US2076910A - Knitted fabric - Google Patents

Knitted fabric Download PDF

Info

Publication number
US2076910A
US2076910A US8149A US814935A US2076910A US 2076910 A US2076910 A US 2076910A US 8149 A US8149 A US 8149A US 814935 A US814935 A US 814935A US 2076910 A US2076910 A US 2076910A
Authority
US
United States
Prior art keywords
stitch
thread
fabric
loops
loop
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
US8149A
Other languages
English (en)
Inventor
Mills Robert Kirkland
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB787733A external-priority patent/GB422779A/en
Priority to GB23832/33A priority Critical patent/GB422801A/en
Priority to US720105A priority patent/US2056686A/en
Priority claimed from US720105A external-priority patent/US2056686A/en
Priority to FR776699D priority patent/FR776699A/fr
Priority to DEH139777D priority patent/DE627711C/de
Application filed by Individual filed Critical Individual
Priority to US8149A priority patent/US2076910A/en
Application granted granted Critical
Publication of US2076910A publication Critical patent/US2076910A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/06—Non-run fabrics or articles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/04—Latch needles

Definitions

  • This invention relates to knitted fabrics and the invention covered by this case is a division of an application filed by the applicant on the 11th day of April 1934 under Serial No. 720,105.
  • the invention refers to ladder-resistant fabric 0 of the type having predetermined of its stitch loops locked or tied by weft thread (thread running weft-wise of the fabric) which does not it self constitute a stitch-forming thread. More particularly the type of fabric to which the invention refers is that which is rendered wholly or in part ladderproof or ladder-resisting by the embodiment therein of locked or tied stitches each comprising a stitch loop having a locking 5 thread (or plurality of threads) extending across said stitch loop and completely encircling each side bar or portion of said loop.
  • This fabric is, by virtue of its ladder-resistant qualities, particularly suitable for ladies stockings, but has, of course, a much wider application.
  • a disadvantage heretofore associated with this type of knitted fabric is that the locking of the stitch loops reduced the normal elasticity of the fabric in a weft-wise direction, i. e. in a direction at right angles to the stitch wales, and also that the major part of the strain on the fabric in a weft-wise direction is taken by the stitchlocking thread.
  • the strength of the fabric has been largely determined by or limited to the strength of the locking thread, and unless exceptionally strong locking thread is employed,
  • the fabric is very liable to split or break under a tension.
  • the main object of the present invention is to provide a locked fabric of the type referred to wherein elasticity in a weft-wise direction is fully maintained and at the same time maintain fully, and in many cases appreciably increase the strength of the fabric (resistance to thread breakage), such result being obtained without exertnumber of successively formed stitches is equal to or preferably greater than the amount or length of thread forming said stitches.
  • the invention provides a fabric of the type referred to which is characterized in that strains on the fabric in a weft-wise direction are imparted in equal or substantially equal proportions to the ordinary stitch thread and the stitch-locking thread.
  • Fig. 1 shows a portion of fabric in accordance with this invention.
  • Fig. 2 shows a modified form of fabric.
  • Figs. 3 to 11 show successive steps in the production of the fabric according to Fig. 1.
  • Fig. 12 shows a sinker employed in producing the fabric.
  • Fig. 13 shows in perspective the co-operation between the needles and sinkers while making locked stitches.
  • Fig. 14 is a development of the needle-operating cams.
  • the needles I have two latches 2, 3 so spaced one below the other on the shank that the lower latch 3 when raised abuts against the end of the upper. latch 2 when the latter is in the lowered position, so that said up- -per latch (which is arranged to abut against and close the hook 4 in the usual manner) may be held open by the lower latch.
  • a sinker 5 For each such plural latch needle there is a sinker 5.
  • neb or nose 9 which has a straight top edge and above and at the rear of this neb 9 there is a part or catch with a vertical edge It, the function of which is to form, divide or measure loops of the locking thread. It is important that the throat I shall be cut deeperinto the sinker .5, that is to say extend further back, thanthe vertical edge if! of the catch so that loops of the locking thread may be sunk by the advance of the sinkers without straining the loops to be locked, which are accommodated in the sinker throats 1.
  • Fig. 3 the needle is moved by the ordinary stitch cams O. C. to a position wherein the old stitch [0 loop a is cleared below the top latch 2 and a thread b is fed into the hook I, the needle being then lowered to knock .over and produce an ordi- I nary stitch b (Fig.
  • the length or size of said stitch b' being determined by the extent to which same is drawn down over the belly or nose portion 8 of the sinker, i. e. by the distance to which the hook 4 passes below the top edge of said portion.
  • the sinkers 5 one of which is shown
  • the needle is then operated I upon by the locked stitch cams L. C. and is first raised thereby from the normal lowered position until the previously formed stitch loop b is brought on to the raised bottom latch it to the position shown in Fig. 5.
  • the top latch 2 is, of course, swung down and its end therefore overlies the end of the raised bottom latch 3.
  • the needle is then lowered somewhat so that the said loop b (which is to be locked) passes underneaththe top latch 2 to the position shown in Fig. 6; and next the needle is raised to clear the loop down below the bottom latch 3, by which movement the said boting thread 0 is engaged and drawn by the vertical edges l0 thereof.
  • the needle is then lowered 5 by thestitch cam, during which movement the stitch loop b which is to be locked causes the bottomlatch 8 to swing up and to hold the top latch 2 in its lowered position so that the loop of the locking thread c on the needle is enclosed 0 between the two latches; (Fig. 8) As the sinker loop of the locking thread is held by the angular recess in the sinker neb 9, continued downward movement of the needle draws the loop 0 through the previously formed loop b, which latter passes 5 up over the top latch 2 (Fig. 9) with the result that the said top latch is swung up by the loop c of the locking thread, (Fig. 10) the sinker meanwhile'being retracted.
  • each of the loops of locking thread 0 extends when the fabric is relaxed in a curve or loop of substantial length or curvature from thread bar to thread bar of locked loops b, both across the loops and across the wales between said loops, as shown in Fig. 1, so that such loops incorporate a sufficient length of thread to permit of the fabric stretching'in a normal manner.
  • the additional draw imparted to the sinker loops of the locking thread these loops are somewhat longer or more pronounced in the finished fabric than the locldng thread stitch loops; this effect being clearly shown in Fig. 1 where 0 indicates the longer sinker loops and w the shorter stitch loops.
  • the 'relaxa tion of the thread 0 so-that same does not receive the full force of imparted tension permits the employment of a locking thread'which is appreciably finer or thinner than the ordinary stitch thread b without in any way weakening the fabric, 1. e. without reducing its tensile strength; in fact even with a comparatively thin locking thread, the strength of the fabric is increased as compared with ordinary (unlocked) knitted fabric which is knitted with yarn of the same count as the ordinary stitch thread I) of a locked fabric.
  • the set of ordinary stitch cams O. C. and'the locking stitch cams L. C. and also the sinker cams operating in conjunction therewith are advantageously so designed that during the thread draw, the sinkers co-operating with a,small group of adjacent needles, e. g. five needles, are mainon the needles, thereby also rendering more uniform than heretofore'the distribution of the'two -threads over the needles in knitting a complete course.
  • this dwell in the needles and sinkers-is provided substantially midway in the downward or thread-drawing movement of the needles.
  • FIG. 13 is shown the 'tained fully advanced and said group'of needles I 2,070,910 operation of the needles and sinkers at the locklng thread feed, and the broken line it illustrates the track traversed by the needles over the looking stitch cams during the thread-drawing operation, the position of the dwell being shown at d.
  • sinkers are employed of the type shown in Fig. 12 having a flat topped nose portion 8, it may not be required to provide a specially shaped sinker'cam with a short straight portion for producing the dwell and maintaining a group of adjacent sinkers advanced to a uniform extent during the operation of drawing over said noses the ordinary stitch thread so long as the needleoperating cam is designed to maintain the needle group at a uniform height, 1. e. fully lowered,
  • the sinker cam will be provided with a short straight portion to obtain the required dwell.
  • Chenille or-pile fabric can also be readily made by lengthening the locking thread loops to'an extent suficlent to produce a pile.
  • One method of doing this is by lengthening or deepening the throat I in the sinkers 5 and advancing said sinkers to an increased degree; and if desired the edge III of the neb 9 controlling the locking thread sition on the sinkers.
  • the ratio of the ordinary stitch thread to the locking stitch thread is advantageously 37 to 38; in other words, 37 inches of pure silk yarn is fed at the ordinary stitch feeder and 38 inches of similar yarn at the locking stitch feeder in each stitch course irrespective of the diameter or count of yarn.
  • Non-ladder or ladder-resistant knitted fabric having predetermined of its stitch loops locked or tied by weft thread which is coiled completely round each side bar or leg of a stitch loop and extendsacross same but does not itself constitute a stitch-forming thread and wherein the amount or length of stitch-locking thread associated with any given number of successively formed stitches is at least equal to and preferably greater than the amount or length of thread forming said stitches.
  • Non-ladder or ladder-resistant knitted'fabric according to claim 1 wherein the size or length locked thereby-varies.
  • Non-ladder or. ladder-resistant knitted fabric according to claim 1 wherein the size or length of the stitch-locking loops and of the stitch loops locked thereby gradually and progressively varies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)
US8149A 1933-04-18 1935-02-25 Knitted fabric Expired - Lifetime US2076910A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB23832/33A GB422801A (en) 1933-04-18 1933-08-28 Improvements in knitting machines and articles produced thereon
US720105A US2056686A (en) 1933-04-18 1934-04-11 Production of knitted fabric
FR776699D FR776699A (fr) 1933-04-18 1934-04-18 Perfectionnements aux tricots et aux métiers servant à les fabriquer
DEH139777D DE627711C (de) 1933-04-18 1934-04-19 Laufmaschensichere Strickware mit Riegelmaschen sowie Verfahren und Strickmaschine zu ihrer Herstellung
US8149A US2076910A (en) 1933-04-18 1935-02-25 Knitted fabric

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB787733A GB422779A (en) 1933-04-18 1933-04-18 Improvements in knitted fabric and in the means for and method of producing same
US720105A US2056686A (en) 1933-04-18 1934-04-11 Production of knitted fabric
US8149A US2076910A (en) 1933-04-18 1935-02-25 Knitted fabric

Publications (1)

Publication Number Publication Date
US2076910A true US2076910A (en) 1937-04-13

Family

ID=31998557

Family Applications (1)

Application Number Title Priority Date Filing Date
US8149A Expired - Lifetime US2076910A (en) 1933-04-18 1935-02-25 Knitted fabric

Country Status (4)

Country Link
US (1) US2076910A (fr)
DE (1) DE627711C (fr)
FR (1) FR776699A (fr)
GB (1) GB422801A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429796A (en) * 1943-04-15 1947-10-28 Interlock Patents Ltd Rib knitting machine and method of knitting thereon
US3309899A (en) * 1963-01-21 1967-03-21 Naigai Amimono Ltd Co Machine for and method of knitting run-resistant fabric
CN108265381A (zh) * 2018-03-07 2018-07-10 石狮市宝翔针织机械有限公司 一种电脑提花圆纬机及其添纱提花工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032693A1 (de) * 1970-07-02 1972-01-13 Fouquet Werk Frauz & Planck, 7407 Rottenburg Verfahren zur mustergemaßen Nadelauswahl fur die Herstellung von Jacquardmustern auf mehrsystemigen Rundstrickmaschinen und mehrsystemige Rundstrickmaschine zur Durchfuhrung d'eses Verfahrens
CN105483926B (zh) * 2016-01-22 2017-11-24 新昌县振兴纺织机械有限公司 单针筒全电脑织袜机哈夫盘及喂纱器座垂直升降结构
CN114438652B (zh) * 2022-01-29 2024-05-07 常州零一自动化有限公司 一种多工位编织机的编织方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429796A (en) * 1943-04-15 1947-10-28 Interlock Patents Ltd Rib knitting machine and method of knitting thereon
US3309899A (en) * 1963-01-21 1967-03-21 Naigai Amimono Ltd Co Machine for and method of knitting run-resistant fabric
CN108265381A (zh) * 2018-03-07 2018-07-10 石狮市宝翔针织机械有限公司 一种电脑提花圆纬机及其添纱提花工艺
CN108265381B (zh) * 2018-03-07 2019-07-12 石狮市宝翔针织机械有限公司 一种电脑提花圆纬机及其添纱提花工艺

Also Published As

Publication number Publication date
DE627711C (de) 1936-03-23
FR776699A (fr) 1935-01-31
GB422801A (en) 1935-01-18

Similar Documents

Publication Publication Date Title
US2080377A (en) Circular knitting machine
US4043151A (en) Method of producing pile or plush goods on double-bed circular knitting machines by means of plush hooks
US2076910A (en) Knitted fabric
US2236758A (en) Elastic fabric
US2056686A (en) Production of knitted fabric
US2054217A (en) Method of knitting
US2000176A (en) Run resistant fabric
US2082751A (en) Mechanism and process for effecting reverse plating
US2333870A (en) Method of knitting
US2115929A (en) Knitting machine and method of knitting
US2296590A (en) Method of widening on flat knitting machines employing auxiliary yarn
US2164289A (en) Knitted fabric
US2132778A (en) Knitted fabric and the production thereof
US1961636A (en) Method of knitting multithread fabric
US2057375A (en) Knitted fabric and method for making the same
US2598144A (en) Elastic top for hosiery
US2987900A (en) Circular knit stockings
US1965873A (en) Knitted article
US3106830A (en) Run resistant fabric
US2251531A (en) Hosiery
US2042582A (en) Weltless, full-fashioned hosiery and method of manufacture therefor
US2073487A (en) Stocking and method of making the same
US2429796A (en) Rib knitting machine and method of knitting thereon
US2165520A (en) Nonrun hosiery
US2105987A (en) Knitted fabric