IMPROVEMENTS IN VALVES FOR STEAM, WATER, SPIRITS, AND OTHER LIQUIDS
Year: 1879

page_text: LETTERS PATENT to Samuel Whitaker, of Heywood, in the County of Lancaster,
for the Invention of "IMPROVEMENTS IN VALVES FOR STEAM, WATER, SPIRITS,
AND OTHER LIQUIDS."
Sealed the 7th October 1879, in pursuance of an Order of the Lord Chancellor, and
Jad the orth March 1870
PROVISIONAL SPECIFICATION left by the said Samuel Whitaker at the
Office of the Commissioners of Patents on the 26th March 1879.
SAMUEL WHITAKER, of Heywood, in the County of Lancaster.
IN VALVES FOR STEAM, WATER, SPIRITS, AND OTHER LIQUIDS."
"IMPROVEMENTS
These improvements have for their object the construction of a valve which shall
be capable of withstanding any required pressure, and be suitable for steam, hot or
cold water, spirits, or other liquids, and consists in forming the valve of brass or
other suitable metal, and in introducing a soft metal facing in such valve, which
is arranged to close against a V shaped annular projection formed around the orifice
in the valve body, this valve being loose from the screwed spindle and prevented
turning by having guiding wings and a square extension passing into a corre-
sponding hole formed in the lower part of the valve body. In the case of these
valves being applied in positions where the pressure is insufficient to raise the
valve I apply a left handed screw to the valve screwing into a female screw formed
in the ordinary right handed screwed spindle. Instead of the soft metal facing
being formed in the valve it may be arranged in the valve body, and the annular
projection be formed in the valve itself.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Whitaker in the Great Seal Patent Office on the 8th October
1879.
SAMUEL WHITAKER, of Heywood, in the County of Lancaster.
IN VALVES FOR STEAM, WATER, SPIRITS, AND OTHER LIQUIDS."
"IMPROVEMENTS
These improvements have for their object the construction of a valve which shall
be capable of withstanding any required pressure and be suitable for steam, hot or
cold water, spirits, or other liquids.
In the accompanying Drawing, Fig. 1 represents an exterior view, and Fig. 2 a
sectional view of a valve constructed in accordance with my Invention; and Fig. 3
is a side view, and Fig. 4 a plan of the underside of the valve shewn detached.
In all the views a is the valve, formed of brass or other suitable metal, in the face
of which a soft metal facing b is introduced; this soft metal facing is arranged to
close against a V shaped annular projection c formed around the orifice d in the
valve body e.
I prefer to have this valve loose from the screwed spindle f, as
illustrated, and I prevent such valve from turning by providing it with guiding
wings g and with a square extension h passing into a corresponding hole formed in
the screwed cap i.
In Fig. 5 I illustrate a part of the same valve-body with a modified form of my
improved valve applied thereto. In this case the valve a has an annular recess o
formed in it to receive the annular projection p, the former being of a sharper angle
than the latter, in order to bear or be ground in only a little on each side of the
mouth or entrance of the recess, as illustrated.
In the case of these valves being applied in positions where the pressure is
insufficient to raise the valve I apply a left handed screw to the valve, screwing
into a female screw formed in the ordinary right handed screwed spindle, or I
connect the valve to the spindle by means of the ordinary swivel joint.
Instead of the soft metal or recessed facing being formed in the valve it may
be arranged in the valve body, and the annular projection be formed on the valve
itself.
It will be readily apparent that this description of valve facing is applicable to
all descriptions of valves.
Having thus particularly described and ascertained the nature of this my said
Invention, together with the best methods with which I am acquainted for carrying
the same into practical effect, I wish it to be distinctly understood that I do not
confine myself to the precise details, relative proportions, or dimensions of the
various parts of the valve hereinbefore described and illustrated on the accom-
panying Drawing, as the same may be considerably varied without departing from
the Invention, and that-
I claim the improved construction of valve facing, substantially as and for the
purposes hereinbefore described and illustrated on the accompanying Drawing.
In witness whereof, I, the said Samuel Whitaker, have hereunto set my hand
and seal, this 7th day of October, in the year of our Lord 1879.