US1537510A - Method of producing leaflike figure work in braided lace - Google Patents

Description

May 12, 1925. 1,537,510

- E. BOSEBIECK ET AL METHOD OF PRODUCING LEAF L'IifiE FIGURE WORK IN BRAIDED LACE Filed A112. 26 1921 11170)) for; I

Patented May 12, 1925.

UNITED FATiEfilT EMIL eesEBEcK, 01" Bardeen, AND EUGEN Timon, LAN NEAR BARMEN,

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METHOD QF ERODUCIN'G LEAELIKE- EIfi-UBE VZOBK IN BRAIDED LACE.

Application mea- August 26, 1921. Se ial No. 495324.

(GRANTED UNDER THE IPRGVISIONS 01* THE ACT OF MARGH. 3, 1921, 41 STAT. L., 1313.)

To aZZ whom it may concern:

Be it known that we, Earn. Bosnenou and Forum '1 llRCK, both citizens of the German Republic, residing at Barmen, Germany, and Langerfeld, near Barmen, Germany, respectively, have invented certain new and useful Improvements in a Method of Producing Leafiike Figure Work in Braided Lace (for which we have filed applications for patent in Germany, October 29, 1919, Patent No. 341,246; England, October 29, 1920, Patent No. 153,266; France,- November 10, 1920; Belgium, October 26, 1920; Italy, October 27, 1920; Holland, November 9, 1920; Switzerland, November 6, 1920; Spain, October 30, 1920; Austria, February 5, 1921; Poland, February 19, 1921; Czechoslovakia, March 1921), of which the following is a specification.

In the manufacture of braided lace on single thread braiding machines leaf-like figure-work has hitherto been produced as follows: At the particular places, either several longitudinal threads are held together, like the warp threads of a weave, by means of a further thread extending, like a weft thread, in a zigzag line across this part of the fabric, and so forming a weavelike element in the latter, or a tight braidwork is produced around two or more longitudinal holding threads by means of several braiding threads directed to and fro and coming in part from the right and in part from the left. Also two figures of the first described kind have been joined at the ends by braiding their threads together, whereby a real leaf figure does not result but a figure broken away in the middle. All these methods of manufacture require great length of pat-tern strip, so that in the formation of said figure-work the production of the machine is considerably reduced. Moreover with these methods it is very difficult to ob ain an. actual leaf-like form in the figurework since these elements in thefabric are usually too tightly drawn together and thus too narrow in the middle, but towards the ends the gradual narrowing is not obtainec Now the subject matter of our invention is a new method of producing such leaflike figure-work by which method the abovedescribed drawbacks are quite obviated. By this method two or more pairs of special tensioned threads become located in the one leaf on the one side, and in the next leaf on the other side, of the middle pair of threads.

This new method necessitates no special lengthening of the pattern strip so that by employing said method the production of the machine is not diminished. Moreover by this method the figure-work obtains faultless leaf formation, since the lateral pairs of longitudinal threads readily become bowed out in the figures owing to their light tensioning and their change of position between each two figures, and so yield the leaf form. In order to allow these figures to be specially prominent in the lace, the said longitudinal threads may be thicker than the remaining braiding threads, at least if they do not come into use for the formationoof other parts of the web.

The new method is explained by the example of a manner of carrying out same shown in the accompanying drawing, wherein Fig. 1 shows a piece of lace, of about actual size, produced by adopting the method, and

Fig. 2 shows diagrammatically on a larger scale two leaf-like figures produced according to the invention.

According to Fig. 1 the braided lace produced as an inset contains two series a, and Z) of leaf-like figures 0, these series running zig-zag and intercrossing. According to the invention the figure-work is formed by means of three pairs of longitudinal threads (i, (F, 6,6 and f, 7, (Fig. 2) whichpass through the entire series of figures. The pair (Z, (Z always remains in the middle of the figures. The pair (Z, (Z is worked in with a strong tension and these threads d, (l therefore have an approximately straight course in the several figures a. The two other pairs, 6, e and f, P, of threads are disposed. each at one side of the first pair. When the braided work is produced, these two pairs are given a lighter tension and interchange their positions with respect to the middle pair 0?, d at places between the separate figures, the said two pairs being braided with the middle pair and with each other in such manner that at these places the six threads are firmly drawn together. As is specially observable from Fig. 2, between the said places these lateral pairs of threads obtain a bowed-out form, since they are under less tension than the middle pair. In the leaf-like figures the six threads d, (Z 6, c ,1, f are held together in themanner of a weave by means of the threads 9. The

latter are the usual braiding threads of the groundwork and traverse the latter in the diagonal direction. These threads 9 can always be changed and taken just as the character of the groundwork presents them at the particular place.

Obviously the leaf-like figures do not need to be connected directly with one another. They can also be spaced apart in which case the various aforesaid pairs of threads can be used between them for forming other figure-work.

I claim 1. The method of producing leaf-like figure-work in braided lace which comprises forming each leafby braiding together a plurality of longitudinal threads by means of a plurality of groundwork threads'each of which only once crosses each of said lon gitudinal threads and causing the outer longitudinal threads to intercross at either end of the leaf so as to change sides, a leaf like figure being formed as a continuation of the first after the intercrossing of the longitudinal threads.

2. The method of producing leaf-like figure-work in braided lace which comprises forming each leaf by braiding together a plurality of differently tensioned longitudinal threads by means of a plurality of groundwork threads crossing said longitu dinal threads and causing the outer longitudinal threads to intercross at either end of the leaf so as to change sides a leaf like figure being formed as a continuation of the first afterthe intercrossing of the longitu- In testimony whereof, we affiX our signatures in the presence-of two witnesses. EUGEN TURGK. EMIL BosnBEoK.

Witnesses M. SKEINwAsoHER, Or'ro FISCHER.

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