Improvements in Apparatus for Containing Compressed Carbonic Acid, and Charging Water or other Liquid therewith.
Year: 1898

page_text: Improvements in Apparatus for Containing Compressed Carbonic
Acid, and Charging Water or other Liquid therewith.
I, VICTOR ERNEST JULES DURAFORT, of 162, Boulevard Voltaire, Paris, in the
Republic of France, do hereby declare the nature of this invention to be as
follows:-
My invention has for its object to provide syphons and cartridges containing
compressed carbonic acid whereby aerated water or other liquid may be produced
charged with any desired proportion of gas the arrangement being such that
any proportion of the carbonic acid or the whole of the carbonic acid in the
cartridge or container can be admitted to the water or other liquid to be im-
pregnated therewith.
The cartridge or container of the carbonic acid is enclosed in a chamber at the
top of the syphon head. The lower part of this chamber may be of cast iron or
other suitable material with the usual or any suitable cocks and valves for drawing
off the aërated liquid, and when the cartridge or container is in place the top part
is screwed onto the lower part of the chamber. A ring of india-rubber or other
elastic material is placed between the parts of the chamber in order to ensure
an air-tight joint. The top part includes also a chamber separated from the
first named chamber by an elastic diaphragm normally kept in a horizontal
position, by a screw cap which exerts its pressure on a ring which in turn
bears on the edge of the diaphragm.
In a sleeve, screwed into the top of the cap, slides a piece which can be forced in
by pressure on a button at its end whereby the said piece is caused to descend and
to carry with it a button which presses on the diaphragm, which in turn depresses
a button which is on a stem passing through the opening in the valve casing at
the top of the cartridge or container. By this means the valve in the cartridge
or container (which valve is normally kept against its seat by the pressure inside
the cartridge) is caused to leave its seat and the carbonic acid then passes through
a small opening and enters the chamber and escapes therefrom through a tube
into the water or liquid in the syphon.
By successive operations of the button, small quantities of carbonic acid are
successively caused to escape into the water or liquid the valve returning to its
seat when no pressure is exerted on the button. Carbonic acid can thus be allowed
to escape from the cartridge or container very gradually into the water or liquid.
When it is wished to discharge the whole of the carbonic acid from the cartridge
or container into the water or liquid the valve can be lowered so that the cartridge
or container can be completely emptied without the necessity for the operator
keeping the pressure on the button. In this case, instead of the button being
pressed it must be turned for which purpose the piece by which the button is
carried is provided with a cross piece which engages in a cross slot in the screwed

page_text: part through which it passes so that when rotated it carries with it the said screwed
part which therefore screws down into the head and the lower button presses on
the diaphragm which in turn presses on the button to open the valve of the
cartridge or container which can thus be allowed to remain open until the car-
bonic acid has escaped from the cartridge or container when the parts can be
screwed back and resume their normal position.
21
To prevent danger from too sudden a discharge of the contents of the cartridge
or container, I provide a chamber with a small hole such chamber containing
safety-valve normally pressed to its seat by a spring. This valve controls a
channel communicating with the interior of the syphon.
When the internal pressure exceeds the limit to which the spring is set, the
valve is pressed from its seat, and the excess of gas escapes through the hole
until the normal pressure is re-established when the spring closes the valve.
Dated this 31st day of January 1898.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Improvements in Apparatus for Containing Compressed Carbonic
Acid, and Charging Water or other Liquid therewith.
I, VICTOR ERNEST JULES DURAFORT, of 162, Boulevard Voltaire, Paris, in the
Republic of France, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My invention has for its object to provide syphons and cartridges containing
compressed carbonic acid whereby aërated water or other liquid may be produced
charged with any desired proportion of gas the arrangement being such that
any proportion of the carbonic acid or the whole of the carbonic acid in the
cartridge or container can be admitted to the water or other liquid to be im-
pregnated therewith.
I will describe my invention with reference to the accompanying drawings.
Figure 1 represents in section an apparatus according to my invention.
Figure 2 is a section of the upper part of the head at right angles to Figure 1.
Figure 3 is a transverse section taken along the line 1-1 of Figure 2.
Figure 4 is an enlarged section of the upper part of the carbonic acid cartridge
or container.
.
2 represents the said cartridge or container which is enclosed in a chamber
at the top of the syphon head. The part 4 of this chamber may be of cast iron
or other suitable material with the usual or any suitable cocks and valves for
drawing off the aërated liquid and when the cartridge or container is in place the
top part 3 is screwed onto the lower part 4 by ears 7.
or other elastic material is placed between the parts 3 and 4 in order to ensure an
A ring 8 of india rubber
air-tight joint. The top part includes also a chamber 9 separated from the
chamber 5 by an elastic diaphragm 10 normally kept in a horizontal position
by a screw cap 11 which exerts its pressure on a ring 12 which in turn bears on
the edge of the diaphragm.
In a sleeve 13 screwed into the top of the cap 11 slides a piece 14 which can
be forced in by pressure on a button 15 at its end whereby the piece 14 is caused
to descend and to carry with it a button 16 which presses on the diaphragm 10
which in turn depresses a button 17 which is on a stem passing through the opening

page_text: in the valve casing at the top of the cartridge 2. By this means the valve 18
(which valve is normally kept against its seat 19 by the pressure inside the
cartridge) is caused to leave its seat and the carbonic acid then passes through a
small opening 20 and enters the chamber 5 and escapes therefrom through n
tube 21 into the water or liquid in the syphon.
By successive operations of the button 15 small quantities of carbonic acid are
successively caused to escape into the water or liquid, the valve 18 returning
to its seat 19 when no pressure is exerted on the button 15. Carbonic acid can
thus be allowed to escape from the cartridge or container 2 very gradually into the
water or liquid in the syphon.
When it is wished to discharge the whole of the carbonic acid from the
cartridge or container into the water or liquid, the valve 18 can be lowered so
that the cartridge or container can be completely emptied without the necessity
for the operator keeping the pressure on the button 15. In this case instead of
the button 15 being pressed it must be turned for which purpose (see Figure 3)
the piece 14 is provided with a cross piece which engages in a cross slot in the
part 13 so that when rotated it carries with it the said part 13, which therefore
screws down into the head 11 and the button 16 presses on the diaphragm 10
which in turn presses on the button 17 to open the valve 18, which can thus be
allowed to remain open until the carbonic acid has escaped from the cartridge or
container 2 when the parts can be screwed back and resume their normal position.
To prevent danger from too sudden a discharge of the contents of the cartridge
or container 2, I provide a chamber 22 with a small hole 23 such chamber con-
taining a safety valve 24 normally pressed to its seat by a spring 25. This valve
controls a channel 26 communicating with the interior of the syphon.
When the internal pressure exceeds the limit to which the spring is set, the
valve 24 is pressed from its seat and the excess of gas escapes through the hole 23
until the normal pressure is re-established, when the spring 25 closes the valve 24.
I do not limit myself to the precise details illustrated.
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. In apparatus for containing compressed carbonic acid, a cartridge or con
tainer of compressed gas provided at its upper part with a valve closed by internal
pressure and yielding to the pressure of a stem provided with a button or the
like in order to allow the gas to escape substantially as hereinbefore described and
illustrated more particularly in Figure 4 of the accompanying drawing.
2. In apparatus for containing compressed carbonic acid and impregnating
water or liquid therewith the combination with a cartridge or container as described
and claimed of an arrangement on the syphon head allowing of the cartridge
or container being opened for short periods only or of being kept open according
to whether pressure or rotation be exerted on the button of the syphon or con-
tainer substantially as herein before described.
Dated this 9th day of September 1898.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.