IMPROVEMENTS IN VALVES OR APPARATUS FOR PREVENTING THE WASTE OF WATER."
Year: 1881

page_text: LETTERS PATENT to Edwin Oliver Mundy, of 29, Preston Road, Stratford,
in the County of Essex, Engineer, for an Invention of "IMPROVEMENTS IN
VALVES OR APPARATUS FOR PREVENTING THE WASTE OF WATER."
PROVISIONAL SPECIFICATION left by the said Edwin Oliver Mundy at
the Office of the Commissioners of Patents on the 24th February 1881.
EDWIN OLIVER MUNDY, of 29, Preston Road, Stratford, in the County of Essex,
Engineer. "IMPROVEMENTS IN VALVES OR APPARATUS FOR THE PREVENTION OF
WASTE OF WATER."
This Invention relates to improvements in water waste preventers. Hitherto
apparatus designed for the purpose is open to certain objections; by working the
valve repeatedly the water is allowed to pass until the cistern or other receptacle is
emptied, but by the adoption of my improved apparatus only a specified quantity
of water is allowed to pass, and a lapse of about a minute is required before it can
be again properly manipulated.
Such improved apparatus consists of a hollow ball of rubber or other elastic
material working up and down in a guide, with a covering or cage of perforated
zinc or any other suitable metal, thus preventing any kind of chip, straw, or refuse
coming in contact with the working parts, which at times enter the cistern and is
likely to stop the action as with other valves. The orifice in the base plate is
provided with a screw thread so as to allow of its screwing on to a metal seating,
which is soldered into the cistern or other place where the apparatus is fitted, and
thus allow of its removal when necessary for repair or otherwise in the usual
manner.
The piston works up and down and is kept in position by means of a guide tube,
which latter works through a bridge piece formed in the seating; screwed to the
top end of this guide tube is a brass disc or valve filled with any suitable non-
corrosive metallic composition so as to impart sufficient weight thereto when closed
to shut off the water, and fitted beneath with a washer made of rubber or any
other material in order to insure the valve fitting closely to the seating.

page_text: The piston is provided with two solid metal hemispheres or any other requisite
shape, the top one being fixed to the piston, the bottom one being loose gradually
presses into the ball until it has descended and shut off the water, the ball then
having the appearance of a cup rubber.
My present Invention has three advantages:-In the first place, as I have already
stated, it is less likely of any straw or fibre getting on the seating, thus preventing
the shutting off the water, being protected by a casing of perforated zinc; secondly,
an additional full flush of water cannot be obtained. under about a minute's
duration; and, thirdly, the vent or air hole is made so large that it is not likely to
corrode and thus prevent the free action of the water waste preventer as it will in
other valves of the kind.

page_text: Figure 1 is a side view, and Figure 2 a vertical section of a valve and apparatus
arranged in accordance with my Invention.
My improved apparatus consists of a hollow ball a, of india rubber or other
elastic material working up and down within a covering or cage b, of perforated
zine or any other suitable metal or material, thus preventing any kind of chip
straw or refuse coming in contact with the working parts, which at times enter the
cistern and is likely to stop the action as with other valves.
The orifice in the base plate a' is provided with a screw thread, so as to allow
of its screwing on to a metal seating c which is soldered into the cistern or other
place where the apparatus is filled, and thus allow of its removal when necessary
for repair or otherwise in the usual manner.
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The valve d works up and down and is kept in position by means of the rod or
stem d' attached to it, which latter works through a bridge piece c' formed in the
seating c. Screwed to the top end of the guide rod d' is a metal disc or valve d
fitted with any suitable non-corrosive metallic composition so as to impart sufficient
weight thereto when closed to shut off the water, and fitted beneath with a
washer d², made of rubber or any other suitable material, in order to insure the
valve fitting closely to the seating c. The piston rod e carries two solid metal
hemispheres e¹, e³, (or this weight may be of any other suitable shape) the top
one e being fixed to the piston rod e, the bottom one being loose gradually presses
into the ball until it has descended and shut off the water, the ball then having
the appearance of a cup rubber.
The rod e is tubular and a small vent hole ex is formed through it between the
two hemispheres or ports e¹, e², (as shown separately by Figure 3) the passage
through the tube e communicating with the interior of the hollow ball a, the
combined parts acting as a valve. When the valve d, d', is in the act of being
raised the two parts e, e, separate to a small extent exposing the vent hole e*, so
that the water can flow into and fill the hollow ball quickly; but when the valve
is released the parts e', e², close together so that the water can only be discharged
from the ball a slowly through the vent hole or valvular passage e*, thus retarding
the descent and closing of the valve.. By this means a regulated quantity of
water can only be discharged through the valve in a given time, as the valve d, d¹,

page_text: cannot be fully raised again until the parts e¹, e³, have descended to their lowest
position.
My improved waste water preventer has three advantages; in the first place, as
already stated, it is less probable that any straw or fibre can get on to the seating c,
thus preventing the shutting off, the water being protected by the casing 6 of
perforated zinc or other suitable perforated metal b; secondly, an additional full
flush of water cannot be obtained under about a minute's duration; and, thirdly,
the vent or air hole is made so large that it is not likely to corrode, and thus
prevent the free action of the water preventer, as it will in other valves of this
character.
Having thus described the nature of my Invention, and the manner of
performing or carrying the same into practice, I would have it understood that I
do not claim any of the parts separately which are well known and in common use,
but what I claim is,―
The improved arrangement and construction of valves and apparatus combined
therewith for preventing the waste of water in water closets and other places, such
valves and apparatus acting substantially in the manner and for the purpose
hereinbefore described and represented in the Drawings hereto annexed.
In witness whereof, I, the said Edward Oliver Mundy, have hereunto set my
hand and seal, this Twenty third day of August, in the year of our Lord
One thousand eight hundred and eighty one.