IMPROVEMENTS IN WATER CLOSET VALVES
Year: 1884

page_text: COMPLETE SPECIFICATION.
I JOSEPH KRETSCHMANN, Engineer of N° 5 Am Ostbahnhof in the City of
Berlin and German Empire do hereby declare the nature of my Invention for
IMPROVEMENTS IN WATER CLOSET VALVES and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the following
statement:
My invention relates to an improved valve adapted to use in water closets to
regulate the flow of water supplied to the basin for the purpose of cleaning the
same after use.
The object of tho invention is to provide a simple and effective valve which will
operate at suitable times automatically and by the use of which the exact amount
of water to be supplied to the basin may be regulated, which said invention
consists of the novel devices and combination of devices as will be described and
claimed.
Reference will be made to the accompanying drawings in which Figure 1
is an outside view of the attachment and Figure 2 a vertical section through
the same.
Liko letters refer to liko parts in each view.
The invention is applicable to those water closets in which the valve is operated
from the seat, through the medium of a piston rod A situated at a suitable position
below the same so as to be brought into contact therewith upon the depression of
the seat, by the weight of the person occupying it.
The piston rod A is passed through a central opening formed in a screw threaded
cap Badapted to fit snugly upon the top of a cylinder C and form a close joint
therowith,
The said rod A is screw threaded upon its upper end and around it is passed
a collar D adjustable thereon and by the use of which the vertical play of the rod
may be limited.
tho
Formed with or secured to rod A within cylinder C are two pistons E E',
piston E being situated preferably at the extreme lower end of the rod and
piston E¹ at suitable distance thereabove, by which arrangement the cylinder C
is divided into two chambers or spaces a a', one below piston E and the other
between it and piston E¹.
There is an opening formed through piston E in which is situated an upwardly
opening valve b limited in its movement by a suitable stop c secured to the piston
rod A
Through the opening thus closed by valve b, communication is at suitable
intervals formed between the chambers a a' of cylinder C as will be described.

page_text: An opening is formed through one side of cylinder C through which com-
munication is formed with an auxilliary cylinder F; communication between the
two cylinders being also established through an opening e situated as shown with
respect to opening d, the size of this opening e being regulated through the medium
of a pointed screw situated as shown.
At its lower end cylinder F opens into a nozzle G connected with the water
supply and is provided with a screen f¹ by which the water entering the said
cylinder is freed of all foreign substances.
Situated within the main cylinder C is a valve H adapted to rest upon its scat g
this seat being so arranged as to separate the nozzle G referred to from the nozzle K
which is suitably connected with the basin of the water closet, and further the
position of the valvo upon its seat is such as to expose it to the action of water
entering through the nozzle G and to adapt it to be raised thereby.
The operation of the device is as follows.
The necessary adjustments are made with respect to collar D to regulate the
movement of the pistons and pointed screw to determine the flow of water from
the auxilliary to the main cylinder.
When the closet is not in use the valve H will be forced to its seat by the
pressure of water which has entered the space a through the opening e.
--
The scat being then depressed the piston rod is acted upon and the pistons
forced down.
This action will result in the opening of the valve b and the water in space a
will escape through piston E to space a, there being at all times sufficient water
left in space a to hold the valve H to its seat as long as pressure is applied
to the seat of the water closet and through it to the piston rod and pistons.
As the occupant of the seat rises and thereby removes the pressure the water
entering nozzle G as indicated by arrow 1 will raise the valve H and at the same
time the pistons and their rods. In this way communication is formed between
nozzles G. K and the water carried to the basin as indicated by arrow 2.
As the water enters nozzle G a portion of it will rise in cylinder F and pass
therefrom through the opening e whereby the space a is again gradually filled
until there is sufficient pressure to again force valve H to its seat, and shut off the
flow of water.
The water described as passing from space a through piston E will be partially
discharged through opening d to the cylinder F and will serve to keep the meshes
of screen f¹ clear.
It will be understood that by the arrangement of parts as described, the play
or stroke of the pistons may be regulated, and further that by suitable adjustment
of the scrow the length of time required to fill the space a for lowering the valve
may be regulated, suitable means being thus provided for determining the exact
quantity of water to be discharged into the basin after the use of the same.
Having now particularly described and ascertained the nature of my said
invention and the manner of performing the same I declare that what I claim is :-
1st The device for water closets described consisting of a main and an auxilliary
cylinder, a valve situated within the main cylinder, and an opening situated above
the valve to form communication between the two cylinders substantially as and
for the purpose described and shown in the accompanying drawing.
2. The device for water closets described consisting of a main and an auxilliary
cylinder, a valve situated within the main cylinder, an opening situated above
the valve to form communication between the two, and a set screw for regulating
the opening as and for the purpose described and shown in the accompanying
drawing.
3rd In the device described, the combination with a valve of a main and an
auxilliary cylinder communicating thereabove, a piston provided with a valve, a
piston rod and a hinged seat as and for the purpose described and shown in the
accompanying drawing.

page_text: 4th In the device described the combination of a valve of a main and an
auxilliary cylinder communicating with each other and with a water supply
with two pistons one provided with a valve, a piston rod and a hinged scat
substantially as and for the purpose set forth and shown in the accompanying
drawing.
5th In the device described the combination with a main cylinder and a valvo
situated therein of an auxilliary cylinder communicating therewith above the valvo
and provided with a screen as and for the purpose set forth and shown in the
accompanying drawing.
6-In the device described, the combination with a main and an auxilliary
cylinder, a valve situated within the main cylinder, two pistons one provided with
a valve, a piston rod a hinged seat and an adjustable collar mounted upon the
piston rod substantially as and for the purpose described and shown in the
accompanying drawing.
Dated this 6th day of October 1884.
Witnesses,
EUGEN STUTZER.
⚫ ANTHONY STEFFEN.
JOSEPH KRETSCHMANN.