US375629A - L hottges - Google Patents

Description

(No Model.) 1

G. HEIDMANN, EJHGTTGES & C. EGEN- BUTTON.

No. 375,629. Patented B60127, 1887'.

NITED. STATES PATENT OFFICE.

GOTTLIEB HEIDMANN, EMIL HGTTGES, AND CARL EGEN, OF BARMEN, PRUSSIA, GERMANY, ASSIGNORS TO HEIDMANN & HOTTGES, OF SAME PLACE.

BUTTON.

SPECIFICATION -forming part of Letters Patent Ne. 375,629, dated December 27, 1887.

Serial No. 236.612. (No model.)

T at whom, it may concern:

Be it known that we, GOTTLIEB HEIDMANN, merchant, a subject of the King of Prussia,- residing at Barinen, 93 Alleestrasse,Prussia, and

EMILHtSTTGEs, merchant,asub ject ofthe King of Prussia, residing at Barmen, 31 Haspderstrasse, Prussia, andCARL Eenn, machinist, a subject of the Kingof Prussia, residing at Barmen, Oberdornerstrasse, Prussia, have [0 invented certain new and useful Improvements in Buttons; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Referring to the drawings, which illustrate the several parts of which our improved button is composed, as well as the several steps in the assembling of the same to the completed button, Figure l is a transverse section of the disk of fabric that constitutes the covering for 2.5 the button. Fig. 2 is an under side view of the button priorto its being covered. Fig. 3 is a section taken on line 00 0c of Fig. 2. Fig. 4 is an inside view of the cylindrical retaining-cap, by means of which the covering is secured to 0 the button. Fig. 5 is a section on line y y of Fig. 4. Fig. 6 is a section on line a; x of Fig. 2, showing the covering for the button applied and ready to be secured thereto. Fig. 7 is a central transverse section showing the button complete.

The invention relates to that class of buttons known in the trade as cloth or covered buttons; and it consists in certain improvements, hereinafter fully described, and

set forth in the claims.

In cloth-covered buttons in which the covering is secured in place by bending the edge of the metallic disk that constitutes the button-head over the fabric and over the edge of a concavo-convex or bowl-shaped back-plate the covering is liable to draw out from between said disk and plate, and this occurs more readily when the button is in use and the back-plate becomes more or less loose on the outer disk. To avoid this we secure the fabric to the button by means of a toothed re taining-plate independent of the usual backplate. It is also well known that in the ordinary mode of securing the fabric to the but ton a more or less sharp edge is formed, that cuts the covering very rapidly. This we avoid by bending the edges of the metallic disk so as to form a nearly cylindrical annular flange around said disk, that not only serves to lock the back-plate securely thereto, but also forms an abutment or shoulder against which bear the teeth of the retaining plate or cap. Our improved button is therefore composed of the usual disk of any desired fabric, h, of a metallic disk, (1, that constitutes the button-head, 6 of a cloth-covered pad, (1, of paper or other suitable material that constitutes the filling of the button and forms the cloth shank d, of a cylindro-conical back-plate, Z), by means of which the pad d is held on the disk a, and of a cylindro-conical and toothed retaining-plate,

g, for securing the fabric h on the button.

The parts of which the button is made are assembled by means of any suitable machine, preferably by means of our improved machine 7 described in an application for Letters Patent of even date with this, Serial No. 236,673, as follows: The metallic disk in is laid on a smaller disk of any desired fabric on the lower die of the machine, while the pad inserted in the cylindro-conical back-plate b is inserted in the upper die, which latter is so constructed as to bend the edge of the disk at over the edge of the flaring or conical portion of the back-plate b, and form a nearly cylindrical flange, a, as shown in Figs. 1 and 2, without, however, clamping the edges of the fabric h between said flange and back-plate, as shown in Fig. 6.

It will thus be seen that a button having a rounded edge will result from this operation, 0 which edge is not liable to cut the fabric, and by means of which the back-plate b and pad (1 are securelylocked to the metallic disk a. At the same time a recess, a, is formed in the back of the button, the encompassingwall of 5 which forms an abutment for the teeth 9, formed in the cylindrical portion of the cylindro'conical retaining cap-plate 9. Such a cylindro-conical cap-plate gbeing inserted into a second upper die of appropriate construe ice tion, said die is forced onto the parts of the button in the lower die, first lapping the fabric over the flange a onto the back-plate b, then forcing the teeth 9' through the fabric immediately in rear of the flange, so that the said teeth will lie against such flange, and finally bending the upper edge of the cylindrical portion of the back-plate over the corresponding edge of the conical portion of the retainingcap 9, therebylocking all the parts securely together, as shown in Fig. 7.

It is obvious that however loose the backplate b may work the fabric cannot draw out so long as the edges of the back-plate are held by said flange.

It is further obvious that the greater the stress exerted by the fabric'in the direction of the arrows, Fig. 7, the more securely will it be locked to the flange a by pressing the teeth 9 against the shoulder a formed by said flange.

In practice the toothed portion of the cap plateg is of such a diameter as to fit snugly into the recess (1 formed on the back of the button, and the teeth thereof are of a length nearly equal or equal to the depth of said recess.

To give the button a nicer finish and to provide a better hold for the upset edge of the baclcplate I), we prefer to bend the edges of axial opening of the cap-plate g inwardly, as shown at 9 Figs. 5 and 7, to form a rounded edge, over which the outer edge of the backplate I) is bent, as shown at b, Fig. 7.

Having described our invention, what we claim is 1. Inacoveredbutton, thecoinbination,with the covering and the button head or disk having its edge bent inwardly to form a peripheral flange, over which said covering laps, of aretaining cap-plate provided with teeth passing through the covering, the toothed portion of said cap fitting within the recess formed by and abutting against the inner face of the said annular flange, substantially as described.

2. Inacoveredbutton, thecombination,with the covering and a disk or button-head having its edge bent over to form a peripheral flange, and recess at the back of said disk, over which flange the covering laps, of acylindroconical open-ended retaining-cap having its cylindrical portion serrated or toothed, said cylindrical toothed portion extending through the fabric and fitting within the recess formed by and abutting against the inner face of the said annular flange, substantially as andfor the purpose specified.

3. In a covered button, the combination of the disk or button-head a, having an annular flange, a, the pad (I, the open-ended sleeve b, fabrich, and the cylindro-conical toothed cap said parts being united, substantially as described.

4. The mode of constructing covered buttons, which consists in securing the pad and its back-plate to a metallic disk by bending the edge of the latter over the outer edge of the back-plate, so as to form a substantially cylindrical flange around the button, applying the covering and lapping the edge thereof over the flange and onto the back-plate, securing the covering by forcing the teeth of the retaining cap-plate through said coveringinside of the peripheral flange, and securing the capplate by bending the edge of the axial openingin back-plate over the corresponding edge of the cap-plate, substantially as and for the purpose specified.

In testimony whereof we affix our signatures in presence of two witnesses. I

GOTTLIEB HEIDMANN. EMIL HOTTGES.

CARL EGEN.

\Vitnesses:

GUSTAVE ALBERT OELRrcr-Is, PETER MARX.

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