Year: 1886

page_text: Date of Application, 14th Aug., 1886.
Complete Left, 16th May, 1887.
Complete Accepted, 17th June, 1887,
We RICHARD BROWN EVERED, Brass founder, of 27 Drury Lane, and NICHOLAS
COLEMAN, Whitesmith, of 2 Churchill Road, Kentish Town, both in the County of
Middlesex do hereby declare the nature of this invention to be as follows:-
Our invention relates to flushing apparatus for water closets, and comprises the
improvements hereinafter described.
According to our said invention we arrange a syphon in the water cistern or tank,
the long leg of which syphon extends below the bottom of the said tank.
The short leg of the syphon is enlarged at its extremity and has a plunger arranged
to work within it.
This plunger is carried upon a lever pivotted to one of the walls of the tank, and the
free end of the said lever has connected to it the rod or chain by which the apparatus
is set in operation.
The said plunger is provided with a valve adapted to open towards the interior of
the syphon.
When the tank is full of water and the plunger is near the bottom end of the short
leg of the syphon, the latter is also nearly full of water. When the operating chain is
pulled the lever carrying the plunger is raised and the plunger is moved upwards
within the short leg of the syphon. This upward movement of the plunger lifts the
water lying above the same and causes it to flow over the bend of the syphon,
whereby the latter is started. The flow then continues until the water reaches the
level of the short leg of the syphon. The valve in the plunger permits the free
passage of the water therethrough.
Any suitable means may be employed for automatically filling the tank after it has
been emptied.
With apparatus constructed as hereinbefore described waste of water is prevented,
as the upward motion of the plunger is not sufficient to raise the water over the bend
of the syphon to start the same, unless the tank is filled to its normal level.
0
Dated this 14th day of August 1886.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: Improvements in Flushing Cisterns.
We, RICHARD BROWN EVERED, Brassfounder of 27 Drury Lane, and NICHOLAS
COLEMAN, Whitesmith of 2 Churchill Road, Kentish Town, both in the County of
Middlesex, 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 :-
Our invention relates to flushing cisterns of that class provided with syphons, which
are designed to be set in operation by the upward movement of a piston or.
r.plunger
within the short leg of the syphon.
In a cistern of this class as heretofore constructed the piston is usually operated by
a ród passing upwards through the wall of the syphon, so that it is necessary to
provide a stuffing box or gland around the same to prevent the admission of air into
the said syphon.
This stuffing box or gland is apt to wear or become loose, so as to interfere with the
proper action of the syphon; and it also tends to impede the free motion of the piston
or plunger, so that the latter is liable to become fixed in its upper position.
The object of our invention is to operate the piston or plunger in such a manner
that any leakage of air into the syphon is prevented, and so that the piston or plunger
works more freely than heretofore; and to this end it comprises the improvement
hereinafter described.
The accompanying drawing shows in longitudinal section apparatus constructed
according to our invention.
a is the cistern and 6 is a syphon. The long leg c of this syphon extends through
the bottom of the said tank; and the short leg is enlarged at its extremity d, as
shown.
e is a piston.or plunger arranged to work or slide within the said enlarged portion d.
This plunger is carried upon a lever f pivotted at g to one of the walls of the tank;
and the free end of the said lever has connected to it one end of the rod i. The
other end of the said rod is attached to a lever k which also carries the chain / by
means of which the apparatus is operated.
Instead of employing the lever k the operating chain may be directly connected to
the end of the lever f, a pulley being attached to the edge of the cistern, over which
the chain passes.
The plunger e is provided with a hinged valve m adapted to open towards the
interior of the syphon, but it is to be understood that any other suitable form of valve
may be used.
°
When the tank is full of water and the plunger is near the bottom end of the
enlargement d of the syphon, the latter is full of water nearly up to the level of
the bend of the syphon.
When the operating chain is pulled the lever carrying the plunger is raised, so
that the said plunger is moved upwards within the short leg of the syphon. This

page_text: upward movement of the plunger lifts the water above the same and causes it to flow
over the bend of the syphon, whereby the latter is started. The flow then continues
until the water reaches the level of the bottom of the short leg of the syphon. The
valve m in the plunger permits the free passage of the water therethrough.
Any suitable means may be employed for automatically filling the tank after it has
been emptied in the drawing, a ball valve n is shown for the purpose.
placed over the cistern.
o is a cover
Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is.
First In a flushing cistern, the combination with a syphon, having a piston or
plunger adapted to slide within the same, of means for operating the said piston or
plunger from its underside, substantially as, and for the purpose, described.
Second-The combination with the syphon b, of the piston e carried upon the
lever f, substantially as described.