Improvements in or relating to Cocks or Valves.
Year: 1899

page_text: Date of Application, 26th Oct., 1899
Complete Specification Left. 13th June. 1900-Accepted, 14th July, 1900
Improvements in or relating to Cocks or Valves.
I, SIEGMUND KAPRALIK, of 13, Französischestrasse, Berlin, in the Empire of
Germany, Director, do hereby declare the nature of this invention to be as
follows:-
The present invention relates to a cock or tap with a conical valve and is
characterised by the discharge passage being closed not only by the cone of the
valve but also by the valve spindle.
A water-cock according to this invention will now be described.
The rear portion of the body of the cock is provided with an enlargement or
chamber, an intermediate part or continuation being adapted to connect with
the supply pipe. The valve spindle fits a boring in the body of the cock, and
its end, projecting into the aforesaid chamber is provided with a preferably
conical valve adapted to seat against a corresponding portion of the body. The
valve spindle is provided, say centrally, with an annular groove. A passage like
a bye pass starting from the chamber passes through the wall of the body and
communicates with the passage in which the spindle is inserted and in line with
the passage provided for the outlet of the fluid. When the valve is moved off
its seat, the annular groove comes in line with and communicates with these two
branch passages or conduits and the liquid can then flow out through the dis-
charge pipe. The end of the spindle projecting above or in front of the body
of the cock, is provided with a knob or handle which may be adjustable.
By means of such a cock the liquid is not only shut off by the valve cone but
also by the valve spindle acting as a slide. When it is required to open the valve
the knob or handle is simply pressed down, whereupon the valve cone opens
communication between the supply pipe and the "bye pass" passage, while the
annular groove at the same time effects a communication between that passage
and the discharge conduit. On releasing the knob the valve will be automatically
closed by the pressure of the fluid, or of course a spring could be used.
This cock also offers the great advantage that air can freely enter and leave
the pipes, whenever the water is cut off or withdrawn, or readmitted respectively,
which is of great importance when pipes are to be emptied as in the case of
very cold weather. The knob or handle may be provided with a spring device
or catch for keeping the cock open until released.
Dated this 26th day of October 1899.
BOULT, WADE & KILBURN,
Agents for the Applicant.

page_text: Improvements in or relating to Cocks or Valves.
I, SIEGMUND KAPRALIK, of 13, Französischestrasse, Berlin, in the Empire vi
Germany, Director, 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:-
The present invention relates to a cock or tap with a conical valve and is
characterised by the discharge passage being closed not only by the cone of the
valve but also by the valve spindle.
The accompanying drawing representing a water-cock in longitudinal section
according to this invention will now be described.
The rear portion of the body b of the cock is provided with an enlargement or
chamber h, an intermediate part or continuation being adapted to connect with
the supply pipe. The valve spindle a fits a boring in the body of the cock and
its end, projecting into the aforesaid chamber is provided with a preferably
conical-valve g adapted to seat against a corresponding portion of the body. The
valve spindle a is provided say centrally with an annular groove d.
A passage f
like a bye-pass starting from the chamber h passes through the wall of the body b
and communicates with the passage in which the spindle is inserted, and in
line with the passage e provided for the outlet of the fluid. When the valve is
moved off its seat the annular groove d comes in line with and communicates
with these two branch passages or conduits and the liquid can then flow out
through the discharge pipe e. The end of the spindle a projecting above or in
front of the body of the cock, is provided with a knob or handle which may be
adjustable.
"
By means of such a cock the liquid is not only shut off by the valve cone g.
but also by the valve spindle a acting as a slide, when the valve and the valve
spindle occupy the position represented in the drawing. When it is required to
open the valve the knob or handle is simply pressed down, whereupon the
valve cone opens communication between the supply pipe and the "bye-pass'
passage f, while the annular groove d at the same time effects a communication
between that passage f and the discharge conduit e. On releasing the knob c
the valve g will be automatically closed by the pressure of the fluid, or of course
a spring could be used.
This cock also offers the great advantage that air can freely enter and leave
the pipes, whenever the supply of water is cut off or withdrawn,, or readmitted
respectively, which is of great importance when pipes are to be emptied as
in the case of very cold weather. The knob or handle c may be provided with a
spring device or catch for keeping the cock open until released.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. A cock with a valve and valve spindle, characterised by the spindle being
arranged to act, simultaneously with the valve as a piston slide, in order when
the cock is closed, to cut off the fluid not only by means of the valve but also by
the valve spindle, thereby securing a double closing effect.
2. A double closing cock comprising a body with a valve seat, a valve, a valve
spindle with a groove therein, passages in the walls of the cock communicating

page_text: with the valve chamber and with the cock outlet and with the passage in which
the spindle is located, substantially as described.
3. The complete valve substantially as described or illustrated in the accom-
panying drawings.
Dated this 18th day of June 1900.
BOULT, WADE & KILBURN,
Agents for the Applicant.