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| Number | Title | Issue Date |
| 8099835 | Wearing coating for delivery rollers of a drawing roller frame The coating of the pressure roller (3) of a drawing roller frame for spinning frames comprises an outer layer and an inner layer fixed to the core of the pressure roller. The outer layer is thinner and harder than the inner layer and is embodied as an endless... | 01/24/2012 |
| 6988355 | Double-apron drafting unit for spinning machines A double-apron drafting unit for spinning machines has a delivery roller pair and an apron pair arranged upstream therefrom. The apron pair guides a fiber strand in the area of a delivery nipping line, with which it forms a wedge-shaped gap. Devices are provided for... | 01/24/2006 |
| 6604261 | Drafting frame for a spinning machine Downstream of the last roller pair of a drafting frame for a spinning machine, the roving is condensed in a fiber-bundling zone having a belt with perforations to which suction is applied. Another belt converges toward the belt with the perforations and e... | 08/12/2003 |
| 6477827 | Air-permeable transport belt for transporting a fiber strand to be condensed and method of making same In order to transport a fiber strand to be pneumatically condensed over a suction slit of a condensing zone of a spinning machine, a transport belt is provided which comprises, at least in the effective area of the suction slit, a porous area. The porous ... | 11/12/2002 |
| 6370737 | Drafting equipment with small double belts A drafting equipment is provided with a small double belt for spinning machines with a fiber bundling zone which follows the pair of output rollers of the main drafting field and is followed by a pair of delivery rollers. A pneumatic compression device is... | 04/16/2002 |
| 6341484 | Drafting frame for a spinning machine A sliver compactor is provided between a drafting roller of a drafting frame and the delivery unit which supplies the sliver to the spinning stations of the spinning machine. The sliver compactor has a shielding element juxtaposed with the perforated movi... | 01/29/2002 |
| 6338183 | Arrangement for condensing a fiber strand Downstream of a drafting unit of a spinning machine, a condensing zone is provided, in which a drafted fiber strand still in an untwisted state is condensed by bundling. The condensing zone comprises a stationary suction slit, over which the fiber strand ... | 01/15/2002 |
| 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 |
| 6327746 | Endless transport belt for transporting a drafted fiber strand and method of making same An endless transport belt transports a drafted fiber strand through a fiber bundling zone. The transport belt is provided with a perforation for a suction air stream which suctions the fiber strand. The transport belt is provided with a sufficiently smoot... | 12/11/2001 |
| 6318060 | Method and spinning machine for the production of core yarn A method and device for the production of core yarn (63), whereby a core yarn (12) is brought to a fiber slubbing (8) which has been refined in a drafting system before said slubbing is reinforced by twisting. The core yarn (12) is embedded in covering fi... | 11/20/2001 |
| 6272834 | Apparatus for condensing a drafted fiber strand A condensing zone is arranged downstream of the drafting apparatus of a ring spinning machine, through which condensing zone an air permeable transport belt transports the drafted fiber strand. A cleaning element is arranged at the transporting element, w... | 08/14/2001 |
| 6263656 | Arrangement and method for condensing a drafted fiber strand and method for making yarn therefrom A condensing zone is arranged downstream of the front roller pair of a drafting arrangement of a spinning machine, in which condensing zone a drafted roving or a sliver is condensed. The condensing zone has a suction device which has a closed hollow profi... | 07/24/2001 |
| 6185790 | Arrangement for condensing a drafted fiber strand A condensing zone for condensing a drafted twist-free fiber strand is arranged downstream of a drafting arrangement of a ring spinning machine. The condensing zone includes a stationary sliding surface having a suction slit extending essentially in a fibe... | 02/13/2001 |
| 6161258 | Spinning machine having a plurality of spinning stations An arrangement for condensing a drafted fiber strand is arranged at each spinning station of a spinning machine. The condensing arrangements each comprise a transport surface which transports the fiber strand over a suction slit of a suction device. A joi... | 12/19/2000 |
| 6112509 | Drafting equipment with small double belts A drafting equipment is provided with a small double belt for spinning machines with a fiber bundling zone which follows the pair of output rollers of the main drafting field and is followed by a pair of delivery rollers. A pneumatic compression device is... | 09/05/2000 |
| 6073314 | Device for condensing a drafted fiber strand A condensing zone is arranged downstream of the front roller pair of a drafting arrangement of a spinning machine, in which condensing zone a ready drafted fiber strand is condensed by means of rolling in the edge fibers before the yarn to be spun is impa... | 06/13/2000 |
| 6029318 | Drafting frame for a spinning machine A drafting frame for a spinning machine has a compaction unit at the downstream end of the drafting path which can be removed and other rollers and belts of the upper and lower arrays can be advanced as required to maintain the length of the paths of the ... | 02/29/2000 |
| 5918456 | Drafting frame for a textile machine A rail for supporting and guiding the lower belt of a drafting frame of a textile machine is provided with a coating of one or more of aluminum oxide, titanium dioxide, chromium oxide or molybdenum oxide in an oxide ceramic powder with a hardness of 800 t... | 07/06/1999 |
| 5638580 | Method of spinning all-wool yarn on cotton system Worsted grade all-wool of fair quality can be spun on cotton spinning system. Wool top is processed at first passage of cotton drawing frame instead of gill, with cutting and drafting with suitable distance between front and third rollers. Second and back... | 06/17/1997 |
| 5600872 | Double-belt draw frame A process and device for bundling a fiber composite which has been drafted in a drafting device having a pair of output rollers and a pair of delivery rollers gathers together the fiber composite leaving the pair of output rollers in a fiber bundling zone... | 02/11/1997 |
| 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 |
| 5531063 | Device for forming core/wrap yarn A device for forming core/wrap yarn is provided in which a core strand and one or more wrap strands are passed from the nip of a pair of rollers to a stationary support surface which is outwardly, downwardly curved and which includes an open channel there... | 07/02/1996 |
| 5465465 | Two-apron drafting unit comprising at least one sliver guide A two-apron drafting unit comprises at least one sliver guide which projects into the wedge-shaped gap of the roller pair which follows the apron unit. The sliver guide has a defined distance from the surfaces of the roller pair and can be moved within ce... | 11/14/1995 |
| 5335397 | Two-apron drafting unit for spinning machines In the case of a two-apron drafting unit for spinning machines, it is provided for the parallel alignment of the top apron cradle and of the pressure roller twin guided by it with respect to the pertaining bottom cylinder that the pressure roller holder a... | 08/09/1994 |
| 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 |
| 5014398 | High-draft drafting unit 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 sever... | 05/14/1991 |
| 4991388 | Draft device in spinning machine A draft device in a spinning machine comprising a pair of back rollers, a pair of middle rollers each provided with an apron belt, and a pair of front rollers. An outer peripheral part of the driving-side of middle roller is formed of a rubber.... | 02/12/1991 |
| 4976096 | System for producing core/wrap yarn A core wrap system is provided in which a core strand and wrap strands spaced from said core strand on each side of said core strand are passed from the nip of a pair of rollers to a stationary support surface that is outwardly, downwardly curved, and whi... | 12/11/1990 |
| 4972554 | Drafting unit for a spinning machine 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, a... | 11/27/1990 |
| 4972555 | Drafting unit for spinning machines 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 delive... | 11/27/1990 |
| 4967547 | Drafting unit for a spinning machine In the case of a drafting unit for a spinning machine having a drafting zone, which is delimited by two pairs of rollers each consisting of top rollers and bottom rollers and in which an apron guide is located, it is provided that the diameter of at least... | 11/06/1990 |
| 4920736 | Arrangement for interrupting the operation of an individual drafting frame at a spinning machine In an arrangement for interrupting the operation of an individual drafting frame at a spinning machine, devices are provided for reducing the contact of a sliver with the bottom rollers and particularly for lifting the sliver off the bottom rollers which ... | 05/01/1990 |
| 4901517 | Apparatus for the drafting section of ring spinning frames An improved apparatus for the drafting section of ring spinning frames is disclosed. The apparatus includes a front cot roll apron which permits the apparatus to be operated at higher than normal draft ratios without sacrificing spinning performance or pr... | 02/20/1990 |
| 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 |
| 4727626 | Control of fibers in apron drafting systems of machinery used in the spinning process An improved fiber control for an apron drafting system of a spinning frame is disclosed which includes a rear pair of rolls (3, 6) a middle pair of rolls (2, 5), and a front pair of rolls (1, 4). A silver guidance zone is formed between upper apron 8 and ... | 03/01/1988 |
| 4718225 | Pneumatic spinning machine An improved pneumatic spinning machine of the type which includes a draft device composed of a plurality of pairs of rollers, and an air injecting nozzle for producing whirling flows of air to act upon a bundle of fibers fed from the draft device. A front... | 01/12/1988 |
| 4692967 | Textile fiber drafting apron and method A textile fiber drafting apron and method of manufacture, wherein the apron is free of cord reinforcement and is formed of a single extruded layer of material. The outer fiber working surface has a smoothness comparable to conventional ground surface, and... | 09/15/1987 |
| 4680833 | Drawing apparatus A drafting apparatus for roving or sliver, designed for high speed pneumatic spinning machines. The drafting apparatus comprises inlet and outlet drawing pairs of rollers as well as pair of endless aprons. The upper drawing roller of the outgoing drawing ... | 07/21/1987 |
| 4644609 | Spinning machine drafting frame In order to make possible automatic restart of a spinning machine drafting frame after strand breakage in an easy way, a movable blocking member is insertable between the drive roller of the lower feed belt and the lower feed belt in the direction of the ... | 02/24/1987 |
| 4630434 | Roving blocking mechanism on draw frames of spinning machines A draw frame for a spinning machine is provided with roving blocking mechanism associated with its inlet rollers actuable on rupture of the remittant thread to arrest movement of the roving and is further provided with a sensor for detecting the continuit... | 12/23/1986 |
