US1542761A - Fastener - Google Patents

Description

June 16, 1925. v 1,542,761

F. S. CARR V FASTENER Y Filed Feb. 1. 1923 Fgg.

Patented J une y1'6, 1925.

UNTEDSTATES PATENT OFFICE;

FRED S. CARR, F NEWTON, MASSACHUSETTS, ASSIGII'ORy T O CARR FASTENER COM'- l PANY, 0F CAMBRIDGE,

MASSACHUSETTS, i A Comfort-ATIoN'A 0F MASSACHUSETTS.

,FASTENER HApplication led February 1, 1923. Serial N'o.616,292.

o all whom t may concern:` A l Be it known thatI I, FRED S. CARR, ta citizen of the United States, and a resident of Newton, in the county of Middlesex, State of Massachusetts, have invented an Improvement inFasteners, of which the following descriptionpinv connection with the accompanying drawings, is a specification, like characters on the drawings representing, like parts.

This invention pertains to improvements inv fasteners, and more particularly, though not exclusively, Ato improvementsin fasteners primarily intended for securing carpets andthe like. It is among the objects of the invention to present a superior fastener.

In ythe drawings, which show a preferred form of one embodiment of my invention, and a modification thereof: v

Figure 1 is a plan View of a carpet with the fastener attached thereto; y i Fig. 2 is a plan view on an enlarged scale of the carpet with the pile removed to show the engagement of the socket-holding prongs with the warp of the carpet;

Fig. 3 is a section on the line 3-3 of Fig. l, being partly in, elevation;

Fig. l is a planfview of the socket prior to attachment thereof to the carpet.;

Fig. 5 is a section on the line 5 5 of Fig. 3, being partly in elevation; and

Fig. 6 is a vertical section through a modiication of my invention, being partly in elevation.

Referring to the drawings and to the preferred forms of my invention selected for illustrative purposes, I have shown a stud including a head 7, neck 8 and base portion 9 sec'ured to a screw 10 entered in a suitable stud-supportingr part 11, such for instance as the floor of an automobile. The preferred form of socket illustrated includes a casing 13 containing a spring 14,-which mayV be held in place by a top plate 15 through which pass socket-securing prongsv 16, herein shown as six in number, and-top plate securing prongs 17, herein shown as two in number. The socket-securing prongs 16 are passed through the warp of the carpet 18 while Straight, andare then deflected outwardly, preferably by the suitably formed die of a press, so that `they overlie portions of the warpy of the carpet, preferably having their ends curved down- ` slots 23, 23 between the stud-receiving wardly through the warp. This prongy construction is peculiarly7V Vadvantageous because, whenv an edge ofthe carpet is pulled upwardlyfto yrelease the fastener, the `pull of the carpetV is into the curve of the prong instead of out of it, as is the case when thc prongs are deflected inwardly to engage the warp of the carpet above the socket proper. The outward curvingV of the prongs is also advantageousy in that for a given size of socket casing a wider area of carpet warp embraced within the prongs. Where the carpet has a pile,.as is usually, the case, the prongs are substantiallyvif not entirely hidden by the pile. The preferred form of spring 14 herein ill'ustrated is stamped from a single sheet of metal to provide a stud-receiving aperture 20, a continuous rim 21, slots 22, 22 between the Stud-receiv ing aperture and rim' and communicating a erture and the first named slots 22, 22. l',lhe peripheral rim of the socket casing is spaced from the socket opposite the connecting portions 24, 24 between the rim 21 of the spring and what may be termed the jaws 25, 25 so that, as the stud head 7 is entered in the stud-receiving aperture, the Spring may elongate in a direction toward the connectingportions 24, 24, while the rim may become narrower at the dimension thereof op posite the connecting slots 23, 23.

In the preferred form of my invention illustrated in Fig. 3, the stud base 9 is of substantially the same diameter as the socket casing so that when the carpet above the socket is stepped on, there will be no tendency to distort the casing and bind the spring 14.

In the modication of my invention illustrated in Fig. 6, the stud base 9 is of substantially smaller dialneter than the socket casing 13', so that the top of the stud base may pass into the stud-receiving aperture, making the aggregate thickness of therfastener from floor to carpet somewhat less in the embodiment of my invention shown in Fig. 3. Where this construction is used, I preferably throw down a Vrim from the socket casing to contact with the floorv 11 so that, when the socket is stepped on, no harmful pressure is exerted on the spring. The prongs 16 of the modification of my invention preferably spread outwardly as illustrated in Fig. 3, when engaged with the carpet. f

While I have shown and described preferred forms of one embodiment of my invention, it will be understood that changes involvingv omission, substitution, alteration and'reversal of parts, and even Changes in the mode of operation, may be made without departing from the scope of my invention, which is best defined in the following claims.

' Claims:

l. A `fastener Comprising, in combination, a stud having a head, a neck and a base, a easing presenting a stud-receiving aperture of s'ufiioient diameter to admit said base, said casing presenting outwardly thrown portions to engage the floor when said stud is entered in said socket and thereby to relieve the spring in said socket of pressure when the carpet above said casing is subjeoted to pressure.

2. A carpet fastener socket comprising a two-part easing presenting a housing for a stud-engaging spring, one part of said casing presenting integral, outthrown, carpetengaging prongs passing through openings in the other part.

3. A carpet. fastener socket comprising a base having a stud-receiving opening and an upstanding Cylindrical wall, a plurality of Carpet engaging prongs onsaid cylindrioal wall, a stud-engaging spring in said base and a Cover plate for said spring secured to said Cylindrical wall, said prongs extending above said cover plate and adapted to be bent outwardly over the Carpet web. e

4. A carpet fastener socket'Comprising a base having a stud receiving opening and an upstanding wall, a plurality of Carpe"v engaging prongs on said wall, a stud-engaging spring in said base and a Cover plate for said spring secured to said wall, said cover plate presenting openings to receive said prongs, and said prongs being arranged to be bent outwardly and downwardly over the carpet web.

In testimony whereof, I have signed my name to this specification.

FRED S. CARR.

Images