Improvements in or connected with Generators for Acetylene Gas.
Year: 1898

page_text: Date of Application, 24th June, 1898-Accepted, 8th Oct., 1898
COMPLETE SPECIFICATION.
Improvements in or connected with Generators for Acetylene Gas.
KURT ERDMANN ROSENTHAL, 31, Dorotheenstrasse, Berlin, Engineer, in the
Empire of Germany, 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 for improvements in or connected with generators for acetyleno
gas relates to an acetylene gas generator, composed of a number of carbide recep-
tacles, which is put into action in the usual manner by the sinking of the
gasometer and has for its object to provide improved means for controlling the
supply of carbide to the water receptacle and thus the generation of the gas.
According to this invention the gasometer on sinking is caused, with the assist-
ance of some known transmission gearing, to rotate a screw spindle on which
is traversed a female screw furnished with stops, which stops, by striking against
a suitably arranged lever, or the like, shift the closing slides arranged in the
several carbide holders one after the other and thus allow the necessary quantity
of carbide to fall gradually into the water in proportion to the quantity of gas
which it is desired to generate.
If the carbide receptacles are nearly exhausted, which can be discovered by
means of an indicator of any desired construction, the carbide previously accumu-
lated in the generator, at both sides of the carbide receptacles, is scooped or
shovelled into the several carbide receptacles, after the slides have been closed,
by means of a striking plate or implement acting like a shovel which is actuated
from without by means of any kind of gearing, as preferred, so that the generation
of gas can begin at once without the necessity of opening the apparatus again.
In the accompanying drawings Figs. 1 and 2 are sectional elevation and plan
respectively of a generator constructed according to this invention. The gene-
rator consists of the gas and water chamber a, above which is the impermeably
closed carbide chamber b. care the immersion pipes, partially immersed in
the water and separated from the water chamber by means of the slides d, the
upper portions of the pipes serving as receptacles for the carbide. In the
present case, ten such receptacles are provided. Below the pipes c are the dis-
tributing cones for the carbide, which falls on to the bars s. At the side is
arranged the water-supply pipe with injection nozzle p. serves for the
screwing on of a manometer and a safety valve; m is the pipe leading to the gas
conduit; r, represent a sieve with an aperture for carrying off the water and
the sediment; v are the short pipes for a water gauge glass. I is the striking
plate hereinbefore referred to which acts like a shovel, being set in motion by
a tooth gearing k. e is the screw spindle, on which is the female screw f, fur-
nished with stops which actuate the lever h.
The action of the generator is as follows;
The cover is opened and the carbide poured into the pipes c, the lower parts
of which are shut off by the slides d. The boxes of carbide used in commerce
contain as a rule 50 kilograms, and the measures of the pipes c are so chosen that

page_text: each pipe holds 2½ kilograms, so that the whole 10 pipes together contain
25 kilograms, the remaining 25 kilograms are accumulated at both sides of the
ten pipes. Thereupon, water is admitted into the water reservoir a through the
e with the hand, a slide d is shifted,
pipes op. Then, by turning the spindle
the carbide, in consequence of the gradual movement of the female screw on the
spindle e, falls by degrees, that is to say, not suddenly, over the distributing
cone into the water and on to the bars s. The pressure of the generated gas
now raises the gasometer bell. If the pressure of gas be relaxed, then, upon
the sinking of the gasometer bell, the female screw f strikes with its stops g
against the levers h, one after the other, according to the extent to which it is
desired that gas should be generated, (these levers being connected with the
slides ), and removes them from the pipes c, so that the carbide can fall just
as gradually into the water, as was the case before, and a gradual gas generating
action takes place. If the gasometer bell be raised, the female screw f remains
When the
still on the spindle e and so no more carbide can fall into the water.
whole of the slides are removed from the pipes c. and which can be suitably
shown by means of an indicating apparatus-the female screw f is screwed back
to the starting point, the slides d again introduced into the pipes c, and the 25
kilograms of carbide at hand are shovelled into the several carbide receptacles
by means of the striking plate 7 with the assistance of the gearing k, and the gas
generating process can be begun afresh.
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 put into action by means of the gasometer, the
characteristic feature of which is that, upon the sinking of the gasometer, a
female screw (f) arranged on a screw-spindle (e) and furnished with stops (g)
is set in motion, and by the striking of the stops y against suitably arranged
levers or the like, shifts the closing slides (d), arranged in the several carbide
receptacles (c), one after the other, and thereby allows the required quantity of
carbide to fall into the water by degrees, according to the quantity of it
gas
is desired to generate, whereby an entirely gradual gas generating action is
brought about.
2. In the generator characterised under Claim 1, the arrangement of the store
chamber (b) for the carbide and of the striking plate (1) operated from without
by suitable mechanism (k) above the several carbide receptacles (c) for the pur-
pose of re-filling the receptacles (c) after they have been emptied, without opening
the generator again.
1 13:011
af Tun 1908