IMPROVEMENTS IN FLUSHING-CISTERNS to be as follows:-
Year: 1885

page_text: I, RICHARD BROWN EVERED, of 27 Drury Lane, in the County of Middlesex,
Brass-Founder, do hereby declare the nature of my invention for "IMPROVEMENTS
IN FLUSHING-CISTERNS to be as follows:-
"
My invention relates to flushing-cisterns, and is chiefly designed to provide for
an effecient after-flush, and to prevent waste.
In my improved flushing-cistern, I employ a siphon for drawing the water from
the main compartment of the tank or receptacle. In combination with this siphon
I arrange a valve carried by a lever which is connected with the operating lever.
This valve is normally closed and, therefore, prevents the flow of water through
the siphon except when the apparatus is put in operation.
The water for the after-flush is contained in a smaller compartment of the said
tank or receptacle, which compartment is open at the top and is filled by the
water overflowing from the main compartment. The valve for the after-flush is so
connected with the lever of the ball-valve that, when the latter is in its raised
position, this valve will be closed, and when the said lever descends, the said valve
will be opened. Therefore the after-flush cannot take place until the main flushing
valve has been opened and the operating lever has been released.
My said invention is conveniently and advantageously carried into practice as
follows, that is to say; I provide a suitable tank or receptacle furnished with a
ball-valve in the ordinary manner and divided into two compartments, one for the
main flush and the other for the after-flush. A siphon is attached at one end to
the upper end of the discharge pipe for conducting the water from the tank to the
water-closet-basin or other receptacle. The other end of this siphon extends
downward above a well formed in the bottom of the tank to permit the movement
of a valve which is carried by a lever pivotted near the bottom of the tank. This
lever is provided with a counterweight which normally holds the said valve
against the end of the siphon to close the same.
The operating lever is connected by a slotted rod or bar with the ball-valve-lever
in the usual manner; it is also connected by a chain or otherwise with the
aforesaid weighted lever. The free extremity of the ball-valve-lever is connected,
by a chain passing over a pulley or by other suitable means, with a valve in the
Price 6d1

page_text: smaller compartment of the tank. This compartment, when the said valve is
open, communicates with the discharge pipe by means of a suitable pipe or
passage.
When the cord or chain attached to the operating lever is pulled, the aforesaid
weighted lever is moved around its pivot to open the siphon, and at the same time
the said slotted rod or bar is raised so that it will keep the ball-valve-lever in its
raised position. The water for the main flush then flows through the siphon and
down the discharge pipe. When the operating lever is released, the weighted
lever closes the siphon, and the ball-valve-lever descends and thus opens the valve
in the smaller compartment and permits the water for the after-flush to flow
therefrom into the discharge pipe.
By the above described apparatus a full flush is obtained immediately the lever
is actuated. Moreover the valve in the smaller compartment closes automatically
before any water can flow into the said compartment.

page_text: I, RICHARD BROWN EVERED, of 27 Drury Lane, in the County of Middlesex,
Brass-Founder, do hereby declare the nature of my invention for "IMPROVEMENTS
IN FLUSHING-CISTERNS and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
"
My invention relates to flushing cisterns of that class wherein the lever of the
ball-valve is held up and the water supply thus kept shut off during the flushing
of the water-closet-pan or other receptacle.
One object of my said invention is to provide means whereby the valve which
controls the flow of water for the after-flush will be opened automatically, when,
but not until, the ball-valve-lever is allowed to fall, and will be closed automatically
when the said lever rises.
Another object of my said invention is to provide means for closing the siphon
whereby the water for flushing the pan or receptacle is drawn from the tank, and
thus preventing the premature charging of the said siphon and avoiding waste, in
case of leakage of the supply valve.
My invention is illustrated in the accompanying drawing, in which,
Figure 1 is a vertical longitudinal section of one form or modification of my
improved cistern, and
Figure 2 is a similar view of another form or modification thereof.
a indicates the tank or receptacle for the water, b the ball valve, c the pipe for
conducting the water from the said tank to the pan or other receptacle to be
flushed. is the chamber or compartment for containing water for the after-flusb,
which compartment open at the top and is filled with water which flows from
the tank a over the partition at between the said tank and the compartment d.
e is a siphon, one leg or limb of which is connected with the upper end of the
pipe c. The extremity of the other leg or limb of this siphon is level with the
bottom of the tank a, or nearly so, and is provided with a valve f carried by a
lever f¹ which is pivotted at f' and on which is secured a weight f³ whereby the
valvef is normally held in position to close the end of the said siphon. A well a²
is formed at the bottom of the tank a beneath this end of the siphon, to permit
the movement of the valve f and lever f¹.
g is a lever for operating the apparatus, which lever has a chain g¹ attached to
its outer arm. This lever is connected with the weighted lever f¹ by means of a
chain h. It is also connected, by means of a slotted rod or bar i, with the ball-
valve-lever b¹ in the usual or any suitable manner, so that the latter will be held
up as long as the valve fis kept open.
k is a valve for controlling the flow of water for the after-flush. This valve is
connected with the ball 62 by means of a chain passing over a pulley m. n is a
pipe or passage whereby, when the valve k is open, the compartment & commu-
nicates with the pipe c.
The operation of my improved flushing cistern is as follows, that is to say :-
When the chain g¹ attached to the lever g is pulled downward, the weighted
lever f¹ is turned upon its pivot and the valve fis thus opened; at the same time
the rod or bar i is lifted so that it will keep the ball-valve-lever b¹ in its raised

page_text: position. The water for the main flush then flows through the siphon and down
the discharge pipe c. When the lever g is released, the weight f³ falls and closes
the valve f, and the ball-valve-lever bi descends and thus opens the valve k and
permits the water for the after-flush to flow from the compartment d through the
pipe or passage n and down the discharge pipe c.
By constructing a flushing cistern in the manner above described, I provide for
ensuring a full flush immediately the lever g is actuated. Moreover it is evident
that the valve k will close automatically as the ball-valve-lever rises and will,
therefore, be closed before any water can flow from the tank a into the com-
partment d, and the valve k will not be opened except when the valve f is closed.
It is evident that other means than those above described may be employed for
connecting the ball-valve-lever with the valve k. In Figure 2, I have shewn
a lever o pivotted at the top of the partition a¹ and connected with the ball b² by
a rod p, and with the valve k by a rod or link q. The rod p is screw-threaded as
shewn and provided with nuts p', p², which can be adjusted to regulate the time
of opening of the said valve.
The construction of my apparatus can, obviously, be somewhat modified without
departing from the nature of my invention.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
First. A flushing-cistern wherein the valve for the after-flush is connected with
the lever of the ball-valve so that it will be opened automatically by the said lever
in its descent and will close automatically when the said lever rises, as above
specified.
Second. In a flushing-cistern, the combination, with a siphon, of a valve for
closing the same and preventing the charging thereof until the said valve is
opened, substantially as, and for the purpose, set forth.
Third. The improved flushing-cistern consisting of the parts constructed and
combined substantially as described with reference to either of the forms or
modifications shewn in the accompanying drawing and operating as above specified.
Dated this 1st day of July 1885.