Improvements in Syphon Fiushing Cisterns.
Year: 1899

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PROVISIONAL SPECIFICATION.
Improvements in Syphon Fiushing Cisterns.
I, SAMUEL CLARK, of 23, James Street, Bridgeton, Glasgow, Plumber, do hereby
declare the nature of this invention to be as follows:
This invention relates to syphon flushing cisterns for water-closets and the like,
and it is an improvement upon cisterns of this class wherein the movement of
a column of air is used as the means for starting the syphonal action.
In carrying out my invention I, under one arrangement, connect to the bottom
of the short leg of the syphon a pipe which extends down to or near to the water-
closet and is provided at its lower end with means such as a collapsible bellows,
an india rubber ball or pear, or a lever push arrangement working either alone
or in conjunction with a bellows, ball or pear, whereby the air in the pipe can
be set in motion whenever so desired. At the upper end of this pipe, or in a
chamber attached thereto, or in the short leg of the syphon is arranged a pneu-
matic bellows, ball, or bladder and which is capable of being expanded by the
movement of the air within the pipe. A lateral branch preferably bent down-
wards is fitted to the short leg of the syphon and communicates with the water in
the cistern.
Under a modification I may carry a branch pipe from the short leg of the
syphon to a small chamber in which the pneumatic bellows, ball or bladder is
situated and which can be expanded as before by means of pneumatic action.
The air within the air pipe can be set in motion by means of an india-rubber
bellows, ball or bladder provided with a push knob or its equivalent.
The arrangement is such that by compressing the air bellows, ball, or pear the
air within the pipe leading to the syphon is set in motion and causes the pneu-
matic bellows or bladder to expand or inflate and thereby displace the water in
the short leg of the syphon to such an extent as to cause it to flow over the top
of the bend of the syphon and start the syphonal action.
Dated this 21st day of February 1899.
Improvements in Syphon Flushing Cisterns.
I, SAMUEL CLARK, of 23, James Street, Bridgeton, Glasgow, Plumber, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to syphon flushing cisterns for water-closets and the

page_text: like and it is an improvement upon cisterns of this class wherein the movement
of a column of air is used as the means for starting the syphonal action.
In order that my said invention may be properly understood I have hereunto
appended two explanatory sheets of drawings, whereon,
Fig. 1 is a longitudinal section of a cistern and showing one arrangement of
the apparatus partly in section. "
Fig. 2 is a longitudinal section of a cistern and showing another arrangement
of the apparatus partly in section, the sections being taken on the lines XX,
YY, Fig. 3.
"
Fig 3 is a section of the apparatus Fig. 2 taken on the line Z-Z.
Fig. 4 is a front view and Fig. 5 a section of a
for use with the apparatus.
push knob and rubber ball
On the drawings the same reference letters wherever repeated indicate the
same or similar parts.
a represents the cistern and the syphon.
In carrying out my invention under one arrangement, as shown at Fig. 1, I
connect to the bottom of the short leg of the syphon b a chamber c from which
a pipe d, shown broken off, extends down to or near to the water-closet and is
provided at its lower end with means, such as an ordinary collapsible rubber
bellows, an india rubber ball or pear, or any well known and suitable lever push
arrangement working either alone or in conjunction-with a-rubber-bellows, ball,
or pear, whereby the air in the pipe can be set in motion whenever so desired.
Connected to the upper end of this pipe d and within the chamber c is a hollow
rubber ball or bladder e which is capable of being expanded or inflated by the
-movement-of-the-air within the pipe d. A lateral branch f, bent downwards and
open at its lower end, is fitted to the short leg of the syphon and communicates
with the water in the cistern.
The air within the air pipe d can be set in motion by the person desiring to
-produce_the_flush of water by squeezing or collapsing the india rubber bellows,
ball, or pear at the lower end of the pipe d. The arrangement is such that when
the bellows, ball, or pear, is collapsed or squeezed the air within the pipe dis
set in motion and causes the ball or bladder e to expand or inflate and thereby
displace the water in the short leg of the syphon to such an extent as to cause it
to flow over the top of the bend-of-the syphon and start the syphonal action.
It may be stated that the water from the cistern can enter freely into the
chamber c through the hole g' in the screw plug g and can freely pass from the
chamber into the syphon leg 61.
In the arrangement shown at Figs. 2 and 3 the syphon leg b₁ is made with an
upward bend 2 to which a vertical chamber c is connected at one side and a
depending tube 63 (shown dotted) at another. In the chamber ca collapsible
rubber bellows h is inserted instead of the bladder e (Fig. 1). The bellows is
inflated by air from its connected pipe d so as to displace the water in the chamber
and thereby cause the syphonal action as before. In Figs. 2 and 3 the bellows is
shown as expanded.
In Figs. 4 and 5 a suitable arrangement of rubber ball d¹ for starting the air
in motion within the pipe d is shown. As will be seen the ball may be enclosed
within a cover o which is secured to the wall or other convenient place and is
provided with a push p. When the push is forced into the cover it compresses
the ball and thereby starts the air in motion within the tube d.
Any suitable and well known device may be used for starting the air in motion 5
within the pipe d.
The details of construction of the apparatus may be modified or altered to
suit varying circumstances.
Having now particularly described and ascertained the nature of my said in-
vention and in. what manner the same is to be performed, I declare that what I 5
consider novel and desire to claim is :-
1. In syphon flushing cisterns setting a column of air in motion so as to expand

page_text: a ball, pear, or bellows and thereby start the syphonal action substantially as
herein before described.
2. The arrangement for carrying out the invention claimed in Claim 1, sub-
stantially as hereinbefore described with reference to Fig. 1 of the drawings
annexed.
3. The arrangement for carrying out the invention claimed in Claim 1, sub-
stantially as herein before described with reference to Figs. 2 and 3 of the drawings
annexed.
Dated thin 01at d
Naben 1000
H. D. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.