US2002414A - Machine for drawing threads from fabrics - Google Patents

Machine for drawing threads from fabrics Download PDF

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Publication number
US2002414A
US2002414A US593349A US59334932A US2002414A US 2002414 A US2002414 A US 2002414A US 593349 A US593349 A US 593349A US 59334932 A US59334932 A US 59334932A US 2002414 A US2002414 A US 2002414A
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US
United States
Prior art keywords
fabric
rollers
threads
machine
feed
Prior art date
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
US593349A
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English (en)
Inventor
Ollendorff Jacques
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.)
Anciens Ets R Cornely & Cie
Anciens R Cornely & Cie Ets
Original Assignee
Anciens Ets R Cornely & Cie
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anciens Ets R Cornely & Cie filed Critical Anciens Ets R Cornely & Cie
Application granted granted Critical
Publication of US2002414A publication Critical patent/US2002414A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B9/00—Hem-stitch sewing machines
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C7/00—Special-purpose or automatic embroidering machines
    • D05C7/10—Special-purpose or automatic embroidering machines for separating and burning-off parts of the base fabric

Definitions

  • the fabric must be kept stretched along a certain length after it has moved past the thread drawing tool, or, otherwise, the threads parallel to the plane of the thread drawing tool and located in the part of the fabric" in which the other threads have already been drawn might sag as low as the line of action of the knife which cuts off the drawn threads, and be also out off thereby.
  • a Y I It is also useful to be capable of accurately adjusting the feed according to each kind of fabric so as to allow the thread drawing tool to passxactly between the threads parallel to its plane.
  • the object of the present invention is to obviate these various drawbacks through an'arrang'ement based upon the following principles and a 5.
  • the feed ofthe fabric is obtained through rollers disposed in strictly parallel relation withrespect to each other and which are given a discontinuous rotary motion, the amplitude or rate of which can be adjusted in a continuous manner, said rollers being partly engaged into the workplate, so asto maintain the fabric stationary before, during and after the action ofthe thread drawing tool.
  • Said rollers have their periphery made of a material which doesnot allow thereon, for instance of india rubber.
  • the fabric is stretched by means of other rollers which are driven together with the feeding rollers, so as not to interferewith the feed. Said stretching rollers are smooth so as to allow the fabric to slide thereon.
  • That increase in length progressively stretches the fabric up to a high tension.
  • All these organs can be combined in such manher as to be carried by a common main support which may be lifted like an ordinary presser foot.
  • Said feeding and stretching arrangement leaves the under face of the table of the machine entirely free, which make it possible to utilize without difficulty any cutter knife system, and in particular a knife adapted to rotate about a vertical axis (that is an axis at right angles to the fabric) without complicating it with a reciprocating vertical motion as described in the U. S. Patent No. 1,895,995 to G. Jalbert, January .31, 1933', for Improvements in machines for drawing the threads of a fabric.
  • I Fig-.- 1 is a front view of the part of the head of the machine which is located above the table, some parts being shown in section;
  • Fig. 2 is an end view partly in section of the same mechanism
  • Fig. 2a is a sectional View on an enlarged scale on the line" 2a2a of Fig. 2.
  • Fig. 3 is a view analogous to Fig. 1, that is a front view, of the presser foot, which serves to bothfeed and stretch the fabric, the work plate and the table of the machine being cut on the:
  • Fig. 4 is a view analogous to Fig. 3, but seen from the back of the machine, the same parts, viz. the work plate and the table of the machine being supposed to be cut;
  • Fig. 5 is a corresponding side view
  • Figs. 12 and 13 are two diagrammatical views of the fabric during the operation of the machine, according as the fabric is well stretched or not, respectively.
  • the fabric feeding devices consist of wheels 23,23"which partly engage a cylindrical groove provided in plate 25 which serves to support the fabric.
  • Said wheels are keyed on the same shaft as feeding wheels 23, 23.
  • the thread cutting organs comprise: On the one hand a cutter knife 28 (Fig. 10), onv the other hand counter-blade 21, which corresponds in shape to the cylindrical part of plate 25, and against which the'cutter knife is applied in order to cut the threads.
  • Feeding wheels 23, 23 and wheels 24,24 are rotated by main shaft i (as shown in Fig.2) through eccentric l keyed on said shaft and actuating through connecting rod 8 sector-shaped lever 9.
  • Said lever 9 drives, through a clutch of the freewheel type, shaft l2, which therefore rotates through a certain angle for each turn of main shaft i.
  • the rotation of shaft 12 is imparted to shaft i5 through helicoidal gears l3 and I l, and shaft l 5 transmits that movement to wheels '23 and 24 (see Figs.
  • sector-shaped lever 9 is provided with a groove in which is engaged the head of a stud 58 extending through a sleeve 58 and the end of which is screw threaded so as to receive a wing nut 66 by means of which it is fixed to lever 9 at a given point thereof.
  • the end of rod 8 is pivoted about said 'sleeve' 59.
  • the peripheries 38,38 of wheels 23, 23', respectively, are preferably made of india-rubber as shown in Figs. '7 to 9 inclusive.
  • the fabric is inserted under rollers 23 and 23 when it reaches line AA (Fig. 11).
  • rollers 23 and 23 are applied against the work plate by the pressure of support as, the fabric cannot slide with respect to said rollers. 7
  • the shape of the smooth wheels or rollers and of the work plate might be different, provided that the combination of their profiles involves a progressive increase of the total length of the sinuous line along which the fabric is stretched in its portion comprised between the feeding rollers, so as to suitably increase the tension of said fabric.
  • a fabric feeding and stretching device comprising in combination, a work plate having a cylindrical shallow groove at right angles to the direction of feed, two parallel rollers coaxially disposed with respect to said cylindrical groove and the peripheries of which are arranged to fit in said groove against the bottom thereof, said peripheries being made of a material upon which the fabric does not slide, and means for imparting a discontinuous feed motion to said rollers, whereby the fabric is tightlyheld between said cylindrical groove and said rollers and caused to move together with said rollers.
  • a fabric feeding and stretching device comprising in combination, a work plate having a cylindrical shallow groove in its upper face at right angles to the direction of feed, two parallel rollers coaxially disposed with respect to said cylindrical groove and the peripheries of which are arranged to fit in said groove against the bottom thereof, said peripheries being made of indiarubber, means for imparting a discontinuous feed motion to said rollers, whereby the fabric is tightly held between said cylindrical groove and said rollers and caused to move together with said rollers, and means, interposed between said rollers, for causing the fabric to assume a sinuous shape in a direction at right angles to the direction of feed, whereby the tension thereof is increased.
  • a fabric feeding and stretching device comprising in combination, a work plate having a cylindrical shallow groove at right angles to the direction of feed, two parallel rollers coaxially disposed with respect to said cylindrical groove and the peripheries of which are arranged to fit in said groove against the bottom thereof, said peripheries being made of a material upon which the fabric does not slide, means for imparting a discontinuous feed motion to said rollers, whereby the fabric is tightly held between said cylindrical groove and said rollers, and caused to move together with said rollers, two arcuate ridges in said grooveat right angles to the axis thereof and close to said rollers respectively, and two smooth rollers parallel with the first mentioned rollers and adapted to cooperate with said ridges for causing the fabric to assume a sinuous shape in a direction at right angles to the direction of feed, whereby the tension thereof is increased.
  • a fabric feeding and stretching device ac cording to claim 3 in which the smooth rollers are adapted to bear against the inner faces of said ridges respectively.
  • a fabric feeding and stretching device in which the smooth rollers are adapted to bear against the inner faces of said ridges respectively, said device further comprising means for imparting to said smooth rollers the same discontinuous feed motion as to the first named rollers.
  • a fabric feeding and stretching device comprising in combination, a work plate having in its upper face a cylindrical shallow groove at right angles to the direction of feed, two parallel rollers having a diameter equal to that of said cylindrical portion of the Work plate, having their common axis parallel to the generatrices of said cylindrical portion, a support for said rollers, means for urging said support in a downward direction so as to press the peripheries of said rollers against said groove, and means for imparting a discontinuous feed motion to said rollers, the periphery of said rollers being made of a material which does not slide on the fabric, whereby the fabric is tightly held between said cylindrical groove and said rollers and caused to move together with said rollers.
  • a fabric feeding and stretching device in which the means for imparting a discontinuous feed motion to said rollers comprise a main shaft, a secondary shaft, a lever pivotally mounted about the axis of said secondary shaft, a clutch for connecting said lever to said secondary shaft for one direction of movement of said lever, means operatively connected to said main shaft for imparting a rocking motion to said lever, and a plurality of gears for transmitting the movement of said secondary shaft to said rollers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Looms (AREA)
US593349A 1931-02-21 1932-02-16 Machine for drawing threads from fabrics Expired - Lifetime US2002414A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR579169X 1931-02-21

Publications (1)

Publication Number Publication Date
US2002414A true US2002414A (en) 1935-05-21

Family

ID=8955902

Family Applications (1)

Application Number Title Priority Date Filing Date
US593349A Expired - Lifetime US2002414A (en) 1931-02-21 1932-02-16 Machine for drawing threads from fabrics

Country Status (4)

Country Link
US (1) US2002414A (fr)
DE (1) DE579169C (fr)
FR (2) FR727763A (fr)
GB (1) GB382838A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003443A (en) * 1958-06-27 1961-10-10 Singer Mfg Co Feeding mechanism for sewing machines
US20080161303A1 (en) * 2006-10-11 2008-07-03 Amgen Inc. Imidazo- and triazolo-pyridine compounds and methods of use thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003443A (en) * 1958-06-27 1961-10-10 Singer Mfg Co Feeding mechanism for sewing machines
US20080161303A1 (en) * 2006-10-11 2008-07-03 Amgen Inc. Imidazo- and triazolo-pyridine compounds and methods of use thereof

Also Published As

Publication number Publication date
GB382838A (en) 1932-11-03
FR42848E (fr) 1933-11-04
FR727763A (fr) 1932-06-24
DE579169C (de) 1933-06-22

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