Improvements in Water Cocks or Valves.
Year: 1894

page_text: Date of Application, 19th Nov., 1894
Complete Specification Left, 19th Aug., 1895-Accepted, 2nd Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Water Cocks or Valves.
We, EDMUND PARKER BROOK, of Hanson Lane Reservoir, Halifax, in the
County of York, Water Engineer, and BENJAMIN CORFIELD, of 29, Violet
Street, Halifax, aforesaid, Water Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the construction and arrangement of an improved water
cock or valve, to be used as a stop-cock, relief-cock, and also as a reducing pressure
cock, all combined in one and the same shell.
According to our invention we make use of an ordinary form of thumb screw
working in an ordinary stuffing box. In the jacket of the valve we employ two
washers between which is a column of india rubber or other suitable yielding
material or spiral spring. In connection with the bottom washer is a piston or
spindle, the bottom of which rests upon the valve so that on the thumb screw being
turned in one direction the piston closes the valve and on the reverse motion of
the thumb screw the valve is opened but when the cock is employed for reducing
the pressure of water passing through the said valve, the tension of the thumb
screw is made to bear upon the upper washer and compress the rubber but the
water coming through the valve will overcome the pressure of the rubber and so
make its escape at a considerably reduced pressure this being regulated by the
tension of the thumb screw upon the said rubber. This india rubber cushion
permits the valve to be used as a relief cock and will be advantageous when a
sudden increased pressure is put upon the water which often happens in the case
of hoists and other apparatus where the action is sudden.
Dated this 17th day of November 1894.
TASKER & CROSSLEY,
Halifax, Patent Agents.
We, EDMUND PARKER BROOK, of Hanson Lane Reservoir, Halifax, in the
County of York, Water Engineer, and BENJAMIN CORFIELD, of 29, Violet
Street. Halifax, aforesaid, Water Engineer, 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 the construction and arrangement of an improved water
cock or valve, to be used as a stop-cock, relief-cock, reducing pressure cock, and
also as a safety valve for fire back boilers, all combined in one and the same shell.
According to our invention we make use of an ordinary form of thumb screw
working in an ordinary stuffing box. In the jacket of the valve we employ two
washers between which is a column of india rubber or other suitable yielding
material or spiral spring.
Such being the nature and object of our invention we will now proceed to
Price sa.1

page_text: describe the same more fully, and for that purpose make reference to the accom-
panying sheet of drawings illustrative thereof, wherein :-
Fig. 1 is vertical section of our improved cock or valve shewing the interior
thereof.
A is the shell or casing of the said valve, B the inlet end, and C the outlet end
thereof. D is the valve spindle raised up and down by a thumbscrew or hand
wheel. We prefer the thumbscrew or hand wheel to be removable so that when
the valve has been once adjusted and the spindle secured by the lock nut E it
cannot be tampered with. F represents the valve of the cock and G the seating.
Between the upper part of the valve and the bottom of the spindle D we place
two washers H and I between which is a column of india rubber J or spiral spring
which may be used for the same purposes.
On the spindle being turned in one direction the valve is closed, whilst the
reverse action of the said spindle permits the valve to be opened, but when the
valve is employed for reducing the pressure of water passing through it, the tension
of the screw spindle D is made to bear upon the upper washer H compressing the
rubber. On the water coming through the valve it will overcome the pressure of
the rubber and thereby make its exit at a considerably reduced pressure, this
however is regulated by the pressure of the spindle upon the said rubber. This
india rubber cushion permits the valve to be used as a relief cock and will be
found advantageous when a suddenly increased pressure is put upon the water
which happens in the case of hoists and other apparatus where the action is
sudden.
The valve and also the seat of the valve are composed of ebonite or vulcanite to
prevent wear and tear by friction, and any acid which may be in the water will
have no effect upon the said ebonite or vulcanite. The said valve and seating will
considerably outlast the ordinary metal seatings.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In a water cock or tap, the combination therewith of washers H and I and
intermediate cushion J, all operated in the manner described and arranged as
shewn in the drawings.
Dated this 17th day of August 1895.
TASKER & CROSSLEY,
Halifax, Patent Agents.