EP0198773A1 - Einrichtung zum Endlosmachen eines Nasspressfilzes oder eines Papiertuches - Google Patents

Einrichtung zum Endlosmachen eines Nasspressfilzes oder eines Papiertuches Download PDF

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Publication number
EP0198773A1
EP0198773A1 EP86420068A EP86420068A EP0198773A1 EP 0198773 A1 EP0198773 A1 EP 0198773A1 EP 86420068 A EP86420068 A EP 86420068A EP 86420068 A EP86420068 A EP 86420068A EP 0198773 A1 EP0198773 A1 EP 0198773A1
Authority
EP
European Patent Office
Prior art keywords
loops
warp
short
long
series
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.)
Granted
Application number
EP86420068A
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English (en)
French (fr)
Other versions
EP0198773B1 (de
Inventor
Jean-Louis Errecart
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.)
BINET FEUTRES SA
Original Assignee
BINET FEUTRES SA
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 BINET FEUTRES SA filed Critical BINET FEUTRES SA
Priority to AT86420068T priority Critical patent/ATE59865T1/de
Publication of EP0198773A1 publication Critical patent/EP0198773A1/de
Application granted granted Critical
Publication of EP0198773B1 publication Critical patent/EP0198773B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/16—Belt fasteners
    • Y10T24/1608—Hinged
    • Y10T24/162—Pintle pin connected belt ends

Definitions

  • the present invention relates to a joining device for wet press felt and stationery fabric.
  • Some devices use external elements such as staples, spirals or pliers.
  • US-A-4 095 622 describes, moreover, a joining device for fabrics commonly known as "dryer covers".
  • the purpose of such a covering is to uniformly apply the sheet of paper against heating rollers to facilitate the transfer of heat and therefore the evaporation of water from the sheet. To do this, it must therefore be breathable but above all have a good surface uniformity.
  • the present invention has set itself the object of overcoming these drawbacks by proposing a new joining device which facilitates the longitudinal and vertical flow of water and eliminates the risks of marking the sheet of paper while having resistance to improved rupture compared to simple devices of the prior art.
  • This joining device is more particularly intended for covering presses.
  • This type of covering subjected to pressures greater than 100 bars, comes into contact with a sheet of paper saturated with water, therefore very fragile.
  • the very regularity required for the covering, in particular at the junction, is at the limit of acceptable hydraulic pressure, which excludes any constriction of water drainage channels in the longitudinal direction, as well as any weakening of resistance.
  • the subject of the invention is a joining device for a wet press felt and stationery fabric of the type comprising, at each end of the fabric, in a region devoid of weft threads, several series of length loops different formed by the warp threads and which is characterized in that at least two series of loops aligned opposite one another are formed at each end of the strip, this alignment being maintained by the introduction of two different rods in the two aligned loops formed by the two ends of the same thread of the base fabric.
  • an interval is made which facilitates the longitudinal and vertical flow of water and eliminates the risk of marking the sheet of paper.
  • the series of loops aligned one opposite the other are distributed over three rods.
  • warp threads are generally represented by (2) and the weft threads by (3).
  • the warp threads (2) form at each end of the fabric, and in an area devoid of weft threads (3), a series of loops (4) and ( 5) arranged alternately and nested one inside the other so as to form a passage intended to receive a single junction ring (6).
  • Devices of this type have a certain number of drawbacks, among which there may be mentioned a rather weak solidity of the junction; in fact, only half of the wires participate in this junction.
  • the warp threads (2) form, at each end of the fabric, and in an area devoid of weft threads (3) two series of loops of different length (7 ) and (8) on the one hand and (9) and (10) on the other.
  • the loops (7) and (9), formed by the same warp thread on the two ends of the fabric, as well as the loops (8) and (10) are nested one inside the other, the rods (11) and (12) ensuring the junction of the fabric by passing through the loops formed by the same warp thread.
  • the resistance of the joining device is certainly improved due to the presence of the two rods (11) and (12) but it should be noted that the broken line formed by the nested loops (7) and (9) on the one hand and ( 8) and (10) on the other hand impede the flow of water. This line can also lead to the formation of thickness which risks causing the sheet of paper to be marked under the pressing devices.
  • junction device represented in FIG. 5 which corresponds to that described in US-A-4,095,622
  • two adjacent wires, belonging to the same plane of the felt define a loop which cannot be kept perpendicular to this same plane to facilitate the re-entry of the rod, which suggests assembly difficulties.
  • the joining device according to the invention as shown in Figures 6 to 9 aims to overcome these drawbacks.
  • This device also comprises, at each end of the fabric, in a region devoid of weft threads (3), several series of loops (13,14,15,16,17 and 18) of different length formed by the warp threads (2).
  • these series of loops are not nested one inside the other but aligned one opposite the other, while defining channels for the passage of the rods (19,20 and 21).
  • the loop (14) formed by a warp thread on one end of the fabric and the loop (16) formed by the same warp thread at the other end of the canvas are not offset from each other, as was the case in the embodiments shown in Figures 1 to 4, but aligned one opposite the other. It is the same for the loop (15) and for the loop (17).
  • the channels intended to allow the passage of the rods (19, 20 and - 21) are then no longer formed by the cooperation of two nested loops coming from the same warp thread, but by the cooperation of loops coming from different warp threads; for example, the rod (19) will pass through the series of loops (15) and (18), the rod (20) through the series of loops (14) and (17) and the rod (21) into the series of loops (13) and (16).
  • the loops (14) and (16) formed, at the two ends of the fabric, by the same warp thread, are kept in alignment by two different rods, respectively (20) and (21); it is the same for the loops (15) and (17) held in alignment by the rods (19) and (20). This alignment is even more clearly represented at FIG. 9.
  • the wires are rigorously superimposed two by two, which avoids changing the plane of the junction device of US-A-4,095,622.
  • all the warp threads of the fabric form, at each end, loops.
  • the particular arrangement of the loops according to the invention gives them more freedom, which allows the biasing of the frame to limit vibrations and provides the elasticity necessary to compensate for the inevitable jolts which risk causing the junction to break.
  • the solidity of the junction according to the invention is approximately 166%; indeed, all the wires participate in the tensile force.
  • Another important advantage of the joining device according to the invention is its ease of assembly, often difficult in part pressing. Indeed, when positioning the loops (15) and (18) intended to receive the first rod (19), only one sixth of the network of loops of the junction is assembled. It is the same for the positioning of the loops (13) and (16) intended to receive the rod (21). The loops (14) and (17) intended to receive the rod (20) are self-positioned by the assembly of the two preceding rods.
  • the present invention is not limited by the embodiment described above by way of nonlimiting example. On the contrary, it embraces all variants of it, whatever the nature of the threads constituting the canvas as well as the nature of the rods.

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  • Paper (AREA)
EP86420068A 1985-03-12 1986-03-10 Einrichtung zum Endlosmachen eines Nasspressfilzes oder eines Papiertuches Expired - Lifetime EP0198773B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86420068T ATE59865T1 (de) 1985-03-12 1986-03-10 Einrichtung zum endlosmachen eines nasspressfilzes oder eines papiertuches.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8504062A FR2578869B1 (fr) 1985-03-12 1985-03-12 Dispositif de jonction pour feutre de presse humide et toile de papeterie.
FR8504062 1985-03-12

Publications (2)

Publication Number Publication Date
EP0198773A1 true EP0198773A1 (de) 1986-10-22
EP0198773B1 EP0198773B1 (de) 1991-01-09

Family

ID=9317351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86420068A Expired - Lifetime EP0198773B1 (de) 1985-03-12 1986-03-10 Einrichtung zum Endlosmachen eines Nasspressfilzes oder eines Papiertuches

Country Status (6)

Country Link
US (1) US4658863A (de)
EP (1) EP0198773B1 (de)
AT (1) ATE59865T1 (de)
CA (1) CA1280309C (de)
DE (1) DE3676733D1 (de)
FR (1) FR2578869B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633395A1 (de) * 1986-10-01 1988-04-14 Heimbach Gmbh Thomas Josef Maschinenbespannung, insbesondere papiermaschinenfilz oder -sieb
EP0341042A2 (de) * 1988-05-04 1989-11-08 Asten Group Inc. Naht für Filze

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865083A (en) * 1987-06-24 1989-09-12 Asten Group, Inc. Seamed multi-layered papermaker's fabric
US4883096A (en) * 1988-05-04 1989-11-28 Asten Group, Inc. Seam design for seamed felts
US4991630A (en) * 1989-04-10 1991-02-12 Asten Group, Inc. Single layer pin seam fabric having perpendicular seaming loops and method
US5053109A (en) * 1988-05-04 1991-10-01 Asten Group, Inc. Single layer seamed papermakers fabric
US4862926A (en) * 1988-10-14 1989-09-05 Asten Group, Inc. Shaped monofilament coil seam and fabrics
USRE35966E (en) * 1990-06-06 1998-11-24 Asten, Inc. Papermakers fabric with orthogonal machine direction yarn seaming loops
US5411062A (en) * 1990-06-06 1995-05-02 Asten Group, Inc. Papermakers fabric with orthogonal machine direction yarn seaming loops
SE468052B (sv) * 1991-03-05 1992-10-26 Scandiafelt Ab Skarv foer vaevnader
CA2065127C (en) * 1991-10-11 1996-04-23 C. Barry Johnson Woven papermakers fabric having a unibody seam and a method for making the same
US5544678A (en) * 1995-04-14 1996-08-13 Jwi Ltd. Composite forming fabric woven with an Nx2N machine side layer
US6079454A (en) * 1997-11-24 2000-06-27 Astenjohnson, Inc. Loop/tie-back woven loop seam press base
US6273146B1 (en) * 1998-08-31 2001-08-14 Astenjohnson, Inc. Papermaking fabric seam with additional threads in the seam area
SE512567C2 (sv) * 1998-08-31 2000-04-03 Texo Ab Styrarrangemang vid skaftramsvävmaskin eller vävmaskinsarrangemang innefattande sådan maskin
SE512568C2 (sv) * 1998-08-31 2000-04-03 Texo Ab Skaftramsvävmaskin med varptrådsuppsättningar i två skikt samt två varptrådsuppsättningar i vändvecksskikt
SE512569C2 (sv) * 1998-08-31 2000-04-03 Texo Ab Vävmaskinsarrangemang med metod, anordning och användning samt rundvävd produkt framställd med arrangemanget
FR2789702B1 (fr) * 1999-02-16 2001-03-30 Cofpa Jonction a armure symetrique pour bande tissee a armure asymetrique
US6643899B2 (en) 2000-06-16 2003-11-11 André Corriveau Spiral for interconnecting ends of endless belt segments
US7093621B2 (en) * 2004-12-15 2006-08-22 Albany International Corp. Multi-pin pin seam for an industrial fabric
US7360560B2 (en) * 2006-01-31 2008-04-22 Astenjohnson, Inc. Single layer papermakers fabric
DE102006042812A1 (de) * 2006-09-08 2008-03-27 Voith Patent Gmbh Band für eine Maschine zur Herstellung von Bahnmaterial, insbesondere Papier, Karton oder Tissue, und Verfahren zur Herstellung eines derartigen Bandes
US10696008B2 (en) * 2013-03-15 2020-06-30 Rolls-Royce Corporation Textile material joining technique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195303A5 (en) * 1972-08-02 1974-03-01 Cofpa Endless conveyor belt - in which the belt ends have interleaving loops through which a junction element passes to join them together
FR2337781A1 (fr) * 1976-01-08 1977-08-05 Albany Int Corp Joint de raccordement d'etoffes
US4095622A (en) * 1975-11-27 1978-06-20 Jwi Ltd. Woven seam in fabric and method of making same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB982682A (en) * 1960-02-23 1965-02-10 Aurelio Zatti Improvements in and relating to woven felts for paper-board-making and like machines
US4206787A (en) * 1978-09-18 1980-06-10 Nordiskafilt Ab Method of providing a seam in double-layer forming fabrics
US4438789A (en) * 1981-06-04 1984-03-27 Jwi Ltd. Woven pin seam in fabric and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195303A5 (en) * 1972-08-02 1974-03-01 Cofpa Endless conveyor belt - in which the belt ends have interleaving loops through which a junction element passes to join them together
US4095622A (en) * 1975-11-27 1978-06-20 Jwi Ltd. Woven seam in fabric and method of making same
FR2337781A1 (fr) * 1976-01-08 1977-08-05 Albany Int Corp Joint de raccordement d'etoffes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633395A1 (de) * 1986-10-01 1988-04-14 Heimbach Gmbh Thomas Josef Maschinenbespannung, insbesondere papiermaschinenfilz oder -sieb
US4775446A (en) * 1986-10-01 1988-10-04 Thomas Josef Heimbach Gmbh & Co. Seam for a papermaking machine screen or felt
EP0341042A2 (de) * 1988-05-04 1989-11-08 Asten Group Inc. Naht für Filze
EP0341042A3 (de) * 1988-05-04 1991-08-28 Asten Group Inc. Naht für Filze

Also Published As

Publication number Publication date
CA1280309C (fr) 1991-02-19
DE3676733D1 (de) 1991-02-14
EP0198773B1 (de) 1991-01-09
FR2578869B1 (fr) 1988-09-30
ATE59865T1 (de) 1991-01-15
FR2578869A1 (fr) 1986-09-19
US4658863A (en) 1987-04-21

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