EP0002739B1 - Presse à essorer - Google Patents

Presse à essorer Download PDF

Info

Publication number
EP0002739B1
EP0002739B1 EP78101694A EP78101694A EP0002739B1 EP 0002739 B1 EP0002739 B1 EP 0002739B1 EP 78101694 A EP78101694 A EP 78101694A EP 78101694 A EP78101694 A EP 78101694A EP 0002739 B1 EP0002739 B1 EP 0002739B1
Authority
EP
European Patent Office
Prior art keywords
press
sammier
counterpressure
hose
roll
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.)
Expired
Application number
EP78101694A
Other languages
German (de)
English (en)
Other versions
EP0002739A1 (fr
Inventor
Arnold Becker
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.)
Louis Schweizer & Co KG Lederfabrik GmbH
Original Assignee
Louis Schweizer & Co KG Lederfabrik GmbH
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 Louis Schweizer & Co KG Lederfabrik GmbH filed Critical Louis Schweizer & Co KG Lederfabrik GmbH
Publication of EP0002739A1 publication Critical patent/EP0002739A1/fr
Application granted granted Critical
Publication of EP0002739B1 publication Critical patent/EP0002739B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/246—The material being conveyed around a drum between pressing bands
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/30—Pressing or rolling leather
    • C14B1/34—Pressing or rolling leather by rotating movement of the pressing or rolling elements
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/58—Drying

Definitions

  • the invention relates to a wilting press for leather and fur with a middle pressure roller with an elastically deformable jacket, counter pressure rollers supporting it on the circumferential side and with two co-moving by frictional engagement, the material to be squeezed out between receiving and moving through the conveyor belts formed between the pressure roller and the counter pressure rollers , of which at least the conveyor belt located outside in the area of the pressure roller consists of a water-permeable material.
  • Wilting presses are used in the leather and fur industry to drain the goods. It depends in particular on the throughput and the remaining moisture, as well as on the treatment of the material when it wilts off.
  • a wilting press with two press plates is known (DE-B-22 49 369), which works in intermittent operation.
  • the material is brought between the two press plates with a conveyor.
  • a pressure cushion is built up at least on a press plate which is spanned by a membrane, with which the introduced material is pressed.
  • the intermittent operation of this wilting press brings only a small throughput and the large press area requires high pressures, which requires a correspondingly dimensioned machine structure. Despite the small throughput, such a wilting press is large in structure and expensive to buy and maintain.
  • Wilting presses are also known in which the material is continuously conveyed through the machine.
  • two conveyor belts are guided in parallel at a short distance from one another.
  • On the outside of the conveyor belts act several successively arranged press runners or press rolls.
  • the leather is inserted between the belts and pulled by them through the pressing members.
  • a vacuum device is arranged behind each press zone and is intended to suck off the water that is squeezed out.
  • This machine too, is complicated and expensive, and is very space-consuming due to the linear passage of the goods. The drainage is also not sufficient.
  • a further known wilting press rigid pressure rollers and counter-pressure rollers are used, the counter-pressure rollers being pressed against the pressure roller by means of compression springs or pneumatic pressure pads.
  • the conveyor belts are designed as felt belts and absorb the squeezed liquid.
  • This known continuous wilting press is very expensive to maintain because the felt belts have to be replaced after an operating time of about 6 to 8 months because of their deformation, since they can no longer absorb the squeezed-out liquid to a sufficient extent.
  • folds are pressed into the material in such a way that they cannot be completely removed during subsequent treatment.
  • a roller press is known (DE-B-10 30 184), which is primarily used for pressing liquid from moist masses, e.g. Fruit mashing is suitable, but can also serve to drain leather. It has a large pressure roller with an elastic jacket and a large number of small counter-pressure rollers which are distributed close to one another over the circumference of the pressure roller. Two conveyor belts, which are entrained by friction, run through the nip, between which the material to be pressed is fed and from which it is transported through the nip. The outer conveyor belt is permeable, so that the squeezed liquid can run off to the outside.
  • the pressure roller with its elastic jacket should either be under atmospheric pressure or be filled with a pressure medium. Obviously, only relatively low pressures are considered here, since the jacket of the pressure roller is strongly deformed inwards by each individual counter-pressure or support roller. Such an arrangement is unsuitable for wilting leather, since due to the wave-like deformations of the pressure roller, a skin running through the nip would be exposed to constantly changing tensile and thrust forces, which inevitably lead to the formation of wrinkles. In addition, very high pressures are required for wilting leather and furs, since only part of the water is available as surface water, but a very large part is capillary-bound.
  • this capillary-bound water can only be expelled using high pressures, which, given the size of the skin and its uneven thickness, must also be applied over a large area with a changing size of the nip.
  • Such pressures cannot be controlled with the known arrangement due to the strong flexing forces to which the elastic jacket is exposed.
  • the invention is based on the object of designing the wilting press in such a way that the pressures required in particular for pressing off the capillary water can be applied with a gentle treatment of the skin.
  • the arrangement of four counter-pressure rollers ensures that the hose is supported symmetrically.
  • the centering of the hose between the counter-pressure rollers is achieved in that it is wrapped on the majority of its circumference by the conveyor belts, which - since they do not have to be made of elastic material - do not yield in the radial direction.
  • retrofit zones are built up between the individual counter-pressure rollers by the conveyor belts and the goods lying between them running in tensioned condition over the pressure roller. The goods need only be smoothed once at the inlet and then maintains this position.
  • the inlet for the material to be dewatered is provided via a counter-pressure roller arranged in the horizontal plane and the run is provided on the counter-pressure roller lying above after passing through the other counter-pressure rollers.
  • the formation of the pressure pad on the pressure roller is carried out according to one embodiment so that the pressure roller is designed as a pipe section and is spaced from a hose section around that the pipe section and the hose section are airtightly connected to each other at the end faces, and that between the pipe section and the chamber formed in the tube section is filled with compressed air.
  • the chamber can be under constant pressure or be pressurized and maintained during commissioning.
  • a compressed air line is introduced into the pipe section, which is welded airtight into a bore in the wall of the pipe section and opens into the chamber between the pipe section and the hose section. It is therefore only necessary to supply the chamber and not the entire roller with compressed air.
  • the centerpiece of the new wilting press is the pressure roller 11, which is equipped with a pressure pad and consists of a tube section 10 and an elastic hose 12 surrounding it.
  • An airtight chamber 13 is formed between the outer surface of the pipe section 10 and the inner wall of the hose section 12.
  • the inside diameter of the hose section 12 is therefore larger than the outside diameter of the pipe section 10.
  • the pipe section 10 and the hose section 12 are of the same length and are connected to one another in an airtight manner on both end faces.
  • a spacer ring 30 is applied to the outside of the tube section 10 in the region of the end face, over which the elastic hose 12 is placed, as can be seen in the partial section according to FIG.
  • tensioning screws are adjustable which press individual tensioning segments 32 against the tube 12 and this in turn against the spacer ring 30.
  • the mutually facing surfaces of the spacer ring 30 and the tensioning segments 32 are provided with coordinated, preferably circumferential profiles 31 and 33, which ensure a clear jamming of the hose 12.
  • the clamping segments 32 which e.g. can be partially annular, a wedge surface 36.
  • a corresponding wedge surface 37 of a tensioning device 34 acts against this and is tightened by means of coaxial screws.
  • a compressed air line 25 is passed through the bearing axis 28 of the pressure roller, which is rotatably mounted in the bearing 29.
  • the compressed air line 25 is guided into a bore 24 in the wall of the pipe section 10 and welded therein in an airtight manner, so that the compressed air line 25 opens into the chamber 13 between the pipe section 10 and the hose section 12.
  • the compressed air line 25 is therefore non-rotatably connected to the pipe section 10 and the bearing axis 28.
  • the end of the compressed air line 25 protruding from the bearing axis 28 is provided with a rotary coupling 26 so that a stationary compressed air connection can be attached.
  • the chamber 13 is filled continuously or only during the operating time with compressed air of approx. 10 to 25 atm, so that the elastic hose 12 is pressed apart accordingly.
  • This hose 12 is preferably provided with a fabric insert and has a wall thickness of 10 to 20 mm in order to withstand this pressure.
  • each counter-pressure roller 14 15, 16 and 17 are arranged around the pressure roller, of which the counter-pressure rollers 14 and 16 are arranged approximately in a horizontal plane and the counter-pressure rollers 15 and 17 approximately in a vertical plane.
  • These four counter-pressure rollers 14, 15, 16 and 17 form with the pressure roller 11 four narrow press zones, on which the hose 12 can hardly expand.
  • the two conveyor belts 22 and 23 are provided for guiding the goods, at least the lower conveyor belt 22 being perforated and made of plastic or steel.
  • the lower conveyor belt 22 forms with its loop from the deflecting roller 18 in front of the counter-pressure roller 14 a feed device for the material to be dewatered.
  • the lower conveyor belt 22 encloses the hose 12, but faces the counter-pressure rollers 14, 15, 16 and 17 and passes through all the pressing zones.
  • the upper conveyor belt 23 is also guided in the same way, but is turned towards the hose 12 and guided around the pressure roller.
  • the deflecting roller 20 for the upper conveyor belt 23 is arranged so that the material fed on the lower conveyor belt is drawn in between the two conveyor belts 22 and 23 guided around the deflecting roller 20 and the inlet counter-pressure roller 14 and successively the pressing zones the counter pressure rollers 14, 15, 16 and 17 is supplied.
  • the conveyor belts 22 and 23 only have a guiding function, and the squeezed liquid can flow through the openings of these conveyor belts.
  • the dewatering process is determined by the pressure of the compressed air in the chamber 13.
  • the counter-pressure rollers 14, 15, 16 and 17 are provided with a rubber coating and the elastic hose 12 also has sufficient flexibility in the press zones, the material is treated gently when it passes through this new wilting press and leaves the wilting press with a very small residual moisture. Since the hose 12 is bulged between the pressing zones and pressed against the conveyor belts 22 and 23, a repressing operation is carried out between the counter-pressure rollers 14 and 15, 15 and 16 and 16 and 17.
  • the driven pressure roller takes the conveyor belts 22 and 23 in the indicated arrow directions by friction and also the counter-pressure rollers 14, 15, 16 and 17, as well as the deflection rollers 18, 19, 20 and 21 are inevitably rotated by friction in the directions indicated.
  • the loop of the lower conveyor belt 22 is closed via the deflection roller 19, the lower counter-pressure roller 15 to the inlet deflection roller 18.
  • the section of the lower conveyor belt 22 between the outlet counter-pressure roller 17 and the deflection roller 19 serves as a discharge device for the dewatered material.
  • the upper conveyor belt 23 is guided around the deflecting roller 21 and the loop is closed directly by the inlet deflecting roller 20.
  • the upper counter-pressure roller 17 is driven and takes both the conveyor belts and the pressure roller and thus also the other counter-pressure rollers 14, 15, 16 with them.
  • the counter-pressure rollers 14, 15, 16 and 17 can be provided on their outer surfaces with a profiling which mainly removes water to the side.
  • the squeezed liquid can easily be collected in a tub.
  • two pressure rollers can be arranged one behind the other in the conveying direction.
  • two adjacent counter-pressure rollers can be used at the same time work together two pressure rollers, so that only six counter pressure rollers are required, but eight press zones are formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Press Drives And Press Lines (AREA)

Claims (13)

1. Machine à essorer pour cuirs et peaux, comprenant un cylindre de pression médian à enveloppe déformable élastiquement, des cylindres de contre-pression s'appuyant périphériquement sur ledit cylindre de pression médian et deux bandes transporteuses entraînées par friction, recevant entre elles le produit à pressurer, se déplaçant à travers les zones de la machine formés entre le cylindre de pression et les cylindres de contre-pression et dont au moins la bande transporteuse se situant extérieurement dans la zone du cylindre de pression se compose d'une matière perméable à l'eau, caractérisée en ce que.
a) le cylindre de pression (11) est entouré, comme on le sait, d'un tuyau élastique (12) qui forme un coussin de pression avec le cylindre de pression;
b) quatre cylindres de contre-pression (14, 15, 16, 17) sont prévus, dont deux sont disposés dans un plan horizontal et les deux autres, dans un plan vertical et dont
c) seul le dernier cylindre de contre-pression (17) dans le sens du transport est commandé.
2. Machine à essorer selon la revendication 1, caractérisée en ce que l'entrée pour le produit à déshydrater est prévue au-dessus d'un cylindre de contre-pression (14) disposé dans le plan horizontal et en ce que la sortie se trouve, après passage sur les autres cylindres de contre-pression (15, 16), au cylindre de contre-pression (17) disposé dans- le haut.
3. Machine à essorer seton l'une quelconque des revendications 1 et 2, caractérisée en ce que le cylindre de pression est réalisé comme un tronçon tubulaire (10) et est entouré à l'état distant du tuyau élastique (12); en ce que le tronçon tubulaire (10) et le tuyau (12) sont reliés l'un à l'autre à l'état étanche à l'air sur les côtés frontaux; et en ce que la chambre (13) formée entre le tronçon tubulaire (10) et le tuyau (12) est remplie d'air comprimé.
4. Machine à essorer selon la revendication 3, caractérisée en ce qu'on a introduit, dans le tronçon tubulaire (10), un conduit d'air comprimé (25) qui est soudé dans une ouverture (24) de la paroi du tronçon tubulaire (10) à l'état étanche à l'air et qui débouche dans la chambre (13) entre le tronçon tubulaire (10) et le tuyau élastique (12).
5. Machine à essorer selon la revendication 1, caractérisée en ce que le conduit d'air comprimé (25) est relié à l'état fixe au tronçon tubulaire (10) et à son axe de palier (28) et en ce que l'extrémité du conduit d'air comprimé, située à l'extérieur de l'axe de palier (28), est munie d'un joint tournant (26) pour un raccord de tuyau fixe ou analogue.
6. Machine à essorer selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le tronçon tubulaire (10) est muni sur la périphérie, dans la zone des côtés frontaux, d'une bague d'espacement (30); en ce que des segments de serrage (32) en forme d'anneaux partiels entourent le tuyau élastique (12) et peuvent être pressés sur ce tuyau (12) au moyen d'un dispositif de serrage (34) agissant sur ce dernier; et en ce que le tuyau (12) peut être serré sur la bague d'espacement (30).
7. Machine à essorer selon la revendication 6, caractérisée en ce que la bague d'espacement (30) et les segments de serrage (32) sont pourvus, sur les surfaces tournées l'une vers l'autre, de profils (31, 33) alignées de préférence dans la direction périphérique de celles-ci.
8. Machine à essorer selon l'une quelconque des revendications 1 à 7, caractérisée en ce que les côtés frontaux des tronçons tubulaires (10) sont fermés au moyen de disques (27) et en ce qu'on a disposé, sur ces disques (27), des disques annulaires d'appui (35) qui recouvrent les côtés frontaux du tuyau élastique (12) serré fermement entre la bague d'espacement (30) et les segments de serrage (32).
9. Machine à essorer selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'une des bandes transporteuses (22) se déplace, après passage sur le cylindre de conte-pression (17) disposé dans le haut, sur un cylindre de renvoi (19) se situant dans le plan horizontal, ensuite sur le cylindre de contre-pression (15) inférieur se situant dans le plan vertical et finalement sur un autre cylindre de renvoi (18) disposé devant l'entrée, tandis que l'autre bande transporteuse (23) est ramenée, après avoir quitté le cylindre de contre-pression (17) disposé dans le haut, à un cylindre de renvoi (20) se trouvant devant l'entrée, par l'intermédiaire d'un cylindre de renvoi (21) disposé au-dessus du cylindre (17).
10. Machine à essorer selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les cylindres de contre-pression (14, 15, 16, 17) sont munis d'un revêtement de caoutchouc.
11. Machine à essorer selon la revendications 9, caractérisée en ce que les surfaces extérieures des cylindres de contre-pression (14, 15, 16, 17) présentent des profils dérivant l'eau latéralement.
12. Machine à essorer selon l'une quelconque des revendications 1 à 11, caractérisée en ce que le tuyau élastique (12) est muni d'une garniture de tissu et a une épaisseur de paroi de 10, à 20 mm.
13. Machine à essorer selon l'une quelconque des revendications 1 à 12, caractérisée en ce qu'un deuxième cylindre de pression comportant des cylindres de contre-pression est adjoint aux cylindres de pression et aux cylindres de contre-pression, deux cylindres de contre-pression voisins étant adjacents, par différentes zones de leur périphérie, aux deux cylindres de pression.
EP78101694A 1977-12-22 1978-12-15 Presse à essorer Expired EP0002739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2757257A DE2757257C3 (de) 1977-12-22 1977-12-22 Abwelkpresse für Leder, Pelze u.dgl.
DE2757257 1977-12-22

Publications (2)

Publication Number Publication Date
EP0002739A1 EP0002739A1 (fr) 1979-07-11
EP0002739B1 true EP0002739B1 (fr) 1981-10-14

Family

ID=6026872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101694A Expired EP0002739B1 (fr) 1977-12-22 1978-12-15 Presse à essorer

Country Status (8)

Country Link
US (1) US4208892A (fr)
EP (1) EP0002739B1 (fr)
JP (1) JPS5498301A (fr)
BR (1) BR7808401A (fr)
CS (1) CS207747B2 (fr)
DE (2) DE2757257C3 (fr)
ES (1) ES476176A1 (fr)
YU (1) YU301678A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095122A3 (fr) * 1982-05-14 1984-09-19 Kurt Hacker Procédé continu pour le traitement par la chaleur et/ou la pression de matériaux plats souples et flexibles et installation pour l'application du procédé
FI68656C (fi) * 1984-01-25 1985-10-10 Leena Viljanmaa Foerfarande och anordning foer spaenning av hudar
DE8606507U1 (de) * 1986-03-10 1986-04-30 Gebr. Bellmer GmbH + Co KG Maschinenfabrik, 75223 Niefern-Öschelbronn Walze für Pressen
DE3726757A1 (de) * 1987-08-12 1989-02-23 Moenus Turner Maschf Durchlauf-abwelkpresse
US6854301B1 (en) * 2004-04-13 2005-02-15 Albany International Corp. Extended nip press for the leather industry
DK176518B1 (da) * 2006-01-24 2008-06-30 Dansk Mink Papir As Indretning for hel eller delvis tömning/fyldning af et törreaggregat med opretstående ekspansionstaner.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118054A (fr) * 1900-01-01
FR453093A (fr) * 1912-01-17 1913-05-30 Gustav Adolf Schettler Perfectionnements aux machines pour le traitement des cuirs et peaux
BE525016A (fr) * 1952-12-13 1900-01-01
US3040554A (en) * 1959-02-18 1962-06-26 Swift & Co Removing leather from leather press
US3525160A (en) * 1967-05-12 1970-08-25 Jiri Dokoupil Process and arrangement for drainage of wet leather and similar fibrous material
US3707749A (en) * 1970-10-12 1973-01-02 Gen Tire & Rubber Co Variable pressure bed roller
DE2052879A1 (de) * 1970-10-28 1972-05-04 Rotter, Erhard F , Dipl Ing , 4000 Dusseldorf Einrichtung zum Entwässern von durch laufenden Textilbahnen, gegebenenfalls in Prozeßeinheit mit Klotzprozessen
US3699621A (en) * 1970-12-16 1972-10-24 Ici Ltd Rollers
US3798933A (en) * 1972-05-03 1974-03-26 Arendt H Wringer
DE2249369C3 (de) * 1972-10-09 1979-01-18 Josef Dipl.-Ing. 6000 Frankfurt Busek Presse zum Entwässern von Flächengebilden, wie Lederhäuten
DE2351307B2 (de) * 1973-10-12 1977-02-17 Strojosvit, N.P., Krnov (Tschechoslowakei) Vorrichtung zum kontinuierlichen entwaessern von leder oder lederartigem material
DE2615131A1 (de) * 1976-04-07 1977-10-27 Trockentechnik Gmbh Vorrichtung zum befeuchten und konditionieren von ledern und aehnlichen materialien

Also Published As

Publication number Publication date
DE2757257A1 (de) 1979-06-28
EP0002739A1 (fr) 1979-07-11
BR7808401A (pt) 1980-05-20
CS207747B2 (en) 1981-08-31
US4208892A (en) 1980-06-24
DE2757257C3 (de) 1981-11-12
YU301678A (en) 1982-06-30
DE2861175D1 (de) 1981-12-24
ES476176A1 (es) 1979-05-16
DE2757257B2 (de) 1981-03-12
JPS5498301A (en) 1979-08-03

Similar Documents

Publication Publication Date Title
DE2311909B2 (de) Vorrichtung zur kontinuierlichen Druckbehandlung von Bahnen
DE2448794A1 (de) Pressvorrichtung
DE3725528C2 (de) Filterpresse
EP0002739B1 (fr) Presse à essorer
DE2330029C3 (de) Filterpresse zum Entwässern von schlammartigen Gütern
EP0140990A1 (fr) Appareil pour extraire des liquides de matériaux fibrés, feutrés, sous forme d'écheveaux
DE3726757C2 (fr)
DE1635290B2 (de) Vorrichtung zur kontinuierlichen und gleichfoermigen waermebehandlung von laufenden warenbahnen
EP0831174A1 (fr) Procédé et dispositif pour la déshydratation d'une suspension fibreuse
DE2010823A1 (de) Vorrichtung für eine kontinuierliche Entwässerung von Plachmaterialien, insbesondere Ledern
DE733057C (de) Entwaesserungs- oder Abpressmaschine fuer fortlaufend bewegte, nasse Stoffbahnen
EP0649926B1 (fr) Dispositif pour le pressage, le décatissage et le fixage en continu de matières textiles en forme de bande comme des tissus, des tricots et similaires
DE2414762A1 (de) Vorrichtung zur kontinuierlichen herstellung einer endlosen plattenbahn aus verpressten vegetabilischen stoffen
DE2751849A1 (de) Kontinuierlich arbeitende schlammfilterpresse
EP0412250B1 (fr) Dispositif de déshydratation en particulier filtre à bandes presseuses
DE1917758A1 (de) Vorrichtung zum Entwaessern von durchlaessigen Guetern
DE2138489B2 (de) Naßpresse zum Entwässern von Faserstoffbahnen, insbesondere Papierbahnen
DE811073C (de) Papiermaschine
DE1944304A1 (de) Maschine zur Nassbehandlung textiler Flaechengebilde,insbesondere zum kontinuierlichen Walken und Waschen derselben
DE2934026C2 (de) Preß- oder Umlenkwalze für Doppelsiebband-Filterpressen
DE7739125U1 (de) Durchlauf-abwelkpresse
DE3020119A1 (de) Verfahren und vorrichtung zum waschen von vakuumfiltrierbaren materialien, insbesondere papierfaserpulpe
DE2438144A1 (de) Siebbandpresse, insbesondere zur entwaesserung von schlamm in abwaesserklaeranlagen
DE3928847C2 (fr)
AT271178B (de) Vorrichtung zum Herstellen von Faserstoffbahnen, insbesondere Papier- und Pappebahnen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed
ITF It: translation for a ep patent filed

Owner name: DR. ING. A. RACHELI & C.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 2861175

Country of ref document: DE

Date of ref document: 19811224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19821222

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19840901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19841123

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19841231

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19851231

BERE Be: lapsed

Owner name: LOUIS SCHWEIZER G.M.B.H. & CO. K.G. LEDERFABRIK

Effective date: 19851231

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19861231

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19880701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881117

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT