IMPROVEMENTS IN WATER CLOSET VALVES
Year: 1885

page_text: I, JOSEPH KRETSCHMANN of No 10 Johanniter Strasse in the City of Berlin
and German Empire, Government Builder, do hereby declare the nature of my
Invention for IMPROVEMENTS IN WATER CLOSET VALVES 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 the construction of an automatic valve for water closets
and other purposes in order to prevent waste of water and limit the rinsing to a
certain quantity whereby I attain a certain and effective action of the valve and
prevent all water from passing upwards through the cover to the same.
The accompanying drawing represents two modifications of my invention.
Figure 1 is the vertical section of an automatic water closet or other valve.
Figure 2 the vertical section of a modification of my improved valve in com-
bination with a device for previously wetting or rinsing in order to loosen the
excrements from the walls of the basin or vessel before the regular rinsing water
commences to play.
The closet valve consists of the cylinder a in which the inverted cup, hollow
piston or internal cylinder c moves up and down. This said inverted cup or hollow
piston or internal cylinder c is depressed by means of the pressure bolt or stem b
and can be connected to the same (Figure 1) or not (Figure 2).
The upper end of the inverted cup, hollow piston or internal cylinder c is pro-
vided with a suitable packing consisting of a leather collar d plate e and packing
ring which latter is in contact with a suitable seat in the cylinder a.
parts de fare held together by means of the screw nut g.
The
The said inverted cup hollow piston or internal cylinder c is provided with pro-
jecting flanges h and i whereby the flange h is provided with a packing collar d
and whereby the said inverted cup or hollow piston is provided with a number of
ribs k one of which can be made somewhat larger than the others and contains the
small boring or canal which is more or less closed by the adjusting screw m and
by means of which the interior of the inverted cup is placed in communication with
the service.
The valve with its packing collar o and packing ring n rests on the valve
seat w whilst the parts are held together by means of the screw washer or nut p
and the screw p¹.
My improved closet valve operates as follows:-
If the inverted cup c is depressed by means of the pressure bolt or valve stem b
the same is forced over the valve vor the said valve v compelled to enter the
inverted cup c and press the water contained in the inverted cup c above the said
valve out through the canal into the supply pipe .

page_text: As soon as the pressure is removed from the stem 6 the pressure of the column
of water in the supply pipe x will press against the flange i of the inverted cup or
hollow piston c and drive the same upwards so that the valve v is also caused to
rise in consequence of the vacuum created in the inverted cup c above the said
valve so that a free passage for the water from the supply pipe to the closet is
left under the said valve v-This passage of water continues until the water
entering the interior of the inverted cup c through the canal or boring 1 causes
the valve to sink, presses the same onto the valve seat w and cuts off all con-
nection between the pipes x y―The supply to the closet can be regulated by means
of the screw m and the nut g on the valve stem b.
The closet valve as shown in the vertical section Figure 2 is a modification of
the closet valve shown in Figure 1 whereby the valve stem b' is not fixed to the
inverted cup or hollow piston c' but simply presses against the plate or disc g-
The collar d represented in Figure 1 is omitted in Figure 2 whereas the packing ƒ of
the inverted cap or hollow piston c¹ is pressed against an appropriate seat in the
cover of the outer cylinder or casing-In order to assure that any water penetrating
above the inverted cup or hollow piston c¹ cannot escape upwards I arrange a
canal p on the wall of the casing or outer cylinder a¹ so as to connect the space
between the lid of the casing and the top of the hollow piston or inverted cup c¹
with the service pipe y' in order that any water which may collect in this space
can be employed for previously wetting the closet basin and thus prevent the
excrement from clinging to the same.
It is evident from the foregoing that the above mentioned inverted cup or hollow
piston can be altered in form without departing from the tenor of my invention so
long as an internal valve is employed in the same.
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
с
1. An automatically acting water closet valve with predetermined quantity of
water for rinsing consisting of the cylinder or casing a in which the inverted cup,
hollow piston or internal cylinder c with its flanges h and i is moved up and down
by means of the pressure bolt or stem b consisting further of the valve v which
rests against the valve seat w when the closet is not being used and which reaches
at its upper end into the hollow piston or inverted cup c so that the stem b forces
the hollow piston or inverted cup c over the valve and on releasing the pressure on
the stem b will carry up the valve v with it so as to allow water to flow from the
supply pipe into the pipe y whereas the gradual closing of the valve is attained
by means of the water passing by means of the supply pipe x through the canal
above the valve v or any mere modification of the same substantially as described
above and shown in the accompanying drawing.
2. The modification as represented in Figure 2 whereby the upper part of the
cylindrical space a¹ is connected with the pipe y' leading to the water closet basin
by means of the canal t substantially as described above and shown in the
accompanying drawing.