US2374758A - Production of regular goods in flat knitting machines - Google Patents

Description

H. KoRBER '2,374,758

PRODUCTION OF REG'UAR GOODS IN FLAT KNITTING MCHINES May 1, 1945.

'Filed Dec. 8, 1943 2 Sheets-Sheet 2 Paterlted May 1,1945 I I- i I I I I UNITED] 'sTA-Tes PRGDCTIQN' OFREGULAR.l GOODSYIN 'FLAT 4 v i KNI-TTING MACHINES Hans K'Orben' Couve't, Switzerland; assignor 'to o E'douard'f D'ub'ied'` & Cie. Sociti-'Anonyme Ne'uchateLzSwitzerland i Appliication December 8, 1943,SerialfNo. 513,404'

In Germany June 24,71942 3 Claims'. (Cl;` 66-470)`` This invention relates to the production of reg- Figs. 8 to '10" thewayoiproducing narrowed i ular narrowed plain or ribbed goods having been ri'b'bed'ware, and narrowed 'by transfer of .loops by means of the Fig. 11 is a schematio representation of the rows knitting needles and needle bed racking. or shogof loops of narrowed'ribbed'ware. ging' in flat knitting machines. By ti-cklin-g off 'V5l The numeralul(Fig;1)l clesignates the -plain the 'lo'ops it is intended beside's producinglperloops, =thesnumeral 2 in Fig. 8 refers .to'ribbed fectly'fashioned knitware to economize in. knit- Ware'loops,` the numeralV 3 denotes. the' rear ilocko ting yarn; In the known methods' of Droducing cam plate, 4 v`the: frontlock-cam' plate, the: nuregular narroWedplain or ribbed goods in fiat merals` 5 and 'Gdenote'the 'rear and' the front knitting machines the loops to be tickled off Vare transfer. -.1ock--portions respectively, 11' to 25-the transferred from the knitting needles to coverers needles of the rear needlev row,.and. ZlitoL 43 the or' transfer fingers, for the purpose of -beingreneedlesvofthe front 'nee'd-lerovv;` ceived'by the collateral knitting needles upon Forllproducing;plam-.Ware'narrowed at` both rackingof the devices concerned. To this end, edges 'the-mode' of procedure is asfollows:

therefore, extra devices for transferring the 15 Assumingjthat' all the plain loops I (Fig. l:) are needle loops to be tickled off'by means-of coverers hookedztoy the needle hooks of thel rear row of. or fingers are arranged above the knitting needles needles. Prior. to the `transferring pair of. looks in parallel relation to the latter.v7 It is also possi- 3,"4 'moving in: the direction of. the arrow shown ,ble 'to produce narrowed 'plain articles in the in Fig. 2, the front' needle` row-'isracked in a conventional flat knitting machines by transfer- .20 knownV manner to the' right; in' ``COHSevllllenCe ring 'the loops to be tickled 'off to the opposed whereofi,the-'needleslg 21. and l-cometo liein front needle row'in order to -be received by the ODDSed`` relatiOn tO the needles 7' tO 9,'in Such collateral knitting needlesof the rearneedle row manner, that in'the courselof` the movement of after the front needle row has b'een racked. By Athe'transfer lock pair 3-, 4 the'loops held by the this' means the 'tickling off' of one: looplper one needles 1 to ,9 are transfei'red to the needles 28 edge'of the article 'requires the slideF to 'performg to 128, inknown mannerr In' the -COUIYSG Of` the one traverse so that both' article edges thus rei further movement of the transfer lock pair 3,'4 quire the slide to perform two traverses. in the. directionof the arrow .until itzarriv'eszin In the method according to the present inveni the position shown in Fig. 3 the front needle row tion it is required that for obtaining the desired '30 iS again I'aCked tO the right, in Such manner, that result each time before the transferring pair of the needles 36 to 38 come to lie opposite'to the lock portions, in travelling in its direction of y needles 16 to 18, so that the loops on the needles movement, arrives at the next following article IB to I 6 are transferred to the needles 38 to 36 edge the needle 'beds must -be racked one time. as the transfer lock pair 3,` 4 passes by said In this way it is possible to tickle off the 10cm needles. mechanically in'relatively simple manner so that Upon the termination of the traverse of thethe working efliciency is accordingly great, slide from left to right three edge loops of each For the production of narrowed ribbed Ware, of the two Ware edges have thus been transferred advantageously, at the article edge to be narto the front needles, as evident from Fig. 4. rowed only each alternate needle is operated. 40 Asimilar working OperatiOniS Del'fOrmd as, the I The narrowing at both article edges'can lbe carslide traverses from the right to the left hand ried out in such manner that, per slide traverse; Side, aS evident fI'Om FigS. 5 and 6- By this always two racking movements are Derformed, so IneanS the IOODS are tranSfeI'rBd frOm the `frnt I 'that per slide traverse at each article edge nar- 'nedleS tO the rear needles, namely the IOODS rowing (by one loop is effected, even then when lon the needles 36, 31, 38 and 28, 21, 26 to the at the same time several articles are produeed in needles |1, |8, |9 and Ill, 9, 8.respectively. On the machine conJ'ointly. the termination of the slide traverse the needles The accompanying drawings serve for .partly "i and '9 ``Carry tWO` OOmplete 10098 (Fig- '7), illustrating the method according to this inven- Whereas the tWO edge needles T and IG have ibeen tion, only the parts of the flat knitting machine emptied and put out of action, that is, the edge necessary for a proper understanding of the inof the Ware has been narrowed by one loop.` Vention being shown. Prior to the slide beginning to move from left In the dI'aWingSi to right and from right to left, as well as in the Fi'gs. 1 to 7 serve for explaining the production course of each slide movement the front needle of narrowed plain Ware; row is accordingly ra'cked. The knittingfis then continued by means of the rear needles again and the narrowing repeatedin accordance with the pattern anew. This mode of working is continued until the article is given the required narrowed width.

The production of ribbed Ware narrowed on lboth sides is efi'ected as follows':

dle beds always takes place before the transfer lock pair reaches the next following ware edge while travelling in its direction of movement. In the course of the movement of the transfer lock pair from left to' right the loops on the front needles 28, 28, 30,32, 34 and 43, 4|, 39, 3`|, 35 are transferred to the rear needles 1, 9, |3,

| and 25,'23, 2|, |9, I'l respectively. If then the transfer lock pair tmoves from right to left the loops on the rear needles |9, 2|, 23 and I 3, 9, 1 are transferred to the front needles 36, 38, 40, 42 and 33, 3|, 29, 21 respectively (Fig.

,8). Similar Operations also take place, as indicated in Fig. 9, whereby in the course of the slide traverse from left to right the loops on the rear needles 8,/ |0, |2, |4 and 24, 22,v 20, |8 are transferred to the front needles V28, 30, 32, 34 and43, 4|, 39, 3'| respectively. AAs vthe slide traverses from right to left the loops onthe front needles 3'|, 39, 4|, 43 and 34, 32, 30, 28 are transferred to the rear needles |9, 2|, 23, 25 and |5, |3','|| and 9. After the completion of two slide traverses the edge loops of both needle rows have thus each been transferred in the direction towards the middle for one loop division. Each of the needles |5 and' 25 then holds three complete loops, as shown in Fig. 10, whereas the needles 1, 25, |1 and 35 are brought out of action. After the knitting' has been kept up again withV the needlesarranged as shownV in Fig. 10, the mode of procedure described above is repeated in accordance with the pattern; Fig. 11, which is selfexplanatory, shows schematically the rows of loops of the ribbed Ware narrowed on both edges. The numerals entered refer to the needles by which the respective loops have been-,formed Iclaim':v i g z 1. In a method of knitting narrowed selvedged goods, such as plain and ribbed goods in cam slide machines with loop transfer cam portions and relatively longitudinally shiftable fiat bed halves collaterally guiding front and rear knitting needles the steps of shifting the front and rear needles transversely relatively to each other each time and then initiating the transfer of loops between said diifere'ntly arranged needles i in the end portion of traversing movement for lrowed each by one loop.

effecting said transfer at the respective edge of the goods in course of being narrowed.

2. In a method of knitting narrowed selvedged ribbed goods ,in camyslide machines with loop transfer Vcam portions and relatively longitudinally shiftable fiat bed halves collaterally guiding front and rear knitting needles the Steps of shifting the front and rear needles transversely relatively to each other, after each of said shiftings of .the needles initiating the transfer of loops between said differently arranged needles in the end portion of traversing movement for efiecting said transferat the respective edge of the goods in course of being narrowed, and'working at said edge only with alternate collateral needles. i

3. In a method of knitting narrowed' selvedged goods, such as plainand ribbed goods in cam slide machines With loop transfer cam portions and relatively longitudinally shiftable fiat bed halves collaterally guiding front and rear knitting needles the Steps' of shifting the front and rear' needles transversely relatively to each other, and after each of said'shiftings of the needles initiating the transfer o f'loops between said differently arranged needles in each end portion of traversing movement for effecting said transfer at both edges of the goods in course of being nar- HANs KORBER.`

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