IMPROVEMENTS IN APPARATUS FOR REGULATING AND CONTROLLING THE FLOW OF LIQUIDS INTO TANKS OR OTHER VESSELS
Year: 1880

page_text: LETTERS PATENT to David Young, Mechanical Engineer, of Highbury, in the
County of Middlesex, for an Invention of "IMPROVEMENTS IN APPARATUS
FOR REGULATING AND CONTROLLING THE FLOW OF LIQUIDS INTO TANKS OR
OTHER VESSELS."
PROVISIONAL SPECIFICATION left by the said David Young at the Office
of the Commissioners of Patents on the 18th June 1880.
DAVID YOUNG, Mechanical Engineer, of Highbury, in the County of Middlesex.
"IMPROVEMENTS IN APPARATUS FOR REGULATING AND CONTROLLING THE FLOW
OF LIQUIDS INTO TANKS OR OTHER VESSELS."
The object of my Invention is to construct ball valves for regulating and
controlling the flow of liquids into tanks or other vessels, in such a manner that
they shall work efficiently with either a bigh or a low pressure of water or other
liquid.
My Invention is applicable to many of the known forms of ball valves, and
consists in connecting a suitably shaped wedge to the short arın of the ball lover
by means of a single and double eye, or other suitablo joint, so that when the ball
falls by its own weight the valve is opened by the wedge, and when the water or
other liquid rises in the tank or vessel and litts the ball the wedge is withdrawn,
and the valve is closed by the pressure of the liquid.
In valves opening with the pressure of the liquid the apparatus is so arranged
that the falling of the ball withdraws the wedge, and the valve is opened by the
pressure of the liquid, and when the water or other liquid rises in the tank or vessel
and lifts the ball the valve is again closed by the wedge.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said David Young in the Great Seal Patent Office on the 18th December
1880.
DAVID YOUNG, Mechanical Engineor, of Highbury, in the County of Middlesex.
"IMPROVEMENTS IN APPARATUS FOR REGULATING AND CONTROLLING THE FLOW
OF LIQUIDS INTO TANKS OR OTHER VESSELS."
The object of my Invention is to construct ball valves for regulating and
controlling the flow of liquids into tanks or other vessels in such a manner that
they shall work efficiently with either a high or a low pressure of water or other
liquid.
My Invention is applicable to many of the known forms of ball valves, and consists
in connecting a suitably shaped wedgo to the short arm of the ball lever by means
of a single and double eye, or other suitable joint, so that when the ball falls by its
own weight the valve is opened by the wedge, and when the water or other liquid
rises in the tank or vessel and lifts the ball the wedge is withdrawn, and the valvo
is closed by the pressure of the liquid.
In valves opening with the pressure of the liquid the apparatus is so arranged
that the falling of the ball withdraws the wedge, and the valve is opened by the
pressure of the liquid, and when the water or other liquid rises in the tank or
vessel and lifts the ball the valve is again closed by the wedge.
My Invention may be applied to various forms of ball valves or such like
apparatus for regulating and controlling the flow of liquids into tanks or other
vessels, and I will now proceed to describe by the aid of the accompanying
Drawings two methods or modes in which my said Invention may be performed or
carried into practical effect.
The form of valve which I have found most advantageous is shewn upon Sheet 1,
and opens with the pressure of the liquid, as before described. Figure 1 is a
longitudinal section, Figure 2 a plan, and Figure 3 an end view of this valve,
shewing it as it would appear when the ball has fallen and withdrawn the wedge,
and the valve has been opened by the pressure of the liquid in the pipe or vessel to
which the valve is attached.
The piston or plunger a may be fitted with a friction roller, as shewn, or it may
be made without a roller, the end next the wedge being slightly rounded. If fitted
with a roller a pin b should be inserted, which will fit into a slot in the valve box,
so as to prevent the piston or plunger from turning round. For high pressures the
piston or plunger a should or may be packed in any well known and suitable
manner to prevent the water or other liquid from being forced out around it when
the valve is open.
Another form of valve is shewn upon Sheet 2, which opens against the pressure.
Figure 1 is a longitudinal section shewing the method of applying the wedge;
Figure 2 is an elevation, and Figure 3 a plan of the underside of the valve. The
lower part of the body of the valve is cut away at opposite sides, as shewn at a, so
as to allow the water to escape between the body of the valve and the valve box
when the valve is lifted off its seating by the wedge. The valve may be fitted
with a friction roller, as shewn in the Drawing, or not.
Having described the naturo and object of my said Invention, and in what
manner the same may be performed and carried into practical effect, I wish it to be
understood that what I claim is,―
Firstly. The uso of a wedge in combination with the lever of a ball valve,
substantially as hereinbeforo described and shewn in the Drawings hereunto
annexed.

page_text: Secondly. The arrangement and construction of ball valves, substantially as
herein before described and shewn in the Drawings hereunto annexed.
In witness whereof, I, the said David Young, have hereunto set my hand
and seal, this Eighteenth day of December, in the year of our Lord One
thousand eight hundred and eighty.
CARTA
DAVID YOUNG. (LX)