Патент USA US2131231код для вставки
Sept. Z7, 1938. 2,131,231 V. MORRIS MAGHINE FOR AND METHOD 0F MAKING KNITTED ARTICLES Filed Sept, 17, 1935 __ __ __. __ _ __ __ ._ __ _ __ ___ __ __ ___ __ _ ___ _ __ __ __ __ _ _ _ _ __ ___ ____ __ __ ___ _ __ __ __ ___ __ __ __ _ _ ____ ___ _____ __ __ _ __ __ __ _ __ __ ,___ _ ____ __ __ .__ ___î_ __ __Q_ \____ ___ v___/___J __ __ ____ __ __ __ _ _ _ ____ __ __/_ u ß/\_Iîlr|_ \ I_ I\Ñ _\_2 ____/__\__\ \/l l ,_ __ __ _ __ ___ __ __ __ __ __ __ __ __ __ __ _ _ __ __ __ __ __ __ . ___ __ __ __ __ Patented Sept. 27, 1938 ’ . A2,131,231 -UNITED STATES PATENT "o1-‘Fica . l 2,131,231 f MACHINE FOR AND METHOD oF MAKING ' KNITTED ARTICLES ' v ì ` Virgil Morris, Daisy, Tenn., assignor to-Rich ville, Ga., a corpo mond Hosiery Mills, ration of Georgia Application September 17, 1935, Serial No. 40,942 v s claims. (o1. ses-9) My invention relates to knitted articles, and by anincreased supply of elastic material over> more particularly to improvements in knitted socks, stockings, dresses, underwear, and the like, and to the method of weaving, floating, or other _ >5 wise inserting into the knitted article, rubber or “Lastex” thread, or in making rubber or “Lastex” thread a. part of such article by an improved machine. It has been the practice ,in the prior art to use l0 rubber, “Lastex,” elastic or other material which stretches in a knitted article to hold it in place on the body, when such article is being worn. In the case of socks and stockings such lastex, rubber, etc. is made a part of the top in a rib 15 hing machine while the other parts thereof are knitted in the regular .plain knitting machine, then by a separate operation the top is joined to the body of the sock or stocking through what is known as the “loose course” or “transfer line”. 2o Each of these operations »requires additional equipment, added labor, and reduces the output, ' thereby resulting in added expense and increased cost of production, It has been suggested that the tops be elimi 25 nated, and the whole article be made in a single machine where the elastic material may be formed into the article as it is made by such machine. As l such operation comprehends that the elastic will be knitted into the article along with the yarn, it 30 is necessary for the needles of the machine to grab or catch the elastic material in the hooks and form stitches with it in the yarn of the article, and in so doing they cut or otherwise injure it and reduce its useful life. In some cases the elas ' 35 tic material is entirely broken by the hook, with resulting delay and reduction of production. Articles made by the above method will contain elastic material stitched therein about once every A four or five welts of yarn. This permits the forma 40 tion of loops of elastic material extending around the inner circumference or wall of the article and permits the toe nails of the wearer to be caught therein, and- break such material in putting on or removing the article jwith consequentannoy such area. - ' ' Applicant, with a knowledge of these facts, has, as an object of his invention, the overcoming of the above objections and defects by producing an 5 article containing elastic material, which bears a different relation to the knitted yarn of the article, than has been known -by laying or ñoat ing the elastic material into the material of the article by a new and novel process. 10 The method is carried out by using the regular plain knitting machine as it is used to form the other parts of the sock or stocking or‘other gar «ment. It comprehends raising every odd, or every other, needle of said machine (where the ñat top 15 revolving cylinder machine is employed) to such a height that a finger in what is here called the latch rin‘g feeds “Lastex” or rubber thread there to below the latch of said raised needle, where upon each raised needle is lowered and as the 20 normally positioned needles are slightly raised the thread falls behind said normally positioned needles, then yarn is fed to the hooks of all of the needles over the elastic thread, and the nee dies, in their knitting operation of 'drawing the 25 new yarn through the oldloops on their bodies, shed the elastic thread over their tops and such thread is formed into the knitted material by a i‘loat about each stitch of yarn Yin saidy article.This eliminates the necessity for theuse of a 30 ribbing machine and the separate operation of joining the ribbed element to the body of the sock or stocking, with a resulting increased pro- . duction at a reduced cost 'and some saving ofy material. It also prevents cutting of or injuring 35 the elastic material by the hooks of the needles -ordinarily employed to knit the elastic material with the yarn. . ' « The article resulting from this process contains l elastic material of longer life in virtue of being 4o woven or floated into su'ch intimate' relation with the material of the article that it can hardly be_ noticed, and certainly is not subject to severance .or Ibreakage bythe wearer while removing it or putting it into place.A The elastic will also be 45 free to> move with respect to the strands of yarn 45 ance.` These loops of elastic material give an un even contracting of the article about the wearer’s » oi’ the article to remove points of stress, and thus _ body, and an‘unsightly púckering or-bulging into pleats. Such loops also permit of easy breaking ' 50, «when washing the arti-ae. A knit in elastic also lends itself to many other produce a constant and well distributed stretch ing oi' the elastic Ymaterial throughout its length, serving to increase its life. » . l|50 The invention will be clearly understood from ~ disadvantages.` The stitches made with the yarn the following description when read in connec of the article retards or prevents relative move tion with the attache‘d drawing, of which the fig- , ment between the yarn and the elastic material 55 so that localized stress cannot be accommodated ure shows a needle cylinder slit and rolled out .flat with all of its associated elements. f ` J 55 A 2 2,131,231 , . ) Referring to the drawing in detail, the figure shows a cross-sectional view of a portion of a or rubber thread 2 under the latch I1 but over` ñat top revolving cylinder type knitting machine, the heads of the normally positioned needles. All of the needlesthen successively pass to the where a. cylinder is adapted to rotate about a cams b and c where the raised needles are gradu vertical axis,> and having longitudinal grooves formed around-its entire outer circumference into ally forced-downwardly by the cam b and the normally positioned needles are slightly raised by which needles i2 are slidably fitted, and also slid ably seated in every other groove beneath each odd needle is a jack I3 for raising its accompany ing needle. -Each of said needles l2 are bowed (not shown) to provide a friction fit in its groove so that such needle will remain in the position where it is placed or moved without auxiliary sup port, but the jacks are loosely iitted into the 15 grooves and must always be supported by addi tional means when in raised position. the cam c, which engage the lugs- I4 on said _ At the ltop thereof each needle is formed with v a hook ls and just below the hook and to the body of the needle is secured a latch I‘l.` Adjacent the 20 bottom of each needle I2 is formed a lug i4, andl at the bottom of each jack I3 is formed a like lug I5. The purpose of these lugs is to engage cams mounted on the stationary part of the ma chine for raising or lowering such needles or jacks int: manner to `be more clearly described herein af r. d designates what may be called a latch ring employed to prevent the latches I'l on'w the needles from rising and covering the hooks when the needles are in raised or normal position. l 9 desig nates a finger for feeding “Lastex” or rubber » thread to the needles, and I0 designates a finger for feeding yarn for the same purpose. The clipping means for cutting the “Lastex” or yarn at the point where it is no longer desired to feed such yarn or “Lastex” has not been shown as it is standard equipment and acts in its well known ` 40 45 55 needles. By this operation the “Lastex” or rub ber thread previously fed under ’the latches of the raised needles is placed behind the _hooks of 10 the adjacent normally positioned ». needles on their back side away’from the latches. After this the needles move on and al1 are forced downwardly by the action of the~ station ary cam e acting on the lugs i4 as they ride over the surface of such cam, during which operation yarn is fed to the hooks of all of the needles over the “Lastex” or rubber thread by the finger I0. During all of these operations the latches of the needles are maintained in lowered position by cam ring d. ` The needlesthen pass successively to station ary cam f where they are again forced down wardly by the operation of said cam on the lugs Il of the needles as they traverse the surface thereof. As such needles are lowered by cam f they successively clear the cam ring d so that the loops of yarn in this relative movement force the latch members I1 upwardly to place a closure across the hooks and retain the newly fed yarn trapped therein. As the needles are depressed still further by the action of the cam f the \“Lastex” or rubber thread, in the case of the odd needles, slides of! of the closed latch over the head of each of said needles, and in the case of the even needles, the.“Lastex” or rubber thread slides of! of the backs of the needle hooks in and usual way. a designates a stationary Jack leaving each of those needles, and such thread is cam of greater height than that ordinarily em by this action floated or woven into the knitted ployed and acts to raise the jacks through their ‘ article, as the needles in being further depressed lugs I5, and to raise their corresponding needles pass through the old loops of yarn, shed them to a position where the finger 9 may- feed “Lastex” from their body, and pull the new yarn trapped in or rubber thread 2 below the latch on _each of said their hooks through the'old loops along with needles. b designates a stationary cam, shown them thereby forming`a new loop each time a in dotted lines, which acts upon the lugs I4 of the needle reaches the lower extremity of cam f. 45 raised needles to lower them. c designates a The needles then successively pass to stationary stationary cam, dotted in, which acts upon lugs cam g where they are raised by- its action on the Il of the normally positioned needles, that is, lugs I4, as they-ride over it. 'I'he cam g raises the even needles which have no lacks under such needles to their normal position and such them, for slightly raising them. e designates a operation forces the newly formed loop of yarn 50 stationary cam, dotted in, for successively lower I down with the opening latch and over it, onto ing all of the needles when such point has been and around the body of the needle, thus com reached in the revolution, by acting on their lugs pleting a cycle in the operation of the machine, , _ I4. j designates a stationary cam, dotted in, for so that they may again passon for the action of successively lowering the needles still further by the jack cam a. This cycle is repeated again acting on their lugs Il, and g designates a sta and again until the operation is completed. tionary cam, dotted in, for finally restoring eac _ “Ißstex” or rubber thread may be inserted in of the needles to normal position. 'I'he operation ci' the machine and the process of inserting “Lastex” or rubber thread -while making the article is as follows: only a part ofthe circumference of the knitted article by only f g it to a limited number of needles each cycle, and such thread may be laid into only every second.. third, etc. welt of the In the position shown each of the needles I 2 has a loop of ‘yarn I around the body thereof, and needle by the jack cam a instead of every other - the needles are-moving as a part of the revolving Y 65 cylinder II in the direction indicated by the arrows in the ñgure. Beginning at the extreme right it is _seen that every odd needle I2 is being gradually raised by its corresponding jack I2 since in their movement 70 they are riding up the wall of thev stationary jack ‘ cam a,`while the adjacent even needles remain at knitted article by raising every third, fourth, etcgm needle. ' ' While the method here described is presented in .connection with a fiat top revolving cylinder knitting machine, itis not to be considered to be limited thereto. . v ' Having thus described my invention, I claimv 1. The method» of incorporating elastic thread into a knitted article comprising rotating a ring their normal position unaffected by said :lack cam v*of knitting needles', successively raising each of as they ride over it. ~The oddf needles nnally a plurality of' said needles, feeding said thread reach their ultimate height as they successively below vthe latchof each of the raised needles,l pass the point where the finger i feeds “Lastex” successively lowering said raised needles while 9,131,931 3. raising normally positioned needles to place the thread behind said normally positioned needles. cylinder having a circular series of independent lowering each of said needles, feeding yarn to their hooks, and _successively lowering each of said needles still further to knit the yarn and incorporate the elastic thread in the fabric. plurality of said needles, means for feeding said 2. A method of incorporating elastic thread into a knitted article comprising successively raising each of a plurality of needles of a circular needles. cam means for successively raising a thread below the latch of each of the raised needles, cam means for successively lowering each of said raised needles and raising normally positioned needles to place the thread behind said normally positioned needles. cam means. for lowering each of said needles. means for feedingl 10 series. feeding said thread below the latch of yarn to‘their hooks. _and cam means for succes each of the raised needles, successively lowering said raised needles while raising normally posi tioned needles, lowering each of said needles and feeding yarn to their hooks, and successively 15 lowering each of said needles still further to knit _the yarn and incorporate the elastic thread in sively lowering each 'of said needles to knit' the yarn and incorporate the elastic thread in the fabric. 5. A knitting machine for incorporating elastic the fabric. 3. A method of incorporating elastic thread into a knitted article comprising successively raising each _of a plurality of needles of a circular series, feeding said thread below the latch of each of the raised needles, successively lowering said raised needles while raising normally positioned needles, feeding yarn to the hooks of . each of said needles, and successively lowering each of said needles to knit the yarn and incorporate the elastic thread in the fabric. ' 4. A knitting machine for incorporating elastic thread into a knitted article comprising a needle 10 thread into a knittediarticle comprising a needle cylinder having a circular series of independent needles. cam means for successively raising each of a plurality of said needles, means for feeding said thread below the latch of each of the raised needles, cam means for successively lowering 20 each of said raised needles and raising normally positioned needles to place said thread behind said normally positioned need1es,'means for feed ing yarn to the hooks of each of said needles, and cam means for successively lowering each 25 .i oi’ said needles to knit the yarn and incorporate the elastic thread in the fabric. vmnn. MORRIS.