Improvements in Flushing Tanks or Water Waste Preventers.
Year: 1892

page_text: Date of Application, 8th Feb., 1892
Complete Specification Left, 5th Nov., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Flushing Tanks or Water Waste Preventers.
We, WILLIAM JAMES FREEMAN, and EDWIN FREEMAN, both of 99 York
Road, Battersea, in the County of Surrey, Sanitary Engineers, do hereby declare
the nature of this invention to be as follows:-
The object of our invention is to produce a perfect flushing apparatus or water
waste preventer, in which the mechanism is simple, and the ordinary operation
efficient for the purpose to which it is applied.
In carrying our invention into practice, we provide a tank or cistern preferably
having a well or recess at or near one end. A bent siphon is arranged so that the
longer or discharge end is attached to the flushing pipe through the cistern or tank,
by means of a suitable joint, and the shorter, or suction end coincides in position
with the well or recess before mentioned. The bend of said siphon is arranged in
such a manner as to be above the normal water level in the tank or cistern, and so
cause an air space to exist therein, when the cistern or tank is filled by means of
any suitable automatic device, and the discharge, or flushing operation is not
required.
A portion of said siphon is formed of flexible, or semiflexible material or
substance, and the shorter or suction end is caused to dip, or be depressed into the
well or recess in the tank, so that the air space within the bend is displaced, and
the flow started, so that the flushing or discharge is maintained until the tank is
empty, the residue in said recess enabling the shorter or suction end of the siphon
to be sealed. We may, in lieu of the flexible tube before mentioned, use a metallic
siphon, the longer end of which is made telescopic, so that one part may be caused
to slide within the other, and secured from leakage by suitable packing. The
necessary depression may thus be effected, without the use of a flexible pipe, the
action, however, being the same.
We do not confine ourselves to any particular substance or material of which
the flexible part of the siphon may be made, nor to the exact means for or method
of attachment to the fixed portions, nor to the pulling device, or flushing lever, the
essential feature being the use of a flexible or moveable siphon, the depression of
which causes a flow or flush of fluid from the tank or cistern until it is empty
whether the pulling or depressing device be released after the first pull or
otherwise.
The device or contrivance according to our said invention enables us to construct
a cheap and durable flushing apparatus, with, practically few working parts, and
no costly fittings. Instead of using displacers, valves, or the like, we prefer to
charge the siphon by a direct movement, and to construct the details in such a
manner that the external action is exactly the same as that appertaining to such
apparatus in general use.
Than 100

page_text: COMPLETE SPECIFICATION.
Improvements in Flushing Tanks or Water Waste Preventers.
We, WILLIAM JAMES FREEMAN, and EDWIN FREEMAN, both of 99 York
Road, Battersea, in the County of Surrey, Sanitary Engineers, 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 our invention is to produce a perfect flushing apparatus or water
waste preventer, in which the mechanism is simple and the ordinary operation
efficient for the purpose to which it is applied.
In carrying our invention into practice, we provide a tank or cistern preferably
having a well or recess at or near one end. A bent siphon is arranged so that the
longer or discharge end is attached to the flushing pipe through the cistern or tank,
by means of a suitable joint, and the shorter, or suction end coincides in position
with the well or recess before mentioned. The bend of said siphon is arranged, in
such a manner as to be above the normal water level in the tank or cistern, and so
cause an air space to exist therein, when the cistern or tank is filled by means of
any suitable automatic device, and the discharge or flushing operation is not
required.
A portion of said siphon is formed of flexible or semiflexible material or substance,
and the shorter or suction end is caused to dip, or be depressed into the well or
recess in the tank, so that the air within the bend is displaced, and the flow started,.
so that the flushing or discharge is maintained until the tank is empty, the residue-
in said recess enabling the shorter or suction end of the siphon to be sealed: We
may, in lieu of the flexible tube before mentioned, use a metallic siphon, the longer
end of which is made telescopic so that one part may be caused to slide within the
other and secured from leakage by suitable packing. The necessary depression
may thus be effected without the use of a flexible pipe, the action, however, being
the same.
We do not confine ourselves to any particular substance or material of which the
flexible part of the siphon may be made, nor to the exact means for or method of
attachment to the fixed portions, nor to the pulling device, or flushing lever, the
essential feature being the use of a flexible or moveable siphon, the depression of 3
which causes a flow or flush of fluid from the tank or cistern until it is empty,
whether the pulling or depressing device be released after the first pull or
otherwise.
The device or contrivance according to our said invention enables us to construct
a cheap and durable flushing apparatus, with, practically few working parts, and no
costly fittings. Instead of using displacers, valves, or the like, we prefer to charge
the siphon by a direct movement, and to construct the details in such a manner that
the external action is exactly the same as that appertaining to such apparatus in
general use, and in order that our said invention may be the better understood we
will proceed to explain the same with reference to the accompanying sheet of 4
drawings in which :-
Figure 1 represents a section through a flushing tank constructed according to
our invention.
Figure 2 is a section through a flushing tank constructed according to our
invention shewing a modified form of siphon.
The same letters denote the same parts in both figures.
P
A is the tank, B the well, C the siphon, having a bell mouth D 'at the suction
end thereof, E the discharge pipe, F is a lever supported in bearings in the tank,
G axle of lever. The lever F has a hook at one end on which is a link H which
raises the siphon when the cord or chain I is released, K ball cock, L float, 5
M overflow pipe, N and O are guide pulleys, P balance weight to raise siphon
after flushing to its normal position as shewn.

page_text: The siphon C is made of rubber and canvas or other suitable flexible tubing
secured to the flushing or discharge pipe E at one end and to the bell mouth (of
metal or other suitable material) at the other or the said siphon and bell mouth
may be made wholly of metal and connected to the pipe E by means of a short
piece of flexible tubing or any other suitable form of flexible joint. Attached to
the bell mouth D or siphon E, is a chain or cord 1 which passes under the guide
pulley N which turns on a stud fixed to the tank, thence over the guide pulley O
in the manner shewn.
The other end of the cord is provided with a ring or handle to enable the same
to be grasped.
When in the position shewn in Figure 1 the bend of the siphon is above the
normal water level and to charge the siphon for flushing purposes the cord I is
pulled, thereby causing the bend of the siphon to be depressed below the water
level and so charges the siphon, when charged the cord may be released and the
flushing will continue till the tank is empty, the water in the well B forming a seal
for the bell-mouth D.
In the modification shewn at Figure 2 the flexible siphon C is replaced by a
metal bell shewn in section at Figure 3 having an internal pipe R sliding on the
Hushing pipe E an air tight joint being made between them by means of the
packing S.
To start the flush the cord I is pulled depressing the lever F and with it
the bell to which it is attached by means of suitable links T.
The depression of the bell causes the mouth of the pipe R to fall below the level
of the water which immediately runs down the pipe and fills the pipe E after which
the siphoning continues till the tank is emptied the water in the well B sealing the
mouth of the bell as before described.
The hell Q may be dispensed with and the pipe R prolonged and bent over to
form the suction leg of an ordinary siphon which charged by sliding the tube R
over the tube E.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. In flushing tanks or water waste preventers the use of a flexible or telescopic
siphon the depression of which below the water level causes a flow of the con-
tained liquid from such tanks which flow is continued until the tank is empty
without the necessity of keeping the siphon depressed substantially as specified.
2nd. The improvements in flushing tanks or water waste preventors substantially
as described and shewn.
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicants.