Improvements in the Manufacture of Aërated Waters and in Apparatus therefor.
Year: 1888

page_text: 1888
Date of Application, 16th Aug.,
Complete Specification Left, 13th Mar., 1889
Complete Specification Accepted, 27th Apr., 1889
Improvements in the Manufacture of Aërated Waters and in
Apparatus therefor.
I MICHAEL O'BRIEN of 5 Henry Place, Dublin, Manufacturer of Aërated Waters,
do hereby declare the nature of this invention to be as follows :-
According to my invention and in order to improve the quality of aërated water,
and especially soda water and the like, I cool down the water and the gas to the
lowest degree of temperature practically useful or beneficial in the manufacture and
bottling of these waters. Both the gas and the water used in my process should be
in the purest condition practically possible.
A convenient manner of carrying out my invention is as follows. I provide a
large refrigerator conveniently made of wood lined with lead and fitted with a coil of
piping for the water to be pumped through, and also with a coil of piping for the
carbonic acid gas to be pumped through. The coils are carried round the inner sides
of the vessel which is charged with ice or freezing mixture for the purpose of cooling
down the water and the gas, which then pass to the condenser. The manufactured
aërated water on its way to the bottling machines is passed through block tin pipes
which are kept as cool as convenient for instance by being covered with felt or other
porous material or fabric upon which a constant flow or fine shower of water is run.
By this process the amalgamation of the purified carbonic acid gas with the filtered
water is accomplished in a much more concentrated form or manner than by any
process hitherto adopted and it is also found that the air is more perfectly eliminated
from the bottle in the process of filling than ordinarily is the case.
The water before being cooled and impregnated as described is generally first
filtered by passing it through a vessel containing silver sand and then through a
vessel containing animal charcoal.
The gas which is prepared in the best known manner is before being cooled and
passed to the condenser-first purified by being passed through three separate
purifiers.

page_text: Improvements in the Manufacture of. Aërated Waters and in
Apparatus therefor.
I, MICHAEL O'BRIEN of 5 Henry Place Dublin Manufacturer of Aërated Waters,
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:
According to my invention and in order to improve the quality of aerated water
and especially soda water and the like I cool down the water and the gas to the
lowest degree of temperature practically useful or beneficial in the manufacture and
bottling of these waters. Both the gas and the water used in my process should be
in the purest condition practically possible, but although I recommend it this forms
no necessary part of my invention.
A convenient manner of carrying out my invention is as follows:-In this example
I have given such proportions as would be suitable for a production of about
1,200 dozen bottles per day.
I provide a large refrigerator such for instance as shown in the perspective view
Figure 1. It is conveniently made in the shape of a wooden box A lined with lead
and fitted with a coil of piping B about 25 feet long more or less and about one inch
bore for the water to be pumped through and also with a coil of piping C about
30 feet long more or less and about one and a half-inch bore for the carbonic acid
gas to be pumped through. I do not of course limit myself to these diameters or
lengths of piping but merely give them as an example of suitable superficial cooling
areas.
A¹ is a lid on the box. The coils B and C are carried round the inner sides of the
box A which may be of square, rectangular, round, oval or other suitable shape or
form. The box A is charged with ice [or freezing mixture] for the purpose of
cooling down the water and the gas passing through the pipe coils B and C. Cocks
are conveniently provided at the inlet ends of the coils as shewn for regulating and
for shutting off the connection if desired or required.
The cooled gas and water thence pass to the so called condenser on the "soda
water machine where the cold water is saturated or impregnated with the cold
gas.
"
Figure 2 is an elevation of another form of refrigerator the left half of the figure
shewing the front of the box removed while the right half of the Figure is a section
through the middle of the box. In this case an interior compartment D is provided
which may be empty or be filled with a block of ice.
It is to be distinctly understood that although I have only described one form of
cooling apparatus which. I have found to answer the specific purpose I do not in
anywise bind myself to this form, as my process may be carried out by any other
suitable cooling apparatus or means or mode of cooling.

page_text: The manufactured carbonated or aërated water on its way to the bottling machines
is passed through block tin pipes which are kept as cool as possible for instance by
being covered with felt or other porous material or fabric upon which is run a
constant flow or fine shower of water.
By this process the amalgamation of the purified carbonic acid gas with the filtered
water is accomplished in a much more concentrated form or manner than by any
process hitherto employed and it is also found that the air is more perfectly eliminated
from the bottle in the process of filling than ordinarily is the case.
As regards the purity of the water and the gas I may say that the water before
being cooled and impregnated in general requires to be filtered first and this I prefer
to do by passing it through a vessel containing silver sand, and then through a
vessel containing animal charcoal. The gas should be prepared in the best known
manner and before undergoing the cooling process described the gas is purified by
being passed through three separate purifiers.
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:-
First. The improved manufacture of aerated water consisting in impregnating
the water with the carbonic gas at an artificially produced low temperature
substantially as set forth.
Second. In the manufacture of aerated water the cooling down of the water and
the carbonic acid gas to a low temperature before impregnation substantially as
set forth.
Third. The construction of refrigerator substantially as and for the purpose described
and shown.