Year: 1887

page_text: Date of Application, 15th Jan., 1887
Complete Left, 14th Oct., 1887
Complete Accepted, 18th Nov., 1887
I, OSCAR ELPHICK, of Doulton's Sanitary Engineering Works, Lambeth, in the
County of Surrey, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide a siphon delivery to ordinary double or
single valve flushing cisterns.
For this purpose I form at the bottom of the cistern a chamber having a siphon
leading from it to the delivery pipe. The cistern and chamber are connected together
by a valve worked by the handle or pull of the closet or the like, and the opening of
this valvo is made of sufficient size to allow the contents of the flushing cistern to
quickly pass into the siphon chamber, so that, even if the handle is released almost
immediately after being pulled down the time is sufficient for the water to transfer
itself from the one receptacle to the other. From the siphon chamber the water is
delivered by means of the siphon.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Water Waste Preventers.
I, OSCAR ELPHICK of Doulton's Sanitary Engineering Works, Lambeth. in the
County of Surrey, Engineer, 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 this invention is to provide a siphon delivery to ordinary double or
single valve flushing cisterns.
For this purpose I form at the bottom of the cistern a chamber having a siphon
leading from it to the delivery pipe. The cistern and chamber are connected together
by a valve worked by the handle or pull of the closet or the like, and the opening of
this valve is made of sufficient size to allow the contents of the flushing cistern to
quickly pass into the siphon chamber, so that, even if the handle is released almost
immediately after being pulled down the time is sufficient for the water to transfer
itself from the one receptacle to the other. From the siphon chamber the water is
delivered by means of the siphon.
In order that my said invention may be fully understood and readily carried into
effect I will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal and vertical section of a double valve siphon delivery
flushing cistern constructed in accordance with my invention.
Figure 2 is a transverse vertical section; and
Figure 3 is a plan of the same.
a is a compartment which the water first enters; it is supplied by the valve b and
this is controlled in the usual way by the ball float c. d is the measuring cistern
from which the water is delivered, at each flushing operation, and of a capacity to
contain the quantity which it is intended to expend. e is the chamber containing
the siphon which delivers the water to the water closet pan or other vessel which is
required to be flushed. The siphon is marked f. The compartment a communicates
with the cistern d by a passage to which the valve 9 is fitted and the cistern d
communicates with the siphon chamber e by a passage which is opened and closed by
a valve h.
i is a transverse horizontal axis carried in bearings upon the sides of the apparatus ;
it has upon it an arm to which a chain may be connected and which on being pulled
causes the axis i partially to rotate; so the apparatus is brought into action. The
end wall of the cistern serves as a stop to limit the downward movement of the arm i²,
and a block of india rubber is inserted into the arm to prevent noise when the arm
strikes проп the upper edge of the cistern.
The end of the arm i is shown in Figure 1 and the india rubber block is marked ;*.
This and other parts are indicated in Figure 1 by dotted lines for the section is taken

page_text: in such a position that these parts do not rightly belong to the figure. The axis i has
also other arms and ;-the-arm--is-connected by a link with the valve grand
when the apparatus is at rest it holds this valve suspended so that there is free passage
for the water from the compartment a to the cistern d. The arm carries a weight
which causes it to descend whenever it is left free to do so; it also has a link k jointed
to it and this link descends to the valve h. is an air pipe which rises from the top
of the chamber e to above the level at which the water, can stand in the cistern.
a connection for an overflow-pipe.
m is
The valve has will be seen is of unusually large area and when it is lifted it allows
the whole contents of the cistern d to descend almost instantly into the chamber e.
The link passes freely-through an eye in the stirrup of the valve and it receives
a nut at its lower end. The link is similarly connected with the valve g.
When the chain connected with the arm is pulled and the axis i thereby rotated,
the valve g is first closed so that no water may pass direct from the compartment a
to the outlet. Then the further movement of the axis causes the valve to lift and
whether it be kept up a long or a short time the whole contents of the cistern d passes
into the chamber e. The siphon f in the chamber e is thus submerged and so it is at
once charged and brought into action; it then delivers the water to the outlet or to
the pan or vessel to be flushed at a suitable speed. Thus both the speed of delivery
and the quantity delivered are rendered practically independent of the duration of
the hand action upon the axis i (through the chain attached to the arm i¹ or other like
suitable connection) and dependent only on the capacity of the cistern d and the
dimensions of the siphon f.
Although I prefer the double valve arrangement which I have shown by the
drawings it is obvious that my invention is capable of being applied also to single
valve flushing, cisterns. Thus the valve g might be dispensed with and in place
thereof provision might be made for sustaining the arm of the ball float c by a
connection with the axis i whilst the valve h is lifted.
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 what I
claim is
1. My improvements substantially as described in water waste preventers consisting
in combining with the cistern thereof a chamber which receives the water from the
cistern when a valve is lifted and which afterwards delivers it through a siphon to the
closet pan or other vessel which it is required to flush.
2. A water waste preventer substantially as herein described and represented by
the annexed drawings.