A NEW OR IMPROVED SPRING APPARATUS TO BE APPLIED TO THE BEARINGS OF THE AXLES OF PULLEYS OR DRUMS USED IN COLLIERIES
Year: 1865

page_text: LETTERS PATENT to George Elliot, of Betley Hall, in the County of
Stafford, Colliery Owner, and Samuel Bailey Coxon, of Usworth, in the
County of Durham, for the Invention of "A NEW OR IMPROVED SPRING
APPARATUS TO BE APPLIED TO THE BEARINGS OF THE AXLES OF PULLEYS OR
DRUMS USED IN COLLIERIES."
Sealed the 10th November 1865. and dated the 15th May 1865.
PROVISIONAL SPECIFICATION left by the said George Elliot and Samuel
Bailey Coxon at the Office of the Commissioners of Patents, with their
Petition, on the 15th May 1865.
We, GEORGE ELLIOT, of Betley Hall, in the County of Stafford, Colliery
Owner, and SAMUEL BAILEY COXON, of Usworth, in the County of Durham,
do hereby declare the nature of the said Invention for "A NEW OR IMPROVED
SPRING APPARATUS TO BE APPLIED TO THE BEARINGS OF THE AXLES OF PULLEYS OR
DRUMS USED IN COLLIERIES," to be as follows:-
The object of this Invention is to diminish the strain upon the pit ropes,
which are carried over a pulley or drum at the lift by the employment under
each pulley or drum bearing of a spring apparatus, consisting of a cylinder
containing a piston, to the back of which steam, air, or gas is admitted. The
piston rods are connected to the bearings, each of which is free to move in a
frame. The steam or elastic fluid is introduced by means of pipes into a pair
of steam cylinders, placed at such angle of inclination as shall be most expe-
dient, and of calculated area to overcome the weight of (at least) the empty cage
and tubs. The amount of spring can be regulated by the length of cylinder,
or by applying rests upon the slides or motion bars; the pipes are attached
to the ordinary steam pipes at or near the cylinder of the winding engine

page_text: within view of the engineman, the admission of steam being regulated by
an ordinary valve or cock. Any desired amount of pressure may be gained
under the pulley cylinders by throttling the pipes conveying the steam to the
cylinders. Instead of steam, air, or gas, water may be used, the pressure
being gained from an ordinary accumulator.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Elliot and Samuel Bailey Coxon in the Great Seal
Patent Office on the 15th November 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
ELLIOT, of Betley Hall, in the County of Stafford, Colliery Owner, and
SAMUEL BAILEY COXON, of Usworth, in the County of Durham, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of May, in the year of our Lord One
thousand eight hundred and sixty-five, in the twenty-eighth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said George Elliot and Samuel Bailey Coxon, Her special licence that we,
the said George Elliot and Samuel Bailey Coxon, our executors, adminis-
trators, and assigns, or such others as we, the said George Elliot and Samuel
Bailey Coxon, 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 vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "A NEW OR IMPROVED
SPRING APPARATUS TO BE APPLIED TO THE BEARINGS OF THE AXLES OF PULLEYS OR
DRUMS USED IN COLLIERIES," upon the condition (amongst others) that we,
the said George Elliot and Samuel Bailey Coxon, or one of us, our executors
or administrators, by an instrument in writing under our, or one of our, or
their, or one of their bands and seals, should particularly describe and ascer-
tain 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 immediately after the date of the said
Letters Patent.
NOW KNOW YE, that we, the said George Elliot and Samuel Bailey
Coxon, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer

page_text: tained in and by the following statement thereof, reference being had to
the Drawings hereunto annexed, that is to say :-
The object of this Invention is to diminish the strain upon the pit ropes,
which are carried over a pulley or drum at the lift by the employment under
each pulley or drum bearing of a spring apparatus, consisting of a cylinder
containing a piston, to the back of which steam, air, or gas is admitted. The
piston rods are connected to the bearings, each of which is free to move in a
frame. The steam or elastic fluid is introduced by means of pipes into a pair
of steam cylinders, placed at such angle of inclination as shall be most expe-
dient, and of calculated area to overcome the weight of (at least) the empty
cage and tubs. The amount of spring can be regulated by the length of
cylinder, or by applying rests upon the slides or motion bars; the pipes are
attached to the ordinary steam pipes at or near the cylinder of the winding
engine within view of the engineman, the admission of steam being regulated
by an ordinary valve or cock. Any desired amount of pressure may be gained
under the pulley cylinders by throttling the pipes conveying the steam to the
cylinders. Instead of steam, air, or gas, water may be used, the pressure
being gained from an ordinary accumulator.
Figure 1 is a side elevation, and Figure 2 an end elevation, shewing the
manner in which we carry our Invention into effect.
A, A, is a frame; B is the pulley, the axis of which is received in bearings
held in plummer blocks C, C, capable of motion in the frames D, D. The
plummer blocks are each connected to a piston rod E, E, the pistons of which
work in cylinders F, F, fixed on the frame, one on each side of the pulley;
G, G, are pipes for conveying steam or other fluid to the cylinders.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we claim the improved
spring apparatus constructed and acting substantially in manner and for the
purpose herein-before described.
In witness whereof, I, the said Samuel Bailey Coxon, for myself and on
behalf of the said George Elliot, have hereunto set my hand and seal,
this Fourteenth day of November, One thousand eight hundred and
sixty fiva
SAMUEL BAILEY COXON. (L.S.)