Nov. 20, 1945. J, NEUMAIQ 2,389,272 BUTTONHOLE CONSTRUCTION Filed Oct. 1, 1943 [22.1

I #16 ?rTonA/E/s. Patented Nov. 20, 1945 2,389,272

UNITED STATES PATENT OFFICE 2,389,272 au'r'rormona cons'rauc'non Jacob Neuman. St. Louis, Mo. Application 0mm 1. 1943. Serial No. 504,571 a Claims. (of. 24-202) Present day buttonhole constructions comprise buttonhole thread 5 are interlocked with the ''a coarse foundation thread or gimp that is laid coarse foundation thread or gimp I and thus Pre around the edge of the buttonhole and is secured vent longitudinal sliding movement of said gimp to the fabric by a fine overcast stitched covering through said overcast buttonhole stitches and thread. Such a buttonhole construction has sev wear and breakage of the thin buttonhole thread eral serious disadvantages. It permits longitu due to such movement. The overcast stitches of dinal sliding movement of the foundation thread the buttonhole thread 5 seat in the circumferen or gimp through the ?ne overcast covering tial grooves B in the foundation thread or gimp thread, thereby distorting the buttonhole; and 3 preferably flush with or slightly below the level the ?ne covering thread is liable to break due to 10 of the tops of said grooves, whereby the coarse, the wear thereon during the buttoning and un more wear resisting gimp relieves the fine button buttoning operation and permit the gimp to be hole thread of the wear due to the buttonina' displaced and the edge of the buttonhole to be and unbuttoning operations, thereby preventing come frayed and present an unsightly appear breakage of the buttonhole thread, displacement ance. The object of the present-invention is to 15 of the gimp and the resulting distortion and fray devise a simple and easily constructed buttonhole ing of the buttonhole. The circumferential but construction that will overcome all of the above tonhole thread holding grooves 6 of the gimp 3 noted disadvantages of the present day button also serve to space the overcast buttonhole hole construction. The invention consists in the ' stitches 5 equal distances apart along the gimp, improved gimp and buttonhole construction and 20 thus improving the appearance of the button in the construction, combinations and arrange hole construction. The gimp is further anchored ments of parts hereinafter described and claimed. to the material during the operation of pressing , In the accompanying drawing, which forms the same, which operation forces the portions of part of this speci?cation and wherein like sym the material into the grooves of the gimp and thus bolsrefer to like parts wherever they occur, 25 provides an interlocking connection therebe Fig. 1 is a face view of a piece of material pro tween. vided with a buttonhole construction embodying As shown in Fig. 4, the circumferentially my invention, . grooved gimp or foundation thread 3 is prefer Fig. 2 is an enlarged fragmentary longitudinal ably formed by helically winding alternately rel section on the line 2-2 in Fig. 1 through one 30 atively thin and thick threads ‘I and 8 around a edge of the buttonhole construction, _ central core member 9, the thin thread forming Fig. 3 is an enlarged transverse section on the the bottom of the groove and the thick thread line 3-3 through one edge of the buttonhole con forming the sides thereof. As shown in Fig. 5, the struction, _ gimp may be formed with longitudinally spaced Fig. 4 is a part side elevational and part longi 35 annular grooves to that are impressed therein. tudinal sectional view of a length of the founda The gimp or foundation thread 3 and the cover tion thread or gimp; and ing or buttonhole thread I may be made of any Fig. 5 is a similar view of a modi?ed form of . desired substance. ‘ foundation thread or gimp. The phrase “multiplicity of circumferential My buttonhole construction comprises a piece 40 grooves." as used in some of the claims, is in of fabric I having a buttonhole 2 cut therein, a tended to mean either the several turns or con coarse foundation thread or gimp 3 laid around volutions of the helical groove. or the separate the edge of said opening with its ends brought to longitudinally spaced annular grooves. gether and anchored at the small end of the but What I claim is: tonhole to said material by suitable stitching O, 45 1. A buttonhole construction comprising a and a fine overcast stitched covering or button piece of material having a buttonhole therein, a hole thread 5 that is looped around said founda coarse foundation thread extending around the tion thread or gimp and around the edge of the edge of said buttonhole and having a multiplicity buttonhole opening and through said material. of circumferentially grooved portions therein. According to the present invention, the-foun 50 and a thin buttonhole thread extending over said dation thread or gimp 3 is formed throughout ‘ foundation thread and seating inv the grooved the length thereof with a multiplicity of circum portions thereof and securing the same to said ferential grooves 6 in which the thin overcast material. covering or buttonhole thread 5 is laid. By this 2. A buttonhole construction comprising. a arrangement, the overcast stitches of the fine piece of material having a buttonhole therein, a - 2 2,889,272 coarse foundation thread seating on said mate edge of said buttonhoie and having a helical rial around the edge of said buttonhole and hav groove therein, and a huttonhole thread extend ing a multiplicity of circumferential]! grooved , ing over said foundation thread and seating in portions therein, and thin overcast stitches ex the ‘groove thereof and securing the same to said tending over said'i'oundation thread and seating 5 material, said foundation thread comprising a in the grooved portions thereof and securing the central core and alternate thick and thin threads same to said material. woundhelically around said core. ' 3. A buttonhole construction comprising _a 6. A huttonhole construction comprising a piece of material having a buttonhole therein, a piece of material having a buttonhole therein, a coarse foundation thread seating on said mate 10 coarse foundation thread extending around the rial around the edge of said buttonhole and hav edge of said buttonhole and having a helical ing a multiplicity of circumferentially grooved groove therein and a buttonhole thread extend portions therein, and thin overcast stitches ex ing over said foundation thread and seating in tending over said foundation thread and seating the groove thereof substantially ?ush with the in the grooved portions thereof and securing the 15 periphery thereof and securing the same to said same to said material, said stitches being dis material. posed substantiaily ?ush with the tops of said 7. A non-metallic buttonhole foundation grooved portions. thread or gimp having a series of longitudinally 4. A buttonhole construction comprising a spaced annular grooves pressed therein adapted piece of material having a buttonhole therein, a 20 to accommodate an overcast securing thread for coarse foundation thread extending around the said foundation thread or gimp. edge of said buttonhole and having a helical 8. A non-metallic buttonhole foundation groove therein, and a buttonhole thread extend thread or gimp comprising a central core and ins over said foundation thread and seating in heiically wound alternately arranged thick and the groove thereof and securing the same to said 25 thin threads that cooperate to form a peripheral material. helical groove adapted to receive an overcast se 5. A buttonhole construction comprising a curing thread for said foundation thread or piece of material having a buttonhole therein, a gimp. coarse foundation thread extending around the JACOB NEUMAN.