Improved Means for Supplying Water to Water Closets and the like.
Year: 1895

page_text: Date of Application, 12th July, 1895
Complete Specification Left, 11th Apr., 1896-Accepted, 11th July, 1896
PROVISIONAL SPECIFICATION.
Improved Means for Supplying Water to Water Closets and the like.
We, GEORGE HENRY JENNINGS, SIDNEY JENNINGS, and JOHN MORLEY, all of
Palace Wharf, Stangate, Lambeth in the County of Surrey, Sanitary Engineers, do
hereby declare the nature of this invention to be as follows:-
This invention has for its primary object a water closet whose pan is emptied
by syphonic action and which is flushed directly from the water supply pipe
in place of from a flushing cistern as is usual.
For this purpose a valve is placed on the supply pipe giving an afterflush delivered
gradually enough to prevent the continuance of the syphonic action.
A valve such as that described in the Specification No. 638 of 1889 but modified
by increasing its travel might be employed but it is preferred to use a new form
of valve which forms a special feature of this invention.
This valve serves the double purpose of supplying an afterflush such as is described
above and of preventing waste of water, only a fixed quantity being delivered
whether the pull handle or other means by which valve is operated be held or
released.
This valve somewhat resembles that described in the Specification No. 638 of
1889 but it has two diaphragms instead of one and preferably three openings and
seats instead of two. Although the valve will work in any position we will for
convenience of description assume that the spindle is vertical and is pulled upwards
to open the valve.
The spindle is divided into two parts working telescopically on one another each
part being fixed to one of the diaphragms. Loose upon the lower portion of the
spindle are two annular plates each having one of the seats on its upper face
and a packing ring on its lower face. The third seat is fixed in the shell of the
valve beneath the lower plate and the third packing ring is upon the under side
of a boss on the spindle above the upper plate. The inner and outer diameters
of the lower plate are larger than the corresponding diameters of the upper plate.
When the spindle is pulled up the first part of the motion raises the packing ring on
the boss off the seal on the upper plate uncovering the small central hole in it allowing
the water to flow down so somewhat equalising the pressures in the inlet and outlet
pipes thus rendering it easier to complete the opening of the valve. After a time a
projection or shoulder on the spindle comes against the underside of the upper plate.
which is then lifted by the spindle so uncovering the central opening in the lower plate
and increasing the flow. Lastly another projection on the spindle comes beneath the
lower plate and lifts it off its seat in the shell thus fully opening the valve.
Similarly the valve is gradually closed the movements of the parts being reversed.
The inlet is connected by a small passage (the size of which can be regulated by
a cock, both with the space between the two diaphragms and the space above the
upper diaphragm. The latter space is also connected to the inlet by a larger
passage on which is a non-return valve working outwards.
When the upper part of the spindle is pulled up the upper diaphragm which
is fixed to it forces the water above it out through the larger passage past the
Bon-return valve into the inlet. The upper diaphragm carries with it the lower
diaphragm because since the inlet into the space between them is small, water.

page_text: cannot be sucked in quickly and the lower portion of the spindle being fixed to
the lower diaphragm is also raised and the valve is opened as above described.
If the upper part of the spindle be released the valve does not close until the
upper diaphragm has been forced down by the water which slowly enters above
it by the small passage and if the upper part of the spindle be kept pulled up
the valve will close in just the same time for in this case the water will flow
through the small passage into the space between the diaphragms and force them
apart. The lower portion of the spindle carries a disc which being exposed to
the flow of the water tends to pull the spindle downwards.
In order to prevent external leakage the upper part of the spindle passes through
a double stuffing box the space between the two packings being connected by a
passage to the outlet. The outlet from the space above the upper diaphragm in place
of leading to the inlet may lead to the outlet. In this case the spindle is also
made in two parts the top one being hollow and opening into the above described
passage in the stuffing box. The lower end of the top part abuts against an
elastic seat at the upper end of the bottom part normally closing the outlet, but
when the spindle is pulled up the hollow part is raised off this seat (there being
a small amount of play between the two parts to allow of this) and the water above
the diaphragm is forced out through the hollow of the spindle.
The closet to which these valves are preferably applied are of the type described in
the Specification No. 17853 of 1892. The valve is so placed that when it is fully
open the flow of water is sufficient to seal the air inlet to the top of the syphon but
when it has partially closed as above described the flow into the pan is not sufficient
to seal the air inlet so that the vacuum is broken and the syphonic action stopped,
the afterflush therefore is retained in the pan.
The above described valves are also applicable to other closets.
D
1
G. H. JENNINGS.
SIDNEY JENNINGS.
JOHN MORLEY.
improve for supplying water to water closets and the like.
We, GEORGE HENRY JENNINGS, SIDNEY JENNINGS, and JOHN MORLEY, all of
Palace Wharf, Stangate, Lambeth in the County of Surrey, Sanitary Engineers,
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 has for its primary object a water closet whose pan is emptied
by syphonic action and which is flushed directly from the water supply pipe in
place of from a flushing cistern as is usual.
For this purpose a valve is placed on the supply pipe giving an afterflush
delivered gradually enough to prevent the continuance of the syphonic action.
A valve such as that described in the Specification No. 638 of 1889 but modified:
by increasing its travel might be employed but it is preferred to use a new form
of valve which forms a special feature of this invention.
This valve serves the double purpose of supplying an afterflush such as is described
above and of preventing waste of water, only a fixed quantity being delivered whether
the pull handle or other means by which valve is operated be held or released.
This valve somewhat resembles that described in the Specification No. 638 of 1889
but it has two diaphragms instead of one and preferably three openings and seats
instead of two. Although the valve will work in any position we will for convenience
of description assume that the spindle is vertical and is pulled upwards to open
the valve.

page_text: Figure 1 is a longitudinal section and Figure 2 a transverse section. In Figure 1
the valve is closed and in Figure 2 open.
The spindle is divided into two parts a a¹ working telescopically on one another
each part being fixed to one of the diaphragms bbl. Loose upon the lower
portion a¹ of the spindle are two annular plates c c' having seats d d on their
upper faces and packing rings e e² on their lower faces. The third seat d² is
fixed in the shell of the valve beneath the lower plate c¹ and the third packing
ringe is upon the under side of a boss on the spindle a¹ above the upper plate..
The inner and outer diameters of the lower plate care larger than the corre-
sponding diameters of the upper plate c.
When the spindle a is pulled up the first part of the motion raises the packing.
ringe on the boss off the seat d, on the upper plate c uncovering the small
central hole in it allowing the water to flow down so somewhat equalizing the
pressure in the inlet and outlet pipes thus rendering it easier to complete the
opening of the valve. After a time a projection or shoulder f on the spindle a¹
comes against the underside of the upper plate c which is then lifted by the
spindle so uncovering the central opening in the lower plate c' and increasing
the flow.
Lastly another projection fl on the spindle comes beneath the lower plate c¹ and
lifts it off its seat d² in the shell thus fully opening the valve. Similarly the
valve is gradually closed the movements of the parts being reversed. The inlet
is connected by a small passage 9 Figure 2 (the size of which can be regulated
by a cock h.) both with the space between the two diaphragms and the space
above the upper diaphragm b. The latter space is also connected to the inlet by a
larger passage j Figure 1 on which is a non-return valve k working outwards.
When the upper part a of the spindle is pulled up the upper diaphragın 6 which
is fixed to it forces the water above it out through the larger passage; past the non-
return valve k into the inlet. The upper diaphragm 6 carries with it the lower
diaphragm because since the inlet into the space between them is small, water
cannot, be sucked in quickly and the lower portion a' of the spindle being. fixed to
the lower diaphragm is also raised and the valve is opened as above described. If
the upper part a of the spindle be released the valve does not close until the upper
diaphragm has been forced down by the water which slowly enters above it by the
small passage g and if the upper part a of the spindle be kept pulled up the valve will
close in just the same time for in this case the water will flow through the small
passage g into the space between the diaphragms and force them apart. The lower
portion a of the spindle carries a disc which being exposed to the flow of the water
tends to pull the spindle downwards.
In order to prevent external leakage the upper part of the spindle passes through
a double stuffing box m the space between the two packings being connected by a
passage n to the outlet.
The outlet from the space above the upper diaphragm in place of leading to the
inlet may lead to the outlet. In this case the spindle is also made in two parts, the
top one a being hollow and opening into the above described passage n in the stuffing
box as shown in Figure 3. The lower end of the top part a abuts against an elastic
seat dat the upper end of the bottom part a' normally closing the outlet but when
the spindle a is pulled up the hollow part is raised off this seat (there being
a small
amount of play between the two parts to allow of this) and the water above the
diaphragm is forced out through the hollow of the spindle.
The closet to which these valves are preferably applied are of the type described
in the Specification No. 17853 of 1892. The valve is so placed that when it is fully
open the flow of water is sufficient to seal the air inlet to the top of the syphon but
when it has partially closed as above described the flow into the pan is not sufficient
to seal the air inlet so that the vacuum is broken and the syphonic action stopped,
the after flush therefore is retained in the pan.
The above described valves are also applicable to other closets.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The combination with a closet whose pan is emptied by syphonic action and
which is flushed directly from the water supply pipe of a valve giving an afterflush
delivered gradually enough to prevent the continuance of the syphonic action.
2. The combination with closets of the type described in the Specification No. 17853
of 1892 of a water supply valve delivering a sufficient flow of water to seal the air
inlet and an afterflush insufficient to seal it.
3. A valve for supplying water to closets and the like having two diaphragms one
actuated by the handle and the other carrying the parts for closing the water way and
a small passage leading from the inlet to the spaces between the diaphragms and
above the upper diaphragm so that the valve closes automatically after a certain
time whether the handle be held or not.
4. Valves substantially as described and shown in the drawings.
Dated this Toth day of April 1890.
G. H. JENNINGS.
SIDNEY JENNINGS.
JOHN MORLEY.
G. H. JENNINGS.
SIDNEY JENNINGS.
JOHN MORLEY.