IMPROVEMENTS IN VALVES OR APPARATUS FOR REGULATING THE PASSAGE AND SUPPLY OR FLUIDS
Year: 1854

page_text: LETTERS PATENT to Sydney Smith, of Hyson Green Works, near Notting-
ham, for the Invention of "IMPROVEMENTS IN VALVES OR APPARATUS FOR
REGULATING THE PASSAGE AND SUPPLY OR FLUIDS'
Sealed the 13th April 1854, and dated the 26th January 1854.
PROVISIONAL SPECIFICATION left by the said Sydney Smith at the
Office of the Commissioners of Patents, with his Petition, on the 26th
January 1854.
I, SYDNEY SMITH, of Hyson Green Works, near Nottingham, do hereby
declare the nature of the Invention for "IMPROVEMENTS IN VALVES OR APPARATUS
FOR REGULATING THE PASSAGE AND SUPPLY OF FLUIDS" to be as follows:-
This Invention consists of forming valves of portions of spheres, fitted and
ground to seats, which are also portions of spheres, such valves moving on
spherical joints or on axes, in such manner that each valve is in a state of
balance, so that when closed and the pressure of fluid is on one side, it has no
tendency to open, by reason of the state of balance, but such valve will open
with facility when acted on by an instrument in connection with a float or by
a handle or other instrument connected to the valve, the axis being the
fulcrum, or when required, to the spindle or other connection forming the
axis of the valve, as in steam or water taps, in consequence of the valve
opening one half with the flow of the fluid, and one half against the flow of the
fluid.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Sydney Smith in the Great Seal Patent Office on the 25th
July 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, 1, SYDNEY
SMITH, of Hyson Green Works, near Nottingham, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of January, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Sydney Smith, Her special licence that I, the said Sydney Smith, my
executors, administrators, and assigns, or such others as I, the said Sydney
Smith, 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, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN VALVES OR
APPARATUS FOR REGULATING THE PASSAGE AND SUPPLY OF FLUIDS," upon the con-
dition (amongst others) that I, the said Sydney Smith,. by an instrument in
writing under my hand and seal, 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 immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Sydney Smith, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
tliereof (that is to say) :-
This Invention consists of forming valves of portions of spheres, fitted and
ground to seats, which are also portions of spheres, such valves moving on
spherical joints or on axes, in such manner that each valve is in a state of
balance, so that when closed and the pressure of fluid is on one side, it has no
tendency to open, by reason of the state of balance, but such valve will open
with facility when acted on by an instrument in connection with a float or by
a handle or other instrument connected to the valve, the axis being the
fulcrum, or when required to the spindle or other connection forming the
axis of the valve, as in steam or water taps, in consequence of the valve
opening one half with the flow of the fluid, and one half against the flow of
the fluid.

page_text: Having thus stated the nature of my said Invention, I will proceed to describe
the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a section, and Figure 2 a plan of a valve constructed and
combined according to my Invention. a is a valve, the face of which is com-
posed of part of a sphere, and it fits into a seat also spherical. This valve
moves on a spherical joint b, connected to the valve a by a stem c; the
spherical joint having its bearing in a hollow or spherical bearing in the cross
bar d, as shown. By this combination and construction of parts, the valve
when pressed on will have no tendency to open, by reason of its being in a
state of balance; by it may be readily moved, notwithstanding that it is subject
to considerable pressure, by means of an arm e, fixed to the spherical joint, or
it might be to the stem or to the valve itself, according to the use to which
the peculiar valve may be applied.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that what I claim is the
combination of parts herein described.
In witness whereof, I, the said Sydney Smith, have hereunto set my
hand and seal, this Fifteenth day of July, in the year of our Lord One
thousand eight hundred and fifty-four.
Witness,
JOHN THOMPSON BREWSTER,
of Nottingham,
Solicitor.
SYDNEY SMITH. (L.S.)

page_text: LONDON, Printed by GEORGE EDWARD EYRE and WILLIAM SPOTTISWOODE.
Printers to the Queen's most Excellent Majesty 1954.