US101565A - Improved die for forming sleeve-buttons - Google Patents

Description

dlnitcd tats?,

HENRY ANSLEY, OF WASHINGTON, DISTRICT OI COLUMBIA.

Letters Patent No. 101,565, dated April 5, 1870.

IMPROVED DIE FOR FORMIN'G SLEEVE-BUTTONS.

The Schedule referred to ln these LetterePatent and making part of the same.

To all whom it may concern.:v

Aexact description thereof, reference being had to the annexed drawing making part of this specification, in

whichl Figure 1 is a plan or top view of the lower or stationary die.

Figure 2 is a central vertical section thereof.

Figure 3 is a bottom view of the upper or movable die.

Figure 4 is a central vertical section thereof.

Figures 5, 6, and 7 are views of the punch.

Figure 8 is a plan view of the plate upon which the metal is placed fromwhich blanks are to be punched.

Figures 9 to 13 represent views of a sleeve-button at different stages ot' its manufacture.

The saine letters are used in the designation of identical parts in the several figures.

, The nature ofmy invention consistsin providing dies for forming sleeve-buttons or studs, one set-otl which is used to punch blanks to form the shank and cross-bar which are to unite the outer disk and coil of the button, and the other set for pressing the coil and cross-bar into the requisite form.

To enable those skilled in the art to make and use my invention, I will proceed to describe its construction and operation.A

In the drawing- A represents aT-shaped punch, the perpendicular bar of which has a tenon, a, formed on its end, as

Vshown in figs. 5 and 7.

The ends of the cross-bar are provided with angular grooves, a', and its outer face has a slight rise running from near its center to one end.

The punch is to be made so as to preserve its T- shaped form, say from one-fourth to one-half inch, and may then terminate in a plate or shank by which it can Ybe attached to a' suitable device for opeiatingit.

B represents a plate of metal, provided with a perfol-ation of the precise shape of the punch A, which the latter enters in punching the blank.

C represents the lower and 'stationary die, which may be made round, or 'of any other suitable form. It is to have a central perforation, of the form of the shank, which recedes into it while the coil and crossbar are being pressed.

In its upper plane surface a circular groove, of such diameter and width as it is intended to give the coil is to be formed, which gradually deepens in the direc. tion of the arrow from the point c to the point cl, where it terminates in a circular recess, ci.

A straight groove is also formed in the upper surface ol' this die, running across its center, and uniting with 'the circular groove, its position with reference to the recess c2 being such as is clearly shown in tig. l. It is of the depth of the circular groove where it unites therewith at the point c3; thence it gradually deepens to the central perforation; the opposite' portion, c, is very shallow, and of about uniform depth.

D represents the movable or upper die, which is to bel of similar form as the lower one.

Grooves are to be formed in its under plane surface, the outlines ot' which are like those in the die C, but the relative positions of the straight groove and the recess d2 are such that, when the dies come together, the straight grooves cover each other; but the recesses c2 and (l2 are about one-third ot' the periphery of the circular grooves apart from each other.

The circular groove in this die deepens from the point tl to the point tl, that is, in the opposite direction from the one inv the stationary die, which thus together form'a spiral groove, in .which the coil is t-o be pressed.

Its straight groove is formed like c ci, its position being such, however, that, on bringing the dies together, the deeper portion 1l in the upper, covers the shallow portion c* in the lower, so that, in pressing the coil Iand blank, one arm of the cross-bar of the latter is raised slightly above the other. v

The operation of' forming a sleeve-button or stud by these dies may be described as follows:

The dies having been attached to suitable devices for operating them, a blank is punched by the punch A, which blank is then, by its cross-bar, attached to the coil of wire, (which has been previously prepared,) as shown in lig. 10, by slipping its grooved ends on the wire, and soldering it thereto at the proper points. The blank and coil thus united are now placed upon the stationary pressing-die, the shank receding into its pelforation, the cross-bar laying in the transverse groove, and the coil in the spiral groove, its inner end just covering the recess el" in said die, and its outer end overlapping far enough to cover the recess d2 in the movable die, which lis now pressed down, giving the form shown in fig-11 to the' coil, its end being rounded and provided with slight knobs thereby. The outer disk of the butt-on is then to be riveted to the shank.

It will be seen that, by the operation of pressing, the overlapping ends of the coil are made to adhere to each other, necessitating their separation in tinsn- .ing the button.

Having thus described my invention, That I claim, and desire to secure by Letters Iatent, is-

1. The combination of the punch A and die-plate In testimony whereof I have signed my name to B, constructed substantially as shown and described, this specification in the presence of two subscribing and made to operate so as to punch a blank, in the witnesses.

manner and for the purpose specied. HENRY ANSLEY.

2. The combination of the dies C and D, con- Witnesses: Y structed substantially as shown and descnbed, and F. U. STIfrT,

made to operate as and for the purpose set foh. T. C. CONNOLLY

Images