Year: 1899

page_text: I, HENRY LEWIS DOULTON, of the Lambeth Sanitary Engineering Works,
Lambeth, in the County of Surrey, Potter, do hereby declare the nature of this
invention to be as follows:-
This invention relates to valve water closets. The supply valve utilized is
one having a cylindrical chamber provided with an outlet at each end, same
may be called respectively A and B. An inlet is arranged at end A. The
outlet at end A leads to the inlet arm of the closet basin and the outlet at end B
leads to a press down or other action valve which may be called C & from thence
to the closet overflow or some convenient waste. Working in the chamber is a
piston which forms the valve by fitting upon a prepared outlet seating at end A.
A small port connects the inlet with end B, the amount of water passing being
limited if desired by a regulating screw. Attached to the piston & protruding
through the valve is a spindle, the external end of which is in communication
with a lever which in it's turn acts upon the discharge valve of the closet.
When at rest the piston is held to the outlet seating at A by the pressure of
water passing through the port to end B of chamber & acting there upon the
piston. On opening the valve C this pressure is released, the water finding it's
way through outlet at B to the waste before mentioned. In consequence of this
action the pressure of water at A now asserts itself forcing the piston from it's
seating & allowing water to flow to the closet pan for flushing purposes. In
moving, the piston carries with it the spindle which opens the closet discharge
valve through the agency of the lever already described.
After use the discharge valve may be closed,
(1) By means of a weight attached to the lever;
(2) By the adoption of water pressure communicated to the lever by a spindle &
piston working in a second cylindrical chamber & having it's upper & lower
parts connected respectively with the upper & lower parts of the first chamber &
therefore working simultaneously with it; or
(3) By a combination of both these forces.

page_text: invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
-
This invention relates to valve water closets. The supply valve Figure 1 has
An inlet E allows the
a cylindrical chamber D provided with outlets A and B.
water supply to enter the valve. The outlet A leads to the inlet arm of closet
basin and the outlet B leads to a press down (or other action) valve C and from
thence to the closet overflow or some other convenient waste. Working in the
chamber is a piston F which forms the valve by fitting upon the prepared
outlet seating G. A small port H connects inlet E with outlet B, the rate of
How of the water passing being controlled by a regulating screw J, if desired.
Attached to the piston F and protruding through the valve is a spindle K the
external end of which is in communication with a lever L which in it's turn acts
upon the discharge valve of the closet. When at rest the piston F is held to the
seating G by the pressure of water passing the port H to chamber I) and acting
there upon the piston F. On valve C being opened this pressure is released,
the water finding it's way through outlet B to the waste before mentioned.
The pressure of water now asserts itself on the opposite side of piston F, causing
the valve to open and allowing the water to flow to the closet pan for flushing
purposes. In moving, the piston F carries with it the spindle K which opens
the closet discharge valve as already described.
The discharge valve may be closed:
(1) By means of a weight attached to the lever L.
(2) By the adoption of water pressure communicated to the lever L by a
piston M and spindle N working in a second cylindrical chamber O as shewn in
Fig. 3. In this case the upper and lower ends of chambers 0 and D are
respectively connected by passages P and Q consequently the water pressure
exerted in chamber D finds it's way by passage P to chamber O and the piston M
is forced down simultaneously with the closing of the piston F on to it's seating G.
The pressure on piston M is communicated by spindle N to lever L which when
depressed closes the closet discharge, or
(3) By a combination of both forces.
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 valve water closets, the opening of the supply and discharge valves in
one operation by means of a press down or other action valve substantially as
described.
2. In valve water closets, the closing of the discharge valve simultaneously with
the supply valve by a force wholly or partly communicated from the supply
valve substantially as described.
3. Fittings substantially as described and shown in drawings.