EP0013321B1 - Métier à tisser multiphasé à foule linéaire avec un rotor de tissage - Google Patents

Métier à tisser multiphasé à foule linéaire avec un rotor de tissage Download PDF

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Publication number
EP0013321B1
EP0013321B1 EP79104656A EP79104656A EP0013321B1 EP 0013321 B1 EP0013321 B1 EP 0013321B1 EP 79104656 A EP79104656 A EP 79104656A EP 79104656 A EP79104656 A EP 79104656A EP 0013321 B1 EP0013321 B1 EP 0013321B1
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EP
European Patent Office
Prior art keywords
shed
elements
weaving
beat
linear
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
EP79104656A
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German (de)
English (en)
Other versions
EP0013321A1 (fr
Inventor
Alois Steiner
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.)
Maschinenfabrik Sulzer Rueti AG
Original Assignee
Maschinenfabrik Sulzer Rueti AG
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.)
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Publication date
Application filed by Maschinenfabrik Sulzer Rueti AG filed Critical Maschinenfabrik Sulzer Rueti AG
Priority to AT79104656T priority Critical patent/ATE2384T1/de
Publication of EP0013321A1 publication Critical patent/EP0013321A1/fr
Application granted granted Critical
Publication of EP0013321B1 publication Critical patent/EP0013321B1/fr
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/005—Linear-shed multiphase looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for

Definitions

  • the invention relates to a row shed weaving machine with a weaving rotor, which has the warp threads over a predetermined path in their up and down position holding elements and the inserted weft threads striking stop elements, and with a control means arranged in the running direction of the warp threads in front of the weaving rotor for lateral deflection and optional assignment each warp thread to a specialist holding element that defines the high or low position.
  • the row shed weaving machines together with the wave shed weaving machines form the genus of multi-phase weaving machines, in which a plurality of weft threads which are shifted step by step against each other are always entered into shifts which are also shifted and migrating step wise. While in the wave shed weaving machines the shed weaves are simultaneously formed over the weaving width and move in the weft direction, in the row shed weaving machines one shed is formed over the entire weaving width and the successively formed shed weaves move several times in the warp direction at the same time.
  • each shed holding member has a thread support located at the height of the high or low shed and is provided for a plurality of warp threads, so that, for example in the case of plain weave, four warp threads approach each support come to lie.
  • the invention is intended to provide a row shed weaving machine in which no reading errors can occur due to immersing the stop elements in the warp threads already occupying the high or low position.
  • each space between stop elements adjacent in the weft direction is assigned two compartment-holding members for the high or low position, and that a guide element for the warp threads is arranged on the weaving rotor between each two stop elements in succession in the direction of rotation, the alignment line of which lies within the space between adjacent stop elements in the weft direction.
  • the reading of the warp threads into the correct tube is significantly improved compared to all known weaving rotors of row shed and rotation shafts of shed weaving machines.
  • the problem of reading the warp threads into the correct tube has so far always been solved by arranging a guide comb at the smallest possible distance from the elements immersed in the warp threads, the individual slats of which are aligned with these elements as precisely as possible. It was hoped that a warp thread lying between two lamellae of the guide comb would also lie in the correct tube if these lamellae were exactly aligned with the immersing elements. Practical experience with shaft weaving machines with rotary reeds has shown that these hopes are not fulfilled.
  • the guide teeth are not currently aligned with the stop elements, but their alignment line lies in the space between them, that is to say within the respective tube.
  • this leads to the fact that each warp thread is applied to its guide element from the left or from the right and is thus reliably read into the correct tube of the stop elements.
  • the weaving rotor 5 which rotates in operation in the direction indicated by an arrow P, is of cylindrical shape and is provided on its circumference in the direction of rotation alternately with lamella combs 10 and 11 extending in the longitudinal direction of the weaving rotor and thus in the weft direction.
  • the lamellar combs 10 consist of stop lamellas 12 for striking the weft threads inserted
  • the lamellar combs 11 consist of guide lamellae 13 between which the holding elements 14 and 15, which define the up or down position of the warp threads 4, are alternately arranged.
  • the warp threads 4 are held in their up or down position by the shed holding members 14 and 15 over the entire wrap angle a of about 120 °.
  • the weaving compartments thus formed move one behind the other to the fabric stop edge, with a weft thread being inserted in each compartment in a staggered manner in the time in which the compartments are open.
  • a unit 16 for preparing and inserting weft threads is arranged next to one of the end faces of the weaving rotor 5.
  • This unit 16 does not form part of the invention and is therefore not described in detail.
  • Any suitable weft insertion system can be used in connection with the weaving rotor 5, be it one with shooters, with boats, with projectiles, with reciprocating rods or bands or with a fluid.
  • entry systems known in connection with row shed looms, reference is made to DE-AS 1 089695 and to US Pat. Nos. 2,742,058, 4,122,871, 4,122,872 and 4,129,153.
  • Fig. 2 it can be seen that along the jacket of the weaving rotor 5, on the one hand, the stop lamellae 12 of the lamella combs 10 and, on the other hand, the guide lamellae 13 of the lamellar combs 11 are each aligned and that the alignment line of the individual guide lamellae 13 in the middle of the intermediate space, the so-called tube, of the assigned stop plates 12 and the line of alignment of the stop plates 12 run in the middle of the tube of the associated guide plates 13.
  • the specialist holding members 14 on the one hand and the specialist holding members 15 on the other hand are in alignment.
  • the control device 3 consists of several, according to the illustration, four rods 17 arranged parallel to the firing direction, which are connected to an actuating device 18 and can be moved back and forth by the latter in the direction of the double arrow A.
  • the rods 17 are provided with guide eyes for the warp threads 4, so that the latter are laterally deflected when the rods 17 move in the longitudinal direction thereof.
  • the number of rods 17 depends on the type of binding to be produced, two such rods 17 are sufficient for plain weave, and more rods 17 must be used for more complicated bindings.
  • the actuating device 18 is of the type of a conventional control mechanism for dobby machines, which uses a program to move each of the rods 17 corresponding to a conventional shaft before each immersion of one of the two lamellar combs 10 or 11 in the warp threads 4 into one of its two end positions. In this end position, the relevant warp thread 4 rests within its tube on the left or the right of the lamellae 12 or 13 delimiting this tube and, due to the shifting of half a tube pitch between the successive lamella combs 10 and 11, will certainly be in the correct tube of the next one Lamellar comb read.
  • FIG. 3 The figure schematically shows two lamella combs 11 and 11 2 with guide lamellae 13 and the lamella comb 10 running between them with stop lamellae 12.
  • the warp threads 4 shown with a simple line are located in the lamella comb 11 1, respectively in the low position and are guided by the rod 17 2 , as has already been said.
  • the other two rods 17 shown in FIG. 1 are omitted, so that every second tube has no warp in the fin comb 10 and only one warp thread 4 in the fin comb 11.
  • the rods 17 1 and 17 2 must be moved by the actuating device 18 (FIG. 2) in such a way that the warp threads 4 guided by them assume the positions shown with solid lines.
  • the warp threads 4 guided by the rod 17 1 are moved to the left and the warp threads 4 guided by the rod 17 2 are moved to the right until they rest against the stop lamella 12 delimiting their tube on the left or right.
  • the guide slats 13 can each enter between two spread-out warp threads 4 into the warp thread array, one of two of these spread-apart warp threads 4 always in a tube of the slat comb 11 2 with a compartment holding element 14 for the high shed position and the other with one a compartment holding member 15 for the low position.
  • the weaving rotor 5 is shown in detail.
  • this consists of a tubular roller 20, which is connected to a drive shaft 21 and is provided on its jacket with a plurality of grooves 22 and 23, which run parallel to the longitudinal axis of the rotor and thus to the weft insertion direction, for receiving the lamellar combs 10 and 11, respectively.
  • the grooves 22 and 23 have an L-shaped cross section, two grooves 22 and 23 each form an associated pair, in which the transverse legs of the L-shaped profile point away from one another.
  • the jacket of the roller 20 has a total of 14 such pairs of grooves.
  • This construction of the weaving rotor 5 from the roller 20 with the circumferential grooves 22 and 23 means that the shed retaining members 15 (FIG. 3) for the low-level position can be dispensed with, since the warp threads 4 are supported in the low-level position as shown in FIG. 4, through the jacket of the roller 20 can be done.
  • the individual lamellar combs 10 and 11 have, instead of the compartment holding members 15 (FIG. 3) for the low compartment position, spacer elements 24 (FIGS. 5, 6) which at most slightly protrude beyond the jacket of the roller 20.
  • both the guide slats 13 and the shed holding members 14 are provided with a recess 19 for the high shed position of the warp threads 4.
  • These recesses 19 form a channel for the weft insertion for each lamella comb 11.
  • two guide slats 13 alternate between a shed retaining element 14 for the high shed position of the warp threads 4 and a spacer element 24, and that two stop slats 12 also delimit a spacer element 24.
  • the stop lamellae 12 of the adjacent lamella comb are each aligned with the tube center of the lamella comb formed by the guide lamellae 13.
  • there are two warp threads 4 in each tube of each of the two fin combs in the tube between two guide fins 13 there are both warp threads 4 together either in the up or down position, in the tube between two stop blades 12 there is one warp thread 4 in high - and the other in a deep compartment.
  • This representation corresponds to the use of four rods 17 indicated in FIG. 1. In contrast, only two rods 17 are shown in FIGS. 2 and 3 for the sake of clarity. Accordingly, every second tube between the stop plates 12 is empty.
  • Each lamella comb 11 is constructed from compartment holding members 14 for the high position, from guide lamellae 13 and from spacer elements 24.
  • the lamellar combs 10 are constructed from spacer elements 24 and from stop lamellae 12.
  • the compartment holding organs 14 and the spacing elements 24 are substantially thicker than the stop and guide lamellae 10 and 13.
  • the thickness of the compartment holding members 14 and / or spacer elements 24 arranged between the lamellae of one lamella comb 11 or 10 is preferably three times the thickness of the lamellae of the other lamella comb 11 or 10.
  • each lamellar comb 10, 11 are connected, for example by gluing, to comb portions of, for example, 100 mm in length, and these portions are inserted into the corresponding grooves 22 or 23 and fixed therein.
  • the individual lamella combs 10 or 11 can simply be exchanged without the entire weaving rotor 5 having to be dismantled.
  • the individual elements forming the lamellar combs 10, 11 each have a foot part, the cross section of which is adapted to that of the grooves 22 and 23.
  • the spacer elements 24 are dimensioned such that their upper end does not protrude from the casing of the roller 20 or only slightly.
  • the compartment holding members 14 for the high compartment position, the stop lamellae 12 and the guide lamellae 13 each have an upper part 25, 26 or 27 projecting beyond the lateral surface of the roller 20 after their foot part.
  • the upper part 25 of the shed retaining members 14 for the high shed position has the shape of a finger curved counter to the direction of rotation P of the weaving rotor 5, the outer curved surface of which forms the support for the warp threads 4 in its shed position and the inner curved surface of which forms the guide channel 19 for the weft insertion from above and in Direction of rotation P seen from the front limited. From below, the guide channel 19 is delimited by the jacket of the roller, towards the rear from the stop elements 12 of the adjacent lamella comb 10.
  • the upper part 27 of the guide slats 13 has the shape of a parallelogram-shaped wing, which is provided on its edge facing the roller 20 with a contour corresponding to the inner curvature surface of the finger-shaped upper part 25 of the compartment holding members 14 for the high compartment position, which also the channel 19 from above and from limited at the front.
  • the upper part 26 of the stop slats 12 has a sickle-like shape.
  • the tip of this sickle faces the direction of rotation P to the rear.
  • the outer edge of this upper part 26 serves to strike the inserted weft threads and therefore protrudes the furthest from all the above parts in the radial direction away from the jacket of the roller 20.
  • the outer edge of the upper part 27 of the guide slats 13 is somewhat closer to the roller 20 and the outer surface of curvature of the finger-shaped upper part 25 is slightly less than half the distance between the jacket of the roller 20 and the outer edge of the upper part 26 of the stop slat len 12 striking the weft threads.
  • the shape and dimensions of the lamellae 12 and 13 and the mutual distance of the grooves 22 and 23 and thus the lamella combs 10 and 11 are selected such that there is only a small distance of approximately 1 between the individual lamella combs mm or less.
  • the weaving rotor 5 could also be constructed in the manner of the rotary reed known from the shaft weaving looms from individual lamellae in the form of circular plates provided with projections.
  • a web rotor of this type would have to be completely removed, disassembled, reassembled and reinstalled practically every time the article was changed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Soil Working Implements (AREA)

Claims (13)

1. Métier à tisser à foule linéaire avec un rotor. de tissage qui comporte des organes de maintien de foule maintenant les fils de chaîne dans leur position de foule haute ou basse suivant un trajet donné à l'avance et des éléments de battage battant les fils de trame insérés, et avec un moyen de commande disposé avant le rotor de tissage dans le sens de cheminement des fils de chaîne, pour la déviation latérale et l'association sélective de chaque fil de chaîne à un organe de maintien de foule déterminant la position de foule haute ou basse, caractérisé en ce qu'à chaque espace intermédiaire, entre des éléments de battage (12) voisins dans la direction d'insertion du fil de trame sont associés respectivement deux organes de maintien de foule (14, 15) pour la position de foule respectivement haute et basse et en ce que sur le rotor de tissage (5) est disposé, respectivement entre deux éléments de battage successifs dans son sens de rotati9n (P), respectivement un élément de guidage (13) pour les fils de chaîne (4), dont l'alignement est situé à l'intérieur de l'espace intermédiaire entre des éléments de battage voisins dans la direction d'insertion de fil de trame.
2. Métier à tisser à foule linéaire selon la revendication 1, caractérisé en ce que l'alignement de chaque élément de guidage (13) s'étend dans le plan médian de l'espace intermédiaire entre des éléments de battage (12) voisins dans la direction d'insertion de fil de trame.
3. Métier à tisser à foule linéaire selon la revendication 2, caractérisé en ce que les éléments de battage (12) sont aménagés uniformément à la périphérie du rotor de tissage (5) sous la forme de premiers peignes à lamelles (10) s'étendant parallèlement à son axe longitudinal et en ce qu'entre respectivement deux premiers peignes à lamelles successifs est disposé respectivement un second peigne à lamelles (11) formé d'éléments de guidage (13) et qui s'étend également parallèlement à l'axe longitudinal du rotor de tissage.
4. Métier à tisser à foule linéaire selon la revendication 3, caractérisé en ce que les organes de maintien de foule (14,-15) sont disposés à l'intéri- ceur de chaque deuxième peigne à lamelles (11), auquel cas respectivement entre deux éléments de guidage (13), voisins dans la direction d'insertion du fil de trame, est disposé alternativement un organe de maintien de foule (14) pour la position de foule haute ou un tel organe (15) pour la position de foule basse.
5. Métier à tisser à foule linéaire selon la revendication 4, caractérisé en ce que les organes de maintien de foule (14) pour la position de foule haute et les organes de maintien de foule (15) pour la position de foule basse sont disposés respectivement le long de circonférences périphériques sur la surface latérale du rotor de tissage (5), auquel cas le long de chaque circonférence périphérique n'existe respectivement que des organes de maintien de foule de l'un ou de l'autre type.
6. Métier à tisser à foule linéaire selon l'une des revendications 1 à 5, caractérisé en ce que le rotor de tissage (5) comporte un tambour tubulaire (20) lequel est pourvu, à sa surface périphérique, de rainures (22, 23) parallèles à l'axe longitudinal du rotor de tissage pour recevoir des éléments de battage (12) et des organes de maintien de foule (14).
7. Métier à tisser à foule linéaire selon la revendication 6, caractérisé en ce que les organes de maintien de foule (15) pour la position de foule basse sont remplacés par des éléments espaceurs formant entretoises (24) dépassant en saillie au plus faiblement de la surface latérale du tambour (20) et en ce que l'appui, pour les fils de chaîne (4) dans la position de foule basse, est formé par ces éléments espaceurs formant entretoises ou par la surface latérale du tambour.
8. Métier à tisser à foule linéaire selon la revendication 6, caractérisé en ce qu'à la surface latérale du tambour (20) sont aménagées entre dix et vingt paires de rainures (22, 23).
9. Métier à tisser à foule linéaire selon l'une des revendications 6 à 8, caractérisé en ce que les organes de maintien de foule (14) pour la position de foule haute présentent, à leur partie (25) dépassant en saillie de la surface latérale du tambour (20), la forme d'un doigt ecourbé en sens contraire au sens de rotation (P) du rotor de tissage (5) et dont la surface de courbure externe sert d'appui aux fils de chaîne (4) dans leur position de foule haute tandis que sa surface de courbure interne délimite, depuis le haut et depuis l'avant dans le sens de rotation, un canal de guidage (19) pour l'insertion du fil de trame.
10. Métier à tisser à foule linéaire selon la revendication 9, caractérisé en ce que le canal de guidage (19) pour l'insertion du fil de trame est délimité d'en bas par la surface latérale du tambour (20) et, vers l'arrière dans le sens de rotation (P) du rotor de tissage (5), par les éléments de battage (12) du premier peigne à lamelles (10) voisin.
11. Métier à tisser à foule linéaire selon l'ensemble des revendications 1 et 10, caractérisé en ce que les éléments de guidage (13) présentent, à leur partie (27) dépassant en saillie de la surface latérale du tambour (20), la configuration d'une ailette en forme de parallèlogramme, laquelle est munie, à son bord orienté vers le tambour, d'un contour correspondant à la surface de courbure interne de la partie (25),en forme de doigt des organes de maintien de foule (14) pour la position de foule haute, lequel contour délimite le canal de guidage (19) depuis le haut et depuis l'avant.
12. Métier à tisser à foule linéaire selon l'ensemble des revendication 3 et 11, caractérisé en ce qu'à l'intérieur des premiers peignes à lamelles (10) est respectivement prévu un élément espa- ceur formant entretoise (24) respectivement entre deux éléments de battage (12).
13. Métier à tisser à foule linéaire selon la revendication 12, caractérisé en ce que les éléments respectivement de battage (12) et de guidage (13) présentent des épaisseurs égales et en ce que l'épaisseur, des organes de maintien de foule pour la position de foule haute (14) et des éléments espaceurs formant entretoises (24), est égale respectivement au triple de l'épaisseur des éléments de battage.
EP79104656A 1978-12-07 1979-11-23 Métier à tisser multiphasé à foule linéaire avec un rotor de tissage Expired EP0013321B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104656T ATE2384T1 (de) 1978-12-07 1979-11-23 Reihenfachwebmaschine mit einem webrotor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12511/78 1978-12-07
CH1251178A CH633590A5 (de) 1978-12-07 1978-12-07 Reihenfachwebmaschine mit einem webrotor.

Publications (2)

Publication Number Publication Date
EP0013321A1 EP0013321A1 (fr) 1980-07-23
EP0013321B1 true EP0013321B1 (fr) 1983-02-02

Family

ID=4383693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104656A Expired EP0013321B1 (fr) 1978-12-07 1979-11-23 Métier à tisser multiphasé à foule linéaire avec un rotor de tissage

Country Status (8)

Country Link
US (1) US4290458A (fr)
EP (1) EP0013321B1 (fr)
JP (1) JPS5580533A (fr)
AT (1) ATE2384T1 (fr)
CH (1) CH633590A5 (fr)
CS (1) CS216198B2 (fr)
DE (1) DE2964677D1 (fr)
SU (1) SU1001865A3 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH645418A5 (de) * 1980-03-27 1984-09-28 Rueti Ag Maschf Einrichtung zur fuehrung eines mittels eines stroemenden fluidums angetriebenen schussfadens im webfach einer webmaschine.
CH657875A5 (de) * 1982-04-20 1986-09-30 Rueti Ag Maschf Lamellenkamm fuer webmaschinen, insbesondere fuer den webrotor von reihenfachwebmaschinen, und verfahren zu dessen herstellung.
EP0111072B1 (fr) * 1982-12-10 1986-05-07 Maschinenfabrik Sulzer-Rüti Ag Métier à tisser multiphasé à foule linéaire avec un rotor de tissage
DE3369711D1 (en) * 1982-12-14 1987-03-12 Rueti Ag Maschf Linear shed multiphase loom with a weaving rotor
DE3364083D1 (en) * 1983-10-12 1986-07-17 Rueti Ag Maschf Linear-shed multiphase loom with a weaving rotor
DE3406129C1 (de) * 1984-02-21 1985-07-25 Maschinenfabrik Sulzer-Rüti AG, Rüti, Zürich Webrotor fuer Reihenfachwebmaschinen
EP0456599B1 (fr) * 1990-05-11 1998-05-27 Sulzer RàœTi Ag Métier à tisser multiphasé à foule linéaire
DE59306953D1 (de) * 1992-05-15 1997-09-04 Rueti Ag Maschf Reihenfachwebmaschine
EP0582763B1 (fr) * 1992-08-11 1996-10-16 Sulzer RàœTi Ag Dispositif pour maintenir les fils de trames dans des métiers à tisser multiphase à foule linéaire
EP0584433A1 (fr) * 1992-08-28 1994-03-02 Sulzer RàœTi Ag Dispositif à tramer pour un métier à tisser multiphase à foule linéaire
EP0592749A1 (fr) * 1992-10-16 1994-04-20 Sulzer RàœTi Ag Procédé de tissage et métier à tisser pour la fabrication de tissu-éponge
EP0645483B1 (fr) * 1993-09-24 1997-04-16 Sulzer RàœTi Ag Dispositif à tramer pour un métier à tisser multiphase à foule linéaire et métier à tisser multiphase à foule linéaire avec un dispositif à tramer
EP0828878B1 (fr) * 1995-06-02 1999-08-25 Sulzer RàœTi Ag Composant monolithique de maintien du pas pour le rotor de tissage d'un metier a tisser avec ouverture des fils en serie
DE19617145A1 (de) * 1995-06-02 1996-12-05 Rueti Ag Maschf Fachhalteelement zu dem Webrotor einer Reihenfachwebmaschine
US5941288A (en) * 1995-06-02 1999-08-24 Sulzer Rueti Ag Shed holder element for the weaving rotor of a series shed weaving machine
SE521839C2 (sv) 1997-04-14 2003-12-09 Tape Weaving Sweden Ab Vävt material bestående av varp och väft och hjälpmedel för att tillverka detsamma
EP3425095B1 (fr) * 2017-07-07 2020-09-30 Groz-Beckert KG Peigne de métier et son procédé de fabrication

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH107831A (de) * 1922-04-10 1924-11-17 Guyer Ernst Drehkörper von Fachbildungsvorrichtungen für Handwebevorrichtungen und Webstühle.
US2742058A (en) * 1950-01-13 1956-04-17 Gentilini Augusto Loom
US2893440A (en) * 1955-01-15 1959-07-07 Dev Textile Sa Rectilinear loom
FR1598476A (fr) * 1967-12-29 1970-07-06
CH543621A (de) * 1972-04-14 1973-10-31 Rueti Ag Maschf Einrichtung zum Bilden von Gewebebindungen
IT1063743B (it) * 1976-02-10 1985-02-11 Bonetti Danilo Telaio per tessitura
JPS54158271A (en) * 1978-06-02 1979-12-13 Citizen Watch Co Ltd Electronic watch with calendar

Also Published As

Publication number Publication date
JPS5580533A (en) 1980-06-17
ATE2384T1 (de) 1983-02-15
SU1001865A3 (ru) 1983-02-28
EP0013321A1 (fr) 1980-07-23
CH633590A5 (de) 1982-12-15
CS216198B2 (en) 1982-10-29
JPS6317935B2 (fr) 1988-04-15
US4290458A (en) 1981-09-22
DE2964677D1 (en) 1983-03-10

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