US439903A

US439903A - Alfred j

Info

Publication number: US439903A
Authority: US
Publication date: 1890-11-04
Anticipated expiration: 1907-11-04

Description

(No Model.)

A. J. SHIPLEY.

BUTTON.

No. 439,903. Patented Nov. 4, 1890.

wmf 1 W UNITED STATES PATENT OFFICE.

ALFRED J. SHIPLEY, OF VVATERBURY, CONNECTICUT, ASSIGNOR TO THE SCOVILL MANUFACTURING COMPANY, OF SAME PLACE.

BUTTON.

SPECIFICATION forming part of Letters Patent No. 439,903, dated November 4, 1890.

Application filed February 24, 1890. Serial No. 341,502. (No model.)

' To all whom it may concern.-

Be it known that I, ALFRED J. SHIPLEY, of Waterbury, in the county of New Haven and State of Connecticut, have invented a new 1mprovement in Button-Fasteners; and I do hereby declare the following, when taken in connection with accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, a vertical section showing the button and fastening as set together; Fig. 2, a vertical section of the same, representing the fastening as introduced and about to be set; Fig. 3, a sectional view of the anvil detached; Fig. 4, an under face of the anvil detached; Fig. 5, the fastener detached.

This invention relates to an improvement in that class of fasteners for buttons in which the fastening device is of a two-pronged or staple shape, the prongs adapted to pass through the fabric from the reverse side into the interior of the button upon an anvil and deflected by the anvil between the front and back, so as to interlock the button with the fastener and secure the button in place.

The prongs of the fastener are usually pointed, so as to readily pass through the fabric, and these point ends, striking the anvil, are deflected to the right and left, turning the points toward the back.

It is necessary to make the prongs of the fastener of sufficient length for the thickest material to v hich it may be desired to attach the button-that is, so that with such thick material there will be a suiiicient projection of the prongs into the button to permit the points of the fastener to be deflected and turned within the button, so as to secure the fastener. Consequently as the material is less in thickness there is a greater length of the prongs within the button. These prongs are best made from wire and must be of sufficient strength to withstand the force required to deflect and turn the points. The deflecting of the points of the prongs by the anvil turns them toward the back and so that the points strike the back, and it being of thin metal, or of considerably less strength than the prongs, it frequently occurs that the points of the prongs punch through the back, the force applied being sufficient to produce this result. Such protrusion of the points through the back is obviously'objectionable.

The object of my invention is to prevent the possibility of the points being thus forced through the back; and it consists in the construotion of the anvil-surface within the button, as hereinafter described, and more particularly recited in the claim.

A represents the back of the button, and B the front closed upon the back in the usual manner.

In the illustration the button is represented as constructed with a shank C, so as to raise the button from the material to which it is to beattached, also in the usual manner, the shank and back of the button being centrally open to the interior. \Vithin the button, between the back and front, the anvil D is arranged. This anvil is of circular shape and presents at its center a convex surface a toward the opening into the button, and so that as the prongs strike this convex surface they will be deflected outward. The outer portion of the anvil surrounding this central convex portion isturned rearward, and so as to present a short concave curve Z1 toward the back, this curved portion being concentric with the convex portion and in such relation to the convex portion that as the points strike the said convex portion of the anvil they are deflected outward onto this concave rim of the anvil, and this concave shape gives to the points of the fastener a continuous curve so long as it is in motion, thereby coiling the point ends of the fastener, as represented at d, Fig. 1, the points coiling within the said rearward curved portion of the anvil and the back.

The fastener is of the usual two-pronged character, as seen in Fig. 5, the prongs made from wire. In order that the prongs may readily coil within the space provided for them and as described, the prongs, which are made from wire, are flattened upon their inner and outer sides, and so as to produce flat surfaces on both sides in the plane of the axis of coiling-that is, the planes of the flatsurfaces are at right angles to the plane in which the prongs stand, so that as the points strike the anvil and are turned into the concave portion the fiat portions readily roll or coil, as described, and because of such flat surfaces are not liable to be thrown out of the plane of coiling. Again,the metal of the points being thus flattened, several convolutions may be produced within the button, as shown, without requiring any increased space within the button.

The coiling of the ends of the fastener between the back and anvil so turns the ends of the fastener that they are presented obliquely to the back, and consequently cannot pierce the back; and, further, the coiling of the points between the anvil and the back fills the space between the anvil and back and soas to insure a firm bearing within the button between it and its fastener.

Tolocate the anvil within the button and secure it in place, the frontis constructed wi :h aninward central convex projection e, corresponding to the central back of the anvil, and so that while the outer edge of the anvil will bear upon the back this inward projection of the front will rest in the concave back of the anvil and prevent the sliding of the anvil, so that it is positively held in its central position, and may therefore be of considerably less diameter than the body of the button, and thus facilitate the turning of the edges of the anvil directly toward the back.

I do not in this application claim the peculiar construction of fastener, as that will constitute the subject of an independent application.

I claim A button composed of the frontAand back B, the back centrally open for the introduction of the fastener, combined with an anvil D, set between said back and front, the said anvil of concavo-convex shape in centralportion, the convex surface toward the opening into the back and constructed with a surrounding reversely-curved surface I), the front of the button constructed with a central depression 0 corresponding to the concave surface of the back of the anvil and so as-to rest therein, substantially as described.

ALFRED J. SHIPLEY.

Vitnesses:

T. R. HYDE, Jr., C. W. DE MOTT.