US3090081A - Fiber handling arrangement and process - Google Patents

Fiber handling arrangement and process Download PDF

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Publication number
US3090081A
US3090081A US93453A US9345361A US3090081A US 3090081 A US3090081 A US 3090081A US 93453 A US93453 A US 93453A US 9345361 A US9345361 A US 9345361A US 3090081 A US3090081 A US 3090081A
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US
United States
Prior art keywords
roll
chevron
fibers
mass
recesses
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US93453A
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English (en)
Inventor
Norman E Klein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deering Milliken Research Corp
Milliken Research Corp
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Milliken Research Corp
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Filing date
Publication date
Priority to NL275433D priority Critical patent/NL275433A/xx
Application filed by Milliken Research Corp filed Critical Milliken Research Corp
Priority to US93453A priority patent/US3090081A/en
Priority to CH269262A priority patent/CH391528A/fr
Priority to BE614695A priority patent/BE614695A/fr
Priority to GB8407/62A priority patent/GB997572A/en
Priority to DED38308A priority patent/DE1178749B/de
Application granted granted Critical
Publication of US3090081A publication Critical patent/US3090081A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H2700/00—Spinning or twisting machines; Drafting devices
    • D01H2700/245—Conception or fabrication of drafting cylinders

Definitions

  • This invention relates to textile fiber handling apparatus, and more particularly to an improved staple fiber handling roll and roll arrangement which serves to exert a compacting action on a mass of staple fibers preparatory to forming the fibers into a yarn or the like.
  • a further feature lies in the novel employment of a unique drafting system employing a novel fiber compacting roll or the like.
  • Still a further feature lies in the employment of a fiber mass contacting surface which serves to exert a lateral camming and compacting force on the fiber mass by mechanical intercontact and relative motion between the fiber mass and cam surfaces formed on the fiber contacting surface.
  • the fiber mass is brought into and held in contact with the camming surface through the medium of air pressure exerted on the fiber mass in a novel manner.
  • Still another important feature of the invention resides in the straightening of leading hooks which normally occur in various masses of staple fibers, including carded sliver, roving, etc. This straightening action is particularly notable when employing the invention in a manner in which drafting occurs on the fibers while in engagement with the novel roll surface.
  • Still other advantages which accrue from the preferred embodiment of the invention include less fiy and higher possible velocities of fiber flow.
  • FIGURE 1 is a schematic view in perspective of a drafting arrangement constructed according to the present invention.
  • FIGURE 2 is a schematic line drawing showing the general path of the fibers through the drafting arrangement of FIGURE 1, as viewed from one end of the drafting rolls.
  • FIGURE 3 is an enlarged fragmentary illustration of the surface of the chevron roll of FIGURES l and 2.
  • FIGURE 4 is an enlarged and more detailed partially cutaway view of two side-by-side chevron rolls as such may be employed in an arrangement according to FIG- URES 1 and 2.
  • FIGURE 5 is a partial cutaway view of the stationary suction conduit or shoe which extends into the cavity formed in the chevron roll.
  • FIGURE 6 is a fragmentary view of a roll incorporating a modified preferred chevron surface configuration.
  • FIGURE 7 is a further fragmentary flat plan projection of a portion of the chevron configuration of the preferred roll of FIGURE 6.
  • FIGURE 8 is a section view taken along line 83 of FIGURE 7.
  • FIGURE 9 is a section view taken along line 9-9 of FIGURE 7.
  • a linear mass of staple fibers in the form of roving 11 is fed from a supply source (not shown) through a guide trumpet 13 to a drafting arrangement 15.
  • the drafting arrangement 15 is schematically illustrated for purposes of simplicity of explanation, and it will be understood by those skilled in the art that conventional refinements, such as aprons, clearers, etc., may be added thereto, if desired.
  • drafting rolls are provided, back rolls 17, 19, middle rolls 21, 23, and front rolls 25, 27.
  • at least one of each of these sets of rolls is driven, and each succeeding set of rolls is as usual driven at a faster peripheral rate than the preceding rolls in order to give the desired degree of drafting of the fibers in the zones between the respective pairs of rolls.
  • the fiber mass is twisted as it leaves the nip N of the front pair of rolls 25, 27 by the twisting action of a twisting and take-up device, which in this illustrative embodiment takes the form of a conventional ring-and-traveler twister take-up 29 onto which the drafted and twisted fiber mass is then taken up as yarn Y.
  • At least one, and preferably the lower front one 27, of the drafting rolls is formed in a novel manner and serves to impart a unique and highly advantageous lateral compacting action on the fiber mass as this mass passes over its peripheral surface.
  • This novel compacting force is preferably a combination of both pneumatic compacting action and mechanical camming compacting action.
  • the novel roll 27 is formed with a plurality of chevron shaped recesses 31 formed in its circumferential periphery.
  • chevron shaped recesses 31 preferably have their apices 31a lying substantially in a common imaginary plane extending perpendicular to the axis of rotation of the roll 27
  • the converging trailing edge surfaces 310 of the legs 31b of each of the chevron shaped recesses 31 form elfective converging cam surfaces which exert lateral compacting forces on the progressing mass of fibers as a function of differential movement between the fiber mass 11 and the peripheral surface of the roll 27.
  • the roll has a cavity 27a formed therein which is connected to a plurality, and preferably all, of the chevron shaped recesses 31 formed on the peripheral surface of the roll 2'7.
  • the V chevron recesses 31 form generally V-shaped apertures or air conduits, as shown more particularly in FIGURES 3 and 4.
  • a negative pressure (relative to the surrounding atmospheric pressure) is applied to the cavity 27a in the Zone preceding, including, and subsequent to the nipN of the front rolls 25, 27.
  • This negative pressure may be applied as by a stationary conduit 33 connected to a suitable vacuum source, such as the suction side of a blower 36.
  • the conduit 33 terminates within the cavity in the form of a stationary shoe 35 having an open convex mouth 35a which substantially conforms to the internal radius of curvature of the generally cylindrical cavity 27a.
  • the open convex mouth is disposed in registry with the line of chevron shaped recesses and is remova bly held in this position as by a fixed support 37 on the spinning or other fiber processing frame.
  • a filter 39 may be disposed in the conduit between the open convex mouth 35a and the vacuum source 35, if desired.
  • a hollow tube 41 having a small width slot 41a formed therein may be connected to the vacuum source 35, or other suitable vacuum source, as desired, the slot 41a being disposed beneath the lower peripheral surface of the roll 27.
  • each of the pairs of drafting rolls is suitably driven from a drive source 43 through a suitable mechanical drive connection 45, such as a gear train or cog belt drive of desired speed ratio proportions.
  • a suitable mechanical drive connection 45 such as a gear train or cog belt drive of desired speed ratio proportions.
  • the drive to the chevron roll may be through a cog belt 45a and a cog wheel 45!; centrally disposed on a common shaft 275 between two adjacent fiber handling positions, which in the present instance would be two adjacent spinning positions.
  • the common shaft 27b may have formed on its opposite ends the respective two chevron surfaced rolls 27 for two side-by-side spinning positions or the like, and may be rotatably mounted in suitable bearings 47.
  • the two suction conduits 33 may extend into the respective chevron rolls 27 through their opposite open ends.
  • the linear mass of staple fibers is passed through the forming trumpet 13 and drafting assembly 15 to the ring-and-traveler twister take-up 29.
  • the chev- Ion roll 27 exerts a sucking action on the mass of fibers 11 in the zone immediately preceding, including and subsequent to the nip N. This sucking action is effective to exert compacting forces on the fiber mass transverse to its direction of travel, thereby tending to compact the fiber cmass against the roll surface and to hold the fiber mass on the roll surface in the zone of the chevron recesses 31 which overlie the open convex mouth 35:! of the suction conduit shoe 35.
  • the chevron roll 27 is also traveling at a peripheral rate in excess of the mass of fibers 11 approaching this roll from the middle pair of rolls 21, 23, and accordingly there is relative linear motion between the chevron roll surface and the fibers lying on the surface of the chevron roll 27 in the zone preceding the nip N. In this zone the roll 27 is traveling faster than a substantial number of the fibers lying thereon, and substantial drafting takes place in this zone. Additionally, and of considerable importance, as a result of this relative motion between the chevron recessed roll surface and the fibers lying on the opposite sides of the apices 31a of the chevron recesses 31 are camrned toward the center line lying along the apices 31a.
  • this sucking and camming action immediately preceding the nip N tends to effect a straightening of the fibers, particularly a straightening of the leading hooks which normally occur in various masses of staple fibers, including carded sliver, roving, etc.
  • the drafted and straightened fibers in the compacted mass are then nipped in sequence in respect to their respective ordered linear position in the fiber group as such fibers successively approach and reach the nip N.
  • the mass of fibers leaving the nip N is twisted by the twisting action of the ring-and-traveler take-up 29 and proceeds in the form of yarn Y or other desired strandular product to the take-up bobbin B. While a twister takeup is disclosed for illustrative purposes, it will be apparent that a non-twist imparting takeup might be employed as desired for the formation and handling of a particular other mass product or intermediate product.
  • the suction action in the vicinity of the nip N tends to reduce the amount of lint -fiy formed as a result of the normally substantial drafting action which takes place between the middle and front pairs of rolls. Also, as an important result of the partial vacuum that exists in the approach areas to the nip N of the rolls the fibers appreaching the nip N do not tend to spread out laterally as they approach the nip as they do in conventional drafting arrangements at high speeds due to the normal positive pressure air pocket and consequent laterally outward air movement in the nip approach region.
  • the partial vacuum in the approach area to the nip N enables the fibers to come into, and maintain, closer lateral relationship under the compacting action exerted thereon by the air stream entering the chevron recesses and the mechanical camming action of the converging trailing walls 310 of the recesses 31.
  • a further advantage lies in the scavenging action which the apertured chevron roll 27 exerts on the adjacent top roll 25 of the front roll pair, thus tending further to reduce any necessity for clearing or cleaning of this top roll 25.
  • FIGURES 6-9 there is shown a modified chevron recess configuration for a chevron roll 127.
  • This is the preferred embodiment of chevron roll according to the invention.
  • the chevron configurations 131 are, as in FIGURES 1-5, formed with their apices lying in a common plane perpendicular to the axis of rotation of the roll and being formed about the entire circumferential periphery of the roll.
  • a portion of the roll surface is shown in FIGURES 6 and 7, the remaining circumferential portion of the circumferential periphery of the roll 127 being readily apparent from this fragmentary illustration.
  • each of the chevron recesses 131 is formed with an air aperture 131a at the apex thereof, this aperture extending through the roll body from the outer circumferential periphery into fluid communication with the inner cylindrical cavity 127a for pneumatic registration with an air suction shoe 35 similarly to the embodiment of FIGURES 1-5.
  • the air communication apertures 131a do not extend over the entire area of the respective chevron recesses 131 as in the first described embodiment of FIGURES 1-5, but are confined to a zone at and adjacent the apices of the respective chevron recesses 131.
  • each of the respective chevron or V-shaped recesses 131 are tapered, preferably in both surface width and depth from a relatively narrow and shallow outer end 131d to a substantially width and deeper apex-adjoining end 131 as seen more particularly in FIGURES 7 and 8.
  • the tapered recess of each leg is formed with a relatively steep angled trailing wall 131g and a more gently inclined leading wall 131i, the upper edge of the trailing wall 131g serving as the major cam surface while the more gentle slope of the leading wall 131i enables the fibers to bend downwardly into the recess 131 for camming action thereagainst by the trailing wall 131g as a function of relative motion of the fibers past the trailing wall.
  • the fiber mass lying over the zone of the tapered chevrons 131 of this embodiment effects in conjunction with the roll surface a plurality of effectively air conduits extending along the converging tapered legs 131b of each of the chevron recesses, which recess conduits connect with their respective apex aperture 131a.
  • the smaller cross section of the outer ends 131d of these recesses 131 will cause a greater air fiow rate therethrough in this zone than in the greater cross sectional zone of the recesses nearer to the apices or center line of the chevrons.
  • the modified chevron roll 127 of FIGURES 6-9 may be employed in the same manner as the chevron roll 27 of FIGURES 1-5, with improved fiber mass compacting action being effected as generally discussed above.
  • Textile fiber handling apparatus comprising a member having an endless peripheral surface on which is formed a zone of undulating general-1y chevron shaped configuration, said member having an internal cavity formed therein, and a plurality of spaced apertures connecting between said cavity and said surface along the apex zone of said chevron shaped surface configuration, and means for connecting said internal cavity to a source of negative fiuid pressure relative to ambient pressure surrounding said member.
  • Textile fiber handling apparatus comprising a roll having a generally chevron shaped series of alternate recesses and ridges formed in its outer circumferential periphery, said rol-l having an internal cavity, at least a portion of said recesses extending through the periphery of said roll and into common fluid connection therethrough with said cavity, and means for connecting said cavity with a source of negative fiuid pressure relative to ambient pressure surrounding said roll.
  • Apparatus according to claim 2 wherein at least a portion of said recesses are V-shaped and have two legs increasing in surface width and depth from its outer end toward its apex end and in fluid communication with said cavity through a bore formed in said roll at the apex of said recess.
  • conduit means extends into said cavity and has an opening adjacent a portion of the circumferential roofing wall of said cavity and in fluid communication with a portion of said recesses.
  • the method of handling a mass of staple fibers comprising advancing said mass in a generally linear fashion and exerting a compacting camming force on said mass by engaging said mass of fibers with a cam surface extending obliquely to the general linear path of movement of said mass and between which mass and cam surface there is relative linear motion along the direction of the general linear path of movement of said mass in the zone of said contact, said cam surface extending obliquely to said general linear path along two converging directions, maintaining the general linear path of movement of said mass in the zone of convergence of said two converging cam surface directions, and exerting a pneumatic compacting force on said mass .of fibers during at least a portion of their contact with said cam surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US93453A 1961-03-06 1961-03-06 Fiber handling arrangement and process Expired - Lifetime US3090081A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL275433D NL275433A (enrdf_load_stackoverflow) 1961-03-06
US93453A US3090081A (en) 1961-03-06 1961-03-06 Fiber handling arrangement and process
CH269262A CH391528A (fr) 1961-03-06 1962-03-05 Procédé de manipulation d'une masse de fibres
BE614695A BE614695A (fr) 1961-03-06 1962-03-05 Appareil de manipulation de fibres.
GB8407/62A GB997572A (en) 1961-03-06 1962-03-05 Fibre handling methods and apparatus
DED38308A DE1178749B (de) 1961-03-06 1962-03-06 Riffelwalze fuer Spinnereimaschinenstreckwerke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93453A US3090081A (en) 1961-03-06 1961-03-06 Fiber handling arrangement and process

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US3090081A true US3090081A (en) 1963-05-21

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US93453A Expired - Lifetime US3090081A (en) 1961-03-06 1961-03-06 Fiber handling arrangement and process

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US (1) US3090081A (enrdf_load_stackoverflow)
BE (1) BE614695A (enrdf_load_stackoverflow)
CH (1) CH391528A (enrdf_load_stackoverflow)
DE (1) DE1178749B (enrdf_load_stackoverflow)
GB (1) GB997572A (enrdf_load_stackoverflow)
NL (1) NL275433A (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270397A (en) * 1963-08-14 1966-09-06 Deering Milliken Res Corp Air drafting arrangement
US3296664A (en) * 1963-08-14 1967-01-10 Deering Milliken Res Corp Air drafting arrangement
US4290170A (en) * 1980-03-27 1981-09-22 Union Carbide Corporation Device for aligning the attenuating fiber mats
US4922701A (en) * 1989-06-30 1990-05-08 The United States Of America As Represented By The Secretary Of Agriculture System for producing yarn
US4953349A (en) * 1988-09-29 1990-09-04 Ernst Fehrer Apparatus for making a yarn
US4976096A (en) * 1989-06-15 1990-12-11 The United States Of America As Represented By The Secretary Of Agriculture System for producing core/wrap yarn
US5600872A (en) * 1993-07-14 1997-02-11 Artzt; Peter Double-belt draw frame
US6073314A (en) * 1998-07-14 2000-06-13 Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh Device for condensing a drafted fiber strand
US6108873A (en) * 1998-03-31 2000-08-29 Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh Arrangement for condensing a drafted fiber strand and method for making yarn therefrom
US6112509A (en) * 1997-03-08 2000-09-05 Inv-Institut Fur Textil-Und Verfahrenstechnik Drafting equipment with small double belts
US6134872A (en) * 1998-12-04 2000-10-24 Zinser Textilmaschinen Gmbh Method of and apparatus for producing a compacted yarn
US6170126B1 (en) * 1998-08-17 2001-01-09 Fritz Stahlecker Transport belt for transporting a fiber strand to be condensed
US6338183B1 (en) * 1999-10-14 2002-01-15 Fritz Stahlecker Arrangement for condensing a fiber strand
DE19637828B4 (de) * 1996-09-17 2005-05-12 Maschinenfabrik Rieter Ag Streckwerk zum Führen eines Vorgarns
CN114717693A (zh) * 2022-05-06 2022-07-08 东华大学 一种均压节能的紧密纺纱装置及其制造方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248521B (de) 1963-02-06 1967-08-24 Saco Lowell Shops Vorrichtung zum Entfernen von Faserflug an Spinnereimaschinen-Streckwerken
AT397671B (de) * 1988-02-15 1994-06-27 Fehrer Ernst Vorrichtung zum zuführen einer verstreckten faserlunte zu einer ringspinnstelle
AT397670B (de) * 1988-02-15 1994-06-27 Fehrer Ernst Vorrichtung zum zuführen einer verstreckten faserlunte zu einer ringspinnstelle
AT395864B (de) * 1988-02-15 1993-03-25 Fehrer Ernst Vorrichtung zum zufuehren einer verstreckten faserlunte zu einer ringspinnstelle
AT397106B (de) * 1988-03-29 1994-02-25 Fehrer Ernst Verfahren und vorrichtung zum zuführen verstreckter faserlunten zu ringspinnstellen
AT397667B (de) * 1988-02-15 1994-06-27 Fehrer Ernst Vorrichtung zum zuführen einer verstreckten faserlunte zu einer ringspinnstelle
CN102965773B (zh) * 2012-12-21 2015-12-02 福建省金泰纺织有限公司 一种光洁纱线的纺纱装置及其用途
CN117071124A (zh) * 2022-05-17 2023-11-17 株式会社丰田自动织机 纺纱机的纤维束集束装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US709694A (en) * 1901-07-23 1902-09-23 Alfred Bietenholz Draw-off or stretching rollers for textile machinery.
US984195A (en) * 1910-02-04 1911-02-14 Joseph Cooper Sliver-funnel for textile machinery.
US1347714A (en) * 1918-01-28 1920-07-27 Butterworth H W & Sons Co Cloth opener, spreader, and guider
US2387091A (en) * 1941-10-30 1945-10-16 Elwin H Rooney Drafting textile fiber
US2430611A (en) * 1945-03-17 1947-11-11 Saco Lowell Shops Drawing mechanism for spinning and roving frames
US2602195A (en) * 1948-04-09 1952-07-08 Liebowitz Benjamin Spinning method and apparatus
US2659936A (en) * 1951-10-23 1953-11-24 Olle E Sandelin Fiber drafting
US2788969A (en) * 1952-01-25 1957-04-16 Armco Steel Corp Apparatus for aligning rigid strip material
US2897549A (en) * 1956-01-06 1959-08-04 Saco Lowell Shops Web condensing apparatus for a carding machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB218169A (en) * 1923-10-09 1924-07-03 Leon William Campbell Improvements in or relating to rollers for drawing frames, spinning frames and like textile machines
FR1033490A (fr) * 1951-03-06 1953-07-10 Procédé d'étirage de fibres textiles et dispositifs en permettant la mise en oeuvre
DE909314C (de) * 1951-08-09 1954-04-15 Wilhelm Heiss Geriffelter Spinnzylinder
FR1059811A (fr) * 1952-01-30 1954-03-29 Thoma & Cie Cylindre transporteur pour fibres textiles ou autres
US2794214A (en) * 1952-04-30 1957-06-04 Warner Swasey Co Revised sping drafter
FR64786E (fr) * 1953-11-09 1955-12-02 Procédé d'étirage de fibres textiles et dispositifs en permettant la mise en oeuvre

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US709694A (en) * 1901-07-23 1902-09-23 Alfred Bietenholz Draw-off or stretching rollers for textile machinery.
US984195A (en) * 1910-02-04 1911-02-14 Joseph Cooper Sliver-funnel for textile machinery.
US1347714A (en) * 1918-01-28 1920-07-27 Butterworth H W & Sons Co Cloth opener, spreader, and guider
US2387091A (en) * 1941-10-30 1945-10-16 Elwin H Rooney Drafting textile fiber
US2430611A (en) * 1945-03-17 1947-11-11 Saco Lowell Shops Drawing mechanism for spinning and roving frames
US2602195A (en) * 1948-04-09 1952-07-08 Liebowitz Benjamin Spinning method and apparatus
US2659936A (en) * 1951-10-23 1953-11-24 Olle E Sandelin Fiber drafting
US2788969A (en) * 1952-01-25 1957-04-16 Armco Steel Corp Apparatus for aligning rigid strip material
US2897549A (en) * 1956-01-06 1959-08-04 Saco Lowell Shops Web condensing apparatus for a carding machine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296664A (en) * 1963-08-14 1967-01-10 Deering Milliken Res Corp Air drafting arrangement
DE1510596B1 (de) * 1963-08-14 1970-03-19 Deering Milliken Res Corp Saugvorrichtung für spinnereimaschinen-streckwerke
US3270397A (en) * 1963-08-14 1966-09-06 Deering Milliken Res Corp Air drafting arrangement
US4290170A (en) * 1980-03-27 1981-09-22 Union Carbide Corporation Device for aligning the attenuating fiber mats
US4953349A (en) * 1988-09-29 1990-09-04 Ernst Fehrer Apparatus for making a yarn
US4976096A (en) * 1989-06-15 1990-12-11 The United States Of America As Represented By The Secretary Of Agriculture System for producing core/wrap yarn
US4922701A (en) * 1989-06-30 1990-05-08 The United States Of America As Represented By The Secretary Of Agriculture System for producing yarn
US5600872A (en) * 1993-07-14 1997-02-11 Artzt; Peter Double-belt draw frame
DE19637828B4 (de) * 1996-09-17 2005-05-12 Maschinenfabrik Rieter Ag Streckwerk zum Führen eines Vorgarns
US6112509A (en) * 1997-03-08 2000-09-05 Inv-Institut Fur Textil-Und Verfahrenstechnik Drafting equipment with small double belts
US6370737B1 (en) 1997-03-08 2002-04-16 Deutsche Institute für Textil-und Faserforschung, Stuttgart Drafting equipment with small double belts
US6263656B1 (en) * 1998-03-31 2001-07-24 Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh Arrangement and method for condensing a drafted fiber strand and method for making yarn therefrom
US6108873A (en) * 1998-03-31 2000-08-29 Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh Arrangement for condensing a drafted fiber strand and method for making yarn therefrom
US6073314A (en) * 1998-07-14 2000-06-13 Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh Device for condensing a drafted fiber strand
US6170126B1 (en) * 1998-08-17 2001-01-09 Fritz Stahlecker Transport belt for transporting a fiber strand to be condensed
US6134872A (en) * 1998-12-04 2000-10-24 Zinser Textilmaschinen Gmbh Method of and apparatus for producing a compacted yarn
US6338183B1 (en) * 1999-10-14 2002-01-15 Fritz Stahlecker Arrangement for condensing a fiber strand
CN114717693A (zh) * 2022-05-06 2022-07-08 东华大学 一种均压节能的紧密纺纱装置及其制造方法
CN114717693B (zh) * 2022-05-06 2023-08-11 东华大学 一种均压节能的紧密纺纱装置及其制造方法

Also Published As

Publication number Publication date
GB997572A (en) 1965-07-07
NL275433A (enrdf_load_stackoverflow) 1900-01-01
CH391528A (fr) 1965-04-30
DE1178749B (de) 1964-09-24
BE614695A (fr) 1962-09-05

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