US63905A

US63905A - James m

Info

Publication number: US63905A
Authority: US
Publication date: 1867-04-16
Anticipated expiration: 1884-04-16

Description

nrt-2h tetes strat Parts merrains.

'dige tiphnli rrfrrnh tu iu than Etnias lnnit mit uniting nrt nf tige senin.

To ALL WHoM 1T MAY eoNcERN;

Be it known that AI, JAMES M. KEEP, of the city-of New York, in the State and county of New York, haveA invented a new and useful improved Fastener for. Papers, Belting, Fabrics, etc., of the kind commonly used for securing together the leaves of manuscripts, lega-l, governmental, and Patent Office documents, music, ete., and which is also applicable to other purposes where a permanent fastener is required, and that the following is a full, clear, and exact description of my invention, reference being had to the drawings accompanying and form ing part of these specifications, by means of which my invention may be distinguished from all others of. the same class. i l

My invention consists in the constructing, in a manner to he hereinafter described, of a duplex button7 or fastener, composed of two separate parts, as shown at figs. 1 and 2, of any desired form or design, and of any suitable material, having upon its upper or male disk orplate a tube capable of Vboing passed through a hole in the papers or other materials to be united, and turned or clinched in a receptacle prepared for it in the lower or female disk or plate, which latter is to be provided with a conical-shaped protubcrance on its inner side, and an inner plate, between which and by means of the conical-shaped protuberanee the entering end of the tube of the male disk is spread apa-rt and firmly clinched, thus uniting the two portions of the duplex button or fastener, and firmly securing together the sheets of paper or other material to which it may be applied.

The object of my invention is to furnish a neat and convenient fastener, capable of securing and uniting the leaves of manuscripts, printed o1' written documents, music, etc., belting and various fabrics, without requiring the use of the press or other means now employed, the pressure of the fingers or a slight blow from any convenient instrument being suicient to secure the desired result; and which will at the same time present an ornamental appearance. In the plate of drawings accompanyingr these specifications- Figures 1 and 2 represent a perspective view of the two portions, male and female, of my ""duplex button or fastener. t

Figure 3 is a central vertical section of the saine, and its position when in use.v

Fig. 1 shows the upper or male portion of the fastener, the plate A 'beingY of a convex form,from the centre of which projects the tube B, whose sides are split to allow of its being spread open. From the innersicle ofthe female disk or plate C, tig. 2, projects the conical-shaped protubcrance D. On the inner side of this disk also, and covering the protubcrance D in such a manner as to leave a, narrow space between their surfaces, the plato E, having at its centre, and immediately over the point of the protuberance D, the orifice F, is firmly soldered or votherwise permanently attached. Now it will be readily seen that when the tube B is passed through an open ing in the papers to be united, and introduced into the orifice F in the plate E, its sides will be spread apart upon the wedge D, and forced down under the inner plate E. When the disks A and C are brought as closely together as the intervening substance will admit, the tube B will have become effectually clinched, as shown at fig. 3, and it will be found impossible to displace the articles thus fastened, or any one of them, without tearing them or destroying the fastener.

The following I claim as my invention, and desire to secure by Letters Patent:

The plate A, provided with a divided tube, B, when used in combination` with the plate C, provided with the conical'protuberanee D and the inner plate E, in which is formed an opening, F, to receive the tube B, the cone4 D serving to' spread and secure the sections ofthe divided tube beneath the plate E, as and for the purpose specified.

y J. M. KEEP.

Witnesses:

GEO. F. STEVENS, H. P. REYNOLDS.