US1577079A - Button - Google Patents

Description

March 16 1926.. 1,577,079

-F. `N. Ross er AL BUTTN med nec. s, 192s is prelierably termed by punching or indent-.i1 the center, which is the cheapest and cpiicket way to produce them. The button back formed with a slender' tubular neck g. and is provided with the turned out flange le. to provide a gripping surface so that the fabric may be clinched between this tlange and the tack head, as shown in Fig. The tack used is preferably a two-prong tach shown in liig. i, the points ot said tack being sloping as at i to provide a surface for engaging the struck-out anvil center. lilith this construction it is impossible to jam the tack and button and the prongs will always be turned over and torccd out within the button head between thc trout and back por tions of the button head.

In Fig. 2, we show the anvil die which is used to support the but-ton head during the clinching operation. This die is provided with a shoulder m which supports the button head at its periphery. The die a supports the tack in the usual manner and when these two dies come together, the button head and tack are clinched together', pinching the fabric 0 between the tack head and the i'lange z..

In Fig. S we show a button hole fr which Vis .termed in a piece ot fabric. The button hole being :termed with an enlarged portion at one end designated s. These button holes are uniptorm in size and to prevent tearing oi the same it is necessary that the neck ot the button should conform as nearly as possible to the size ot the enlarged portion s ot' the button hole. The old style button with the large neck will spread the button hole and tends to tear the same or break the stitches, thus allowing the Vbutton hole to become enlarged so that in time it will not hold the button. Our improved construction ailords a relatively slender .neck which avoids all this trouble.

We are aware that itis not new to use an anvil in a button which turns the prongs ot a tack button outwardly. Our improvement resides in the design and assembly ot the button elements so as to accomplish two main i'catures. The back ot the button, as already described, has a relatively slender neck` while most ot the button backs of the prior art will be t'ound to have relatively large diameter necks. 'lliese prior art buttons have the cloth-clinching iangc at the end o'tl the neck turned inwardly and consequently the necks have to be oi relatively `large diamete and very oit'tcn an additional filler member has to be provided in the cnlargcd neck to till ont the empty space and also art as a guide for the tack prongs. le so :toi-1n our button back that the neck is of subst-antiallyY the saine inside diameter as the shank ot the tack so that it acts as an accurate guide tor the tack onto the anvil. Furthermore, it very much reduces the diameter of the neck, affording the slender neck which is so desirable for preventing the distortion oit the buttom hole as explained above. Vile are able to secure these useful results by reason of so forming this button back that the clinching liange la. is turned outwardly.

The other feature that we refer to is the use of a relatively strong bridge anvil which extends substantially to the edges of the button front. The button iront is ordinarily a brass or bronze stamping which has printed matter stamped on the face of the button front before the same is assembled onto the button. As already explained, ordinarily this printed matter is only stamped along the periphery or outside of the button leaving a vacant spot in the center to receive the anvil of the die ol" the ma chine when the tack is clinched in place. lilith our improved construction the anvil is a relatively strong member; it extends clear out to the edges ort the button front so as to be able to rest on the shoulder m in the anvil die as already explained. The center ot the die is arranged to turn the prongs` outwardly; this keeps the bending stresses ot the prongs on the anvil towards the outside ot the anvil where it is better able to resist the same because near the point ol" support on the die. This permits the center ot the anvil dic ot the machine to be recessed so that the embossed printed matter may lie on the recess. This construction as already stated, permits printed matter to appear straight across the face ot the button, front and makes a very much better and neater appearance.

That we claim is:

1. In a button, the combination ot' a button front ol relatively thin gauge flexible material, a button back provided with a relatively long` slender tubular neck portion, an anvil contained within the button tt'ront, said button 'trent button back and anvil, se cured together to torni a hollow button head with a neck, and a tack having a solid stem portion .split to provide a pair ot prongs, said tubular neck forming a guide ttor the rectilinear movement of the tack during the clinching operation, said prongs engaged within the hollow button head to reinforce the liront.

In a button, the combination ol1 a butt0n front ot relatively thin `flexible material, a button back provided with a relatively long tubular neck having a relatively small diameter and also provided with a cup-shaped body portion adapted to lit into the button itront, an anvil having a diameter approximating the diameter ot the button front and arranged to be clamped between the rim of the cup-shaped body portion ot' the button back and the button 'tront to provide a space between the anvil and the bottom of llo the cup-shaped 'body portion ofthe button back, and a tack having` a relatively long solid stein portion split longitudinally to forin a pair of prongs, said neck forming;y a relatively long guide or the rectilinear movement of the tack during the clinching operation, the points of said prongs ai-` ranged -to be turned over by the anvil and wedged in the space'between the anvil and the button back. 10

In testimony whereof Ythey have aixed their signatures.

FREDERICK N. ROSS.

IRA A. LETHCO. Y

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