Fasteners.
Year: 1890

page_text: UUMI LEID
Button Fasteners.
1, FRANKLIN AUGUSTUS SMITH Junior, Providence, Rhode Island, United States
of America, Manufacturer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:—
This invention has for its object to provide a button-fastener of new and improved
construction, wherein the main portion or body consists of a top and inclined sides,
which are adapted to receive the shank-eye of a button and to permit free movement
of the same thereon after the fastener has been secured to the fabric, the said fastener
being provided with two parallel holding-prongs, which depend from the inclined
sides and which are adapted to be forced into the material to which the fastener is to
be secured, and be clinched to the under side thereof, as hereinafter fully set forth.
Fig. 1 shows my improved button-fastener as applied to hold a button to the.
fabric; Fig. 2 an elevation of the fastener as cut from sheet metal, and Fig. 3 a
similar view thereof as formed of wire.
In carrying out my invention I cut the fastener from a strip of sheet metal, or form
it of wire of required size, to provide a top D, two inclined sides E, and two sub-
stantially parallel prongs F, which latter are sharpened at their ends to enable them
to be readily forced into the fabric to which they are to be secured."
The top and inclined sides form the main or body portion of the fastener, while
the angles at the junction of the prongs with said body portion serve to limit the
penetration of said prongs into the material, and form, in effect, bearing shoulders.
These shoulders are essential to provide for the complete penetration of the prongs
through the material before they begin to curl or bend in clinching, and thereby
prevent them from puckering or bunching the material found between said prongs,
more especially in regard to thin material. The inclined sides serve as bearings for
the upper jaw of a setting instrument, made for the purpose, to receive the pressure of
same and cause the prongs to penetrate the material with more ease and certainty, for
the reason that said pressure is brought more directly over the prongs, which is not
the case with the common form of staple-fastener. In other forms of staple-like or
two-pronged fasteners, having no determinate angles of the kind shown and designated,
the prongs begin to curl or bend, and thereby pucker or bunch the intermediate
material before said prongs are forced completely through the same.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. As an improved article of manufacture a button-fastener consisting essentially of
a main or body portion having a top and two inclined sides and of two parallel
depending prongs adapted to be forced into and clinched to the material to which the
fastener is to be secured for the purpose specified.
2. The button-fastener herein described, the same consisting of an angular crown
or arch, for the reception of the eye of a button, and two parallel attaching prongs,
having sharpened or attenuated points, said prongs being formed one at each end of
said crown or arch, and projecting downward therefrom and being of substantially
uniform size above the attenuated points as said crown or arch, substantially as herein
set forth.
Tatal hlw of Nov 1800
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W., Agent for the Applicant.