CA2001994A1 - Jointing of fabric ends - Google Patents

Jointing of fabric ends

Info

Publication number
CA2001994A1
CA2001994A1 CA002001994A CA2001994A CA2001994A1 CA 2001994 A1 CA2001994 A1 CA 2001994A1 CA 002001994 A CA002001994 A CA 002001994A CA 2001994 A CA2001994 A CA 2001994A CA 2001994 A1 CA2001994 A1 CA 2001994A1
Authority
CA
Canada
Prior art keywords
fabric
layers
yarns
industrial
seam
Prior art date
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.)
Abandoned
Application number
CA002001994A
Other languages
French (fr)
Inventor
Joseph J. P. Jourdes
Jean Rouhling
Jean Bouhling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scapa Group Ltd
Original Assignee
Scapa Group Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scapa Group Ltd filed Critical Scapa Group Ltd
Publication of CA2001994A1 publication Critical patent/CA2001994A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/0027Screen-cloths
    • D21F1/0054Seams thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)

Abstract

ABSTRACT
JOINTING OF FABRIC ENDS
A method of jointing the ends of a papermakers or like industrial fabric, typically a corrugator belt, is proposed wherein the ends (12, 13) of a multilayer fabric, of which adjacent layers (17, 18, 24) are joined by binder yarns, are cut back into complementary stepped configuration, the step being in a plane between two successive fabric layers (17, 18) and a clipper seam (14) is provided between the fabric layers of the respective opposing fabric ends existing below the level of the step, the fabric being slitted (at 21) beyond the line of the clipper seam and into the body of the fabric to provide a tongue (19) to receive clipper seam hooks.

Description

01fll~S~ 4 WILSON GUNN ELLIS ~ M'C~W ~3 200~9g~ ` ` `
`

-1- '' `' `
JOINTING OF FA~C E~ S
.
The invention c3ncerns papermakers and iike fabrics, anci has particular, thaugh not exclusi~e reference to corrugator belts. Corr~gator bclts comprise heavy, multi-layer fabric S which are flat woven and hence raquire that the ends be )oired to produce an endles~ belt fcr application to the papermachine.
A typical belt wo~lld ha~c 3 ~Height of, say, 4kg/sq. metre.
Traditionally the belts 3re of sllbst3ntial thickness, and difricul~y has been experienced in satis'actorily brinsing 10 the belt into endless form. In particular, jointing usually invol~tes the use of a c~ipper s~am the hooi~s or whichencompass the full fabric thiclcness, and the seam itself de~ines a break in the suppor~ surf"~:e of the belt of si~3nificant proportions.
The obj~ct of the pre~ent invention i5 to provide an . `
. . ~.
- 15 improved form of jointing~ ~ "` - `
Acwrding to .he invention the. e is proposed a flat wovcn paperma~ers or like industrial fabric comprising plural layers of interwoven warp and weft yarns and additional ~:
yarns axtending in either or both of the warp and weft -~
20 directions and interconnecting adjacent ~aid layers, the: fabric f~Jrther inclu~jn~ cooperable jointing means at the respecti~e fabric ends, the jointing means includ~ng a clipper ~eam engaged with and connectjn9 50me only of the- sai~ plural layers and a butt join overlyjng said clipper seam ancl in offset disposition 25 rel~tive thereto, 131fl1~'00 1~ 5 WlLO.Or~ CLI~N CLLI~ M'C~W 13E~1 200199~
'`

Accorciing to a pfeferred fe3t~Jre, the respectiv~ fa~ric ends of a complementarily stepped configuration in correspvndence ~ith a space between s~lccessive fabr;c layer5 and the fabric is slitted beyond the line of the c~ipper seam parallel to the plane of the fabric and into 5 the body of the fabric.
The invention al50 inc3udes the m~thod of j~injnc;, by me~ns of a clipper seam, the ends of a papermakers or like industrial fa~ric comprising plural layers of interwoven warp and weft yarns and additional yarns interconnccti-lg adiac:ent su~h layel-s, lhe method 10 compri~ing the steps of forming the respective fabric ends into complementarily-shaped stepped conriguration by cuttln~, inc3udtng cutt;nc3 in a plane p~rallel to a face of the fabric, along a line intern-~diate two adjacent fabric layer~, the cut parallel to the fabric face being extended into the fabric at one fabric enc3 to c~erine a 15 tongue ~or arrange!nent in opposed disposition relative to a corresponding part of the other fabric end, and providing a clipper seam between the tongue and the said corresponding part of the other fabric cnd.
l he invent~on will now be described further, by way of example 20 or~ly, with refer~nce to the accolnpanying drawings illustratin~ several em~odiments thereof and in whlch~

.,., .-:... .
.:! ,' ' " . `' 12: ~ W I L50N GUNN ELL I 5 ; r~ w ~i~5 2001994 : ~
- 3 - : -Fig. ~ is a diagrammatic illu~tration of a connection bet~veen fabric er,ds produced in accordanc~ with the in~ention;
and Fii3s. 2 to 4 illu5tr3te typical weave structures o~ - -5 application to the context of co- ruyator belts and susceptible to the application of the inventlon.
Referrin~ now to thc drawing5~ and partic~ larty to Fig. 1 thereof, 3 corrugator ~elt compriseS ~ flat woven multi-layer structur, 11, in which the respectiYe ends 12, 13 10 only are showr~, the structure being made endless ~y means of a clipper seam 14 engaged with some only of the layers, In formin~ the joins between the fabric ends, the respective ends 12, 13 are cut to complementary stepped form, those c~ts l S, 16 at the respective fabric ends 12, 13 which 15 extend parallel to the general ,ulane of the fabric being on a lirle Sctween two adjacent fabric l~yers 17, t8 and thus severin~
only yarns which connect the adj~cent layers ~ithout pre)~dice to the intogrity of the individu~l 12yers. Cut 15 at fabric end 12 is extended into the fabric a~ at 21, the clipper seam 14 ' : :
20 being applied between the tongue 19 formed by the extens~on 21 to the C~Jt l S and thc corresponding part 22 of the oppose~
fabric end ~ 3 .
Prlor to shaping, the fabric ends will be treated wlth a resin to facil~tate the effecting of the cut, whilst glue is 25 applied to those layers of the fabric which reCeive the clipper seam 1 ll prior to insertiorl of the ho~ks 23 of such seam .

11,'89 1?:s6 WILSON GUNN ELLIS ,~ M'~W 006 ;~:001994 ` ~

, ~ :
As is apparent from t~e dr~wing, the uppex layer 17 of fabric end 12 extends ac oss the clipper seam 14 and overlies layer~ 18, 24 at opposing fabric end 13. A sensi~l~ continu~us support surface S accordingly ~xists in the region of the seam, in contradistinction to the discontinuous s~race inherent in the seam region of prior art struc~u~es.
~ he principle illustrated ~y Fig. 1, namely the fo~mation of complement~rily stepped ends, the provisio~ of a clipper se~m joinin~ some only of the ~abric layers and the utilisation of a further fab~ic laye~ to overlie the region of the clipper seam, a tongue being for~ed to faci1itate application of one of the sets of ~lipper hooks by appropriately slitting the fabric, is o~ application in ~he respective contexts of . ~
the weave struc~ures shown in Figs. 2 to ~, although oth~r weave struc~xes will, of couxse, be of application.
In the case of ~he weave s~ructure shown in ~0 ~ig. 2, which is a do~ble harne~s satin, respective ones of face layers 26 and 27 are eonnectad to ah . interm~diate layer 28 b~ w~rp binder yarns 29, 31, the individ~al layers each ¢omprising warp and weft yarns ~oven togethe~ to ~rovide a coherent structure. The line of out ~or the ~espec~ive fabri~ ends i-q as indic~ted by arrow 32, and it will readil~ be ,- " ,.
, ~ , ~, ' ! .', ? :~

01~11'S9 1~:37 WlLSON GUNN ELLIS ~' ~l'C~W 007 :

appreciat~d that, in ~ormin~ the cut, only w~rp ~inder yarns ~ are severed, the in~e~rity ~ the layers between which the c~t exists being main~ined.
Fig. 3 shows an alternative structure whe~ein S plural inte~mediate layer~ a~e provided, seyerenGe of what, by analogy, can con~enàently be c~lled binder warps 33, ~4 at a position between any two adjacent abric layers 35, 36 lea~ing a coherent woven ~tru~ure at -either ~ide thereof. In the arrangemen~
illustxated, ~he e~t 37 i5 mzde between the second and third of the six l~ye~x of weft yarns in the fabric.
A further al~ernati~e weave structuxe is illustated in Fig. 4, fou~ indivi~ual fab~ie layers 41 ~o 44 being provided, the upper thre~ -~oven la~e~s 41 to 43 being joine~ t~gether by binder yarns 45, and ~he lower three layerS 42 to 44 by binder yarns 46. In t~is instanc~, the line of cut is between the uppermost layers 41, 42. binder yarns 45 thus being severed, cohc~ence of t~e upper fa~ic layer 41 being maintained ~y the weave stru~tu~e thereof and the remaining three layers 4~ to q9 being held to~ether ~y binder yarns 46.
The plain ~eave form of the upper layer is thou~ht to ~e advantageous in for~ing the t~ngue to re~eive ~he ~lippe~ s~am hooks.
~5It i.~ to be appreciated that, whilst in the ar~ngem~nts illustra~ed the ~espe~tive weave 9 12:~8 WIL~iON GUNN ELLIS f M'C~W 008 ~

2(~01994 - 6 ~

structures includ~ binder yarns extendin5 in the warp direction~ ~n analogou~ ef~ect i~ at' ~inable if weft ., binder yarns are ~sed ~o ~orm the fabric l~yers. ~` ;
The invention i5 o~ particul~r application S to the contex~ of corrugatox belts r that is to say of fa~rics having a thicknesc typi&a,lly of O.9 cm, where the gap to receive the clipper seam i~, say, 1 cm wide. ~-The ~elt/f~bric will compris~ textile m~terials of the ~-`y kind commonly used in the art ~nd may comprise, ~or 10 example, oo~ton yarns or a polyes~ex mixture. ;~
,.,'.'" ,, . . .

. . ..
'. ~ `,,: .
'. '~'``'"`'``'`"`.-`'`'~.'.
"~

Claims (8)

1. A flat woven papermakers or like industrial fabric comprising plural layers of interwoven warp and weft yarns and additional yarns extending in either or both of the warp and waft directions and interconnecting adjacent said layers, the fabric further including cooperable jointing means at the respective fabric ends, the jointing means including a clipper seam engaged with and connecting some only on the said plural layer and a butt join overlying said clipper seam and in offset disposition relative thereto.
2. A flat woven papermakers or like industrial fabric as claimed in claim 1, wherein the said additional yarns interconnecting adjacent fabric layers comprise warp yarns.
3. A flat woven papermakers of like industrial fabric as claimed in claim 1 or 2, wherein the said additional yarns interconnect three adjacent layers.
4. A flat woven papermakers or like industrial fabric as claimed in claim 1, wherein the respective fabric ends axe of complementary stepped configuration in correspondence with a space between successive fabric layers and the fabric is slitted beyond the line of the clipper seam parallel to the plane of the fabric and into the body of the fabric.
5. A flat woven papermakers or like industrial fabric as claimed in claim 1, wherein the butt join is provided in respect of the surface layer of interwoven warp and weft yarns.
6. A flat woven papermakers or like industrial fabric as claimed in claim 5, wherein the surface layer comprises a plain weave.
7. The method of joining, by means of a clipper seam, the ends of a papermakers or like industrial fabric comprising plural layers of interwoven warp and weft yarns and additional yarns interconnecting adjacent such layers, the method comprising the steps of forming the respective fabric ends into complementarily-shaped stepped configuration by cutting, including cutting in a plane parallel to a face of the fabric, along a line intermediate two adjacent fabric layers, the cut parallel to the fabric face being extended into the fabric at one fabric end to define a tongue for arrangement in opposed disposition relative to a corresponding part of the other fabric end, and providing a clipper seam between the tongue and the said corresponding part of the other fabric end.
8. The method as claimed in claim 7, including the step of resin treating the fabric in the region of the intended seam prior to cutting thereof.
CA002001994A 1988-11-04 1989-11-01 Jointing of fabric ends Abandoned CA2001994A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8825870.2 1988-11-04
GB888825870A GB8825870D0 (en) 1988-11-04 1988-11-04 Jointing of fabric ends

Publications (1)

Publication Number Publication Date
CA2001994A1 true CA2001994A1 (en) 1990-05-04

Family

ID=10646330

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002001994A Abandoned CA2001994A1 (en) 1988-11-04 1989-11-01 Jointing of fabric ends

Country Status (7)

Country Link
EP (1) EP0367614A3 (en)
JP (1) JPH02242990A (en)
KR (1) KR900008086A (en)
CN (1) CN1043916A (en)
CA (1) CA2001994A1 (en)
DK (1) DK549689A (en)
GB (2) GB8825870D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127164C2 (en) * 1991-08-16 1994-02-03 Muehlen Sohn Gmbh & Co Woven special belt for corrugated cardboard machines
FI110135B (en) 2000-12-18 2002-11-29 Tamfelt Oyj Abp Process for making a press felt and press felt
FI110134B (en) 2000-12-18 2002-11-29 Tamfelt Oyj Abp Process for making a press felt, press felt and bottom fabric
US7086128B2 (en) * 2002-12-27 2006-08-08 Albany International Corp. Seam assist attachment device
CN105438718B (en) * 2015-11-06 2017-09-05 常勇 Fabric core conveyor belt joint
CN106381747B (en) * 2016-11-03 2018-12-21 芜湖航达网业有限公司 Supporting network is used in a kind of drying of combination-type papermaking
CN110820119B (en) * 2019-08-23 2021-03-16 江苏工程职业技术学院 Stepped combined-layer fabric and production method thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB335376A (en) * 1929-09-30 1930-09-25 Eduard Von Asten Improvements in and relating to drier felt seam constructions
US2893007A (en) * 1955-08-17 1959-07-07 Ton Tex Corp Covered hinge joint for conveyor belts
GB847646A (en) * 1956-01-09 1960-09-14 Scapa Dryers Ltd Improvements in or relating to woven fabrics for belt fasteners
GB989976A (en) * 1962-11-30 1965-04-22 Fenner Co Ltd J H Improvements in conveyor belting
GB1056351A (en) * 1963-07-03 1967-01-25 Drytex Ltd Jointing of endless bands
BE718497A (en) * 1967-08-10 1968-12-31
US4344209A (en) * 1979-10-22 1982-08-17 Scapa Dryers, Inc. In-line clipper seam
GB8630243D0 (en) * 1986-12-18 1987-01-28 Scapa Porritt Ltd Dryer fabric seaming
GB8905005D0 (en) * 1989-03-04 1989-04-19 Scapa Group Plc Improvements in or relating to papermakers and like fabrics

Also Published As

Publication number Publication date
CN1043916A (en) 1990-07-18
EP0367614A3 (en) 1991-06-12
GB8825870D0 (en) 1988-12-07
DK549689A (en) 1990-05-05
JPH02242990A (en) 1990-09-27
KR900008086A (en) 1990-06-02
EP0367614A2 (en) 1990-05-09
DK549689D0 (en) 1989-11-03
GB8924732D0 (en) 1989-12-20
GB2225746A (en) 1990-06-13

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