EP0198773A1 - Einrichtung zum Endlosmachen eines Nasspressfilzes oder eines Papiertuches - Google Patents
Einrichtung zum Endlosmachen eines Nasspressfilzes oder eines Papiertuches Download PDFInfo
- 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
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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.
Landscapes
- Paper (AREA)
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 |
---|---|---|---|
FR8504062 | 1985-03-12 | ||
FR8504062A FR2578869B1 (fr) | 1985-03-12 | 1985-03-12 | Dispositif de jonction pour feutre de presse humide et toile de papeterie. |
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)
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)
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 |
US5053109A (en) * | 1988-05-04 | 1991-10-01 | Asten Group, Inc. | Single layer seamed papermakers 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 |
US4862926A (en) * | 1988-10-14 | 1989-09-05 | Asten Group, Inc. | Shaped monofilament coil seam and fabrics |
US5411062A (en) * | 1990-06-06 | 1995-05-02 | Asten Group, Inc. | Papermakers fabric with orthogonal machine direction yarn seaming loops |
USRE35966E (en) * | 1990-06-06 | 1998-11-24 | Asten, 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 |
SE512569C2 (sv) * | 1998-08-31 | 2000-04-03 | Texo Ab | Vävmaskinsarrangemang med metod, anordning och användning samt rundvävd produkt framställd med arrangemanget |
SE512567C2 (sv) * | 1998-08-31 | 2000-04-03 | Texo Ab | Styrarrangemang vid skaftramsvävmaskin eller vävmaskinsarrangemang innefattande sådan maskin |
US6318413B1 (en) * | 1998-08-31 | 2001-11-20 | Astenjohnson, Inc. | Papermaking fabric seam with additional threads in the seam area |
SE512568C2 (sv) * | 1998-08-31 | 2000-04-03 | Texo Ab | Skaftramsvävmaskin med varptrådsuppsättningar i två skikt samt två varptrådsuppsättningar i vändvecksskikt |
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)
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)
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 |
-
1985
- 1985-03-12 FR FR8504062A patent/FR2578869B1/fr not_active Expired
-
1986
- 1986-03-07 CA CA000503540A patent/CA1280309C/fr not_active Expired - Lifetime
- 1986-03-10 EP EP86420068A patent/EP0198773B1/de not_active Expired - Lifetime
- 1986-03-10 AT AT86420068T patent/ATE59865T1/de not_active IP Right Cessation
- 1986-03-10 DE DE8686420068T patent/DE3676733D1/de not_active Expired - Fee Related
- 1986-03-12 US US06/838,913 patent/US4658863A/en not_active Expired - Fee Related
Patent Citations (3)
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)
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 |
---|---|
EP0198773B1 (de) | 1991-01-09 |
FR2578869A1 (fr) | 1986-09-19 |
US4658863A (en) | 1987-04-21 |
CA1280309C (fr) | 1991-02-19 |
ATE59865T1 (de) | 1991-01-15 |
DE3676733D1 (de) | 1991-02-14 |
FR2578869B1 (fr) | 1988-09-30 |
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