Improvements in Automatic Flushing Cisterns or Tanks.
Year: 1898

page_text: Date of Application, 17th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in Automatic Flushing Cisterns or Tanks.
I, RICHARD GEORGE HOWSON, of the Firm of George Howson & Sons Limited, of
Eastwood Sanitary Works, Hanley, in the County of Stafford, Manufacturers, do
hereby declare the nature of this invention to be as follows:-
-
This invention relates to improvements in automatic flushing cisterns or tanks
for urinals, drains, latrines, water closets, and the like whereby I avoid the use
of complicated valves, taps, small syphon pipes or other mechanism likely to get
out of repair, and so interfere with the action of such automatic tanks.
. According to the invention I provide a tank of suitable size and construction
and made of galvanized iron, fire clay or any other suitable material, and in
combination therewith I furnish a syphon, which can be made of any shape,
but is preferably round in plan, and which can be made of iron, lead, copper,
fireclay or any other suitable material. The said syphon is connected to the tank
by a hole through the bottom of the latter, through which the longer leg of the
syphon can be passed and secured by suitable means such as a back nut. A bell
or dome covers the syphon, the said bell being made of copper, fireclay or other
suitable material. The said bell or dome is shaped to suit the syphon and it is
provided at the top with a small hole around which is fitted a turned seating of
fireclay, earthenware, gun metal or other suitable material. Upon the said seating
and directly over the hole in the bell or dome I place a sphere or ball of india-
rubber or other suitable material, which said sphere is covered by a perforated
hood.
With this arrangement as the water in the tank rises, it compresses the air
between the water in the said tank and the water in the syphon, and when the
water reaches the height of the sphere or ball on the top of the bell or dome, it
floats the said ball and allows the compressed air to immediately escape so that
syphonage then ensues until the tank is empty.
In some cases the ball is lifted from its seat by the pressure of the enclosed air.
יד
L 3
1711 1
PT
1000
Improvements in Automatic Flushing Cisterns or Tanks.
I, RICHARD GEORGE HOWSON, of the Firm of George Howson & Sons Limited, of
Eastwood Sanitary Works, Hanley, in the County of Stafford, Manufacturers, do
[Price 8d.]

page_text: 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 relates to improvements in automatic flushing cisterns or tanks
for urinals, drains, latrines, water closets, and the like, whereby I avoid the use
of complicated valves, taps, small syphon pipes or other mechanism likely to get
out of repair, and so interfere with the action of such automatic tanks.
According to the invention I provide a tank of suitable size and construction
and made of galvanized iron, fire clay or any other suitable material, and in
combination therewith I furnish a syphon, which can be made of any suitable
shape and of iron, lead, copper, fire clay or any other suitable material. The said
syphon is connected to the tank by a hole through the bottom of the latter, through
which the longer leg of the syphon can be passed and secured by suitable means,
such as a back nut. A bell or dome covers the syphon, the said bell being made of
copper, fire clay or other suitable material. The said bell or dome is shaped to suit
the syphon and it is provided at the top with a small hole around which is fitted
a turned seating of fire clay, earthenware, gun metal or other suitable material.
Upon the said seating and directly over the hole in the bell or dome I place a
sphere or ball of indiarubber or other suitable material, which said sphere is
covered by a perforated hood.
With this arrangement, as the water in the tank rises it compresses the air
between the water in the said tank and the water in the syphon, and when the
water reaches the height of the sphere or ball on the top of the bell or dome, it
floats the said ball and allows the compressed air to immediately escape so that
syphonage then ensues until the tank empty.
In the accompanying drawing,
Figure 1 is a vertical section of an automatic flushing cistern made according
to the invention; and,
Figure 2 is a similar view of a cistern having a slightly different construction
of syphon.
a is the tank, which, as above mentioned, is of suitable size and is made of
galvanized iron, fire clay or any other suitable material; b is the longer leg of
the syphon the said longer leg passing through a hole in the bottom of the
cistern a to which it is secured by the back nut c and d is the shorter leg of the
syphon of which e is the seal. As above mentioned the syphon is made of iron,
lead, copper, fire clay or of any other suitable material. f, Figure 1, is the bell
or dome which covers the syphon, the said bell or dome f being made of copper,
fire clay or other suitable material and helping to build the shorter leg of the
syphon as is clearly seen; this bell or dome f is only represented in the modification
shewn in Figure 2 by the outer wall of the shorter leg of the syphon.
g is the small hole formed in the upper part of the dome for its equivalent
and g is the turned seating of fire clay, earthenware, gun metal or other suitable
material which is fitted around the said hole. h is the sphere or ball of india-
rubber or other suitable material which forms the valve and rests upon
the seating g', and i is the perforated hood with which the said sphere is
covered.
With this arrangement, as the water in the tank a rises it compresses the air
between the water in the said tank and that in the seal e of the syphon, and when
the water in the tank reaches the height of the sphere or ball hit floats the said
ball (as shewn in dotted lines in the figures) and allows the compressed air to
immediately escape so that syphonage then ensues until the tank is empty.
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 wha
I claim is :-
1. The combination and arrangement of parts forming the improved flushing

page_text: cistern or tank herein before described and illustrated in Figure 1 of
the accompanying drawing.
2. The modified construction of flushing cistern or tank hereinbefore described.
and illustrated in Figure 2 of the accompanying drawing.
Dated the 7th day of September 1898.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.