US1110091A - Staple. - Google Patents

Description

F. R. WHITE.

STAPLE.

APPLICATION FILED JAN19, 1911.

Patented Sept. 8, 1914..

1Iiiiiiiiiiillllllllllliiii H II] III! ATTORNEY FRANKLIN 3. WHITE, 01? WATERBURY, CONNECTICUT.

STAPLE.

Specification of Letters Batent.

Patented Sept. 8, 1914.

Application filed January 9, 1911. Serial No. 601,677.

To all whom it may concern Be it known that I, FRANKLIN R. WHITE, a citizen of the United States, and a resident of lVaterbury, in the county of New Haven and State of Connecticut, have made and invented certain new and useful Improvements in Staples, of which the following is a specification.

My invention relates to an improvement in staples, and more particularly to thatclass of staples which are formed from blanks cut or punched from sheet'metal, one of the objects being to so shape or form the blanks that they may be cut or punched from metal without any waste thereof, thereby reducing the cost of manufacture.

Another object of my invention is to produce an article of this kind which shall be strong and eflicient in use, and which may be used as a button fastener or for any other purpose or purposes for which similar articles are now employed.

lVith these and other ends in view, the invention consists in certain novel features of construction, as will be hereinafter fully described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of a strip of metal, showing the manner of cutting the blanks from which the staples are made. Fig. 2 is a plan view of one of the blanks. Fig. 3 is a plan view showing the staple in its first stage of formation. Fig. 3 is a plan view showing the staple in a die, preparatory to undergoing the next operation. Fig. 4 is a view in elevation showing the staple in its next stage of formation. Fig. 5 is a view taken at right angles to Fig. 4. Fig. 6 is an elevation of the finished staple, and Fig. 7 is a plan view of the same.

The manner in which the blanks are cut is indicated in Fig. 1, in which A represents a strip of sheet metal of the desired width, said strip being out along the parallel inclined lines B, by any suitable means, thus forming the blanks C, said blanks being substantially diamond or lozenge shaped, as shown in Fig. 2. By forming the blank in this manner, as described, it will be seen that all of the metal contained in the strip will be utilized. After the blank has been cut, the ends thereof are subjected to pressure by any suitable means, whereby the metal contained in said ends is pressed or crowded together to form two prongs D, the prongs being rounded and their extreme ends pointed to thereby provide prongs, tapering or cone-shaped in form, by a single operation, the central portion E of the blank remaining substantially unchanged in shape, as is shown in Fig. 3. The blank is then placed in a die F, provided with a circular recess G adapted to receive the central portion E of the blank, and recesses H, communicating with said circular recess and adapted to receive the prongs D, as clearly shown in Fig. 3 The central portion E is then subjected to pressure in any suitable manner, as for example, by striking the same, whereby the stock or metal of which it is composed will be forced outagainst the edge of the circular recess G, thus giving to said central portion a rounded configuration.

In the next stage of its formation, the blank is bent into the form shown in Figs. 4: and 5, the prongs D extending upward substantially parallel to each other, and the central portion E being curved slightly as shown.

The next and final step consists in flattening or straightening the curved central portion and simultaneously rounding and smoothing the edges thereof, whereby to form the head of the staple inits finished or completed condition, the completed article being clearly shown in Figs. 6 and 7.

It will be seen from the above description that staples consisting of but one piece of metal may be constructed, which will be very cheap to manufacture, and which will be strong, durable and capable of use for all purposes for which similar staples are employed, and in the manufacture of which I avoid any waste or loss of material from which they are made.

My improved staple is especially adapted for the purpose of securing buttons having an imperforate base to a garment. In such cases the base of the button has to be pierced by the points of the prongs in the act of securing the button in place, and an excess of strength is necessary in the prongs in order that they may have sufficient strength to support the point while it is being driven through the imperforate base of the button. This strength secured in my improved staple by making the prongs conical as explained, and prongs are thereby procured which will not be bent in the act of driving the same through an imperforate base button, which is a feature of marked advantage over staples having cylindrical prongs such as comprising a head of a single thickness of metal, and two tapering cone-shaped prongs extending at an angle from said head, the diameter of said prongs at their bases being greater than the thickness of the blank from which the staple is formed, substantially as described.

2. A staple made from a blank of sheet metal and comprising a head portion the thickness oi which corresponds with. the

thickness of the blank, and two cone-shaped prongs extending at an angle from said head portion, the diameter of said prongs at their bases being greater than the thickness of the head portion of the staple, sub stantially as described.

3. A staple made from a blank of sheet metal having the shape of a lozenge, and comprising a rounded head portion, the thickness of which is equal to the thickness of the blank, and two tapering cone-shaped prongs extending at an angle from said head portion, the diameter of said prongs at their bases being greater than the thickness of the blank from which the staple is formed, snbstantially as described.

Signed at l/Vaterbury, in the county oi New Haven and State of? Connecticut, this fifth day of January A. D. 1911.

FRANKLIN It. WHITE.

Witnesses EDNA h IAY IIEALEY, KATHARINE A. Runny.

flopies 01' this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G.

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