Improved Acetylene Gas Generator.
Year: 1898

page_text: Date of Application, 5th May, 1898-Accepted, 25th June, 1898
Improved Acetylene Gas Generator.
I, JULIUS HEINRICH SCHULKE, a subject of the Emperor of Germany, and
resident of No. 94, Leipzigerstrasse, Berlin, in the Empire of Germany, Engineer,
lo hereby declare the nature of my said 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 apparatus for generating acetylene gas, such
apparatus having several generators whose delivery pipes are provided with only
one liquid trap common to all pipes. On account of this arrangement, the
employment of a separate cock or valve for each delivery pipe is avoided and it is
possible to arrange or employ only one single stop-cock for all the delivery pipes
without there being any need to fear that interruptions will take place in con-
nection with the gas pressure.
The liquid forming the trap may at the same time serve for washing and clean-
ing the acetylene gas; in case of emergency suitable detergents for instance,
copper or iron vitriol may be dissolved in such liquid.
In order to still increase the efficiency of the cleaning, several of such liquid
traps may be arranged in such manner that the delivery pipes of the generator
enter into one liquid receptacle, the acetylene gas being conducted or fed from
the latter through. special communicating pipes to one or more liquid receptacles
provided below.
In the accompanying drawings are shown several modifications of the generator.
Fig. 1 shows an apparatus with ordinary liquid trap.
Fig. 2 & 3 show modifications of the apparatus having several liquid traps
arranged beneath each other.
The generators which may be of any suitable number are inserted into one
common receptacle A which is open above and whose walls A¹ extend beyond the
bottom A2 and enter into a liquid receptacle B. Each generator consists of a
A bell c is
carbide receptacle a which is inserted into a vessel b open above.
provided above the latter which communicates with a pipe g in which the delivery
pipe d enters. The pipes d are tightly passed through the bottom A² of the
receptacle A and extend with their lower ends below the water level of the
receptacle B.
In the modification according to Fig. 1, only one water trap is provided but
even two or more such traps may be arranged as shown in Figs. 2 & 3.
•
In the modifications according to Figs. 2 & 3, the walls B₁ of the receptacle B
extend below and enter into a receptacle C. Through the bottom B2 of the
receptacle B are pipes B³ tightly passed whose upper end enters the chamber
above the water level of the receptacle B and whose lower end immerses into the
water contained in the receptacle C. In order to extend the way which the
acetylene gas must take through the water, plates or walls DD' with their edges
turned downwards are preferably arranged at the lower ends of the pipes d & B³
respectively and the acetylene gas bubbles passing along such plates or walls
whereby the cleansing effect or action is increased.

page_text: The water inlet openings f of the carbide receptacles a are preferably arranged
step-wise at different heights whereby the carbide receptacles operate successively.
In order to set the apparatus in operation, the carbide receptacle with the lowest
inlet opening is first placed upon a delivery pipe d so that water passes through
the opening and the generation of acetylene gas is effected until such a pressure
is attained that the water in the pipe g with which the pipe d communicates is
pressed out of the bell c below the opening f.
The remaining generators are then put onto each delivery pipe individually.
Since the water cannot rise to the inlet openings f of these generators, which
lie higher than those of the first mounted generator, the generators which are
mounted or put on last cannot operate until the first generator is completely
exhausted whereupon a decrease of the pressure takes place so that the water
passes to the next higher inlet opening. The generators are therefore automatic-
ally, operated in succession. In order to attain this with perfect safety, the
delivery pipes d may preferably be also of various lengths in such manner that
the pipe corresponding to the generator with the lowest inlet opening is the
shortest and the delivery tubes of the remaining generators longer according to
the height of their inlet openings. Such an arrangement is shown in Fig. 3.
In the modification according to Figs. 2 & 3, the liquid receptacles C, in which
the pipes B³ immerse, are provided with overflow pipes near the upper edge out
of which the liquid fed from the receptacle B may run over.
The receptacles BB¹ are provided with outlets for the cleansed or purified
acetylene gas whereas the liquid is allowed to pass out of the receptacle through
openings adapted to be closed by screw plugs.
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 improved acetylene gas generator with several generators a character-
ized by the arrangement of one single water trap for all the acetylene gas delivery
pipes, such trap also being employed for washing and cleaning the acetylene gas
substantially as and for the purpose described.
2. In an improved acetylene gas generator, the arrangement of the delivery
tubes in such manner that they are connected at their lower ends by plates or
walls DD, along which the acetylene gas bubbles should pass, whereby the way
of the same through the liquid forming a trap for all pipes is extended and the
cleaning effect or action increased substantially as and for the purpose described.
3. In an improved acetylene gas generator, the arrangement of the inlet open-
ings of the generators a step-wise at different heights substantially as and for
the purpose described.
4. In an improved acetylene gas generator, the arrangement of the delivery
tubes d of the generators with progressive different depths of immersion substan-
tially as and for the purpose described. .
Dated this 5th day of May 1898.
J. H. SCHULKE,
Per W. H. Beck,
Agent, 115, Cannon Street, London, E.C.