US1568693A - Knit fabric - Google Patents

Description

Jan. s ,1926. 1,568,693

R. ROTHMAN KNIT FABRIC l Filed Dec. 26, 1924 2 Sheets-Sheet l lin. s 1926. y 1,568,693 j R. ROTHMAN v KNIT FABRIC' Filed Deo.` 26, 1924, 2 sheets-sheet 2 )mmmmm @www I @fi/EQ Patented Jan, 5, 1926. i

` y, `Realizar ao'rirrrAN, or BROOKLYN, NEW ironie4 xNIrrannte.

i ``Application led December'26,1924. Serial No. 757,994.

Taal] whom tejen/,Ly 0011.061112:

.Be-it known that I, Ronnn'r Ro'ruMaN.

ak native-of .Russia (who has appliedV for citizenship .ot-the United States), and a 1:5 resident4 :of lBrooklyn, county of Kings, State" of .New York, have invented certain new and usetullmprovements,in Knit Fabrics, of which the following is a, specification. r f

The object of the present invention is to produce a knitfabric-.in which ribs are produced' extending longitudinally. between which plain: or other form of knit fabric is interposed,A yand which ribs will have ya. thickness ysubstantially triple that of-the knit fabric: beyondthe rib, and which ribs will be comparatively narrow and comprise a` continuous Wale'.r l n In the accompanying drawing showing one, embodiment of'- my invention, Figure 1 shows a'y portion of the fabric somewhat enlarged.

Fig.2,is an edgefyiew of the fabric as shown in Fig. 1.

Fig. 3 4is a somewhat diagrammatic view of the'method of knitting with the loops obviously shown in the o pen position.

- Fig. LLisa similarpview with the'loops correspondingr more nearly to the structure o:tFig.1.w` v a This invention l'consists essentially of a knit fabric having atintervals vpreferably remote, a continuous Wale formed of multiplethreads. such as three or more threads, each of which is taken from the single course-thread'fin the fabric on each sidefof such Wale, extending between these enlarged wales. As` shown herein the band of plain or ordinary knit extends between the multi le threadwales, but any desired form oa it may be interposed between these multiple thread Wales, lor might lbe brought 'adjacent'.

of multlple -thread- Wales indicated generally by 4, that-fare. lformed out of three courses of the single-thread, and .indicated byrl, 2 and 3.1- On each' side ofthe multiple ,walefloo are plain loops 5' and 6, each i compose of. .1 az sm lei thread lIt will be seen that the threa s 1, 2 and 3 pass downwardlyr-throughr the .loops 10, 11 and 12 're- `s ctively, as at 7, 8 and 9, and thenpass" t rough ther-mltiple' thread loop 40 formed similarly of three vthreads which three threads then pass upwardly as at 13nd 3.-'of thedrawing I show a series y tainin form loop 4, where they engage two multiple thread loo'ps 14 and `15; thence these three threads pass-downwardly .at 16, and again go through themultiple thread loop 40, passupwardly through the side loops 17, 18. and 19 respectively and continue on` the left as the same three course'threads 1. 2 and 3. It will be seen that the multiple .thread loop 40 is formed in precisely the same manner'by the course threads 21a,

122 and 23, that pass throughvthe similar lower loop 20 and coming upwardly engage the loop portions formed by thc multiple threads 13 and 16 at their Ilower portions. From this arrangement it follows that the multiple4 loops in the wales will Aeach be three times the length of one loop on each side and this Will extend for the 'distance of three side loops. In the same manner four threads mightbe used, or more to form multiple -thread loops that might extend for the distance of four course loops.

The arrangement in Fig. 3 is somewhat theoretical; as in theproduction of this fabric on the usual circular knitting machine Will produce vthe effect las indicated in Fig. 1. The method followed is simply to ta e predetermined needles spaced the same number of needles apart, such asleach y seventh needle, and then arrange thefsinkers or other mechanism, whe1eby"'thesc PATENT. Q'Iyv-pjlyCE1.

needles in two successive-courses of the Wale i This will produce v sion thereon, as well as rthejtwo-"knit off,

and naturally the ladjacent -loop wales-fare drawn upon to `'supply 'the extra thread neededf This will have thel generall eilect of makingthe adjacent wales ou each side of the multiple wales, narrow and contract-y ed, and the intermediate Wale loops will be Wider than the normalloop'intheplain knit, :or onewithout the multiple Wales; as indicated in Fig. 1.v Here the multiple 'Wale other Wale loops vbe'fond the" Wale? loops@ con# the multi -evthread Wales.\*1thas been ound that t 's brinuging to ther the three the m tipleoopsv will make the thickness or rib at these portions three times the normal thickness of the fabric as knitbetween these ribs. This is further assisted by the narrow and tight knit Wales adjoining the multiple Wale on each side, whichv braces the multiple Wale loops and maintains this effect.

By this operation, various artistic effects can be produced, by different designs of the fabric between thel multiple w-ales, such as the ordinary rib formed by reversing the loops alternately, also three different colored threads can be used in the successive courses, and produce loops in the plain courses between the multiple thread Wales in alternate courses, while. each multiple thread loop would have three threads brought together and a contrasting effect would result. Also the three threads in one course might by any one color, and the neXt three threads in a dierent color, that would show the ribs in different. colors in different portions.

Another very benecial result of this fabric is that it osseses exceptional strength lengthwise of t e ribs, and cannot stretch or sag in this direction. Also the lateral sag loops form of a knit Wale, whereby is or stretch is reduced, .because the loops in the Wales are already considerably stretched to produce the multlple thread ribs, and the knit is comparatively tight.

The fabric as shown. in Fig. 4 is substantially as it is `produced in the knitting machine. It is customary to treat such fab.- rics by a cleaning operation which usually employs steam and sometimes soa j or deterge'nts. These operations will ave the effect of causing the ribs adjoining the multiple thread Wale that are tightly drawn to somewhat relax and this operation Will cause wider loops between the rib portion to receive more thread and that will somewhat close up and impart more nearly uniform appearance to the fabric.

What I claim is:

1. In a knit fabric, a Wale of multiple threads in each successive loop, such Wale being interposed between wales, in which each group of three adjacent course threads 'on each side are brought together to forni a series of successive multiple thread loops in the form of a vknit Wale. j

2. In a knit fabric, a Wale in Wlcl1o-tthe successive knit loops are each composed Vof .three threads from three adjacent courses on each side of the-Wale.

3. ia knit fabric, a Wale of multiple threadsgin each successive loop, such Wale bein interposed between plain knit wales, in W 'ch each ou of three adjacent course threads ou eac si e are brought together to form a series of successive multiple thread produced a rib of triple thickness compared with the thickness of the plain knit Wales adjacent this Wale.

4. In a knit fabric, a needle Wale of multiple threads in each successive loop, such Wale being interposed between needle wales in which each group ofqthree adjacent course threads on each side are brought to form a series of successive multiple thread loops in form of a knit Wale, each said multi le thread Wale having the adjacent nee le wales on each side considerably narrower than the multiple Wale, and the needle Wales beyond said narrow Wales being of sub'- stantially the same width as the said multiple thread Wale loops.

5. Ina knit fabric, a needle Wale of multiple threads in each successive loop, such Wale being interposed between plain knit needlewales, in which each group of three adjacent course threads on each side are brought together to form a series of successive multiple thread loops in the form of a knit Wale, each said multiple thread Wale loop havin r the adjacent needle 'Wale loops on each side considerablyv narrower than the multiple Wale loop, and the needle Wale loops beyond said narrow wales being of substantially the same width as the said multiple thread Wale loops.

6. The method of producing a multiple thread Wale in a knit fabric, which consists in holding a thread on axpredet-ermined needle for two successive courses, thereupon knitting these two course threads with also the next and third successive coursethread olf the needle, to knit in the three threads together, in one loop, thereu on repeating the operation for the fourth, fth and sixth courses on the same needle by looping through the said triple thread loop just formed, and knitting olf again on the sixth course, and repeating the operation.

V7. The. method of reducing a multiple thread Wale 'in' a knlt fabric, which consists inholding the' thread on a predeter- 4mined `needleV` for two successive courses,

thereuponknitting these two course threads with alsojjthe 4next and thirdV successive coursethread Voff the needle, toknit in the three threads together, thereu `on), repeating the operation for the fourth, fth and sixth courses -on the same needle byl looping through thel said triple -v thread loop just formed,`andiknitting olf on the sixth course,

the ,first thread that is floated across said predetermined needle beinggiven a certain amount of slack to provideextra thread for the multiple loop..

Signed at New York, N. Y., ony December 23,1924. v

ROBERT-snowman.

Images