Improved Valve Apparatus, applicable to Apparatus for Aerating Liquids and for other uses.
Year: 1890

page_text: Date of Application, 19th Dec., 1890
Complete Specification Left, 19th Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improved Valve Apparatus, applicable to Apparatus for Aerating
Liquids and for other uses.
I, MORTIMER EVANS, of Savile Club, Piccadilly, in the County of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improved valve apparatus which is especially applicable
to apparatus for charging water or other liquid with carbonic acid gas or for
analogous aerating purposes, though it may also be used for other purposes for
which it may be suitable.
As applied to the use above specified, the valve apparatus is used for closing and
controlling the ports or passages through which the liquid and gas respectively
obtain access to the aerating chamber, and for closing and controlling the ports or
passages through which the aerated liquid passes from the aerating chamber, and
may also be used for closing the passage from such chamber to the pressure gauge
in the event of the fracture of the gauge glass.
The valve apparatus is contained in a casting or castings which is or are screwed
into the dome or domes of the aerating chamber, such castings being formed with
conveniently arranged ports or passages respectively leading into the chamber the
compressed gas and the water from their respective supplies, and from the aerating
chamber to the outlet or outlets of the aerated liquid and to the said pressure
gauge which is used to indicate the pressure within the aerating chamber.
In accordance with the present improvements, the ends of such ports or passages
to be closed or controlled, say, for example, those leading from the compressed gas
and supply to the aerating chamber, are respectively closed by vulcanite, boxwood
or other suitable valves adapted to seat squarely against and to effectively close
such ends of such ports, such valves being flanged and mounted in an elastic
diaphragm which is retained all around its periphery between a seating projecting
from the casting and a screwed cap engaging therewith, the valves being also
recessed axially on their outer sides and each fitted therein with a conical or
cupped metal bearing piece into and against which the pointed axis of a closing
screw, working in a surmounting part of the said cap, enters and bears, so that,
the axes of the closing screws and of the valve being coincident and the valve
being mounted in an elastic diaphragm peripherally secured all around, the valve
will always close dead against the said openings, and will not be liable to cant or to
be canted aside, and, moreover, there will be no liability of leakage either of the
compressed gas or of the liquid.
In lieu of forming and mounting the valve as aforesaid, it may be made of a
concentrically corrugated formation or of a disc-like formation peripherally retained
as aforesaid, or it may be soldered around its periphery so as to ensure an hermetic
joint or closure, the under surface of its centre part being plain and adapted to
close the said openings, and the upper surface of its central part being adapted to
receive the pointed end of the closing screw.
In either of such modifications, upon the pressure of the screw being relieved by
reversing it, the resiliency of the diaphragm causes the relative valve to open.
Dated this 18th day of December 1890.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improved. Valve Apparatus, applicable to Apparatus for Aerating
Liquids and for other uses.
I, MORTIMER EVANS, of Savile Club, Piccadilly, in the County of London,
Engineer, 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 relates to improved valve apparatus which is especially applicable
to apparatus for charging water or other liquid with carbonic acid gas or for
analogous aerating purposes, though it may also be used for other purposes for
which it may be suitable.
On the accompanying drawings the improved valve apparatus is represented as
applied to the use above specified, the apparatus being thereon represented as
applied and used for closing and controlling the ports or passages through which
the liquid and gas respectively obtain access to the aerating chamber. It may also
and with equal advantage be applied and used for closing and controlling the port
or passage through which the aerated liquid passes from the aerating chamber, and
for closing the passage from such chamber to the guage-glass in the event of the
fracture of the latter.
Figure 1, of the accompanying drawings represents an advantageous arrangement
wherein a casting 4, screwed into the dome of the aerating chamber 5, is formed
with conveniently arranged ports or passages 6; 7, respectively leading into the
chamber the water-and-the-compressed gas from their respective supplies 8, 9.
The casting 4, is also represented as formed with a passage 10,-leading-from-thic
acrating chamber to a pressure-guage 20, (which may be of any usual or suitable
construction) used to indicated the pressure within the acrating-chamber..
A casting screwed to the other end of the chamber is in like manner formed withi
a passage for leading the aerated liquid from the-acrating chamber.
In accordance-with-the-invention the end of each such port or passage to be
closed or controlled, say, for example that leading from-the-water-supply to the
-aerating chamber is closed by a valve 11, formed preferably of celluloid (though it
may be also made of vulcanite, boxwood-or-other-suitable material) and adapted
to seat squarely against and to effectually close the end of such passage. The
valve is seated in a flanged cap 12, formed with a screwed stem and mounted in an
elastic diaphragm 13, which is retained all around its periphery between a seating 14,
projecting from the casting 4, and a boss 15, secured by a screwed cap 16, engaging
with the casting, the stem of the cap supporting the valve being on the other side
of the diaphragm fitted with a screwed cap 17, formed with a conical or cupped
bearing piece 18, into and against which the rounded end of a closing screw 19,
working in the boss 15, enters and bears. The axes of the closing screw 19, and
of the valve. 11, being coincident, and the valve being mounted in an elastic
diaphragm 13, peripherally secured all around, the valve will always close dead
against the opening of the passage it controls and will not be liable to cant or to be
canted aside, and, moreover, there will be no liability of leakage either of the
liquid or of the compressed gas.
In lieu of forming and mounting the valve as aforesaid, it may be flanged and
may be seated in a disc-like diaphragm 13, which may be peripherally secured
against the seating 14, by the screw cap 16, directly, the diaphragm bearing on an
elastic washer 22, and the valve being fitted with a loose bearing piece 18, as
represented in Figure 2. Or the diaphragm may be made of a concentrically
corrugated formation fitted with a valve closing piece 11, centrally of. its one side
and with a cupped piece 18, adapted to receive the rounded end of the closing
screw 19, centrally of its other side, ride Figure 3. Or the diaphragm may be
soldered around its periphery so as to ensure an hermetic joint or closure and may

page_text: be formed with a plain centre part on its one side adapted to serve as the valve and
to be pressed squarely against the said opening, by a metal piece 18 slightly
rounded on the under side and adapted on the other side to receive the rounded
end of the closing screw.
In any of such modifications, upon the pressure of the closing screw 19, being
relieved, by reversing it, the resiliency of the diaphragm 13, will cause the relative
valve to open.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
1. The hereinbefore described improved valve apparatus consisting of a valve
centrally mounted in an elastic diaphragm secured all around its periphery, and a
closing screw with its axis coincident with that of the valve, such parts being so
mounted in relation to each other as to co-operate in the manner aforesaid.
2. The particular arrangements of such apparatus herein before described with
reference to the accompanying drawings.
Dated this 18th day of September 1891.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicant.