IMPROVE- MENTS IN TAPS, Cocks, OR VALVES FOR ADJUSTING OR REGULATING THE FLOW OF LIQUIDS AND GASEOUS FLUIDS.”
Year: 1874

page_text: LETTERS PATENT to Edward Pearson, of No. 745, Old Kent Road,
in the County of Surrey, Carpenter, for the Invention of "IMPROVE-
MENTS IN TAPS, Cocks, OR VALVES FOR ADJUSTING OR REGULATING THE FLOW
OF LIQUIDS AND GASEOUS FLUIDS.”
PROVISIONAL SPECIFICATION left by the said Edward Pearson at the
Office of the Commissioners of Patents, with his Petition, on the
4th April 1874.
I, EDWARD PEARSON, of No. 745, Old Kent Road, in the County of
Surrey, Carpenter, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN TAPS, Cocks, OR VALVES FOR ADJUSTING OR REGULATING
THE FLOW OF LIQUIDS AND GASEOUS FLUIDS," to be as follows:-
This Invention relates to a novel form of tap, cock, valve, or
obturator for adjusting or regulating the flow of liquids and gaseous
fluids.

page_text: This form of tap is applicable as a ball-cock for ordinary cisterns, as a
bab-cock in sinks, to other household appliances, and to the innumerable
purposes in fact for which the common forms of taps or cocks or valves
can be used, such as for steam, gas, air, or other liquid or gaseous fluid.
The apparatus in its external appearance is somewhat similar to an
ordinary tap. The tubular portion of the body of the tap, the flow of
the liquid through which is to be obturated or intermittently opened
and closed, consists as is usual with common taps of the frustrum of a
cone cast at right angles to the pipe or tube through or past which the
liquid is led. This cone is also hollowed out in the usual tapered form.
It may also be left entirely open at the top, while at the bottom a small
hole for the passage of a slender stem is bored out or otherwise formed;
the top may be closed by a cap or cover screwed on. The tap plug is
also a solid frustrum of a cone, but instead as in ordinary taps being
cut out with a central or with side passages it is made entirely solid. Its
smallest end is also fitted with a slender stem, and sufficient space is left
between the top of the said plug and the bottom of the cap or cover for
an adjustment vertically. Instead therefore, as is usual with ordinary
cocks or taps, causing the plug to vibrate for a portion of a circle the
plug is lifted up vertically by its stem below, thereby leaving sufficient
space for the water to pass from onc portion of the pipe through the
body of the tap to the other opposite portion of the pipe.
It is obvious that a guide for this novel form of tap may also be
formed by lengthening or continuing the upper cylindrical portion of
the plug, and shaping appropriately thereto the hollowed out body of the
tap. The solid plug is then raised or lowered by means of a stem fitted
to its upper end. Other similar modifications may be made without
departing from the essence of my Invention.

page_text: may be made by an ordinary stuffing box; the top may be covered by
a cap screwed on. The tap plug may also be a solid frustrum of a cone,
but instead, as in ordinary taps, being cut out with a central or with
side passages it is made entirely solid. Its smallest end is also fitted
with a slender stem, and sufficient space is left between the top of the
said plug and the bottom of the cap or cover for an adjustment ver-
tically; or as the plug may be shaped somewhat like a so called mushroom
valve. Instead therefore, as is usual with ordinary cocks or taps causing
the plugs to vibrate for a portion of a circle, the same is lifted up ver-
tically, preferably by its stem below, thereby leaving sufficient space for
the water to pass from one portion of the pipe through the body of the
tap to the other opposite portion of the pipe.
It is obvious that a guide for this novel form of tap may also be
formed by carrying up or by enlarging the upper portion of the plug
and shaping appropriately thereto the hollowed out body of the tap..
The solid plug or valve is then raised or lowered by means of a stem or
rod fitted to its upper end; and it may be lifted by a screw or other
means. In such a case the stem may be made to pass through an
ordinary stuffing box. Other similar modifications may be made without
departing from the essence of the Invention.
.
This form of tap is applicable as a ball-cock for ordinary cisterns, as a
so called bib-cock in sinks, to other household appliances, and to the
innumerable purposes in fact to which the common forms of taps or
cocks or valves can be used. I find that this form of tap is especially
advantageous when used in combination with a common float.
'
I will now proceed to make my Invention more clearly understood by
means of Drawings. On the Sheet of the same Figure 1 is a longitudinal
section; Figure 2 a transverse section; and Figure 3 a plan of the form
of tap I prefer.
A is the tubular portion of the body of the tap; B is the valve or
plug; bits stem, which may be guided by any ordinary form of stuffing
box at E; C is the cover of the body of the tap; D is an arm projecting
from and preferably cast on the body of the tap, and fitted with a joint
at d for the reception of the lever, of a float, or other means of raising

page_text: Having now fully defined and illustrated my Invention, I declare that
what I claim is the form of tap, as described and shewn on Drawing, or
any colorable imitation thereof.
In witness whereof, I, the said Edward Pearson, have hereunto set
my hand and seal, this Third day of October, in the year of
our Lord One thousand eight hundred and seventy-four.
EDWARD PEARSON. (L.S.)