US2168869A - Knitting machine - Google Patents

Knitting machine Download PDF

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Publication number
US2168869A
US2168869A US148843A US14884337A US2168869A US 2168869 A US2168869 A US 2168869A US 148843 A US148843 A US 148843A US 14884337 A US14884337 A US 14884337A US 2168869 A US2168869 A US 2168869A
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United States
Prior art keywords
needles
thread
finger
latches
feeding
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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
US148843A
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English (en)
Inventor
Getaz James Louis
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Individual
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Individual
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Publication date
Priority to NL49583D priority Critical patent/NL49583C/xx
Application filed by Individual filed Critical Individual
Priority to US148843A priority patent/US2168869A/en
Priority to GB10155/38A priority patent/GB502292A/en
Priority to FR836906D priority patent/FR836906A/fr
Application granted granted Critical
Publication of US2168869A publication Critical patent/US2168869A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
    • 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
    • D04B1/22—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 specially adapted for knitting goods of particular configuration
    • D04B1/24—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 specially adapted for knitting goods of particular configuration wearing apparel
    • D04B1/26—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 specially adapted for knitting goods of particular configuration wearing apparel stockings
    • 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
    • D04B15/08—Needle latch openers; Brushes
    • 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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/16—Circular knitting machines with independently-movable needles with provision for incorporating internal threads in laid-in fabrics

Definitions

  • This invention is an improvement in knitting machines for forming seamless hosiery made of i plain fabric, and more particularly hosiery having elastic threads incorporated in the fabric along with the inelastic body threads, for example, in the top part of a sock or anklet, or other leg engaging portion, for the purpose of imparting a form fit to the plain fab ic by drawing it together so as to form vertica ridges, and at the same time to provide floatedportions of, the elastic thread forming substantially continuous horizontally disposed'beads to engage the 20' leg and support the stocking or sock on the leg.
  • One of the objects of the invention is to produce a smooth fiat fabric having the appearance of rib fabric, which is accomplished by feeding the elastic thread under tension in front of alternate needles of the circular series below the latches thereof and behind the intervening neetiles, so that when the sock or stocking is removed from the machine, it is contracted by the elastic threads in such manner that the wales 30 are drawn together, alternate wales appearing on the face of the fabric, while intervening wales are drawn to the back of the stool( flat surface, similar to 1 x 1 rib fabric, while as a matter of fact, the fabric is formed by plain knitting.
  • an inelastic thread is fed to the hooks 4.3 of all of the needles by means of one of the feeding fingers located at the throat of the machine, and in order to insure the interlacing ing, giving a pass in front of the elastic thread, all of the hooks from the feeding finger on the throat, before reaching the knitting wave.
  • the latch ring will extend in front of the latches of the alternate needles and preventthem from upward movement even if any of the intervening needles should strike against the elastic thread and raise it, and also hold the elastic thread against the shanks of said alternate needles.
  • the latch ring with a delivery eye extending therethrough and to provide the auxiliary feeding flngr,-which is capable of movement into and out of operative position, with a delivery eye, so located as to register with the delivery'eye in the latch ring'when the auxiliary feeding finger is in operative position, and to feed the elastic thread in as nearly a straight line as possible through these registering eyes in order that the threads shall be delivered to the needles with substantially uniform tension at all times.
  • Fig. 1 is a diagrammatic development of part of the knitting wave and knitting cams of -a circular knitting machine embodying my invention, showing how the two yarns are fed to the needles.
  • Fig. 2 is a plan view corresponding to Fig. 1, showing the needle circle, and illustrating the manner in which the body thread and the elastic thread are fed to the needles, the small arrow indicating the knocking over point.
  • Fig. '3 is a side elevation of the parts indicated in Fig. 2, showing the auxiliary thread feeding finger forthe elastic thread in operative and inoperative positions.
  • Fig. 4 is a vertical section on the line l-4 of Fig. 3.
  • Fig. 4a is an enlarged detail of a portion of the latch ring and two adjacent needles at the moment when the intervening needles are passing in front of the elastic thread.
  • Fig. 5 is a detail view of portions of the latch ring and auxiliary thread feeding finger, the latter being shown in operative position.
  • Fig. 8 is a similar view to Fig. 5, showing the inoperative position of the auxiliary feeding finger.
  • My invention finds its greatest use in carrying out the invention disclosed in my former application, Serial No. 53,824, above referred to, wherein the top portion of a stocking is knit by plain knitting and an elastic thread of rubber, or the well known Lastex, is interlaced with the needles and incorporated in the fabric in the first course to form an elastic selvage, and thereafter in spaced courses throughout a portion of a sock or stocking, to produce a form fitting and self-supporting tubular portion, usually the top of a sock or hose, which has for many year been formed of rib knitting, although it is to be understood that my invention is equally applicable to any other kind of hosiery and may be employed also for the purpose of introducing an inelastic thread, if that should be desirable. make no claim herein for the process or the product disclosed in my said former application, Serial No. 53,824.
  • any circular knitting machine having cylinder needles with selectivity as between successive needles can be adapted to make this sock or stocking.
  • the well known Scott 8; Williams type of revolving needle cylinder machine such as shown for example in the United States Letters Patent to Robert W. Scott, No. 1,152,850, dated September '1, 1915, can be adapted to carry my present invention into effect, by the addition of the mechanism hereinafter described, for feeding the elastic thread and by properly adjusting the various cams.
  • the needle cylinder is indicated at C, and is provided with a circular series of needles, N, the upper ends of which, extending from the point of pivoting of the latch to the hook portion, are inclined forwardly with respect to the shank of the needles.v
  • Such needles can be obtained, and any of the so-called forward hook needles can be advantageously employed for this purpose.
  • Each needle is provided with a I therefore butt, 11., adapted to engage the knitting cams, indicated at 360, 351 and 36l, respectively in the usual manner to effect the drawing of stitches by the hooks of the needles.
  • Selected needles in this case every alternate needle, are provided with a vertically disposed needle jack, indicated at 38I, and these jacks are provided with butts, 72, adapted to engage a selecting cam, 366, located in advance of the throat, for the purpose of raising the alternate needles, which are designated by the number 2!, above the intervening needles, indicated by the numeral 22, at a point before the needles reach the throat.
  • the throat is indicated at 560 in Fig. 2, and is provided with one or more thread feeding fingers, ,f, in the usual manner.
  • L represents a. latch ring, shown in section in Figs. 4 and 4a, which is provided with a delivery eye, i, located in advance of the throat, through which the thread to be interlaced with the needles, and which in this instance is the elastic thread of rubber or Lastex, indicated at 20, may be delivered through the delivery eye of an auxiliary feeding finger, hereinafter described, so as to pass in a line, approximately tangential to the circle of needles, and without sharp'turns, to avoid placing any unnecessary friction on the thread.
  • the delivery eye i, in the latch ring, L, extends through the latch ring angularly to a radius of the ring, and substantially tangential to the circle of the needle series.
  • the thread feeding finger, 30, represents the auxiliary thread feeding finger which is preferably pivotally mounted on some stationary'part of the machine. It is here shown secured by a horizontal pivot, 29, to one side of the throat, 560, but it may be secured at any desired part.
  • the thread feeding finger, 30, is provided at its outer end with a downwardly extending plate portion, 3!, which in its operative position lies against the inner face of the latch ring, L, as shown in Fig. 4, and is provided with a delivery eye, 32, at its lower end, adapted to register with the delivery eye, I, in the latch ring, and form a continuation thereof, so that the auxiliary thread, 20, can pass freely through the registering delivery eyes, I and 32, with an avoidance of sharp turns, as clearly shown in Fig. 2.
  • the auxiliary thread, in this case the elastic thread, 20, will be delivered from the supply spool in such a manner as to pass into the delivery eye of the latch ring in as nearly a straight line longitudinally thereof as practicable, and if found necessary or desirable, the latch ring, or some adjacent portion of the machine, may be provided with a grooved roller, indicated at 33, for this purpose, the thread, 20, passing to the roller as shown in full lines in Fig. 2, or otherwise, as indicated in one or other of the dotted lines, 20a and 2011, according to the direction in which it comes from the spool.
  • the elastic thread passes through a suitable tensioning device, in dicated diagrammatically at T in Fig. 2, of any desired character.
  • the auxiliary thread feeding finger, 30, will be provided with suitable means for automatically throwing it into and out. of operation.
  • it is shown provided with an arm, 34, extending rearwardly of its point of pivoting and connected with a rod or link, 35, operated by suitable cam (not shown) for moving it from the operative position, shown in full lines in Figs. 3 and 5, to the inoperative position, shown in dotted lines in Fig. 3, and in full lines in Fig. 6.
  • the feed finger when. the feed finger is moved to its inoperative position, it will lift the thread, 20, out of a position in which it can be interlaced with the needles, in the manner previously described, and hold it until the auxiliary thread guide, 30, is restored to its operative position.
  • the knitting machine will also preferably be provided with a clamp and cutter of any desired form and operating in any suitable manner for holding the elastic thread when the auxiliary thread guide, 30, is moved to inoperative position, and for severing it after the elastic thread has been fed to all of the courses desired in the stocking which is being knit.
  • a clamp and cutter of any desired form and operating in any suitable manner for holding the elastic thread when the auxiliary thread guide, 30, is moved to inoperative position, and for severing it after the elastic thread has been fed to all of the courses desired in the stocking which is being knit.
  • FIG. 1 for example, sufficiently high to receive needles, 2
  • the latch ring, L is of suflicient depth so that it extends below the latches of the needles, 2
  • the thread guide, f thereof will feed the main knitting thread, or body thread, 40,
  • a stocking may be set up on bare needles and the rubber thread, 30,'
  • a seamless hosiery knitting machine hav-' (ing. a circle of independent needles, a yarn feeding linger in advance of the throat plate, 'means for piacingaltemate needles at different levels at said yarn finger to feed a thread in front of and below-the latches of said alternate needles, and thereafter bringing all the needles to substantially the same level, a latch ring having the portion. between said yarn feeding finger and the throat plate of sufllcient depth to hold down the latches of said alternate needles, to
  • said needles having forwardly extending hook portions to permit the upper ends of the intervening needles to pass in front of' sa d thread when the .needles are brought to substantially the same level and cooperating with needles.
  • a seamless hosiery knitting machine having a circle of independent 'needles, a yarn feeding finger in advance of the throat plate, means for placing alternate needles at different levels at said yarn finger to feed a thread in front of and below the latches of said alternate needles, and thereafter bringing all the needles to substantially the same level, a latch ring having the portion between said yarn feeding finger and the throat plate of sufficient depth to hold down the latches of said alternate needles, and thereby hold the thread fed by said fingers against the shanks of said needles, to insure the passage of the intervening needles in front of said thread to interlace it with the needles, said latch ring being provided with a thread delivery eye in alignment with the delivery eye of the thread finger when in operative position, and means for feeding another thread to the hooks of all the needles.
  • A-seamless hosiery knitting machine having a circle of independent needles, a yarn feeding finger in advance of the throat plate, means for placing alternate needles at different levels at said yarn finger to feed a thread in front of and below the latches of said alternate needles, and thereafter bringing all the needles to substantially the same level, a latch ringhaving the portion between said yarn feeding finger and the throat plate of sufficient depth to hold down the latches of said alternate needles, and thereby hold the thread fed by said fingers against the shanks of said needles, said needles having forwardly extending hook portions cooperating with said latch ring in insuring the passage of said intervening needles in front of said thread and interlacing it with the needles when the needles are brought to substantially the same level, said latch ring being provided with a thread delivery eye in alignment with the delivery eye of the thread finger when in operative position, and means for feeding another thread to the hooks of all the needles.
  • a seamless hosiery knitting machine having a circle of independent needles, a yarn feeding finger in advance of the throat plate, means for placing alternate needles at a different level at said yarn finger to feed a thread in front of and below the latches of said alternate needles, and thereafter bringing all the needles to substantially the same level, each of said needles having a forwardly extending hook portion to place the intervening needles in front of the said thread, and interlacing itwith the needles, a latch ring provided with a thread delivery eye in alignment with the delivery eye of the thread finger when in operative position, and means for feeding another thread to the hooks of all the needles.
  • a seamless hosiery knitting machine having a circle of independent needles, a yarn feeding finger in advance of the throat plate, means for placing. alternate needles at a different level at said yarn finger to feed a thread in front of and below the latches of said alternate needles, and thereafter bringing all the needles to substantially the same level, each of said needles having a forwardly extending hook portion to place the intervening'needles in front of said thread, and interlacing it with the needles, a latch ring provided with a delivery eye, saidfeeding finger being movable and having a terminal portion lying on the inner face of the latch ring and provided with a delivery eye registering with the delivery eye in the latch ring.
  • a seamless hosiery knitting machine having a circle of independent needles, a. yarn feeding finger in advance of the throat plate, means for placing alternate needles at a different level at said yarn finger to feed a thread in front of and below the latches of said alternate needles, and thereafter bringing all the needles to substantially the same level, each of said needles having a forwardly extending hook portion to place the intervening needles in front of said thread, and interlacing it with the needles, a latch ring constructed to prevent the raising of the latches of said alternate needles by upward pressure on said thread and provided with a delivery eye in advance of the throat, said feeding finger being pivotally mounted and having a part provided with a delivery eye lying on the inner face of the latch ring with its delivery eye registering with that in the latch ring when in operative position, means for feeding said thread to the needles in a substantially straight line through said registering apertures, means for moving said finger into and out of operative position, and means for feeding another thread to the hooks of all the needles 7.
  • a seamless hosiery knitting machine having a circle of independent needles, a yarn feeding finger in advance of the throat plate, means for placing alternate needles at a different level from intervening needles at said yarn finger, to feed a thread in front of and below the latches of said alternate needles and thereafter bringing all the needles to substantially the same level, each of said needles having a forwardly extending hook portion to place the intervening needles in front of said thread and interlacing it with the needles, a latch ring provided with a delivery eye in ad- 'vance of the throatextending therethrough in a line substantially tangential to the needle circle, said feeding finger being movable and having a terminal portion lying'on the inner face of the latch ring.
  • a seamless hosiery knitting machine having ing a circle of independent needles, means for placing alternate needles at different levels in advance of the throat plate, a yarn feeding finger in advance of the throat plate located so as to effect the feed of a thread in front of the alter-- nate needles at the higher level only and below the latches thereof, means for effecting relative movement between said alternate needles and the intervening needles to bring all the needles to substantially the same level, a latch ring having portions between said yarn finger and the throat plate in position to prevent the latches of said alternate needles being raised during said relative movement of the needles to the same level, by the frictional engagement of the intervening needles with said thread, and to insure the interlacing of said thread with the needles, and means for feeding another thread to the hooks of all the needles.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US148843A 1937-06-18 1937-06-18 Knitting machine Expired - Lifetime US2168869A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL49583D NL49583C (enrdf_load_stackoverflow) 1937-06-18
US148843A US2168869A (en) 1937-06-18 1937-06-18 Knitting machine
GB10155/38A GB502292A (en) 1937-06-18 1938-04-02 Improvements in hosiery knitting machines
FR836906D FR836906A (fr) 1937-06-18 1938-04-20 Métier perfectionné à tricoter les articles de bonneterie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US148843A US2168869A (en) 1937-06-18 1937-06-18 Knitting machine

Publications (1)

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US2168869A true US2168869A (en) 1939-08-08

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US148843A Expired - Lifetime US2168869A (en) 1937-06-18 1937-06-18 Knitting machine

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US (1) US2168869A (enrdf_load_stackoverflow)
FR (1) FR836906A (enrdf_load_stackoverflow)
GB (1) GB502292A (enrdf_load_stackoverflow)
NL (1) NL49583C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568806A (en) * 1946-07-10 1951-09-25 Western Electric Co Knitting machine
US4633683A (en) * 1980-06-30 1987-01-06 Schmidt Walter R Method for the manufacture of patterned pile fabrics and circular knitting machine therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568806A (en) * 1946-07-10 1951-09-25 Western Electric Co Knitting machine
US4633683A (en) * 1980-06-30 1987-01-06 Schmidt Walter R Method for the manufacture of patterned pile fabrics and circular knitting machine therefor

Also Published As

Publication number Publication date
GB502292A (en) 1939-03-15
FR836906A (fr) 1939-01-30
NL49583C (enrdf_load_stackoverflow)

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