Improvements in Syphon Flushing Cisterns and Water Waste Preventers.
Year: 1891

page_text: Date of Application, 13th June, 1891
Complete Specification Left, 28th Aug., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Syphon Flushing Cisterns and Water Waste
Preventers.
I, WALTER STOCK of the firm of Stock Sons & Taylors of 35, Temple Street
Birmingham in the County of Warwick Brassfounders, do hereby declare the
nature of this invention to be as follows:-
-
This invention relates to those kind of cisterns known as syphon flushing
cisterns whereby waste of water is prevented and a quick flush delivered by
reason of the syphonic action produced by the raising & lowering of a dome or
bell having an extended plate at its base and encasing and working over the
syphon or stand pipe. My improvements refer chiefly to the particular formation:
of the dome and base plate.
I will describe my improvements as applied to w.c. cisterns though a similar
arrangement and action will apply with equal effect for the flushing of urinals and
any such like situations where a flush of water may be required.
I use a cistern or tank of the ordinary kind which is supplied with water from
the main service in the usual manner by means of an inlet pipe at the one end of
the cistern the inflow of water being regulated and governed by a ball valve and
float, an outlet pipe or overflow is provided at the other end of the cistern.
A stand pipe or syphon pipe rises within the cistern or tank from the bottom
thereof to a height nearly level with the top of the cistern and above high water
level this stand pipe or syphon pipe is connected with the supply pipe leading from
the cistern to the w.c. basin.
Fitting loosely over the stand pipe or syphon is the dome or bell which is
covered in at the top this dome or bell is made deeper than the height of the stand
pipe or syphon which it covers so that a space may exist between the top of the
stand pipe or syphon and the crown of the dome or bell, to form a vacuum
for air.
Cast in one with the dome or bell and forming the base of same is a plate which
extends over the entire area of the cistern or tank and is of the same outline
though slightly smaller than the cistern, so as to admit of the passage of the water
under the plate.
Situated upon the floor of the cistern or tank or upon the under surface of the
base plate of the dome or bell are studs or rests to prevent the plate from being in
immediate contact with the floor of the cistern or tank and to allow of an inflow of
water to the dome or bell when the cistern is filling.
The dome or bell is picked up or depressed by means of a lever of any suitable
kind attached to which may be a chain or other connection for actuating the same.
The method of lever I usually adopt is of a spur shape i.e. having two arms
catching under snugs upon the upper part of the dome or bell and taking its
bearing by means of an axis in slots or seatings upon the sides or walls of the
cistern.
The "lift" of the dome or bell is determined by a stop upon the side of the
cistern against which a catch upon the axis of the lever abuts.
In order to start the syphonic action to flush a w.c. basin etc. it is only
necessary to depress the lever slightly by means of the chain or other connection
so that the dome or bell and base plate thereon may be raised about 11" to 21" this
will suffice to set up the syphonic action, for, the cistern or tank being practically
full or at high water level, the water will also have risen within the dome or bell
to a similar level in the space between the dome and the syphon and surrounding
same, thus the water in the cistern is acted upon by the force exerted over the

page_text: whole of its surface by the raising and lowering of the dome and base plate & is
forced under the base plate up the interior of the dome or bell and over the top of
and into the stand pipe or syphon thus the flow of water dislodging the confined air
within the crown of the bell starts the syphonic action, which action continues
until the whole contents of the cistern has been exhausted when the cistern refills
by the action of the ball valve & float as in the usual way after a discharge of
water.
Dated this 10th day of June A.D. 1891.
EDWARD J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Syphon Flushing Cisterns and Water Waste
Preventers.
I, WALTER STOCK of the firm of Stock Sons & Taylors of 35, Temple Street
Birmingham in the County of Warwick, Brassfounder, 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, reference
being had to the drawings hereunto annexed and to the letters and figures marked
thereon that is to say :-
This invention relates to those kind of cisterns known as syphon flushing
cisterns, whereby waste of water is prevented and a quick flush delivered by
reason of the syphonic action which is set up by the raising and lowering of a
dome or bell cast in one with an extended plate at its base and encasing and
working over the syphon or stand pipe.
I will describe my improvements as applied to w.c. cisterns though a similar
arrangement and action will apply with equal effect to the flushing of urinals and
any such like positions where a flush of water may be required.
Referring to the annexed sheets of drawings in which similar letters of reference
relate to similar parts,
Fig. 1 is a vertical section shewing all the parts in their normal position and the
dome or bell and base plate lowered.
Fig. 2, is a vertical section shewing the dome raised and cistern cover attached.
Fig. 3, shews a plan of the cistern or tank.
Fig. 4, is a plan of the dome or bell alone with its extended base plate.
Fig. 5, shews a perspective view of the cistern or tank.
A is the cistern or tank of the ordinary kind and is supplied from the main
service in the usual manner by the inlet pipe B, such inlet being regulated and
governed by the ball valve, C, and float C, C is an outlet or overflow from the
cistern or tank.
A stand pipe or syphon pipe D rises within the cistern or tank A from the
bottom thereof to a height nearly level with the top of the cistern and above high
water level this stand pipe or syphon pipe is in direct communication with the
supply pipe E, leading from the bottom exterior to the cistern A and down to the
w.c. basin.
Fitting loosely over the stand pipe or syphon D, is the dome or bell F which is
covered in at the top, this dome or bell is made deeper than the height of the stand
pipe or syphon D which it covers so that a space may exist between the top
of the stand pipe or syphon and the crown of the dome or bell to form a vacuum
for air.
Cast in one with the dome or bell F, and situated at the base thereof is a
plate G which extends over and covers the entire area of the cistern A and is of
the same conformation as the lower part of the cistern but slightly smaller, so as to
admit of the passage of the water beneath the base plate.

page_text: Situated upon the floor of the cistern or tank or upon the under surface of the
base plate of the dome or bell are studs or rests H, to support the plate and dome
so that the plate shall not be immediately upon the floor of the cistern or tank but
raised slightly to allow of an inflow of water to the dome or bell when the cistern
is filling.
Attached to the upper part of the dome or bell F, in any suitable manner is a
lever I which may be of any desired kind but shewn of a spur shape catching
under snugs J. upon the upper part of the dome and having its fulcrum or bearing
upon an axis K resting in slots or seatings L upon the sides or walls of the
cistern A.
A chain M or rod or other requisite method of attachment is connected to the
said lever I.
The "lift" of this dome is determined by a stop upon the side of the tank or
cistern against which a catch upon the axis of the lever works.
The operation of flushing is as follows,
The different parts being in their normal position as shewn in Fig. 1.
The cistern or tank A will be full the water will also have risen to a like level
within the dome or bell F, and occupying the annular space N, between the insides
of the dome or bell and the stand pipe or syphon D, and surrounding the same.
By actuating the chain M or other suitable attachment the lever I is depressed
at its one end, and the dome or bell F, and base plate G, (being all in one) is
picked up about 1 or 2 inches the syphon is thereby charged; by reason of the
raising and lowering of the dome or bell F, displacing the volume of water within
the cistern A, the water within the annular space in the dome or bell F, is forced
up and over the top of and down the stand pipe or syphon D, the displacement of
the air confined in the crown of the dome or bell by the passage of the water
creates a vacuum and starts the syphonage or flushing which having thus been set
up the syphonic action continues until the whole contents of the tank or cistern has
been exhausted and the w.c. basin flushed.
By reason of the base plate G being of such extended proportions the whole
surface of water is acted upon and displaced when the dome or bell is raised and
lowered thus the syphon is rapidly charged and a quick flush obtained.
The tank or cistern thus having been emptied of its contents automatically and
rapidly by means of the before named syphon action, the float C₁ of the ball
valve C will have descended as shewn in Fig. 5 thus the valve C. of the inlet B will
be open whence the water refills the cistern as in the usual manner ready for the
next flushing.
It will be readily seen by my improvements that I am able to produce a syphon
flushing cistern and water waste preventer having the advantage of great simplicity
in construction as I merely use an ordinary tank or cistern with a stand pipe or
syphon pipe therein and the dome or bell and plate therewith together with such
auxiliary parts as described thus the casting of the tank or cistern becomes a much
simpler matter than heretofore as I am enabled to dispense with any well or recess
in the bottom of the tank or cistern or any inner cell or annular compartment of
any kind rising within the tank or cistern, also by my method herein described no
valves and such like are required so that I am able to produce a syphon flushing
cistern that shall by its action be a water waste preventer, an action moreover that
shall not be liable to get out of repair.
I wish it to be understood that I do not confine myself to the precise formation
and detail of the several parts herein described in connection with my improved
syphon cistern as I can when occasion may require modify the same without
materially departing from the principle of this my invention.
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,
First. In a syphon flushing cistern and water waste preventer the particular

page_text: formation of the dome or bell having the extended footing or base plate cast
therewith or any mere equivalent thereof which works over the stand pipe er
syphon pipe, and by the lifting and lowering process the water is displaced in the
cistern and forced up the interior of the dome or bell and over the top of and
down the stand pipe or syphon pipe, the displacement of the air in the crown of the
dome or bell by the inrush of water starting the syphonic action, substantially as
herein more fully set forth described and illustrated.
Second. I claim the herein described improvements in syphon cisterns and water
waste preventers consisting of the general combination and arrangement of parts
or any mere equivalents thereof whereby water closet basins urinals and such like
can be effectually flushed and cleansed substantially and in manner as set forth and
illustrated.
1
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1001
EDWARD J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicant.