IMPROVEMENTS IN CASES FOR JEWELS AND OTHER ARTICLES."
Year: 1880

page_text: LETTERS PATENT to William Hardy, of Thistleton, in the County of
Rutland, for an Invention of "IMPROVEMENTS IN CASES FOR JEWELS AND
OTHER ARTICLES."
PROVISIONAL SPECIFICATION left by the said William Hardy at the Office
of the Commissioners of Patents on the 4th September 1880.
WILLIAM HARDY, of Thistleton, in the County of Rutland.
CASES FOR JEWELS AND OTHER ARTICLES."
"IMPROVEMENTS IN
This Invention has for its object improvements in cases for jewels and other
articles.
In order to prevent the surreptitious removal of jewel cases I provide them with
alarm mechanism of the following construction:-There is a train of wheel work
actuated by a coiled spring, and this train when allowed to run gives motion to a
hammer which strikes upon a bell. In connection with the hammer or other part -
of this alarm mechanism there is a trigger or arm, and when the box stands in its
place this trigger or arm is retained by a spring finger or armature upon which it
lies. By a suitably arranged lever the spring finger or armature is moved out of
the way when the box is lifted from its place; the train of wheelwork then
commences to run and the alarm is sounded.
When the first alarm has continued to sound for a certain time unattended to a
second and more powerful alarm comes into operation. This second alarm is a
train of wheel work similar in construction to the first, and it is set free by the
uncoiling of the spring of the first alarm train. The spring gives motion to a lever,
and this lifting a catch out of the way sets free the second alarm train. The
second alarm train works a heavier hammer than that of the first alarm train; it
may strike either on the same or on a different bell.
In connection with the arm of the first alarm train there is a retaining hook; it
is fixed upon a stem which can slide up and down in a socket or guide tube. A
spring presses the hook upwards, and it then draws the trigger or arm up with it
so as to cause it to be caught by the spring finger or armature. But when it is
desired that the alarm apparatus should be active and ready for use a steel spring
is inserted into the upper end of the socket, and then when the lid is closed down
upon the pin it is thrust in and the retaining hook is moved down by it out of the
way, leaving the trigger or arm supported only by the spring finger or detent,
and when this is displaced by lifting the box from its place the alarm commences
to sound.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Hardy in the Great Seal Patent Office on the 4th
March 1881.
WILLIAM HARDY, of Thistleton, in the County of Rutland. "IMPROVEMENTS IN
CASES FOR JEWELS AND OTHER ARTICLES."
This Invention has for its object improvements in cases for jewels and other
articles.
In order to prevent the surreptitious removal of jewel cases I provide them with
alarm mechanism of the following construction:-There is a train of wheel work
actuated by a coiled spring, and this train when allowed to run gives motion to a
hammer which strikes upon a bell. In connection with the hammer or other part
of this alarm mechanism there is a trigger or arm, and when the box stands in its
place this trigger or arm is retained by a spring finger or armature upon which it
lies. By a suitably arranged lever the spring finger or armature is moved out of
the way when the box is lifted from its place; the train of wheel work then
commences to run and the alarm is sounded.
When the first alarm has continued to sound-for a certain time-unattended-to-a-
second and more powerful alarm comes into operation. This second alarm is a train
-of-wheel work.similar in construction to the first, and it is set free by the uncoiling
of the spring of the first alarm train. The spring gives motion to a lever, and this
lifting a catch out of the way sets free the second alarm train. The second-alarm-
train works a heavier hammer than that of the first alarm train; it may strike
either on the same or on a different bell.
In connection with the arm of the first alarm train there is a retaining hook; it
is fixed upon a stem which can slide up and down in a socket or guide tube. A
spring presses the hook upwards, and it then draws the trigger or arm up with it
so as to cause it to be caught by the spring finger or armature. But when it is
desired that the alarm apparatus should be active and ready for use a steel pin is
inserted into the upper end of the socket, and then when the lid is closed down upon
the pin it is thrust in and the retaining hook is moved down by it. out of the
way, leaving the trigger or arm supported only by the spring finger or detent, and
when this is displaced by lifting the box from its place the alarm commences to
sound.
In order that my said Invention may be most fully understood and readily
carried into effect I will proceed to describe the Drawings hereunto annexed.
Figure 1 is a vertical section of a jewel case exposing the apparatus at one end,
which serves to give alarm when the case is lifted from the surface on which it
stands.
Figure 2 is a section of the lower part of the caso; this section is taken at right
angles to that represented by Figure 1.
a is a frame on which an ordinary clock train is mounted, a' being the main
spring, a² the escapement wheel, and a³ the anchor escapement. On the same axis
with the escapement anchor there is a trigger or arm band a hammer c, which,
when the escapement anchor is free to vibrate and is kept in motion by the clock
train, strikes upon the bell d; c is a retaining hook capable of sliding in the guide
socket, and it is pressed upwards by the coiled spring g indicated in dotted lines.
When the retaining hook is in the position in which it is represented in Figure 1,
it supports the trigger or arm bin such a way that the escapement anchor is
unable to vibrate. The same socket f, however, receives a loose pin h, which when
it is desired that the aların apparatus should be operative must be in its place.

page_text: The pin h, although broken off in the Figure, is sufficiently long to project from
the case, so that the lid cannot close without pressing it down. The pin h rests
upon the stem of the retaining hook e, and consequently when the case is closed
the retaining hook is kept down out of the way of the trigger or arm b. The
escapement anchor is not however immediately set free by the removal of the
hook e, for the trigger or arm is still retained by the spring finger (or, as I call it,
the "armature") i; i¹ is the spring of the armature by which it is attached to the
end of the jewel case, or to a plate or board fixed thereto; 22 is a branch of
the armature, against which the pushers h, k, act for the purpose of displacing the
armature at the proper time. 1, 2, are levers having each a fulcrum at upon the
bottom of the jewel case; they are provided with springs tending to place them
in the position in which one of them appears in Figure 2. But the end of each of
these levers abutts upon a pin m projecting through the bottom, and when the
jewel case rests upon a table or supporting surface these pins are pushed in, causing
the ends to which the pushers are connected to be depressed. The pushers
represented in their lower position in Figure 1, and when the case is lifted from
the surface upon which it is supposed to be standing the pushers will rise by
the action of the springs . The pushers in rising displace the armature i, and
the retaining hook e being already out of the way the trigger or arm b is left
unsupported. The clock work then commences to run and the alarm is sounded.
are
When once started the alarm will continue to sound even if the case be put down
again upon the table or supporting surface, for although the armature i will then
be brought back to its original position it does not again catch the trigger or arm b
until on the case being opened the trigger is lifted over the armaturo by the
upward movement of the retaining hook e. The pushers, levers, and projecting
pins are in duplicate to ensure greater certainty in action and to render it more
difficult to tamper with them.
o is a frame containing another clock train similar to the first but larger; o' is
the main spring, of the escapement wheel, and o³ the anchor escapement. On the
saine axis with the latter there is a trigger or arm p and a hammer q. When the
clock work is in motion this hammer strikes upon the two bells & and r and so
makes a loud noise. The second alarm however only comes into action after tho
first has been sounding for some time, for till then the trigger or arm p is retained
by a levers, having a fulcrum at 8', a point intermediate of its length, and at its
further end resting against the main spring a¹. Thus when this spring uncoils and
occupies more space it presently moves the lever & so far as to liberate the trigger
or arm when the second alarm becomes operative.
Figures 3 and 4 show a somewhat different arrangement.
There are two clock trains u and v, as before, of which the escapement anchors
are marked u' and v¹ respectively. Also, as before, there is on the axis of each a
trigger or arm and a hammer. When the jewel case is open both triggers or arms
are supported upon a retaining hook which is marked e and neither of the clock
trains can run. There is also an armature w, which, as respects the clock train u,
operates in all respects as already described. But in respect of the clock train v
no such armature is provided, and when the retaining hook is moved out of the
way the trigger or arm belonging to the escapement of this train falls on to the
head of a rod x, which sustains it in a position in which the clock train cannot
run. But by the lever arrangement, represented in the Drawing, the rod x is
caused to be lowered when the jewel case is raised from the table or surface on
which it has been standing, and then both alarms commence to sound. With this
arrangement the train cannot be stopped when once started, but the train v is
stopped by replacing the jewel case on the table or surface, and recommences to
sound whenever it is lifted.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I claim,--
First. The construction of cases for jewels and other articles with alarm apparatus,
arranged substantially as described.

page_text: Second. The combination in connection with the alarm apparatus of such cases
of the trigger or arm on the axis of the anchor escapement, the detaining hook,
moveable rod, armature, pusher, and lever, substantially as described.
Third. The combination in the alarm apparatus of such cases of the two
clock-trains, as in Figure 1, in such manner that the main spring of the one serves 5
to liberate the other, substantially as described.
In witness whereof, I, the said William Hardy, bave hereunto set my hand
and seal, this Third day of March, in the year of our Lord One thousand
eight hundred and eighty one.
WILLIAM HARDY, JUN³. (L.S.)
.