AN IMPROVEMENT IN SOLITAIRES AND STUDS
Year: 1876

page_text: LETTERS PATENT to Albert Willian Jones, of Camden Town, in the County
of Middlesex, and Harvey Chamberlain, of Hamsell Street, in the City of
London, for the Invention of "AN IMPROVEMENT IN SOLITAIRES AND STUDS."
Sealed the 29th December 1876, and dated the 13th July 1876.
PROVISIONAL SPECIFICATION left by the said Albert William Jones and
Harvey Chamberlain at the Office of the Commissioners of Patents on the
13th July 1876.
ALBERT WILLIAM JONES, of Camden Town, in the County of Middlesex, and
HARVEY CHAMBERLAIN, of Hamsell Street, in the City of London. "AN IMPROVEMENT
IN SOLITAIRES AND STUDS."
Our Invention relates to solitaires and studs in which the front is made detach-
able from the back for the purpose of inserting the solitaire or stud in the button-
hole, and our Invention relates to improved means of fastening the two parts
together whereby they are securely connected and may be readily attached and
detached.
According to our Invention we provide a solid pillar on the one part which is
received in a hollow or tubular pillar on the other part, of rather larger internal
diameter than the solid pillar, which has a small cross head or is formed with lugs
projecting on opposite sides and the tubular pillar is provided with an internal
collar at the top which reduces it to the exact diameter of the solid pillar, said
collar having grooves in it for the passage of the cross head or lugs which on being
turned round are received in recesses at the back of the collar, and locked or
retained therein by a spiral spring contained within the tubular pillar, or a flat spring
contained within the part to which the hollow pillar is attached and pressing
against the end of the solid pillar. To conceal the junction between the two parts
of the solitaire or stud the solid pillar rises from a countersink or cavity in which
the top of the hollow pillar is received when the two parts of the solitaire are
connected together.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Albert William Jones and Harvey Chamberlain in the Great Seal
Patent Office on the 12th January 1877.
ALBERT WILLIAM JONES, of Camden Town, in the County of Middlesex, and
"AN IMPROVE- 5
HARVEY CHAMBERLAIN, of Hamsell Street, in the City of London.
MENT IN SOLITAIRES AND STUDS."
Our Invention relates to solitaires and studs of that kind in which the front is
made detachable from the back for the purpose of inserting the solitaire or stud in
the button hole or removing it therefrom, and our Invention consists in improved
means of fastening the two parts together, whereby they are more securely con-
nected, and may be more readily attached and detached for the purposes above-
mentioned.
According to our Invention we provide a solid pillar on the one part, say the
front, which is received in a hollow or tubular pillar on the other part or back.
The solid pillar is provided with lugs projecting on opposite sides, and the tubular
pillar has an opening in the end of the exact shape and size to admit the solid
pillar and lugs. The tubular pillar is of sufficient size to allow the solid pillar and
lugs to be turned round after being passed through the said aperture, and it is
provided with an internal collar having an aperture corresponding to the aperture
above-mentioned, and having also recesses in which the lugs are received when the
solid pillar is turned round as above-mentioned, the lugs being locked or retained
therein by the action of a spiral spring contained within the tubular pillar, and
pressing against the end of the solid pillar. Instead of a spiral spring a flat spring
might be used, contained in the back or part to which the tubular pillar is attached
which would be made hollow or double to receive it as will be readily understood.
To conceal the junction of the two parts the solid pillar may rise from a counter-
sink or cavity in which the top of the tubular pillar would be just received when
the two parts of the solitaire are connected together.
DESCRIPTION OF DRAWINGS.
Figure 1 represents in section on line 1, 1; Figure 2 the parts of the solitaire
detached from one another; Figure 2 is a top view of the back part of the
solitaire Figure 3 is a similar section to Figure 1 taken in a plane at right angles
to Figure 1; Figure 4 shows a section of the two parts of the solitaire fitted together,
but not locked or secured; Figure 5 shows the same locked or secured by turning
the top or front part carrying the solid pillar a quarter round so as to bring the
lugs opposite the recesses into which they are forced by the spring.
a top or front part, and b back part of solitaire or stud; c, solid pillar fixed
to the top or front part a, and provided with a crosshead or lugs d, d, projecting
at opposite sides; e, hollow pillar fixed to bottom or back part b, closed at top by
a plate e, having an aperture f therein of the size and shape to just admit pillar c
and lugs d; g is an internal collar fixed with the hollow pillar c, just beneath the
plate e, said collar having an aperture corresponding to aperture f, and also
recesses at right angles to the aperture f, in which recesses the lugs d are received
when the pillar c is inserted and turned round; i is a metal cup or piston within
pillar e pressed upwards by a spring, also contained in said pillar. This cup
receives the end of the pillar c, and is pressed downwards when the latter is inserted
compressing spring as shown in Figure 4. When pillar c is turned a quarter
round and released the spring forces the lugs into the recesses has shown in
Figure 5, thus locking the two parts firmly together.
It will be evident that the solid pillar might be on the back and the hollow pillar
on the front part of the solitaire or stud if preferred.
Having described the nature of our Invention, and the manner of performing the
same, we declare that what we claim as our Invention to be protected by the
herein-before in part recited Letters Patent is the improved means herein specified

page_text: of fastening together the two parts of a solitaire or stud consisting of a pillar with
crossbead or lugs inserted through a corresponding aperture in a hollow pillar turned
partly round and locked or retained in recesses by a spring substantially as shown
and described.
In witness whereof, I, the said Harvey Chamberlain, for myself, and on
behalf of the said Albert William Jones, have hereunto set my hand and
seal, this Twelfth day of January, in the year of our Lord One thousand
eight hundred and seventy-seven.
H. CHAMBERLAIN. (L.S.)