IMPROVEMENTS IN WATER WASTE PREVENTORS
Year: 1875

page_text: LETTERS PATENT to Josiah George Jennings, of Stangate Wharf,
Lambeth, in the County of Surrey, and Alfred Willmer Pocock, of
11, Church Street, in the City of Westminster, for the Invention
PROVISIONAL SPECIFICATION left by the said Josiah George Jennings
and Alfred Willmer Pocock at the Office of the Commissioners of
Patents, with their Petition, on the 3rd December 1875.
We, JOSIAH GEORGE JENNINGS, of Stangate Wharf, Lambeth, in the
County of Surrey, and ALFRED WILLMER POCock, of 11ª, Church Street,
in the City of Westminster, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN WATER WASTE PREVENTORS," to be as
follows:-
This Invention has for its object improvements in water waste pre-
venters, applicable more especially for controlling the discharge of water
into the pan of a watercloset.

page_text: The apparatus is composed of a cylinder with a cover at each end.
From each end is also a passage leading to a port of a valve, by
preference a slide valve, similar to the slide valve of a steam engine, the
valve face being cast on one of the cylinder covers. Above the valve
face is a valve box open to the water supply. Between the two ports
which lead to the opposite ends of the cylinder is a port, from which
passes an outlet pipe to the pan of the closet. Resting upon the valve
face is a D slide, which covers the central port, and either one or other
of the outer ports, so that by shifting the slide either end of the cylinder
may be opened to the water supply, whilst the opposite end is opened to
the discharge outlet. Within the cylinder is a piston, and each time the
slide valve is shifted the piston is caused to travel from one end of the
cylinder to the other, and a volume of water equal to the contents of the
cylinder is discharged into the pan of the closet.
So far the apparatus is somewhat similar to apparatus previously
suggested for the prevention of waste of water supplied to waterclosets.
Heretofore however the slide valve rod has been coupled to the pull up
apparatus of the closet, so that when the pull up handle was raised the
valve was shifted in one direction, and water flowed from one end of the
cylinder to the pan, and when the handle was put down the valve was
brought back to its original position, and water was discharged into the
pan from the opposite end of the cylinder. By this arrangement,
although no more than double the contents of the cylinder could be
discharged into the pan each time that the pull up handle was raised,
yet unless the handle were held up for a proper length of time the full
flushing charge of water would not be delivered.
According to our Invention we arrange the apparatus in such
manner that each time the handle is lifted a proper discharge of water
shall take place into the pan, whilst at the same time no more than the
proper quantity can be discharged, whether the handle be held up for a
long or short time. This we effect in the following manner :-We joint
to the slide valve rod a catch, which when the valve is shifted by the
raising of the pull up handle catches over a fixed stop in the valve box,
whereby the valve is retained when the handle is put down, and the
valve remains in the position into which it has been moved until the
piston in the cylinder has travelled from one end of the cylinder to the
other. The piston then comes against a rod passed through the cylinder

page_text: cover, and forces the pin outwards; the pin comes against and releases
the catch which previously retained the valve slide, and the valve slide
is then at once shifted over to its original position, either by a spring
or weight acting upon the valve rod, or it might be by a piston upon
the valve rod fitting the end of the valve chamber and acted upon con-
tinuously by the pressure of water in such chamber. By this arrange-
ment of the apparatus the following advantages are secured :-
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Josiah George Jennings and Alfred Willmer Pocock
in the Great Seal Patent Office on the 3rd June 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSIAH
GEORGE JENNINGS, of Stangate Wharf, Lambeth, in the County of
Surrey, and ALFRED WILLMER Pocock, of 11", Church Street, in the
City of Westminster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of December, in the year of
our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Josiah George Jennings and Alfred
Willmer Pocock, Her special license that we, the said Josiah George
Jennings and Alfred Willmer Pocock, executors, administrators, and
assigns, or such others as we, the said Josiah George Jennings and
Alfred Willmer Pocock, our executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and

page_text: "
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 WATER WASTE PREVENTORS,'
upon the condition (amongst others) that we, the said Josiah George
Jennings and Alfred Willmer Pocock, our executors or administrators,
by an instrument in writing under our or their hands and seals, or under
the hand and seal of one of us or them, 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 Josiah George Jennings, on behalf
of myself and the said Alfred Willmer Pocock, 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 thereof, that is to say:
-
This Invention has for its object improvements in water waste pre-
ventors, applicable more especially for controlling the discharge of water
into the pan of a watercloset.
The apparatus is composed of a cylinder with a cover at each end.
From each end is also a passage leading to a port of a valve, by
preference a slide valve, similar to the slide valve of a steam engine, the
valve face of which is cast on one of the cylinder covers. Above the
valve face is a valve box open to the water supply. Between the two
ports which lead to the opposite ends of the cylinder is a port, from
which passes an outlet pipe to the pan of the closet. Resting upon the
valve face is a D slide, which covers the central port, and either one or
other of the outer ports, so that by shifting the slide either end of the
cylinder may be opened to the water supply, whilst the opposite end is
opened to the discharge outlet. Within the cylinder is a piston, and
each time the slide valve is shifted the piston is caused to travel from
one end of the cylinder to the other, and a volume of water equal to the
contents of the cylinder is discharged into the pan of the closet.
· So far the apparatus is somewhat similar to apparatus previously
suggested for the prevention of waste of water supplied to waterclosets.

page_text: Heretofore however the slide valve rod has been coupled to the pull up
apparatus of the closet, so that when the pull up handle was raised the
valve was shifted in one direction, and water flowed from one end of the
cylinder to the pan, and when the handle was put down the valve was
brought back to its original position, and water was discharged into the
pan from the opposite end of the cylinder. By this arrangement,
although no more than double the contents of the cylinder could be
discharged into the pan each time that the pull up handle was raised,
yet unless the handle were held up for a proper length of time the full
flushing charge of water would not be delivered.
According to our Invention we arrange the apparatus in such manner
that each time the handle is lifted a proper discharge of water shall take
place into the pan, whilst at the same time no more than the proper
quantity can be discharged, whether the handle be held up for a long or
short time. This we effect in the following manner:-We joint to the
slide valve rod a catch, which when the valve is shifted by the raising of
the pull up handle catches over a fixed stop in the valve box, whereby
the valve is retained when the handle is put down, and the valve
remains in the position into which it has been moved until the piston in
the cylinder has travelled from one end of the cylinder to the other.
The piston then comes against a rod passed through the cylinder cover,
and forces the pin outwards; the pin comes against and releases the
catch which previously retained the valve slide, and the valve slide is
then at once shifted over to its original position, either by a spring or
weight acting upon the valve rod, or it might be by a piston upon the
valve rod fitting the end of the valve chamber, and acted upon con-
tinuously by the pressure of water in such chamber. By this arrange-
ment of the apparatus the following advantages are secured :—
1. A comparatively small measuring cylinder may be used.
2. The full flushing charge will always be delivered into the closet, no
matter how short a time the handle be held up.
3. It is impossbile to leave the closet with the pan untrapped, as there
must always be at least a half charge delivered into the closet after the
handle is dropped.
4. No more than one double charge can be obtained by a single
operation of the handle however long the handle may be held un

page_text: In order that our Invention may be fully understood, we have shown
in the Drawings hereunto annexed water waste preventors constructed as
above described.
Figure 1 shows a longitudinal vertical section, and Figure 2 a side
view of one arrangement of water waste preventor; Figure 3 shows a
transverse section of the same taken through the line C, D, Figure 1.
A is the cylinder, with a piston A¹ fitting within it, and with a cover B
at each end. C, C, are rods by which the covers are held up to the ends
of the cylinder. The cover B, upon which the valve face B¹ is secured,
is shewn separately at Figure 4. One of the outer ports of the valve
face communicates, as shown, through a passage D directly with one
end of the cylinder, and the other outer port through a passage E with
the opposite end of the cylinder, as shewn in Figure 1. The central
port G leads to the outlet H, as shewn at Figures 1, 3, and 4. I is the
valve box, to which water is admitted continuously from the water
supply by the passage J; K is the slide valve. Upon the back of this
slide is a projection K', which passes through a slot in a rod L. One
end of this rod is jointed to a piston M working in a small cylinder I'
at the top of the valve box, whilst the other end of the rod forms a
catch N to catch over a fixed stop O whenever the piston M is forced
downwards. P is a spring which presses the catch towards the valve
face. At the top of the cylinder I' is a stuffing box, through which
passes a rod Q. This rod at its upper end is connected to one arm of a
lever R, the opposite end of which is connected to the pull up apparatus
of the closet. By this means when the pull up handle of the closet is
raised the piston M is forced downwards until the catch N catches over
the fixed stop O; the slide valve is also at the same time shifted until it
comes over the ports D and G, as shewn in the section, Figure 5, and it
remains in this position when the handle of the closet is put down.
Water then flows from the valve box to the further end of the cylinder
through the passage E, and forces the piston A¹ away from that end of
the cylinder, so discharging the water previously contained in the
cylinder through the port D and outlet port G to the pan of the closet,
and if the handle of the closet has not been put down the discharge of
water into the pan will then cease, as the valve is retained from shifting
its position; but if the handle has been put down, or so soon as it is put
down, the valve is set free, by reason of the piston A¹ as it arrives at the

page_text: original position.
In witness whereof, I, the said Josiah George Jennings, have
hereunto set my hand and seal, this Eighth day of May, in the
year of our Lord One thousand eight hundred and seventy-six.
JOSIAH GEORGE JENNINGS. (L.S.)