Year: 1899

page_text: Date of Application, 23rd Feb., 1899
Complete Specification Left, 13th Nov., 1899-Accepted. 16th Dec.. 1899°
A communication from MAURICE DE LASSERVE, Gentleman, of Chateau d'Issac,
Issac (Dordogne), in the Republic of France.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention to be
as follows:
The present invention relates to an apparatus for the production of acetylene
gas and comprises a bell serving as a gasometer and two or more gas generators
so connected with the said gasometer as to ascend and descend with it.
The object of the invention is, to construct an apparatus for the production of
acetylene gas, in which the number of levers and taps characterizing other
so-called automatic gas-producing contrivances is avoided or reduced.
The vessels containing the carbide are preferably arranged diametrically oppo-
site to each other on the bell or gasometer, which therefore ascends and descends
with them as one body. They are all immersed together into the same water,
and as soon as the gasometer bell has descended sufficiently, owing to the con-
sumption of its gas for the water level to reach and wet the carbide charges the
bell becomes again filled with gas and rises.
The apparatus comprises a vessel into which the bell and the gas-generators
extend or are immersed the generators being, connected to the bell when the
operation is about to commence.
Each gas generator is composed of a bell or outer vessel provided in the
interior with a second vessel or cylinder perforated at its upper part and carrying
the carbide on trays or baskets or the like.
The gas produced in the gas generators passes through tubes provided with taps
and connecting joints into the gasometer, the tubes of which are also provided
with taps, and from the gas bell the gas passes through a tube to the distributing
pipes or place of use.
In order to start the apparatus, the bell is made to descend in the vessel partly
filled with water, the taps on the top of the bell being left open.
The carbide having been distributed on the trays or receptacles of the per-
forated cylinders, the latter is covered with their bells and fastened to them by
suitable means. The gas generators are then placed into the tank or outer vessel
leaving the taps on the top of the generator bells open, and closing them only
when the water from beneath has reached the carbide which position may be
indicated by a mark on the outside of the gas generators. The gas generators
are then connected up to the gas meter bell and the joints screwed together.
The gas generator taps are then gently and gradually opened to let some of
the air out and the carbide becoming attacked by the water the generation of
gas begins. The gas given off enters the main bell and causes it, together with
the gas generators to ascend; the carbide being, thereby, raised out of contact
-

page_text: with the water, and the generation of gas stops, until the consumption or drawing
off of gas from the main bell causes the whole again to descend and the process
to be repeated until the whole of the carbide is exhausted.
This apparatus.offers many advantages from a practical point of view, amongst
which the impossibility of an over-production, which it accompanied with so
much danger, is not the least. The gas pressure is always steady and can be
regulated at will; and the lighting which can be obtained by its use, is reliable
and very economical.
Toted this 22nd day of February 1899
Improvements in or relating to Acetylene Gas Generators..
社
A communication from MAURICE DE LASSERVE, Gentleman, of Chateau d'Issac,
Issac (Dordogne), in the Republic of France.
5. C.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent-Agent-do-hereby declare-the-nature_of_this_invention_and_m
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The present invention relates to an apparatus for the production of acetylene
gas and comprises a bell serving as a gasometer and two or more gas generators
so connected with the said gasometer as to ascend and descend with it.
The object of the invention is to construct an apparatus for the production of
acetylene gas, in which the number of levers and taps characterising other
so-called automatic gas-producing contrivances is avoided, or reduced.
The vessels containing the carbide are preferably arranged diametrically oppo-
site to each other on the bell or gasometer, which therefore ascends, and descends
with them as one body. They are all immersed together into the same water,
and as soon as the gasometer bell has descended sufficiently, owing to the con-
sumption of its gas for the water level to reach and wet the carbide charges, the
bell becomes again filled with gas and rises.
In the accompanying drawing:
Figure 1 is a vertical section through the centre of one form of the apparatus,
on the line A-B of Figure 2,
Figure 2 being a horizontal section on the line C-D (Figure 1).
The apparatus comprises a vessel a into which the bell b and the gas genera-
tors cc extend or are immersed, the generators being connected to the bell when
the operation is about to commence.
Each gas generator is composed of a bell or outer vessel c provided in the
interior with a second vessel or cylinder e perforated at its upper part, and carry-
ing the carbide on trays or baskets g or the like.
The gas produced in the gas generators c passes through tubes / provided with
taps and connecting joints j into the gasometer b, the tubes of which are also
provided with taps i, and from the gas bell b the gas passes through a tube k to
the distributing pipes or place of use.
In order to start the apparatus, the bell b is made to descend in the vessel a
partly filled with water, the taps i on the top of the bell being left open.
The carbide having been distributed on the trays or receptacles of the perforated
=

page_text: cylinders, the latter is covered with their bells c and fastened to them by any
suitable means. The gas generators are then placed into the tank or outer
vessel a leaving the taps d on the top of the generator bells open, and closing
them only when the water from beneath has reached the carbide, which position
may be indicated by a mark on the outside of the gas generators. The gas
generators are then connected up to the gas meter bell and the joints ; screwed
together.
The gas generator taps d are then gently and gradually opened to let some of
the air out and the carbide becoming attacked by the water the generation of
gas begins. The gas given off enters the main bell, and causes it, together with
the gas generators to ascend, the carbide being thereby, raised out of contact
with the water, and the generation of gas stops, until the consumption or
drawing off of gas from the main bell causes the whole again to descend and
the process to be repeated until the whole of the carbide is exhausted.
This apparatus offers many advantages from a practical point of view, amongst
which the impossibility of an overproduction, which is accompanied with so
much danger, is not the least. The gas pressure is always steady and can be
regulated at will, and the lighting which can be obtained by its use, is reliable
and very economical.
Having now particularly described and ascertained the nature of the said
invention, as communicated to me by my foreign correspondent, and in what
manner the same is to be performed, I declare that what I claim is:-
1. An acetylene gas generating apparatus comprising an outer tank and inner
bell and two or more carbide carriers directly connected to the bell in such a
manner, that the carbide is immersed in or withdrawn from the water in the
tank, through the descent or ascent of the bell without any intermediate devices,
substantially as described.
2. The complete acetylene gas generator substantially as described or illus-
trated in the accompanying drawings.
Dated this 13th day of November 1899.
BOULT, WADE & KILBURN,
Agents for the Applicant.