Rotating Chamber Type Patents (Class 57/404)
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Patent number: 5526638Abstract: To attach spinning rotors to their rotor shaft, the rotor shaft is provided with a stop against which the collar for the seating of the spinning rotor bears. The stop can be made in one piece with the rotor shaft, and be in the form of a micro-stop against which the collar bears in an axial direction.Type: GrantFiled: April 11, 1994Date of Patent: June 18, 1996Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Erich Bock, Edmund Schuller, Josef Schermer, Klaus Schoberth
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Patent number: 5522211Abstract: An open-end spinning machine having a spinning rotor attached to a shaft is provided wherein the shaft of the spinning rotor is driven by driving means. The shaft of the spinning rotor is held in the nips of pairs of rearward and forward supporting disks. During spinning operations, an axial force is generated in the axial direction of the free end of the rotor shaft. The open-end spinning device further comprises a radial support surrounding at least a portion of the circumference of the rotor shaft and disposed at least in part in the area between the free end of the shaft and the area of the shaft acted upon by the rearward pair of disks.Type: GrantFiled: January 31, 1995Date of Patent: June 4, 1996Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Manfred Knabel, Josef Breitenhuber, Edmund Schuller
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Patent number: 5450718Abstract: An open-end spinning machine having a spinning rotor attached to a shaft is provided wherein the shaft of the spinning rotor is driven by a driving device. The shaft of the spinning rotor is held in the nips of pairs of rearward and forward supporting disks. During spinning operations, an axial force is generated in the axial direction of the free end of the rotor shaft. The open-end spinning device further comprises a radial support surrounding at least a portion of the circumference of the rotor shaft and disposed at least in part in the area between the free end of the shaft and the area of the shaft acted upon by the rearward pair of disks.Type: GrantFiled: August 6, 1993Date of Patent: September 19, 1995Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Manfred Knabel, Josef Breitenhuber, Edmund Schuller
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Patent number: 5419952Abstract: Denim fabric is made from warp yarn which is at least 30% novelty cotton yarn having irregularly spaced effects (e.g. slubs) about one-half inch to two inches in length. The cotton novelty yarn is made by separating cotton sliver into cotton fibers, and acting on the cotton fibers with a negative wire combing roll, and then twisting the cotton fibers into the cotton novelty yarn. The negative wire combing roll has a tooth angle of about -0.01 to -15.degree. (e.g. about -2.degree.). The novelty cotton yarn is combined with at least 10% conventional novelty yarn or non-slub open end or ring spun yarn and made into a warp of about 54-100 ends per inch, and may be ring dyed (with indigo, vat, sulphur, pigment or reactive dye) so that the core of the yarn remains white. The warp is woven with a filling yarn to produce a denim fabric with a weight of about 5 oz. -17 oz. per sq. yd. having the weave and yarn size selected so that a tight construction is provided which highlights the slubs.Type: GrantFiled: May 26, 1993Date of Patent: May 30, 1995Assignee: Burlington Industries, Inc.Inventors: Michael W. Brown, Lee K. Powell, James C. Slagle, Jr., Ben M. Croker, Max H. Hance
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Patent number: 5406783Abstract: A rotor type open-end spinning frame spins a yarn from a fiber bundle formed from unraveled fibers at a fiber collecting section while applying a twist to the fiber bundle during normal spinning, and which pieces the fiber bundle to a standard thread supplied to the fiber collecting section during yarn piecing. The spinning frame has a rotatable outer rotor which has an inner wall with a fiber collecting section. A conduit member is fixed opposite the open-end of the outer rotor and induct the fiber bundle and the standard thread therethrough. An inner rotor is disposed coaxially to and rotatable in the outer rotor. The inner rotor rotates independently of the outer rotor during both normal spinning and yarn piecing. A passage in the inner rotor communicates with the conduit member and guides the fiber bundle from the fiber collecting section to the conduit member during yarn spinning.Type: GrantFiled: August 26, 1993Date of Patent: April 18, 1995Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Masahi Kaneko, Noriaki Miyamoto, Kenji Ito, Yasuyuki Kawai
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Patent number: 5396688Abstract: Denim fabric is made from novelty cotton yarn having irregularly spaced irregularities (e.g. slubs) about one-half inch to two inches in length. The cotton novelty yarn is made by separating cotton sliver into cotton fibers, and acting on the cotton fibers with a negative wire combing roll, and then twisting the cotton fibers into the cotton novelty yarn. The negative wire combing roll has a tooth angle of about -0.01.degree. to -15.degree.. The novelty cotton yarn is made into a warp of about 54-100 (e.g. 54-78) ends per inch, and is ring dyed so that the core of the yarn remains white. The warp is woven with a filling yarn to produce a denim fabric with a weight of about 5 oz.-17 oz. per sq. yd. having the weave and yarn size selected so that a tight construction is provided which highlights the slubs. The fabric is subjected to surface abrasion to remove the surface of dye on the slubs to show a lighter slub than body of the fabric.Type: GrantFiled: May 11, 1992Date of Patent: March 14, 1995Assignee: Burlington Industries, Inc.Inventors: Michael W. Brown, Lee K. Powell, James C. Slagle, Jr.
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Patent number: 5359846Abstract: Opened fibers are supplied into a rotor in high rotation, and a fiber bundle collected at a fiber-collecting section of the rotor is drawn as yarn from a yarn drawing passage provided on the open side of the rotor. A rotary assembly which is actively driven separately from the rotor is provided coaxially in the rotor. The rotary assembly has at least part thereof facing the vicinity of the fiber-collecting section and another part shaped to face a first end of the yarn drawing passage. The rotary assembly is provided with a yarn passage for guiding a fiber bundle to a position opposite the yarn drawing passage from the vicinity of the fiber-collecting section. A twist propagation preventing portion is provided in that end of the yarn passage that lies on the fiber-collecting section side. The rotation of the fiber bundle is suppressed by the twist propagation preventing portion, stopping the twisting.Type: GrantFiled: July 28, 1992Date of Patent: November 1, 1994Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Noriaki Miyamoto, Masashi Kaneko, Kenji Ito, Yasuyuki Kawai
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Patent number: 5164236Abstract: For an opening roller of an open-end spinning arrangement, a coating is provided for the mounting made of needles or teeth and the circumferential surface of the roller, which coating consists of a metal carbide coating and a thin nickel layer applied over it.Type: GrantFiled: March 1, 1991Date of Patent: November 17, 1992Assignee: Wilhelm Stahlecker GmbHInventor: Friedbert Schmid
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Patent number: 4932199Abstract: The instant invention relates to an open-end spinning device in which the spinning rotor is mounted on the drive shaft. The bearing and braking means are designed so that the spinning rotor can also be operated and braked securely at high rotational speeds. This is achieved by installing the braking means between the open end of the spinning rotor and the rotor shaft bearing system.Type: GrantFiled: July 28, 1989Date of Patent: June 12, 1990Assignee: Schubert & Salzer Maschinenfabrik AkitengesellschaftInventor: Eberhard Grimm
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Patent number: 4805395Abstract: An opening assembly for an open-end spinning arrangement is provided which includes a steel alloy fitting ring element arranged on a rotatable roller body element for opening a silver into individual fibers. The fitting ring element includes a base wall having a radial thickness no greater than 2.2 mm, and includes a plurality of radially extended teeth unitary with the fitting ring element extending from the base wall. The teeth have lateral flanks formed by at least one cirumferential groove on an outer surface of the fitting ring element, and have front and back edges formed by at least two axially extending longitudinal grooves. The front and back edges have a radial height of about 0.75-0.80 times a radial height of the lateral flanks. The base wall radial thickness has a dimension of about 0.60-0.72 times the radial height of the lateral flanks. The height of the teeth is greater than the distance between the lateral flanks of axially adjacent teeth. The teeth are inclined toward a rotational direction.Type: GrantFiled: May 9, 1988Date of Patent: February 21, 1989Assignees: Fritz Stahlecker, Hans StahleckerInventors: Fritz Stahlecker, Hans Stahlecker, Gerhard Fetzer, Eugen Bader
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Patent number: 4729214Abstract: A method of manufacturing a combined yarn which includes feeding staple fibers to the collection groove of an open-end spinning rotor, twisting the staple fibers into a staple fiber yarn, combining the staple fiber yarn with a continuous filament yarn which is also fed into the spinning rotor and then twisting the continuous filament yarn and the staple fiber yarn together to form a balanced ply yarn.Type: GrantFiled: January 20, 1987Date of Patent: March 8, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Paul W. Yngve, Peter Artzt, Gerhard Egbers, Ullrich Stark, Heinz Muller
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Patent number: 4713932Abstract: In the case of a supporting disk for a supporting disk bearing for a shaft of an open-end spinning rotor having a disk-shaped basic body made of metal that, on its circumference, is equipped with a ring made of plastic, the outer surface of which forms a smooth, uninterrupted essentially cylindrical running surface, it is provided that the inner surface of the ring has a profiling by means of which the thickness of the ring is reduced in the central area as compared to the edge areas.Type: GrantFiled: April 14, 1987Date of Patent: December 22, 1987Assignees: Fritz Stahlecker, Hans StahleckerInventor: Werner Zott
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Patent number: 4694642Abstract: The method of producing reinforced thread includes feeding loose fibres o the disc of a rotary twisting member, guiding the core thread through the disc eccentrically with respect to the axis of rotation of the twisting member and conducting the winding of the fibres about the core thread, to form the reinforced thread by rotating the twisting member. The apparatus for performing the method of producing reinforced thread comprises fibre-separating means communicating with a twisting member having a flat disc with an axial bore and an opening for the passage of the core thread, arranged eccentrically with respect to the axis of rotation of the twisting member, a holder for a bobbin with the core thread, a unit for winding the reinforced thread, and a guide for the core thread having its geometric center overlying the plane of the disc and aligned with the axis of rotation of the twisting member.Type: GrantFiled: December 12, 1986Date of Patent: September 22, 1987Assignee: Tashkentskoe Spetsialnoe Konstruktorskoe Bjuro Textilnykh MashinInventors: Gennady V. Zhigalov, Abdurakhim Abduganiev, Sergei Y. Kim, Robert R. Mosheev
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Patent number: 4660373Abstract: A method for starting an open-end rotor spinning machine, including rotors, a tangential belt guided along the spinning machine for driving the rotors and functional connections between the rotors and the tangential belt includes interrupting the functional connections between the rotors and the tangential belt, subsequently beginning to drive the tangential belt, subsequently acclerating the tangential belt to a speed conforming to that of a spinning operation, and successively re-establishing the functional connections between the rotors and the tangential belt, and a device for carrying out the method.Type: GrantFiled: June 27, 1985Date of Patent: April 28, 1987Assignee: W. Schlafhorst & Co.Inventor: Josef Derichs
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Patent number: 4660374Abstract: An open-end rotor spinning machine includes a multiplicity of spinning boxes disposed side by side on a machine frame at spinning stations; each of the spinning boxes including: a basic frame, a first shaft disposed on the basic frame, a spinning rotor having a rotor plate being disposed on the first shaft, a rotor housing surrounding the rotor plate, a second shaft disposed on the basic frame substantially perpendicular to the first shaft, a lid-like insert covering an opening formed in the rotor housing and being pivoted about the second shaft for opening the spinning box, a thread withdrawal channel disposed on the lid-like insert, a thread withdrawal nozzle disposed on the thread withdrawal channel in the vicinity of an opening in the rotor plate, the thread withdrawal nozzle being pivotal on the second shaft out of the vicinity of the opening in the rotor plate in a given direction, a third shaft disposed on the basic frame, a bearing pivotally disposed on the third shaft, a fiber feeding and opening devType: GrantFiled: August 1, 1986Date of Patent: April 28, 1987Assignee: W. Schlafhorst & Co.Inventor: Heinz-Georg Wassenhoven
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Patent number: 4625506Abstract: An "open-end" method of spinning using a device comprising a supply device, a disintegrating means, a rotor, an outlet end member, a supply device and a winding device, characterized in that means are provided for giving the "fibre deposition zone" (11) a speed equal to that of the "fibre formation zone" and in that the zones are actuated so that the fibres (10) coming from the disintegrator cannot be deposited on the thread (14) being formed.Type: GrantFiled: October 11, 1983Date of Patent: December 2, 1986Assignee: Societe Anonyme des Ateliers Houqet Duesberg BossonInventor: Michel Beckers
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Patent number: 4593522Abstract: An apparatus and method for producing a spun yarn having true twist comprising extracting staple fibers from a bundle of staple fibers; and collecting the extracted staple fibers on the periphery of a spinning rotor; and recontacting the extracted fibers with the bundle of staple fibers to form a combined untwisted yarn; and twisting the combined untwisted yarn to produce a twisted yarn; and withdrawing the twisted yarn from the spinning rotor.Type: GrantFiled: June 2, 1983Date of Patent: June 10, 1986Assignee: Toray Industries, Inc.Inventors: Yasuhiro Ishizuka, Takashi Nakayama, Seiichi Yamagata
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Patent number: 4567723Abstract: Method of spinning staple fibers by imparting false twist to a continuous fiber bundle. The continuous fiber bundle is formed by a successive doubling of separated fibers, and is thereupon twisted by means of a false twisting element, the separated fibers being distributed along the twisted length of the fiber bundle, as well as along the untwisted section of the continuous fiber bundle.Type: GrantFiled: April 6, 1984Date of Patent: February 4, 1986Assignee: ELITEX koncern textilniho strojirenstviInventor: Vaclav Safar
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Patent number: 4565064Abstract: This is a process and apparatus for the preparation of fasciated spun yarns, which includes feeding separate single fibers formed by opening and drafting a continuous staple fiber bundle into a rotor (20), collecting and holding the single fibers on a fiber-collecting portion of the rotor (20) and taking out the collected fibers through a center piece (26) by delivery rollers (33) while strongly false-twisting the collected fibers in the same direction as that of true twists given by the rotor (20) into a twisted yarn by a false-twisting apparatus arranged between the rotor (20) and the delivery rollers (33), wherein the separated single fibers are supplied to a travelling plane for the twisted yarn between the fiber-collecting portion of the rotor (20) and the center piece (26) to entangle some of the single fibers with the twisted yarn in the strongly false-twisted state, and the entangled single fibers are entwined around the periphery of the twisted yarn by subsequent release of the false twists of the twType: GrantFiled: August 17, 1984Date of Patent: January 21, 1986Assignee: Howa Kogyo Kabushiki KaishaInventors: Takeru Iwasaki, Kenji Sasaki, Hiroshi Enomoto
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Patent number: 4553384Abstract: A guard is provided for a take-up shaft of an open-end yarn spinning machine. The shaft rotates about a first axis and cooperates with a cot (a small rubber wheel) which is rotatable about a second axis parallel to the first axis. The guard comprises a tubular body member, preferably circular in cross-section, having a central axis and first and second ends spaced from each other along the central axis. A slot is formed in the body, and the body surrounds the shaft. The body is concentric with the shaft and the slot is disposed beneath the shaft. A cut-out is formed adjacent, but spaced from, the first end of the shaft, and the cot operatively engages the shaft through the cut-out. The slot and cut-out preferably interconnect. A mounting bracket is joined to the body member at the second end of the body member preferably comprises a Y-shaped bracket having a stem integral with the body member and branches with openings for receipt of fasteners.Type: GrantFiled: December 18, 1984Date of Patent: November 19, 1985Assignee: Burlington Industries, Inc.Inventors: Charles L. Crocker, Michael Wallace, Lee Powell
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Patent number: 4548030Abstract: An open end yarn spinning apparatus is disclosed which comprises a plurality of side by side spinning positions, with each spinning position including a circular spinning rotor, and aerodynamic bearings rotatably mounting the rotor. A maintenance carriage is adapted to move along one side of the apparatus, and the carriage mounts a cleaning device which may be introduced into the open side of the rotor upon disengagement of its drive means. To prevent the aerodynamic thrust bearing from being damaged during the cleaning operation by reason of the low speed rotation of the rotor, biasing means is provided for applying an axial force to the rotor to axially separate the thrust bearing and thereby avoid undue wear.Type: GrantFiled: April 13, 1984Date of Patent: October 22, 1985Assignees: Fritz Stahlecker, Hans StahleckerInventors: Dieter Lauschke, Wolfgang Feuchter
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Patent number: 4534042Abstract: Method of and apparatus for a continuous monitoring and analysis of spinning units operation in multiple unit open-end spinning machine. The invention permits the obtaining of reliable data about the operation of open-end spinning units in the machine, and of immediately processing them in the form of an analysis of the total performance of one or a plurality of machines. The active or inactive state of operation of the individual spinning unit is detected by a continuous monitoring of the spinning units at predetermined intervals consisting in emitting checking signals by a timing pulse generator of the monitor to those units. The signals thus obtained are used for analyzing the active state of the spinning units, the inactive state of the spinning units, the analysis of the active or inactive state of spinning units on each side of the machine, and an analysis of the production rate of the machine.Type: GrantFiled: August 6, 1982Date of Patent: August 6, 1985Assignee: Vyzkumny Ustav BavlnarskyInventors: Zdenek Marsicek, Jaroslav Janeba, Antonin Pacha, Ales Pastrnak, Jaroslav Dykast, Roman Prazak
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Patent number: 4527384Abstract: A single-step stable method of producing spun-twisted yarns. A twist point is located on the frictional surface of a take-off funnel of the spinning rotor. A strand material which forms a component of the final spun-twisted yarn product is exposed, between feed rollers and said twist point, to an appropriate combination of transport effects of a pneumatic field of force and a mechanical field of force. For this purpose, the tube, through which the strand material is supplied, is determined in dependence on the pneumatic conditions prevailing in the spinning rotor.Type: GrantFiled: October 25, 1983Date of Patent: July 9, 1985Assignee: Vyzkumny ustav bavinarskyInventors: Alois Stejskal, Zdenek Havranek, Miroslac Stepanek, Jan Hrdina, Frantisek Cada, Zelmira Borovcova, Jaroslav Slingr
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Patent number: 4519205Abstract: So as to be able to achieve, in yarn manufacture, the very high speed required by the textile industry in open-end spinning devices, for the purpose of increasing production, the rotors which are connected to the spinning container including a spinning groove, are designed as a hollow shaft, and this hollow shaft is guided radially on a bearing journal located in the interior of the hollow shaft by means of gas-dynamic radial plain bearings designed as inner bearings. Gas-dynamic axial plain bearings are provided for the axial guidance of the rotor rotating at very high speed. The rotor together with the spinning container can be pushed in and out in a simple way from the spinning side, and to position the rotor over the entire speed range, permanent magnets are located in the bearing journal opposite the rearside of the spinning container and in an annular widened portion of the bearing journal.Type: GrantFiled: December 15, 1982Date of Patent: May 28, 1985Assignee: BBC Brown, Boveri & Company, LimitedInventor: Hans-Rudolf Gubler
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Patent number: 4503663Abstract: An open-end spinning rotor located on a rotor shaft (20) having a collar (3). The open-end spinning rotor (1) is pressed against the collar (3) by means of a clamping disk (4). The collar (3) is designed as a second clamping disk (31) which is attached to the rotor shaft (20) in an opposite arrangement to that of the first clamping disk (4).Type: GrantFiled: April 1, 1983Date of Patent: March 12, 1985Assignee: Schubert & SalzerInventor: Rudolf Oexler
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Patent number: 4479348Abstract: A spinning apparatus for a fasciated yarn is provided which comprises a fiber-opening means provided with a combing roller, a fiber-collecting means including an inlet member and a rotor, a twist-imparting means consisting of an air nozzle, and a yarn take-up means. A sliver opened by the combing roller is fed to the interior of the rotor through the inlet member. Since the rotor and the inlet member rotate reversely to each other, the fibers are evenly distributed on an inner surface of the rotor. An intermediate yarn drawn out from the rotor is supplied to the air nozzle under an overfeeding condition, whereby a good fasciating effect is imparted to the resultant yarn by a vortex. Prior to feeding the yarn to the air nozzle, the yarn may be drafted between two pairs of rollers. The apparatus is easy to maintain because a roller drafting means having an apron which rapidly wears due to high-speed processing is not utilized.Type: GrantFiled: October 21, 1982Date of Patent: October 30, 1984Assignee: Kabushiki Kaisha Toyoda JidoshokkiInventors: Yoshiharu Yasui, Kazuo Seiki, Yoshihisa Suzuki, Hisao Amano
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Patent number: 4455819Abstract: A method and apparatus for spinning a modified fasciated yarn at a high production rate featuring a combination of open-end spinning and fasciated yarn spinning. A sliver is opened by a combing roller and deposited as a fiber layer on a fiber collecting surface of a drum rotor rotating at a high speed. Thereafter, the fiber layer is drawn off from the fiber collecting surface as a continuous fiber bundle by a central rotor rotating coaxially with the drum rotor at a faster speed. During the drawing-off operation, the fiber bundle is flattened to a ribbon form by making contact to a deflector and is subjected to a vortex within an air twisting nozzle mounted on the central rotor to form a resultant yarn. According to the present invention, high production rate can be obtained because a roller drafting system having aprons can be omitted.Type: GrantFiled: December 9, 1982Date of Patent: June 26, 1984Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Yoshihisa Suzuki, Kazuo Seiki
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Patent number: 4435954Abstract: In a fiber opening device in open-end spinning unit, having a combing roller which is encased by a casing and forming a fiber transferring passage between said combing roller and said casing, a wear-resistant member, preferably a member having a pin shape, is provided at an edge of an opening, e.g. a trash exit port opening formed in said casing and communicated with said passage. The structure of the fiber opening device according to the present invention makes possible easy installation of the wear-resistant member, and prevents harmful wear or bruising at said edge portion of the opening in the casing.Type: GrantFiled: December 22, 1981Date of Patent: March 13, 1984Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Kazuo Seiki, Kozo Motobayashi, Toshio Yoshizawa, Yoshiaki Yoshida, Keiji Onoue
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Patent number: 4435955Abstract: A method and apparatus for open-end spinning of novelty yarn produces novelty yarns in a simple manner. A sliver is fed to the fiber separating device of an open-end spinning apparatus to form distinct fibers, the fibers are air transported in a fiber flow path to the twisting device, controlled formation of effects (particularly slubs) is effected during air transport of the distinct fibers in their path, the formed effects are intermittently passed to the twisting device (e.g. pseudo-randomly), the fibers fed to the twisting device are twisted into a continuous strand of effect yarn (particularly slub yarn), and the continuous strand of effect yarn is taken up. The controlled formation of effects may be accomplished in a number of manners: introducing a needle making an angle of 25.degree.-45.degree.Type: GrantFiled: September 3, 1982Date of Patent: March 13, 1984Assignee: Burlington Industries, Inc.Inventor: John H. Sumner
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Patent number: 4385488Abstract: Open-end spinning device, including a rotor housing, a spinning rotor disposed in the rotor housing, a housing cover having a fiber feeding channel formed therein being in communication with the rotor, a thread delivery channel disposed in the cover, and a thread delivery orifice being at least partly disposed in the cover and being in communication with the thread delivery channel and rotor, the orifice having a hard and wear-resistant surface layer at thread deflection locations, the surface layer having areas of different wearability distributed therein.Type: GrantFiled: March 26, 1981Date of Patent: May 31, 1983Assignee: W. Schlafhorst & Co.Inventors: Hans Raasch, Jakob Lenzen, Klaus Pohl
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Patent number: 4361007Abstract: The invention relates to a method of and an apparatus for open-end spinning a novelty yarn (especially slub yarns), and the yarn so produced. A sliver is fed to the fiber separating device of an open-end spinning apparatus to form distinct fibers, the fibers are air transported in a fiber flow path to the twisting device, controlled formation of effects (particularly slubs) is effected during air transport of the distinct fibers in their path, the formed effects are intermittently passed to the twisting device (e.g. pseudo-randomly), the fibers fed to the twisting device are twisted into a continuous strand of effect yarn (particularly slub yarn), and the continuous strand of effect yarn is taken up. The controlled formation of effects is preferably accomplished by introducing a needle into the fiber flow path in the transport section, the fibers collecting on the needle. The fibers are passed to the twisting device by withdrawing the needle from the fiber flow.Type: GrantFiled: March 5, 1980Date of Patent: November 30, 1982Assignee: Burlington Industries, Inc.Inventor: John H. Sumner
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Patent number: 4351149Abstract: The machine has a framework (1) with a rotation drive, spinning stations, a yarn withdrawal unit (2) and yarn winding devices (3) disposed thereon. Each spinning station comprises a fibres feed unit (4) and a spinning chamber (5), having a housing (14) installed on the framework (1) so that it can be withdrawn from the fibres feed unit (4). The yarn withdrawal unit (2) comprises a driving shaft (22) mounted on the framework (1), and pressing rollers (23), which in operating position are resiliently pressed to the driving shaft (22) and can be withdrawn from said driving shaft. Each yarn winding device (3) is mounted at a respective spinning station and comprises a bobbin carrier (27) and a yarn spreader (28). According to the invention each pressing roller (23) is mounted on the housing (14) of the respective spinning chamber (5), and each yarn winding device (3) has operative connection (31) with the housing (14) of a respective spinning chamber (5) to disengage and engage the rotation drive.Type: GrantFiled: November 13, 1980Date of Patent: September 28, 1982Inventors: Abdurakhim Abduganiev, Timur P. Krjuk, Vitaly I. Zhestkov, Valentin N. Tikhonov, Vladimir G. Glazov, Mikhail M. Kletny, Gennady N. Shlykov, Vladimir K. Afanasiev, Vasily M. Dyachkov, Gennady V. Zhigalov, Rafael A. Mangutov, Ernst I. Angarov
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Patent number: 4322942Abstract: An open-end spinning method and an apparatus wherein a flow of discrete fibers is supplied to a fiber spreading element by which they are spread over the entire periphery of an inner fiber deposit surface of a drum where a fibrous layer is continuously created. Fibers are successively withdrawn from the fibrous layer by taking off the open end of yarn and rotating it about its axis, due to a twisting moment acting on the yarn, such twisting moment being created in a region beyond the drum axis. The yarn can be given an additional twist by causing its open end to revolve about the axis of the drum. The invention enables the attainment of a high degree of the so-called cyclic fiber doubling in the spinning process, a high productivity at a relative low peripheral velocity of the operating elements of the spinning device, and the possibility of manufacturing yarns of various parameters and characteristics in one and the same spinning unit.Type: GrantFiled: July 29, 1980Date of Patent: April 6, 1982Assignee: Vyzkumny ustav bavlnarskyInventors: Ludvik Fajt, Stanislav Didek, Jaromir Kasparek, Jaroslav Storek, Jiri Andres, Zelmira Borovcova, Marie Markova, Marketa Reymanova, Miroslav Stepanek