US798708A - Snap-fastener. - Google Patents

Description

PATENTED SEPT. 5, 1905.

E. D. SIMONS.

SNAP FASTBNER.

APPLICATION FILED N0\T.14,1904.

q Ui Mmmea 67/2/ PrYllENT OFFIE SNAP-FASTENER.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed November 14, 1904. Serial No. 232,635.

To (/71 11-71mm if ntr/ veneer/1 Be it known that l, Euxns'r l). Snioxs, a citizen of the United States, residing at \Vaterbury, in thecountyof New Haven and State of Connecticut, have invented a certain new and useful improvement in Sinip-l asteners, of which the following is a full, clear, and exact description.

Snapfasteners for garments and other articles have been fastened to the article by the use of prongs integral with or applied to them, such prongs passing through the article from one side and clenched upon the other side of the article or within a receiving-cap applied to this opposite side, and this cap also affords an external or exposed finish for the fasteners. It is old also to construct a snapfastener of a socket member applied to one side of an article and having a part projecting through a hole in the article and engaged by a cap applied to the other side of the article and serving both as the fastening and linishing mediums of the fastener. in this class of fasteners the substance of the article is gripped between the flange of the socket and the cap; but in the use of this class of snapfasteners in holes in textile fabrics, looselywoven textures, and thin and elastic materials and where appreciable strain results it frequently occurs that the grip of the socket and cap on the article is impaired and the hole in the article is enlarged or stretched and the socket is pulled out of the article, thus not only losing the socket, but usually irremediably injuring the article.

The object of this invention is to overcome the diliiculties above mentioned; and to this end the invention consists in a socket for snap-fasteners having a base-flange and a chamber rising therefrom adapted to enter a hole inan article to which it is to be applied and to receive the stud member and also the fastening device, said flange made up of a series of spring-arms in each of which is a prong or spur adapted to bite into the substance of the article as far distant as is possible within the bounds of the socket from the edge of the socket-receiving hole in the article, so as to grip and impale the substance of the article about said hole, and thus, on the one hand, relieve the fastening-cap of that duty, while, on the other hand, themselves subserving no essential function as fastening mediums for the socket or its cap.

ln the accompanying drawings, illustrating the invention, in the several figures of which like parts are similarly designated, Figure l a perspective view showing one embodiment of the invention. Fig. 2 is a crosssec tion of the construction in Fig. 1. Fig. 3 is a perspective view illustrating another form of the invention. Fig. 11: is a cross-section of the form shown in l ig. 3. Fig.5 is a crosssection illustrative ofeither of the two forms of the invention shown in the other ligures and the application thereof to a piece of fabric.

The basedlange l of the socket and the studreceiving chamber 2, rising centrally therefrom, are integral and slittcd radially to form a series of spring arms or sections, the slits extending from the lower part of the studreceiving chamber 2 into and clear across the base-flange. The stud-receiving chamber is made with an open top 3 to receive the fastening and finishing cap a, (see Fig. 5,) which cap is made, preferably, as a sort of headed eyelet or hollow rivet, the tubular portion of which is passed into the open end of the stud receiving chamber 2 and expanded therein, as shown in Fig. 5.

\Vhen a snap-fastener comprising, essentially, a socket member and a fastening-stud is applied to articles by entering the studreceiving chamber and hole in the article, as at in Fig. 5, and the article is of textile fabric or is of loose texture or is thin or elastie, it sometimes happens that the grip upon the cloth between the cap and the flange is insullicient to resist the strains of use putupon the device, and the result is that the device pulls out of the article. In order to resist this tendency, I, provide an auxiliary grip upon the article around the hole therein and as far distant therefrom as possible, and, as shown in Figs. 1, 2, and, let us say, 5, these auxiliary gripping devices may consist of prongs (5, cut from the substance of the base-flange and within its periphery and struck up therefrom substantially at right angles, or, as shown in Figs. 3 and a, the auxiliary gripping devices maybe the burs or spurs 7, formed by punching holes in the base-flange. It is not necessary that these prongs or spurs should extend entirely through the fabric and it is immaterial whether they do or not, since their points are covered usually by the cap 4, and in any event these prongs or spurs have as their essential and fundamental function not that of fas- 5 tening the socket to the article, but of gripping and impaling the article around the hole made therein, so as to serve as an auxiliary to resist the strains upon the socket which would have a tendency to pull the socket from the article.

As shown, the base-flange may be provided with dents 8, which sink more or less into the substance of the article and assist in gripping the article.

The slits hereinabove referred to, by which the socket is formed with spring arms or sections, are designated 9. Each of the spring arms or sections in the base-flangehas aprong or spur, and hence each of said spring arms or sections has an independent bite on the article. Since the prongs or spurs are not upset or clenched within the article, it is obvious that they do not appreciably interfere with the resiliency of the socket when applied to a resilient socket. An additional function possessed by the prongs or spurs is the prevention of the deformation of the resilient sections of the base-flange, due to hard usage or blows, since these prongs or spurs, being covered by the cap 4, as already stated and as seen in Fig. 5, will transmit undue pressure on the flange to the cap. without being distorted. Still another function possessed by the prongs or spurs is the prevention of the overcoming of the elastic limit of the resilient socket by the repeated connection and disconnection of the socket with the stud, since the surrounding article resistsundue lateralmovement, and to this extent the prongs or spurs take the place of the rings and springs heretofore used which have in View an analogous purpose.

hat I claim is A snap-fastener socket, comprising a socket proper having a base-flange and a chamber rising from it and adapted to enter a hole in the article to which the fastener is to be applied and also adapted to receive the stud member, said chamber having an open top, and the chamber and flange radially slitted to .form spring-arms which extend to the circumference of the flange, each of said spring-arms provided with a prong or spur to enter and impale the article around the hole therein and prevent the socket from being pulled away from'the article, and a fastening device adapted to be applied to the oppositeside of the article from the socket-and fixedly engage the open top of the chamber of the socket.

In testimony whereof I have hereunto set my hand this 11th day of November, A. D. 1904:.

ERNEST D. SIMONS.

l/Vitn esses:

Gruo. E. TOMPKINS, E. A. HYDE.

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