Monitor And Control Patents (Class 57/264)
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Patent number: 5369945Abstract: A method and apparatus for controlling a false twist texturing machine, which extends the previously known process for controlling operation during the normal operation of the machine, to exceptional operating conditions, such as during yarn thread-up and/or restarting after a temporary stoppage of operation by reason of a power failure. In accordance with the invention, the known method which includes control of the frictional force imparted to the yarn as a function of the yarn tension, is modified in such a manner that during periods other than normal operation, the control of the frictional force as a function of the yarn tension is terminated, and a predetermined frictional force is imparted to the yarn.Type: GrantFiled: February 9, 1993Date of Patent: December 6, 1994Assignee: Barmag AGInventors: Bernd Wessolowski, Bernd Neumann, Hellmut Lorenz
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Patent number: 5347449Abstract: A method and system is provided for eliminating malfunctions in textile machines, in particular spinning machines. Malfunction signals are transmitted from the machine to a process control computer that controls the elimination of the malfunctions. The process control computer activates an alarm call transmitter that calls a desired specialist for removing the malfunction in a certain machine.Type: GrantFiled: December 18, 1991Date of Patent: September 13, 1994Assignee: Maschinenfabrik Rieter AGInventors: Urs Meyer, Roland Beringer
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Patent number: 5341633Abstract: In a roving winding apparatus applied to a roving frame provided with a plurality of draft parts and corresponding bobbin wheels, a bobbin shaft for driving the bobbin wheel, a bobbin rail on which the bobbin shaft is rotatably horizontally mounted along the longitudinal direction thereof, a lifting motion mechanism for lifting the bobbin rail, and a main motor for driving the draft parts at a predetermined rotational speed, wherein the bobbin shaft is driven under a controlled condition created by a servomotor to follow a digital signal output from the rotation angle detecting device applied to the common bottom front roller of the draft parts, in an adjusted optimal condition under the control of a computer system, incorporated with the lifting motion of the bobbin rail.Type: GrantFiled: December 1, 1992Date of Patent: August 30, 1994Assignee: Howa Machinery, Ltd.Inventors: Hirotaka Nishikawa, Yoshio Kurachi, Takashi Kogiso, Shigeki Sekiya, Teruhiko Sato, Hideki Hashimoto, Makoto Ohmori, Kenji Sasaki
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Patent number: 5337551Abstract: A tube transport assembly is provided for a textile machine system in which tubes having yarn or the like wound thereon are transported to, and empty tubes are transported from, a textile machine. Two different transport apparatus are each operable to transport a different kind of tube support member along a respective endless transport path. In one aspect of the present invention, an alternating positioning device alternately positions the two types of tube support members and a tube transfer device is operable to transfer the tubes and full yarn packages from the type of tube support members on which they are initially supported to the other type of tube support members. In one embodiment of the tube transport assembly, the alternating positioning device is a rotatable annular disk having a plurality of tube support member retaining positions uniformly spaced annularly thereon.Type: GrantFiled: November 4, 1991Date of Patent: August 16, 1994Assignee: W. Schlafhorst AG & Co.Inventors: Hans Grecksch, Thomas Heidtmann, Norbert Bohnen
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Patent number: 5337550Abstract: A method of stopping a spool which is driven by a continuously rotating spool roller on an open-end spinning machine. The spool is lifted off the spool roller and a braking roller is placed on the peripheral surface of the spool, after which the braking roller is braked to a stop. In this case, the roller is driven substantially at the peripheral speed of the spool roller before being placed on the spool. In order to perform the method, the braking roller has associated with it a braking device which is connected for control purposes to a spool-changing device. The braking device is constructed as a direct-current machine with a resetter.Type: GrantFiled: September 18, 1992Date of Patent: August 16, 1994Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Walter Mayer, Sebastian Brandl, Josef Neumeyer
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Patent number: 5333441Abstract: A method and apparatus for sequentially applying suction and auxiliary yarn to a yarn package of a textile spinning machine. The apparatus is operable to position yarn extending from a tube during a restarting operation in which the winding the yarn is restarted after the occurrence of a break in yarn being fed from a drafting device onto a tube. The apparatus includes a support assembly which supports a suction applying device as well as an auxiliary yarn length delivery device for simultaneous lateral movement of the two devices toward a tube from which a trailing end of wound yarn is to be drawn. The apparatus also includes a control device for controlling the suction applying device to initially apply suction to the tube for predetermined length of time to thereby draw in a trailing end of wound yarn and, if a trailing end of wound yarn is not drawn in, to control the auxiliary yarn length delivery device to deliver a length of auxiliary yarn onto the tube.Type: GrantFiled: June 12, 1992Date of Patent: August 2, 1994Assignee: Zinser Textilmaschinen GmbHInventor: Ewald Naegele
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Patent number: 5331796Abstract: Fiber optic filaments or ribbons are deflected by a system of sheaves to converge at final filament deflection sheaves which direct the filaments along the longitudinal direction of an assembly table. Successive sets of filament deflection sheaves stack the filaments into bundles which are separated by spacer elements which are likewise guided to the assembly table. Sensors at the final sheaves monitor the tensions in both the filaments and separators and a controller is used to adjust the tensions to compensate for frictional variations upstream of the final sheaves. The table is positioned at an angle to the machine axis so that the stacked filament bundles and separators can be wound about a rotating core by being drawn along the table by the rotating core for staggered and tangential application of the filaments about the core at the downstream end of the table.Type: GrantFiled: September 16, 1992Date of Patent: July 26, 1994Assignee: Ceeco Machinery Manufacturing LimitedInventor: Andre Varga
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Patent number: 5327712Abstract: In a textile spinning apparatus a yarn joining device (12) begins to work to join the end of a newly spun yarn with a retrieved yarn end after the breakage of a yarn (2). During the joining process draw-off rollers (3) continue, to supply the yarn (2) such that yarn storage members (4, 11) have to be implemented during the joining process. In order to draw the yarn (2) into the interior of the yarn storage members (4, 11), air suction is applied in a known manner. After the yarn (2) joining process is completed in the yarn joining device (12), the yarn storage members (4, 11) are successively emptied by use of an acceleration in yarn draw off speed effected by a yarn storage draw-off roller (7) and an auxiliary friction roller (14).Type: GrantFiled: July 21, 1992Date of Patent: July 12, 1994Assignee: Maschinenfabrik Rieter AGInventors: Harold Dallmann, Martin Werder, Ernst Ott
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Patent number: 5325659Abstract: A cabling machine for laying optofibers, cables or the like in an oscillating, wavy path around a smooth pull-reliever, or into grooves having an oscillating, wavy shape which are extruded around a pull-reliever, i.e., so-called S/Z-cabling. The machine includes a pull-reliever pulling-off device, a braking capstan, a fiber reeling-off device, and an S/Z-bench (6) for laying the fibers around the pull-reliever. When used with a grooved pull-reliever (2), a laying-on tube (11) of the S/Z bench (6) is connected to a transmission (14), and a sensor (17) is connected to the transmission and functions to detect rotation of the laying-on tube (11) caused by the oscillating waveshape of the grooves. The reeling-off device (1) and the braking capstan (3) are controlled to cause the pull-reliever (2) to rotate to perform a corrective function.Type: GrantFiled: August 13, 1993Date of Patent: July 5, 1994Assignee: Telefonaktiebolaget L M EricssonInventor: Bengt A. Nortenius
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Patent number: 5293738Abstract: An apparatus for delivering a skein end of a thread wound on a reel to an apparatus for returning the skein end to a spinning machine. The apparatus for delivering the skein end comprises a device for unwinding a reel on which the thread is wound, a capturing device for capturing the skein end of the thread, a transferring device to transfer the thread from the capturing device to a device that returns the thread to the spinning machine, and a detecting device for detecting the presence of the thread in the transferring device. Another aspect of the invention generally features an apparatus for rejoining the skein end of a thread wound on a reel, the thread having been disconnected from the reel due to one of a plurality of different events. The apparatus comprises an unwinding device for unwinding the reel; a capturing device for capturing the skein end of the thread wound on the reel, a cutting device for cutting a portion of the thread captured by the capturing device.Type: GrantFiled: October 19, 1992Date of Patent: March 15, 1994Assignee: Savio S.p.A.Inventors: Francesco Ferro, Claudio Peruch, Donato Castellarin
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Patent number: 5289983Abstract: In a spinning mill in which a bobbin from a spinning frame is mounted on a bobbin tray and sent to a winder, a package doffed from the winder is loaded on a hanger and then the package is mounted on a package tray, recording media is provided on the bobbin tray, on the hanger and the package tray, respectively. Frame numbers and spindle numbers which are production origin information of bobbins are written on the recording medium so that the production origin information can be controlled and the records can be grasped.Type: GrantFiled: July 22, 1992Date of Patent: March 1, 1994Assignee: Murata Kikai Kabushiki KaishaInventors: Yutaka Ueda, Keizo Ohori, Tetsuji Masai
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Patent number: 5287692Abstract: In a transport medium for yarn or the like which comprises a medium for transporting directly or indirectly a yarn or the like, such as a tray for fitting upright a bobbin thereon, and media capable of writing therein and reading therefrom of various information on the yarn, the media attached to the transporting medium.Type: GrantFiled: July 20, 1990Date of Patent: February 22, 1994Assignee: Murata Kikai Kabushiki KaishaInventor: Junichi Matsubayashi
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Patent number: 5279104Abstract: A process for the piecing of a yarn end on a open-end spinning machine. The yarn is backfed a first time from a cross-wound package, the backfeeding is interrupted and the yarn is clamped at a predetermined distance from the package and the free end is cut. The backfeeding is then resumed for a predetermined period of time and the yarn is temporarily stored between the clamping point and the package. The stored yarn is then wound onto the package in a plurality of parallel windings upon a predetermined generating line. The yarn clamp is released to backfeed the yarn remaining in the temporary storage device and to stretch or tension the yarn between the package and the backfeeding means. The yarn is reclamped and the excess yarn is cut to a predetermined length. The yarn is backfed to the spinning rotor of the open-end spinning machine to combine with fibers in the rotor to piece up the yarn, which is then drawn off the rotor and wound onto the package.Type: GrantFiled: May 12, 1992Date of Patent: January 18, 1994Assignee: Schubert & Salzer Maschinenfabrik AGInventors: Walter Mayer, Johann Halbritter
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Patent number: 5272864Abstract: A yarn exchange and doffing device in a two-for-one twister without lowering of efficiency is proposed. A yarn breakage spindle passing mechanism is provided on the device body which travels along spindles of a two-for-one twister and the mechanism stores a yarn breakage spindle judged to be unnecessary for stoppage.Type: GrantFiled: July 29, 1992Date of Patent: December 28, 1993Assignee: Murata Kikai Kabushiki KaishaInventor: Tadashi Suzuki
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Patent number: 5269478Abstract: A bobbin trace system in which a bar code for distinguishing a bobbin is affixed on a tray on which the bobbin to be fed from the spindle on the fine spinning frame to the winder is inserted upright, the bar code is read by a bar code reader and at the same time the yarn characteristic of the bobbin of the code is detected, the yarn characteristic thus detected is transferred to the controller which controls the operation of the winder, and the controller reads the code of the tray to be fed to the winder and feeds the bobbin characteristic corresponding to this code back to the winder, thereby controlling the operation of the winder on the basis of the bobbin characteristic thus fed back.Type: GrantFiled: May 18, 1992Date of Patent: December 14, 1993Assignee: Murata Kikai Kabushiki KaishaInventors: Masahiro Wakabayashi, Yuji Todo, Tomonari Ikemoto
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Patent number: 5263309Abstract: A method of and an apparatus for balancing a multi-bay cabler system when less than all of the cabler frame bays are supplied with a supply bobbin are disclosed. The apparatus comprises a mechanical counterweight system which compensates for a depleting strand supply during operation of the cabler system, thereby equalizing centrifugal loading within the rotating strander frame and maintaining its dynamic balance at full design speed during the cable assembly operation. The counterweight system is installed in a bobbin-carrying cradle of an unused cabler frame bay. According to a first embodiment, the counterweight is driven in a linear path relative to the cradle in a direction normal to the rotational axis of the cabler frame. According to a second embodiment, the counterweight is driven in an arc relative to its supporting cradle.Type: GrantFiled: May 11, 1992Date of Patent: November 23, 1993Assignee: Southwire CompanyInventors: Steven R. Campbell, Andrew Blackmore
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Patent number: 5259179Abstract: When a full bobbin signal from a counter CCM counting the number of rotations of the front roller (3) is output, the control element (28) outputs a signal directed to the control motor (M2) of a unit (29) for reciprocating a bobbin rail (10). As a result, the rotation of the control motor (M2) is combined with the rotation of a differential gear (14 ) connected to the main motor (M1), so that a reciprocating movement of the bobbin rail (10) after the full bobbin state is obtained which is faster than that obtained during a usual taking up operation of the roving, which causes the roving to be wound on the bobbin in a much coarser state than usual. A limit switch (LSP) detects a predetermined desired position of the bobbin rail (10), and the control element (28) outputs a signal directed to the unit (29), whereby the main motor (M1) and the control motor (M2) are stopped.Type: GrantFiled: March 3, 1992Date of Patent: November 9, 1993Assignee: Howa Machinery, Ltd.Inventors: Shigeki Sekiya, Takashi Kogiso, Yoshio Kurachi
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Patent number: 5259180Abstract: A cabling machine is disclosed for laying optofibers, cables or the like in an oscillating, wavy path around a smooth pull-reliever, or into grooves having an oscillating, wavy shape which are extruded around a pull-reliever, i.e., so-called S/Z-cabling. The machine includes an S/Z-bench (6) which includes an aligning mechanism (13) which grips and guides the pull-reliever (2), and a motor (15) which imparts an oscillating, rotational movement to the aligning mechanism via a transmission (14). When used with a grooved pull-reliever (2), a laying-on tube (11) of the S/Z bench (6) is connected to the transmission (14) and a sensor (17) is connected to the transmission and functions to detect rotation of the laying-on tube (11) caused by the oscillating waveshape of the grooves. A reeling-off device (1) and a braking capstan (3) of the machine then cause the pull-reliever (2) to rotate to perform a corrective function.Type: GrantFiled: April 24, 1991Date of Patent: November 9, 1993Assignee: Telefonaktiebolaget L M EricssonInventor: Bengt A. Nortenius
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Patent number: 5258916Abstract: The present invention provides a method for selecting components of a rotor spinning device of a textile machine such that the operational characteristics of the components are optimally suited for the spinning of a yarn to be used in a predetermined fabric application. The method includes several prompting steps during which a user is prompted for information regarding the predetermined fabric application. In response to the information inputted by the user concerning the predetermined fabric application, the user is interrogated concerning the preferred characteristics of the predetermined fabric application. The method additionally includes prompting the user to provide information relating to the raw material of the yarn to be used in the predetermined fabric application and the yarn count of the yarn.Type: GrantFiled: April 16, 1990Date of Patent: November 2, 1993Assignee: W. Schlafhorst & Co.Inventors: Dieter Langheinrich, Karl Gosejacob
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Patent number: 5237805Abstract: A control apparatus for yarn twisting machines includes a control panel provided with electrical devices for setting the speed of the units for feeding, taking up and winding up of the yarn. The electrical devices are provided on one side of a control panel and are aligned with respective digital displays, and with relative symbols indicative of the arrangement of the various working units of the twisting machine. A main control device enables all of the working units to be set simultaneously, while leaving the relative speed ratios unchanged.Type: GrantFiled: July 24, 1991Date of Patent: August 24, 1993Inventor: Carlo Menegatto
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Patent number: 5237807Abstract: A spinning machine including a yarn treating carrier provided with a yarn piecing mechanism and a yarn package doffing mechanism therein, moving along a rail provided on a frame of a spinning machine so as at least to stop at predetermined spindle for carrying out a yarn piecing operation and a yarn package doffing operation, and a detecting unit for detecting a position of the yarn treating carrier at each spindle portion, the yarn treating carrier controlled so as to perform at least one of a moving operation, a decelerating operation, and a stopping operation in response to a yarn treatment signal and a detection signal of a position of the yarn treating carrier, each of which being output from each of the spindles.Type: GrantFiled: June 4, 1992Date of Patent: August 24, 1993Assignee: Toray Engineering Co., Ltd.Inventors: Takashi Iwade, Hiroyuki Matsumura, Hiroshi Arai
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Patent number: 5235800Abstract: A textile spinning apparatus comprising an automatic servicing tender and a textile spinning machine having a plurality of spinning stations, the tender being controllably movable into operational alignment with selected stations, the tender including a tender control mechanism for controlling a sequence of tender operations upon operational alignment of the tender with a selected spinning station, the textile spinning machine including a machine control mechanism having a mechanism for receiving an operational alignment signal from the tender and a mechanism for triggering the tender to commence the sequence of tender servicing operations in response to the alignment signal.Type: GrantFiled: January 17, 1992Date of Patent: August 17, 1993Assignee: Maschinenfabrik Rieter AGInventors: Walter Slavik, Giorgio Citterio
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Patent number: 5224331Abstract: A textile spinning or twisting machine which has plurality of units arranged next to one another in a row on one or both sides of the machine which each contain an electric motor. These electric motors are mounted on a supporting body extending in the longitudinal direction of the machine. The supporting body is constructed as a cable duct which, for each electric motor, comprises a motor plate bar and electric lines laid in the longitudinal direction of the machine.Type: GrantFiled: April 12, 1990Date of Patent: July 6, 1993Assignee: Novibra GmbHInventors: Gerd Stahlecker, Heinz Spath, Albert Straub
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Patent number: 5224047Abstract: A maintenance monitoring apparatus comprised of an information processing machine for making a maintenance working plan for an automatic winder in response to an input data, outputting it and at the same time displaying the state of progress and a portable operating unit for inputting in sequence to the information processing machine the content of work applied by the operator to the automatic winder in accordance with the aforesaid work plan.Type: GrantFiled: October 1, 1990Date of Patent: June 29, 1993Assignee: Murata Kikai Kabushiki KaishaInventors: Ikuo Kitagawa, Hidenao Miyaji
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Patent number: 5203155Abstract: A doffing apparatus for removing a row of yarn tubes from a row of upright spindles has a support and a row of grabs mounted on the support, each engageable with a respective tube of a respective spindle, and movable for lifting the tubes off the spindles. Respective sensors at the grabs detect the presence of tubes in the respective stations and generate individual outputs respectively corresponding to the absence of tubes in the respective stations. A controller connected to all the sensors receives the outputs therefrom and stops the apparatus on detection of no tube in any of the stations.Type: GrantFiled: November 25, 1991Date of Patent: April 20, 1993Assignee: Zinser Textilmaschinen GmbHInventors: Franz J. Wiese, Martin Maeser
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Patent number: 5199254Abstract: A device for sequentially loading tubes onto pegs on the doffing belt of a spinning machine having a tube orienting system which includes a duct for guiding the fall of the tubes, and a mobile dispenser comprising a plurality of compartments which receive the tubes from the duct load each from the duct and also load each tube onto the pegs of the doffing belt.Type: GrantFiled: June 20, 1991Date of Patent: April 6, 1993Assignee: Savio S.p.A.Inventors: Roberto Badiali, Amedeo Quaia, Luciano Bertoli
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Patent number: 5195313Abstract: Described is a method for quantifying interlacing characteristics of multifilamentary yarn, having nodes of a length and a width comprising, (a) measuring the length (L) of at least one node, (b) measuring the width (W) of at least each node measured in step (a) and (c) determining the value of the node harshness from the ratio of L to W for each node measured in step (a).Type: GrantFiled: January 10, 1992Date of Patent: March 23, 1993Assignee: BASF CorporationInventor: Andrew M. Coons, III
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Patent number: 5189872Abstract: The present invention provides an arrangement wherein a carriage is provided so that the carriage may travel along units of a two-for-one twister disposed, the carriage comprising a yarn exchanging mechanism for exchanging an empty yarn package supported on a spindle of each unit with a yarn package, a yarn end fining mechanism for drawing a yarn end from the yarn package, a threading mechanism for inserting the yarn end into an axial hole of the yarn package by an air flow, a doffing mechanism for removing a winding package for full bundles supported on a cradle arm of each unit and supplying a paper tube to the cradle arm, and a yarn engaging mechanism for engaging the yarn end of the yarn package with the paper tube when the cradle arm supports the paper tube.Type: GrantFiled: May 27, 1992Date of Patent: March 2, 1993Assignee: Murata Kikai Kabushiki KaishaInventors: Hiroshi Mima, Tadashi Suzuki, Yasuhiko Kubota
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Patent number: 5184453Abstract: An automatic doffing method for a double twister and a double twister movable along each unit of the double twister which is provided with a yarn supply package changing mechanism for replacing an empty feed package supported on a spindle of each unit with a feed package. A pick finding mechanism for drawing a yarn end from the feed package, a threading mechanism for inserting a yarn end into an axial hole of the feed package by way of an air flow, a doffing mechanism for removing a full winding package supported on the cradle arm of each unit and supplying a take-up tube to the cradle arm, and a yarn hanging mechanism for hanging a yarn end of the feed package on an empty take-up tube when the cradle arm supports the take-up tube.Type: GrantFiled: March 27, 1992Date of Patent: February 9, 1993Assignee: Murata Kikai Kabushiki KaishaInventors: Hiroshi Mima, Tadashi Suzuki
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Patent number: 5182900Abstract: A method for checking operation of a pneumatic splicer for joining two yarn ends at a textile machine includes feeding splicing gas for a predetermined period of time to a splicer to be checked for splicing a particular yarn batch without having yarn ends laid in place in a splicing conduit of a splicer head of the splicer to be checked. At least one status variable of outflowing splicing gas is measured during the predetermined period of time at a given opening in the splicer head. A reference value is measured at another splicer producing replicable spliced joints meeting a previously defined quality and being identical to the splicer being checked, by feeding splicing gas to the other splicer without yarn ends being laid in place in the splicing conduit and measuring the reference value at a given opening in the splicer head. The at least one status variable is compared with the measured reference value and deviations are ascertained.Type: GrantFiled: March 31, 1992Date of Patent: February 2, 1993Assignee: W. Schlafhorst AG & Co.Inventors: Dieter Horak, Hans-Heinz Schafer
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Patent number: 5181374Abstract: For the setting of yarn clearers for fineness control the number of permissible false alarms for a given yarn length, i.e. the permissible alarm frequency, is fixed. During the clearing process measured values of the fineness are recorded continuously, and their distribution is determined. From this distribution of the measured values and from the predetermined permissible alarm frequency, response limits are fixed independently on the basis of statistical regularities. Thus, the yarn clearers can be set automatically in an optimum manner on the basis of actual production circumstances, and mistakes between yarns differing only slightly in their fineness cannot occur.Type: GrantFiled: August 31, 1990Date of Patent: January 26, 1993Assignee: Zellweger Uster AGInventor: Kurt Aeppli
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Patent number: 5179829Abstract: In a combined textile yarn spinning and winding system having a yarn spinning machine and a yarn winding machine, a transport system is provided for conveying spinning tubes mounted on tube support members between the spinning and winding machines. Separate respective sets of tube support members are provided in association with the spinning and winding machines and separate closed transport conveyor loops are provided in association with the machines for conveying their respective sets of tube support members. Tube transfer mechanisms are provided between the two transfer loops for transferring yarn-wound cops from tube support members in the spinning machine loop onto empty tube support members in the winding machine loop and for transferring empty spinning tubes from tube support members in the winding machine loop onto empty tube support members in the spinning machine loop.Type: GrantFiled: January 15, 1992Date of Patent: January 19, 1993Assignee: W. Schlafhorst AG & Co.Inventors: Hans Grecksch, Frank Paetzold
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Patent number: 5175982Abstract: In a process and apparatus for spinning a package with a double yarn, which is used as a feed package for a subsequent twisting operation, it is provided that, when one or both fed slivers run out, an automatic splicing of new slivers is carried out.Type: GrantFiled: June 21, 1991Date of Patent: January 5, 1993Assignees: Fritz Stahlecker, Hans StahleckerInventor: Fritz Stahlecker
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Patent number: 5174102Abstract: A twist number setting device for a two-for-one twister constituted such that an output power shaft of a drive motor is connected to a drive pulley which is connected to a spindle and provides a turning force to the spindle and also connected to a rotary shaft of a drum which contacts with a winding package and provides a turning force to the package, and a speed change mechanism is interposed between the output power shaft of the drive motor and the rotary shaft of the drum.Type: GrantFiled: June 4, 1991Date of Patent: December 29, 1992Assignee: Murata Kikai Kabushiki KaishaInventors: Isamu Matsui, Yutaka Ueda
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Patent number: 5167114Abstract: An arrangement for producing spool packages serving as feeding packages for twisting, having a control apparatus for interrupting the operation. Sliver detectors arranged in front of drafting units are connected to the control apparatus. At least one yarn detector is connected which is arranged behind air nozzles. It is provided that the control apparatus is equipped with devices for generating a piecing signal, the piecing signal being generated after the yarn detector or detectors has/have responded or, if a sliver detector has responded, after the defect signal of the sliver detector is extinguished.Type: GrantFiled: January 26, 1990Date of Patent: December 1, 1992Assignee: Hans StahleckerInventor: Fritz Stahlecker
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Patent number: 5163279Abstract: In an arrangement for producing packages used as feeding packages for a subsequent twisting operation and containing two yarns wound up side-by-side, it is provided that the yarns are monitored with respect to a yarn breakage and, in the case of the occurrence of a yarn breakage, are cut and connected with one another at a common point before moving onto the package.Type: GrantFiled: October 22, 1991Date of Patent: November 17, 1992Assignee: Hans StahleckerInventor: Fritz Stahlecker
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Patent number: 5161361Abstract: A brushless DC motor-driven spindle assembly for a textile ring spinning frame wherein a shaft for rotatably supporting a bobbin for yarn collection is mounted for rotation about a central axis of rotation in a bolster section and, under certain conditions of operation, for rotation about axes which are incrementally angularly displaced from the central axis of rotation, and including rotor/stator position detecting elements comprising sensed elements mounted on the motor rotor for rotation therewith and sensing elements mounted in fixed position relative to the rotor and adjacent the path of movement of the sensed elements so as to maintain the same radial distance between the sensing elements and the sensed elements during incremental angular displacement of the axis of rotation of the shaft and motor rotor.Type: GrantFiled: August 30, 1991Date of Patent: November 10, 1992Assignee: Platt Saco Lowell CorporationInventors: Perry E. Talley, Michael P. DeKoning, Richard N. Ryer, II
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Patent number: 5161111Abstract: A method and an apparatus for operating a process line in a spinning mill comprising various regions, for example comprising at least the regions blow room, spinning preparation and spinning, with each region being put together from several textile machines which operate in series and/or in parallel and form a machine plane, and with the individual series connected textile machines producing different fiber structures, wherein raw fiber material which enters into the blow room is obtained as spun yarn at the output of the spinning mill, is characterized in that one measures at least one quality feature of the respectively produced fiber structure at at least some textile machines in each of the named regions and uses it to regulate the respective textile machine or an earlier textile machine of the same region; and in that correction values are formed from at least some of the quality features measured in the spinning preparation and spinning regions and are used to influence the operation of a textile machinType: GrantFiled: July 26, 1990Date of Patent: November 3, 1992Assignee: Maschinenfabrik Rieter AGInventors: Reinhard Oehler, Urs Meyer, Jurg Bischofberger
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Patent number: 5159804Abstract: A method for transferring a yarn after a yarn break to a normal yarn travel position at a textile machine winding station including making a yarn connection between a yarn supply point and a takeup bobbin and subsequently transferring the yarn to the normal yarn travel position at a transfer point at the reciprocating yarn guide with a tranfer motion of a yarn transfer device of a device that re-establishes yarn travel. The chronological course of the making of the yarn connection and the transverse motion of the yarn guide are monitored. The tranfer motion of the yarn transfer device and the transverse motion of the yarn guide are adapted to one another as a function of the chronological course for causing the yarn and the yarn guide to substantially simultaneously arriving at the transfer point. An apparatus for performing the method includes a first device for monitoring reciprocation of the yarn guide to a yarn tranfer point.Type: GrantFiled: September 10, 1990Date of Patent: November 3, 1992Assignee: W. Schlafhorst AG & Co.Inventors: Norbert Schippers, Hans Raasch, Heinz-Dieter Gobbels, Maximilian Preutenborbeck
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Patent number: 5146739Abstract: A yarn false twist texturing process and apparatus wherein the tension of the advancing yarn is monitored. The resulting signal is processed through a time filter to produce a time averaged signal, and the time averaged signal is compared with a set point signal to produce an adjusting signal which acts to control the false twisting unit so as to provide a substantially constant tension. The adjusting signal is also used to detect deficiencies of the false twisting process which disturb the uniformity of the texturing process.Type: GrantFiled: January 24, 1991Date of Patent: September 15, 1992Assignee: Barmag AGInventor: Hellmut Lorenz
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Patent number: 5144792Abstract: A cage-type stranding machine includes a rotatably mounted supporting pipe (6) and radially outwardly oriented longitudinal webs (7) attached to the supporting pipe and distributed uniformly around its circumference, resulting in greater stiffness which permits higher rpm. Spool carriers (9) are rotatably supported by supporting shields (12), which are attached to the longitudinal webs. The supporting shields and the rotation axes (13) of the spool carriers are arranged at an angle to the supporting pipe to reduce the rotation circle diameter, which again permits an increased rpm in operation so that the production output can be increased.Type: GrantFiled: March 5, 1990Date of Patent: September 8, 1992Assignee: Stolberger Maschinenfabrik GmbH & Co. KGInventors: Rudiger Lange, Helmut Classen
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Patent number: 5142856Abstract: A yarn piecing method for a yarn spinning machine including a yarn processing portion comprising a drafting unit, a yarn forming unit, and a yarn winding unit and a yarn piecing unit for piecing an end of a yarn spun from the yarn forming unit with an end of a yarn withdrawn from a yarn package, the method including the steps of guiding yarns to be pieced to each other to a yarn sensor before a yarn piecing operation is carried out, detecting whether any yarn defect exists on one or more of the yarns to be pieced, and determining to carry out the yarn piecing operation when no yarn defect is detected and not to carry it out when a yarn defect is detected.Type: GrantFiled: November 8, 1990Date of Patent: September 1, 1992Assignee: Toray Engineering Co., Ltd.Inventors: Takashi Nakayama, Takashi Iwade
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Patent number: 5140805Abstract: Device to check the sensor (of threads on spinning machines (11), which is fitted to a stationary ring rail (15) and cooperates with a traveller (18) set in rotation on a ring (16) by the thread (17), the device (10) at least governing an arresting and cutting means (21) and comprising a microphonic sensor(27) actuated by the shock waves due to the passage of the traveller (18).Type: GrantFiled: February 6, 1991Date of Patent: August 25, 1992Assignee: Zignago Tessile SpAInventor: Paolo Sterchele
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Patent number: 5125224Abstract: A transferring apparatus for a textile spinning machine for transferring empty tubes and full yarn packages between the spindles on which yarn packages are built and an endless belt for supplying the tubes and discharging full yarn packages. The transferring apparatus includes a tube gripping assembly, a device for vertically moving the tube gripping assembly, a device for laterally moving the tube gripping assembly, and a device for controlling the apparatus to position the tube gripping assembly in a predetermined position relative to the textile spinning machine. The controlling device measures the movement of an operating component, compares the measured value with a predetermined value, and stops the movement of the transferring apparatus in response to an indication that the measured value and the predetermined value are equal. The movement of the operating component corresponds to the vertical and/or lateral movement of the tube gripping assembly.Type: GrantFiled: February 21, 1991Date of Patent: June 30, 1992Assignee: Zinser Textilmaschinen GmbHInventor: Wolfgang Klaus
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Patent number: 5124928Abstract: The system contains measurement elements (MK) associated with the workstations, and means (PC) for evaluating the signals supplied by the measurement elements (MK), characteristic parameters being obtained during the evaluation for the individual workstations and analyzed for significant deviations from the corresponding desired values. The desired values are formed from the behavior of a statistically comparable collective. At the beginning of each monitoring operation generalized start values are used for the individual desired values, which are converted during the course of the monitoring into more accurate, absolute values. These are updated continuously and form the core data for an automatic inference process. Consequently, the method of functioning of the system, which can be employed in particular in winding rooms for monitoring automatic spoolers, is automatic and objective, and the evaluation of the measurement results becomes independent of the interpretation of the operating personnel.Type: GrantFiled: October 25, 1989Date of Patent: June 23, 1992Assignee: Zellweger Uster AGInventor: Peter F. Aemmer
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Patent number: 5117621Abstract: A spinning apparatus winds a strand onto a yarn package by relatively rotating a flyer and the yarn package about an upright axis so as to wind the strand in a succession of turns around the package by a flyer finger movable axially relative to the package. Each successive layer of turns is shorter than the preceding one so that the finished package has an axially upwardly tapered upper end. After substantially completely forming the package the rotation is generally stopped to leave the flyer in a position with the finger below the upper end of the last layer of turns formed on the package. Then the package and finger are relatively axially moved until the finger is generally at the upper end of the first layer of turns formed on the package. The flyer and package are then relatively rotated forward, that is in the same direction as when the package was being formed, through at least one half revolution about the axis so as to form a loop of the strand around the upper package end.Type: GrantFiled: September 18, 1990Date of Patent: June 2, 1992Assignee: Zinser Textilmaschinen GmbHInventors: Gustay Feichtinger, Hans-Peter Weeger
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Patent number: 5119308Abstract: A control system for a spinning machine wherein a nonsteady yarn irregularity is measured on the real time basis and results of the measurement is displayed in a concentrated manner or directly displayed on a package. A computing device for computing a standard deviation from a yarn irregularity signal is provided so that a uniformity of a yarn irregularity is evaluated in addition to a thickness and a length of the yarn irregularity.Type: GrantFiled: August 21, 1989Date of Patent: June 2, 1992Assignee: Murata Kikai Kabushiki KaishaInventor: Yoshihiko Samoto
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Patent number: 5115632Abstract: A method is described of operating a ring spinning machine in which the traversing motion of the ring rail is generated by means of a heart-shaped disc. For the execution of specific functions which depend on the angular position of the heart-shaped disc, the period of rotation of the heart-shaped disc is first determined. Thereafter, a predetermined angular starting position of this heart-shaped disc is detected and, on the basis of the predetermined period of rotation, the time is then computed in each case from the occurrence of the angular starting position up to the occurrence of at least one further predetermined angular position which is associated with a respective function. On the expiration of the time associated with a respective angular position, the related function is executed.Type: GrantFiled: March 28, 1990Date of Patent: May 26, 1992Assignee: Rieter Machine Works, Ltd.Inventor: Georg Ulmer
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Patent number: 5113708Abstract: An apparatus to cause a running length of yarn to vibrate at its harmonic frequency by through utilization of dual orifices through which pressurized air flows at an angle of intersection and to measure electronically the harmonic frequency thereof to provide a signal that can be employed to maintain and/or correct the parameters of the system to maintain a desired tension in the yarn being run.Type: GrantFiled: November 21, 1990Date of Patent: May 19, 1992Assignee: Milliken Research CorporationInventors: Jerry E. Bode, Ronnie E. Duckett
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Patent number: 5109658Abstract: A method and apparatus for removing binder from around a telecommunications cable core. The apparatus comprises a binder take-up reel, drive for rotating the take-up reel around a passline for cable core, and binder unwinding and guide mechanisms which are freely rotatable about a take-up reel station. The apparatus is economical in construction and requires only one drive motor, for the take-up reel, because rotation of the binder unwinding and guide mechanism is driven by binder tension as binder is unwound from the core. The binder unwinding and guide mechanism provides simple mechanical mechanism to control the speed of rotation of the binder unwinding and guide mechanism and the speed of rotation of the take-up reel relative to the cable core speed along the passline so that the binder is in tension as it is unwound controllably from the core.Type: GrantFiled: April 26, 1990Date of Patent: May 5, 1992Assignee: Northern Telecom LimitedInventor: John N. Garner