US525152A - Lacing-stud - Google Patents

Description

' No Model.)

A..MATH1S0N. LAGING STUD.

Patented Aug. 28, ,1894.

metallic head thereunder.

LUNITED STATES'v PATENT OFFICE. y

ARTHUR MATHISON, OF SPRINGFIELD,'MASSACHUSETTSI LACINGJSTUD.

SPECIFICATION forming part of Letters Patent No. 525,152, dated August 28, 189 4.

v APPHGR'GQD filed February 16, 1894. Serial No. 500,416. (No model.) Y

To all whom it may concern.-

Be it known that I, ARTHUR MATHIsoN, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented. new anduseful Improvements in Lacing-Studs, of which the following is a specification.

This invention relates to lacing studs and analogous fastening devices for shoes and other articles; the obj ect being to improve the construction of such objects, all as hereinafter fully set forth.

In the drawings forming part of this specication, Figure 1 is a plan view, and Fig. 2 is a front elevation of a lacing stud, constructed according to my invention, lthe covering of the stud illustrated in Fig. 1 being partly broken away to show a portion of the Fig. 3 is a sectional view of the studon line 3-3, of Fig. 1L Fig. 4 is a plan view of the metallic blank from which the lacing stud is formed. Fig. 5 is a sectional view axially through an eyelet which embodies features of thisinvention,

Fig. 6 being a plan view of the same with-ak portion of the plastic material covering the top rim of the eyelet broken away. Said iigures show the stud greatly enlarged.

Certain of the improvements herein de# scribed and shown are applicable to the heads 4 head portion, D, of a general circular form having a series of corrugations at its border; and the part, E, located between said parts, A and D, and integral with the latter, of rectangular form, and from which that part of the stud structure designated the post is formed..

In view of the foregoing description of said blank, the base of the stud, under the he'ad,

is designated by A, the metallic part of the head by D, and the post by E. y

The above mentioned corrugations are constituted by striking up in a die, from the under side of the marginal portion of the head,

and without severing or slitting the metal, suitably spaced protuberances, 10, which, of course, are hollow leaving the space, 12, beneath, and which leave at the top the intermediate depressions, 13, 13, all to the end of providing, as below described, for permanently securing to said head a covering of non-metallic plastic material.

In the manufacture oflacing studs from sheet metal, as heretofore practiced, the post, E, which constitutes the head and Vbase uniting element of the stud, has been made substantially dat on its inner surface, or that surface which receives the lacing; but by the improved manner of constructing said post, herein set forth, the said post is produced in substantiallya cylindrical form, or sofnearly approximating that shape (see dotted lines showing the elliptical form of the post in Fig. 1) that the side against which the lacing is drawn when the stud is in -use upon a shoe, or other article, practically is circular; consequently, the best conditions are presented for the durability of the lacing, and to effect other advantageous results below referred to and to obviate, entirely, the undue wear of the lacing when used against a stud having said flat lacing surface. The above mentioned substantially cylindrical form of said post is secured by providing the said intermediate rectangularly formed element of the blank, shown in Fig. 4, the extremities, 15, 15, of which central element are bent forward between the head, D, and the base, A, of the stud, thereby producing said substantially cylindrical form, as shown, and consequently forming the said convex face against which the shoe lacing is invariably drawn, which face presents no abrading surface, thus conducing to the greatest durability ofthe lac.

ing and providing such a bearing surface therefor yas conduces to a perfect freedomv of motion of the lacing without the wearing effect which is ordinarily produced by the use of a flat-sided, or sharp-edged, post.

In constructing the metallic part of the stud IOO and the head, D, is bent to bring it directly over the base, A, o1' to the position shown in Figs. 2 and 3. This position of a large portion of the post between the head andthebase of the stud toward the center` thereof, supports the head against accidental deflection, and thus preserves the'wide opening between the f head and the base.

Fig. 4 illustrates the under, or back side of the head, D, and the top of the base, A.

The metallic portion of the stud, havingl been bent to the `form -above indicated, is then 'placedona suitableplate or die on `which Y the under side of the head `of the studliesf' closely, and there is then applied tot'heouter side `ot' said head, a covering, z, of plasticr material similar to 'hardrub'berg or'o'ther well known plastic compositions which are vsof-f tened 4by heat, and said material, by the aid of a hot die 'and pressure, is molded onto they stud-head, substantially `in t'he'form showny in Figs. 2, 3, and 4, and is thereby `caused "to cover the head and to adapt itself tothefform of `said marginal upset, `hollow protuberancesf-tofenterthe intermediate depressions,

and to extend slightly beyond the edge o'f the corrugated metallic part of the headof `the plastic material, while portions of theplastic l material, assuming the form of an internal gear, embed themselves, as seen atf20 in Figs. 2, 3, and 4c, in the depressions constituted beneath the upset protuberances of the 'corru-Q Upon becomingcool, thefsaid covering, h, of plastic material, His firmly and pergations.

manently fixed'on the head, D, of the stud.

The said plastic `materiahasis `Well known,- may be made `of various colors Iaccording to` the color of the leather,or other material `on which it is to be Worn.

As shown in Figs. 2, 3, and J5 the plastic material will ow over the edge of the lcor-` rugated metallic head, land nnder'theraised j parts of the radial corrugations thus lling the spaces 12, but this material will not flow under the depressed portions 13 of the 'head as these parts 13 rest on the die. A bottom view of thecompleted head will show radial metallic ribs running from near the central postto near the periphery of the head, and between these ribs are portionsof theplastic material.

From theforegoing description of the means herein-setforthfor uniting a suitable plastic covering to the head of the stud, herein shown, it is `obvious that the same meansfmay be advantageously employed for attaching covering'layers of plastic `material onto the metal base `of buttons, and `analogous `art-icles; and in Figs. 5 and 6 the same idea of means is utilized in an obvious manner in applying and anchoring the plastic covering upon the metallic annular rim of an `eyelet which has the marginal upset indentations and intermediate depressions.

There have been, heretofore, numerous constructions, 1neans,'and methodsof afxing to lacing studs, buttons, and eyelets, a layer or body of plastic material, resembling rubber for ycelluloid to constitute the wearing face. Many of these, while ingenious, and fairly elcient after their production, are produced -by the use of expensivedies and machinery which are necessarily slow and involve mechanical operations `which practically prohibit the production of the studs, or eyelets, at a marketable 'figure;and, again, on the `other hand, many oftheplastic faced st-uds which lhave `been produced have possessed features which `rendered vthem undesirable, respecially lin pointof .a structurally weaktened metallic 'foundation 'for the plastic, and 1an inefficient capability for thefanchoring-of ltheplastic upon themetallic supportingbody therefor. But vbythe `exercise of the-,present Iinvention th'epart of the studlto receive the lplastic material 'may Abe `formed,as shown, lmost cheaply and rapidly Aand withoutweakeni'ng, 'but on the iother hand, strengthening the rim of the head; moreover, constructions of `dies for applying and setting the ,plastic may be employed `which lare, iirst, .simpler and cheaperthan any heretofore *known or used; secondly, capable of more rapid cperation than fit fis believed has been heretoforepossible, and, thirdly, `adapted to so coact with the peculiarly constructed metallic head asto insure the proper support of `the corrugated rim while the `plasticis "being set with hard pressure t'hereagainst and thereupon. This latter 'mentioned provision of having the partof the stud receivingtheplastic material tirmly supported by one member of the die `while theother die member is hard pressing the .plasticto its anchoring engage ment, `and moldingthe same to external form, and wi-thou'thaving to depend upon the rigidity of the thin imeta'l head, is very important and valuable.

`Having thus described my invention, what I claim, and desire "to secure by Letters .Patent, is-

The eyelet or stud'having a metallic 'head with 'elevations `and depressions extending outward fromnear the post to the periphery of saidmetallic'head, anda plastic Vcover eX- tending over `saidemetallic head and outside theperiphery thereof, andtilling the recesses under the elevated portions of the metal, the depressions `in the metal beingexposed, substantially as described.

ARTHUR MATHISON. Witnesses:

H. A. CHAPIN, K. I. CLEMONs.

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