IMPROVEMENTS IN VALVE STOPPERS AND IN VALVES THEREFOR "
Year: 1885

page_text: I, JOHN JAMES VARLEY, of Charterhouse Buildings, Goswell Road, in the county
of Middlesex, Engineer, do hereby declare the nature of the said invention for
"IMPROVEMENTS IN VALVE STOPPERS AND IN VALVES THEREFOR "
to be as
follows:-
This invention relates to the manufacture of an improved valve for valve
stoppers and especially suitable for screw stoppers when used for closing bottles or
like vessels containing aërated or gaseous liquids.
Valve stoppers as hitherto constructed have not given satisfactory results whether
such stoppers have been provided with spindle or other valves.
In carrying out my invention as applied, for example, to a screw stopper I form
the stopper with a passage through it axially the said passage being contracted at
the top to form a seat for the improved valve hereinafter described such passage
also allows of the bottle being filled after the stopper has been screwed therein.
I manufacture my improved valve of combined soft and hard rubber, that is to
say, the upper part is made of the dough or material which when subjected to the
usual treatment will be converted into soft vulcanized india rubber and the lower
part or base of the valve I form of the dough or material which is used to form
hard vulcanized india rubber or ebonite. The valve is made of a shape to enter
and fit the above named valve seat. The valve made of the two doughs united in
one piece having been cured or vulcanized the upper part will be soft or flexible and
will serve to make a tight joint when pressed against the valve seat in the stopper
while the base of the valve being of a hard ebonite will prevent the valve from
being blown out of the stopper by the internal pressure within the bottle as
frequently happens with valves as hitherto constructed.
Another advantage of my improved valve stopper is that after a bottle has been
closed by one of the said improved stoppers and charged with liquid under pressure
the valve will be forced partly up into the contracted passage or seat of the stopper
and will remain fixed therein so that when the stopper is removed from the bottle
the valve will not drop or fall from its seat thereby allowing the stopper to be
eplaced in the bottle after the contents or part of the contents have been removed,
tight joint being still maintained.

page_text: In valve stoppers as hitherto constructed this object has only been attained by
employing a spring or its equivalent to hold up the valve.
When a bottle provided with one of my improved valve stoppers is to be filled
the valve is moved from its seat by the nipple of the filling machine or otherwise
60 as to allow the liquid to pass through the axial passage in the stopper into the
bottle and when the bottle is filled the internal pressure will again force the valve
tightly into its seat.
Any suitable arrangement such as a cross bar is provided to prevent the valve
falling out of the stopper.

page_text: 66
I JOHN JAMES VARLEY of Charterhouse Buildings, Goswell Road, in the county
of Middlesex, Engineer, do hereby declare the nature of my said invention for
IMPROVEMENTS IN VALVE STOPPERS AND IN VALVES THEREFOR" 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 the manufacture of an improved valve for valve
stoppers and especially suitable for screw stoppers when used for closing bottles or
like vessels containing aërated or gaseous liquids.
Valve stoppers as hitherto constructed have not given satisfactory results whether
such stoppers have been provided with spindle or other valves.
In order to enable my invention to be fully understood I will describe the same
by reference to the accompanying drawing, in which figure 1 is an elevation and
figure 2 a vertical section of a screw stopper provided with my improved valve;
figure 3 is a detached elevation of the valve. Similar letters in all the figures
represent similar parts.
In carrying out my invention as applied for example to a screw stopper such as
that shewn in the drawing, I form the stopper with a passage a, through it axially,
the said passage being contracted at the top at b, to form a seat for the improved
valve hereinafter described; such passage a also allows of the bottle being filled
after the stopper has been screwed therein.
I manufacture my improved valve of combined soft and hard rubber, that is to
say, the upper part c, is made of the dough or material which when subjected to
the usual treatment will be converted into soft vulcanized india rubber, and the
lower part or base d, of the valve I form of the dough or material which is used to
form hard vulcanized india rubber or ebonite. The valve as shewn in figure 3, is
made of a shape to enter the passage a, and to fit the above named valve seat b.
The valve made of the two doughs united in one piece, having been cured or
vulcanized, the upper part c, will be soft or flexible and will serve to make a tight
joint when pressed against the valve seat b, in the stopper as shewn in figure 2,
while the base d, of the valve, being of a hard ebonite, will prevent the valve from
being blown out of the stopper by the internal pressure within the bottle, as
frequently happens with valves as hitherto constructed; e, is a cross bar or pin
passed through the bottom of the stopper for preventing the valve from falling out.
The stopper shown in the drawing represents one made of a plastic material with
a sheath or coating f, of suitable material such as vulcanite-The stopper can
however be made of porcelain, glass, or like heat resisting material, in which case
the pin or bar e, can be moulded with the stopper and the valve, made of the two
kinds of rubber dough as above named, can be partly cured and then be passed
into the passage a, from the top of the stopper, and the curing or vulcanizing be
completed after it has been so introduced.
It will be obvious that the valve can be made of any suitable shape other than
that shown in the drawing.

page_text: Another advantage of my improved valve stopper is that, after a bottle has been
closed by one of the said improved stoppers and charged with liquid under pressure,
the valve will be forced partly up into the contracted passage or seat of the stopper
and will remain fixed therein, so that, when the stopper is removed from the bottle,
the valve will not drop or fall from its seat thereby allowing the stopper to be
replaced in the bottle after the contents or part of the contents have been removed,
a tight joint being still maintained.
In valve stoppers as hitherto constructed this object has generally been attained
by employing a spring or its equivalent to hold up the valve.
When a bottle provided with one of my improved valve stoppers is to be filled,
the valve is moved from its seat by the nipple of the filling machine or otherwise
so as to allow the liquid to pass through the axial passage a, in the stopper into
the bottle, and when the bottle is filled, the internal pressure will again force the
valve tightly into its seat.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what
I claim is
1. The manufacture of valves for stoppers by forming such valves of two kinds
of rubber dough and afterwards vulcanizing or curing the same, so as to produce
valves formed in one piece of combined hard and soft rubber, as hereinbefore
described.
2. The improved valve stopper hereinbefore described and represented in the
accompanying drawing.