US2538635A

US2538635A - Tool foe producing knitted fabrics

Info

Publication number: US2538635A
Authority: US
Publication date: 1951-01-16
Anticipated expiration: 1968-01-16

Description

Jan. 16, 1951 o WAHLE 2,538,635

TOOL FOR PRODUCING KNITTED FABRICS INCORPORATING WEFT THREADS Original Filed April 8, 1939 1 Fig 1.

INVENTOR. Oiio W012 26 flGE/VIS.

stit hes in the Patented Jan. 16, 1951 'roor. FOR rnonucmo KNITTED memos INCORPORATING WEFT THREADS Otto Wahle. Prague Margaret Just .or .Mar

XI .B hemi -=Moravia;

eta- J ustova ,admini tratrix of said Otto Wa'hle, deceased Original application April' :8, 1939, Serial No.

266,716. Divided and thiS 1941, Serial No. 387,412.

. February 2 1.93.9

appl ca ion April 8, .In Cz hoslovakia Section 3, Public'Law 690, August 8, 1946 Batent expires F ry 24, 19 .9

s cieims. (Cl. 56 7.117)

"This invention relates to improved tools for the knitting of fabrics. The invention is a division of my application iSeria'l Number 266,716, filed April .8, 1939, Patent No. 2,313,305.

With the tools of fabrics of vcommonstructi-ire or pattern may be produced; furthermore those knitted fabrics wher in through each of its row .of stitches. or

throughsomeof thoserows weft threads are incorporated, passing through each single stitch,

remaining perman n ly in the fabric. freein it from stretch in the direction of th ro increasing the fullness of the fabric and givingit theappearance and in some ways also the properties of woven goods.

Thetools of the invention are intended espe- Ms ly for being. used a cording to them hod f the above mentioned application Serial Number 266,716, whereby the incorporating of weft thread is performed by'fixing a weft thread longitudinally eon the knitting tool, forming the single usual manner around the tool and the weft thread attached thereto, freeing the weft thread from the tool after completion of the next row of stitches and then withdrawing the tool from the row.

According to the invention the knitting tools, although fundamentally of the usual shape, are

however constructed in such a way, that 9. weft thread can be firmly held thereon in the direction of their relative movement to the row of stitches. The essential difference between a usual hand knitting needle and a hand knitting needle according to the invention consists only in the fact that the latter possesses two devices for fixing a weft thread, each of the said devices being located near oneof the ends of the needle.

They are designed e. g. in the form of .needle eyelets or clamping slots made in the body of the knitting needle, or in the form of grooves. These fixing devices preferably may be interconnected by a groove or bore extending in the direction of relative movement of the knitting tool to the row of stitches. The weft thread fixed upon the 'tool is lodged in the said groove in such a man ner as not to extend over the surface of the tool and not to hinder the formation of the stitches from the knitting thread by friction. For the purpose of improved fixing of the weft thread along the knitting tool both the fixing devices and their interconnecting groove may be tapered in the direction towards the centre of the tool. 'I am aware that it has been proposed already to insert during the manufacture of a knitted I 2 fa ric --we.f thr d run ing nkn t hrough the r ws f st t h s of the fa ri thereby the tools for inserting the weft threads are thread guides operated additi nally to th pr p r .k itting t ut no kn t n t o s adapt d in the the present invention knitted sense of the invention for the simultaneous knitting and incorporating of the weft threads. I

am also aware that it is known already to equip ;a knitting needle with an eyelet at one of its points only, to attach a cord by means of the said eyelet. o on end of th need e and t p the c rd after the needle i to th last pro uced r w of stitch s o the kn tted fabri rder t hinder the said last row from unravelling whilst the fabric .is fitted to the body of a person. .A needle like this with one eyelet is adapted only a weft thread along the needle nor for forming th stitches around the weft thread fixedon the needle.

In the'accompanying drawing:

Figure 1 is a side elevation of the needle according to the invention provided near each of its ends with an eye-like fixing device I for threading through a weft thread.

Figure 2 is the corresponding top view.

Figure 3 is showing in side elevation a similar needle. The fixing eyelet is located behind the point of the needle and continued as an open groove 2 extending axially, having such a depth that the weft thread when inserted therein is countersunk beneath the surface of the needle, the other end of the groove opening at the rear end of the needle and enabling the inserted weft thread tobe fixed on the needle by simple clamping in the bottom of the groove.

Fig. 4 is the corresponding top view and Fig. 5 is a cross sectional view of the needle according to Figure 3.

According to Fig. 6 the knitting needle is provided adjacent to both its ends with fixing eyelets 3, 4 which are connected by a groove 5, said eyelets and groove tapering in the direction toward the center of the needle in such a manner that the weft thread I0} when threaded through the two eyelets and inserted in the groove, is held therein by clamping action.

Figs. '7 and 8 are a top view and a cross sectional view of the needle according to Fig. 6.

In the needle illustrated in Fig. 9 in side 'ele vation and in Fig. 10 in top View the groove 5 extends to the end of the needle and passes radially over the end face thereof in the form of a tapering fixing slot 6.

By the aid of needles according to the invention and to which weft threads are attached in the manner illustrated for example in Figure 6,'

the knitting operation is performed in the method of the aforementioned applicationSerial Number 266,716, Patent No. 2,313,305, with the result that the finished rows of stitches have weft threads passing through each of their stitches. If desired the needles may be changed for others having a depth of groove such that several or differently coloured weft threads may be inserted simultaneously for the purpose of producing patterned knitted fabrics.

What I claim and desire to secure by Letters Patent of United States is:

1. A knitting needle for producing knitted fabrics with incorporated Weft threads in which means are provided for fastening the weft thread against axial movement relatively to the needle, said means being provided in the body of the needle adjacent both'ends thereof and countersunk into the surface of the needle.

2. A knitting needle for producing knitted fabrics with incorporated weft threads in which a needle eyelet for fastening the weft thread against axial movement relatively to the needle .is provided adjacent each end of the needle.

3; A knitting needle for producing knitted fabrics with incorporated weft threads in which means for fastening the weft thread against axial movement relatively to the needle are provided adjacent both ends of said needle, said means comprising a slot in one of the end faces of the needle.

5. A knitting needle for producing knitted fabrics with incorporated weft threads in which means for fastening the weft thread against axial movement relatively to the needle are provided adjacent both ends of said needle, said means being interconnected by a groove for additionally securing the weft thread against friction caused by the loops sliding along the needle and keeping the weft thread countersunk beneath the surface of the needle.

6. A knitting needle for producing knitted fabrics with incorporated weft threads in which means for fastening the weft thread to the needle against axial movement are provided adjacent both ends of said needle, said means comprising a longitudinal groove and a radial clamping slot arranged in the end face of the needle, the clamping' slot forming a continuation of one end at least of the said longitudinal groove.

7. A knitting needle'for producing knitted fabrics with incorporated weft threads in which needle eyelets for fastening the weft thread to the needle against axial movement are provided adjacent both ends of the needle, said eyelets being tapered towards the centre of the needle.

8. A knitting needle for producing knitted fabrics with incorporated weft threads in which needle eyelets for fastening the weft thread to the needle against axial movement are provided adjacent both ends of the needle, said eyelets being interconnected by a longitudinal groove countersunk below the surface of the needle and the groove being tapered towards the centre axis of the needle.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,490,176 Mason et a1. Apr. 15, 1924