US2254446A - Reinforced plastic staple button - Google Patents

Description

Sept 2, 1941- F-. G. PuRlNToN 2,254,446y

v REINFORCED PLASTIC STAPLE BUTTON AFilred Oct. 23, 1940 awww.

Patented Sept. 2, 1941 UNHTZED STATES :fr er1-.ica

RnrNroneEnrLAs'rlc ,-srilnri.EfBUTTONl Forrest G. Purinton, Waterbury, Conn., assigner to The Patent Button Company, Waterbury, Conn., a corporation-of Connecticut Applicationctober 23, 1940,S,erialfNo. 36.23441 '(Cl.` 24e-95) l 6` Claims.

My invention relates to new. and useful. improvements in reinforced plastic staple buttons. One of the principal objects of. the invention is to provide a reinforced plastic button consistingA of a plastic body or head, in which there is embedded a plate having insignia thereon, the top surface of which insignia is preferably to lie flush with the face ofthe button. Thus, by embedding the name plate, it calls for onlyone name die to make up kthese plates rather than cutting the insignia in all the cavities ina multipleV cavity die.

A further object of the invention is vto provide a button back or shell to reinforce the pre-molded plastic insert and to further provide an anvil which is to. be deposited in the hub of the shell,

after which the pre-molded plastic body is fitted within the shell and the shell rolledto thusprovide a staple button which will be relatively inexpensive to manufacture, pleasing in appearance, and efcient in service.

Still another object of -the invention-is to4 provide a buttonconsisting of-a shell, the bottomy of which isimperforate but provided with a de. pressed central ring or groovetoproperly space insignia will lie flush with the-outer surface of the plastic button head'.

Still another object of the invention isto provide a simple and efiicient reinforced plastiebutton which is providedwith an anvil for deforming the prongs of a staple fastener and-Wherein the body of the buttonmay be of plastic, the'. edge of which is framed Within the button backl or shell;

With these and other objects in view, the inventionl consists in certain new and novel arrangements and combination of parts, as will bev hereinafter more fullyl described and pointed out in the claims.

Referring now to the drawing showing-a preferredv embodiment,

Fig. 1 is an enlarged top plan view of thevcompleted button;

Fig. 2 is a vertical sectional View on the line 2-2 of Fig. 1';

Fig. 3 is a top plan vieW of the insignia plate; Fig. 4 is a sectional View taken on the line 4--4 of Fig. 3;

6. isga ,detail lof; a :staple fastening member;

Eig: 7 isfagfraginentary enlarged bottom-view` of theshell; and;

Eig: 8 iszafragrnentary,detailof thecentergof the sheiLas .Shownzni Eig- 7 Referring-nowmore particularly to; the several..

views,; and for; theA moment'tofFig.- 4, there is; shownwhat Ltermthe insignia-V plate l, which` is preferably;y madev of relativelyv thinsheetl metal` stamped to; dome'- shape;V andv also has, stampedl therein fthe insignia-in 'the forniv of raised letters 2; Inthe present-instance; I havey shown the,-r letters Pf Bg Co, although itwill be understood; that any.; brandj or-trade-mark-or'other design maybestamped-immanente.

'If-he, plate preferablyf has` a, rimA 31; about its'- periphery, whilethe;p.1ateproper is provided with.v the` small prick-point4 openings; 4- between. and adjacent ,the` letters,- and, the further prick-pointy openings,l 5; Within theislandsof the letters, as may be seen in Figs. 3 and 4.

'Ihel plastic body` or head` of the button is formed by.v placing; the pla, te lv in, an; invertedj position from that shewn-,in-,Figz 4 in-ay die cavity (notfshown), on which is depositedfa Bakelite or plastic pill.; 'I ghemold is then closed and heated;

so f'that thegplastiegwill, formthe. body. or head 6;

of the Abuttonand-will; also be forced throughv the` said; openings. 4; and 5f to .fill up4 the. spaces between the letters and the spaces within the letters xandi-thusA cover ori-embed the plate but leave the outer surfaces of the lettersflushwith` theV faceof the button;

In this manner, theplate is well embedded and' the plastic above the plate is ywellj anchoredwith,

its body.

Likewise, the islands o r enclosed spaces within the. letters-are. alsa well.. anchored to the. base.

andv willnotjallgor dll. 0r. work loose fromtheir confinedpositions.

The openings 4 and 5 above-mentioned. thus. form. passageways. through theA plate for. the

Bakelite when thela-tter is in its plastic formv and cause therplasticabovethe plate to be Well anchored with the plastic body.`

Tyhe button is;provided.with the hub l, while inflthe. bottom4 of:'the=.hub is thecentralarcuate portion- Sito-.conform to the central contour of al metalanvil: 9, asvmay be seen in-l Figs. 2 land'f. This anvil is circular-'ine outline and has `the dome-shaped centerv l (land the narrowl peripheral rimY H. 'Y i The-pre-rno-ldedplasticinsert is forced'in the button back or shell I2, which latter is provided with the upper peripheral flange I3, which flange is to be rolled, as shown in Fig. 2, and contact about the rim 3 of the plate l, which plate,

it is to be remembered, is embedded in the body 6 of the plasticbutton.

It will be understood that if desired the plastic material forming the body or head 6 may extend to the outer peripheral edge of the rim of the button and then the flange or rolled rim I 3 would contact on the upper surface of the plastic, but y I have illustrated, as may be seen in Fig. 2, the rolled rim contacting with the metal rimV of the plate I, which is the preferred form.

When the pre-molded plastic body of the button is forced down into its shell, the lower surface of the plastic hub will bear tightly against and back up the anvil 9 heretoforementioned,

dome and ring is such that the dome will extendA between the prongsV I 6 of a staple fastener I 1,

so that the points of the prongs, during the attaching operation, will be held in a properly spaced position. The prongs, in an attaching' operation, will pierce the metal of the ring I4 and, of course, will impinge against the central arcuate portion I0 of the anvil 9 and be deformed and bent to a position like that shown in Fig. 2 to thus firmly hold the button to its clothV I 8.

After the prongs of the staple are once deformed, the button cannot be removed or detached without tearing the cloth or destroying the button.

From the foregoing, it will be seen that I have provided a relatively inexpensive staple button wherein, if desired, insignia may be embedded in a plastic body and wherein an anvil is to be dropped into the button back or shell, after which the pre-molded body is forced within the button shell and the flange of the button shell rolled to tightly hold the plastic body within the shell.

It will be seen that the anvil is held tightly in position in the bottom of the shell by the plastic body, and the anvil being of a relatively hard metal will deform the prongs and jam them against the inner surface of the button shell to thus tightly hold the button in its attached position.

Buttons of this type are generally assembled in what is known as a dial press, so that it is a simple matter to drop or deposit the anvil in the shell previous to the tting of the pre-molded plastic body in the shell.

It will be understood that although I prefer, to utilize the anvil for turning the prongs of the in some cases `and I Vdo not wish to be limited to thejnclusion of the anvil.

Furthermore, by pre-molding necessary in assembling the button are reduced toaminimum,

the plastic body", with the insignia thereon, the entire operations Many slight changes might be made without departing from the spirit and scope of the invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A reinforced plastic button consisting of a metal shell, a pre-molded plastic insert within Ythe shell, the insert provided with a hub adapted to deflect the prongs of a staple fastener, and the shell secured about the peripheral rim of the plastic insert.

2. A button consisting of a shell, an anvil 1ocated in the bottom of said shell, a pre-molded plastic insert within the shell, the inserthaving a hub bearing against said anvil, and the shell secured about the peripheral rim of the plastic insert.l

3. A reinforced plastic button consisting of a metal body shell, a molded plastic insert within the shell, the bottom of the insert having a centra]` arcuate portion, a perforated metal plate having projections and depressions formed therein and embedded slightly below the surface in said plastic insert, the said plate slightly projecting beyond the marginal edge of the top surface of the plastic insert to form a rim, and the upper edge of the body shell secured to said marginal rim to tightly hold the plastic insert down within the body shell.

4. A reinforced plastic button consisting of a metal body shell, a pre-molded plastic insert within the shell, the bottom of the insert having a central arcuate portion adapted to deeot the prongs of a staple fastener during an attaching operation, a plate having raised portions thereon embedded within the plastic insert and said plate providing a marginal flange circumferentially of the top surface of the plastic insert, and the upper edge of the body shell crimped about said flange to tightly hold the plastic insert within the M n body shell.

5. A reinforced plastic staple button consisting of a body shell having an imperforate hub, an anvil resting in the bottom of the shell, a premolded plastic insert fitted within the shell, a

metal plate embedded slightly below the surface of the plastic insert and portions of the plate vis- 6. A staple button consisting of a metal body'` shell, an anvil located in the bottom of the shell,

., the said bottom of the shell being imperforate and having a depressed ring portion formed therein'to properly guide the prongs of the staple when' piercing said shell, a pre-molded plastic insert within the shell and bearing against said anvil, a perforated plate having raised portions embedded slightly below the surface of the plastic insert, and the upper edge of the body shell crimped about the peripheral edge 'of rsaid'embedded plate to hold the plastic' insert and the vanvil tightly against the ring portion formed 'in the bottom of the said hub. FORREST G. PURINTON.

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