Improvements in Valves and Cocks.
Year: 1897

page_text: Improvements in Valves and Cocks.
We, ALFRED JOHN RILEY, of 88, Great King Street, Manufacturer, and HENRY
HARTLEY, of Clarence Chambers, Corporation Street, Patent Broker, both in the City
of Birmingham, do hereby declare the nature of this invention to be as follows:-
This invention consists of improvements in valves and cocks for oil tanks,
for hot and cold water, and for other services, our object being to construct a simple
and effective tap that shall be kept watertight without the use of packing material
both when opened and closed and also at any intermediate position.
In constructing a cock in accordance with our invention we form the lower or
valve seat part preferably of a solid disc form from brass or other metal, having an
open top cylindrical part projecting above it. In the centre of the solid disc part of
the cock we form a hole, closed at its lower end and having its upper end suitably
shaped to receive the valve. From the inlet side of the body we drill or form a hole
or passage to meet the central aperture herein before described, whilst from the
opposite or outlet side we form a right angle passage to the interior of the
cylindrical part. The valve is of an ordinary conical or other type and has a piston
part formed with it to fit within the cylinder of the cock body and also a projecting
stem extending through the cylinder cap or cover hereinafter described.
After the valve has been placed in position the top of the cylinder is closed by a
disc of thin flexible metal either plain or corrugated, which is soldered or otherwise
fixed and sealed upon the end of the cylinder and also around the projecting stem of
the valve.
The space between the upper side of the piston and the underside of the flexible
metal disc is sufficient to permit of the necessary lift of the valve.
The valve is raised by means of a handle fitting upon the projecting stem herein-
before described and having its boss screwed to fit within the screwed aperture in the
upper part of a cap which itself is screwed over the exterior of the cylinder and forms
a strengthening or resistance piece for the flexible closing disc.
When the valve is screwed down the liquid on the inlet side of the cock cannot
pass beyond the valve into the cylindrical space but should there be any leakage past
the valve the escaping liquid cannot pass out around the valve stem as the flexible
metallic disc being screwed down tightly on to the piston will effectually arrest the
same.
When the valve is opened the liquid can flow through to the outlet side but as the
flexible disc is now pressed tightly against the underside of the screwed cap no
liquid can pass between the imposed surfaces.
We do not limit the application of our invention to cocks of any particular type or
pattern but adapt the same in the construction of cocks to meet varying services or
requirements.

page_text: We, ALFRED JOHN RILEY, of 88, Great King Street, Manufacturer, and HENRY
HARTLEY, of Clarence Chambers, Corporation Street, Patent Broker, both in the City
of Birmingham, 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 :-
This invention consists of improvements in valves and cocks for oil tanks, for hot
and cold water, and for other services, our object being to construct a simple and
effective tap that shall be kept watertight without the use of packing material both
when opened and closed and also at any intermediate position.
In the accompanying sheet of explanatory drawings to be hereinafter referred
to :-
Figure 1 is a front elevation, Figure 2 a plan, and Figure 3 a sectional elevation,
of a tap or cock constructed in accordance with our invention.
The valve is represented as closed in Figure 1 and open at Figure 3.
The same reference letters in the different views indicate the same parts.
In constructing a tap or cock in accordance with our invention we form the body
or valve seat part A from brass or other metal with a cylindrical aperture A¹ closed at
the inner but open at the outer end as shown at Figure 3. Through the metal
adjacent to the closed end of the cylinder A¹ we form the passages B and C
respectively serving as the inlet and the outlet of the said cylinder or cylindrical
space. The liquid is conveyed to the inlet passage B by the pipe or tube D and from
the outlet passage C by the pipe or tube E. The end of the inlet passage B adjacent
to the cylinder A¹ is suitably shaped to form a seating for the valve F which is of an
ordinary conical or other type and has a piston part F1 formed with it to fit
within the cylinder A¹ as shown at Figure 3 and also a projecting stem extending
through the cylinder cap or cover hereinafter described.
After the valve has been placed in position the top of the cylinder is closed by a
disc G of thin flexible steel or other metal either plain or corrugated, which is
soldered or otherwise fixed and sealed upon the end of the cylinder and also around
the projecting stem of the valve.
The space between the upper side of the piston and the underside of the flexible
inetal disc is sufficient to permit of the necessary lift of the valve.
The valve is controlled by means of a handle H fitting loosely upon the
projecting stem of the valve and having its boss H¹ screwed to fit within the
screwed aperture in the upper part of a cap J which itself is screwed over the exterior
of the cylinder and forms a strengthening or resistance piece for the flexible
closing disc or diaphragmn G. The valve stem is provided with a cap K at its outer
end.
On screwing down the boss H¹ its inner end presses on the central part of the
Hexible disc GF and so forces the valve F on to its seat. The liquid cannot then
flow from the tube D into the cylindrical space but should there be any leakage
past the valve and the piston the escaping liquid will be arrested by the disc
or cover G and so prevented from passing out around the valve stem or the
cap J.
When the valve is opened the liquid can flow through to the outlet side but
the flexible disc G will prevent leakage around the cap or the valve stem.
We do not limit the application of our invention to taps, cocks, or valves, of any
particular type or pattern but adapt the same in the construction of such appliances
to meet varying services or requirements.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. In valves, cocks, or taps, the use of a flexible disc or diaphragm substantially as
and for the purpose described and as illustrated.
2. The arrangement and combination of parts forming the improved cock or tap
substantially as described and as illustrated.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham.