US1840285A - Method of making shirt studs - Google Patents

Description

Jan. 5, 1932. F. P. DAUGHADAY METHOD OF MAKING SHIRT STUDS Filed July 19, 1930 INVENTOR. zzgxaa ay ATTORNEYS.

t mm Patented Jan. 5, 1932 PATENT? OFFICE FRANK P. DAUGHADAY, OF PROVIDENCE, RHODE ISLAND METHOD or MAKING SHIRT srruns application and July 19,

This invention relates to an improved construction of shirt stud and method of forming the same. One of the objects of the 'in-. vention is to provide a shirt stud, the main member or body portion of which is formed from one piece of sheet stock having a head portion and a shank portion connected by a neck portion.

Another object is to provide a shoulder in 1-] the side walls of the head portion against which the edge of the gem mounting band abuts to be flush therewith;

The invention further consists in the punching of a hole into the shank portion at :1 the bend of the neck portion. the punched opening being in line with the axis of the shank portion to permit of an endways sliding motion of the lock bar therethrough.

With these and other objects in view, the

; invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a face view of the disc from which the tubular body member of the stud is formed with an integral flanged head at one end thereof.

Fig. 2 shows the tubular body member as 3: drawn from the blank by a series of drawing operations.

Fig. 3 shows the flanged head formed from the stock at the end of the tube.

I Fig. 4 shows the neck portion of the tube It? which joins the head and shank portion as having been bent at right angles to the shank portion and representing the punch by which a hole is formed at the bend in line with the axis of the tubular shank.

" Fig. 5 is a perspective view of the lock pin removed from the tubular shank.

Fig. 6 shows the gem-mounting band in section before being applied to secure the gem to the head.

Fig. 7 is a sectional view ofthe finished shirt stud, showing a gem mounted in the head by means ofthe band.

It is found in the practical construction of shirt studs of this character of particular advantageto form the main or body member 1930. Serial No. 469,062.

from sheet stock, which comprises a disc of base metal plated on one side with precious metal; and to draw this disc by a plurality of successive drawing operation into elongated tubular form with the precious metal on the outside and with a flange orhead formed integral at one end thereof to avoid the'necessity of soldering this head in position as the heat from such an operation would injure the finished surface.

It has also been found of advantage to draw up the 'flange into a shallow cup and inset the side walls of the cup to form a shoulder and to then insert this tubular shank portion into a holder, bend the tube at right angles to the shank portion and punch a hole in the end of the tube in line withthe axis of the shanlnthe punching operation serving to turn inwardly the precious metal plating over the edge of the base metal; and the following is a detailed description of the present embodiment of my invention and showing one means and method by which these advantageous results may beaccomplished:

lVith reference to the drawings, 10 designates a disc of sheet stock from which a tubular body member may be produced. This disc is usually formed of base metal having a plating on one of its faces and this disc is then drawn by a succession of drawing operations into tubular elongated form 11, as best illustrated in Fig. 2, with the precious metal on the. outer surface thereof, and-having a flange 12 formed from the stock at one end of'the tube.

This flange is thenrbent up to form a shallow cup shaped head 13, the side walls 14 of which are set'inwardly forming a shoulder 15 about the head. The bottom of the tube is then punched out as at 16', the opening being of a size less than that of the internal diameter of the tube forming an annular shoulder 17 about this opening. I

The tube is then inserted into a hole 18 and an instrument 19 is inserted into the upper endof the tube and then this upper portion is bent at right angles to the axis of the body, as best illustrated in Fig. 4.

A hole 20, substantially equal in diameter to the inner diameter of the tube, is now formed in the tube at the bend thereof, preferably by a punch 21, which method of forming this hole serves also to turn inwardly the edges 22 of the precious metal about the opening, thereby covering the edgt of the base metal about the opening. A slide bar 23 is. provided having a portion to slidably fit in the tube and having a reduced portion 24 at one end which extends out thru the small opening 16 in the end of the tube, a head or enlargement 25 is secured to thisreduced end portion and a spring 26 is inserted into the tube to act between the shoulder 27 of the bar and the inturned flange 17 atthe end of the tube to normally press this bar to extended-position thru the opening 20.

A gem 28 of any suitable style or material is mounted in this cup-shaped head and is secured therein by a mounting band 29, one edge 30 of which fits over the shoulder of the gem and the other edge 31 is rolled inwardly to engage the inset portion of the headand abut against the shoulder 15 of the head thus forming a smooth, practically uninterrupted surface to the head and the setting.

My improvedconstruction of shirt stud is verypractical and inexpensive .to manufacture,"is extremely strong and durable and is constructed without the use of solder.

' Having'thus described one illustrative em- 1 bodim'ent [of my invention and the best mode known to me for carrying out my method, I desire it to be understood that altho specific terms are employed, they are used in a generic-and descriptive sense and not for the purpose of limitation, the scope of the invention being defined and limited only by the terms of the appended claims.

I claim:

I "1. A method of making a'shirt stud part, whichcomprises the stepsof forming a tubularbod'y from a metal disc iby'drawing operations, bending the tubular body at sub stantially right angles, and punching an opening inthe'side wall of the tube at the bend and turning the outer surface of :the stock surrounding said opening inwardly.

'-" 2. A method of making a shirt stud part which comprisesthe steps of forming a-tubularbody from sheet stock, supporting portions of the tubular body and leaving an unsupported portion of the body betweensaid supported portions, bending said body at said unsupported portionto position said supported portions at an angle to each other,

and punching an opening in the side wall of the :tube at said bend. V

3. A method of making a shirt stud part -w'h'ich consists in forming a tubular body from-a metal disc by a series of drawing operations providing an integral gem mountg ing head at one end of the tube, bending the hollow body beneath the head at substantiallyright angles to the body portion thereof, punching an opening in the side wall of the tube at the bend and turning the outer surface of the stock surrounding said opening inwardly.

4. A method of making a shirt stud part which consists in forming a tubular body from ametal disc by a series of drawing operations providing an integral gem-mounting head at one end of the tube, supporting portions of the tubular body at spaced points 'therealong, bending the hollow body at an I portionsof the tubular'body at spaced points therealong, bending the hollow body at an unsupported portion beneath the head at substantially right angles to the body portion thereoflpunching an opening in the side wall of the tube at the bend and turning the outer surface of the stock surrounding said opening inwardly, andmounting a springpressed slide bar in said body portion.

In testimony whereof I ,aflix my signature.

' FRANK P. DAUGHADAY;

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