Improvements in Water Waste Preventers.
Year: 1890

page_text: Date of Application, 26th Apr., 1890
Complete Specification Left, 11th June, 1890-Accepted, 26th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Water Waste Preventers.
I FRANK STEPHEN STREETER, of 44 Amhurst Road, Hackney in the County of
Middlesex, Gas Engineer do hereby declare the nature of this invention to be as
follows:-
My Invention relates to water-waste preventers for water-closet service apparatus:
and it has for its object to ensure the unfailing supply of a sufficient, but limited
quantity of water each time the pull handle is operated so as, on the one hand, to
ensure an adequate flush, and, on the other hand, to guard against waste, which,
without such controlling apparatus, is apt to occur, more especially in houses provided
with a constant service.
My Invention consists in operating the delivery valve controlling the delivery of
the water to the closet through the medium of a sort of dash pot" or hydraulic
connection whereby the closing of the delivery valve is independent of the pull handle
and is regulated only by the flow of water through a contracted passage so that the
valve will close automatically in a predetermined time sufficient for the flushing of
the closet and so cut off the delivery notwithstanding that the pull handle may not
be released. The delivery valve and handle are respectively connected to a cylinder
and to a piston working loosely therein, the cylinder working loosely as a piston in
an outer vertical cylinder placed in the cistern over the delivery valve seat, the inner
cylinder being closed at one end so that, upon the piston being raised, the inner
cylinder and delivery valve will be raised also owing to the difference of pressure
within and without the movable cylinder. The fixed cylinder is closed at bottom and
provided with an inwardly opening check valve to admit water beneath the movable
cylinder when the latter is raised to open the delivery valve and prevent its escape
otherwise than as hereafter described when the delivery valve is closing.
The
delivery valve having been opened at once commences to close by gravity at a speed
dependent on the escape of water either between the movable and fixed cylinders, if
the pull handle be at once released, or both between those cylinders and also between
the piston and movable cylinder, if the pull handle be retained. The connection
of the parts may be reversed by the delivery valve being attached to the piston and
the pull handle to the movable cylinder. In either case, the movable cylinder is
preferably closed at that end by which it is attached to the delivery valve or to the
pull rod, as the case may be, and the check valve of the outer cylinder may be
either at the bottom or at the top in which latter case it would open outwards instead
of inwards.
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COMPLETE SPECIFICATION.
Improvements in Water Waste Preventers.
I, FRANK STEPHEN STREETER, of 44, Amhurst Road, Hackney, in the County of
Middlesex, Gas 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 :-
My Invention relates to water-waste preventers for water-closet service apparatus ;
and it has for its object to ensure the unfailing supply of a sufficient, but limited,
quantity of water each time the pull handle is operated so as to ensure an adequate
flush and yet guard against waste which without such controlling apparatus is apt
to occur more especially in the case of a constant service. The apparatus of my

page_text: invention is of that kind in which the valve which controls the delivery of the water
to the closet is not in positive connection with the pull handle but is operated there-
from only through the medium of fluid pressure in such manner that whether the
pull handle be let go or not the valve is free to close independently thereof the valve
closing by its own gravity under the control of a sort of "dash pot," the action of
which is dependent on the flow of water through a contracted passage. The con-
struction of the apparatus is such that the operation of the valve is not liable to be
impeded by friction, the parts working quite freely together so that the valve will
close automatically and with certainty in a predetermined time sufficient for the
delivery of enough water for flushing the closet.
Reference is to be had to the accompanying drawings, forming part of this
specification, wherein figures 1 and 2 are central vertical sections of one form of the
apparatus shewing the valve in the open and closed positions respectively. The same
letters of reference indicate like parts in both figures.
A is the delivery valve and B its seat in the bottom of the cistern C. D is a
cylinder working loosely as a piston in an outer vertical cylinder E placed in the
cistern on a cage F over the delivery valve seat. The cylinder D is closed at one
end and open at the other and is connected either to the delivery valve A or to the
wire or other connection H from the pull handle. G is a piston working loosely in
cylinder D and connected to the other of the two H or A to which the cylinder Dis
not connected. In the example shewn, the cylinder D is closed at bottom and con-
nected to the valve by rod a whilst the piston rod g is connected to wire H, this
being the preferred arrangement. In either case the action is such that upon the
part connected to H being raised the other part connected to the valve A will be
raised also, owing to the difference of pressure within and without the movable
cylinder D, the independent descent of the valve A being controlled only by the
leakage of water as hereafter described.
The fixed cylinder E is closed at bottom, save an opening over which is seated an
inwardly opening check valve I, to admit water quickly below the cylinder D when
the latter is raised to open the delivery-valve and prevent the escape of the water
otherwise than by leakage, as hereafter mentioned, when the delivery valve is closing.
This valve is a disc of india rubber fixed to a metal boss through which the valve
rod a slides freely.
The valve A having been raised at once commences to close by gravity at a speed
dependent on the escape of water either between the movable and fixed cylinders DE,
if the pull handle be at once released, or both between those cylinders and also
between the piston G and movable cylinder D, if the pull handle be retained. The
movable cylinder is preferably closed at that end by which it is attached to the
delivery valve or to the pull rod, as the case may be. The check valve I might be
at the top of the outer cylinder E; in which case it would open outwards instead of
inwards, to permit the outflow and prevent the inflow of water, the cylinder being
open at bottom.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;
In a water-waste preventer, the combination of the loosely-fitting piston and the
movable and fixed cylinders (the two former being connected with the pull handle
and the delivery valve for operation as described) and of the check valve opening
during the lifting of the delivery valve and closing during its descent so as to make
the former motion practically free and the latter motion dependent on leakage
between the cylinders or between the cylinders and piston, as described.
Dated this 11th day of June 1896.
F. S. STREETER.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.