Improvements in Water Waste Preventing Syphon Cisterns.
Year: 1888

page_text: Date of Application, 22nd Sept., 1888
Complete Specification Left, 22nd June, 1889-Accepted, 27th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Water Waste Preventing Syphon Cisterns.
JAMES WILLIAM BROADEY Engineer, 20 Park Grove Rusholme Manchester in the
County of Lancaster do hereby declare the nature of this invention to be as
follows:-
The object of my improvement in Syphon Cisterns is to construct such a Cistern
as shall be a thorough waste preventer, and at the same time be capable of being
brought into action with a quick or gentle pull or drop of the lever.
To enable me to do this I place a Trap which may be of different shapes and
material in Cistern the opening of which is at least inc. above the side of Cistern,
and which by preference I make Bell mouthed, I then place a Cylinder over this
which acts as the short leg of syphon. In this Cylinder I place at top a valve, conical
or flat, which may be either ground or faced with India rubber, leather or other
suitable material. The spindle of said Valve is passed through the top of cylinder
and is fixed to bearer from which, Cylinder is hung in Cistern and to bring the
syphon into action it is only necessary to pull the lever in the usual way when the
Cylinder is lowered deeper in the water and the Valve being opened the air is allowed
to escape, when the lever is let go the Valve closes by weight of Cylinder, which is
raised to its normal position, forming a vacuum therein, which at once begins to fill
with water, overflowing the trap, and so emptying the Cistern of the necessary
quantity before stopping.
I may also use a self opening or closing Valve of most suitable shape.
COMPLETE SPECIFICATION.
Improvements in Water Waste Preventing Syphon Cisterns.
I, JAMES WILLIAM BROADEY, Engineer, of 20, Park Grove, Rusholme, Manchester
in the County of Lancaster, 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 :-
The object of my improvement in syphon cisterns is to construct such a cistern as
shall be a thorough waste preventer and at the same time be capable of being brought
into action with a quick or gentle pull or drop of the lever.
On the sheet of drawings appended hereunto fig. 1 represents a section of my
improved syphon cistern and fig. 2 a plan of the same.
The cistern a has a cylinder or pipe b cast or fixed to it. The latter supports the
pipe c forming the long leg of the syphon. The top of this pipe is at least inch
above the sides of the cistern to prevent the possibility of water flowing into it if the
apparatus should become deranged. The flush pipe d with mouth piece e passes
watertight through the bottom of the cistern inside the cylinder 6 to a short distance
above the lower end of pipe c, forming with the cylinder a trap for pipe c.
pipe c may also be trapped in any other ordinarily used manner, for instance by
bending the pipe c up again for a short distance and then down again and connecting
its end to the flush pipe.
The
A forked bracket f is cast upon the cistern a and the beam lever g mounted on the
pin h in said bracket. The lever g is weighted at one end by a weight / cast on it
which holds it down upon the edge of the cistern at that end as shewn. An arm
is fixed or cast to the lever g and a link m with a valve n at its lower end is sus-
pended from the arm. The valve n is inside an inverted cylinder or bell o formed

page_text: with an opening or seating for the valve at the top. The valve may be ground
upon its seating, or made with a washer of leather or india-rubber or other
suitable material. A chain p. or its equivalent is attached to the end of the lever g.
The cistern is provided with the usual ball tap for refilling it and an overflow
pipe s.
The lever g and bell o occupy the positions shewn on the drawing while the
cistern is not used for flushing. To start its action, the chain p is pulled, when
the valve n is opened and the air contained in the bell o allowed to escape, so
that the latter descends with the valve till resting on the top of the pipe c. On
the chain p being released, the weight k returns the lever g to its original
position. The valve n is pulled against its seating and lifts the bell o. The air
contained under the same is thereby expanded and a partial vacuum produced,
which causes the water to rise between the bell o and the cylinder till it flows
over the edge of the latter into pipe c and starts the action of the syphon, the
annular space between o and b forming the short leg of the latter. The action
continues till the water level in the cistern falls below the bottom edge of the bell o,
when air enters the bell and remains enclosed under it till the syphon is started
again by pulling the chain p. Whether the chain p be pulled quickly or slowly,
or released suddenly or gradually, the action of the syphon is started with equal
certainty.
Instead of the inverted valve n, I use in some cases a self-opening and closing
valve of suitable shape on the top of the bell o, suspending the latter in this case
direct from the arm 1. For instance, an indiarubber or vulcanite ball valve held in
suitable guides may be arranged on the top of the bell o. This valve will lift and
allow the air to escape as the bell is lowered, and close again when the bell is
lifted. The action of the syphon with this arrangement is similar to that herein-
before described.
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,
Firstly, the general arrangement of waste preventing syphon cistern substantially
as hereinbefore described and illustrated by the drawings.
Secondly, the combination with a pipe (c) connected through a trap with the flush
pipe of a flushing cistern of a bell (0) covering said pipe and formed with a valve
seating and carried by a valve (n) suspended from a beam lever (g) weighted at the
opposite end and provided with a pull at the same end, substantially as hereinbefore
described and illustrated by the drawings.
Thirdly, the combination with a pipe connected through a trap with the flush pipe
of a flushing cistern of a bell covering said pipe and suspended from a beam lever
weighted at the opposite end and provided with a pull at the same end and of a
self opening and closing valve arranged on the top of said bell, substantially as
hereinbefore described.
Dated this 20th day of June 1889.