Improvements in Apparatus for Producing Carbonic Acid and similar Gas.
Year: 1890

page_text: Date of Application, 21st Mar., 1890
Complete Specification Left. 3rd Dec., 1890-Accepted, 14th Feb., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by LA SOCIÉTÉ JPH. JAY ET JALLIFFIER, of
31, Rue de L'Hotel-de-Ville, Lyon, in the Republic of France, Manufacturers.]
Improvements in Apparatus for Producing Carbonic Acid and
similar Gas.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:--
This invention relates to apparatus for automatically producing carbonic acid
and similar gas under pressure.
The improved apparatus will hereinafter be described only in its application to
the production of carbonic acid gas under pressure but it is understood that the
same can also be used for producing any other gas capable of being formed by a
chemical reaction similar to that in which the carbonic acid gas is formed in the
said apparatus.
This apparatus comprises a metallic receptacle enamelled on the inside. which is
hermetically closed by a lid through the medium of a bridge piece supporting a
screw which presses upon the said lid. A vessel of glass or enamelled porcelain
for holding bicarbonate of soda is perforated with holes at its bottom. Another
vessel made of glass is placed in the aforesaid receptacle and is designed to receive
acidulated water. Against the underside of this second vessel bears the end of a
rod whose other end is supported at the bottom of an india rubber tube which
communicates with the above mentioned receptacle being arranged at the lower end
of the same.
This tube is fixed at its upper extremity by means of a flanged collar
and is surrounded by helical wire and a protecting tube.
When pressure is brought to bear against the interior of this tube the wire will
not allow it to become wider so that it will be lengthened in the downward direction
proportionately to the varying pressure inside. To the extremity of the india
rubber tube is secured a metal cap provided with pivots for links connecting it with
one arm of a lever whose other arm has a number of holes formed in it to enable a
counterweight to be hooked to the aforesaid arm of the lever at definite distances
from the fulcrum of the latter. Accordingly the movements which may be imparted
to the lower extremity to the india-rubber tube will be transmitted to this lever and
vice versa.
The above mentioned receptacle is provided with the requisite fittings such as a
cock, a pressure gauge a safety valve which will act only in case the vessel holding
the bicarbonate of soda should break, and with a short tube which can be put in
communication with the barrels or other receptacles which are to be supplied with
the gas.
The operation of the improved apparatus is very simple. Water acidulated in
the ordinary proportion is introduced into one of the above mentioned vessels, and
bicarbonate of soda, not in the form of powder, as hitherto, but in the form of cakes
or blocks. The contact of the latter with the acidulated water gives rise to a
regular disengagement of carbonic acid gas, thus obviating the danger of explosion
and also the other inconveniences resulting from too quick a production of gas.
By means of the counter weight hereinbefore referred to which is placed at the
desired point of the lever arm, the lower end of the india-rubber tube is now raised
and with it the rod placed in this tube and bearing against the bottom of the vessel
containing the acidulated water, so that the latter vessel will also be raised
until the level of the acidulated water contained therein will be a short distance

page_text: above the perforated bottom of the vessel containing the cakes or blocks of
bicarbonate of soda. In this manner carbonic acid gas and therefore pressure is
produced whereupon the aforesaid india-rubber tube is lengthened by reason of the
pressure of the gas therein, the latter occupying all the free space between the said
vessels and the receptacle and in the interior of the india-rubber tube so that the
rod in this tube will descend together with the vessel containing the acidulated
water. Thus the level of the latter descends again below the cakes or blocks of
bicarbonate of soda and the generation of the gas ceases.
The contact of the acidulated water with the bicarbonate will be again produced
if the pressure is lessened owing to the withdrawal of gas for use. The same
operation as above described will be repeated when the pressure of the said counter-
weight overcomes the pressure of the gas that is to say, each time when a quantity
of gas is drawn off for use.
This apparatus operates automatically and there is no danger of explosion.
Moreover, absolutely pure gas is generated for neither the gas nor the acidulated
water comes in contact with any parts that are covered with lead as in similar
apparatus where the gas is charged with salts of lead and other impurities owing to
its action upon the metallic receptacles.
Under these circumstances it will be understood that the clearing or purifying
devices heretofore used in apparatus of the same class can be dispensed with.
Dated this 21st day of March 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Producing Carbonic Acid and
similar Gas.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 apparatus for automatically producing carbonic acid and
similar gas under pressure.
The improved apparatus will hereinafter be described only in its application to
he production of carbonic acid gas under pressure but it is understood that the
same can also be used for producing any other gas capable of being formed by a
chemical reaction similar to that in which the carbonic acid gas is formed in the
said apparatus.
The accompanying drawing (Figures 1 and 2) shows the improved apparatus in
section.
The said apparatus comprises a metallic receptacle A enamelled on the inside,
which is hermetically closed by a lid B through the medium of a bridge piece C
supporting a screw which presses upon the said lid B.
D is a vessel of glass or enamelled porcelain for holding bicarbonate of soda.
The said vessel is perforated with holes at its bottom as at a. Another vessel E
made of glass is placed in the aforesaid receptacle A and is designed to receive
acidulated water. Against the underside of this vessel E bears the end of a rod F
the other end of which is supported on the bottom of an india-rubber tube G which
communicates with the above mentioned receptacle being arranged at the lower
end of the same. This tube is fixed at its upper extremity by means of a flanged
collar d and is surrounded by a helical wire and a protecting tube.
When pressure is brought to bear against the interior of this tube the wire will
not allow it to become wider so that it will be lengthened in the downward
direction proportionately to the varying pressure inside. To the extremity of
the india-rubber tube is secured a metal cap H provided with a pivot for links

page_text: connecting it at O' with one arm J of a lever whose other arm I has a number of
holes formed in it to enable a counterweight O to be hooked to the aforesaid arm
of the lever at definite distances from the fulcrum K of the latter. Accordingly
the movements which may be imparted to the lower extremity of the india-rubber
tube will be transmitted to this lever and rice rer.
A tube I is arranged around the said india-rubber tube for protecting it.
The above mentioned receptacle A is provided with the requisite fittings such
as a cock M a pressure gauge R; a safety valve S which will act only in case
the vessel D holding the bicarbonate of soda should break and with a short tube T
which can be put in communication with the barrels or other receptacles which are
to be supplied with the gas.
The operation of the improved apparatus is very simple. Water acidulated in
the ordinary proportion is introduced into the vessel E and bicarbonate of soda
into the vessel D the said bicarbonate of soda being in the form of cakes or blocks.
and not in the form of powder as hitherto. The contact of the latter with the
acidulated water gives rise to a regular disengagement of carbonic acid gas, thus
obviating the danger of explosion and also the other inconveniences resulting from
too quick a production of gas.
By means of the counterweight hereinbefore referred to which is placed at
the desired point of the lever arm I J the lower end of the india-rubber tube G
is now raised, the pivots 001 assuming the positions shown in dotted lines and
with it the rod F placed in this tube and bearing against the bottom of the vessel E
containing the acidulated water, so that the latter vessel will also be raised until
the level of the acidulated water contained therein will be raised to the level of
the line marked X X a short distance above the perforated bottom of the vessel D
containing the cakes or blocks of bicarbonate of soda. In this mauner carbonic
acid gas and therefore pressure is produced whereupon the aforesaid india-rubber
tube is lengthened by reason of the pressure of the gas therein, the latter
occupying all the free space between the said vessels and the receptacle and in the
interior of the india-rubber tube, so that the rod F in this tube will descend
together with the vessel E containing the acidulated water. Thus the level of the
latter descends again below the cakes or blocks of bicarbonate of soda and the
generation of the gas ceases.
The contact of the acidulated water with the bicarbonate will be again produced
if the pressure is lessened owing to the withdrawal of gas for use.
The same
operation as above described will be repeated when the pressure of the said
counterweight O overcomes the pressure of the gas that is to say: cach time when
a quantity of gas is drawn off for use.
This apparatus operates automatically and there is no danger of explosion.
Moreover absolutely pure gas is generated for neither the gas nor the acidulated
water comes in contact with any parts that are covered with lead as in similar
apparatus where the gas is charged with salts of lead and other impurities owing
to its action upon the metallic receptacles.
Under these circumstances it will be. understood that the cleaning or purifying
devices heretofore used in apparatus of the same class can be dispensed with.
It will be understood that this apparatus is also applicable to the production
(under pressure) of any other gas capable of being produced by like means that is
to say by the action of a liquid contained in one receptacle on a solid matter held
by another receptacle.
Moreover the invention is not confined to the use of the exact form of apparatus
herein described as the same may be modified without departing from the nature of
the invention.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated
to me by my foreign correspondent I declare that what I claim is :-
First In the automatic production of carbonic acid or other gas under pressure,.

page_text: the arrangement of the receptacle A, the lid B and bridge piece C in combination
with the glass vessels D and E as above described and represented in the
drawing.
Second The arrangement of the receptacle A the lid B the bridge picce C the
glass vessels D and E in combination with the shaft with the india-rubber
regulator Gas above described and shown in the drawing.
Third The arrangement of the receptacle A the lid B, the bridge picce C, the
glass vessels D and E, the shaft F of the regulator, the regulator G in combination
with the cap H furnished with pivots 00 and the lever I provided with its
counterweight 2 as above described and represented in the drawing.
Fourth In the automatic production of carbonic acid or other gas under
pressure the employment of glass vessels as above specified.
Fifth In the production of carbonic acid or other gas under pressure the
employment of bicarbonate of soda in the form of small cakes as above set
forth.
Dated this 3rd day of December 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.