A Method of Obtaining and Utilising the Carbon Monoxide Evolved in the Production of Calcic Carbide, and Apparatus for that Purpose.
Year: 1898

page_text: Dato Application, ouin July, 1898
Complete Specification Left, 29th Apr., 1899-Accepted, 10th June, 1899
PROVISIONAL SPECIFICATION.
A Method of Obtaining and Utilising the Carbon Monoxide Evolved
in the Production of Calcic Carbide, and Apparatus for that
Purpose.
We, BENJAMIN HOWARTH THWAITE, of 29, Great George Street, Westminster,
in the County of London, Civil Engineer, and FRANK LACROIX GARDNER, of 32,
Old Jewry, in the City of London, Mining Engineer, do hereby declare the nature
of this invention to be as follows:-
This invention relates to the economic utilisation of the carbon mon-oxide
evolved in the production of calcic carbide.
In order to obtain a large evolution of carbon mon-oxide, we subject the interior
of the calcic carbide producer under a slight gaseous pressure by forcing in
carbon mon-oxide gas at the base of the producer, and driving it through the
producer throttling the outlet or causing the gas to issue against a head of water
The carbon-mon-oxide atmosphere prevents accidental production of acetylene
by presence of moist air in the producer, as air is excluded by the presence of
the carbon mon-oxide under pressure.
.
The carbon mon-oxide introduced into the producer receives as it passes through
the carbon mon-oxide, resulting from the reaction of the lime and carbon. The
carbon mon-oxide issuing from the producer of calcic carbide is received in a
gas holder from which portions of it are automatically discharged into a chamber
where they are mixed with gases from a producer or from a blast furnace these
being purified so as to be available for generating heat or power.
For carrying out the process above described apparatus are employed comprising
a producer of carbon mon-oxide, a blower, a throttled outlet from calcic carbide
producer, a gas holder and appliances for purifying the gases.
Special means are also adopted for feeding the lime and carbon into the producer
of the calcic carbide and discharging the calcic carbide in such a way as to
maintain a certain pressure and provide against presence of moisture.
When the calcic carbide has to be pulverised, the crushing or other pulverising
apparatus is enclosed in a casing into which some of the carbon mon-oxide is
introduced under slight pressure, so as to prevent entrance of moist air.
Dated this 30th day of July 1898.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
A Method of Obtaining and Utilising the Carbon Monoxide Evolved
in the Production of Calcic Carbide, and Apparatus for that
Purpose.
We, BENJAMIN HOWARTH THWAITE, of 29, Great George Street, Westminster,
in the County of London, Civil Engineer, and FRANK LACROIN GARDNER, of 32,

page_text: Old Jewry, in the City of London, Mining 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 the economic utilisation of the carbon mon-oxide
evolved in the production of calcic carbide.
In order to obtain a large evolution of carbon mon-oxide, we subject the interior
of the calcic carbide producer under a slight gaseous pressure by forcing in
carbon mon-oxide gas at the base of the producer and driving it through the
producer, throttling the outlet or causing the gas to issue against a head of water,
or other suitable liquid, or a check valve.
The carbon mon-oxide atmosphere prevents accidental production of acetylene
by presence of moist air in the producer, as air is excluded by the presence of
the carbon mon-oxide under pressure.
The carbon mon-oxide introduced into the producer receives, as it passes through,
the carbon mon-oxide, resulting from the reaction of the lime and carbon. The
carbon mon-oxide issuing from the producer of calcic carbide is received in a
gas holder from which portions of it are automatically discharged into a chamber
where they are mixed with gases from a producer or from a blast furnace these
being purified so as to be available for generating heat or power.
For carrying out the process above described we employ apparatus which we
shall describe referring to the accompanying drawings.
Fig. 1 is a general plan, Fig. 2 is a vertical section of a calcic carbide producer,
and Fig. 3 is a vertical section of a modified form of producer.
As shewn in Fig. 1, a is the producer b is a gas holder and c is a blower or
compound fan by which carbon mon-oxide is drawn from the gas holder and forced
into the lower part of the producer, from the upper part of which it returns to
the holder accompanied by a farther quantity of carbon mon-oxide evolved in the
producer.
The producer, (Fig. 2) comprises a metal shell lined with refractory material d.
At the top it is provided with two rotating feeders e which may be worked by
worm gear and through the top passes the carbon electrode f which can be raised
or lowered along with an inverted cup g which dips into liquid forming a seal
preventing escape of gas. At the bottom is a door ½ of perforated carbon which
forms the other electrode, and which can be opened to discharge the calcic carbide
into a cavity from which it can be withdrawn by opening a door i. The carbon
mon-oxide from the blower passes a check valve into the cavity and thence
through the perforations of the door into the producer. From the producer
the carbon mon-oxide augmented by the quantity evolved in the producer passes
by a liquid seal / back to the gas holder.
The section Fig. 3 is not taken on one plane but on two vertical planes inclined
to one another in order to shew the electrode f on the one side and the gas outlet
and seal on the other side. It is to be understood that there is another electrode
opposite to f as indicated by the dotted line f¹. Instead of the hinged door h this
producer has a transversely sliding door m which is of refractory material per-
forated for passage of the entering gas. Below it is another, sliding door n which
is closed when m is opened to discharge carbide into the space p, and after m is
closed, is opened to discharge the carbide into the space k whence it can be with-
drawn by opening the door i.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, we declare that what
we claim is:
1. The herein described method of obtaining and utilising the carbon mon-oxide
evolved in the production of calcic carbide, by blowing carbon mon-oxide from
a gas holder through the calcic carbide producer and returning it to the holder
augmented by that evolved in the producer.

page_text: 2. For operating as above set forth apparatus comprising a producer, a gas
holder and a blower or its equivalent arranged, substantially as described.
3. The construction of producer, substantially as described with reference to
Fig. 2.
4. The modified construction of producer substantially as described with
reference to Fig. 3.
T
. 1
0001
1 1000