US834400A - Tufting-button. - Google Patents

Description

13 i limeooeo 1' No. 834,400. 7 PATENTED OCT. 30, 1906.,

I F. A. NEIDBR.

TUFTING BUTTON.

urnwuron FILED 1212,1006.

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UNITED STATES PATENT OFFICE.

TUFT lNGu BUTTQN.

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed April 2, 1906. Serial No. 309.260.

To all whom it may concern:

' Be it known that I, FRED A. NEIDER, a citizen of the United States of America, and a resident of Augusta, county of Bracken, State of Kentucky, have invented certain new and useful Improvements in Tufting- Buttons, of which the following is a specification. I

.A tufting-button to withstand the bending and the strain to which its prongs are subjected in use should be made of a ood quality of metal, such as sheetsteel,w 'ch being comparatively expensive 'it is desirable in cutting the blanks from the stock to make as little waste metal as possible. Such button should have means for preventing the bending of the prongs inuse from taking place at the point where they join the back and should be capable of being manufactured in a few and simple steps.

In the accompanying drawings I have illustrated a tuftmg-button invented by me and the successive ste s of producing the same which answer t e deslderata above enumerated. J

Fi ure 1 is a plan view of a strip of sheet meta showing the manner of cutting therefrom the blanks for forming the tufting-buttons. Fig. 2 is a plan view of a blank. Fig. 3 is a perspective view, upon an enlarged scale, 0 a tufting-button embodying my invention. Fig. 4 is a sectional view upon line a; 00, Fig. 3. Fig. 5 is a view showin the prongs, base, and back in elevation an the cap in section. Fig. 6 is a sectional view upon line '0 c, Fig. 4, looking in direction of arrow. Fig. 7 is an elevatlon of the completed button looking at the edges of the prongs.

Referring to the drawings, in theprocess of cutting the blanks (shown in Fig. 2) from p the strip A of sheet metal a zigzag cut is made down its center, the points of the cut a proaching alternately nearer one edge a of the strip and then nearer the other ed e a of the strip, forming a series of prongs b.

' Prong b is therefore longer than prong b.

A series of transverse cuts are made in the edges a and a of strip A, the transverse cuts which register with the longer of the zigzag cuts extending into the same, so as to sever the strip into blanks consisting of prongs b, 1), arms b b b If, and uncut portions 1) for forming the conoidal base. Portion b of the blank is then rolled about a longitudinal central line, and the tapers at the inner ends of the prongs are curved inward, forming a conoidal base I) and causing prongs b b to lie flat against each other.

Arms b b 6, and b being bent outward to form the back of the blank, cap 0 is secured thereto by bendin its edges over the ends of said arms. The utton 1s then completed.

It is apparent from an examination of Fig. 1 that in this process there is no waste metal formed. The conoidal base having but one slot in it renders it especially stiff, so as not to break down in use and to prevent the possibility of any bending taking place where the arms b b ]OlI1 the base.

The formation of the back, base, and prongs in one piece which is rolled upon itself produces a button which is strong both because of its integrality and of its having been subjected .to little crystallizing pressure in manufacture.

What I claim is A tuftin -button made of two integral blanks out om sheet metal, the first blank consisting of two prongs lying fiat against each other and tapering at their lower ends into one end of an integral rolled base and radial arms bent outward from the other end of the base, and the second blank consistin of a cap turned over the ends of the radia arms.

FRED A. NEIDER.

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