Improvements in Water-waste Preventers.
Year: 1899

page_text: I, CHARLES DAVID MARTIN, of Charlotte Place, North Street, Clapham, in the
County of Surrey, Engineer do hereby declare the nature of this invention to be
as follows:-
This invention relates to an improved water-waste preventer for use with
syphon-discharge cisterns, the object being to obtain a silent and economical
action and to simplify construction whereby they can be more easily kept in order.
According to my invention I place in the cistern near the bottom thereof a flat
chamber having on its under side a lift valve of any suitable type, and on its
upper side immediately opposite to the said valve a cylinder fitted with a piston
which is connected by means of a suitable link or its equivalent with the ordi-
nary counter-balanced operating lever. In the upper side of the flat chamber in
juxtaposition to the aforesaid cylinder is an opening for the attachment of the
syphon pipe which is connected to the discharge in the ordinary manner by any
suitable form of connection.
1000
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Chartered Patent Agent, 70, Chancery Lane, London, W.C.,
Agent for the Applicant.
Improvements in Water-waste Preventers.
I, CHARLES DAVID MARTIN, of Charlotte Place, North Street, Clapham, 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 ascer-
tained in and by the following statement:-
This invention relates to an improved water waste preventer for use with syphon
discharge cisterns, the object being to obtain a silent and economical action and
to simplify the construction whereby they can be more easily kept in order.
In the accompanying drawing which illustrates one form my invention may
assume;
Figure 1 is a view in side elevation partly in section of a syphon discharge
cistern fitted with the present invention, and
Figure 2 is a view in plan thereof.
Throughout both views similar parts refer to like letters of reference.
At or near the bottom of below the normal water level and within the cistern A

page_text: is placed a flat chamber B having on its under side a lift valve C of any suitable
type and on its upper side immediately opposite the said valve a cylinder D) fitted
with a piston d which is connected by means of a link or its equivalent with
the ordinary counterbalanced operating lever E.
The cylinder D is fitted at its top edge with a flange or ring cap d² not only
for the purpose of preventing dirt or grit getting down between the piston d and
the cylinder 1) but also for rendering the discharge silent by preventing an in-
rush of air between the piston and the cylinder whilst the water is being dis-
charged, a small hole in the upper part of the cylinder for the admission of air
thereto may in some cases be provided.
In the upper side of the flat chamber B in juxta position to the cylinder D is
an opening for the attachment of the syphon pipe which is connected to the
discharge pipe in the ordinary manner by any suitable form of connection.
Those parts illustrated to which no special reference has been made present no
novel features and are of the usual construction.
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) In a water waste preventer for use with syphon discharge cisterns, the
employment of a closed chamber within the cistern and below the normal water
level therein, provided on its under side with a lift valve and on its upper side
with a cylinder provided with a top flange or ring cap and with a piston con-
nected to and operated by a counterbalanced lever, the upper side of said cham-
ber also being provided with an opening for the attachment of the syphon dis-
charge pipe, as set forth.
(2) A water waste preventer, constructed and arranged, substantially as herein-
before described and shown.
τι και οινου.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Chartered Patent Agent, 70, Chancery Lane, London, W.C.,
Agent for the Applicant.