An Improved Water Waste Preventer for Water Closets and the like.
Year: 1892

page_text: Date of Application, 11th May, 1892
Complete Specification Left, 11th Feb., 1893-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION.
An Improved Water Waste Preventer for Water Closets and the like.
I ROBERT CHARLES FREDERICK WYATT of No. 45 Hartington Road South
Lambeth, in the County of Surrey, Plumber, do hereby declare the nature of this
invention to be as follows:-
To obtain a more perfect & silent flush with far greater facility than has hitherto
been practicable. This I effect by fitting a cistern with a syphon consisting of two
tubes fitting one within the other so as to rise and fall together. The inner tube
has a shoulder or collar formed on its base which fits into a bell mouthed or other
suitable shaped socket piece attached to the bottom of the cistern. The shoulder
or collar formed round the base of the inner tube is fitted with a rubber or leather
washer which forms an elastic seating or such collar or shoulder may be ground
into the socket piece and the elastic seating dispensed with. The syphon may be
worked either automatically or otherwise. The syphon is to be fitted with an air
valve at the top attached to a ball or otherwise fixed in the cistern with a division.
The operation of my invention is as follows:-
By fitting the syphon with the said air valve attached as above, on the discharge
of the water from the cistern & the consequent drop of the ball which thereby opens
the air valve the air is admitted & thus prevents the noise which would be otherwise
caused.
Dated 11th day of May 1892.
ROBERT CHARLES FREDERICK WYATT.
COMPLETE SPECIFICATION.
An Improved Water Waste Preventer for Water Closets and the like.
I ROBERT CHARLES FREDERICK WYATT, of No. 45, Hartington Road, South
Lambeth, in the County of Surrey, Plumber, 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 object an improved water waste preventer for water
closets and the like.
9
The accompanying drawing gives a view partly in perspective and partly in
a is the cistern which
sectional elevation, of such improved water waste preventer.
is fitted with a syphon flushing apparatus consisting of two tubes b, b' fitting one
within the other and connected by means of tie rods c, so as to rise and fall together
when actuated as presently described. The inner tube has a collar d formed on or
fixed to its lower end, which forms the syphon valve, and which collar fits into a
bell mouthed socket piece fastened to the bottom of the cistern by a screw nut f.
which
Such collar is provided on its under side with a rubber or leather washer
forms an elastic seating therefor. Or such valve may be ground into the socket
piece and the elastic seating dispensed with. The outer tube of the syphon is
attached to a lever h, which is operated by a cord i, on pulling which, the syphon
apparatus is raised sufficiently, as shewn in the drawing, to start the syphon, thus
causing the water to flow into the bell mouthed socket piece. On releasing the pull
the syphon apparatus drops back into its seating while the water continues to
discharge itself from the cistern by rising through the outer and descending through
the inner tube, thus producing a perfect flush.
In order to render such flush totally noiseless, I fit the syphon with an air valvej,

page_text: attached to one end of a lever arm k, pivotted to a support and fitted at its other
end with a chain and ball m, m'. As the water discharges through the syphon, such
air valve is operated automatically by the action of the chain and ball, which drop
on pulling the cord thus raising the lever arm, and opening the air valve. Air is
thus admitted into the syphon, whereby the vacuum is broken, and suction prevented,
and a perfectly silent flush is obtained. n is a union that connects the socket piece
with the discharge pipe. o is an arm or projection fixed to or formed on the outer
tube of the syphon apparatus. When the cord is pulled, and the apparatus raised,
such arm or projection comes in contact with the stem of the ball valve, thus closing
such valve, and shutting off the water supply.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
An improved water waste preventer fitted with a rising and falling syphon
flushing apparatus furnished with an automatic air valve and otherwise constructed
all substantially in the manner hereinbefore described and shewn.
Dated this 11th day of February 1893
ELT & Co.,
33, Southampton Buildings, London, Agents for Applicant.