IMPROVEMENTS SIGNALLING APPARATUS FOR COLLIERY, RAILWAY, AND OTHER PURPOSES OR USES
Year: 1872

page_text: IN
LETTERS PATENT to Charles Parkin, of Liversedge, in the County of
York, Engine Tenter, for the Invention of "IMPROVEMENTS
SIGNALLING APPARATUS FOR COLLIERY, RAILWAY, AND OTHER PURPOSES OR
USES."
Scaled the 12th April 1873, and dated the 14th October 1872.
PROVISIONAL SPECIFICATION left by the said Charles Parkin at the
Office of the Commissioners of Patents, with his Petition, on the
14th October 1872.
I, CHARLES PARKIN, of Liversedge, in the County of York, Engine
Tenter, do hereby declare the nature of the said Invention for
"IM-
PROVEMENTS IN SIGNALLING APPARATUS FOR COLLIERY, RAILWAY, AND OTHER
PURPOSES OR USES," to be as follows:-
This Invention relates to signal bells, more especially applicable for
collieries, but also for railway stations, and other like purposes or uses,
and the improvements consist in constructing the said bell or apparatus
as follows-Upon a bed plate is a fixed stud, on which is mounted

page_text: loosely a plate wheel or disc, and on the end of the said stud is fixed an
ordinary bell. To the plate wheel or disc is also fixed another stud, on
which is mounted a tumbler carrying the bell hammer, the said tumbler
being held in position by one end of a spring, the other end thereof being
secured to the said disc. To the bed plate is fixed a stud on which is
mounted a catch lever held in position by a stop also fixed to the bed plate.
A series of lugs or projections are formed on the periphery or edge of
the said disc for the purpose of attaching the signal chain or cord for
signalling, which cords or chains may be in any desired direction or
angle.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Charles Parkin in the Great Seal Patent Office on
the 12th April 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
PARKIN, of Liversedge, in the County of York, Engine Tenter, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of October, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Charles Parkin, Her special licence that I, the
said Charles Parkin, my executors, administrators, and assigns, or such
others as I, tho said Charles Parkin, my 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, usc, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for IMPROVEMENTS IN SIGNALLING APPARATUS FOR
COLLIERY, RAILWAY, AND OTHER PURPOSES OR UBES," upon the condition
(amongst others) that I, the said Charles Parkin, my executors or
administrators, by an instrument in writing under 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
"

page_text: be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Lettors Patent.
NOW KNOW YE, that I, the said Charles Parkin, do hereby declare
5 the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, and accompanying Sheet of Drawings, that is to
say:―
This Invention relates to signal bells, more especially applicable for
collieries, but also for railway stations and other like purposes or uses,
and the improvements consist in constructing the said bell or apparatus
as follows: Upon a bed plate is a fixed stud, on which is mounted loosely
a plate wheel or disc, and on the end of the said stud is fixed an ordinary
bell. To the plate wheel or disc is also fixed another stud, on which is
6 mounted a tumbler carrying the bell hammer, the said tumbler being
held in position by one end of a spring, the other end thereof being
secured to the said disc. To the bed plate is fixed a stud, on which is
mounted a catch lever held in position by a stop also fixed to the bed
plate.
A series of lugs or projections are formed on the periphery or
edge of the said disc for the purpose of attaching the signal chain or
cord for signalling, which cords or chains may be in any desired
direction or angle.
In order that, this Invention may be more clearly understood I herein
give reference to an accompanying Sheet of Drawings, shewing a plan
view of my improved apparatus, in which A is the bed plate, and B the
fixed stud, upon which is loosely mounted the plate wheel or disc C, and
on the end of the said stud is fixed an ordinary gong bell D; E is
another stud fixed to the plate wheel or disc and moving in the slot E
in the bed plate, on which is mounted a tumbler F carrying a bell
hammer G, the said tumbler being held in position by one end of a
spring H, the other end of which spring is secured to the disc C. To the
bed plate A is fixed a stud J, on which is mounted a catch lever K, held
in position by a stop L, also fixed to the bed plate. M, M', and M², are
a series of lugs or projections formed on the periphery or edge of the disc
C for the purpose of attaching the signal chain or cord.

page_text: It will be seen that when the disc O is turned in the direction indicated
by the arrow the projection F' on the tumbler will come in contact
with the catch lever K, by which means the bell hammer G will be
raised until the tumbler has passed underneath the catch lever when it
will be returned to position by means of the spring II and strike the
holl as will be readily understood.
by the arrow the projection F¹ on the tumbler will come in contact
with the catch lever K, by which means the bell hammer G will be
raised until the tumbler has passed underneath the catch lever when it
will be returned to position by means of the spring II and strike the
hall D as will be readily understood.
In witness whereof, I, the said Charles Parkin, have hereunto set
my hand and seal, this Tenth day of April, in the year of our
Lord One thousand cight hundred and seventy-three.
In witness whereof, I, the said Charles Parkin, have hereunto sct
my hand and seal, this Tenth day of April, in the year of our
Lord One thousand cight hundred and seventy-thrcc.
CHARLES PARKIN. (L.S.)
. Signed, scaled, and delivered by the
within-named Charles Parkin, in
the presence of
WM. TASKER,
Tasker & Brierley,
Patent Agents,
Halifax, Bradford, & Blackburn.