IMPROVEMENTS IN COCKS, VALVES, AND TAPS
Year: 1878

page_text: LETTERS PATENT to Robert Greenwood Warner, of Jewin Crescent, and James
John Brown, of 105, Bunhill Row, both in the City of London, for the
Invention of "IMPROVEMENTS IN COCKS, VALVES, AND TAPS."
Sealed the 3rd June 1879, and dated the 24th December 1878.
PROVISIONAL SPECIFICATION left by the said Robert Greenwood Warner
and James John Brown at the Office of the Commissioners of Patents on the
24th December 1878.
ROBERT GREENWOOD WARNER, of Jewin Crescent, and JAMES JOHN BROWN, of
105, Bunhill Row, both in the City of London. "IMPROVEMENTS IN COCKS, VALVES,
AND TAPS."
This Invention has for its object improvements in cocks, valves, and taps.
The shell of a cock or tap we cast with a partition separating the supply side
from the outlet side. We form a passage transversely through the shell and through
the partition to receive a valve spindle and valve. We employ a coned disc-valve,
composed of metal, leather, rubber, ebonite, vulcanite, or vulcanised fibre. The hole
through the diaphragm is coned and adapted to receive the valve. The valve works
on the under or supply side of the partition, and from this side the valve spindle
with the valve at its end is inserted."
The valve spindle has a screw thread cut upon it at its upper end, and a corre-
sponding thread is cut within the transverse passage in the shell. Thus the spindle
of the valve screws through that portion of the passage in the shell which is on the
upper or outlet side of the partition, and so the valve which is beneath the partition
is brought to or removed from its seat. After that the valve has been inserted, the
lower end of the transverse passage, or that on the supply side of the partition, is
closed by a screw plug. To prevent escape of the water or fluid around the spindle

page_text: when the valve is open, we place a ring of vulcanised fibre upon the spindle, between
the screw thread and the end of the transverse passage, which is made of a smaller
diameter, so as to provide a seat for the ring. As an additional security, we also
mount a cone of vulcanized fibre upon the spindle of the valve outside of the shell
of the cock or tap, and as the valve is opened, this cone comes down into a seating
prepared for it in the exterior of the shell around the spindle, and so effectually
prevents leakage. Or in place of these arrangements, a stuffing box may be provided
to close the passage around the spindle of the valve.
These cocks, valves, or taps are applicable to steam whistles and water gauges,
and may form part of them and other apparatus in which the opening and closing
of fluid passages is required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Greenwood Warner and James John Brown in the Great Seal
Patent Office on the 23rd June 1879.
ROBERT GREENWOOD WARNER, of Jewin Crescent, and JAMES JOHN BROWN, of
105, Bunhill Row, both in the City of London. "IMPROVEMENTS IN COCKS, VALVES,
AND TAPS."
This Invention has for its object improvements in cocks, valves, and taps. We
construct cocks, valves, and taps with a cone or disc closing against a diaphragm or
partition within the body or shell, so as to cover an aperture therein, by which,
when the cone or disc valve is removed, the fluid is free to pass. The cone or disc
valve is carried at the end of a spindle, which passes through the aperture or water
way in the diaphragm or partition; there is also a screw thread formed upon the
spindle, and the screwed portion of the spindle is somewhat larger in diameter than
the other parts. A boss is formed upon the shell or body of the cock, tap, or valve;
it has a hole through it, which is traversed by the spindle, and it is tapped with a
screw thread corresponding to that upon the spindle, so that by the spindle
working in the boss as a screw in a nut the cone or disc valve is drawn to its
seat.
On the side of the shell or body opposite to the boss above mentioned there is a
hole sufficiently large to admit the cone or disc valve, and when this has been
inserted the hole is closed by a plug screwed into it. The part of the spindle beyond
the screw thread may pass through a stuffing box formed in the boss, or it may
simply have a conical collar upon it, which when the spindle is screwed in in such
manner as to remove the cone or disc valve from its seat, and to open the water
way, comes down upon the top of the boss forming a fluid tight joint, preventing
any escape around the spindle, or in some cases this precaution may be considered
unnecessary. The spindle may terminate at its upper end in a cross piece or handle,
by which it can be conveniently turned.
In order that our said Invention may be most fully understood and readily
carried into effect, we will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a section of a cock, valve, or tap constructed in accordance with our
Invention. a, a, is the shell or body, having in it a diaphragm or partition a²,
separating the supply from the outlet side; it has also on one side the boss a², with
a hole or passage through it for the spindle, and on the other side a hole for the
admission of the cone or disc valve. bis the spindle passing through the boss a³,
and it has a screw thread upon it at b', engaging with a corresponding thread
within the boss. c is the valve in this arrangement, a cone valve formed of a piece
with the spindle b, and adapted to a corresponding coned seat in the partition or
diaphragm a¹.
à is a screw plug which closes the hole by which the valve with its spindle b is
insorted. The upper part of the spindle passes through a stuffing box a* on the
top of the boss a², and it has a cross bar or handle 63 fixed on to its upper end.
Figure 2 is a section of another cock, valve, or tap, constructed in accordance
with our Invention, and differing from that shown in Figure 1 principally in that
a disc valve c, faced with vulcanized fibre or leather, or like material, and held by
a screw upon the end of the spindle, is substituted for the cone valve indicated in
the first mentioned Figure, and also in that in place of the stuffing box, to form a
tight joint around the spindle b, the said spindle has a metal cone 6s fixed upon it,
which when the spindle is screwed down, descends on to a seat on the top of the
boss a², and makes a fluid tight joint around the spindle b. This cone 6s in many
cases is a sufficient precaution against the escape of the liquid around the spindle,
and this is not in every case needed.

page_text: Having thus described the nature of our said Invention and the manner of
performing the same, we would have it understood that we claim,-
First. The combination of parts constituting a cock, tap, or valve, consisting of a
shell or body, and a spindle and valve, the shell or body having on one side a per-
forated boss, with a screw thread within it, and on the other side an aperture for
the insertion of a cone or disc valve; also, between these, a diaphragm or partition,
with an opening or water way through it, the spindle passing through this opening
or water way, and through the boss of the shell or body, having a screw thread
corresponding to and working with the screw within the boss, and carrying a cone
or disc valve at its inner end.
Second. The construction of cocks, valves, and taps, substantially as described and
represented in the annexed Drawings.
In witness whereof, I, the said James John Brown, have hereunto set my hand
and seal, this Nineteenth day of June, in the year of our Lord One thousand
eight hundred and seventy nine.
JAS. J. BROWN. (L.S.)