USRE14552E - Fred s - Google Patents

Description

F. S. CARR.

STUD AND SOCKET FASTENER. APPLICATION FILED AUG.Z4. i918.

Reissued NOV. 19, 1918.

UNITED STATES PATENT oEEioEj FRED S. CARR, OF NEWTON, MASSACHUSETTS, ASSIGNOR T CARIR FASTENER COMPANY, i

OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION 0F MAINE. d

sTUnnivosoCKE-T EAsTENER. 'A y f -f 'f Specication of Reissued Letters Patent- ReiSSued 6V. 1119, 1918.v

Original No. 1,253,349, dated January 15, 1918, Serial No. 166,157 led May 3, 1917. Application for reissue filed August 24, 1918. Serial 110.251,32).

To all whom t may concern.'

Be it known that I, FRED S. CARR, a citizen of the United States, and resident of Newton, in the county of Middlesex'and State of v Massachusetts, have invented cert-ain ,new and useful Improvements in. Stud-and- Socket Fasteners, of which the following is a specification. A

This invention relates to a stud-and-soeket fastener of the type disclosed in Letters Patent of the United States Nos. 1,038,288, and 1,181,319, vsaid fastener including a cylin-4 dricai stud member provided at its inner end with means for attachment to an inner carrying part which is one of two parts sep` l arabl)T connected by the fastener, the stud member being provided with an annular inwardly facing shoulder, and a socket member'ineluding metal plates assembled to form a jaw-confining casing, and provided with apertures to receive the stud member', andv resilient'jaivs in said casing adapted to cooperate with the shouldered stud in confiar ing the socket member in inter-locked engagement with the stud member. The construction of a socket memberof the class to which my invention relates is such'that the assemblage of the said plates attaches the socket member as a wholegto an Outer carrying partu'hich is the other of the two Aparts above mentioned; Provision is made, as set forth by the above-mentioned patents,'for preventing separation of the members by a directout-ward pull on the socket member-,and for permitting such separation by a tipping movement of the socket member in one predetermined direction onl'y. l

The chief objects of the present invention are, to prevent rubbing or chaing contact be-V tween the members and wear which would be caused b v such contact; to prevent the ma-` terial of the said outer carrying part from obstructing the entrance of the stud member into the socket member, particularly when said carrying member is of textile 'fabric such as khaki cloth, and is liable to be frayed .at the margin of a hole through which the stud member passes; and to prevent the portion of the 'carrying part which is interposed between two of the socketmember plates from slipping or stretching.

Another object of the invention is to enable unyieldin-g parts of the stud and socket members t0 resist strain tending to tip the socket member in a direction different from said predetermined direction, (and relieve the .jaws from the duty of withstanding said strain.

To these and other related ends the'invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings forming a part of this specification,

Figure 1 is a side view of a socket member embodying the invention; Y

Fig. 2 is a section on line '2 2 of Fig. 1;

Fig. 3 is aview similar to Fig. 2, and a side view of the stud member;

Fig. tis a side view 0f one of the outer plates ofl the socket member;

Fig; 5 is a section on line 5 5 of Fig. 4;

Fig. 6 is a section on line 6 6 of Fig. 4;

Fig. is a section an .line 7 7 of F ig. 1;

Fig. 8 is a sidevieu7 of the central plateJ of the socket member;

Fig. 9 is a section on line 9 9 of Fig. 8;

Fig. l() is a side view of another outer plate;

Fig. l1 is a section on line 11 11 lof Fig. 10;

Fig. 12 is a view similar to Fig. 3, showingvthe socket member tipped to disengage it from the stud member.

Fig. 13 is a view similar to Fig. 3, showing a modified construction of the socket member; and

Fig. 14 is a perspective view of the central4 i plate of the socket member` shown by Fig. 13.

an outer carrying part 16, and two outer plates 17 and18, at opposite sides of the central plate. In this embodiment ofthe' invention, the plate 17 vis at the inner side of the carrying part 16, and is called the rear plate, while the plate 18 is at the outer sideiof the carrying part, is seated on the outer side of the latter, and is called the front or clamping plate. v

The, plate 17 is provided with a narrow marginal flange 17 a (Fig. 11), on which are formed shorter prongs 19 and longer prongs 20. ,The flange 17"L is seated on one side of the central-plate 15, and said flange and the plates'15 and 17 form a casing in which are confined twp resilient wire jaws 21,- adapted to spring into engagement' with the stud shoulder 14 and lock the socket member to `the stud. The shorter prongs 19 pass through Slots 22 (Fig. 8) in the central plate and are clenched on onev side of said plate. The longer prongs 2() pass through slots 23 in the central. plate, through the carrying `part 15, and throughslots 21 (Fig. 4) in the front plate 18, said prongs being clenched on the front plate.- The several plates are apertured ,to receive the stud member 12. The aperture in the plate 15 is necessarily formed to .somewhat closely lit and embrace a portion'of the stud member, and thus accurately locate the socket member with relation to thestud member, when the mem? bers are interengaged. Heretofore, the closely litt-ing or locating aperture has had a narrow wall determined by the thickness ofthe plate in which it is formed, and the portion of the stud member enibraced by` said wall has been objectionably chafed and worn by contact therewith. To overcome this objection, I provide one of the plates, preferably the central plate 15, with a locating aperture surrounded by an 'annular curb v 25 formed internally to closely fit fa relatively wide Zone of the outer end portion of the stud member and present thereto a relatively wide bearing having practically no tendency to chafe and wear the embraced portion of ,the stud member, the

`accommodate the stud member, and constitutes a'guard or wall preventing contact be tween the margin of said aperture and the stud member. Provision is thus made for preventing frayed or raveled edges of the aperture in the carrying part from inter'- fering with the entrance of the stud meinber into the socket member.

The clenched portions ,of the shorter prongs 19 constitute dogswhich indent the clamped portion of the carrying part 16, as shown by Figs.V 2 and`8.' The front plate 18 is provided with recesses into which the portions of the carrying part displaced by the said dogs are caused to bulge. As shown by Fig. 4;, some of said recesses are formed width of `said bearing being considerably greater than the thickness of the plate 15.

Said curb and the stud zone embraced thereby are preferably tapered or `frusto-co'nical the curb constituting a 'socket or seat which is held in close contact with the embraced zone of the stud by the engagement ofthe jaws 21 with the stud shoulder and actsas a stop having a relatively wide bearing on the stud member and preventing any end shake or independent `movement of 4the socket member in the direction of the longitudinal axis of the stud member.

Another function of the curb 25 is to prevent the Amaterial of the carrying part 16 from encroaching on the space in the socket by slots 27 in the vfront plate, while the other recesses are formed by indentations or bosses 28 pressed into the plate. The said dogs and recesses act effectively to prevent edgewise movement of the carrying part 1G between the plates 15 and 18, and prevent said part from tearing at the points where the Ilonger prongs 2O pass through i-t. In this embodiment of the invention, the a1'- rangement of the curb 25 to cooperate with the outer-"end portion of the stud member requires the vlocation Aof the plate 17, which forms part 0f the jaw casing, at the inner side of the carrying `part, that the clenched portions of its longer prongs 20 are at thei outer side of the carrying part, and

would be exposed to view, unless suitably covered. To cover and conceal the prongs 20, and provide a neat and desirable external finish, l secure to the front plate 18 abacking which includes a clenching or anvil plate 30, preferably of brass, and a covering or veneer plate 31, also preferably of brass. Said plates are of crowning form,` as shown by Figs. 5 and 7, and their marginal portions bear on marginal portions of the front plate 18. The inner surface of the anvil plate` 80 is ispaced from the plate 18, so thatv when the prongs 20 are inserted in the slots 24, and forced endwise against the anvil plate, the latter acts to deect and clench said prongs, as shown by Figs. 2 and 3. The margin of the covering plate 31 is rolled over the edges of the platesl as direction` of the arrow a: (Fig. 3), the other end of the aperture being spaced from the opposite side of the stud, so that it does not resist a tippingmovement of the socket member in the'direction of the arrow y and to the position shown by Fig. 12. This form and arrangement ofthe rear plate aperture, and the form and arrangement of the jaws 21, shown by Fig. 1, whereby said jaws are adapted to coperate with the stud shoulder in permitting a tipping movement of the socket member in one direction only, and preventing. tipping movements in all other directions, are substantially as disclosed by the prior patents hereinbefore mentioned, the'rear outer plate being provided with a segmental wear-limiting lip or flange 35,

4as shown'by said patent No. 1,184,319. The

front outer plate 18fl1as an enlarged aperture 37 which receives the outer end portions of the stud member and of the curb 25.

In the embodiment of the invention show n by Figs. 13 and 14the central plate 15a is seated on the outer side of the carrying part, and is provided with a curb 25a which projects rearwardlythrough the orifice in the" carrying part and into an orifice in the outer plate 18a, which, in this case, is the rearplate and bears on the inner side of the car-- rying part. The plate 17a which forms a part of the jaw casing, is the front plate, and its shorter prongs 19ar indent the carrying part and cause portions of it to bulge into recesses 27I in the rear plate. The curb 25al in this embodiment of the invention does not prevent end shake and does not coperate like thecurb 25 with the outer end portion of the stud mem-ber, its chief function being l to exclude material of the carrying part from the space entered by the' stud member. The curb 25al is elliptical,.and is se formed and arranged that one end of its elliptical opening bears'on one side of the stud member,

.while the opposite e-nd is spaced from the opposite side of said member. The plate 17a may be provided with a supplement-al curb 25b coperating,.like the curb 25, with the outer end portion of the stud member. The clenched portions of the prongs 20a are behind the carrying part and. are therefore concealed, so that an anvil plate, such as that used with the embodiment first described, is notprovided.

As already stated, the embraced zone of the out-er end portion or head of the stud member. and the embracing curb 25 or 25b are preferably {ruste-conical. There is a direct coperat-ion between the stud member having said frusto-conical zone, the frusto-y conical curb closely fitting said zone. and the wide inner face bearing on the under side of the cylidrical stud body. and provided either by the flange 35 or by the lower side of ,the elliptical curb 25a, as I will now explain.

When the carrying part 16 is subjected to pressure. tending to t-ip it 'in the direction of the arrow ai, this pressure is resisted.` partly -by the conjoint action of the under side of the stud body and t-he said inner bearing face, the latter being pressed upwardly against the stud body, and partly bythe conjoint action ofthe upper side of the frusto-conical curb and the upper side of the frusto-conical zone cf the stud, the upper side of the curb being at the same time pressed downwardly against said `zone. A tipping 4movement of the socket member in the direction-'of the arrow is therefore resisted independently of the jaws 21, this resistance relieving'the jaws of practically all the duty of i'vithstanding strain exerted in a direction different from the predetermined direction indicated' by the arrow y. The width of the frusto-conical curb is much greater than the thickness of the plate on which the curb is formed, sp. that suicient friction is caused by the downward pressure of the upper side of the curb on the upper side of the frusto-conical stud zone to strongly resist a sliding movement of the curb on the zone in the diretcion of the arrow 'l wear of the contacting parts being eliminated. A

The carrying part 16 may be provided with a hole to receive the curb, as shown by Fig. 2, or may extend continuously across the outer end of the stud member and acrossthe outer edge of the curb 25, as shown by Figs. 8 and 12. In either case, the curb 25 prevents the carrying part from obstructing the opening' in the plate 15, which receives the outer lend portion of the stud,a portion of the carrying part shown by Figs. 3 and 12 being bulged outwardly by the curb and confined at one side of said opening.

It will be seen by reference to Figs.` 3 an`d 12, that the jaw casing formed by the plates 15 and 17 is adapted to bear onthe inner side of a flexible outer carrying part 16. that the curb 25 projecting from one side of said casing forms a recessed seat adaptedto center the stud member relatively vto the socket member, and to limit the entrance ofthe stud'meniber into the jaw casing, and that the prongs 20, adapted to penetrate the carrying part and the outer orv clenching plate 18, constitute a means for securing the jaw casing to the carrying part.v It will also be the carrying part at the points where the plicationa structure which includes the curb y a adapted to"exclude the material Vof the `'carrying part 16 fromlthe space` between the front and back plates, said lcurb Vbeing claimed here only as an element of acombi- ,nation which includes thevcurb 25b and the frusto-conical zone on the stu-d.

I claim:

1. A socket member of a fastener which includes a shouldered stud member, said socket member comprising a'central plate seated on one side of acarrying'part and forming one sideof a jaw casing, two outer plates at oliiposite sides of the central plate,

one of said outer plates being seated von the opposite side of said carrymg part, while the other outer plate is spaced from the cenf tral plate and forms the opposite side of the aw casing, and resilient jaws conned in said casing and adapted to coperate with the Vshouldered stud member, said plates being apertured to receive the stud member. and provided with means whereby -they are interlocked with eacli other and with said carrying part, one of the plates being provided with an annular curb surrounding the' shui-receiving aperture therein and having a width 'considerably exceeding the thickness of the plate, said curb being formed and arranged to closely Et and have a relatively wide bearing onpthe outer end portion of the Vstud member, and limit wear of said member and of the plate on which the curb is formed. t

2. A socket member as specified in claim l, the said curb being substantially frustoconical,l and formed to closely fit a substantially frusto-conical zone of the stud member, and coperate with'said jaws in preventing loose movement of the socket member relatively to the stud member.

3. A socket member of a fastener which includes a shouldered4 stud member, said socket member comprising a central plate seated on one side of a carrying part and 4forming one side of a aw casing, two outer plates at opposite sides of the centralplate, one of said outer plates being seated on the opposite I side of said carrying member, while the other outerplate is spaced from the central plateand forms the opposite side of the jaw casing, and resilient jaws confined in said casing-and adapted to 4coperate with the shouldered stud member, said plates being apertured to receive the stud member, one of said outer plates being provided-with shorter prongs passing? through slots in the central plate and clenched there-iy on to form dogs indenting thecarrying part,

`andwith longer prongs passing through the carrying part and-through slots in the other outer plate and clenched on thelatter, the

Ilast-mentioned outer plate being provided with recesses-Which receive the indented p0rtions of the ,carrying part.

4. A socket member ofy a fastener which includes a shouldered stud member. said socket member comprising a central plate seated on one side of acarrying part and `forming oneside of a j aw. casing, a rear outer plate seated on the central plate and forming therewith a jaw-confining casing, resilient jaws in said casing adapted to cooperate lwith said stud, a front plate, said rear plate being provided with prongs passing throughthe carrying part and through slots in the front plate, and a'n anvil plate secured to the said front plate and adapted to clench and conceal said longer prongs.

5v. In combination, a stud member having a cylindrical body, a frusto-conical zone at the outer endpf 'said body, and an inwardly facing shoulder between said zone and the,AV

cylindrical body, and a socket member comprising plates having apertures receiving said stud member and formed to permit a tipping movement of the socket member in one direction, shoulder-engaging jaws confined between two of said plates, and wear limiting means independent of said jaws co-.

operating with the stud member to resist a tipping movement of the socket member in another direction, said means comprising a wide segmental inner face on one of said plates contacting with the under side of 'the stud member body, and a wear limiting frusto-conical curb formed on and projectmg outwardly from another kplate and closely embracing said zone, said curb having a width considerably exceeding the thickness of the plate on which it is formed.

6. In a stud and socket fastener, in combination, a studmember attachable at its inner end to an inner carrying part, and having an inwardly facing shoulder between its inner and outer ends, and a socket member comprising a jaw casing formed to bear on Vthe inner side ofan outer carrying part, and having a stud-receiving orifice in its inner side permitting the insertion of the study member, a recessed seat at its outer side formed .to center the outer end of the stud member `and constituting a stop adapted to -limit the entrance of the stud member into the casing, resilient jaws in said casing adapted to yieldingly engage the stud shoulder and confine the outer end of the stud member against said seat, andv means including a clamping plate adapt-ed to be heated on the outer side of the flexible carrying part, and prongs adapted to connect said clamping plate with the jaw casing and to penetrate the outer carrying part, for securing said casing to the said carrying part and clamping plate, the limitation of the entering movement of the .stud member by said recessed 'seat permitting the employment of. an outer carrying part extending continuously across the said seat and across the outer end of the stud member, and adapted to resist strains tending to tear the material at said prongs.

7.5A stud and socket fastener comprising a stud having a reduced neck definino a head and a socket comprising a chamer having front and rea-r walls, resilient meansv in said chamber for engaging the neck, said rear'wall having an opening to receive the studeccentrically extended on one side and said front wall having an inwardly opening recess having a broad surface fitting said head and alined with said openin'g opposite said one side. i

8. A fastener as defined in claim 7 wherein the recess is formed by a flange struck from said-front wall. A

9. A fastener comprising a stud and a socket comprising a chamber having front and rear walls and aw means in the cham# ber, said rear wall'having an elongated opening to receive thestud provided at one end with a` flange extending lengthwise of the stud for engagement therewith and saidfrontwall having'an inwardly opening recess having a broad surface fitting said head, the surf-ace of said recess forming substantially an alincd continuation of said flange at said one end.

lO. In combination with a carrying member, a socket positioned on one side thereof having front and rear walls, said rear wall being apertured substantially to receive the stud, stud-engaging means carried by the socket and means for securing the socket4 marginally to the member without substantial impairment of the continuity of the latter, said front wall having aconcave recess receiving the head of said stud and limiting penetration thereof.

11. In combination with a carrying member, a socket positioned on one side thereof.

having front and rear Walls, Ysaid rear wall -being apertured substantially to receive the stud, stud-engaging means carried by the socket, said front wall being embossed to provide an inwardly concave recess to re ceive the head of said stud and limit penetration thereof, a plate on the opposite side `of the carrying member having an opening adapted to receive the embossed portion of said front wall and spaced fastening means for securing together said plate and sockel; without substantial impairment of the carrying member.

l2. A socket for fasteners comprising front and rear walls, said rear wall being.

apertured to admit a stud, stud-engaging means between said walls, said front wall having a .concave recess to receive the stud and limit penetration thereof and spaced fastening devices adjacent the margin of the socket for securing it to a carrying member.

13. A socket for fasteners comprising front and rear Walls, 1said rear'wall being apertured to admit a stud, stud-engaging means between said walls, -said front wall being embossed to provide an inwardly facing concave recess to receive the stud and limit penetration thereof, in combination with an annular plate adapted to surround the embossed portion and spaced fastening devices for securing together' socket and plate.

14. A socket for fasteners .comprising a.

`central plate and a rear plate collectivelyv forming a jaw-receiving chamber adapted to be located at one side of a carrying mem-' ber, said rear plate having prongs passing through said central plate and clenched thereon and a front plate adapted to lie on the other side of the carrying member having recesses opposed to the Vclenchedprongs, and means to secure together said front plate and the other plates.

l5. In a fastener, a socket'comprising a chamber adapted to lie on one A side of a carrying member, stud-engagingemeans in the chamber, prongs associated with said chamber, a' Washer plate adapted to lie on the other side of the member on which the prongs are clenched and an imperforate cov ering plate having margins bent over the washer.

16. In a fastener, a socket comprising a chamber adapted to lie on one side of a carrying member, studengaging means in the chamber, prongs associated with said chamber, a Awasher plate adapted to lie on the other side of said member and having openings to receive theprongs anda cover plate for said washer shaped to engage and bend over said prongs when they are thrust lthrough said openings.

Cyl

chamber adapted to lie on one side of :1 carrylng member, Stud-engaging means 1n the chamber, prongs associated with SuidV chamber, an element adapted to lie on the other side of the carrying member having one face thereof irnperforate, the other face having, openings to receive the prongs, the

member being shaped to bend over and cleneh said prongs when they are thrust into said openings.

In testimony whereof I have affixed my signature.

FRED S. CARR.

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