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| Number | Title | Issue Date |
| 7204137 | Thread breakage detection systems and methods A thread breakage detection apparatus comprises a light source operable to generate a light beam, an emitter in communication with the light source, the emitter operable to emit the light beam, and a receiver in communication with and disposed in facing opposition t... | 04/17/2007 |
| 6336315 | Spinning machine having a plurality of spinning stations and method of making same The spinning stations of a spinning machine each have a drafting unit and a stopping device for fiber material fed to the drafting unit. A first carriage is movable along the length of the spinning machine, which carriage comprises a sensor for detecting ... | 01/08/2002 |
| 6298648 | Multiple twist spindle Multiple twist spindle to impart two+two twists to textile yarns and threads, whether they be continuous filaments or discontinuous fibres, the spindle comprising a spindle support (16) which supports a support (13) for the feed bobbin (12) maintained sub... | 10/09/2001 |
| 5966211 | Optoelectric sensor and weft yarn measurement and feeding equipment An optoelectronic sensor device (S) for detecting a yarn passing through a scanning zone (3) comprises at least one light source (L, L'), at least one photoelectric receiver (R1, R2) which is responsive to light variations and which is connected to an eva... | 10/12/1999 |
| 5673549 | Method and apparatus for producing randomly variegated multiple strand twisted yarn and yarn and fabric made by said method A method and apparatus for producing randomly variegated multiple strand wrapped yarn in twisting together two or more yarns at a plurality of yarn twisting stations. At each station a pneumatic twisting head is disposed in which randomly turbulent air cu... | 10/07/1997 |
| 5619849 | Method and apparatus for producing randomly variegated multiple strand yarn in twisting together at least two yarns and yarn and fabric made by said method A method and apparatus for producing randomly variegated multiple strand yarn in twisting together two or more yarns at a plurality of yarn twisting stations. At each station a pneumatic twisting head is disposed in which randomly turbulent air currents a... | 04/15/1997 |
| 5481860 | Spinning machine having a plurality of spinning stations with independently controllable delivery rollers In the case of a spinning machine comprising several spinning stations, which each contain one drafting unit, and comprising depositing sites for cans containing sliver, transport devices are provided for the transporting of the delivers from the cans to ... | 01/09/1996 |
| 5440870 | Method and apparatus of monitoring the quality of a false twist textured yarn A method and apparatus for monitoring the quality of the yarn processed on a false twist texturing machine is disclosed, and which includes sensing the tension of the advancing yarn at a location immediately downstream of the false twist unit, and determi... | 08/15/1995 |
| 5421529 | Process and device for cleaning sensors of a yarn monitoring system A process and device for the cleaning of the sensor surface of a yarn monitoring system used on spinning machines to monitor the yarn and/or the yarn quality. The yarn monitoring system is positioned without contact with the running yarn within the traver... | 06/06/1995 |
| 5385008 | Yarn break detecting device for spinning machine A yarn break detecting device for a spinning machine includes detectors, a feed section and a control section. The detectors each include a pair of electrodes having substantially the same area and adapted to electrically induce a potential depending on s... | 01/31/1995 |
| 5381651 | Arrangement for monitoring the lap formation on drafting units of a spinning machine For the monitoring of the lap formation in the case of delivery bottom rollers of drafting units, sensing elements are provided which, when a lap is formed, as a result of the enlarged diameter at the delivery bottom roller, are moved radially away from t... | 01/17/1995 |
| 5363639 | Spinning machine with spinning stations comprising one drafting unit respectively In the case of a spinning machine with several spinning stations, which each comprise a drafting unit, and with depositing sites for cans containing sliver, transport devices are provided for transporting the slivers from the cans to the drafting units. T... | 11/15/1994 |
| 5295287 | Method and installation for the on-line production of a ply of assemblies and the winding thereof on a beam A method and installation (1) for the on-line production of a ply (21) of semblies (20) of threads (30, 40) and the winding thereof on a beam (29). A plurality of rotary devices (2) permitting the production of the assemblies (20) is used to obtain the pl... | 03/22/1994 |
| 5140805 | Device to check the presence of threads on spinning machines 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 cu... | 08/25/1992 |
| 5086542 | Electronic stop motion for textile draw frame An apparatus for sensing a parting in any of the strands of sliver fed from a creel to the drafting rolls of a high speed textile draw frame to stop the drawing process in response to a sliver parting. A plurality of sliver guides are mounted on an elonga... | 02/11/1992 |
| 5055829 | Method and apparatus for monitoring yarn tension In monitoring the yarn tension at each of a plurality of yarn processing stations, the mean value of the monitored tension is continuously determined at each station, and the differential between the monitored value and the mean value is also continuously... | 10/08/1991 |
| 5043708 | Apparatus for detecting single-yarn breakage in a two-for-one twister As yarn travels toward a take-up device after having passed a ballooning area, the travelling course thereof is bent through contact with a pressure sensor. An alarm device generates an alarm when the contact pressure of the yarn, which is monitored by th... | 08/27/1991 |
| 5017911 | Method and apparatus for measuring the tension of an advancing yarn A method and apparatus measures the tension of an advancing yarn which is subject to interruptions of the yarn path, resulting for example from the severance of the yarn. During such interruptions, the zero setting of the tension sensor does not always re... | 05/21/1991 |
| 5017797 | Device for detecting yarn A device for detecting a doubled yarn includes a detecting device having photoelectric sensors disposed in a plane perpendicular to a running path of a yarn provided in a housing such that beams of light projected from light projecting elements may reach ... | 05/21/1991 |
| 4989402 | Method of, and device for, a secured control of spinning units of a spinning machine, especially of an open-end spinning machine The invention relates to textile machine control. The run of spinning units is controlled by two busses, a two-way bus, and a reserve one-way bus, the latter being activated, as a rule, by a central electronic system, and possibly, though less often, by t... | 02/05/1991 |
| 4976018 | Device for monitoring threads on a textile machine A monitoring needle (19) is rotatably mounted under spring tension in a housing (18). A light emitter/light receptor device is fixed to the housing (18) in the plane of the thread (5) and in the pivotal region of the monitoring needle (19), this device pr... | 12/11/1990 |
| 4965567 | Method of, and apparatus for, transmitting data in a manufacturing machine comprising a plurality of production stations The method and apparatus for transmitting data are used in a manufacturing machine, particularly a yarn manufacturing machine containing a plurality of production stations, a plurality of associated monitoring locations, a plurality of respective monitori... | 10/23/1990 |
| 4954720 | Metering apparatus and method for the measurement of a fixed length of continuous strand This invention relates to an improved apparatus and method capable of accurately measuring fixed lengths of moving strand or yarn as it is pulled from an essentially continuous source of supply and wound onto a take-up reel by an appropriately powered win... | 09/04/1990 |
| 4944145 | Spinning machine for producing feeding packages for twisting In a spinning machine having a plurality of spinning units for producing packages used as feeding packages for twisting which have two prestrengthend yarn components, a combined quality value of two yarn components is monitored and, in the case of a quali... | 07/31/1990 |
| 4922704 | Method and apparatus for introducing a roving into a textile machine drafting frame According to the method, an end part of a roving is first introduced into the main drafting zone of a drafting frame of a textile machine after a reference point at a clamping device. Thereafter, a middle part of the roving is drawn laterally into the pre... | 05/08/1990 |
| 4914785 | Device to feed fiber silvers A device used to feed fiber slivers to a processing machine with at least one sliver guide. The sliver guide is provided with a guiding surface over which the fiber sliver is guided. The guiding surface also serves as a sliver monitoring device. The slive... | 04/10/1990 |
| 4909027 | Multi-spindle textile machine monitoring process and apparatus Successive groups of thread paths in multi-spindle textile apparatus are equipped with individual monitoring systems. In each system, a joint monitoring element (S,E,L) is provided which has a bundle of rays (L). The latter is moved transversely to the th... | 03/20/1990 |
| 4890452 | Apparatus for controlling operation of spinning frame in roving bobbin exchange system An apparatus for controlling a drive of each one of spinning frames forming a group, to which a conventional roving bobbin exchange operation for exchanging almost exhausted roving bobbins of the spinning frame with full packaged roving bobbins of a bobbi... | 01/02/1990 |
| 4888944 | Process and apparatus for production and quality control in multi-spindle textile machines A common monitoring system with a light beam is provided for a group of two or more production units arranged in a row. The beam passes through the thread balloon formed by the moving thread of each of these production units and is intermittently interrup... | 12/26/1989 |
| 4888945 | Method for quality control of textured yarn A method for quality control of yarn for false twisters having a plurality of take-up motions, consisting of conducting quality measurement of yarn upon doffing by the take-up motions at a first point where the yarn is being twisted and at a second point ... | 12/26/1989 |
| 4878344 | Method and device for auotmatically splicing yarn on a ring spinning machine In a yarn splicing operation on a ring spinning machine wherein a broken end of yarn is drawn into a suction tube in position for splicing, the suction is reduced after the yarn is in position to avoid damage or destruction of the yarn as it is being held... | 11/07/1989 |
| 4845933 | Device for switching off and switching on again a spinning or twisting spindle, more especially a two-for-one spinning or twisting spindle A device for switching off and switching on the operation of a spindle of a textile twisting or spinning machine having a rumming thread is provided which includes the following elements. A pneumatic switching device is adapted to be operatively connected... | 07/11/1989 |
| 4814633 | Yarn storing device A yarn storing device (1) comprises a storage drum (2) and a sensor (5) arranged at the withdrawal end (3) of the storage drum (2). The sensor (5) has the form of an eyelet (6) for guiding the yarn (4) and generates a signal during the withdrawal of yarn ... | 03/21/1989 |
| 4788818 | Process and apparatus for reducing the breakdown quota or rate of stopping devices in a spinning or twisting machine The process and apparatus of our invention reduces the breakdown quota of stopping devices in a spinning or twisting machine which stop the roving, e.g. when a roving break occurs. A simulated signal for "Yarn Running" is conductable to a stopping device ... | 12/06/1988 |
| 4787199 | Yarn monitoring device for a doubling machine A yarn monitoring device comprises in association with each doubling spindle (1) a sensing arm (7) monitoring the upwardly directed yarn run between yarn guide eye (3) and feed roller (V), which arm is mounted by means of a mounting bush (9) for limited s... | 11/29/1988 |
| 4777791 | Method of shutting down a rotor spinning machine The invention provides for the spinning units of a multi-position rotor spinning machine to be driven by a common AC drive motor powered by a static inverter enabling the power supply frequency to the AC motor to be controlled for controlling the rate of ... | 10/18/1988 |
| 4777790 | Method and apparatus for stopping and subsequently restarting an open end spinning machine A method and apparatus for stopping and subsequently restarting an open end spinning machine wherein, upon an electrical power interruption exceeding a predetermined duration, the spinning rotor, sliver feed roller, yarn take-up roller, and yarn winding d... | 10/18/1988 |
| 4738094 | Roving stopping clamp, in particular for spinning machines A clamp is disclosed to be mounted on a yarn spinning machine and, if a roving of the yarn should break, serves to clamp the roving preventing it from further unravelling. The clamp comprises a housing body including a member for defining a passage guide ... | 04/19/1988 |
| 4727713 | Roving or sliver clamping device for a drafting frame or a spinning machine Roving or sliver clamping device at the drafting unit of a spinning machine, with a clamp segment which enters in the operative position between the upper inlet roller and the lower inlet roller of the drafting unit, and which clamp segment raises the upp... | 03/01/1988 |
| 4727715 | Method and apparatus for starting spinning operation of an open end friction spinning aggregate A piecing process is provided for an open-end friction spinning apparatus of the type including movable friction surface members forming a yarn-forming zone therebetween. A friction surface driving device for moving the friction surface members during ope... | 03/01/1988 |
