AN IMPROVED SIGNAL BELL
Year: 1856

page_text: LETTERS PATENT to George Gulliver and John Goldthorpe, of Barnsley
in the County of York, Ironmongers, &c., for the Invention of "AN
IMPROVED SIGNAL BELL."
Sealed the 8th August 1856, and dated the 14th February 1856.
PROVISIONAL SPECIFICATION left by the said George Gulliver and John
Goldthorpe at the Office of the Commissioners of Patents, with their
Petition, on the 14th February 1856.
We, GEORGE GULLIVER & JOHN GOLDTHORPE, of Barnsley, in the County
of York, Ironmongers, &c., do hereby declare the nature of the said Invention
for "AN IMPROVED SIGNAL BELL," to be as follows:-
Our improved signal bell is shewn in the accompanying Drawings. A, A,
is a plate to which the various parts are secured; B, is a bell; C, a hammer;
D is a cranked lever, with a trigger at d for working the hammer.
E, E, E, levers for working the trigger; e, shewn in dotted lines is a spring,
pressing against the short arm of the lever D, for forcing down the trigger to
catch the tail of the hammer; the trigger is raised and sets free the hammer,
by the short arm of the lever coming against the stop g. The trigger may be
returned to the position shewn in the Figure by a spring, or by drawing one of
the levers E, E, E. The dotted lines shew. the position of the parts when the
hammer has been released.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Gulliver and John Goldthorpe, in the Great Seal
Patent Office on the 14th August 1856..
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, GEORGE
GULLIVER and JOHN GOLDTHORPE, of Barnsley, in the County of York, Iron-
mongers, &c., send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of February, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said George Gulliver and John Goldthorpe, Her special licence that we,
the said George Gulliver and John Goldthorpe, our executors, administrators,
and assigns, or such others as we, the said George Gulliver and John
Goldthorpe, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make; use,
exercise, and yend, within the United Kingdom of Great Britain and, Ireland,
the Channel Islands, and Isle of Man, an Invention for "AN IMPROVED
SIGNAL BELL," upon the condition (amongst others) that we, the said George
Gulliver and John Goldthorpe, our executors or administrators, by an instru-
ment in writing, under our, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause 'the same to be filed
in the Great Seal Patent Office within six calendar months next, and imme-
diately after the date of the said Letters Patent.
:
NOW KNOW YE, that we, the said George Gulliver and John Goldthorpe,
do hereby declare the nature of our said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement. thereof, reference being bad to the Drawings
horeunto annexed, that is to say:-
Our Invention consists in a new. arrangement of parts for forming,
signal bell, and in a new form and action of lever for working the hammer..to
'sound the bell.
In the accompanying Drawings we shew the manner in which our signal
bell is constructed.
Figure 1 is a view of the apparatus complete; Figure 2 shews the form of
the lever for working the hammer, and the position it occupies before; and

page_text: Figure 3 shews its position after the stroke. A, A, is a plate to which the
various parts are secured; B is a bell; C, a hammer; D, spring at back of the
hammer; E, stud for preventing the hammer being thrown too far forward;
F is a cranked lever, with a trigger at G for working the hammer; H, H, are
levers for working the trigger; I, stud, about which the cranked lever F is free.
to move as a centre, passing through an aperture or collar made for its
reception, and for connecting it to the levers H, H. Upon one of the arms of
the lever H, H, being pulled in the direction of the arrows, the cranked lever
is drawn back together with the tail of the hammer, until the short arm of the
lever comes against the stop L, when the trigger is depressed, the hammer
released, and the bell struck. Upon the lever H, H, being released, a weight
M, upon an arm of the lever, restores it to its original position, and the spring
K (shewn in dotted lines in Figure 1) pressing against the tail of the cranked
lever F, forces up the trigger, and engages the tail of the hammer. Instead
of the weight M a spring or other equivalent may be adopted.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we do not limit ourselves.
to the precise shape of the signal bell shewn, as the form may be varied to suit
the different purposes for which it might be required; but we claim the general
arrangement of the signal bell herein-before described, particularly the
construction and method of action of the cranked lever for actuating the
hammer of the bell.
In witness whereof, we, the said George Gulliver and John Goldthorpe,
have hereunto set our hands and seals, this Eighth day of August,
One thousand eight hundred and fifty-six.
GEORGE GULLIVER. (L.S.)
JOHN GOLDTHORPE. (L.S.)
GEORGE GULLIVER. (L.S.)
JOHN GOLDTHORPE. (L.S.)