Year: 1888

page_text: Date of Application, 27th Jan., 1888
Complete Specification Left, 27th Oct., 1888
Complete Specification Accepted, 30th Nov., 188
do hereby declare the nature of this invention to be as fotOWS:--
My invention relates to improvements in Water Closets, and refers more particularly
to trapless closets, (but it may also be applied to other like purposes such as Urinals),
the object being to make the valve selfacting both in opening and closing.
In constructing a water closet for example according to my invention, I make a
compartment or Hoat chamber in a convenient position at the side or back of the basin,
but always directly over the vertical discharge pipe.
The top of the float chamber is closed, and in the floor and centrally over the
discharge pipe an opening is made to admit the passage of the valve rod, and
near the top or cover is a water supply opening connected with the Basin
supply pipe.
The valve which is preferably provided with an elastic face in its normal condition
rests upon the seating formed on the top of the discharge pipe and keeps it closed.
The valve rod is hollow or tubular and passes upwards through the opening in the
floor of the float chamber, which it fits-but it is not essential that the fitting should
be watertight.
The tubular valve rod above mentioned is preferably provided with a number of
openings at its lower end, and the top part which projects some distance into the float
chamber is left open.
The float is a hollow chamber preferably made of suitable sheet metal, closed at
the top but open on its underside and conforming to the shape of the float chamber
which it nearly fills laterally-but a considerable space is left for a vertical movement.
The top of the vertical and hollow valve rod-passes into a central tubular compart-
ment of rather larger diameter than the rod itself, and is firmly secured and held at a
little distance from the top of the float-so that there is a free means of communication

page_text: through the said central compartment of the float, down the valve rod, and through
the openings therein into the basin-it will also be understood that the action of the
float is to raise or lower the valve to which it is rigidly connected.
The action of the apparatus is as follows
First premising that when the closet is at rest the discharge pipe is closed by the
valve and a sufficient supply of water is retained in the basin-the float also is in its
lowest position in the float chamber.
On admitting a supply of water to flush the basin a portion sufficient for the purpose
is discharged into the float chamber, and causes the float to rise quickly to the top,
lifting the valve and opening the discharge pipe.
The water rising in the central tubular compartment of the float, passes into the
hollow valve rod and quickly syphons the water out of the chamber causing the float
to fall and the valve to close the discharge pipe.
Dated the 25th day of January 1888.
ROBT. F. DRURY,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Water Closets, being also Applicable to other
Purposes.
I, JOSEPH ANDERSON of Wortley near Sheffield in the County of York, 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 improvements in Water Closets, and refers more particularly
to trapless closets (but it may also be applied to other like purposes, such as Urinals)
the object being to make the valve selfacting both in opening and closing.
I have illustrated my invention in the annexed sheets of drawings; like letters of
reference refer to like parts in any of the figures.
Fig. 1, is a sectional elevation of a watercloset made according to my invention.
Fig. 2, is a similar elevation of a watercloset being a modification of that shown in
Fig. 1.
Fig. 3, is a sectional elevation of a pipo trap made according to my invention.
In constructing a Watercloset according to my invention as shown in Fig. 1, of the
drawings, i make a compartment of float chamber A, in a convenient position at the
side or back of the basin B, but always directly (or nearly 50) over the opening in
the discharge pipe C.
A water
The top of the float chamber A is closed, and in the floor and centrally over the
discharge pipe C, an opening is made to admit the passage of the valve-rod D.
supply opening E placed near the top or cover is connected either directly or indirectly
with the basin supply pipe F.
The valve G which is preferably provided with an elastic face, rests upon the
seating formed on the top of, or entrance to the discharge pipe C, thus keeping
it closed.
The valve-rod D, is made hollow or tubular, and sometimes made of large
diameter, approaching or even equal to the diameter of the valve, it passes upwards
through the opening in the floor of the float chamber A, which it fits, but it is not
essential that the fitting should be absolutely watertight.
The tubular Valve rod D, above mentioned is preferably left open at its lower end
as shown and the top part which projects some distance into the float chamber is also
left open.
The float H is a hollow chamber which is preferably made of suitable sheet metal,
is closed at the top and open underneath, it conforms but not necessarily, to the shape
of the float chamber A, which it nearly fills laterally, but a considerable space is left
for a vertical movement.
The top of the hollow valve rod D, passes into a central tubular compartment I of
rather larger diameter than the rod itself, and is firmly secured and held at a little
distance from the top of the float H, so that there is a free means of communication

page_text: through the said central compartment of the float, down the valve rod, and through
its lower open end into the basin, thus forming a syphon; it will also be understood
that the action of the float is to raise or lower the valve to which it is rigidly
connected.
The action of the apparatus is as follows:
First premising that when the closet is at rest the discharge pipe is closed by the
valve, retaining a supply of water in the basin as indicated by the dotted lines, the
float H is also in its lowest position in the empty float chamber A. On admitting a
supply of water to flush the closet basin B, an amount of water sufficient for the
purpose is discharged through the pipe J into the float chamber A, cansing the float H
to rise quickly, lifting the valve G, a sufficient height to accomplish the rapid and
efficient discharge of the contents of the basin.
The water continuing to rise in the central tubular compartment I of the float H
flows over into the hollow valve rod D, which quickly syphons the water out of the
chamber A causing the float to fall and the valve to again close the discharge pipe.
In the modification shown in Fig. 2, the principle remains the same, but instead of
the valve rod being tubular and forming part of the syphon 1 use a solid, or closed
tubular valve rod, and an ordinary syphon K.
In the application of my invention to form a trap for the pipe of a lavatory for
example, as shown in Fig. 3, in which the rapid and high lift of the valve is not
absolutely necessary, I use a valve G, a float chamber A, and float H, and a syphon K.
When the trap is flushed with water it rises through the syphon pipe into the float
chamber A and in raising the float also raises the valve which immediately empties the
trap, and brings the syphon into action, which empties the float chamber.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declaro that what I
claim is
1. A Watercloset, constructed with an automatic valve lifting and closing apparatus,
substantially as hereinbefore described and illustrated in Fig. 1.
2. In combination with a watercloset, the valve G or its equivalent, float chamber A,
float H, tubular valve rod D, and compartment I and supply pipe J all constructed
and acting together for the purposes as herein before specified, and as shown.
3. The improvements in waterclosets consisting in the combination of the several
parts which constitute its automatic valve action, substantially as hereinbefore described
and as shown in Fig. 2.
4. A selfacting trap constructed substantially as hereinbefore described, and as
shown in Fig. 3.
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield,
Agent for Applicant.