US2400594A - Wrist watch strap - Google Patents

Description

May 21,l 1946. J. c. Nlr-:NABER WRIST-WATCH STRAPV Filed Jan. 27, 1943 I N VEN TOR.

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A TT Ys Patented May 21, 1946 UMTEDl STATESIII .fir 13N-r` orifice i l l l 2,400,594 'y l i Wnisr WATCH STRAP Joseph Charles Nienaber, Cincinnati, Ohio Application January 27, 1943, Serial No. 473,710

2 claims. (ci. 224-4) This invention relates -to improvements' in wrist watch straps and is particularly directed to wrist watch straps made entirely of leather, or other suitable materials. I

An object of the invention is to yprovide a relloop for a lamiatively thin and integral end nated watch strap which is particularly adapted to receive the strap pin bar ofl a wrist Watch.

Another object of the invention is to provide a leather wrist watch strap end loop thereon and which has :a two-ply t Y, L.- ness .throughout its entire length thereby insuring uniform strength and pliability of the strap. Another object of the invention is to provide a wrist watch strap which is iinished cnboth its sides and which has a two ply thickness throughout its width and length to preclude `the penetration of perspiration into the plies and prevent discoloration and deterioration of the strap material and/or wrinkling of the longitudinal edges of said strap. y

Another object of the invention is to provide a reliable watch strap made of relatively thin material's and which presents a uniform, pleasing appearance when worn on the wrist and conduces to the comfort of the wearer.

Other objects will become apparent from the following specication and drawing, in which:

Fig. 1 is a top, plan View of my wrist 'watch strap.

Fig. 2 is a bottom plan view of the strap illustrated in Fig. l. Y

Fig. 3 is a plan view of the buckle carrying end of my strap in an opened, at position.

Fig. 4 is a plan view of the selective buckle receiving end of my strap in an opened, nat position.

Fig. 5 through the center of my strap 'shown in parts thereof being broken away.

Fig. 6 is a fragmental perspective view of the watch pin engaging loop for the strap.

Figs. 7 and 8 are fragmental perspective views of my watch strap in intermediate stages of its construction.

Fig. 9 is a fragmental, perspective view illustrating the manner in which the integral end loop for the strap is cut from a two-ply length of leather. v

The numeral I indicates a conventional wrist watch which has a pair of spaced years Il extending from opposite sides of the watch case for holding a strap engaging bar or pin I2 between them. My watch strap I3 is divided intermediate its ends by the interposition of the is an enlarged longitudinal section Fig. l.,

having an integral l watch i@ into a buckle carrying end Id and a selective buckle receiving end I in the lconventional manner. As most clearly indicated in Fig. 4, the selectivebuckle receiving end I5 of the 'strap is made from a relatively thin piece of leatherl stock and -isprovided with anv intermediate body portion I5 and longitudinally extending edge sections ll and I3 integrally united to and extending transversely from. said body portion. The finished side ofthe leather lcommisling the body portion I6 is exposed` when the strep is being worn on the person and the finished side of the leather comprising the end sections Il and Itis in engagement with the wearers wrist. The longitudinal edge of the unfinished side of section- I'I is skived throughout its length as indicated by the numeral I9, `while the finished side of section I8 is skived along its longitudinal edge 2E. The edge sections are transversely folded upon the body portion along longitudinal` .fold lines 2l so that the skived edges of the'sections meet intermediate the width of the strap in a skived joint 22 (Figs. 2 and 6), an adhesive material being applied to said skived edges to securely fasten said edges together.

As illustrated in Fig. 4, an end flap 23 is formed by thel extension of the body portion beyond the adjacent ends 24 .and 25 of the edge sections il and I8, respectively. The transverse extremity of the flap is provided with a skived portion 26. The end flap is folded back upon itself on line 260 to form a loop 2! for engaging thewrist watch pin, and as shown in Fig. 6, said skived portion 26 overlies and is in engagement with a tapered portion 28 formed in the adjacent edges 24 and 25 of the folded end sections Il and I8, respectively (Figs. 5 and 6). An adhesive material may be applied betweenrthe skived edge 26 and the tapered portion 28 to form an abutting tapered joint 29 between the transverse eX- tremity of the flap and the adjacent edges of the edge sections. A line of stitches 30 secure the'iiap 23 to the edge sections and to the body portion I6, and a line of stitches 3| may be provided adjacent the edges of the folded watch strap.

A pin engaging loop 32 is formed on the buckle Y carrying end in a manner similar to that described on the selective buckle receiving end I5,

said loop being provided by a ap 33 von the intermediate body portionk 34 which extends beyond the adjacent edges 35 and 36 of edge sections 3l and 38, respectively. A buckle loop 39 is provided for the strap by a flap 40 which is formed by the extension of the body portion 34 beyond the ad- Vsecure jointv22'between said edges. noted that. the longitudinal joint 22 is disposed Vmeans of two lines of stitches 46 and 41 which secure the ap together on either side of said keeper. Y A line of stitches 48 may be positioned adjacent the 'longitudinal foldedredges of the strap.

strap illustrated in Figs. 1-6y consists in cutting jan elongated strip 49 from a piece of thin leather stock, said strip having a transverse dimension larger than the Width of the finished two-ply strap to provide for an overlapping longitudinal joint disposed intermediate one of the plies.` As shown in Fig, 7 opposed longitudinal edges of the strip are then provided with tapered edges which are cutY in Y,opposite surfaces of thestrip, the tapered edge 50 being formed in the unfinished sur# face of the leather strip and the tapered edge 52 formed in its finished surfacer53. An adhesive materialis then applied to both of said tapered edges andthe strip is then formed into a tubular shape 54 by bringing the tapered edges into spaced relationship (Fig. 8). In this tubular shape the finished` surface 53 forms the exterior surface of thertubeand the tapered edges 50 and 52 extend longitudinally thereof. The tube is then run into apressing device and fiattened into a two-ply sheet 56 shown in Fig. 9

with the tapered edges in abutting and overlying relationship, saidV pressing operation forming a It Will be intermediate the folded edges 5l ing this pressing operation. Y l

The sheet 56`is then cut'into suitable Watch strap lengths and the proper ends of each length are provided with loops for engaging the watch pin bar or the buckle of the completed strap. These loops are formed as indicated Yin Fig. 9 by making a diagonal, transverse cut 58 through the ply 59 having the joint 22gtherein, and from the inner edge of said diagonal cut, the cutting operation is continued outwardly to the end of said length on a horizontal line 60 thus cutting the portion 6I of thek ply 59 from the length. The transverse'extremity 62 of the ply 63 is then skived and said rextremity is folded back upon itself so that the skived portion thereon is in of the sheet dur- The method of manufacturing the wrist watchv 2,400,594 Y f Y abutting relationship with the tapered ends of` ply 59 made by the cut 58. Adhesive material and then a line of stitches is applied to forni' avsecure joint 29 (Fig. 6) between the skived transverse extremity of the ply 63 andthe Y the ply 59 formed by the cut 58.

' What is claimed is:

1. As an article ofmanufacture, a two part wrist Watch strap each constructed from a single thicknessof leather having nishedA and unfinished sides Vand each part comprising a, longi'V tudinally extending, intermediate body portion, foreshortened edge sections folded transversely upon the unfinished sideof the bodyportion, the

said sections having longitudinally extending tapered edges disposed in abutting relationship in said folded positions, the finished Sides of the sections forming the interior, wrist engaging side for the strap part, tapered transverse ends on the edge sections, an end iiap formed by the extension of the intermediate body portion beyond the said tapered ends of the edge sections, said end flap being folded back uponitself toform an inY tegral watch pin enga-ging'loop, a tapered trans'- verse extremity on the flap'overlying the'taloled Vends of the sections and disposed in abuttingV relationship therewith, means for securing theiiap extremity to the edges of the sections, and means on the free ends of the strap parts for securing the strap to a wrist. f y

2. As an article of 'manufacture, aV two part wrist watch strap each constructed from a single thickness of leather having finished and unnished sides and each part comprising ajlongitudinally extending, intermediate body portion, foreshortened edge sections folded transversely upon the unnnished side' o f the body portion, the said rsections vhaving longitudinally extending folded position, the finished sides ofthesections forming the interior, wristengaging sidejforrthe strap part, transverse ends on the edge sections, an end flap formed by the extension of the inter-A mediate body portion beyond the said ends of the edge sections, said end iap being'folded'bac'k upon itself to form an integral watch pin engaging loop, the transverse extremity of the strap being in abutting relationship with the ends Yof the sections,n means for securingv the flap extremity to the intermediate body portionQand means on the free ends of the strap parts for securing the strap .to awrist. f` Y JOSEPH CHARLES NIENABER.v Y

tapered portion ofKY Y

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