US3204317A - Apparatus for treating tubular knitted fabric - Google Patents

Apparatus for treating tubular knitted fabric Download PDF

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Publication number
US3204317A
US3204317A US258006A US25800663A US3204317A US 3204317 A US3204317 A US 3204317A US 258006 A US258006 A US 258006A US 25800663 A US25800663 A US 25800663A US 3204317 A US3204317 A US 3204317A
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United States
Prior art keywords
wheels
fabric
frame
bars
pairs
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Expired - Lifetime
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US258006A
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English (en)
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Hurt Francis Neil
Association Dennis Reynolds
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HOSIERY AND ALLIED TRADES RES
HOSIERY AND ALLIED TRADES RESEARCH ASSOCIATION
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HOSIERY AND ALLIED TRADES RES
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C5/00—Shaping or stretching of tubular fabrics upon cores or internal frames
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting

Definitions

  • the fabric is stretched widthwise to beyond the width required in relaxed state thereby to cause lengthwise contraction of the fabric to a predetermined lengthwise condition required in the relaxed state, i.e. in respect of the number of courses per inch, and then the fabric is ⁇ shortened widthwise to the width required in relaxed state while maintaining said lengthwise condition.
  • An object of the invention is to provide for the attainment ⁇ of such a lengthwise condition in the fabric that it is substantially free from subsequent laundering shrinkage in this direction, with the option of subsequently subjecting the fabric, or not doing so as desired, to a widthwise reducing treatment to substantially free the fabric from laundering shrinkage in the widthwise direction, bearing in mind that the latter treatment is not essential for underwear but is desirable for outerwear.
  • Another object of the invention is to effect a widthwise stretching of the fabric while maintaining the fabric under substantially lengthwise tensionless conditions.
  • the invention provides apparatus for the shrink resistant treatment of knitted tubular fabric by mechanically stretching the fabric widthwise and contracting it lengthwise, with or without a following operation of maintaining the contracted length and mechanically contracting the fabric widthwise, the apparatus comprising an inner extendible stretcher frame and at least two pairs of outer fabric feeding rollers spaced lengthwise of the frame to provide lengthwise spaced driving locations for the fabric on the frame.
  • the invention also provides apparatus for the shrink resistant treatment of tubular fabric by extending it about a stretcher appliance having longitudinally spaced side edge portions shaped for widthwise stretching of the fabric, said side edge portions having co-operating with them drive members disposed exteriorly of the fabric, these drive members being driven positively for travel of the fabric so that the widthwise stretch is progressive along the fabric, and suitable operating means are provided for the drive members to progressively increase the speed of operation thereof towards the fabric feed end, such that, in the widthwise stretching of the fabric, the drive members allow consequent lengthwise contraction of the fabric with substantially no lengthwise tension therein.
  • the drive members are carried by bars which are relatively adjustable exteriorly of the fabric into attitudes of varying divergence, the stretcher appliance being self expandible to maintain itself co-operating with the drive members in any position ⁇ of the latters adjustment, and suitable means co-relating the drive of the drive members with their widthwise adjustment such that any widthwise adjustment of the drive members is automatically accompanied by appropriate speed adjustment thereof, the adjustment being effected at any time required including while the apparatus is in operation.
  • the nal widthwise spacing may be adjusted automatically as well as manually.
  • said drive members are anged wheels ICC registering with arcuate recesses in outwardly spring biased side stretcher bars ⁇ of the stretcher appliance to 1ocate the latter in position, and the outer side edge portions of said bars between said recesses are generally disposed to converge from the fabric feed end to minimize travel resisting strain on the fabric.
  • Rollers are conveniently provided on the outer side edges of the stretcher bars to minimize friction on the fabric.
  • the flanged wheels are conveniently driven each by a ratchet mechanism and a central comm-on operating member through the intermediary of slotted pawl levers of different lengths for different pairs of the flanged wheels.
  • the ratchet mechanisms are of two-way acting type to give a racking stroke to the flanged wheels by both a push and a pull of the operating member, the latter being hand or power operated.
  • other systemsI such as one involving the use of one-way clutches may be used to translate the reciprocating motion toa one-way motion.
  • FIGURE 1 is a plan view of apparatus for treating tubular fabric according to the invention.
  • FIGURE 2 is an enlarged detail view of a fabric control device in the apparatus.
  • FIGURE 3 is a sectional plan View illustrating tubular fabric being stretched according to the invention.
  • FIGURE 4 is a general perspective view of the complete apparatus.
  • FIGURE 5 is an enlarged perspective view of feed roller mechanism in the apparatus.
  • FIGURE 6 is .an enlarged perspective view -of drive means for the feed roller device.
  • FIGURE 7 is a detailed view :of part of FIGURE 6.
  • FIGURE 8 is an enlarged perspective view of drive connections to a feed wheel in the device.
  • FIGURE 1 comprises a -suitable supporting frame work represented by bars 1 on which there is mounted a reciprocatory oper-ating bar 2 and .a pair of -adjusting screws 3, 4.
  • a knitted tubular fabric web F, FIGURE 3, is passed through the apparatus from left to right and disposed Iwithin. the fabric tube there is a stretcher frame 5.
  • the stretcher frame 5 is composed of spaced stretcher bars 6, 7 having formed in their outer side edges spaced arcuate recesses 8, 9, 10, 8", 9', 10', and two pairs of links 11, 12 and 13, 14 which connect adjacent ends of the stretcher bars 6, 7 to a central bridge piece 15, 16, one at each end; the two bridge pieces are spring biased towards each other by a tension spring 17 which is connected at one end to the bridge piece 15 and is connected at its other end to an adjusting screw 18, the latter being connected to the other bridge piece 16.
  • the end links 11, 12, 13 and 14 extend from -the ends of the stretcher bars 6, 7 outwardly so that the effect of the ⁇ spring 17 biasing the bridge pieces 15, 16 towards each other is to bias the stretcher bars away from each other.
  • outer edge positions 19, 19 of the stretcher bars 6, 7 incline towards the inner edges 19a, 19a' thereof such that in substantially all positions of adjustment said edge positions 19, 19 of the two bars converge towards the wide end of the stretcher frame 5, to provide for unstrained progress of the fabric at these locations.
  • a friction reducing roller 20 At each angular location in the outer edges 19, 19 of the stretcher bars 6, 7 there is a friction reducing roller 20 to minimize friction on the fabric.
  • Each of the aforesaid adjusting screws 3, 4 have turn- 3 ing handles 21, 21a and each of the screws has oppositely screw threaded portions 3a, 3b, 4a, 4b with which there engages screw nut ends 22a, 22h, 23a, 23b of side bars 22, 23 disposed exteriorly of the fabric.
  • side bars 22, 23 rotatably mount spacedwheels 24, 25, 26, 24', 25', 26', in suitable manner to register and co-operate with the arcuate recesses 8, 9, 10,8', 9', 10', respectively, in the stretcher frame 5.
  • Said wheels 24, 25, 26, 24', 25', 26' are each flanged as shown in FIGURE 2, the anges such as 24a, 24b overlapping margins of the stretcher bars thereby to act as supports for the stretcher frame 5. It will be further understood that the stretcher frame 5 is located against ltravel with the fabric, by engagement of the wheels 24, 25, 26, 24', 25', 26' on the bars 22, 23 in the recesses 8, 9, 10, 8', 9', 10' of the stretcher frame 5.
  • the wheels are adapted to be driven all in the same direction for travel of the fabric lengthwise about the stretcher frame 5 by frictional engagement of the wheels with the fabric in the arcuate recesses in the stretcher frame, the wheels if desired having a suitable friction surface applied thereto.
  • each axle such as 24C for wheel 24 in FIGURE 2
  • a link such as 27 which carries a pawl 28 cooperating with a ratchet wheel 29, the latter being secured on said axle 24e of the wheel 24.
  • the links 27 have end slots 27a, FIGURE 1, and are progressively of greater length from left to right in FIG- URE 1.
  • Each pair of links from each pair of opposed wheels are connected together by a pin 30 extending through the respective slots 27a, and three pins 30 are carried by the aforesaid reciprocatory operating bar 2.
  • a quadrant gear lever 27g pivoted at 27b to an anchor plate 27e and having a slot 27d engaged by a peg 27e on the lever 27.
  • a lever 31 mounted -freely on said axle .24e and having -a pawl 31a engaging the ratchet wheel 29 secured on said axle, and on this lever 31 there is a quadrant gear lever 31b pivoted at 31-c to the anchor plate 27C .and having la slot 31d engaged by 4a peg 31e on said lever 31.
  • the operating bar 2 may be automatically operated by suitable drive means, as described below in connection with FIGURE 4.
  • the handles 21', 21a are adjusted to impart t-o the bars 22, 23 a required degree of divergence in the direction of travel of the fabric suitable to impart the desired widthwise stretch to the fabric, it being understood that for any position of adjustment of the bars 22, 23, the stretcher bars 6, 7 continue their association with the wheels by the spring bias of thespring 17.
  • the operating bar 2 is then operated to drive the wheels thereby to traverse the fabric lengthwise, the fabric following a path into and out of the recesses 8, 9, 10, 8', 9', 10'.
  • the pawls 28 which are connected to the links 27 will turn the ratchet wheels 29 which are respectively xed to the wheels in one direction during swinging of the links 27 lin one direction.
  • these pawls will turn the wheels 24, 25, 26 of FIG. 1 in a counterclockwise direction and wheels 24', 25', 26' of FIG. 1 in a clockwise direction so that in this way the fabric will be advanced from the left toward the right in FIG. 1 so as to progress from the narrow end of the frame 5 to the wide end thereof.
  • the pawls 28 will simply ride along the ratchet wheels 29 so that no drive will be transmitted thereto atl this time by the pawls'28.
  • the operating or reciprocating bar 2 reciprocates in a plane which is situated midway between and which extends parallel to the axes of rotation of the several wheels.
  • the several links 27 are connected to the several wheels for respective rotation about the axes thereof, and at the same time these links have pin-and-slot connections with the reciprocatory bar 2 so that in response to reciprocation of the bar 2 the swinging links 27 will rotate the wheels in the manner described above.
  • the effective lengths of the links 27 will also be automatically adjusted because of the movement of the slots 27a relative to the pins 30.
  • the wheels 25 and 25' will be turned through a smaller angle than the wheels 24 and 24 for a given stroke of the bar 2 and the wheels 26 and 26' will be turned through an angle smaller than that through which the wheels 25 and 25" are turned for the same stroke of the bar 2.
  • the pairs of aligned Wheels which are at progressively greater distances from each other necessarily turn through lesser angles in lthe same period of time that the pairs of wheels which are closer to each other turn through larger angles, it follows that those wheelsk that are closer to each other will turn at a higher rate of speed than those wheels which are further apart from each other, and this feature is brought about simply by the automatic adjustment of the effective length of the links 27, as is apparent from the above discussion.
  • the leverage of the different pairs of links is progressively less towards the narrow end of the stretcher frame 5, with the result that the speed of rotation of the wheels is progressively greater towards this end, the arrangement for obtaining a predetermined length condition of the fabric being such that the wheels are adjusted to impart appropriate Widthwise stretch to the fabric, and consequent contraction of the fabric to the wide end of the apparatus is allowed for by the differential speed of the wheels so that substantially no lengthwise tension is imparted to the fabric.
  • This treatment is conveniently carried out under steam or other medium for heating of the fabric.
  • a feature of the apparatus is that by similarly adjusting both the adjusting screws 3 and 4, the apparatus is suitable for various widths of fabric.
  • a further feature of the apparatus is that the adjusting screws 3, 4 can be adjusted at any time, including during operation of the apparatus, to vary the widthwise stretch.
  • a particular use of the apparatus is in treating the fabric to obtain a predetermined lengthwise condition by stretching the fabric to greater width than that eventually required when in relaxed state, as a precedent or otherwise to shortening the width to required relaxed Width while maintaining the relaxed length, for rendering the fabric substantially proof against shrinkage by subsequent laundering.
  • the shortening of the Width may be achieved by steam or heat treatment with or without a width reducer of mechanical form.
  • a further use of the apparatus is as a substantially lengthwise tensionless fabric drive to calendering rollers whose speed of rotation is related to the speed of the final pair of wheels 26, 26 by a fixed train of gears.
  • the calender rollers rotat ⁇ e at a rate dependent upon the output of the fabric from the final wheels 26, 26' so as not to cause any additional stresses on the fabric while it travels between the wheels 26, 26 and the calender rollers.
  • a complete apparatus as shown FIGURE 4 basically consists vof the mechanism as hereinbefore described mounted on a support frame 32 with the following modications.
  • an electric motor 33 which drives, through belt and pulley means 34, an eccentric 3S which is connected by means 36 to a bar 37 which is the equivalent of the aforesaid recprocatory operating bar 2.
  • the bar 37 is supported in end bearings 38, 39 and its reciprocation is effected under power from said motor 33.
  • feed rollers 40, 41 mounted on support frames 42, 43 and having associated steam spray pipes 43', 44 connected to suitable means 45 providing steam under pressure.
  • the feed rollers 40, 41 are interconnected by gears 46, 47 and the latter gear 47 being driven by drive chains 48.
  • the rollers are turnable manually through a one-Way pawl and ratchet mechanism 49 by a hand wheel 50.
  • the upper roller- 40 is vertically adjustable against spring means 51 through bevel gearing 52, and S3 (FIGURE 4) by a hand wheel 54.
  • the driving chains 48 are driven through a sprocket wheel 5S, FIGURE 6, and a bevel pinion 56 which is keyed on a spindle 57 and which is carried by a bracket 58 (FIGURE 6) that is connected pivotally by a pivot 59 to a bracket 60 attached to the side bar 22, FIG- URE 6.
  • the associated quadrants 126, 127 are separated and are interconnected by pinions 63, 64.
  • Ratchet mechanism for converting the reciprocation of the bar 37 to rotation of the wheel 26 conveniently consists of superimposed ratchet wheels 65, 66 having the teeth in the same direction but out of phase, and each ratchet wheel having two pawls at opposite sides as shown for the wheel 25 in FIGURE 8 at 67, 68, 69, 70.
  • This arrangement is such that the reciprocation of the bar 37 results in substantially continuous rotation of the wheels 24-26, it being understood that similar ratchet mechanism is provided for each wheel.
  • a stretcher frame having a pair of stretcher bars inclined away from each other from a narrow end of said frame to a wide end thereof, said frame being adapted to be placed within a tube of fabric which advances along said frame from said narrow end to said wide end thereof, said bars having at least two pairs of aligned outer side edge portions arranged successively along the said bars with one of saidv pairs of aligned side edge portions located nearer to said narrow end of said frame than the other pair of aligned outer side edge portions, said other pair of aligned outer side edge portions having nearer to said narrow end of said frame ends which are spaced apart from each other by a distance greater than any part of said one pair of aligned outer side edge portions and each pair of aligned outer side edge portions of said bars converging toward said wide end of said frame so as to provide for unstrained progress of the fabric along said pairs of aligned outer side edge portions of said bars.
  • said bars have curved concave outer edge portions extending from the trailing ends of said one pair of outer side edge portions which are nearest to said wide end of Said frame to the forward ends of said other pair of outer side edge portions which are nearest to said narrow end of said frame, and a pair of wheels having peripheries and respectively located closely adjacent to said curved outer edge portions of said bars for engaging a tube of fabric in which said frame is located and advancing the latter along said curved outer edge portions of said bars from said one pair of aligned outer side edge portions to said other pair of aligned outer side edge portions.
  • stretcher frame means having a pair of stretcher bars which are inclined away from each other from a narrow end of said stretcher frame means to a wide end thereof, said frame means being adapted to be placed within a tube of fabricA for increasing the width thereof and decreasing the length.
  • a stretcher frame having a pair of stretcher bars inclined away from each other from a narrow end of said frame to a wide end thereof, said frame being adapted to be situated within a tube of fabric for increasing the width thereof and reducing the length thereof as the fabric progresses along said frame from said narrow end to said wide end thereof, a plurality of pairs of aligned wheels between which said frame is located with outer side edges of said stretcher bars located closely adjacent to peripheries of said wheels so that said wheels can engage a fabric and advance the latter along said stretcher bars, said pairs of aligned wheels being progressively spaced at greater lateral distances from each other from said narrow end to said wide end of said frame and said wheels respectively having predetermined axes of rotation which pass through the centers of said wheels, a plurality of links operatively connected to said wheels for swinging movement about said axes of rotation thereof, respectively, the links surrounding the aXes of rotation of each pair of aligned wheels extending toward and crossing over each other in

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US258006A 1962-02-13 1963-02-12 Apparatus for treating tubular knitted fabric Expired - Lifetime US3204317A (en)

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Application Number Priority Date Filing Date Title
GB5435/62A GB1016022A (en) 1962-02-13 1962-02-13 Improvements in the treatment of tubular fabrics

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US3204317A true US3204317A (en) 1965-09-07

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CH (1) CH399394A (fr)
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GB (1) GB1016022A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392430A (en) * 1966-02-14 1968-07-16 David I. Brook Machine for processing tubular goods
US3604079A (en) * 1969-04-03 1971-09-14 Willis W Coates Apparatus for spreading and compacting tubular fabric
US4020790A (en) * 1973-08-04 1977-05-03 Ashimori Kogyo Kabushiki Kaisha Apparatus for forming a coating on a tubular textile jacket
US4622728A (en) * 1982-09-25 1986-11-18 Fleissner Gmbh & Company Method and apparatus for shrinkproofing tubular fabric
US5233734A (en) * 1991-03-14 1993-08-10 Lindauer Dornier Gesellschaft M.B.H. Circular spreader with a locking mechanism for keeping the spreader in a spread condition
US5701641A (en) * 1996-07-22 1997-12-30 Catallo; Frank Spreader for tubular knit fabrics
US20020194713A1 (en) * 2001-06-22 2002-12-26 Newell Window Furnishings, Inc. Method and apparatus for relieving stress in a fabric
US7039991B2 (en) * 2000-04-06 2006-05-09 Scott & Fyfe Limited Vehicle safety device
US11299833B2 (en) * 2017-11-16 2022-04-12 Fab-Con Machinery Development Corporation Torque and skew reduction in tubular knitted fabric

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1139612A (en) * 1914-04-29 1915-05-18 Lucius N Littauer Goods-spreader.
GB203764A (en) * 1922-06-10 1923-09-10 George Hunt Improvements in mechanism for stretching and finishing tubular fabrics
GB212369A (en) * 1923-01-31 1924-03-13 George Hunt Improvements in apparatus for stretching and finishing tubular fabrics
GB242734A (en) * 1924-09-04 1925-11-19 Thomas Geeson Improvements in the finishing of tubular fabrics and in apparatus therefor
US2294642A (en) * 1941-05-20 1942-09-01 American Viscose Corp Apparatus for spreading and stretching fabrics in tubular form
US2583630A (en) * 1949-01-15 1952-01-29 Frank R Redman Apparatus for shrinking and condensing textile fabrics
US3119168A (en) * 1959-12-01 1964-01-28 Fleissner Gmbh Spreading device for tubular materials

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1139612A (en) * 1914-04-29 1915-05-18 Lucius N Littauer Goods-spreader.
GB203764A (en) * 1922-06-10 1923-09-10 George Hunt Improvements in mechanism for stretching and finishing tubular fabrics
GB212369A (en) * 1923-01-31 1924-03-13 George Hunt Improvements in apparatus for stretching and finishing tubular fabrics
GB242734A (en) * 1924-09-04 1925-11-19 Thomas Geeson Improvements in the finishing of tubular fabrics and in apparatus therefor
US2294642A (en) * 1941-05-20 1942-09-01 American Viscose Corp Apparatus for spreading and stretching fabrics in tubular form
US2583630A (en) * 1949-01-15 1952-01-29 Frank R Redman Apparatus for shrinking and condensing textile fabrics
US3119168A (en) * 1959-12-01 1964-01-28 Fleissner Gmbh Spreading device for tubular materials

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392430A (en) * 1966-02-14 1968-07-16 David I. Brook Machine for processing tubular goods
US3604079A (en) * 1969-04-03 1971-09-14 Willis W Coates Apparatus for spreading and compacting tubular fabric
US4020790A (en) * 1973-08-04 1977-05-03 Ashimori Kogyo Kabushiki Kaisha Apparatus for forming a coating on a tubular textile jacket
US4622728A (en) * 1982-09-25 1986-11-18 Fleissner Gmbh & Company Method and apparatus for shrinkproofing tubular fabric
US5233734A (en) * 1991-03-14 1993-08-10 Lindauer Dornier Gesellschaft M.B.H. Circular spreader with a locking mechanism for keeping the spreader in a spread condition
US5701641A (en) * 1996-07-22 1997-12-30 Catallo; Frank Spreader for tubular knit fabrics
US7039991B2 (en) * 2000-04-06 2006-05-09 Scott & Fyfe Limited Vehicle safety device
US20020194713A1 (en) * 2001-06-22 2002-12-26 Newell Window Furnishings, Inc. Method and apparatus for relieving stress in a fabric
US11299833B2 (en) * 2017-11-16 2022-04-12 Fab-Con Machinery Development Corporation Torque and skew reduction in tubular knitted fabric

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Publication number Publication date
DK122898B (da) 1972-04-24
CH399394A (fr) 1965-09-30
GB1016022A (en) 1966-01-05

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