US1709198A - Elastic member - Google Patents

Description

April-16., 1929. E, 5PE|DEL 1,709,198

- A ELAsTIC MEMBER Original Filed March 50. 1927 /7 INVENTOR.

/7 ATTORNEYS. if i y Patented Apr. 16, 1929.

UNITED STATES i PATENT OFFICE.

EUGEN SPEIDEL, OF PFORZHEIMGERMANY,

AssIGNoR'To' FR. SPEIDEL, oF PROVI- DENCE, RHODE ISLAND, A FIRMY COMPRISING THE FOLLOWING MEMBERS, FRED- EBICK SPEIDEL AND EUGEN SPEIDEL.

EL'AsTIo MEMBER.

Continuation of application `Serial No.179,585, filed Marchl 1927, Patent No. 1,647,060, dated October 25, 1927. This applicationled .Tune 30, 1927.

This invention relates to an improvedv con-v struction of an elastic member more particularly adapted for use as an eXtendible bracelet, garter, neck band or the like and is a.con-

tinuation of my co-,pending application, Serial No. 17 9,585, jtiled March 30, 1927, patented October 25, 1927, No. 1,647,060 and the object of this invention is to Aconstruct such an elastic member of coils of wire having their convolutions intermeshing one Y with the other along their length and to position a vcore ormiddle member in the coils to re-` tain them in interengaging relation.

these helical coils of a right and lett hand pitch and causethe 4coils or convolutions to intermesh one with the other whereby the coils serve to support each other and to provide a flexible core of suitablematerial and the coils so that each construction vin the coils to prevent them from lateral displacement. Y

A further object of the invention 1s to eX- tend a core through the. coils to Vmaintain them in intermeshed relation and limit the extensionof the elastic coil member.

The invention further consists in tipping will lie in a p lane .at an angle'to their axes wherebythe coils overly each other in the manner of fish scales.

Further, it is found of advantageto form the Veoreor locking member of chain,.the

links of which-,engage the opposite inner edges of the adjacent intermeshing coils to lock them in alignment and also tolimit the extension or stretch of the device.

With these and other objects in view, the

invention consistsoil certain novel vfeatures offconstruction, aswill be'more fully described, and particularly pointed outin the appended claims. Y

In the accompanying drawings:

Figure 1 is a side elevation illustrating my improved elastic member in bracelet form with its ends'attached to opposite sides of a wrist watch.

Figure 2 isa short length of a left hand helical coil.

being made by Serial No. 202,701.

Figure 3 is a corresponding length of a right hand helical coil.

Figure 4 shows these right and left hand helical coils as intermeshing'one with thev mg'these coils as beingset-so that each will A further object of the invention is to formv lie in a plane at an angle to their axes to overly each other 1n the manner of ish scales.

Figure 7 is an end view of the intermeshing coils with a chain Vas a core extending through and engaging tbe opposite inner edges of the adjacent coils to maintain them in intermeshing relation.

Fig. 8 is a detail view ner in which the clasps.

f It is found of advantage in the construction of elastic members of this character more particularly for usein the construction of extendiblev bracelets, garters, neck bands or the like, of advantage to form such a band showing the mancoils'are attached to the i or member that will be readily extendible and with sulcient extension when used as a bracelet to readily pass over the hand of the wearer and at the same time form a braceletwhich is handsome and attractive in appearance and also one that isextremely simple and inexpensive in construction, the same simply winding' helical coils of wire preferably ofthe right and left hand coils and intermeshing these coils one with the other along their length, these coils being locked together against lateral disengagement by positioning a suitable core in the coils which will engage the opposite inner I edges of the adjacent coils to lock them against such lateral displacement; also to provide the core of such a construction that it will limit the eXtendibility of the bracelet so that the helical coils cannot be strained and disrupted suiciently to prevent them from returning `when released to their closely coiled formation and so prevent injury thereto; and the following is a detailed description of one means by which these advantageous results may be accomplished Vllith referenceto the drawings, 10 designates a short length of the left hand helical Wire coil which may be made of any desired length and preferably made of a resilient Wire of the desired gage and Wound into coils of the desired diameter and 11 designates the right hand coil which is preferably made of similarly sized Wire but which may be of a Wire of another color or character if desired. y i

In assembling these two coilsV to Vform an elastic member, I place them side by side and bytensioning the coils slightly to separate them the convolutions of one are slippedbetween those ofthe other and the two coilsare In this Way the con-y so yconnected together. volutions of the opposite coil members serve to assistin lsupporting` eachother,

In order to maintain these coils in inter- `meshing Vrelation I extend the core 12 through the center of these intermeshing coils which may be of any suitable material to loch the coils against relative lateral dis-v placement. This core is preferablyflexible so as to permit free bending action of the.

coils and is preferably connected to the opposite ends of the coils in such a Way as to permit but yet limit the extension of the elastic member and so prevent the coils from becoming ruptured or opened up sufficiently to prevent them from returning to closed position When released. To accomplish this in a simple and'eft'ective way I preferably employ a. met-al chain, the links of Which are preferably rolled flat as best illustrated in Figure 7 wherein the edge 13 of arlink engages the inner edge 14C of a convolution of the left hand helix 15 and the opposite edge I6 of thelink engages the opposite inner edge 17 of the convolution 18 whereby these coils are y permitted free endivise extension but prevented from relative lateral disengaging movement thereby retaining them in the desired alignment one with the other; also thischain by attaching it to the opposite ends of thecoils. or to other members adjacent the opposite'ends of the combination coil the extension of the coil is limited and the device is protected-against being ruptured by undue extension.

It is also found of particular advantage in orderl to enhance the appearance of the combination coil as a bracelet or ornamental member to pass the coil through a set of rolls or dies and so tip them over at an angle as best illustrated in Figures 5 and 6 and in some cases to present the appearance of be; ing flattened or ornamented on their top and bottom surfaces and also presenting afsofter .feel to the arm of the wearer. It may also be noted that in some instances a cap or closure element 19 may serve as a hook or attaching device to receive the opposite ends of the bracelet coils and also this cap inember in some instances may provide ananchor 'for the ends of the chain 12 bypassing a rvsolelytovvards the construction illustrated,

but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to Which the device is susceptible, the invention being defined` and limited'only by the terms of the appended claims.

I claim: Y

Y 1. elastic member comprising two lengths of helical coils of Wire intermeshing onewvithl the otherv along their length With the axis of one coil parallel to and spaced from the axis of Vthe other coil, and a flexible core in ysaid coils maintaining them in intermeshing relation. Y v Y r 2.An elastic member comprising lengths of right and left hand helical coils of Wire intermeshing along their length and a' flexible core insaid coilsrmaintaining Vthem in intermeshing relation.v Y

3. An elastic member comprising lengths ofright and left hand intermeshing helical coils of Wire and a iiexible core in said coils maintaining them in intermeshing relation, saidcore also being'arranged tolimit the end- Wise extension of said coil members.

, 4. An elastic member comprising lengths of right and left hand helical coils of Wire having their convolutions intermeshing vvithl Veach other alongf'theirlength, and a core extending 1 through said coils' maintaining them in intermeshing relation. Y

5. An elastic member comprising lengths of right and left hand helical coils of Wire having their convolutions intermeshing with each other 'along their length and -ay core ex tending through said coils maintaining them in intermeshing relation, said core being alsor arranged to limit the extension of said coil members. Y

6. An elastic band comprising lengths of right'and left hand helical coils of Wire, the convolutions of said coils interengaging one with the other along their length, a member extending through said coils maintaining them in interengaging relation and arranged to limit their extension and vconnecting means on the ends of said band.

7 Ank elastic member comprising lengths of right and left hand helical coils int-ermeshing one with the .other along their length the convolutions of said coils being set on an incline to overly each other, and

means for maintaining said coils in intermeshingrelation.

8. An elastic band comprising lengths of right and lefthand helical coilsrarranged with Jtheir convolutions intermeshing with each other along their length, said convolutions being inclined relative to their axes to overlie each other and a chain extending through the convolutions the links of which engage the opposite sides of the alternate 10 convolutions to retain them in operative alignment, said chain also serving to limit the extension of the band.

In testimony whereof I aii'ix my signature.

EUGEN SPEIDEL.

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