Improvements in Brooch Pins.
Year: 1890

page_text: Date of Application, 30th May, 1890
Complete Specification Left. 10th Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Brooch Pins.
I, JOHN JAMESON, of Akenside Hill, Newcastle-on-Tyne, do hereby declare
the nature of this invention, a communication to me from Mr. Charles Tuckfield,
of Albany, Western Australia, to be as follows
The ordinary method of making brooch pins is, either to construct the pin of
some homogeneous metal with an enlarged end out of which a part of the hinge is
formed, or to solder or braze to the pin an extra piece of metal out of which this
hinge part is formed. In both these methods of construction it is a very common
occurrence for the pin to break, just at the neck, and this is caused mainly by the
elasticity of the pin ending abruptly at the point of its junction with the enlarged
hinge part; that is to say, the pin can spring to a certain extent in its length but,
at the point of junction with the hinge part, its spring is restrained,.and, if subjected
to adequate pressure, it will bend at that point with a permanent set, and, in use in
this way, it is subjected to a series of bendings at one spot which frequently end in
its fracture. Now I by my invention obviate this inconvenience form the
entire pin of wire of uniform thickness, except where it is sharpened for the point;
I attach a hinge part to the body of the brooch, by soldering, brazing, riveting or
otherwise; this hinge part consists of a small tube, with an abutment at one side
or at both ends, adequate to give the pin the requisite outward spring. The bore
of the little tube is at right angles with the line of the pin when the hinge is
finished. To make the hinge, I pass the unsharpened end of the pin through the
little tube, and bend the pin at both sides of the tube so as to secure the pin in
the tube, and to place the main body of the pin at right angles with the tube, in
line with the middle of the length of the tube. The butt end of the pin may be so
bent as just to meet round the tube another part of the pin, or it may be twisted
round that other part of the pin, or secured in any other convenient way. By this
arrangement it will be seen that the pin forms its own hinge, and that its elasticity
throughout is uniform. Another inconvenience of the ordinary construction of
brooch pin is, that occasionally the wire which passes through the hinge-pieces
(being merely a straight piece of wire) falls out, and the-brooch-may be lost, by
my invention this accident is practically impossible.
Dated this Twenty-ninth day of May 1890.
JAMESON & SCHAEFFER,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Brooch Pins.
I, JOHN JAMESON, of Akenside Hill, Newcastle-on-Tyne, do hereby declare
the nature of this invention, a communication to me from Charles Tuckfield,
Albany, Western Australia, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
The ordinary method of making brooch pins is, either to construct the pin of some
homogeneous metal with an enlarged end out of which a part of the hinge is formed,
or to solder or braze to the pin an extra piece of metal out of which this hinge part
is formed. In both these methods of construction it is a very common occurrence
for the pin to break, just at the neck, and this is caused mainly by the clasticity of
the pin ending abruptly at the point of its junction with the enlarged hinge part:
that is to say the pin can spring to a certain extent in its length, but, at the point
Price 623

page_text: of junction with the hinge part, its spring is restrained, and if subjected to adequate
pressure, it will bend at that point with a permanent set, and, in use in this way, it
is subjected to a series of bendings at one spot which frequently end in its fracture.
Now I by my invention obviate this inconvenience, I form the entire pin of wire
of uniform thickness, except where it is sharpened for the point; I attach a hinge
part to the body of the brooch, by soldering, brazing, rivetting or otherwise; this
hinge part consists of a small tube, with an abutment at one side or at both ends,
adequate to give the pin the requisite outward spring. The bore of the little tube
is at right angles with the line of the pin when the hinge is finished. To make the
hinge, pass the unsharpened end of the pin through the little tube, and bend
the pin at both sides of the tube so as to secure the pin in the tube, and to place the
main body of the pin at right angles with the tube, in line with the middle of the
length of the tube. The butt end of the pin may be so bent as just to meet round
the tube another part of the pin, or it may be twisted round that other part of the
pin, or secured in any other convenient way.
By this arrangement it will be seen that the pin forms its own hinge, and that
its elasticity throughout is, uniform. Another inconvenience of the ordinary con-
struction of brooch pin is, that occasionally the wire which passes through the
hinge-pieces (being merely a straight piece of wire) falls out and the brooch may
be lost, by my invention this accident is practically impossible.
In the drawing hereto annexed the same parts are indicated by the same letters.
Fig. 1 is an enlarged end view of what. I have called the hinge piece which is
marked A in this and other figures. The enlargement of drawing is made for. the
sake of clearness. The part of the pin shewn in this figure and other figures is
marked B. Fig. 2 is a side view of Figs. 1 and 3, the abutment I have described
as taking the thrust of the pin when it is pressed home being seen at C. Fig. 4
and Fig. 5 shew different ways in which the pin may be twisted into the brooch.
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
The construction of brooches with hinges formed by a part of the brooch pin
itself substantially as described.
Dated this Ninth day of February 1891.