Year: 1888

page_text: I, CHARLES EDWARD GITTINS, of 100 Fenchurch Street, in the City of London,
Filter Maker, do hereby declare the nature of this invention to be as follows:-
This invention has for its object improvements in ball or float valves and other
valves.
In my improved ball valve I employ a diaphragm which covers two ports formed in
a plane face. One of these ports communicates with the supply pipe and the other
with the outlet passage. On the other side of the diaphragm there is a chamber, and
a spring may be provided in this chamber to lightly press the diaphragm up to the
face. A small pipe or passage connects the chamber with the supply through a small
three way cock, and the plug of this cock has fixed upon it the arm of the ball or
float. When the ball or float is in its highest position the passage into the chamber
is open, and the chamber fills with water from the supply. The pressure of this
water then acting against the diaphragm holds the diaphragm against the ports and
closes them so that no water can pass from the supply to the outlet. When the ball
or float descends it moves the plug of the three way cock in such manner as to close
the passage leading from the supply into the chamber, and to open another passage
which allows the water already in the chamber to flow out. The pressure upon one
side of the diaphragm being thus relieved the diaphragm yields to the pressure on
the other side and allows water to flow freely from the supply to the outlet through
the ports.
For some purposes the float and float arm may be replaced by a simple
Sometimes I substitute for the diaphragm and chamber a piston working in a
cylinder-a valve of a disc like form is carried upon the piston rod-When by the
three-way cock the cylinder is connected with the supply main, the piston forces the
disc valve against the outlet passage and closes it, but when the connection between
handle.

page_text: the supply pipe and the cylinder is closed and water is allowed to escape from the
cylinder, the pressure of the supply acting against the disc valve forces it away from
the outlet, and the water then passes freely.
In some cases I substitute for the three-way cock a slide valve so arranged as to
admit water from the supply into the cylinder, sometimes on one side of the piston
and sometimes on the other, the valve then is moved in both directions, (both to open
and close) by the pressure of water upon the piston within the cylinder. In this case
the disc valve may be replaced by a slide or by a cock or valve of any sort.
Dated this 22nd day of June 1888.

page_text: I, CHARLES EDWARD GITTINS, now of St. George's House, 6 and 8 Eastcheap, in
the City of London, Filter Maker, do hereby declare the nature of this invention and
in what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :-
This invention has for its object improvements in ball or float valves and other
valves.
In my improved ball valve I employ a diaphragm which covers two ports formed in
a plane face. One of these ports communicates with the supply pipe and the other
with the outlet passage. On the other side of the diaphragm there is a chamber, and
a spring may be provided in this chamber to lightly press the diaphragm up to the
face. A small pipe or passage connects the chamber with the supply through a small
three way cock, and the plug of this cock has fixed upon it the arm of the ball or
float. When the ball or float is in its highest position the passage into the chamber
is open, and the chamber fills with water from the supply. The pressure of this
water then acting against the diaphragm holds the diaphragm against the ports and
closes them so that no water can pass from the supply to the outlet. When the
ball or float descends it moves the plug of the three way cock in such manner as
to close the passage leading from the supply into the chamber, and to open another
passage which allows the water already in the chamber to flow out. The pressure
upon one side of the diaphragm being thus relieved the diaphragm yields to the
pressure on the other side and allows water to flow freely from the supply to the
outlet through the ports. For some purposes the float and float arm may be re-
placed by a simple handle.
Figure 1 is a longitudinal section showing this arrangement. A is the inlet and
B the outlet. C is the diaphragm covering the ports A' B¹ in the inlet and outlet
pipes. Dis the chamber on the other side of the diaphragm. E is a pipe in con-
nection with the inlet, and F is a three-way cock which admits water from E into
the chamber D and allows the water from the chamber D to escape. G is a lever
by which the valve F is worked either by hand or by a float.
Sometimes I substitute for the diaphragm and chamber a piston working in a
cylinder a valve of a disc like form is carried upon the piston rod. When by the
three-way cock the cylinder is connected with the supply main, the piston forces the
disc valve against the outlet passage and closes it, but when the connection between
the supply pipe and the cylinder is closed and water is allowed to escape from the
cylinder, the pressure of the supply acting against the disc valve forces it away from
the outlet, and the water then passes freely.
Figure 2 is an elevation, and Figure 3 a longitudinal section of this arrange-
ment. Figure 4 shows the cock in another position. A is the inlet and B the
outlet-C is the valve which, in the position shown in Figure 3, is forced down
upon its seat by the pressure of the water passing by the passage E on to the
piston C. When the cock F is turned in the other direction, as shown in Figure 4,
then the pressure of the water will lift the valve C. .

page_text: Figure 5 shews a modification of this arrangement in which the pressure of the
water upon the valve tends to close it instead of to open it.
In some cases I substitute for the three-way cock a slide valve so arranged as to
admit water from the supply into the cylinder, sometimes on one side of the piston
and sometimes on the other; the valve then is moved in both directions, (both to
open and close) by the pressure of water upon the piston within the cylinder. In
this case the disc valve may be replaced by a slide or by a cock or valve of any sort.
Figure 6 shows this arrangement-A is the inlet-B the outlet-C the valve-
the piston actuating it-E the passage leading from the inlet to the slide valve F
by which it passes by the passages. F1 F2 to one side or the other of the piston C.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I would state that I
am aware that it is not new to actuate water valves by means of the pressure in the
supply pipe, and that it has also been proposed to do this by admitting water to one
side or the other of a piston connected to the spindle of the valve I therefore make
no general claims to such arrangements but what I claim is :-
1. A valve in which ports leading to the inlet and outlet passages are covered by a
diaphragm common to both, the back of which diaphragm, when the valve is closed,
being exposed to the pressure of the water in the inlet pipe.
2. The arrangement substantially as described and shown at Figure 1 of the
drawings.
3. A disc valve whose stem carries a piston of greater size than itself the piston
working in a cylinder one end of which can be put into communication with the
inlet pipe.
4. The valve substantially as described and shown in Figures 2 to 4.
5. The valve substantially as described and shown at Figure 5.
6. A valve whose stem carries a piston working in a cylinder whose ends can be
put into communication with the inlet pipe or an escape pipe by means of a slide
valve.
7. The arrangement substantially as described and shown in Figure 6 of the
drawings.
Dated this 23rd day of April 1889