Formed Silvers Patents (Class 19/157)
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Patent number: 5647097Abstract: A process, and machine for carrying out the process, for severing a fiber sliver at a textile machine includes conveying the fiber sliver by a pair calendar rollers through a sliver guiding channel of a rotary plate into a sliver can disposed below the rotary plate. The calendar rollers are stopped, and thus also the conveyance of the sliver. A severing point is defined in the sliver downstream of the calendar rollers by drafting the fiber sliver with a moveable clamping device at a desired location of the severing point. Once the fiber has been drafted at the severing point, the sliver is severed by displacement of the can from below the rotary plate.Type: GrantFiled: May 5, 1995Date of Patent: July 15, 1997Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Albert Kriegler, Bernhard Mohr
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Patent number: 5636411Abstract: Disclosed is a process and a device for automatic introduction of a fiber sliver into a textile machine equipped with a feed mechanism. The end of the fiber sliver is brought into a defined receiving position in which it is introduced into the feed mechanism. A predetermined length of the end of the fiber sliver is seized. The sliver is then shortened to a second predetermined length and is then introduced into the feed mechanism.Type: GrantFiled: June 6, 1995Date of Patent: June 10, 1997Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Dietmar Greis, Robert Tuschl
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Patent number: 5621948Abstract: A method of processing and depositing sliver includes the following steps: drafting the running sliver in a drawing frame; forwarding the sliver by the drawing frame to a coiler head having a sliver outlet; depositing the sliver by the coiler head into a coiler can located underneath the coiler head; replacing a coiler can filled with sliver with an empty coiler can; and rupturing the sliver during the replacing step. To obtain the desired rupture of the sliver, the draft of the running sliver is increased in the drawing frame to such an extent as to provide a location of reduced thickness in the running sliver. Thereupon the filled can is moved away from under the coiler head when the location of reduced thickness in the running sliver is situated in a zone of the sliver outlet of the coiler head.Type: GrantFiled: March 8, 1996Date of Patent: April 22, 1997Assignee: Trutzschler GmbH & Co. KGInventor: Reinhard Hartung
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Patent number: 5544389Abstract: A sliver piecing machine which can decrease the time of the sliver piecing work and which permits replacement of an empty can row by a full sliver can row between the work of cutting the spun sliver and the subsequent sliver piecing work. The sliver piecing machine is moved along traveling rails placed above the can rows. A housing of the sliver piecing machine has a sliver cutting device and a sliver piecing device which are respectively provided on the front and rear sides in the direction of movement of the sliver piecing machine along the traveling rails. The sliver piecing machine performs only the sliver cutting work in the forward movement thereof, and only the sliver piecing work in the backward movement. After the sliver cutting work, the empty can row is replaced by the full can row, and the sliver piecing work is then performed.Type: GrantFiled: January 31, 1994Date of Patent: August 13, 1996Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Keiji Onoue, Yukio Saito, Takashi Imai
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Patent number: 5487208Abstract: A device is provided for the detection of breakage of textile fiber slivers before a draw frame of the textile industry. The device must detect breakage of presented fiber slivers. The invention improves the reliability of detection of sliver breakage of presented textile fiber slivers at very high sliver intake speeds of a draw frame. It is a characteristic of the invention that the monitoring device is provided with a deflection device for the fiber slivers which ensures that any broken fiber slivers are detected by the monitoring device.Type: GrantFiled: December 9, 1993Date of Patent: January 30, 1996Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventor: Friedrich Hauner
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Patent number: 5448801Abstract: A process and device are utilized for severing a fiber sliver on a draw frame. A fiber sliver is conveyed through a calender roller pair of the draw frame to a sliver guiding channel of a rotary plate. The sliver is deposited through the rotary plate into a storage can. A mechanical severing device is operably disposed to sever the fiber sliver in an area between the calender roller pair and the outlet of the sliver guiding channel.Type: GrantFiled: March 2, 1994Date of Patent: September 12, 1995Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Gohler Wolfgang, Zehndbauer Alfons
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Patent number: 5398382Abstract: An apparatus for removing sliver residues from a coiler can includes a transporting carriage for transporting a coiler can along a path of travel. The transporting carriage has an undercarriage; two generally vertically oriented walls supported on the undercarriage and having respective upper portions; a transverse beam interconnecting the walls at the upper portions thereof; a receiving bay defined together by the walls and the transverse beam for accommodating a coiler can; and a generally vertically oriented throughgoing aperture provided in the transverse beam and situated above the receiving bay. The apparatus further has a suction device including a suction nozzle being in alignment with the throughgoing aperture and extending from above theretoward when the transporting carriage is in position at the suction device.Type: GrantFiled: August 31, 1993Date of Patent: March 21, 1995Assignee: Trutzschler GmbH & Co. KGInventor: Ferdinand Leifeld
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Patent number: 5309603Abstract: The invention relates to a device to condense and guide a fiber sliver, in particular in a spinning plant preparation machine having a sliver funnel. The funnel is followed by draw-off rollers which are surrounded on both sides by guide surfaces. The lateral distances between the guide surfaces and the draw-off rollers can be adjusted independently of each other. A process is also provided according to which the distance between the guide surfaces is selected to be greater for puffed fiber material than for non-puffed fiber material. Furthermore, the distance between the guide surfaces is selected to be greater with synthetic fiber material than with natural fibers.Type: GrantFiled: October 29, 1992Date of Patent: May 10, 1994Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Rudolf Oexler, Friedrich Hauner
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Patent number: 5299343Abstract: A creel device for a drawing frame, having a drive train for lifting rollers for taking out slivers from respective cans. In one embodiment, the cans are divided into two groups each constructed at consecutively located cans. The drive train is divided into two sections for driving respective lifting rollers for respective groups of cans. The basic section is for driving lifting rollers for the group adjacent the draft part, and the second section is for driving lifting rollers from the group remote from the drafting part. The first section is connected to a rotating movement source in the machine frame, while the second section is connected to a variable speed motor.Type: GrantFiled: November 9, 1992Date of Patent: April 5, 1994Assignee: Howa Machinery, Ltd.Inventors: Yoshiharu Tomoto, Hiroshi Nagaosa
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Patent number: 5274884Abstract: The present invention is directed to a drawframe having a sliver delivery device and a computer part for maintaining a predetermined quality of sliver, wherein there is a predetermined overproduction from a card and/or a drawframe relative to a spinning machine. The arrangement temporarily decreases production to temporarily compensate for the overproductions. The sliver which is produced during the decrease in production may be delivered to a separate can.Type: GrantFiled: August 9, 1991Date of Patent: January 4, 1994Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Urs Meyer
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Patent number: 5272790Abstract: The present invention is directed to a card having a sliver delivery device and a computer part for maintaining a predetermined quality of a carded sliver, wherein there is a predetermined overproduction from a card and/or a drawframe relative to a spinning machine. The arrangement temporarily decreases production to temporarily compensate for the overproductions. The sliver which is produced during the decrease in production may be delivered to a separate can.Type: GrantFiled: August 9, 1991Date of Patent: December 28, 1993Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Urs Meyer
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Patent number: 5140722Abstract: A sliver piecing device includes a pair of holding members for piling and holding ends of slivers to be pieced, and a plurality of needles extending through the holding members and being inserted into the slivers to force the fibers into the other sliver and to intertwine the fibers with each other. In a further embodiment of the piecing device, pressurized air may be used, along with the needles, to force the fibers of one sliver into the other and to intertwine the fibers with each other.Type: GrantFiled: December 5, 1990Date of Patent: August 25, 1992Assignee: Murata Kikai Kabushiki KaishaInventor: Yasuo Akiyama
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Patent number: 5065477Abstract: The device for increasing the cohesion length of the slivers is embodied by a pair of calendar rollers. Each calendar roller has a plurality of transversely disposed protuberances of rounded shape for interengaging in spaced relation with each other in order to slightly crimp a sliver passing through the gap between the rollers. The protuberances are adapted to one another in gear-like manner.Type: GrantFiled: September 20, 1989Date of Patent: November 19, 1991Assignee: Rieter Machine Works, Ltd.Inventors: Hansulrich Eichengerger, Heinz Clement
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Patent number: 4999883Abstract: For draft- and trouble-free coiling of a sliver arriving from a deflection roll into a sliver can, there is provided a coiler roll which, in cooperation with a nip or pinch roll, guides the sliver through an infeed funnel and deposits the sliver directly upon sliver coils already located in the sliver can. For this purpose, the circumference of the coiler roll projects by a predetermined amount deeper into the sliver can than the underside or lower surface of a coiler plate.Type: GrantFiled: April 7, 1989Date of Patent: March 19, 1991Assignee: Rieter Machine Works Ltd.Inventors: Peter Fritzsche, Martin Schwager, Hans Speich
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Patent number: 4996748Abstract: The invention relates to a spinning can creel for the feeding of textile fiber slivers to a processing machine with which several spinning cans are arranged along a spinning can creel, and a take-off mechanism is assigned to every textile fiber sliver for the transport of the textile fiber slivers. The textile fiber slivers are brought to a processing machine over a transport unit.Type: GrantFiled: October 16, 1989Date of Patent: March 5, 1991Assignee: Maschinenfabrik Rieter AGInventor: Erich Jornot
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Patent number: 4993121Abstract: This invention relates to an apparatus positioned within an automatic change-over system for cans at the exit of a drawing frame, gill box or similar machine. The apparatus prevents the escape of fibre sliver from the full cans, those latter being fitted with a semicircular strip pivoted at two diametrically opposing points below their upper rim. The apparatus has a mechanism for positioning the semicircular strip frontally forwards in the exit direction of the cans and a manipulator provided at its end with a gripper which embraces and grips the semicircular strip to raise it and arrange it above the can for the purpose of compressing the top layer of fibre sliver towards the inside of the can. This action prevents the sliver escaping from the full cans during their transportation to storage zones or during their distribution to the production departments for subsequent processing.Type: GrantFiled: May 17, 1989Date of Patent: February 19, 1991Assignee: Savio, S.p.A.Inventors: Sandro Sartoni, Gian F. Bonanni
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Patent number: 4987645Abstract: A first sliver in an exhaust can (2F) is introduced and held in a recess (38a) of a sliver piecing unit (38) while gripped by a sliver gripper (34). The first sliver is severed by the displacement of the gripper (34) away from the recess (38a) so that a trailing end of the first sliver is formed in the recess (38a). Next, a second sliver in a reserve can (2B) is introduced and held in the recess (38a) in the same way as for the first sliver and a leading end of thereof is formed in the recess (38a) so that the sliver ends overlap each other. The piecing operation is carried out on the overlapped sliver ends in a known manner.Type: GrantFiled: September 18, 1990Date of Patent: January 29, 1991Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Yoshio Kawasaki, Yoshiaki Kishita, Tatsutake Horibe, Masakatsu Fujii, Keiji Onoue
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Patent number: 4967449Abstract: The present invention refers to a device for depositing a textile sliver in a can, comprising a bent delivery pipe, which is adapted to be rotated about a substantially vertical axis and the mouth of which ends in front of a stationary wall projecting into the cross-section of the mouth of the bent delivery pipe.The task to be solved by the present invention is the task of simplifying a device of the type mentioned at the beginning and treating the sliver with care at the same time.In accordance with the present invention, this task is solved by the features that a pressure-exerting member, which is directed towards the stationary wall and which moves together with the belt delivery pipe, is arranged behind the mouth of the bent delivery pipe when seen in the direction of rotation, the coefficient of friction of the wall being higher than the coefficient of friction of the pressure-exerting member, when measured in the direction of rotation of the bent delivery pipe.Type: GrantFiled: August 1, 1989Date of Patent: November 6, 1990Assignee: Hollingsworth GmbHInventor: Hermann E. Gasser
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Patent number: 4838018Abstract: For the starting of slivers at a textile machine, two staple fiber slivers are individually inserted into two guides. The first guide assumes a feeding position and guides the staple fiber sliver being fed into a feeding device. The second guide holds the second staple fiber sliver in a readiness position. When the first staple fiber sliver going to the feeding device is interrupted, the first, empty guide is brought from its feeding position into its readiness position. At the same time the second guide, together with the staple fiber sliver inserted into it, is brought into the feeding position. Thereupon, a new staple fiber sliver is introduced into the first guide, now in the readiness position, whereupon a new sliver is put in readiness. The two guides are connected to each other with respect to movement. The invention also includes the process for replacing an interrupted supply of sliver to reduce down time to a minimum.Type: GrantFiled: June 24, 1988Date of Patent: June 13, 1989Inventor: Werner G. Hoeber
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Patent number: 4829758Abstract: A combination apparatus for splicing and entwining fiber slivers. A nozzle support arrangement for the nozzles of a splicing mechanism is provided and comprises essentially round rods that are adapted to be disposed horizontally one above another, with the nozzles of the splicing mechanism opening on the surfaces of the rods via nozzle outlets that are surrounded by respective raised portions of the rods. A guide mechanism is provided downstream of the splicing mechanism for converting and bringing the fiber slivers into a flat sliver shape. The guide mechanism comprises the lowermost one of the horizontal rods, upon which the fiber slivers rest, plus two vertical guide rods that are disposed to the sides. Disposed downstream of the guide mechanism is a sliver funnel in which are successively disposed at least two pairs of further nozzles.Type: GrantFiled: January 29, 1988Date of Patent: May 16, 1989Assignee: Spinnereimaschinenfabrik Seydel & Co. GmbHInventor: Konrad F. Gilhaus
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Patent number: 4823597Abstract: An improved measuring device for measuring the unit weight of sliver as it passes through a trumpet includes a trumpet gauge plate for supporting the trumpet and a pair of weighted elements mounted on each side of the plate. The plate includes upper, lower and central portions wherein the lower portion includes an opening for supporting the trumpet and the central portion has a reduced cross section. A plurality of strain gauges for detecting deflections is mounted on front and rear surfaces of the central portions adjacent the lower portion and the weighted elements. The strain gauges are electrically connected in a modified Wheatstone Bridge configuration. Deflection sensings in strain gauges adjacent the weighted elements cancel out deflection sensings produced by external vibrations to produce an accurate measurement of the sliver weight.Type: GrantFiled: June 6, 1988Date of Patent: April 25, 1989Assignee: Myrick-White, Inc.Inventor: Homer S. White
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Patent number: 4816092Abstract: A procedure and a means for correcting the transversal profile of a chip, fibre or equivalent mat being formed on a conveyor belt, said chip mat being formed with the aid of one or several rolls, most appropriately rake rolls, provided above the conveyor belt, in which procedure the free space for the chip mat between the last roll and the conveyor belt is adjusted transversally to the conveyor belt. In the procedure of the invention, substantially at the last roll the height level of the conveyor belt is raised and lowered stripwise transversally to the conveyor belt in order to regulate the transversal profile of the chip mat.Type: GrantFiled: October 13, 1987Date of Patent: March 28, 1989Assignee: Rauma-Repola OyInventor: Pentti Raura
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Patent number: 4763387Abstract: The fiber strip feed device provided with a fiber strip feed duct between the entrance rolls and the calendering rolls in a spinning machine, particularly in a set of drafting rolls of the spinning machine, has a tangential housing air duct opening into the fiber strip feed duct which is cylindrical. A fiber strip funnel is located downstream of the feed duct toward whose constricted inner space a high pressure pipe is directed whose working direction crosses the axis of the fiber strip funnel for fiber strip feed.Type: GrantFiled: April 6, 1987Date of Patent: August 16, 1988Assignee: Zinser Textilmaschinen GmbHInventor: Jakob Bothner
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Patent number: 4754527Abstract: An apparatus for entwining the fibers of slivers of stretch break-conversion machines, cut-conversion machines, carding operations, drawing operations, etc., with the slivers including individual fibers that are initially disposed essentially parallel to one another. To improve the cohesion of the fiber slivers, and to make it possible to transport and further process the slivers without difficulty, and without limiting the range of application of the previously advantageous conventional processes, it is proposed to convert the fiber sliver into a sliver having an essentially flat shape, to deflect a portion of the fibers of the sliver from their parallel orientation, and to further deflect the already deflected fibers in the direction that is essentially perpendicular to these fibers, with this further deflecting step effecting entwining of the deflected fibers with those fibers that are still disposed in the parallel orientation.Type: GrantFiled: May 13, 1987Date of Patent: July 5, 1988Assignee: Spinnereimaschinenfabrik Seydel & Co. GmbHInventor: Konrad F. Gilhaus
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Patent number: 4701980Abstract: An improved method for the after-treatment of washed and dried fibre cable having a minimum mass of 250 ktex by crimping, fixing, cooling and optionally cutting or tearing is achieved in that the band width of the cable issuing from the drier with a covering density of at most 5 ktex/cm is reduced by at least 50% of the original band width with a corresponding increase in the packing density, is crimped in a stuffer box crimping means at a stuffer box pressure of from 4 to 10 N/cm and a stuffer box temperature of from 80.degree. to 95.degree. C., the crimping is fixed in or immediately after the stuffer box, the cable is deposited on the surface of an air-permeable conveyor belt, air is blown or sucked there through fibre package or conveyor belt and the cable is then optionally supplied to a tearing converter or a cutting machine.Type: GrantFiled: April 3, 1986Date of Patent: October 27, 1987Assignee: Bayer AktiengesellschaftInventors: Wolfgang Backer, Wolfram Wagner, Gunther Hahn, Ralf Miessen
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Patent number: 4630337Abstract: A ribbon lap unit contains support shafts for receiving and supporting a lap, a web transport means in the form of a web drafting mechanism, a web diverter, a diverter plate arrangement and a web collecting element. A web unrolled from the lap is fed through the web drafting mechanism and around the web diverter onto the diverter plate arrangement and thereafter onto the web collecting element. By means of the web diverter it is possible to arrange the diverter plate arrangement beneath the drafting mechanism. This, in turn, enables constructing a very compact machine.Type: GrantFiled: October 1, 1984Date of Patent: December 23, 1986Assignee: Rieter Machine Works LimitedInventors: Giuseppe Verzilli, Rene Schmid
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Patent number: 4577372Abstract: Each drawing frame of a double drawing frame is provided with a diverting surface so that the transport direction of the infeed slivers removed from the cans to be emptied is arranged substantially at a right angle to the feed direction of these slivers on the sliver infeed of the drawing assembly.The first drawing passage is so close to and parallel to a second drawing passage that the emptied sliver cans are transported on the shortest path into the readiness position of the empty cans of the adjacent drawing passage. The cans filled by the drawing frames can be brought along the shortest path into a reserve row which is located immediately in front and parallel to the row with the cans to be emptied in the next drawing passage.Type: GrantFiled: June 20, 1984Date of Patent: March 25, 1986Assignee: Rieter Machine Works, Ltd.Inventor: Kurt Roder
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Patent number: 4259766Abstract: A condensing trumpet for a draw frame has internal passages formed in such a way as to receive two separate sliver types and bring them together in a sheath-core arrangement where one sliver completely surrounds the other.Type: GrantFiled: September 5, 1978Date of Patent: April 7, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventor: George J. Copoulos
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Patent number: 4232426Abstract: A device for gathering a running fiber web delivered by a pair of cooperating rolls (forming part of a web delivering assembly arranged downstream of a carding machine) includes at least one operationally substantially stationary guide element having a hollow guiding face. The guide element is supported downstream of and immediately adjacent to the rolls of the web delivering assembly. The hollow guiding face extends transversely to the direction of advance of the web as the latter leaves the rolls and shrouds at least one part of both rolls.Type: GrantFiled: March 16, 1978Date of Patent: November 11, 1980Assignee: Trutzschler GmbH & Co. KGInventors: Wolfgang Beneke, Paul G. Teichmann, Wilfried Weber
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Patent number: 4224719Abstract: An apparatus for feeding a reserve fibre sliver, as in a can creel machine, is shown as having a first piston-cylinder assembly actuatable to first piston-extended and second piston-retracted positions; the piston in turn operatively carries a reserve sliver guide and a second piston-cylinder assembly actuatable to a piston-extended condition and a piston retracted condition whereby when in a piston-extended condition a leading portion is constrained thereby and against a reserve sliver guide to prevent motion by said reserve sliver and whereby when in a piston-retracted condition the reserve sliver is free to move relative to the guide; the second piston-cylinder assembly, the guide and the reserve sliver held against the guide are moved, to a point in close proximity to the path of travel of a particular broken or run-out sliver, by the first piston-cylinder assembly when such is in the first piston-extended position; and the second piston-cylinder assembly, the guide and the reserve sliver carried within tType: GrantFiled: March 23, 1979Date of Patent: September 30, 1980Inventor: Beatrice Bulla
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Patent number: 4195388Abstract: An improvement in and to can creels for feeding fibre slivers to textile machines, wherein one or more reserve slivers are provided for and advanced when one or more of the normally fed fibre slivers are broken or run-out. A pair of feeding rollers automatically controls the advancement and the positioning of each reserve sliver in order to substantially maintain a feeding continuity between the broken or run-out normal sliver and the reserve sliver and between such reserve sliver and a newly introduced normal sliver.Type: GrantFiled: September 12, 1977Date of Patent: April 1, 1980Inventor: Beatrice Bulla
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Patent number: 4127920Abstract: Apparatus for textile fiber band or the like composed of staple fibers, wherein the fiber band is guided through a transport tube or duct and there is produced within the transport duct an air flow directed in the same sense as the feed or conveying direction of the fiber band.Type: GrantFiled: October 14, 1977Date of Patent: December 5, 1978Assignee: Luwa AGInventor: Hermann Gasser