A Fish Extract or Essence, and in Utilizing the Residual or Waste Products Resulting from the Production of the same.
Year: 1893

page_text: Date of Application, 17th Aug., 1893
Complete Specification Left, 15th May, 1894-Accepted, 16th June, 1894
PROVISIONAL SPECIFICATION.
A Fish Extract or Essence, and in Utilizing the Residual or Waste
Products Resulting from the Production of the same.
We, WILLY KNEBEL, of No. 31 Artillerie Strasse, Hannover, in the Empire
of Germany Chemist, and FRIEDERICH ERNST SAHLFELD, of No. 3 Brühls
Strasse, Hannover aforesaid, Chemist, do hereby declare the nature of this
invention to be as follows :-
:―
This invention relates to an essence or fluid extract obtained from fish and also
to a method of treating the residual and waste products resulting from such process
in order to utilize the same as a chemical manure.
One object of this invention is to obtain from fish, a cheaply produced essence or
fluid extract, which can be used as a food, either alone, or mixed with relative
substances, such as meat extract, peptone or the like, whilst a further object is to
utilize the waste or discarded portions of the fish, such as the heads, skins, entrails
and the like, together with the residues remaining after the extraction of the
essential fluid, as a chemical manure.
In carrying out the production of a fluid food extract according to our invention,
the dead fish are first stripped of their outside skins and scales, heads, tails, fins,
entrails and such like uneatable parts. The remaining flesh, with the bones, and
also the eggs (if the same are good and sound) are then thoroughly cleansed by
washing.
This separation of the useful parts for the production of the "fluid," from the
waste parts (to be used as manure) is necessary, as also is the washing, from
the fact that the retaining of the skins and the like would render the extract
uneatable.
The prepared bodies, after being broken into small pieces and mixed with a
suitable quantity of water, are then placed in a suitable vessel for cooking. This
operation of cooking is conducted in a closed vessel, preferably provided with a
stirring apparatus, and into this vessel, steam is introduced, whereby a temperature
of 160 to 170 degrees Celsius is kept up until the whole of the soluble matter and
parts are taken out by the water.
When the solution is complete then all that is in the vessel is removed in any
suitable way into a reservoir, whose outlet pipe is provided with a sieve or similar
arrangement for keeping the undissolved parts within the said reservoir. The fluid
is now run off into a second which is placed underneath the first one.
The parts which remain in the first reservoir are, as hereinafter described
converted into manure, whilst after the removal by skimming or otherwise of the
fat in the second reservoir, there remains a clear brown liquid, which is the required
fish essence or fluid extract.
This fluid is the raw material from which food preparations are made, whilst the
parts remaining in the first reservoir, together with the waste parts removed from
the fish before cooking, are dried, ground and mixed with suitable components (such
as clay, lime or the like) which produces a good manure.
Thus our invention consists in the using of fish for the production of a fluid
extract or essence, which, after being mixed with relative substances, and boiled
till thick, can be used as a food, whilst the parts which are not dissolved and the
waste matters resulting from the production of the said food essence, are dried,
ground and mixed with suitable components such as lime, clay or the like, and
utilized as a chemical manure.
By the production of a fluid essence or food extract from fish as hereinbefore

page_text: described, the great fish riches, which have heretofore been, to a very considerable
extent, wasted, are utilized as a nourishing food for mankind, whilst at the same
time, by the conversion of the waste and residual products resulting from the
production of the said food essence into manure, the products of the land are
improved and increased.
Dated this 14th day of August 1893.
A Fish Extract or Essence, and in Utilizing the Residual or Waste
Products Resulting from the Production of the same.
We, WILLY KNEBEL, of No. 31 Artillerie Strasse, Hannover, in the Empire
of Germany, Chemist, and FRIEDERICH ERNST SAHLFELD, of No. 3 Brühls
Strasse, Hannover aforesaid, Chemist, do hereby declare the nature of this inven-
tion 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 essence or fluid extract obtained from fish and also
to a method of treating the residual and waste products resulting from such process
in order to utilize the same as a chemical manure.
One object of this invention is to obtain from fish, a cheaply produced essence or
fluid extract which can be used as a food, either alone, or mixed with relative
substances, such as meat extract, peptone or the like, whilst a further object is to
utilize the waste or discarded portions of the fish, such as the heads, skins, entrails
and the like, together with the residues remaining after the extraction of the
essential fluid, as a chemical manure.
In carrying out the production of a fluid food extract according to our invention,
the dead fish are first stripped of their outside skins and scales, heads, tails, fins,
entrails and such like uneatable parts. The remaining flesh with the bones, and
also the eggs (if the same are good and sound) are then thoroughly cleansed by
washing.
This separation of the useful parts for the production of the "fluid," from the
waste parts (to be used as manure) is necessary, as also is the washing, from
the fact that the retaining of the skins and the like would render the extract
uneatable.
The prepared bodies, after being broken into small pieces and mixed with a
suitable quantity of water, are then placed in a suitable vessel for cooking. This
operation of cooking is conducted in a closed vessel, preferably provided with a
stirring apparatus, and into this vessel, steam is introduced, whereby any suitable
high temperature such as from 160 to 170 degrees Celsius is kept up until the
whole of the soluble matter and parts are taken out by the water.
When the solution is complete then all that is in the vessel is removed in any
suitable way into a reservoir, whose outlet pipe is provided with a sieve or similar
arrangement for keeping the undissolved parts within the said reservoir. The fluid
is now run off into a second reservoir which is placed underneath the first one.
The parts which remain in the first reservoir are, as hereinafter described,
converted into manure, whilst after the removal by skimming or otherwise of the
fat in the second reservoir, there remains a clear brown liquid, which is the required
fish essence or alimentary fluid extract.
This fluid is the raw material from which food preparations are made, whilst the
parts remaining in the first reservoir, together with the waste parts removed from

page_text: the fish before cooking, are dried, ground and mixed with suitable components
(such as clay, lime and the like) which produces a good manure.
Thus our invention consists in the using of fish for the production of an alimentary
fluid extract or essence, which, either alone or after being mixed with relative
substances, and boiled till thick, can be used as a food, whilst the parts which are
not dissolved and the waste matters resulting from the production of the said food
essence, are dried, ground and mixed with suitable components such as lime, clay or
the like, and utilized as a chemical manure.
By the production of a fluid essence or food extract from fish as hereinbefore
described, the great fish riches, which have heretofore been, to a very considerable
extent, wasted, are utilized as a nourishing food for mankind, whilst at the same
time, by the conversion of the waste and residual products resulting from the
production of the said food essence into manure, the products of the land are
improved and increased.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
First. An alimentary fluid extract or a meat fluid extract or essence obtained
from fish, substantially as described and set forth.
Secondly. An alimentary fluid extract obtained from fish by the process or
processes and means as herein described and set forth.
Thirdly. Making manure from the residual or waste products resulting from the
manufacture of the alimentary extract, referred to in the preceding claims,
substantially as described and set forth.
Dated this 12th day of May 1894.
WILLY KNEBEL,
FRIEDERICH ERNST SAHLFELD,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicants.