Improvements in Fluid Pressure Valves.
Year: 1897

page_text: Improvements in Fluid Pressure Valves.
I, HERMANN JACOB, of Langgasse, 18, Danzig, in the Empire of Germany,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a delivery valve for use in pipes containing fluids
under pressure, and more particularly with water pipes, such valve being adapted
to replace the ordinary delivery cock.
My improved, delivery valve possesses the advantage that it closes automatically
after use, under the action of the fluid under pressure, thereby preventing the
possibility of any waste of water occurring owing to the valve being inadvertently
left open
In addition to this, the flow of the fluid is rendered quiet and steady.
The valve may be so constructed as to open automatically should any diminution
of pressure occur.
In carrying the invention into practice the casing is provided with two
tubular connecting pieces or nozzles by one of which the same is connected to,
or inserted into the conduit or pipe. The connection or insertion may be effected
in any appropriate manner; these tubular connecting pieces or nozzles therefore
must be constructed to suit the conditions and the material employed in the
piping.
a spindle or axle.
out-flow opening
The flap or plate
similar material,
In the interior of the casing a flap is pivotally arranged on
Said flap is hung or arranged so as to be forced against the
or valve seat by the pressure of the fluid traversing the valve.
may receive upon its base a disc or washer of india rubber or
so as to ensure a tight closure. It is also desirable that the valve seat be covered
by a ring or washer of india rubber or similar material.
The valve flap must be rigidly connected with its spindle by any suitable means,
for instance in one form or modification the said spindle has its central portion
made of square shape in cross section and is simply fitted into a corresponding
opening provided in the flap. The rod or spindle serving as the axis of rotation
for the flap, is pivotally arranged in the interior of the casing. This is prefer-
ably effected in such a manner, that the said rod or spindle has one of its extremities
pivoting in a bearing on one side of the case, whilst its other extremity traverses
the wall of the casing passing through a stuffing box or equivalent tightening
device.
Outside the valve casing the rod or spindle is provided with an operating lever,
the outer extremity of which may be weighted.
The valve is opened by simply lifting this lever. The water then passes out
under pressure as long as the lever is retained in its lifted position. When it is
desired to close the valve the lever is released, the flap then automatically moves
back into the closing position under the action of the water or fluid pressure,
supported by the weighted lever. Leaving the valve unintentionally open and
thereby wasting water is thus absolutely prevented.
As the casing forms a widening of the conduit or pipe opposite the place of

page_text: discharge, the further advantage is obtained that shocks are prevented and thus
a smooth and steady discharge is ensured.
The casing may be of rectangular, cylindrical or other shape, according to the
special object in view the tubular connecting pieces or nozzles may be omitted
or substituted by flanges.
The flap may be connected to the rod or spindle in any suitable manner but
the connection must be sufficiently reliable so as to efficiently withstand the
pressure exerted by the water upon the flap on opening the valve. It is also
necessary to secure the rod or spindle against any axial displacement for instance
by a collar or washer. Moreover an arrangement may be made by which the
angular displacement of the flap is limited. Instead of the weight a spring or
the like may be provided to assist the return movement of the lever. For effecting
the rotary motion of the rod or spindle a hand-wheel, crank or the like may be
arranged on the rod or spindle in lieu of the lever.
The position of the flap of the valve seat and of the lever are also dependent
upon the constructional arrangement of the valve in each special case. According
to one arrangement the delivery valve is arranged horizontally. According to
another arrangement the valve is inserted into a vertical conduit or pipe. This
arrangement is for example necessary, for closet flushing devices. The lever in
each case is preferably so arranged as to facilitate and assist the closing of the
flap by its own weight.
The casing is preferably formed by two parts in order to facilitate the mounting
of parts or mechanismis, located therein. The division line or plane may lie at
any suitable part of the casing.
In another form of the improved delivery valve the valve clack opens auto-
matically when the pressure in the pipe ceases. This is of importance, as owing to
this arrangement, on closing the main cock of the water supply system of a house
for example, the pipes can be emptied without it being necessary to open the
delivery cocks. This automatic opening is obtained by arranging the operating
lever having a balance weight at a particular angle with respect to the clack,
such angle being determined in the following manner. When the operating
lever hangs freely down in a vertical direction the clack is slightly separated
from the pipe opening or valve seat in such a manner that air enters freely from
without. As soon as water under pressure enters the pipe, the clack automatically
closes it again opens immediately the pressure in the pipe ceases.
Dated this 23rd day of August 1897
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Fluid Pressure Valves.
I, HERMANN JACOB, of Langgasse, 18, Danzig, in the Empire of Germany,
Manufacturer, 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:-
This invention relates to a delivery valve for use in pipes containing fluids
under pressure, and more particularly with water pipes, such valve being adapted
to replace the ordinary delivery cock.
My improved delivery valve possesses the advantage that it closes automatically
after use, under the action of the fluid under pressure, thereby preventing the
possibility of any waste of water occurring owing to the valve being inadvertently

page_text: left open.
In addition to this, the flow of the fluid is rendered quiet and steady.
The valve may be so constructed as to open automatically should any diminution
of pressure occur.
In the accompanying drawings:
Figure 1 represents a vertical section through a valve constructed according to
the present invention.
Figure 2 is a horizontal section upon the line -y of Figure 1.
Figure 3 shews the arrangement of the delivery valve in a pipe; for example
a pipe for flushing water-closets, and
Figures 4 and 5 illustrate a further constructional form of valve.
In carrying the invention into practice the valve casing a, is provided with two
tubular connecting pieces or nozzles a¹ and a² by one of which the same is con-
nected to, or inserted into the conduit or pipe. The connection or insertion may
be effected in any appropriate manner; these tubular connecting pieces or nozzles a¹
and therefore must be constructed to suit the conditions and the material em-
ployed in the piping.
In the interior of the casing a flaps is pivotally arranged on a spindle or
axle u, the said flap is so hung or arranged as to be forced against the out-flow
opening or valve seat o by the pressure of the fluid traversing the valve in direction
of the arrow 1. The flap or plate s may be provided with a disc or washer q
of india rubber or similar inaterial, so as to ensure a tight closure. It is preferable
that the valve seat be covered by a ring or washer p of indiarubber or similar
material.
The valve flaps must be rigidly connected with its spindle by any suitable
means for instance in one form or modification shown in Figures 1 and 2 the
said spindle has its central portion made of square shape in cross section and is
simply fitted into a corresponding opening provided in the flap. The rod or
spindle serving as the axis of rotation for the flap, is pivotally arranged in
the interior of the casing. This is preferably effected in such a manner, that the
said rod or spindle has one of its extremities formed in the shape of a pivot
rotatably arranged in a bearing n, whilst its other extremity traverses the wall
of the casing a passing through a stuffing box m or equivalent tightening device.
Outside the valve casing the rod or spindle u is provided with an operating
lever r, the outer extremity of which may be weighted by a weight wc.
The valve is opened by simply lifting this lever in the direction of the arrow 2,
Figure 1. The water then passes out under pressure in direction of the arrow as
long as the lever is retained in its lifted position. When it is desired to close
the valve the lever is released, the flaps then automatically moves back into the
closing position, under the action of the water or fluid pressure, supported by
the weighted lever provided with counter weight w. Leaving the valve
unintentionally open and thereby wasting water is thus absolutely prevented.
As the casing a forms a widening of the conduit or pipe opposite the point
of discharge, therefrom, on using a valve of this kind the further advantage is
obtained that shocks are prevented and thus a smooth and steady discharge is
ensured.
The casing may be of rectangular, cylindrical or other shape, according to
the special objects in view. The tubular connecting pieces or nozzles a¹ and a²
may be omitted or substituted by flanges.
The flaps may be connected to the rod or spindle u in any suitable manner but
the connection must be sufficiently reliable so as to efficiently withstand the
pressure exerted by the water upon the flap on opening the valve. It is also
necessary to secure the rod or spindle against any axial displacement for instance
by a collar or washer ul. Moreover an arrangement may be made by which the
angular displacement of the flaps is limited. Instead of the weight to a spring or
the like may be provided to assist the return movement of the lever v. For
effecting the rotary motion of the rod or spindle u a hand wheel, crank or the
like may be arranged on the rod or spindle u, in lieu of the lever v.
The position

page_text: of the flap, s, of the valve seat and of the lever are also dependent upon the con-
structional arrangement of the valve in each special case. According to Figures 1
and 2 the delivery valve is arranged horizontally. The connection of the curved
discharge nozzle d is indicated in Figure 1 in dotted lines. According to Figure 3
the valve is inserted in a vertical conduit or pipe. This arrangement is, for
example necessary for closet flushing devices. The lever v in each case is pre-
ferably so arranged as to facilitate and assist the closing of the flap by its own
weight.
The casing a is preferably formed by two parts in order to facilitate the mounting
of parts or mechanisms located therein. The division line or plane may lie at any
suitable part of the casing.
In another form of the improved delivery valve shewn in Figures 4 and 5, in
which the valve casing is shown cylindrical in cross section, the valve clack opens
automatically when the pressure in the pipe ceases. This is of importance, as,
owing to this arrangement, on closing the main cock of the water supply system
of a house, for example, the pipes can be emptied without it being necessary to
open the delivery cocks. This automatic opening is obtained by arranging the
operating lever v having a balance weight w at a particular angle with respect
to the clack s, such angle being determined in the following manner.
When the
operating lever hangs freely down in the position indicated in Figure 3, the
clack s is slightly separated from the pipe opening o or valve seat in such a manner
that air enters freely from without. As soon as water under pressure enters the
pipe, the clack s automatically closes; it again opens immediately the pressure
in the pipe ceases.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:
1. A delivery valve for pipes containing fluid under pressure, in which are
arranged, in the casing (a) a pivotally mounted valve-clack (s), and outside the
casing fixed upon the clack pivot (u) a lever (v) in such a manner that the valve
clack is opened by turning back the lever (v) and closed automatically by means of
the pressure of the water upon the valve clack, the casing serving at the same
time to diminish shocks in the pipe.
2. A constructional form of the delivery valve described in Claim 1 in which
the weighted lever (v) is so arranged relatively to the valve clack (s) (Figure 4)
that, upon the pressure diminishing in the pipe, both will hang in such a position
that the valve clack is slightly open, for the purpose of facilitating the emptying
of the pipe.
LY
HASELTINE LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.