IMPROVEMENTS IN FASTENINGS FOR SOLITAIRES, SLEEVE LINKS, SHIRT, AND. OTHER STUDS, PURSES, BAGS, AND OTHER LIKE ARTICLES
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by Joseph Pearson at the Office
of the Commissioners of Patents, with his Petition, on the 11th
September 1875.
I, JOSEPH PEARSON, of Birmingham, in the County of Warwick,
'Pattern Maker, do hereby declare the nature of the said Invention
'for "IMPROVEMENTS IN FASTENINGS FOR SOLITAIRES, SLEEVE LINKS, SHIRT, AND.
OTHER STUDS, PURSES, BAGS, AND OTHER LIKE ARTICLES," to be as follows :—
My Invention has reference to such solitaires and like articles and
fastenings as consist of two detachable or separable parts, one part
consisting of a stem and a disc or head, and the other part of a tubular
socket and a disc or head, and my said Invention consists of the improve-
ments herein-after described, in fastenings for the said solitaires and
other articles.
By my Invention the fastening together and unfastening of the two
parts of the solitaire and other articles are effected with great simplicity,
the fastening is very secure, and not liable to derangement.
I will describe my Invention as applied to a solitaire; I make at or
near the end of the stem of the front part of the solitaire a conical
shoulder or collar, and I fix in the tubular socket of the other or back

page_text: part of the solitaire a conical spring, the wide end of the said conical
spring being secured to the socket by soldering it to or closing it upon
the open end of the socket. The conical spring is made by preference
of an open jointed tube, and when the spring is fixed in the. tubular
socket in the manner described_its_bottom_narrow-end-is-free-to-
expand.
In fastening the two parts or back and front of the solitaire together
the tubulur socket of the back part is passed through the holes in the
wristband or sleeve in the usual way, and the stem of the front part is
introduced into the said tubular socket. As the conical shoulder or
collar at the bottom of the stem approaches the bottom of the socket
the said shoulder or collar expands the free narrow end of the conical
spring in the socket, and when the stem has been pushed fully home the
free end of the said spring by its clasticity snaps or contracts upon the
conical collar of the stem, and thereby securely fastens the two parts of
the solitaire together, the said fastened parts being capable of rotating
upon one another.
To disconnect the two parts of the solitaire the front part is pulled
forcibly from the back part, so as to expand the free end of the spring
and permit the conical collar on the stem to escape from it.
The fastening parts described may be so modified that the snapping
action of the spring upon the stem may take place at the top of the
socket. In this modification the wide end of the open jointed tube
constituting the spring is fastened to the bottom of the tubular socket,
and the free narrow end is situated at the top of the socket. The stem
instead of having a conical shoulder at bottom is taper from end to end,
the end furthest from the disc or head being of greater diameter. When
the taper stem is inserted in the socket its wide end expands the free
end of the spring, and after the stem has been pressed home the said
spring:contracts or snaps upon the narrow end of the stem and fastens
the two parts of the solitaire together.
I apply my Invention to sleeve links, shirt and other studs, fastenings
for bags, purses, and other articles, substantially in the manner described