EP0039009B1 - Verfahren und Vorrichtung zum pneumatischen Eintragen des Schussfadens in die Schussfadenträger einer mehrsystemigen Webmaschine - Google Patents
Verfahren und Vorrichtung zum pneumatischen Eintragen des Schussfadens in die Schussfadenträger einer mehrsystemigen Webmaschine Download PDFInfo
- Publication number
- EP0039009B1 EP0039009B1 EP81102934A EP81102934A EP0039009B1 EP 0039009 B1 EP0039009 B1 EP 0039009B1 EP 81102934 A EP81102934 A EP 81102934A EP 81102934 A EP81102934 A EP 81102934A EP 0039009 B1 EP0039009 B1 EP 0039009B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weft yarn
- injector
- weft
- movement
- accordance
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D33/00—Multiple looms, i.e. two or more looms assembled together, whether or not they have mechanisms in common
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/26—Travelling-wave-shed looms
- D03D47/261—Preparation of weft
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
Definitions
- the invention relates to a method for the pneumatic insertion of the weft into the weft magazine of the weft carrier of a multi-system weaving machine, in which the weft magazines of the weft carrier are each successively loaded with a cut weft piece in such a way that the weft piece is conveyed into the weft magazine by means of an air jet is, the air jet is moved during loading with the weft thread carrier.
- the invention relates to a device for performing this method, with an injected with compressed air injector to which the weft thread can be fed from a thread measuring and delivery device and which is arranged close to the path of movement of the weft thread carrier of a multi-system weaving machine and along part of this path of movement in the same direction as a weft thread carrier movably mounted and coupled with a correspondingly directed movement driving device which is synchronized with the movement of the weft thread carrier.
- multi-armed deflection wheels are provided in the path of movement of the loomers, and their arms are designed to accommodate one loomer, each rotating around parallel axes.
- the shooters picked up by the arms of the revolving deflection wheels are moved synchronously over a certain angular arc of, for example, 120 or 180 °, so that the mouth of an outlet nozzle lying in one arm of the deflection wheel is opposite a thread inlet opening of the assigned shooter and is fed with a cut weft piece can.
- the weft piece is conveyed into the weft magazine by means of an air jet while the weaving machine is running, the outlet nozzle and thus the air jet being moved with the weaving machine during loading.
- each weaving shifter necessarily moves at the same speed as the associated outlet nozzle during the loading of its weft magazine, the inserted weft thread is piled up in the weft magazine and compressed into a plug consisting of zigzag-like thread loops.
- the result of this is that there is a risk that the weft thread will not be pulled smoothly out of the weft thread magazine during the weaving in, but that the individual thread loops of the stopper will get caught in one another and form knots.
- the invention has for its object to feed the weft carrier of a multi-system weaving machine pneumatically within a short, lying between two adjacent fabric sections or webs of movement of the weft carrier with the weft thread required for the respective fabric section width, without thereby accumulating the weft at one point Weft magazine of a weft thread carrier or an inadmissible strain on the weft thread would occur or an extension of the weft thread magazine of the individual weft thread carriers would be necessary.
- the air jet conveying the weft thread is moved at a lower speed than the weft thread carrier during the loading of a weft thread magazine, it executes a relative movement to the weft thread carrier, with the result that the weft thread is distributed evenly over the individual chambers of the weft thread magazine in which separate thread sheets are stored, which can not intertwine. This prevents the weft thread from being compressed into a stopper.
- This relative movement of the air jet to the weft carrier during the loading of the weft magazine also ensures that a longer time is available for loading the weft magazine compared to an air jet coming from a stationary injector, which can be used for this purpose without undue stress of the weft thread either increase the speed of the weft thread carrier, and thus the work performance of the entire weaving machine, significantly and / or insert longer weft thread pieces and thus produce particularly wide fabric webs.
- the difference between the speed of each weft thread gers and the slower moving air jet in such a way that - as mentioned - no accumulation of the weft occurs at one point of the weft magazine, but there is a uniform distribution of the weft in the weft magazine.
- the air jet In order to utilize the entire magazine length, it is expedient for the air jet to be shifted relative to the weft thread carrier by an amount corresponding to the length of the weft magazine during the insertion of the weft thread into the weft thread magazine.
- the weft yarn is at least partially guided laterally on its way to the air jet, which happens, for example, as a result can that the thread path runs through a preferably transparent plastic tube or a plastic hose.
- the air jets can be selected according to the program for inserting the weft into the weft magazine. An electronic repeat control can be used for this.
- the use of two air jets can also save time when filling the weft magazine of the respective weft carrier. After the insertion of the weft into a weft magazine has ended, the air jet takes a certain time to return to its starting position; if only an air jet is used, this return time cannot be used to fill a weft magazine.
- the weft When the insertion of the weft into the weft magazine is completed, the weft is cut off at the edge of the fabric; It is particularly expedient if its end is automatically retracted into an injector generating the air jet when the air jet is returned to the starting position, so that it does not protrude from the injector when the next weft magazine is loaded, which leads to the risk of tangling, etc. could bring with it.
- the device for carrying out the new method mentioned at the outset is characterized in accordance with the invention in that the injector is driven by its drive device at least during the insertion of the weft thread into the weft thread magazine of the respective weft thread carrier, starting from an initial position via a predetermined path at a predetermined speed reduction ratio the speed of the weft thread carrier is driven slower speed.
- a slide guide can be arranged in the vicinity of the movement path of the weft thread carrier, on which the injector is slidably mounted.
- This sliding guide expediently consists of two parallel guide rails, between which the injector having a fitted sliding piece is guided.
- the arrangement can be such that the drive device has a driver which can be automatically brought into engagement with the injector in the starting position and which can be uncoupled automatically from the injector after passing through the predetermined path, the injector then having a becomes effective, which brings it back into the starting position, which has about a return spring tension that can be tensioned when the injector moves with it.
- the drive device i.e. H. the chain is expediently driven via a toothed gear which is in engagement with a toothing on a part of the weft thread drive which is moved together with the respective weft thread carrier.
- the driver releases the injector so that it can be quickly returned to the starting position, from where it is moved forward either in synchronism with the next weft carrier either by the same driver or the next driver of the chain.
- a thread guide element is arranged in the thread path of the weft to the injector, through which the At the end of the insertion into the weft magazine, the weft thread is held at a point from which the thread travel path to the injector returned to the starting position is longer than to the injector which is moved to the end of its path.
- the device can have a plurality of injectors, each of which is associated with its own weft thread; each injector can then optionally be coupled to the drive device.
- the injectors can be arranged next to one another to the side of the movement path of the weft thread carrier, one injector in each case being able to be moved into the starting position for the co-movement by means of an adjusting device.
- the injectors can each be mounted between two guide rails, while the guide rails themselves are adjustably mounted transversely to the path of movement of the weft thread carriers.
- the guide rails are adjusted laterally, so that ineffective injectors can now return to their starting position without hindrance, while the injector intended for the next filling of the weft magazine moves into the starting position for the co-movement and there comes into engagement with the drive device.
- the injectors can also be arranged in a register which is adjustably mounted transversely to the movement path of the weft thread carrier. After the respective filling process, the register is shifted in the interval until the next weft magazine is filled so that the injector with the desired weft color is brought into the starting position for movement with the next weft carrier.
- This adjustment of the register can take place, for example, via a rack and pinion drive inevitably as a function of the movement of the weft thread carriers in accordance with a program which is contained on a suitable program carrier, for example a punch card or a cam chain or in a memory.
- a suitable program carrier for example a punch card or a cam chain or in a memory.
- the injectors can be preceded by a measuring and delivery device which has a permanently driven thread drum, against the surface of which the weft threads of the injectors can be pressed at times by means of pressure rollers, the pressure movement of the individual pressure rollers being controlled as a function of the injector movement.
- Each injector is assigned its own pressure roller, which supplies the weft thread according to the program.
- the axial length of the delivery drum is dimensioned such that the required number of pressure rollers can act side by side.
- FIG. 1 shows a multi-system weaving machine in a double-flat, so-called “back-to-back” construction.
- the machine is set up for the simultaneous production of four fabric webs 1, each of which is wound up into a bale of goods 3 mounted on the machine frame 2.
- the warp threads 5 drawn from the warp beams 4 rotatably supported on the underside of the machine frame 2 are progressively moved apart in the direction of an arrow 6 by healds 7 movable transversely to the fabric web 1 to form compartments 8, each compartment being traversed by a weft thread carrier 9, the shape of which can be seen in detail, for example, from FIGS. 2 and 7.
- the weft thread carriers 9 run one behind the other at a predetermined distance in the manner shown in FIG. 3 on a guideway which is formed on one side by a reed 10 and on the other side by the shafts of the healds 7. They are driven via block-like segments 11, which are longitudinally movably guided on the machine frame 2 and are magnetically coupled to the individual weft thread carriers 9 via permanent magnets 12.
- the segments 11 are fastened to one another on an end-to-end chain 11a and passed over two vertical, polygonal drive rollers 13 rotatably mounted in the machine frame 2, as can be seen from FIG.
- the segments 11 carry, on their underside facing the healds 7, guide tracks (not shown in detail) into which feet formed on the healds of the healds 7 protrude, as is the case in principle in US Pat 963 208 is explained.
- weft flap lamellae 15 project outwards through the warp threads, which serve to strike the respectively inserted weft thread between successive weft thread carriers 9, as is indicated at 16 in FIG. 1.
- the machine has 1 z. B. eight weft carriers 9, d. H. eight web systems.
- the insertion of the weft thread into the weft thread carrier 9 takes place in the area between two adjacent fabric webs 1 by means of a weft thread insertion device 17 assigned to each fabric web, one of which is illustrated in detail in FIGS. 2 to 5 and of which the weaving machine according to FIG. 1 has four pieces .
- the weft insertion device 17 shown in the above-mentioned figures has a slide guide 19 mounted on two parallel main supports 18 of the machine frame 2, which consists of three parallel guide rails 19 which are fixedly connected to one another at a predetermined distance and which run parallel to the main rails 18 in two at the ends the main rails 18 fixed cross rails 21 are mounted transversely.
- a slide 22 is fitted, which carries an injector 23, to which a weft thread 24 is fed, which comes from a thread delivery device shown at 25 or 26, which in turn pulls it off from a package 27 or 28.
- the injector 23 shown there in the middle opens in the immediate vicinity of the weft magazine of the weft carrier 9 shown at 29.
- an endless chain 30 which is guided over two deflection rollers 31 which are rotatably mounted on corresponding axes 32 and 33 on one of the main carriers 18.
- One of the deflection rollers 31 is connected in a rotationally fixed manner to a gearwheel 34, which meshes with a gearwheel 37 which is seated on a shaft 36 mounted in the main carriers 18 and which in turn is rotationally fixed with a gearwheel 38 located on the other side of the main carrier 18 connected is.
- the gear 38 is in engagement with a rack 39, which consists of individual rack sections, each having the length of one of the segments 11 to which they are attached.
- the chain 30 carries, as can be seen from FIG. 5, four driving teeth 40 in the exemplary embodiment shown, which are arranged at the same distance from one another.
- the upper run of the chain 30 is arranged parallel to the slide guide 19 such that each driver 40 grips the slide 22 of the injector 23 standing in the middle (FIG. 3) in a starting position I (FIG. 5) and along the slide guide 19 over a predetermined one Can move to a final position II.
- the respective driver is brought radially through the right deflection roller 31 in the manner shown in FIG. 5 to the slider 22 in the starting position I and brought into engagement therewith; while on the other hand the left deflection roller 31 in the end position II transports the driver 40 radially away from the slide guide 19 and him automatically disengages from the slider 22.
- Each of the injectors 23 is connected to a return device which is designed in the form of a spring tension 41 acting on it, which is anchored at the end in a housing 42.
- a spring 43 is assigned to the spring balancer 41, against which the slide piece 22 which is in the starting position I abuts and which limits its return movement.
- the slide guide 19 carries two laterally projecting coaxial bolts 44, 45 which are slidably guided in corresponding bores 46, 47 of the main carrier 18.
- the one bolt 44 on the outside of the main carrier 18 is under the action of a compression spring 48 which is supported at the end against the bottom of a spring sleeve 49 inserted in the associated main carrier 18 and which supports the sliding guide 19.
- the other pin 45 is supported at the end against a double-armed lever 52 which is pivotably mounted on a main support 18 at 51 and which bears a pressure roller 53 which can come into engagement with a cam track 54 arranged laterally on the respective segment 11 in the region of the rack 39 (FIG 4).
- a weft carrier 9 comes into the area of a weft insertion device 17, as shown on the right in FIG. 5, one of the injectors 23 (the right one in FIG. 3) is in the starting position I, in which it is in the path of movement of the drivers 40.
- the injector 23 is taken along by a driver 40 and, synchronized with the movement of the weft thread carrier 29, is transferred to the end position II at a predetermined speed, in which the driver 40 comes out of engagement with the slider 22.
- the movement of the carriers 40 is matched to that of the weft thread carrier 29 in such a way that the injector 23 carried by a carrier 40 is moved along with the weft thread carrier 9 on its way between the starting position I and the end position II.
- the speed reduction ratio between the chain 30 and the weft carrier 9 is chosen so that during this movement of the slide 22 the injector 23 is displaced relative to the weft carrier 9 by the length of the weft magazine.
- the pressure roller 56 or 56a associated in the weft thread 24 or 24a feeding it is pressed against the thread delivery drum 57, so that this weft thread is inserted into the injector 23, which in turn is located at the mouth of the injector 23 is blown into the air-permeable weft magazine 29.
- the weft thread is cut off at the edge of the fabric by a cutting device, not shown, after it has been partially woven in, held in place and inserted by the continuing weft thread carrier 9 into the compartment of the fabric web 1 has been.
- the pitch circle circumference of the gear 38 corresponds exactly to the length of a weaving system (or a multiple thereof).
- the gear 34 is thus driven in a reduction ratio of 2: 1, the distance between the drivers 40 on the chain 30 corresponding to a quarter of the system length in the exemplary embodiment shown. With a system length of 24 cm, a driver moves 12 cm between the two positions and II.
- the injector 23 accompanies the weft magazine 29 between positions I and II on a path of 10 cm during the reduction ratio 2: 1, which means that for the insertion of the weft thread into the weft magazine 29 a path is available which corresponds to a weft magazine length of 20 cm. Since the distance between the drivers 40 is 12 cm and the injector 23 is only moved over a distance of 10 cm when inserting the weft thread, a free remaining distance of 2 cm remains, which is used for the resulting free time, the slider 22 and thus returning the injector 23 from its end position II to the starting position I by means of the spring tension 41, as has been explained. This ensures that the slider 22 is properly in the starting position I before it is brought into engagement with the next driver 40 and in turn transported to the end position II.
- the pressure roller 53 runs again from the cam track 54, so that the slide guide 19 moves to the right in relation to FIG. 3, and thus in turn the first injector on its slide 22 from the next driving tooth 40 is gripped while the other injector is now ineffective to the side of the chain 30, as shown in Figure 3 on the right.
- the two injectors 23 are thus used alternately to supply the weft.
- control can also be pushed according to the program, for example by a programming device, so that a weft color change can be carried out by means of the injectors 23.
- the slide guide 19 is then controlled via a rack and a gearwheel by the programming device via a suitable adjusting device, which causes the slide guide 19 to be moved back and forth by the double-armed lever 52.
- FIG. 7 an embodiment is illustrated in which four injectors, designated 23a to 23d, are each joined together with their pressure pieces 22a to 22d to form a register which, like its sliding guide 19, can be adjusted transversely to the movement path 62 of the weft thread carrier 9.
- the to-and-fro adjustment of the register formed by the injectors 23a to 23d, indicated by an arrow 63 is carried out according to the program via a programming device and an actuating device controlled by it.
- the invention has been described above using a double-flat weaving machine. In principle, it can of course also be used for a circular loom or a loom with a different structure.
- a thread guide element 65 in the form of a fixed pin (FIG. 2) is provided, which is arranged in such a way that the thread travel from the pin 65 holding the weft thread to the injector 23 in the starting position I is longer than to the injector in end position II. It is thereby achieved that after the weft thread has been cut off on the injector 23 standing in the end position 11 during the return movement of the injector 23 into the starting position I, the cut weft thread end is drawn into the injector 23 and does not protrude below.
- a tube 70 which can optionally also be designed as a flexible hose and is preferably transparent, is placed on the injector 23, which laterally guides the weft thread 24 or 24a on the way between the thread delivery drum 57 and the respective injector 23, so that the weft cannot accidentally emerge from the injector.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81102934T ATE10519T1 (de) | 1980-04-26 | 1981-04-16 | Verfahren und vorrichtung zum pneumatischen eintragen des schussfadens in die schussfadentraeger einer mehrsystemigen webmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3016182 | 1980-04-26 | ||
DE3016182A DE3016182C2 (de) | 1980-04-26 | 1980-04-26 | Verfahren und Vorrichtung zum pneumatischen Eintragen des Schußfadens in die Schußfadenträger einer mehrsystemigen Webmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0039009A1 EP0039009A1 (de) | 1981-11-04 |
EP0039009B1 true EP0039009B1 (de) | 1984-11-28 |
Family
ID=6101052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81102934A Expired EP0039009B1 (de) | 1980-04-26 | 1981-04-16 | Verfahren und Vorrichtung zum pneumatischen Eintragen des Schussfadens in die Schussfadenträger einer mehrsystemigen Webmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US4410017A (ru) |
EP (1) | EP0039009B1 (ru) |
JP (1) | JPH026855B2 (ru) |
AT (1) | ATE10519T1 (ru) |
BR (1) | BR8108574A (ru) |
DE (1) | DE3016182C2 (ru) |
SU (1) | SU1109056A3 (ru) |
WO (1) | WO1981003037A1 (ru) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3715742C1 (de) * | 1987-05-12 | 1988-06-01 | Dornier Gmbh Lindauer | Verfahren und Vorrichtung zum Speichern eines Schussfadenstueckes in einem Schussfadenmagazin eines Schussfadentraegers |
DE3718306C1 (de) * | 1987-05-30 | 1988-07-07 | Dornier Gmbh Lindauer | Mehrsystemige Webmaschine mit permanentmagnetischem Schussfadentraegerantrieb |
DE3718307C1 (de) * | 1987-05-30 | 1988-07-21 | Dornier Gmbh Lindauer | Mehrsystemige Webmaschine |
DE3721309C1 (de) * | 1987-06-27 | 1988-07-21 | Dornier Gmbh Lindauer | Vorrichtung zur wahlweisen Lieferung abgemessener Laengen wenigstens zweier verschiedener Schussfaeden fuer die Schussfadentraeger einer mehrsystemigen Webmaschine |
US4850399A (en) * | 1987-06-27 | 1989-07-25 | Lindauer Dorner Gesellschaft M.B.H. | Weaving loom with pneumatic weft thread injection |
DE3721310C1 (de) * | 1987-06-27 | 1988-09-29 | Dornier Gmbh Lindauer | Vorrichtung zur periodischen Lieferung abgemessener Schussfadenlaengen fuer eine mehrsystemige Webmaschine |
DE3733292C1 (de) * | 1987-10-02 | 1989-01-19 | Dornier Gmbh Lindauer | Webverfahren und Webmaschine zum Herstellen von Frottiergewebe |
FR3002550B1 (fr) * | 2013-02-22 | 2015-07-17 | Aircelle Sa | Metier a tisser a cadres cote-a-cote, procede de tissage utilisant un tel metier et preformes ainsi tissees. |
BE1024414B1 (nl) * | 2016-07-04 | 2018-02-12 | Picanol Nv | Opstelling en werkwijze voor het optimaliseren van een weefproces. |
FR3060614A1 (fr) * | 2016-12-20 | 2018-06-22 | Compagnie Generale Des Etablissements Michelin | Machine a tisser et procede de tissage correspondant |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH414489A (de) * | 1963-03-19 | 1966-05-31 | Oerlikon Buehrle Holding Ag | Verfahren zum Beschicken der Schützen von Webmaschinen mit Faden, und Einrichtung zur Durchführung des Verfahrens |
DE1288025B (ru) * | 1964-12-07 | |||
DE1785416A1 (de) * | 1968-09-20 | 1972-05-04 | Adolf Linka | Verfahren und Vorrichtung zur periodischen Lieferung abgemessener Schussfadenlaengen von einer Spule in einen den Schussfaden in einen kontinuierlich bewegten Schuetzen eintragenden pneumatischen Injektor |
DE1963208C3 (de) * | 1969-12-17 | 1974-07-04 | Adolf 7451 Hechingensickingen Linka | Wellenwebmaschine |
US3943976A (en) * | 1971-10-06 | 1976-03-16 | Maquinaria Textil Del Norte De Espana S.A.-Matesa | Continuous insertion weaving machine |
CH595489A5 (ru) * | 1976-08-20 | 1978-02-15 | Rueti Ag Maschf | |
DE2800639A1 (de) * | 1978-01-07 | 1979-08-02 | Sipra Patent Beteiligung | Wellenfach-webmaschine |
FR2429276A3 (fr) * | 1978-06-22 | 1980-01-18 | Tsnii Chlopchatobumasch Promy | Dispositif de canetage des organes d'insertion de fil de trame d'un metier a tisser a foule ondulante |
US4253498A (en) * | 1979-03-20 | 1981-03-03 | Vinicio Luchi | Travelling wave shedding looms relative to the shuttle loading system |
-
1980
- 1980-04-26 DE DE3016182A patent/DE3016182C2/de not_active Expired
-
1981
- 1981-04-16 AT AT81102934T patent/ATE10519T1/de not_active IP Right Cessation
- 1981-04-16 EP EP81102934A patent/EP0039009B1/de not_active Expired
- 1981-04-18 WO PCT/DE1981/000064 patent/WO1981003037A1/de unknown
- 1981-04-18 JP JP56501530A patent/JPH026855B2/ja not_active Expired - Lifetime
- 1981-04-18 US US06/333,859 patent/US4410017A/en not_active Expired - Fee Related
- 1981-04-18 BR BR8108574A patent/BR8108574A/pt unknown
- 1981-12-17 SU SU813365845A patent/SU1109056A3/ru active
Also Published As
Publication number | Publication date |
---|---|
EP0039009A1 (de) | 1981-11-04 |
JPH026855B2 (ru) | 1990-02-14 |
BR8108574A (pt) | 1982-04-06 |
JPS57500516A (ru) | 1982-03-25 |
DE3016182C2 (de) | 1983-01-05 |
DE3016182A1 (de) | 1981-11-05 |
SU1109056A3 (ru) | 1984-08-15 |
US4410017A (en) | 1983-10-18 |
WO1981003037A1 (en) | 1981-10-29 |
ATE10519T1 (de) | 1984-12-15 |
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