Improved Flushing Apparatus for Water-closets.
Year: 1890

page_text: Date of Application, 28th Feb., 1890
Complete Specification Left, 26th Nov., 189C-Accepted, 27th Dec., 1890
PROVISIONAL SPECIFICATION.
Improved Flushing Apparatus for Water-closets.
I, WILLIAM HENRY HAWKINGS, of 38, Flora Street, Plymouth, in the County
of Devon, Plumber, do hereby declare the nature of this invention to be as
follows:-
My invention relates to flushing apparatus for wash out and other water-closets
from which the water is discharged under the pressure of air.
In carrying out my invention I provide an air tight tank or cistern of any suitable
size or shape. In one side of this tank or cistern near the bottom is a hole into
which hole a fitting having a supply valve connected with the water main is
introduced. The fitting likewise contains the discharge valve.
With this arrange-
ment as water flows into the tank the air therein is compressed to a pressure
corresponding with the pressure in the main. On the discharge valve being opened
the water is forcibly ejected. The water having escaped the discharge valve drops
onto its seat and the tank refills.
The chief advantage of my invention is that no ball tap or fittings of any kind
are required inside the tank.
The tank can be fixed above or below the seat of the water-closet.
COMPLETE SPECIFICATION
Improved Flushing Apparatus for Water-closets.
I, WILLIAM HENRY HAWKINGS, of 38, Flora Street, Plymouth, in the County
of Devon, Plumber, 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 flushing apparatus for wash out and other water-closets
from which the water is discharged under the pressure of air.
In carrying out my invention I provide an air tight tank or cistern of any suitable
size or shape. In one side of this tank or cistern near the bottom is a hole into
which hole a fitting having a supply valve connected with the water main is
introduced. The fitting likewise contains the discharge valve. With this arrange-
ment as water flows into the tank the air therein is compressed to a pressure
corresponding with the pressure in the main. On the discharge valve being opened
the water is forcibly ejected. The water having escaped the discharge valve drops
onto its seat and the tank refills.
The tank can be fixed above or below the seat of the water closet.
To enable my invention to be fully understood I will describe the same with
reference to the accompanying drawing, in which
Figure 1 is an elevation of my improved flushing apparatus in conjunction with a
water-closet pan.
Figure 2 is a side elevation of the same, and
Figure 3 is a plan.
Figures 4, 5, 6 and 7 are views of details hereinafter described.
a is the air-tight tank or cistern having in one side near the bottom a hole, and 6
is a fitting or casing, one branch of which is screwed into or secured in the said hole
while another branch has connected to it a pipe c in communication with a water
supply while a third communicates with a pipe d connected with the flushing nozzle
Price 61

page_text: of the
pan of the water closet. e is the discharge valve which controls the passage
through the pipe d.
The stem of the discharge valve e is provided with a cup leather and is connected
by a rod (passing through a stuffing box in the fitting 6 and carrying a weight g)
with a lever h supported by a block i. The valve seating is provided with an india
rubber washer.
The upper part of the valve fitting or casing 6 is provided with an opening which
communicates by means of a pipe with the atmosphere and allows air to enter the
said casing or be discharged therefrom according to the downward or upward
movement of the valve whereby its closing and opening are unimpeded.
Figures 4 and 5 are views of the discharge valve and stem and Figures 6 and 7
are sectional views shewing the discharge valve in its closed and open positions
respectively.
The operation of the apparatus is as follows:-
The discharge valve e being closed water flows through the supply pipe e into the
tank a, thereby compressing the air contained therein to a pressure corresponding
with the pressure of the water supply. On pulling the lever the discharge valve e
is opened whereby the water is forced out of the tank through the flushing pipe d
into the water closet pan by the compressed air. The water having escaped the
discharge valve e drops onto its seat and the tank refills.
The discharge valve e is equilibrated and to accomplish this the upper part of
the valve shell or cylinder through which the valve stem passes is contracted or
diminished in diameter so that the area of the cup leather is less than that of
the valve whereby the pressure of water assists to close the valve.
The advantages of my invention are that the tank or cistern can be fixed
under the seat of the water closet, which has not been possible with flushing
apparatus as hitherto constructed; a stronger flush of water is given and no ball
tap or fittings of any kind are required inside the tank.
It will be obvious that if desired my improved apparatus can be fixed above the
water closet seat.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
(1.) Flushing apparatus for water-closets comprising an air-tight tank con-
nected with the water supply in such a manner that as the water flows into the
tank the air therein is compressed, such compressed air being subsequently used
for forcing the water into the pan to flush the same, substantially as described.
(2.) The use with a flushing apparatus such as that described in claim 1 of a
discharge valve the upper part of the cylinder or casing of which is contracted
or diminished in diameter substantially as and for the purpose hereinbefore
described.
(3.) The improved flushing apparatus for water closets hereinbefore described
and illustrated in the accompanying drawings.
Dated the 26th day of November 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.