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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
W. Schlafhorst AG & Co. Patents
Assignee:
W. Schlafhorst AG & Co.
Address:
Moenchengladbach, DE
No. of patents:
224
Patents:


1 2 3 4 5










Patent Number Title Of Patent Date Issued
6957578 Yarn sensor October 25, 2005
A yarn sensor (25) for monitoring at least one parameter of a traveling yarn (17), e.g., in spinning and bobbin-winding machines, has a measuring gap (16) and a housing made of a non-conductive plastic material for containing electronic components. The housing surface is covered by a
6886322 Yarn withdrawal nozzle May 3, 2005
A yarn withdrawal nozzle for an open-end rotor spinning arrangement, having an inlet funnel and a coaxially arranged structure in the inlet funnel, as well as notches arranged in a spaced-apart manner that are positioned in the traveling direction of a yarn downstream of the coaxially ar
6886321 Conduit plate adapter for an open-end spinning device May 3, 2005
A conduit plate adapter for use with an open-end spinning device, comprising a base body having a central passage bore extending therethrough and a yarn withdrawal nozzle mouth fixedly secured directly in the central passage bore. The conduit plate adapter of the present invention is
6865876 Opening roller unit of an open-end spinning device March 15, 2005
A generally cylindrical opening roller unit of an open-end spinning device includes a unitary ring body having card clothing formed of at least one helical groove formed in the ring body, at least one helical ridge between courses of the groove, and saw teeth defined by transverse cuts o
6865874 Method and device for restarting the spinning of open-end spinning devices March 15, 2005
A method and device for restarting a spinning operation at work stations (2) of an open-end spinning machine (1) after replacement of a cheese (8) with an empty tube by a traveling service unit (16) comprising an auxiliary yarn supply device (21). Each work station comprises a yarn s
6702223 Winding head of a textile machine March 9, 2004
A winding head of a cheese-producing textile machine, having a device for the accurate determination of the length of yarn traveling through a measuring head (7), and having an evaluating device for accumulating the yarn lengths that have passed. The winding head has a device for det
6289663 Conduit plate adapter for an open-end rotor spinning machine September 18, 2001
A conduit plate adapter (10) for an open-end spinning device (1) which device comprises a vacuum-loadable rotor housing (2) which can be sealed by a cover element (5) and which device comprises a spinning rotor (3) rotating at high speed in the rotor housing (2). The replaceable conduit
6109014 Method and device for initiating the rewinding process after a yarn break during pot spinning August 29, 2000
A method and a device for initiating the rewinding process after a yarn break in single stage pot spinning. In the process, a yarn detaching device (14) is introduced into a spinning centrifuge (3) rotating a high rpm, and places a cutting edge (16, 48) against the conically wound po
6105355 Open-end spinning device for production Z- or S-twisted yarns August 22, 2000
An open-end spinning device (1) with a spinning rotor (3) whose rotor cup rotates at a high speed in a vacuum-loaded rotor housing (2) closable by a conduit plate (27). The spinning rotor (3) is supported with its rotor shaft (4) in the bearing nip of a support-disk bearing (5) free of a
6101805 Opening roller for an open-end spinning device August 15, 2000
An opening roller (1) for an open-end spinning device with a rotatably seated cylindrical roller body (7) is encircled by a sawtooth card clothing, (10, 10") molded in the form of a helical coil spring essentially entirely of a commercial ceramic material, e.g., aluminum oxide, zirco
6089494 Bobbin transport system for a bobbin winding machine July 18, 2000
In a bobbin winding machine with plural winding stations (13), a bobbin transport system for conveying bobbins to be unwound to and from the winding stations comprises a feed track (10), an oppositely located removal track (14) and plural transverse transport tracks (16) extending th
6082090 Method for producing spinning box frames for open-end spinning devices July 4, 2000
A method for producing a spinning box frame for an open-end spinning machine wherein lateral elements (2, 3) of a spinning box frame (1) are connected with interposed bracing elements (4, 5, 6) by means of a welding process which substantially prevents the occurrence of heat distortion
6067787 Open-end rotor spinning device May 30, 2000
An open-end spinning device (1) with a spinning rotor (17) which is mounted with its rotor shaft (8) in the V-slots of a support-disk bearing (5) and whose spinning cup (17) rotates at a high speed in a rotor housing (6) which is open to the front and can be loaded by suction. The rotor
6062015 Spinning rotor for an open-end spinning machine and method for coating the same May 16, 2000
A spinning rotor (1) with a spinning cup (2) has an interior surface coated with a nickel dispersion layer (6) of an essentially even layer thickness having a concentration of hard material grains (7) embedded therein which is clearly less at the surface of the fiber slide face (9) than
6047538 Fiber guide conduit for an open-end spinning device April 11, 2000
An open-end spinning device (1) with a spinning rotor (3) whose spinning cup rotates at a high speed in a rotor housing (2) loaded by a vacuum and closed by a yarn guide plate. A fiber guide conduit (14), arranged between a sliver opening device (26) and the spinning cup, has a wall sect
6039282 Method for monitoring the application of paraffin on a traveling yarn March 21, 2000
In order to improve the traveling and sliding properties of a yarn during its further processing, in particular for knitting, it is waxed during rewinding in cheese winding machines by passing it along a paraffin body. When the paraffin body is used up, the unwaxed yarn can cause yarn br
6035625 Yarn withdrawal nozzle March 14, 2000
A yarn withdrawal nozzle (20) for an open-end rotor spinning device (1) has a yarn inlet zone (29) tapering in a funnel-like manner into a yarn withdrawal conduit (21), with the yarn inlet zone being formed with both a spiral structure (30) as well as additional notches (34) in the inlet
6035623 Open-end spinning device with replaceable conduit plate adapter March 14, 2000
An open-end spinning device having a spinning rotor housed within a rotor housing which includes a yarn conduit plate for closing the front side of the rotor housing and a conduit plate adapter, defining a mouth area of a yarn conduit guide and including a yarn draw-off jet, which is rem
6035622 Method and apparatus for determining the changes in criteria of an automatic piecing operation March 14, 2000
In a method and apparatus for determining a variation in criteria, parameters and/or command values of an automatic piecing operation at an automatic piecing apparatus of an automatic spinner, a piecer and/or a length of thread in which the piecer is located is measured in accordance
6014592 Cheese-producing textile machine January 11, 2000
A cheese-producing textile machine 1 with a central control unit 37 and a plurality of winding stations 2 which are serviced by an autonomously operating service unit 23. The central control unit 37 of the textile machine 1 is connected via a machine bus 40 with individual winding st
6012671 Tube feeding device for cheese-producing textile machines January 11, 2000
A tube feeding device for cheese-producing textile machines (1), has a tube magazine (11) arranged on the end of the machine, interim tube reservoirs (9) which are part of the winding stations, and a conveying device (10) for distributing the empty tubes (8) to the interim tube reservoir
6009700 Method and device for operating an open-end spinning machine January 4, 2000
In an open-end spinning machine (1) with a plurality of open-end spinning devices (3), each having a spinning rotor (15) whose rotor shaft (26) is seated in the bearing wedge of an axial thrust-free support disk bearing (27) and is positioned by a magnetic bearing (29), and a service uni
6006510 Open-end spinning device December 28, 1999
An open-end spinning device 1 with a bearing arrangement for supporting a spinning rotor 3, which is seated so it can rotate at high turning frequency and is electrically insulated in relation to the housing of the spinning device and of the bearing. The static charge being created on th
6003295 Spinning box for an open-end spinning machine December 21, 1999
In order that stray fibers do not settle in the rotor during the spinning start process at the spinning box of a rotor spinning machine, an openable air valve is provided for initially cleaned the rotor by delivering an air current into the rotor either by drawing ambient air through the
6002230 Winding drum drive of a cheese-producing textile machine December 14, 1999
In the course of regulating an electronically commutated d.c. motor as the drive motor of a winding device of a textile machine, the resolution of known angular rotation sensing systems is insufficient to assure a jerk-free drive of the drum at low rpm. It is therefore proposed by the
5987871 Open-end spinning device with a spinning rotor November 23, 1999
An open-end spinning device has a spinning rotor (3) supported by its rotor shaft (4) in the bearing nip of a support-disk bearing (5) and positioned by a magnetic thrust bearing (18). The magnetic thrust bearing (18) comprises a stationary bearing component (41) with permanent-magnet ri
5987870 Open-end spinning device November 23, 1999
An open-end spinning device comprises a spinning rotor rotating in a vacuum-loaded rotor housing which can be closed by a conduit plate having a receptacle receiving a replaceable conduit-plate adapter and a locking device, e.g., a bar spring, for spring-biasing the conduit-plate adapter
5979155 Shaft arrangement for supporting and driving an open-end spinning rotor November 9, 1999
In open-end rotor spinning devices, an axial engagement element, typically a ceramic pin, is inserted as a wear protector in a receptacle at the free end of the rotor shaft which is supported on a ball of an axial bearing. In order to receive the air displaced during the insertion of the
5966920 Shaft for supporting and driving an open-end spinning rotor October 19, 1999
In open-end rotor spinning devices, an axial engagement element, typically a ceramic pin, is inserted as a wear protector in a receptacle at the free end of the rotor shaft which is supported on a ball of an axial bearing. In order to receive the air displaced during the insertion of the
5964084 Open-end spinning device October 12, 1999
An open-end spinning device (1) has a spinning rotor (2) supported by its rotor shaft (3) in the bearing wedges (4, 4') of a supporting plate bearing (5). A rotor brake (12) arranged in the area of the supporting plate bearing (4) has brake elements (13) operable vertically downwardly
5959383 Thrust bearing for an open-end spinning rotor September 28, 1999
A thrust bearing for an open-end spinning rotor (1) supported by its rotor shaft (2) in the bearing slot of a support-disk bearing arrangement (4). The thrust bearing has a magnetic bearing system (10) or (25) comprising magnetic support elements (12), (13) stationarily arranged on a thr
5953897 Fiber guide device for connecting a sliver opening device with a rotor spinning housing in an op September 21, 1999
An open-end spinning apparatus (1) has a spinning rotor (4) rotating in a vacuum-applied rotor housing (2) closed by a conduit plate (37) with a sliver opening device (51) delivering individualized spinning fibers into the rotor housing through a fiber guide conduit device (14) connectin
5950957 Bobbin winding unit of a textile machine for producing cross-wound bobbins September 14, 1999
A winding unit 2 of an automatic bobbin winder includes a suction nozzle 12 for aspirating from the surface 48 of a take-up bobbin 11 an upper yarn end portion 34 after a yarn break for subsequent placement into a splicing device 13. The suction nozzle 12 has a sensor device 35 for detec
5950414 Brake for an open-end spinning rotor September 14, 1999
A rotor brake (8) has a brake element holder (22) releasably fixed in place on a jaw-like brake lever (9, 10) and a dovetailed retaining slot (26) on its end. A brake element (30), which in cross section (A) has the shape of an equilateral triangle, is held in this dovetailed retaining s
5950411 Device for transmitting signals of a yarn monitor to a control circuit of a spinning location of September 14, 1999
A device for transmitting yarn monitor signals to the control circuit of an open-end spinning station for determining whether a yarn spun by the spinning station is being drawn off or whether the yarn travel has been interrupted so that, in case of a yarn break, the infeed of the sliver
5947405 Method for optimizing a batch change in an open-end spinning machine September 7, 1999
The method by which a batch is ended in a spinning machine has an effect on its efficiency. As the rule, the end of a batch is determined according to a preset time, the amount of yarn to be produced, or a preset number of bobbins. In order to end a batch with the greatest possible effic
5946899 Sliver opening device September 7, 1999
In an open-end spinning unit 1 having a pivotably mounted cover element 8 for covering a rotor housing 2 of the spinning unit 1, a sliver opening device is incorporated into the cover element 8. The sliver opening device has an opening cylinder housing 17 fixed to the cover element 8 wit
5941058 Sliver opening device August 24, 1999
A sliver opening device for an open-end spinning unit (1) with an opening cylinder (21) which rotates in an opening-cylinder housing (17) and comprises a base (29) arranged on a bearing shaft (26) with a replaceable annulus (30) of card-clothing fitted onto the base (29). The annulus (30
5937630 Open-end spinning device August 17, 1999
The invention relates to an open-end spinning device with a rotor housing connected to a source of suction and open at a front side, in which a rotor rotates at relatively high rpm. A cover element is provided for closing the rotor housing and a cover extension is affixed to the cover
5934060 Method for regulating the vacuum in a suction air installation of a textile machine August 10, 1999
For the optimization of the vacuum output of a suction air installation of a textile machine, the vacuum output is adjustably regulated by initially starting a batch with a predetermined vacuum for the vacuum demands under basic operating conditions and additional fluctuating working con
5924273 Textile yarn cop changing and transport system July 20, 1999
A cop changing and transport system for a composite ring spinning and winding machine wherein both the ring spinning machine and the winding machine have respective transport systems 2 and 3 in which circulate separate respective groups of transport pallets 25 and 26, dedicated to th
5918828 Cop preparation device for a bobbin-winding machine July 6, 1999
A suction arrangement for a device for repositioning the reserve winding typically found on cops from a ring spinning machine to prepare the cops for rewinding into larger yarn packages at a bobbin-winding machine. The suction device is connected to a central supply of suction air to asp
5916121 Sliver feeding device for an open-end spinning machine June 29, 1999
A sliver feeding device for an open-ended spinning machine (1) wherein sliver is fed to the front of a spinning rotor (44) revolving at high speed in a rotor housing (2), with a pivotable cover element (11) for closing the rotor housing (2) having an integrated sliver opening device
5916118 Device for preparing a piecing process in an open-end spinning machine June 29, 1999
So that stray fibers do not become attached to the rotor during a yam piecing process in the spinning box of a rotor spinning machine, the rotor may be cleaned by an air flow generated by drawing air into the rotor by the prevailing spinning vacuum or by blowing compressed air into the r
5906266 Transport apparatus for textile packages May 25, 1999
An apparatus for transporting textile packages in a transport direction along an elongate package supporting surface comprises a guide track extending beneath the elongate supporting surface, an elongated thrust element slidable on the guide track, and an elongated lift element super
5887417 Open-end spinning apparatus with a spinning rotor driven by a single motor March 30, 1999
An OE spinning apparatus 1 with a spinning rotor 2 having a hollow shaft 26 supported radially in a wedge-like gap 25 of a support-disk bearing 4 and driven by an individual motor 9 comprising an armature 11 integrated into hollow shaft 26 at its end and a stator 10 fixed to spinning-box
5884468 Centering device for tubes March 23, 1999
A device for centering tubes during their processing, for example in a tube cleaning station of a textile machine. In a textile machine provided with several batches of tubes of differing length, diameter and/or material, which cannot be processed together in known cleaning devices, the
5862660 Method for removing yarn defects at a winding head of a bobbin winding machine January 26, 1999
A method for removing both long and short yarn defects at the winding heads of a bobbin winding machine. Following the appearance of a yarn defect, the length of the defective yarn between the time of the appearance of the defect and the time of a subsequent yarn cut is determined. A suc
5857638 Method and device for preparing randomly cross-wound yarn packages January 12, 1999
A friction roller of a winding station of a winding machine is driven at a base angular velocity and is alternately accelerated and braked when the winding ratio is otherwise within a predetermined range of a selected whole number for causing slippage between the friction roller and a ya
5857637 Cheese-producing textile machine January 12, 1999
A cheese-producing textile machine 1 has a plurality of winding stations 2 and a service unit 23 for servicing the winding stations 2. The textile machine 1 has a central control unit 37 as well as separate winding station computers 39 for the individual winding stations 2. The service
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