uprovements, in or relating to water valves and the like.
Year: 1898

page_text: .
uprovements, in or relating to water valves and the like.
I, JOHN JONES, of 40 Sydney Street, Chelsea, in the County of Middlesex,
Sanitary Specialist, do hereby declare the nature of this invention to be as
follows:-
This invention relates to valves such as are used for cisterns and the like, in
which the liquid to be delivered is controlled by a plunger which seats itself on
the end of the supply pipe; in many of these valves it has been customary to
cause a reciprocating spindle to press the central portion of a flexible disc or
diaphragm on to the end of a supply pipe immediately in line with it, the disc
as a whole serving to separate the space into which the water issues by way
of the supply pipe from another space in the portion of the valve casing which is
above the diaphragm, and which forms a guide for the reciprocating spindle.
Moreover, the circumference of the disc acts as packing for the division between
the upper and lower parts of the valve shell or casing.
With valves of this class it has been found that although the plunger operates
as desired to force the central portion of the disc into contact with the supply pipe,
yet the plunger in receding is not always followed by the diaphragm, which sticks
fast at the end of the supply pipe. It is the object of this invention to ensure
that the plunger and diaphragm shall always move in company; for instance the
plunger may extend through the diaphragm and be provided at its inner end with
a facing which is adapted to make a tight. joint with the end of the supply pipe;
and is so attached to the end of the reciprocating spindle that when the latter
recedes it cannot fail to bring the facing with it; in this construction the facing
may conveniently be held by an inturned flange formed on the lower end of the
plunger or on an attachment thereof, the diaphragm being gripped tightly between
flanged portions of the plunger so that no liquid can get past it, and consequently
no liquid can get out of the upper part of the casing of the apparatus. In certain
cases the central portion of the disc or diaphragm may be used as the valve,
provided that it is connected to the spindle in such a manner that it cannot fail
to move therewith; for instance, a screw may be passed through the centre of the
diaphragm into the spindle so that the head of the screw and the end of the spindle
grip the diaphragm tightly all round the central hole and prevent the leakage
of fluid therethrough, whilst ensuring that the central part of the diaphragm shall
always move in company with the spindle.
Doted this 4th dor of January 1900

page_text: Improvements in or relating to Water Valves and the like.
.
I, JOHN JONES, of. 40, Sidney Street, Chelsea, in the County of Middlesex,
Sanitary Specialist, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
This invention relates to valves such as are used for cisterns and the like, in which
the liquid to be delivered is controlled by a plunger which seats itself on the end of the
supply pipe; in many of these valves it has been customary to cause a reciprocating
spindle to press the central portion of a flexible disc or diaphragm on to the end of
a supply pipe immediately in line with it, the disc as a whole serving to separate
the space into which the water issues by way of the supply pipe from another space
in the portion of the valve casing which is above the diaphragm, and which forms
a guide for the reciprocating spindle. Moreover, the circumference of the disc
acts as packing for the division between the upper and lower parts of the valve
shell or casing..
. With valves of this class it has been found that although the plunger operates as
desired to force the central portion of the disc into contact with the supply pipe,
yet the plunger in receding is not always followed by the diaphragm, which sticks
fast at the end of the supply pipe. It is the object of this invention to ensure that
the plunger and diaphragm shall always move in company.
In the accompanying drawings
Fig. 1 is a longitudinal central section of a valve constructed according to this
invention.
Fig. 2 is a section on the line 2-2 of Fig. 1 ; and
Fig. 3 shows in perspective a central section of a modified form of plunger.
Like letters indicate like parts throughout the drawings,
One part A of the valve casing is to be attached to the other part B, by means of
screws C. The part B of the casing is provided with a chamber D with which the
supply pipe and delivery pipe communicate. A rubber or other flexible
diaphragm G is inserted between the parts A and B of the casing, and forming
a water-tight joint between the flanges of the two parts and also serving to prevent
the escape of the liquid from the part B into the part A. The plunger H may
extend through the diaphragm G being provided at its inner end H¹ with
a facing H² adapted to make a tight joint with the end of the supply pipe E which
projects within the chamber D. The facing H2 may conveniently be held by an
inturned flange formed on the end H¹ of the plunger or it may be held on the same
by a flanged collar Hs. The end H¹ of the plunger H would, in this latter case, be
threaded to receive the flanged collar which is adjustable on it so that the
diaphragm G is gripped tightly between the collar and a shoulder or flanged
portion H of the plunger, and no liquid can escape between the diaphragm G and
the plunger H into the upper part of the valve casing A.
This construction may be modified so that the centre of the diaphragm G may
be used to press direct upon the projecting end of the supply pipe E.
In this case
the diaphragm might be attached to the reciprocating plunger H by a screw I
passing through the centre of the diaphragm G into the plunger or spindle H so
that the head of the screw and the end of the spindle grip the diaphragm tightly
all round the central hole and prevent leakage of fluid therethrough, whilst
ensuring that the centre part of the diaphragm shall always move in company with
the spindle H.
The plunger H may be reciprocated by any convenient means such as the lever J
pivotted at K and engaging with a slot L in the end of the spindle.

page_text: It will be understood that the form of valve casing may be conveniently modified
to suit the purposes for which the valve may be required and that the facing H2
may be held in place and the diaphragm attached to the plunger by other means
than those specified.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. In a water valve or the like having a plunger with or without a facing such
as H² the employment of a diaphragm such as G attached to the plunger for the
purpose described.
2. The complete water valve substantially as described or illustrated in Figure 1
or in Figure 3 of the accompanying drawings.