Year: 1886

page_text: I, JAMES KELLY, of Peoples Park Blackrock in the County of Dublin, Water
Inspector to the Commissioners of Blackrock, do hereby declare the nature of this
invention to be as follows :——
My invention relates to the construction of a water tap valve of a simple and
durable character, so arranged that it becomes automatically closed without shock
when it is left free to be acted on by the water pressure, and that if its handle should
be moved beyond a certain distance the outflow becomes closed. For this purpose I
make within the body of the tap a cylindrical part fitted with a piston the rod of
which projects through a stuffing box and terminates in a button or handle. Above
and below the piston there is a valve seating, which may be a circular edge of metal
against which the face of the piston provided with a washer of leather or other some-
what yielding material can be pressed. From the cylinder above the lower seating.
there is a by-pass channel to the cylinder below the upper seating. The pressure in
the service pipe acting against the piston presses it home to the upper seating thus
closing the outlet; on pressing on the button or handle, the piston is pushed away
from the upper seating, allowing water to pass to a lateral outlet. Should the piston
be pushed or held too far down, it is made to bear against the lower seating and thus
to close the service pipe against escape. The soft washer on each side of the piston is
held on by a conical nut and this, as the piston approaches the seating, gradually closes
the passage so that there is no shock when the valve closes.
Dated this 28th day of Tom 100%
ABEL & IMRAY,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improvement in Water Tap Valves. -
I, JAMES KELLY of Peoples Park, Blackrock in the County of Dublin, Water
Inspector to the Commissioners of Blackrock 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 :—
My invention relates to the construction of a water tap valve of a
simple and
durable character, so arranged that it becomes automatically closed without shock
when it is left free to be acted on by the water pressure, and that if its handle be
moved beyond a certain distance the outflow becomes closed. For this purpose I
construct the tap as shown by the accompanying drawing which is a vertical section.
Within the body of the tap a cylindrical part A is fitted with a piston B the rod of
which projects through a stuffing box Cand terminates in a button or handle D.
Above and below the piston there are valve seatings E and F presenting circular
edges of metal against which the faces of the piston provided with washers of leather
or other somewhat yielding material can be pressed. From the cylindrical part A
above the lower seating F there is an annular by pass channel G opening to the
cylinder below the upper seating E. The pressure in the service pipe H acting against
the piston B presses it home to the upper seating E thus closing the outlet; on press-
ing on the button or handle D the piston is pushed away from the upper seating E,
allowing water to pass to a lateral outlet K. Should the piston be pushed or held too
far down, it is made to bear against the lower seating F and thus to close the service
pipe against escape. The soft washer on each side of the piston is held on by a conical
nut L. and this as the piston approaches the seating, gradually closes the passage so
that there is no shock when the valve closes.
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 :
The construction of water tap valve wherein a piston is arranged to seat as a valve
when moved in either direction, substantially as and for the purpose herein set
forth.
בד.
1
2011
1
1 1000
ABEL & IMRAY,
Agents for the Applicant.