Improvements in Acetylene Gas Generators.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Acetylene Gas Generators.
I, MAX BOHNE, of 90, Prinzenstrasse, Berlin S, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to an acetylene gas generator, presenting this charac-
teristic feature, that the generated acetylene gas-as it passes from the centre of
generation to the place, where it is to be consumed-is compelled to traverse that
portion of calcium carbide, which is piled up in a box above the dome of the
generator and which is to serve for the next following portion of gas to he
generated.
As the gas comes in contact with the carbide, the former gives off its moisture
to the latter, and a superficial calcination of the carbide takes place. The advan-
tages thus obtained consist, on the one hand, in the generated acetylene gas being
dried and, on the other hand, in the fact, that the carbide superficially calcined, by
the absorption of water will, as it is subsequently used not so energetically pro-
duce its gas but will do so in a uniform and regular manner.
The means by which, according to the present invention, this object is attained
consists of a feed-balance or rocking device pivotally arranged below the carbide
box or receptacle, which balance or rocking device serves as a support for the
carbide column and leaves a sufficient space for the gas to escape laterally. When
the slide cover of the gas generator has reached a certain low level, the said balance
or rocking device is caused to tip over by a rod touching the bottom and carbide
is thus thrown into the water.
In order that in using an apparatus of this kind, the cleaning and re-filling may
be effected during the working and, in order to further attain, that the carbide-
storage-boxes may be filled without air being admitted and without any appreciable
amount of gas being lost, the dome of the generator has a tubular insertion
arranged in its interior, the lower open end of which is immersed into the water,
while its upper part communicates with the gas chamber of the slide cover through
the intermediary of a gas conduit, capable of being cut off. By this arrangement
a special chamber for the dried acetylene is simultaneously formed.
This acetylene gas generator constructed according to the present invention
comprises a water reservoir and a dome or bell the cylindrical wall of which
extends above the top of such dome so that a space is formed above the latter
which, when filled with water, serves to exert a pressure upon the said dome.
The dome or bell is provided with a central tubular insertion and with a gas
receiving tube. The tubular insertion is fitted with a sieve shaped bottom, adapted
to retain the non-reduced carbon and carries at its top the carbide receiver, screwed
thereto. At the lower end of the hopper-shaped carbide receptacle, in the interior
of the tubular insertion, the bearing of the balance with the regulating-rod is
provided. Within the carbide receptacle terminates a downwardly bent gas pipa,
which is connected with the gas pipe of the dome by means of a sliding joint.
For cutting off the communication between the dome and the tubular insertion I
provide a cock arranged on the gas pipe of the dome.

page_text: The operation of the apparatus is essentially as follows:
Supposing the reservoir to be filled with water and the carbide box to be filled
with carbide, and supposing the regulating rod of the balance or rocking device
to be out of contact with the bottom of the vessel. If now on starting the working
of the apparatus, the air existing in the dome in discharged or if the withdrawal
of the already generated gas be such that the dome descends, the regulating-rod
will strike against the bottom and cause the balance to turn, so that carbide is
thrown into the water. The generation of gas which is now effected, causes the
dome to ascend. As the generated gas, saturated with moisture can only escape
by passing through. the .column of carbide resting on the balance device which
said column is always supplemented from the carbide receptacle and serves for
the subsequent generation of gas, the generated gas gives off its moisture to the
carbide and is utilized in a dry state. The moisture given off to the carbide
causes a layer of lime to, be formed upon the surface of the carbide, which layer,
during the subsequent use of the carbide, prevents the gas from being generated
too rapidly. The generated gas, dried by giving off moisture, passes through the
bent gas pipe into the space within the dome and into the gas-receiving pipe.
From the latter it passes through a discharge-pipe to the place of consumption.
Prior to the generation of gas, petroleum is poured into the gas-receiving-pipe,
which distributes itself upon the surface of the water in the space within the
dome thus preventing the water from coming in contact with the dried gas.
1301
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
improvements in Acetylene Gas Generators.
I, MAX BOHNE, of 90, Prinzenstrasse, Berlin S, in the Empire of Germany,
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 an acetylene gas generator having the characteristic
feature, that the generated acetylene gas-as it passes from the centre of generation
to the place, where it is to be consumed--is compelled to traverse that portion of
calcium carbide, which is piled up in a box above the slide cover of the generator
and which is to serve for the next following portion of gas to be generated.
As the gas comes in contact with the carbide, the former gives off its moisture
to the latter, and a superficial calcination of the carbide takes place. The advan-
tages thus obtained consist, on the one hand, in the generated acetylene gas being
dried and, on the other hand, in the fact, that the carbide superficially calcined, by
the absorption of water will, as it is subsequently used, not so energetically pro-
duce its gas but will do so in a uniform and regular manner.
The means by which, according to the present invention, this object is attained
consists of a feed-balance or rocking device pivotally arranged below the carbide
box or receptacle, which balance or rocking device serves as a support for the
carbide column and leaves a sufficient space for the gas to escape laterally. When
the slide cover of the gas generator has reached a certain low level, the said balance
or rocking device is caused to tip over by a rod touching the bottom and carbide
is thus thrown into the water..
I
In order that in using an apparatus of this kind, the cleaning and re-filling may

page_text: be effected during the working and, in order to further attain, that the carbide-
storage-boxes may be filled without air being admitted and without any appreciable
amount of gas being lost, the slide cover of the generator has a tubular insertion
arranged in its interior, the lower open end of which is immersed into the water,
while its upper part communicates with the gas chamber of the slide cover through
the intermediary of a gas conduit, capable of being cut off. By this arrangement
a special chamber for the dried acetylene is simultaneously formed.
In the accompanying drawing I have shown a vertical section of an acetylene
gas generator constructed according to the present invention.
A is the water reservoir and B the dome or bell the cylindrical wall of which
extends above the top of such dome so that a space is formed above the latter,
which, when filled with water, serves to exert a pressure upon the said dome.
The dome or bell B is provided with a central tubular insertion B and with a gas
receiving tube B². The tubular insertion is fitted with a sieve-shaped bottom B³,
adapted to retain the non-reduced carbon and carries at its top the carbide
receiver C, screwed thereto. At the lower end of the hopper-shaped carbide
receptacle, in the interior of the tubular insertion BI, the bearing D' of the balance D
with the regulating-rod 12 is provided. Within the carbide receptacle C termi-
nates a downwardly bent gas pipe E, which is connected with the gas pipe E' of
the dome by means of a sliding point Ez. For cutting off the communication
between the dome B and the tubular insertion B₁ I provide a cock arranged in
the gas pipe E¹ of the dome.
The operation of the apparatus is essentially as follows:
Supposing the reservoir A to be filled with water and the carbide box C to be
filled with carbide; and supposing the regulating-rod D2 of the balance or rocking
device I to be out of contact with the bottom of the vessel.
If now on starting the working of the apparatus the air existing in the dome
is discharged or if the withdrawal of the already generated gas be such, that the
dome descends, the regulating-rod D2 will strike against the bottom and cause
the balance to turn, so that carbide is thrown into the water. The generation of
gas which is now effected, causes the dome to ascend. As the generated gas,
saturated with moisture can only escape by passing through the column of
carbide I), resting on the balance device 1) which said column is always supple-
mented from the carbide receptacle C and serves for the subsequent generation
of gas, the generated gas gives off its moisture to the carbide and is utilized in
a dry state. The moisture given off to the carbide causes a layer of lime to be
formed upon the surface of the carbide, which layer, during the subsequent use
of the carbide, prevents the gas from being generated too rapidly. The generated
gas, dried by giving off moisture, passes through the bent gas pipe E, E¹ into the
space within the dome and into the gas-receiving-pipe 12. From the latter it
passes through a discharge-pipe M to the place of consumption. Prior to the
generation of gas, petroleum is poured into the gas-receiving-pipe B², which
distributes itself upon the surface of the water in the space within the dome thus
preventing the water from coming in contact with the dried gas.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. An acetylene gas generator, characterized by having a rocking flap or feed
balance arranged below the delivery opening of the carbide hopper adapted to
support the carbide column and operated so as to feed, through the alteration in
position of the parts of the apparatus due to the consumption of gas.
2. A form of acetylene gas generator as claimed in Claim 1, characterized by
a bell B having a centrally arranged internal chamber B¹ communicating by a
pipa E, E¹ with means for closing same, with the gas space of the bell and serving
to provide separate compartments for the newly evolved gas and the dried gas,

page_text: the arrangement being such as to enable the carbide hopper to be filled without
access of air and without loss of gas and also to allow of the cleaning and filling
being effected during the working of the apparatus.
3. A form of acetylene gas generator as claimed in Claim 1, characterised by
having its gas conduit E so arranged in the carbide hopper C as to cause the gas
from the bell to part with its moisture to the carbides ready for the next feed for
the generation of gas and thereby superficially calcinate these carbides.
Dlhi 14h love of t 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.