IMPROVEMENTS IN THE Coxama mamax OR COOK TADO AND VALIG PROVISIONAL
Year: 1854

page_text: LETTERS PATENT to James Galloway, of Bolton-le-Moors, in the County
of Lancaster, Brass Founder, for the Invention of "IMPROVEMENTS IN THE
Coxama mamax OR COOK TADO AND VALIG
PROVISIONAL SPECIFICATION left by the said James Galloway at the
Office of the Commissioners of Patents, with his Petition, on the 6th
March 1854.
I, JAMES GALLOWAY, of Bolton-le-Moors, in the County of Lancaster,
Brass Founder, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN THE CONSTRUCTION OF COCKS, TAPS, AND VALVES," to be as follows:-
My Invention consists in an improved mode of constructing cocks, taps, and
valves, the orifices through which are closed with a diaphragm of mineralized
india-rubber, or any other suitable elastic material. The body of the cock, tap,
or valve is made with a concave or other shaped surface, through which the
inlet and outlet orifices are made; over this concave or other shaped surface is
the diaphragm, before mentioned, secured at its circumference by a screwed cap
or ring; when the orifices are to be closed, the elastic diaphragm is pressed
over them by a screw lever or excentric, but when the orifices are required to
be open, the pressure on the diaphragm is removed, thereby allowing it to rise
off the orifices, either by its own elasticity, or by the pressure of the fluid or
liquid passing through the cock, tap, or valve.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Galloway in the Great Seal Patent Office on the
5th September 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
GALLOWAY, of Bolton-le-Moors, in the County of Lancaster, Brass Founder,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of March, 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 James Galloway, Her special license that I, the said James Galloway,
my executors, administrators, and assigns, or such others as I, the said
James Galloway, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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
THE CONSTRUCTION OF COCKS, TAPS, AND VALVES," upon the condition (amongst
others) that I, the said James Galloway, 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 Scal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said James Galloway, do hereby declare
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 follow-
ing statement, that is to say:-
The nature of iny Invention consists in an improved mode of constructing
cocks, taps, and valves, having a flexible or clastic diaphragm for closing the
orifices through which the fluid passes.
Having thus stated the nature of my Invention, I will proceed to describe
the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 is a longitudinal section through one of my improved cocks or taps;

page_text: tap; and Figure 4 is a plan of the entire cock or tap. In these views a is the
body of the cock or tap; b, the inlet orifice; and c, the outlet orifice. I prefer
to make these orifices in a concave surface, but I do not limit myself to a
surface of that particular shape. The cap d is screwed on to the body of the
cock or tap, so as to hold securely the circumference of the diaphragm e, which
I prefer to make of mineralised india rubber; but other flexible or elastic
materials may be used instead. The screw f, furnished with a wing-head g, is
screwed into the upper part of the cap d, and below it bears on the shank of the
button h, which shank fits freely into a hole in the lower part of the screw f;
this button bears upon the diaphragm e, and the object of it is to allow the
screw to be turned round for pressing the diaphragm e on to the orifices b and c,
to close them, or the reverse, without producing a rubbing action on the dia-
phragm. The cap d is made with a projecting flange d', in which are notches
for the holding pin d², which is screwed into the body of the cock or tap;
when the cap d has been screwed down, the pin d² is screwed into its place,
thereby preventing the unscrewing of the cap. The Drawing, Figure 1, shews
the diaphragm partly raised, consequently the passage through the cock or tap
is open. When no passage is required through the cock or tap, the wing-head
must be turned so as to press the diaphragm e over the orifices b and c, as
shewn in Figure 5; but when a communication is required between the two
passages, the wing-head is turned in the reverse direction, thereby allowing
the diaphragm to rise off the orifices by its own elasticity, or by the pressure
of the fluid in the supply pipe, with which the inlet orifice is connected.
Figure 5 is an elevation of a tap or valve, which can be closed by a balance
weight, float, or lever; the only difference between this and the one above
described is, that in this instance the screw f and loose button h are dispensed
with, and the spindle with the head are used instead. To the cap d is fixed
a bracket d', which serves as fulcrum for the lever m; this lever bears on the
top of the spindle k, and it is pushed down to press the diaphragm on to the
orifices to close them, or raised up, when the passage is required open, by a
handle connected to the end of the lever, in the ordinary manner, or in any
other convenient way.
Having now described the nature of my Invention, and the manner of per-
forming the same, I wish it to be understood that I do not limit myself to the
details herein described, and that I make no claim to closing the orifices of
cocks, taps, and valves with a diaphragm of clastic material; but what I do
claim is, the improved mode of constructing cocks, taps, and valves, whereby
the elastic or flexible diaphragmn is pressed on to the orifices, and raised or

page_text: lifted off them, without being connected or attached to the spindle or button by
which the diaphragm is depressed.
In witness whereof, I, the said James Galloway, have hereunto set my
hand and seal, this Fourth day of September, One thousand eight
hundred and fifty-four.
JAMES GALLOWAY. (L.S.)