Patents Assigned to Fritz Stahlecker
  • Magnetic bearing system for a spinning machine rotor
    Patent number: 5197270
    Abstract: For a balloon limiting device, which can be carried along by a travelling yarn, a magnetic bearing system is provided which suspends the balloon limiting device in the axial direction by permanent magnets and implements an electronically controlled radial stabilization having segmental coils.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: March 30, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Gerd Stahlecker
  • Method and apparatus for driving an open-end spinning machine with a tangential belt during piecing
    Patent number: 5184452
    Abstract: In the case of a tangential-belt drive for an open-end spinning machine, having a tangential belt driving the spinning rotors of several spinning units arranged behind one another, it is provided that the spinning units each comprise a pressure roller loading the tangential belt and a rotor brake which can be jointly actuated by means of a common actuating mechanism. In addition, an actuating possibility is provided by means of which the pressure roller, for increasing the pressure force, can be increasingly pressed against the tangential belt during the run-up.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: February 9, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Dieter Gotz
  • Open-end spinning machine
    Patent number: 5182903
    Abstract: On an open-end spinning machine having a plurality of spinning units arranged in a row, a servicing apparatus is movably arranged on which cleaning elements are provided which can be applied to the environment of an opening roller and therefore clean it. A control device is assigned to the cleaning elements which controls a first cleaning operation when servicing apparatus is moving and a second cleaning operation when the servicing apparatus is stopped. Thus, a cleaning is possible which is adapted to the moving condition of the servicing apparatus.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: February 2, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Process and an arrangement for feeding slivers to a spinning unit
    Patent number: 5175982
    Abstract: 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: Grant
    Filed: June 21, 1991
    Date of Patent: January 5, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Arrangement for pneumatic false-twist spinning
    Patent number: 5175991
    Abstract: In an arrangement for pneumatic false-twist spinning, an intake nozzle, a suction roller and a false-twisting nozzle are arranged between a drafting unit and a withdrawal device in a false-twisting zone. The suction roller is driven to rotate at a circumferential speed which is higher than the delivery speed of the drafting unit and the withdrawal speed of the withdrawal device.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: January 5, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Spinning machine for pneumatic false-twist spinning
    Patent number: 5172542
    Abstract: In a spinning machine for pneumatic false-twist spinning, a plurality of spinning points are provided which are each equipped with one drafting unit. Two air nozzles are connected behind a pair of delivery rollers of the drafting unit and are pivotable around a separate swivel shaft and are connected by a restricted guidance in such a manner that, by an actuating movement, they can be moved into servicing positions which deviate from one another.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: December 22, 1992
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Josef Scholz
  • Arrangement for conveying packages away from a spinning machine
    Patent number: 5168696
    Abstract: For a spinning machine, an arrangement is provided for the conveying of finished packages which, following an end of the spinning machine, comprises a transfer point for receiving a number of packages arranged behind one another in a row, which is followed by a stationary intermediate storage device for a plurality of rows of packages to which a removal device for the packages is assigned.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: December 8, 1992
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Gerd Stahlecker
  • Arrangement for the intermediate storage of a double yarn
    Patent number: 5105613
    Abstract: In the case of an arrangement for the intermediate storage of a double yarn formed of two yarn components, a suction chamber is provided which has an air permeable depositing surface for the double yarn. In addition, an air nozzle is provided at the inlet side of the suction chamber which receives the double yarn and delivers it to the suction chamber.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: April 21, 1992
    Assignees: Hans Stahlecker, Fritz Stahlecker
    Inventors: Werner Zott, Winfried Joos
  • Arrangement for the temporary storage of a yarn
    Patent number: 5094377
    Abstract: In an arrangement for the temporary storage of a yarn between a splicing device and a continuously yarn-delivering delivery device, a ring-shaped depositing chamber is provided, which chamber can be rotated around a shaft which is directed transversely to the yarn-conveying direction, the bottom of this depositing chamber being air-permeable and connected to a suction device.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: March 10, 1992
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Tangential belt drive for spinning or twisting machines
    Patent number: 5069027
    Abstract: In the case of a tangential belt drive for spinning or twisting machines having several rotating elements driven by a common tangential belt and having belt guiding members, which can be adjusted for correcting the moving direction of the tangential belt, it is provided that, along the tangential belt, several sensors are arranged which sense deviations from a given moving direction, and in the control elements are assigned to at least some of the belt guiding members, these control elements being controlled by an analyzing device which processes the signals of the sensors.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: December 3, 1991
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Gerd Stahlecker
  • Tangential belt drive for a spinning or twisting machine
    Patent number: 5065571
    Abstract: A tangential belt drive for a spinning or twisting machine is disclosed for a machine having spindles on both sides of the machine. The spindles are combined into several groups in the longitudinal direction of the machine. One tangential belt is assigned to a drive in each case to each group, which belt moves along both sides of the machine. It is provided that the tangential belts of adjacent groups are guided by deflecting guides such that space for the housing of machine frames is left outside the travel paths enclosed by the tangential belts.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: November 19, 1991
    Assignee: Fritz Stahlecker
    Inventor: Hans Stahlecker
  • Method of making a bearing for spindles of spinning or twisting machines
    Patent number: 5065512
    Abstract: In the case of a bearing for spindles of spinning or twisting machines, which contains a spindle bearing housing, a bolster, a centering tube, a pivot bearing and a step bearing sleeve, it is provided that a predetermined bearing play of the step bearing sleeve is adjusted to a desired dimension by maching the radial interior surface of the step bearing sleeve while the sleeve is already mounted in the centering tube.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: November 19, 1991
    Assignee: Fritz Stahlecker
    Inventor: Hans Stahlecker
  • Drafting unit for a spinning machine
    Patent number: 5042112
    Abstract: In a drafting unit for a spinning machine having an apron guide between a pair of rollers, it is provided that the bottom apron wound around a bottom roller is tensioned by means of a movable bottom apron bridge.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: August 27, 1991
    Assignee: Fritz Stahlecker
    Inventor: Hans Stahlecker
  • Holding arrangement for a spinning or twisting spindle
    Patent number: 5038554
    Abstract: In the case of a holding arrangement for a spinning or twisting spindle at a spindle rail, a holder is provided which has a fastening part that can be mounted at the spindle rail and a holding part receiving the spindle bearing housing. In addition, devices are provided for the adjusting of the relative position of the holding part with the spindle bearing housing with respect to the fastening part.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: August 13, 1991
    Assignee: Fritz Stahlecker
    Inventor: Hans Stahlecker
  • High-draft drafting unit
    Patent number: 5014398
    Abstract: In a high-draft drafting unit for a spinning machine having several drafting zones which are each delimited by pairs of rollers, it is provided that the working width of the pairs of rollers in the travel direction of the silver is reduced in one or several steps.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: May 14, 1991
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Hans Stahlecker
  • Bearing for spindles of spinning or twisting machines
    Patent number: 4997291
    Abstract: In the case of a bearing for spindles of spinning or twisting machines having a spindle bearing housing which contains a collar bearing and a step bearing for a spindle shaft which is provided with a driving wharve reaching over the collar bearing, it is provided that the collar bearing is a needle bearing, and that the driving wharve has an outside diameter of no more than 17 mm.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: March 5, 1991
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Hans Braxmeier, Hans Stahlecker
  • Drafting unit for a spinning machine with movable cover
    Patent number: 4985967
    Abstract: In the case of a drafting unit for a spinning machine, a loading support is provided which has two arms extending in parallel with respect to one another at a distance which accommodate the holding devices for the shafts of the pressure roller twins and which are reinforced to form a frame by means of cross-struts. In addition, a cover is provided which covers the loading support and the pressure rollers and which can be swiveled away without interrupting the spinning operation.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: January 22, 1991
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Hans Stahlecker
  • Process for producing a twisted yarn feed spool
    Patent number: 4974409
    Abstract: In the case of a process for producing a twisted yarn from slivers that are drawn to the desired size and subsequently are prestrengthened by means of pneumatic false twisting, it is provided that the fiber ends in the form of helixes are wound around the core with such a steep slope that, during the twisting, the fiber ends that were previously wound around the core are wound off the core as much as possible.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: December 4, 1990
    Assignees: Fritz Stahlecker, Hans Stachlecker
    Inventors: Fritz Stahlecker, Hans Stahlecker
  • Drafting unit for a spinning machine
    Patent number: 4972554
    Abstract: In the case of a drafting unit for a spinning machine, it is provided that the pressure roller and the bottom roller of the pair of delivery rollers have a smaller diameter than the pressure roller and the bottom roller of the preceding pair of rollers, and in that the thickness of the covering of the pressure roller of the pair of delivery rollers amounts to at least approximately 4 mm. The bottom roller of the pair of delivery rollers has a profiling, the depth of which is no larger than 0.4 mm.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: November 27, 1990
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Hans Stahlecker
  • Drafting unit for spinning machines
    Patent number: 4972555
    Abstract: In the case of a drafting unit for spinning machines, it is provided that the bottom roller and the pressure roller of a pair of delivery rollers have smaller diameters than the preceding pair of rollers, and that the pressure roller of the pair of delivery rollers is designed to have a smaller diameter than the pertaining bottom roller.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: November 27, 1990
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Hans Stahlecker