Патент USA US2114004код для вставки
April 12, 1938. 2,114,004 A._J. REINTHAL KNITTED FABRIC AND METHOD OF PRODUCING SAME Filed NOV. 50, 1956 . 2 Sheets-Sheet 1 na . . INVENTOR. m ATTORNEYS v April 12, 1938. A. J. I‘REINTHAL Filed NOV. 30, 1956 2,1 14,004 - 2 Sheets-Sheet 2 W! “A ~ INVENTOR. , ATTORNEYS. _ Patented Apr. 12, 1938 : 2,114,004 UNITED ‘STATES. PATENT OFFICE ' 2,114,004 Z; ' KNITTED FABRIC AND IVIETHOD 0F PRO ‘ ' DUCING SAME Arthur J. Reinthal, Cleveland Heights, Ohio, as- ' signor to The Bamberger-Reinthal Company, Cleveland, Ohio, a corporation of Ohio Application November 30, 1936, Serial‘ No. 113,369 g _2 Claims. (on. ass-195i lar reference to a fabric having an elastic zone position upon the knitting machine. The differ ence in tension applied to the elastic yarns is preferably appliedin the process of transferring suitable for waistbands, cuffs and the like. the yarns from the cones to the reel.‘ This invention relates to a‘ knitted fabric and method for producing the same, and has particu This may An object of ‘the invention, broadly stated is 1' be done by a snubbing action, as will be brought 5 out hereinafter. The elastic yarns may con to provide a fabric comprised of unit groups of yarns that interloop to form the fabric and with sist of ?laments of rubber spirally wound with one or more yarns of each group being, in one one or more yarns which are not elastic per se zone of said fabric inelastic, and, in another zone, whereby the stretch of the composite elastic yarn is limited. By the term “yarn” as used in the 10 claims is meant either a single thread or a plu elastic, and such fabric being of essentially'uni form thread pattern in both zones, whereby to be produced by the same machine setting as if the entire fabric were of either elastic or inelastic construction. — By the use of the'expression “es ' sentially uniform thread pattern” I do not intend rality thereof running together. ' Other and more limited objects will be in part apparent and in part pointed out hereinafter in connection with the accompanying drawings 15 throughout but only to one in which no non wherein Fig. 1 is ‘a front view of a sweater or like garment having elastic zones at the waist band and cuffs; Fig. 2 is a'fragment of a fabric uniformity of thread pattern is introduced for ' showing the elastic zone stretched to the same - 20 the purpose of producing the elastic zone. In other words, my invention contemplates a fabric in which the thread pattern may vary in different shape as the inelastic zone,v and with both zones ea under tension, as for example, in the portion of _fabric being wound on a receiving roll as it comes to limit myself to the production of a fabric in , which the thread pattern is actually uniform from the knitting machine; Fig. 3 is a similar fragment with the tension relieved; Fig. 4 is a schematic diagram showing one thread pattern 25 25 stitution of elastic yarn for inelastic yarn with out change in the thread pattern for the purpose which may be employed in realizing the inven tion; Fig. 5 is a fragment showing the same of ‘securing elasticity. ‘ v A further object is to produce such fabric by “thread pattern in a less schematic manner, al beaming the warp in unit groups of yarnsvwith though expanded to a degree of openness and the corresponding yarns of each unit being in geometric form not present in the fabric itself; 30 30 and Fig. 6 is a schematic diagram illustrating one group of units elastic and in another group inelastic, the elastic yarns being ‘placedunder a the difference in tensioning which is made use of higher tension in the beaming operation than in the reeling part of the beaming operation. . the inelastic yarns, whereby no change need be Figs. 4 and 5 show, the wales running horizon parts for the production of pleasing effects but in which the elastic zone is produced by the sub 35 made in subsequent operations by reason of the presence of theelastic yarns under high tension‘; thatis, the elastic yarns are fed from the beam at the same rate as the other yarns and the set-up of the knitting machine need be no different in tally. ' _ Referring now to the drawings, the numeral _lll indicates a knitted garment made up of a fabric produced in accordance with the invention and ‘indicating the shape resulting from the incor 40 those cases where a fabric is made with an elastic poration of the invention. vThe garment has zone from those where the entire fabric. is in elastic. While the feature of placing the elastic _yarns under higher tension than the inelastic 011% is'an important feature of the invention, it 45 is nevertheless within the contemplation of the ment may be made from a fabric which comes elastic zones at the waistband as indicated at H and at the cuffs, as indicated at l2. This gar from the knitting machine in a strip of the shape’ indicated in Fig. 2 by reason of being under ten sion and comprising an inelastic zone we and - invention to employ yarns of such elastic nature that they may be subjected to the same tension an elastic zone II3 at the edge. When the ten . in the beaming operation as the inelastic yarns. ‘sion is removed, the elastic zone contracts in and fed from the beam to the knitting machine _ length, as indicated in connection with-the left hand end of the same shown in Fig. 3, wherein 50 2 v _ 50 at the same rate. By the expression "beaming" as herein used, the same numerals indicate corresponding por ' it is intended to include the operations of wind; ~ .55 tions of the fabric shown in Fig. 2. , In the circular type ofknitting machine, where ing yarnslfrom the cones under suitable tension upon a reel and then again winding the yarns‘ the knitting progresses by the intertwining of a from the reel upon a beam which isthen placed in yarn with a preceding run in a ‘direction tiyisa 2 2,1 14,004 versely of the direction of progress of the fabric omitted for cleamess and, in some cases, it may be omitted in the fabric itself, it being used pri- . introduce an elastic yarn or a group of yarns 'marily to limit stretching in a direction trans having one elastic yarn therein by merely pick versely of the progress of the work through the through the machine, it is comparatively easy to ing up a different yarn carrier at the point where knitting machine. the elastic is to be inserted. to Fig. 5 that two types of interlooping are em The tension here It will be seen by reference may be individually regulated for the yarn‘ fed ployed. These form ribs of different types which from each yarn carrier so that the substitution of an elastic yarn under any desired tension for an inelastic yarn is a comparatively simple mat ter. However, where the yarn is supplied from a beam and runs longitudinally of the direction of the progress of the work through a machine, the machine set-ups are comparatively complex and it is highly desirable that the setting of the machine be unaltered for long periods of opera tion. Heretofore, in knitting fabrics having elastic zones on what may be termed the beam alternate and which are indicated by the refer ence characters A and B. Intertwined with the loops of the A type ribs are yarns b which are 10 confined to such ribs. These are elastic in the elastic zone or zones and are inelastic in the in elastic zone. In other words, it is the yams b which may be made either elastic or inelastic whereby to produce a fabric having zones of dif ferent elasticity while maintaining a uniform thread pattern and necessitating no change in the knitting machine. The yarn a may run di type of machine,'an additional thread has been introducedor superadded to the regular thread pattern in the elastic zone. While, this partially solves the problem, it does not do so completely. Also, it involves the use of the regular yarn in addition to the elastic strands, which introduces an item of expense beyond that prevailing where a substitution is made. Indeed, the prevailing agonally back and forth betwcan the A-type ribs, passing over the B-type ribs which tend to great 20 er stretching. This is clearly shown in the dia practice has been to knit the elastic zones sep arately and attach them after.-- the knitting has have been indicated by heavy lines while those in the inelastic zone have been indicated by rela been completed. tively light lines. ‘ V grammatic view in Fig. 4. , In Fig. 5, which shows a very small fragment of the fabric, no attempt has been made to dif ferentiate the elastic from the inelastic yarn. However, in Fig’. 4 the yarns b in the elastic zone _ From the foregoing description and the accom I have found in practice that by introducing a predetermined proper tension during the beam ' panying drawings, it will be clear that I have pro ing operation, I am able to produce a satisfactory vided a knitted fabric ofpsatisfactory and high Product in a cheaper and more desirable manner and to effect a simple substitution of an elastic for an inelastic thread in the same thread pat tern and to knit the fabric with an elastic zone without any change whatsoever in the knitting ' machine. ' In Fig. 6, I have shown one unit group of yarns 40 proceeding from the cones (not shown) to snub bing rods ii, the yarn b, an elastic yarn in the elastic zone of the fabric, passing ?rst around an additional snubbing rod ll, while the yarns a, c'and it pass around only snubbing rod 13. , From the snubbing rods l3, the yarns pass to a yarn guide l5 where they are positioned in suit able relation to each other and from which they pass to a reel l6 upon which. they are wound. ' It is to be understood that the unit group of yarns 50 shown in Fig. 6 is repeated a plurality of times in ?lling a single beam for actual use. It is not necessary to use the snubbing rod ll in the in elastic zone since in that zone the elastic yarn is not used for the yarn b and the extra snubbing 55 would be without utility and in the case of some yarns even undesirable. From the reel l6 the yarns are unwound upon a suitable beam, all yarns being fed at the same rate from the reel IE to the beam. The beam is then placed on the knitting machine and the yarns knitted into ' In Figs. 4 and 5, I have shown a thread pat tern which is an example of the type in which my invention may be realized and wherein, as. y will be clear from the drawings, a unit group of four yarns is employed. ‘ly economical construction and a satisfactory ‘ met'hod of producing the same, and while I have shown and described the illustrative embodiments 85 of the various features, I do not wish to be limit; ed to the details of the disclosure, but only in ac Y cordance with the *appended claims. - the complete fabric. 30 In Fig. 5, yarn a is Having thus .described my invention, what I claim is: . 1. Process of making a knitted fabric com prising beaming a warp composed of unit groups of yarns, corresponding yarns of each unit being in one group of units elastic and in another group inelastic, said elastic yarns being under higher linear strain than the others on the beam, fabricating the‘yams making up both said groups 45 of units in a uniform thread pattern, the corre sponding yarns of each unit being fed from ‘the beam at the same rate- whereby a fabric is pro 50 duced having a compact highly elastic zone and 'a less compact inelastic zone. 2. Process of making a knitted fabric compris ing beaming a warp composed of groups of yarns, one or more yarns of each group being, in one 55 zone of the warp -elastic and in another~ zone ' thereof inelastic, said elastic yarns being Put under higher linear strain than the others 'on the beam, knitting'the yarns of bothezones into an essentially uniform thread pattern, the corre 60 sponding yarns of each unit being fed from the beam at the same rate whereby a fabric is pro duced having a compact, higl1__ly_elastic zone and a less compact and relatively inelastic zone. ARTHUR' J. REIN'I'HAL.