Improvements in Air Carburetting Apparatus.
Year: 1898

page_text: Date of Application, 19th Feb., 1898-Accepted, 9th Apr., 1898
Improvements in Air Carburetting Apparatus.
I, HEINRICH WOLPERT, of Charlottenburg, near Berlin, in the Empire of Ger-
many, Doctor, 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 aud
by the following statement:-
My invention relates to an improved apparatus for carburetting air and more
particularly to an apparatus in which the air is dried before its being subjected
to the carburetting process.
With this object my invention consists in so arranging the vessel containing
the carburetting fluid that it surrounds the receptacle for the drying medium.
It is well known that by passing air through a carburetting Huid, such for
instance as naphtha, petroleum, bitumen or the like, a certain cooling of the car-
buretting medium takes place, this cooling being caused by the evaporation of
the said carburetting medium.
It is also well known that by passing air through a drying medium such for
instance as chloride of calcium, a certain heating of this medium takes place;
which heating arises from the water-(steam and humidity) contained in the air
being absorbed by the drying medium. The heated medium then causes a relative
heating of the air afterwards passing through it.
Now my invention consists in compensating for the cooling of the carburetting
medium by the heating of the drying medium and of the heated air passing through
the carburetting fluid after having been heated during its passage through the
drying medium, and with this view I arrange the vessel containing the carburetting
fluid around the receptacle containing the drying medium.
In the accompanying drawing,-
Figure 1 is a vertical section of an apparatus arranged according to my
invention.
Figure 2 is a cross section partly in elevation.
a is a receptacle containing the drying medium, such for instance as chloride
of calcium; the air is introduced by the pipe b which extends down to near the
bottom of the receptacle. The air, after having passed the chloride of calcium
accumulates beneath the cover c of the receptacle and then enters the pipe d which
passes through the bottom e of the receptacle.
The bottom e and the side-walls of the latter are surrounded by the vessel f
containing the carburetting fluid. The air which may be introduced by pressure
through the pipe b, rises through the carburetting fluid and enters the pipe g by
which it may be guided directly to suitable burners or to a receptacle and after-
wards used for lighting purposes.
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:-
The combination with a receptacle containing a chemical medium for drying
air of another vessel surrounding the former and containing a medium for
carburetting air and of pipes by which the air is guided first through the drving

page_text: medium and then through the carburetting medium, substantially as herein before
described and shown in the accompanying drawing.
Dated this 18th day of February 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.