IMPROVEMENTS IN THE MEANS OF AND APPARATUS FOR EXTRACTING OLEAGINOUS MATTERS FROM BONES AND OTHER GREASY SUBSTANCES
Year: 1884

page_text: We LEBRECHT STEINMÜLLER and CARL STEINMÜLLER both of Gummersbach in
the German Empire, Engineers, do hereby declare the nature of our Invention for
"IMPROVEMENTS IN THE MEANS OF AND APPARATUS FOR EXTRACTING OLEAGINOUS
MATTERS FROM BONES AND OTHER GREASY SUBSTANCES" and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement:-
:
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This Invention relates to "Improvements in the Means of and Apparatus for.
Extracting Oleaginous Matters from Bones and other Greasy Substances" and has
for its object the construction of an apparatus for extracting fatty and greasy
matters from bones or other suitable substances. By our Invention the benzine or
other vapours required for the extraction of fatty matters are forced from the top
of the apparatus, over the substances to be treated, and pass to the bottom carrying
with them the fat extracted. The benzine or other vapours do not strike against
the descending fat, as is the case with all existing apparatus, but travel down with
it, and therefore the process is a more complete and accelerated one.-The
construction of the apparatus is exceedingly simple, whilst the waste of the benzine
or extracting medium is reduced to a minimum, on account of the few pipes and
valves and the entire process is consequently both economical and cheap.
•
We accomplish our object in the following manner, which we will now proceed
to describe more particularly by aid of the accompanying Drawings in which
Figure 1 represents a sectional elevation of the apparatus, and Figure 2 an enlarged.
section through line a. b. Figure 1.
"
The apparatus consists of a tank P containing three chambers A B and C
connected to one another. A is divided from B by a perforated plate D, and A.is.
also provided with an opening E for charging it with the substances to be treated,.
and which can be hermetically sealed. B is connected with C by a pipe provided.
with a stop valve F.
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The tank P is fitted with an aperture Z at the base of chamber A, for removing
the substances after treatment, and also at the base of C with an outlet and valve O
for drawing off-the dissolved fatty extract therefrom. From C a pipe with.
valve Gleads to the condenser K and into tubes N N Figures 1 and 2. Alongside
of tank P we arrange the evaporating apparatus T which is filled with benzine or
other fat extracting medium, and heated with steam, and is connected by a pipe
and valve H to the upper part of the tank P... Cold water is introduced into the
condenser by pipes S suitably connected with pipes and stop valves QQQ to
pipe J which pipe J is perforated to form the condensing spray. The overflow
water from the condensing chamber runs by overflow pipe L into the reservoir M

page_text: below, which is connected by pipe and valve W to T and is suitably fitted for the
purposes herein-after described.
The benzine contained in T is heated by steam, and the benzine vapours so
generated enter the chamber A and play on the substances to be treated from top
to bottom, carrying the dissolved fatty matters freely with them into B from
whence the benzine vapours the fat and products of condensation pass down
through pipe and valve F into G. Here the fatty matters remain, and can be
drawn off at will by outlet and valve O, whilst the benzine vapours rise up by pipe
and stop cock G into the cooling pipes N Figures 1 and 2 within the condensing
chamber K, K is supplied with water by pipes S and Q and the condensed benzine
or other vapours, together with the water flow down the overflow pipe L into the
reservoir M from whence the water flows off continuously by pipe V whilst the
benzine accumulates on the surface, and can be returned to T for further use by
pipe and valve W. By this method no benzine vapour is lost, which by all other
apparatus fitted with worms, coils and double tanks, is unavoidable. This
condensation above described is likewise extremely effective. Glass plates or
gauges R R are provided on T and M whereby the levels of the water and benzine
may be ascertained.
After all the fat is extracted, the three valves U F and G are opened, and steam
is injected into A by pipe and valve U through B and C and into K by which
means any of the benzine vapours which may have remained in the three
chambers ABC are evaporated and carried into the reservoir. The bones or
other treated substances are then withdrawn through Z and the apparatus can be
again charged and the operation recommenced. In this manner the benzine used
in the process is kept in undisturbed circulation from T through A to B, thence
through F to C then from C through G to K and finally back to T from M.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed. We declare that
what we claim is :-
Firstly: An apparatus for extracting oleaginous matters, from substances
containing the same, in which the vapours of the fat extracting medium, enter on
top of the substances to be treated in chamber A, pass down into chamber B
descending from thence into chamber C, thus passing from top to bottom, along
with the extracted oleaginous matters substantially as and for the purposes
described and illustrated.
Secondly: The evaporation of the fat extracting medium in an evaporating
apparatus, which is separate from the extraction chambers substantially as
described.
Thirdly: The condensation of the vapours of the fat extracting medium by
cooling the vapours from the extraction chambers in tubes N N, or other receptacles.
previous to bringing them in contact with fresh water, and their consequent
economical preservation for further use, substantially as described.
Fourthly: The combination of the three chambers ABC with the evaporation
apparatus T and the condenser K, and the collecting, reservoir M: and the connection
of the latter with the evaporator T, in order to cause an undisturbed and continuous
circulation of the fat extracting medium, substantially as herein before described
set forth and illustrated by the accompanying Drawings.
Dated this Eighth day of August 1884.
WAUGH & CHAPMAN,
Agents for Applicant.