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| Number | Title | Issue Date |
| 7836558 | Device on a drafting system of a draw frame for textile fibre slivers In a device on a drafting system for textile fiber slivers with weighting of the upper rolls of the drafting system which comprises roll pairs arranged one behind the other, the pairs having lower and upper rolls, the rotating journals at the ends of the upper roll ... | 11/23/2010 |
| 7331086 | Arrangement at a draw frame comprising a suction device for removing dust, fibre dust and the like In an arrangement at a draw frame including a suction device for removing dust, fiber dust and the like, in which a funnel and a pair of draw-off rollers are present at the outlet of the draw frame immediately after a web-guiding element, the suction removal device ... | 02/19/2008 |
| 7325390 | Twin unit comprising two drafting devices for a spinning machine A twin unit has two drafting devices for drafting fiber strands and is applicable in a spinning machine. The twin unit includes a common housing for the two drivable drafting devices, whereby the housing is detachably mounted in a machine frame. The drafting devices... | 02/05/2008 |
| 7174606 | Pressure cylinder for a drafting arrangement of a textile machine A pressure cylinder including a cylinder housing having one end including an opening. A piston is axially displaceable within the cylinder housing. A piston rod is coupled to the piston and extends through the opening at the one end of the cylinder. A cylinder base ... | 02/13/2007 |
| 7096542 | Method and apparatus at a draw frame for fibre slivers, for adjusting the nip line spacing of a drawing mechanism In a method, at a draw frame for fibre slivers, of adjusting the nip line spacing of a drawing mechanism, which has at least two drawing mechanism roller combinations, of which at least one is so mounted that it can be adjusted, each drawing mechanism roller combina... | 08/29/2006 |
| 7076840 | Draft device It is an object of the present invention to provide a draft device DR including draft rollers which, when a draft device composed of a plurality of draft roller pairs is used, can reduce the adverse effect of associated air currents resulting from the rollers rotati... | 07/18/2006 |
| 7051405 | Device on a draw frame for textile slivers, having roller pairs arranged one after the other and a roller-cleaning device In a device on a draw frame for textile slivers, having roller pairs arranged one after the other and a cleaning device, for example a cleaning lip, cleaning rod, for each upper roller, in which the loading device for each upper roller has at least two presser eleme... | 05/30/2006 |
| 6971802 | Bearing preload cage assembly A bearing preload cage assembly for rotatably supporting an axially loaded shaft includes a bearing housing including stationary axially opposed supporting members, first and second axially spaced bearings, each including inner and outer races and rolling elements, ... | 12/06/2005 |
| 6564431 | Silver deflecting device positioned between two drafting roll pairs of a silver drafting unit A fiber processing machine includes a sliver drafting unit which has first and second adjoining roll assemblies each defining a nip through which a sliver runs in a sliver advancing direction. The second roll assembly is spaced downstream of the first rol... | 05/20/2003 |
| 6332246 | Locating frame for units for drawing and compacting bundles of textile fibers A locating frame for drawing and compacting units of a pair of adjacent spinning stations in a spinning machine where each drawing unit has a pressure roller which supplies the bundle of fibers to the compacting unit and which rotates a pressure roller of... | 12/25/2001 |
| 6237196 | Top roller of a drafting apparatus The shaft 13 of a top roller T of a drafting device D is segmented into sections. The bearing holding section 13e includes a large diameter section at the base end and small diameter section 13e' on the far end. A first bearing 14c is fitted over the larg... | 05/29/2001 |
| 6209305 | Driving and supporting device for transporting roller for textile fibers A driving and supporting device for a transporting roller for textile fibers formed as a drawing roller in an open end spinning machine, the device has an electric motor for driving a transporting roller and having a drive shaft, a device part which is co... | 04/03/2001 |
| 6182333 | Drafting system spinning roller for producing thread The spinning cylinder for drafting systems comprises a cylindrical roll body (1) forming a sliding bearing together with a sliding bearing bush (3) which is slid on and axially fixed. The sliding bearing bush (3) includes a cylindrical socket (4) made of ... | 02/06/2001 |
| 6134752 | Loading mechanism for the upper rolls of a drafting mechanism A pneumatically energized loading mechanism for a drafting device is proposed for loading the upper rolls of the device. This mechanism possesses pneumatic cylinders which subject the upper rolls to a force, which acts from a holder plate (4) for the secu... | 10/24/2000 |
| 6032336 | Top roller for a draft apparatus When a roller cylinder of a top roller is installed, it may collide against an outer bearing and damage it. Since the roller cylinder is loosened, when drafting is executed at a high speed, the roller cylinder may vibrate, causing non-uniform drafting. A ... | 03/07/2000 |
| 6012277 | Yarn spinning from fibre sub-assemblies with variation of their paths of travel, relative positions or twist levels A yarn is spun by dividing a traveling fiber assembly into a plurality of fiber sub-assemblies, causing the sub-assemblies to traverse different paths and then recombining them, wherein the paths are sufficiently proximate for fibers to continuously trans... | 01/11/2000 |
| 5991977 | Drawing unit for a fiber processing machine particularly a regulated drawing frame for processing cotton A drawing unit for drawing sliver includes first and second drawing roll pairs being spaced from one another in the direction of sliver advance. One drawing roll in each drawing roll pair is a driven roll. There are further provided first and second drive... | 11/30/1999 |
| 5799374 | Spinning machine for the doubling or stretching of fiber bands A spinning machine for the doubling or stretching of fiber bands with a rolling section having lower rolls which are secured in journal blocks, and wherein the upper rolls may be also secured on said journal blocks with pressure means for the loading of s... | 09/01/1998 |
| 5796220 | Synchronous drive system for automated textile drafting system An automated drafting system particularly suitable for drafting textile strands of sliver is provided. The automated drafting system includes a synchronous drive sliver drafting roller system utilizing toothed gears in the preferred embodiment operatively... | 08/18/1998 |
| 5608948 | Compression rod having rectangular shape The instant invention relates to a compression bar such as is used in the main drafting zone of drafting rollers of the textile industry. The invention considerably reduces deposits on a compression bar. The fixed compression bar has a rectangular cross-s... | 03/11/1997 |
| 5553357 | High bulky wool spun yarn and a drafting apparatus for preparing the yarn A high bulky wool spun yarn for knitting or weaving, which has high bulky properties formed by bulky loops in the bundle of the yarn, and a drafting system for making the same is provided. The drafting system includes a spinning machine with an improved f... | 09/10/1996 |
| 5528799 | Thread-guiding component with improved surface Described are thread-guiding components for apparatus for producing, treating and processing fiber materials, having a surface which comes into contact with the fiber materials defined by certain values of the maximum averaged roughness depth Rz | 06/25/1996 |
| 5438733 | Cotton drafting frame A drafting frame includes first and second drafting roll pairs being spaced from one another consecutively in the direction of sliver advance and each being formed of two cooperating drafting rolls; first and second drive motors; a first torque transmitti... | 08/08/1995 |
| 5412847 | Loose-boss top roller A loose-boss top roller includes an arbor inserted into a loose-boss on which a hard rubber material is fixed, needle bearings inserted between the loose-boss and the arbor in both ends of the loose-boss, one end of each of a pair of joints being inserted... | 05/09/1995 |
| 5380118 | Shaft coupling for bottom cylinders of drafting units on spinning machines In the case of a shaft coupling for bottom cylinders of drafting units on spinning machines, a shaft is provided on its end with an area of a reduced diameter which engages in a longitudinal bore at the end of the other shaft. In the area of the longitudi... | 01/10/1995 |
| 5048157 | Drafting arrangement for spinning machines The drafting arrangement is provided with a guide element between the front roller pair and the operative unit formed by an apron and a roller. The guide element is disposed for guiding a length of fiber between the roller of the operative unit and the fr... | 09/17/1991 |
| 5038553 | Drafting arrangement for false twist spinning The delivery roller pair are made with continuous uninterrupted cylindrical surfaces so that air flows on the input side converge in the nip and then flow from the central zone thereof to opposite end zones. In addition, the air flows on the output side f... | 08/13/1991 |
| 5035027 | Means for manipulating a drafting roller carrier of a textile machine An apparatus for manipulating the drafting roller carrier of a textile machine includes a handle for selectively maintaining the drafting roller carrier in an operative position in which the upper drafting rollers on the carrier are in nip engagement with... | 07/30/1991 |
| 5022123 | Draft mechanism having roller pairs connected to draft ratio controlled motors by timing belts A draft mechanism for use on a spinning machine includes a series of roller pairs each including a bottom roller and a top roller. The roller pairs are connected to output shafts of motors through the use of timing belts. The motors are electrically contr... | 06/11/1991 |
| 5016323 | High-draft drafting device for a flyerless spinning process The drawframe has a preliminary drafting zone with a draft of from 4 to 8 as well as a main drafting zone with a draft of at least 30. In addition, a deflecting rod is disposed in the preliminary drafting zone in order to deflect the flow of fiber by abou... | 05/21/1991 |
| 5012557 | Drafting unit with detachably mounted support components for bottom rollers A drafting unit for a spinning machine has several stub shaft supported bottom rollers which are each assigned to a spinning point and which are in driving connection with drive shafts extending through in longitudinal direction of the machine. To facilit... | 05/07/1991 |
| 5010624 | Spinning machine having several spinning points A spinning machine having several spinning points is disclosed having at least one drafting unit assigned to each spinning point. Each drafting unit has several top rollers and several drivable bottom rollers. At least the bottom rollers which are assigne... | 04/30/1991 |
| 5010494 | Method and apparatus for detecting mechanical roll imperfections in a roller drafting system A drawframe is disclosed which has a plurality of sets of draw rolls and includes a provision for the early detection of imperfections in rotating elements in the drawframe. The separation of the pairs of rolls is monitored, and a signal representative of... | 04/23/1991 |
| 4999884 | Drawing mechanism for drawing textile fibers The drawing mechanism for drawing textile fibers includes an input nip between a first pressure roller (6) and a first drafting roller (1), a first intermediate nip between a second pressure roller (7) and a second drafting roller (2), and an output nip b... | 03/19/1991 |
| 4991263 | Spinning machine drafting unit arrangement In the case of a spinning machine having a plurality of drafting units, which each contain several top rollers and bottom rollers, and in which the bottom rollers are each constructed as roller sections which can be individually separated form a central d... | 02/12/1991 |
| 4987734 | Ring spinning machine The ring spinning machine has separate drives for the spindles, the delivery rollers and the other rollers of the drafting device. The inverters of the corresponding drive motors are fed from a D.C. intermediate circuit so that all the drives stop simulta... | 01/29/1991 |
| 4965920 | Fluid heated roll apparatus and method An apparatus and method are provided wherein a cavity defined by a rotating hollow member, such as a draw roll in a fiber processing system, is supplied with a hot fluid so as to heat the exterior surface of the hollow member. The fluid is withdrawn from ... | 10/30/1990 |
| 4894886 | Blended yarn producing device A blended yarn producing device includes a draft device having back rollers, middle rollers and front rollers and a twisting device succeeding the draft device, which is constituted such that a trumpet guide for introducing slivers of different types sepa... | 01/23/1990 |
| 4878268 | Device for drawing roves or slivers of fibers on a spinning machine This invention relates to a device for drawing roves or slivers of fibers on a spinning machine with a view to converting this material into spun yarns, of the type incorporating pendulous arms, constituted essentially by an assembly comprising, mounted o... | 11/07/1989 |
| 4845813 | Roller drafter, process of use, and products produced thereby Disclosed is a new roller drafter for drafting and aligning fibers in a strand or strip of card web e.g. for producing filament-wrapped yarn. The improvements include, increasing (in the direction of strip or strand movement) the distances between nips of... | 07/11/1989 |
