US1588180A - Elastic material - Google Patents

Description

June 8 1926.

W. H. FROST ELASTIC MATERIAL Filed Nov. l8 1925 2 Sheets-Sheet 1 gvmmmtoz June 8,1926. v 1,58%;180 r W. H, FROST ELASTIC MATERIAL Filed Nov. 18, 1 925 2 Sheets-Sheet 2 Patented June 8, 1926.

UNITED STATES,

1,588,180 PA-TENT OFFICE.

WARREN H. FROST, 0]! LONG BEACH, CALIFORNIA.

' ELASTIC MATERIAL.

' Application filed November This invention relates to elastic materials and more particularly to an elastic materialformed in part by coil springs.

An important object of this invention is to' provide a construction in which, while some of the threads of-the fabric lie transversely to and upon the springs, said threads will not enter between adjacent coils of the springs and interfere with the contraction of said springs. This object is at tained by the use of transverse threads or cords of a greater diameter or width than the spacing between adjacent coils when the springs are extended to the limit set for t em. The limit of extension of the springs is determined by the length of a longitu- 4 the springs.

- dinally extending thread or cord.

The longitudinally extending cord may consist of a single thread or of several fine threads twisted together or may consist of relatively narrow tape or other flat strips of fabric or other suitable flexible material. The term cord used in this specification may define narrow strips of leather or leather substitutes or the like as well as cotton or silk. Rubber cords may also be used for covering the springs, though such construction is not so advisable because of the rapid deterioration of rubber.

The invention may be embodied in one form in which coil springs have their ends connected together by cords. The springs may be arranged in a single longitudinally extending series or there may be a plurality of such series lying side by side. When the material is'to be employed for the manufacture-of corsets, for example, as many'as a hundred series oi springs and their connecting cords'may be employed. The series of springs with their connecting cords,

tapes or other connecting members may con- 18, 1925. -Serial No. 69,805.

The accompanying drawings illustrate the invention."

Figure 1 is .a broken'plan view of a piece of elastic material constructed in accordance with the provisions of this invention.

Figure 2 is a transverse section on the line indicated by 22, Figure 1.

Figure 3 is an enlarged broken longituv dinal section on the line indicated by 3-3, Figure 1.

Figure 4 is a greatly enlarged "broken longitudinal section on the line indicated by i 1, Figure 1.

Figure 5 is an exaggerated perspective view to illustrate the weaving.

Figure 6 is'a plan view of a fragment of elastic material embodying the invention in a modified form.

Figure 7 is an enlarged fragmental longitudinal-section on the line indicated by 7-7, Figure 6.

Figure 8 is an enlarged transverse section on the line indicated by 8--8, Figure 6.

Figure 9. is an enlarged transverse section on the line indicated by 9-9, Figure 6. F igure 10 is an exaggerated perspective View to illustrate the weaving in Fig. 6.'

Figure 11 is an exaggerated perspective view to illustrate the. weaving of a third modification of the invention. Figure 12 is an exaggerated perspective View to illustrate the weaving of a fourth modification of the invention.

First referring to the form of the invention disclosed in Figures 1 to -5 inclusive, there is provided any desired number, one or. more, coil springs 16 and these springs are suitably connected at their oppositeends to anchor pieces 17 formed by strips of fabric or other suitable flexible material. In this instance the opposite ends of the springs 16 are provided with eyes 18 and these eyes are secured by stitching 19 to the anchor pieces-17.

Parallel to the springs 16, between adjacent springs is a longitudinal extending thread, threads, cord or cords 20 which may be formed of any flexible material such, for

example, as cotton, silk, leather, leather substitutes, or wire. In the instance' shown in Figure 1, thereare three cords 20 between each two adjacent springs. The opposite ends of the cords 20 are secured to the anch01 pieces 17 in an suitable manner. In this instance, the en s of the cords 20 are coils will take place.

sewed through the anchor'pieces, as clearly shown in Figure 3. The cords 20 are of sufficiently greater length than the springs 16,'when said s rings are contracted, so that said cords wil be slack at such times, as shown to an exaggerated degreein Figure 3. The cords 20 are, however, of no greater length than necessary to permitof expansion or extension. of the springs less than.

that at which permanent set o the spring The springs 16 and cords 20 constitute the warp of the fabric and said fabric also comprises filler threads 21 which are interwoven with the springs 16- and cords 20. The filler threads 21 form a sheath for the springs.

, It is to be particularly noted that the diaiheter or width of the threads 21 is greater than the spacebetween adjacent coils of the springs when said springs are extended to as great a length as the cords 20 Wlll permit and thus the threads 21 cannot drop betion' of the invention therein disclosed, the

elements that correspond in function to those described above will be indicated by the same reference characters with the addition ofthe letter a. In this instance, the springs 16 are arranged in a longitudinal series or plurality of series, the springs of each series being connected with one another by a cord or cords 221. .The diameter of the cord 221 or combined diameters of I the cords 221, when. several are used, is approximately the same as that of the spring 16, and some of the filler threads 21, in

this instance, pass over and under the cords 221 the same as others of the filler threads pass over and under the springs 16, thus to give substantially the same appearance tween adjacent coils of the springs when The cords 20 being interwoven with the filler threads thus anchors the cords 20 at of the fabric from end to end thereof.

intervals therealong so that when the material is cut into lengths said cords 20 will remain anchored.

Now referring to the modification illustrated in Fig. 11, the elements that correspond in function to those described for Figs. 1 to 5 will be indicated by the same reference characters, with the addition of the letter b. In this instance the structure is similar tothat illustrated in Figs. 6 to 10 exceptingthat the spring-connecting cords 221", Wl'llCh corres 0nd to the cords 221, are interwoven with t e filler threads the same as are the longitudinal or warp threads 20"- members of greater width than t that limit extension of the springs. In other words, during the weaving operation, the filler threads are passed between the cords 221 Thus between .each two adjacent sets of springs 16 is'a woven fabric, of which the longitudinal or warp threads are indicated at'20", 221 and the filler threads at 21.

\ Now referring to the modification of the invention illustrated in Fig. 12, the elements I that function the same as those described in Figs. 1 to 5 are indicated by the same reference characters with the addition of the letter 0. It will be noted that the warp members 20, in this instance, are formed of-relatively wide tapes, cords or strips of material of rectangular cross section, there being a strip interposed between each two longitudinally extending series springs 16. These warp members 20 are interwoven with the fillerthreads 21' in the same manner as described for the warp threads 20 and filler threads 21. The advantage of using the strips 20 in lieu of the threads or cords 20 of circular cross section is that said strips will more satisfactorily overcome the tendency of the extended springs of the different series from drawing together into a narrower band. This tendency is greater when the cords are of circular cross section as said cords may rbll upon one another.

I claim: a

1. An elastic material comprising a coil spring, means to limit extension of the spring, and a flexible sheath enclosing said spring and having transversely extending tween adjacent coils of the sprin s when the springs are extended to the limit determine by said means.

2. An elastic material comprising a coil spring, anchor pieces secured to the op 0- site ends of said spring, a flexible mem er secured at its opposite ends to the anchor pieces, said memberbei-ng slack when the spring is contracted, and transversely extending flexible members covering the of the spaces bespring of greater width than the spaces bethe anchor pieces are separated to the limit determined by the first mentioned member.

' 3. An elastic material comprising a. plurality of coil springs positioned lengthwise of each other, a flexible member extending between the springs and anchored at its ends, and transversely extending flexible.

gitudinal series of coil springs, a flexible member between each two adjacentsprmgs secured at its opposite ends to said springs,

.limit determined by said means.

5. An elastic material comprising a longitudinal series of coil springs, a plurality of flexible members between each two adjacent springs secured at their opposite ends to said springs, means to limit extension of the springs, and a flexible sheath enclosing the springs and flexible members and having transversely extending members of greater width than the s aces between adjacent coils of the springs w en the springs are extended to the limit determined by said means, the transverse members being interwoven with the first mentioned members.

(3. An elastic material comprising a plurality o't' longitudinalseries of coil springs, a flexible member between each two adjacent springs of each series secured at its 'oppositeends to said springs, a flexible member extending between each two adja cent series of springs andanchored at its ends, and a flexible sheath enclosing the springs and flexible members and having transversely extending members of greater width than the spaces between adjacent coils of the springs when the springs are extended to the limit determined by the second mentioned member, the transverse members being interwoven with the first and second mentioned members.

7. An elastic material, comprising a longitudinal series of coil springs, a flexible member between each two adjacent springs secured at its opposite ends to said springs, a flexible member extending lengthwise of the springs and first mentioned members and anchored at its ends, and a flexible sheath enclosing the springs and flexible members and having transversely extending members of greater width than the spaces between adjacent coils of the springs when the springs are extended to the limit determined by the second mentioned member, the transverse members being interwoven with the first and second mentioned members.

8. An elastic material comprising a plurality of coil springs positioned lengthwise of each other, a flexible member of greater width than thickness positioned between the springsand anchored at its ends, said inember being slack when the springs are con tracted, and transversely extendin flexible members covering the springs o greater width than the spaces between adjacent coils of the springs when the springs are extended to the limit determined by the first mentioned member. v

9. An elastic material comprising a plurality of coil springs positioned lengthwise of each other, a flexible member of greater width than thickness positioned between the springs and anchored at its ends, said member being slack when the springs are contracted, and transversely extending flexible members covering the springs of greater width than the spaces between adjacent coils of the springs whenthe springs are extended to, the ;limit determined by the first men tioned member. y

10. An elastic material comprising a plurality of longitudinal series of coil springs,

the series being positioned lengthwise of. each other, a flexible member between each two adjacent springs of each series secured at its opposite ends to said springs, a flexible member of greater width than thickness extending lengthwise between the springs of different series and between theflexible members associated with difl'erent series of the springs, the second mentioned flexible member being slack when the springs are contracted, and transversely extending flex ible members covering the springs of greater width than the spaces between adjacent coils v of the springs when the springs are extended to the limit determined by the second mentioned member, said second mentioned member being interwoven with the-third men-- tioned members.

11. An elastic material comprising a plurality of longitudinal series of coil springs, the series being positioned lengthwise of each other, a flexible member between each two adjacent springs of each series secured .at its opposite ends to said sprlngs, a flexible member extending lengthwise between the springs of different series and between the Y flexible members associated with the different series of springs, the second mentioned. flexible member being slack when the springs are contracted, and transversely extending flexible members covering the springs of greater width than the spaces between adjacent coils of the springs'when the springs are extended to the limit determined by the second mentioned member, said second mentioned member being interwoven with the third mentioncdmembers. I

Signed at Los An eles,-Calif., this 5th day of N ovember, 192%. v

lVARR-EN H. FROST.

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