US1759496A - Covered elastic cord - Google Patents

Description

May 20, 1930.

E. WEINTRAUB COVERED ELASTIC CORD Filed July 25, 1929 INVENTOR [PW/4RD WENT/e405 ATT RNEY Patented May 20, 1930 UNITED STATES PATENT OFFICE V EDWARD F BROOKLYN NEW YORIKK COVERED ELAsTr'c c031) Application filed ul 23, 1929. Serial No. 380,442.

The object of this invention is to provide are under tension and while all' of these an elastic cord which is composed of a pluthreads are so held, as above stated, coverrality of elastic threads, each of which is ing threads" Hand 12 are applied in the con- Wound with a protecting thread of cotton, ventional way and preferably oppositely sill: or similar material, and after being so wound, and thereafter the-cord is completed 5 wound, while under tension, a limiting and when the tension is removed, the elastic thread is brought between them, and therethreads 6-6 contract and the thread after protecting threads are wound over all will loosen between the elastic threads, but of them inthe conventional manner, so as in no way interfere with their action or 10 to produce a t'liread of limited elasticity, come in contact with them to an extent suffi- 60 and in which theilimiting thread will not cient to cause it to twist around thesethreads wrap around any of the elastic threads, so or to in any way interfere with their functhateach elastic thread may function true tioning except that it. does limit their stretchand wear true and be protected at all times, ing, as is obvious.

and stretch not beyond a predetermined- In themodification shown in Figure 2, 65 limit. This object produces a thread which threads 13-43 are employed as'covering is cheap, durable and efficient, and better: threads and each of these is single instead of adapted for the purposes of elastic cords than the plurality of cove ing threads 11 and 12.

those heretofore made. Moreover these sing e covering threads are For a more detailed description of my n- Wound with spaced spirals. vention, reference is to be had to the ac'com- In view of the foregoing, the functioning panying drawings, forming a part hereof, of the threads will be readily'understood. in which i .The elastic threads 66 stretch and retract Figure 1 shows my improved cord and according to the tension on them, and they portions of the machine necessary for its are limited in this extension by the limiting 75 manufacture; threads 10 and the threads 10 rest against ,Figure 2 shows a modification thereof; the spirally wound threads 7- -7, but do notv and v interfere with the elastics otherwise than Figures 3,4, and 5 are sectional viewstaken above stated, so that atall times the results on the lines 3-3, 4-4, and 5-5 respectively, are obtained'whic h are abovespecified. 80

looking in the direction of the arrows. Vhile I have shown and described one Throughout the various views of the embodiment of my invention, it is obvious drawings, similar reference characters des that it is not restricted thereto, but that it ignate similar parts. is broad enough to cover all structures that My improved cord 'iscomposed of a plucome within the scope of the annexed claim. 3 rality of elasties 6-6 over each ofv which Having thus described my invention, what is spirally wound in the conventional manner I claim is: with suitable spacing between each convo- A covered elastic cord composed of a plulution and its neighbors, the threads 77' rality of spirally woundielastic threads, aand each of these threads may be of cot on, limiting thread interposed between said elassilk, linen 01' other suitable material. The tie threads, and a, series of oppositely wo'und elastics may be in any suitable cross section, covering threads over the elastic'and limits L although they are preferably square in cross ing threads. section or nearly so, and" after'being wound In testimony whereof, I have hereunto'set with the protecting threads 77, as ab Ve my hand this 23rd day of July, 1929. I stated, they are passed over the rollers 8, and EDWARD WEINTRAUB. then brought near together between the roll- Q! ers 9 and between these threads is placed a limiting thread 10. This thread 10 is placed taut while the elastic threads on each side Y 9

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