Improvements in Apparatus for Generating Carbonic Acid Gas.
Year: 1888

page_text: Date of Application, 1st Dec., 1888
Complete Specification Left, 2nd Sept., 1889-Accepted, 12th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Generating Carbonic Acid Gas.
I FREDERICK FOSTER of Niagara Works Eagle Wharf Road, Hoxton in the
County of Middlesex, Engineer do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in apparatus for generating and storing
carbonic acid gas.
Although these improvements especially apply to the apparatus described in the
specification filed in respect of my prior application No. 16084 of the year 1887, they
are also applicable to any of the ordinary gas generators in use, for the production of
carbonic acid gas, if the whiting or other carbonate employed is fed into tho
generator, without admission of air to the generator by way of the whiting inlet
aperture.
According to this invention I construct the body of the generator with acid inlet
connection, gas outlet connection and outlet connection for the spent materials and
I surmount the body of the generator with a compartment forming part of the
body of the generator itself, excepting that an aperture controlled by a valve, or
other means of opening and closing, must be provided for admitting the mixture
of whiting and water from the upper compartment of the generator. It is also
preferable to pass the rod of the agitators through the wall or plate separating
the upper compartment so that fans may be fitted, both in the upper compartment
and in the lower compartment of the generator itself.
In order to provide for the discharge of the spent materials without adinission of
air to the body of the generator, I provide a pipe branching off from the pipe which
conveys the gas from the generator to the gasometer, with or without a purifyer
intervening, and I carry this pipe to, and connect it with, a valve chamber attached
for convenience to the gasometer tub.
From this valve chamber I carry an india rubber or flexible pipe and connect it
with the upper part of the rising bell of the gasometer, the length and flexibility of
this last mentioned pipe providing for the rise and fall of the gasometer as required.
The valve chamber contains a valve controlling the passage of gas through this
valve chamber, in the following manner.
When it is required to discharge the spent materials from the generator, some of the
gas contained in the gasometer bell will pass therefrom by the flexible pipe to the
valve chamber and lifting the valve therein contained will pass back to the generator,
to fill up any void which the discharge of spent materials would otherwise cause to
exist and would make it impossible for any appreciable quantity of the spent materials
to escape without the admission of atmospheric air at the same time.
Instead of carrying the branch pipe, herein before referred to, from the generator to
the valve box, an independent pipe with a valve chamber corresponding with the valve
chamber hereinbefore mentioned, intervening may be carried directly from the
generator and enter the gasometer tub near its base, rising within, to a level above
the water therein contained, in the manner in which gas outlet pipes from such
gasometers, are usually fitted.
By the arrangement herein before described it becomes impossible for the gas to
pass outward from the generator to the gasometer by way of the branch pipe and

page_text: valve chamber provided, which nevertheless allow gas to pass in a contrary direction
from the gasometer to the generator for the purpose referred to.
The gas passing from the generator to the gasometer must pass through the
purifyer, when a purifyer is employed and thence, or in case of no purifyer being
employed, then directly to the gasometer, entering therein by way of an ordinary
gasometer gas inlet pipe bent over at its extremity to dip several inches into the
water contained in the gasometer so as to provide thereby for a further purification
and at the same time for the necessary cooling and expansion of the gas to make it
the better adaptable for employment in the manufacture of aerated waters.
Dated this 1st day of December 1888.
FREDK. FOSTER.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Generating Carbonic Acid Gas.
I FREDERICK FOSTER of No. 26 Eagle Wharf Road Hoxton in the County of
Middlesex Engineer 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 improvements in apparatus for generating and storing
carbonic acid gas.
Although these improvements especially apply to the apparatus described in the
specification of Letters Patent No. 16084 of the year 1887 they are also applicable to
any other form of apparatus for the production of carbonic acid gas, in which the
whiting or other carbonate employed is fed into the generator without admission
of air to the generator by way of the whiting inlet aperture.
In the accompanying drawings illustrating the apparatus constructed in accordance
with this invention Fig. 1 is an elevation of the complete apparatus partly in section.
Fig. 2 is an enlarged sectional view of the valve chamber S.
The body of the generator D is provided with an acid inlet connection G, gas out-
let connection L and outlet connection F for the spent materials and the body. of
the generator is surmounted with a compartment forming part of the body of
the generator itself and entirely separated therefrom, excepting that an aperture
controlled by a valve E or other means of opening and closing, must be provided
for admitting the mixture of whiting and water from the upper compartment C.
It is also preferable to pass the rod of the agitators B through the wall or plate V
separating the compartments () and D so that fans may be fitted in both of these
compartments.
In order to obtain the discharge of the spent materials at the outlet F without
admission of air to the body of the generator I provide a pipe W branching off
from the pipe which conveys the gas from the generator to the gasometer with or
without a purifyer intervening and I carry this pipe W to and connect it with a valve
chamber S attached for convenience to the gasometer tub.
From this valve chamber SI carry an india rubber or flexible pipe X and connect
it with the upper part of the rising bell at T, the length and flexibility of this
last mentioned pipe X providing for the rise and fall of the gasometer bell as
required.
The valve chamber S contains a valve Y (see Fig. 2) controlling the passage of gas
through this valve chamber in the following manner.
When it is required to discharge the spent materials from the generator, some of
the gas contained in the gasometer bell will pass therefrom by the Hexible pipe X to
the valve chamber S and lifting the valve Y therein contained will pass back to the
generator to fill any void which the discharge of spent materials would otherwise
cause to exist making it impossible for any appreciable quantity of the spent materials
to escape without the admission of atmospheric air at the same time.
Instead of employing the branch pipe W and the flexible pipe X hereinbefore

page_text: referred to, an independent pipe with a valve chamber, corresponding with the
valve chamber S, intervening, may be carried directly from the generator and enter
the gasometer tub near its base, rising within to a level above the water therein
contained in the manner in which gas outlet pipes from gasometers are usually fitted.
I am aware that it has been previously proposed to connect the gasometer and
generator by means of an open pipe so as to prevent the admission of air when
cleansing the generator but by the arrangement hereinbefore described it becomes
impossible for the gas to pass outward from the generator to the gasometer by way of
the branch pipe W owing to the stoppage in that direction provided by the valve Y
in the valve chamber S but the gas is free to pass in a contrary direction from the
gasometer to the generator for the purpose specified.
The gas passing from the generator to the gasometer goes through the purifyer
entering at M and leaving by the outlet N when a purifyer is employed and thence
it passes, or in case of no purifyer being employed then it passes directly to the
gasometer entering therein by way of an ordinary gasoneter gas inlet pipe, bent
over at its extremity P to dip several inches into the water contained in the
gasometer so as to provide thereby for a further purification and at the same time
for the necessary cooling and expansion of the gas to make it the better adaptable
for employment in the manufacture of aerated waters when drawn off through the
pipe Q
According to the arrangement of the apparatus shown by the accompanying
drawing a receptacle K is provided to contain the estimated quantity of acid to
evolve the gas from the quantity of carbonate contained in the compartment C
quantities of each being admitted periodically by hand ar automatically in the manner
described in the specification of Letters Patent No. 16084 of the year 1887 herein-
before referred to, a glass guage tube H being provided to afford an indication of the
approaching necessity to replenish the stores of acid and carbonate.
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 :-
In apparatus for generating carbonic acid gas the combination of the pipe W,
valve chamber S and flexible pipe X or its equivalent as described to allow gas to
return from the gasometer to the generator for assisting to discharge the spent
materials and to prevent the gas from passing from the generator to the gasometer
without proceeding through the usual dipping pipes (such as M and P) provided for
purifying expanding and cooling the gas before storing in the gasometer bell.
Dated this 31st day of August 1889.
AYRTON & THOMAS,
Agents for the Applicant.

page_text: Date of Application, 1st Dec., 1888
Complete Specification Left, 2nd Sept., 1889 Accepted, 12th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Generating Carbonic Acid Gas.
I FREDERICK FOSTER of Niagara Works Eagle Wharf Road, Hoxton in the
County of Middlesex, Engineer do hereby declare the nature of this invention
to bo as follows
This invention relates to improvements in apparatus for generating and storing
carbonic acid gas.
Although these improvements especially apply to the apparatus described in the
specification filed in respect of my prior application No. 16084 of the year 1887, they
are also applicable to any of the ordinary gas generators in use, for the production of
carbonic acid gas, if the whiting or other carbonate employed is fed into the
generator, without admission of air to the generator by way of the whiting inlet
aperture.
According to this invention I construct the body of the generator with acid inlet
connection, gas outlet connection and outlet connection for the spent materials and
I surmount the body of the generator with a compartment forming part of the
body of the generater itself, excepting that an aperture controlled by a valve, or
other means of opening and closing, must be provided for admitting the mixture
of whiting and water from the upper compartment of the generator. It is also
preferable to pass the rod of the agitators through the wall or plate separating
the upper compartment so that fans may be fitted, both in the upper compartment
and in the lower compartment of the generator itself.
In order to provide for the discharge of the spent materials without admission of
air to the body of the generator, I provide a pipe branching off from the pipe which
conveys the gas from the generator to the gasometer, with or without a purifyer
intervening, and I carry this pipe to, and connect it with, a valve chamber attached
for convenience to the gasometer tub.
From this valve chamber I carry an india rubber or flexible pipe and coniect it
with the upper part of the rising bell of the gasometer, the length and flexibility of
this last mentioned pipe providing for the rise and fall of the gasonietor as required.
The valve chamber contains a valve controlling the passage of gas through this
valve chamber, in the following manner.
When it is required to discharge the spent materials from the generator; some of the
gas contained in the gasometer bell will pass therefrom by the flexible pipe to the
valve chamber and lifting the valve therein contained will pass back to the generator,
to fill up any void which the discharge of spent materials would' otherwise cause to
exist and would make it impossible for any appreciable quantity of the spent materials
to escape without the admission of atmospheric air at the same time.
Instead of carrying the branch pipe, hereinbefore referred to, from the generator to
the valve box, an independent pipe with a valve chamber corresponding with the valve
chamber. herein before mentioned, intervening; may be carried directly from the
generator and enter the gasometer tüb near its base, rising within, to a level above
the water therein contained, in the manner in which gas outlet pipes" from such
gasometers, are usually fitted.
By the arrangement herein before described it becomes impossible for 'the gas to
pass outward froin the generator to the gasometer by way of the branch pipe and
valve chamber provided, which nevertheless allow gas to pass in a contrary 'direction
from the gasométer to the generator for the purpose referred to.
The gas passing from the generator to the gasometer must pass through the
purifyer, when a purifyer is employed and thence, or in case of no purifyér being
employed, then directly to the gasometer, entering therein by way of an ordinary

page_text: gasometer gas inlet pipe bent over at its extremity to dip several inches into the
water contained in the gasometer so as to provide thereby for a further purification
and at the same time for the necessary cooling and expansion of the gas to make it
the better adaptable for employment in the manufacture of aerated waters.
Dated this 1st day of December 1888.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Generating Carbonic Acid Gas.
1 FREDERICK FOSTER of No. 26 Eagle Wharf Road Hoxton in the County of
Middlesex Engineer 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 improvements in apparatus for generating and storing
carbonic acid gas.
Although these improvements especially apply to the apparatus described in the
specification of Letters Patent No. 16084 of the year 1887 they are also applicable to
any other form of apparatus for the production of carbonic acid gas, in which the
whiting or other carbonate employed is fed into the generator without admission
of air to the generator by way of the whiting inlet aperture.
In the accompanying drawings illustrating the-apparatus constructed in accordance
with this invention Fig. 1 is an elevation of the complete apparatus partly in section.
Fig. 2 is an enlarged sectional view of the valve chamber S.
The body of the generator D is provided with an acid inlet connection G, gas out-
let connection L and outlet connection F for the spent materials and the body of
the generator is surmounted with a compartment C forming part of the body of
the generator itself and entirely separated therefrom, excepting that an aperture
controlled by a valve E or other means of opening and closing, inust be provided
for admitting the mixture of whiting and water from the upper compartment C.
It is also preferable to pass the rod of the agitators B through the wall or plate V
separating the compartments C and D so that fans may be fitted in both of these
compartments.
In order to obtain the discharge of the spent materials at the outlet F without
admission of air to the body of the generator I provide a pipe W branching off
from the pipe which conveys the gas from the generator to the gasometer with or
without a purifyer intervening and I carry this pipe W to and connect it with a valve
chamber S attached for convenience to the gasometer tub.
From this valve chamber S I carry an india rubber or flexible pipe X and connect
it with the upper part of the rising bell at T, the length and flexibility of this
last mentioned pipe X providing for the rise and fall of the gasometer bell as
required.
The valve chamber S contains a valve Y (see Fig. 2) controlling the passage of gas
through this valve chamber in the following manner.
When it is required to discharge the spent materials from the generator, some of
the gas contained in the gasometer bell will pass therefrom by the flexible pipe X to
the valve chamber S and lifting the valve Y therein contained will pass back to the
generator to fill any void which the discharge of spent materials would otherwise
cause to exist making it impossible for any appreciable quantity of the spent materials
to escape without the admission of atmospheric air at the same time.
Instead of employing the branch pipe W and the flexible pipe X herein before
referred to, an independent pipe with a valve chamber, corresponding with the
valve chamber S, intervening, may be carried directly from the generator and enter
the gasometer tub near its base, rising within to a level above the water therein
contained in the manner in which gas outlet pipes from gasometers are usually fitted.
By the arrangement herein before described it becomes impossible for the gas to
pass outward from the ganerator to the gasometer by way of the branch pipe W

page_text: owing to the stoppage in that direction provided by the valve Y in the valve
chamber S but the gas is free to pass in a contrary direction from the gasometer
to the generator for the purpose specified.
The gas passing from the generator to the gasometer goes through the purifyer
entering at M and leaving by the outlet N when a purifyer is employed and thence
it passes, or in case of no purifyer being employed then it passes directly to the
gasometer entering therein by way of an ordinary gasometer gas inlet pipe, bent
over at its extremity P to dip several inches into the water contained in the
gasometer so as to provide thereby for a further purification and at the same time
for the necessary cooling and expansion of the gas to make it the better adaptable
for employment in the manufacture of aerated waters when drawn off through the
pipe Q
According to the arrangement of the apparatus shown by the accompanying
drawing a receptacle K is provided to contain the estimated quantity of acid to
evolve the gas from the quantity of carbonate contained in the compartment C
quantities of each being admitted periodically by hand or automatically in the manner
described in the specification of Letters Patent No. 16084 of the year 1887 herein-
before referred to, a glass guage tube H being provided to afford an indication of the
approaching necessity to replenish the stores of acid and carbonate.
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 :-
:—
In apparatus for generating carbonic acid gas the combination of the pipe W,
valve chamber S and flexible pipe X or its equivalent to allow gas to return
from the gasometer to the generator for assisting to discharge the spent materials
and to prevent the gas from passing from the generator to the gasometer without
proceeding through the usual dipping pipes (such as M and P) provided for purifying
expanding and cooling the gas before storing in the gasometer bell.
Dated this 31st day of August 1889.
AYRTON & THOMAS,
Agents for the Applicant.