-01-17 2011-10-25 Voith Patent Gmbh Seam press fabric
US20120244313A1 (en) * 2009-12-11 2012-09-27 Astenjohnson, Inc. Hinge type seaming element for joining ends of an industrial textile
EP2458245A3 (de) * 2010-11-25 2013-01-02 Heimbach GmbH & Co. KG Transportband
CN104040071A (zh) * 2011-12-05 2014-09-10 福伊特专利公司 造纸机用布的连接处理
CN104040071B (zh) * 2011-12-05 2017-03-01 福伊特专利公司 造纸机用布的连接处理

Also Published As

Publication number Publication date
DE2348032A1 (de) 1974-03-28
AU6056873A (en) 1975-03-27
SE383195B (sv) 1976-03-01
CA986762A (en) 1976-04-06
GB1432357A (en) 1976-04-14
JPS49132375A (enrdf_load_stackoverflow) 1974-12-19

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