Year: 1895

page_text: I, JEAN BAPTISTE GRISEZ, of Lachapelle-sus-Rougemont, (Haut-Rhin),
France, Brewer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a novel process for the aeration, oxidation, and
oxygenation of wort while cooling in a closed vessel.
My process consists essentially in injecting air deprived of all impurities, into the
wort at the moment of its admission into the refrigerating apparatus the air thus
introduced circulating with the wort so that the aeration is effected at any
temperature. The oxidation of the wort by means of this process is far superior
to that obtained in the apparatus now in use and especially those wherein the
operation is exposed to the air. The degree of oxygenation may be regulated at
will by means of an air meter. My process may be applied to all kinds of existing
plant in a very simple way by branching upon the pipe through which the wort is
introduced into the refrigerator, a pipe provided with a stop cock for admitting air
under pressure.
In order to better explain the invention, I have illustrated in the accompanying
drawings, in an elementary manner, an example of one form of plant which may be
employed for carrying out the process. Figure 1 shews the general arrangement
and Figure 2 an end elevation of the refrigerating apparatus.
The
At the
The wort is received in a boiling condition, as usual in a completely closed vat a
whence it is conducted by the pipe b into the refrigerator c which may be of any
suitable arrangement, provided that the wort can be admitted at the lower part
and discharged at the upper part of the refrigerator in a continuous manner.
cooled wort is conveyed, by means of a pipe d, to the fermenting vat e.
point where the wort enters the refrigerator, a small pipe fis attached, said pipe
being connected to the compressed air pipe of the brewery or an air reservoir, the
air passing through a filter, wadding for example, in order to deprive it of the
whole of its impurities. This tube / enters the refrigerator tube and is provided
When
externally thereof with a stop cock g for regulating the admission of air.
the wort enters the refrigerator, the cock g is opened and the air drawn in by the
wort circulates together with it in the apparatus. The aeration is thus effected at
all temperatures as the air enters the wort while the latter is still nearly boiling
and follows it during its cooling until the wort reaches the fermenting vat e at the
fermenting temperature. Moreover, the aeration can be readily regulated by
means of cock g.

page_text: In practice the vat e would not be a fermenting vat but one in which the yeast
is added and where the nitrogenous matters which have become oxidized by the
air are deposited. The oxygenation is also effected at all temperatures, the wort
being, during the cooling, constantly in contact with air.
Dated this 19th day of November 1895.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
A Process for the Aeration, Oxidation, and Oxygenation of Wort.
I, JEAN BAPTISTE GRISEZ of Lachapelle-sous-Rougemont, (Haut-Rhin)
France, Brewer, 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 a novel process for the aeration, oxidation, and
oxygenation of wort while cooling in a closed vessel.
My process consists essentially in injecting air deprived of all impurities into the
wort at the moment of its admission into the refrigerating apparatus the air thus
introduced circulating with the wort so that the aeration is effected at any
temperature. The oxidation of the wort by means of this process is far superior
to that obtained in the apparatus now in use and especially those wherein the
operation is performed without protection from exposure to the air. The degree
of oxygenation may be regulated at will by means of an air meter.
My process may be applied to all kinds of existing plant in a very simple way
by branching upon the pipe through which the wort is introduced into the
refrigerator, a pipe provided with a stop cock for admitting air under pressure.
In order to better explain the invention I have illustrated in the drawing
accompanying my Provisional Specification in an elementary manner an example of
one form of plant which may be employed for carrying out the process. Figure 1
shews the general arrangement and Figure 2 an end elevation of the refrigerating
apparatus.
The
The wort is received in a boiling condition, as usual, in a completely closed vat a
whence it is conducted by the pipe 6 into the refrigerator c which may be of any
suitable arrangement provided that the wort can be admitted at the lower part
and discharged at the upper part of the refrigerator in a continuous manner.
cooled wort is conveyed by means of a pipe d to the fermenting vat e. At the
point where the wort enters the refrigerator, a small pipe f is attached, said pipe
being connected to the compressed air pipe of the brewery or an air reservoir, the
air passing through a filter, wadding for example, in order to deprive it of the
whole of its impurities. This tube enters the refrigerator tube and is provided
externally thereof with a stop cock for regulating the admission of air. When
the wort enters the refrigerator the cock g is opened and the air drawn in by the wort
circulates together with it in the apparatus. The aeration is thus effected at all
temperatures as the air enters the wort while the latter is still nearly boiling and
follows it during its cooling until the wort reaches the fermenting vate at the
fermenting temperature. Moreover the aeration can be readily regulated by
means of cock
In practice the vat e would not be a fermenting vat but one in which the yeast
is added and where the nitrogenous matters which have become oxidized by the air
are deposited. The oxygenation is also effected at all temperatures, the wort
being, during the cooling, constantly in contact with air.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The herein described process for effecting the aeration, oxidation, and oxygenation
of wort while cooling in a closed vessel, which consists essentially in injecting air
freed from impurities into the wort at the moment of its entry into the refrigerating
apparatus substantially as specified.
Dated this 15th day of August 1896.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents..