Improvements in the Method of Producing Fish Oil.
Year: 1899

page_text: Date of Application, 2nd Mar., 1899-Accepted, 8th Apr., 1899
COMPLETE SPECIFICATION.
Improvements in the Method of Producing Fish Oil.
I, ERNST OTTO GUSTAV SCHUSEIL, of 7, Marktstrasse, Bremerhaven, in the
Empire of Germany, Manufacturer, 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 relates to improvements in the method of producing fish oil and
has for its object to treat fish liver previously wrapped in bags, wire gauze or
the like, by heat, thereby extracting the fish oil, the latter exuding from the said
liver and trickling off directly into the reservoirs in order that it may be pro-
tected from the influence of the high temperature or from fermentation.
In carrying my invention into effect, I provide an apparatus as shown in the
annexed drawings in which Fig. 1 is a vertical section and Fig. 2 a horizontal
section.
A is a container of suitable material having hollow walls B into which steam
is supplied by means of an inlet E, there being also an exhaust pipe G for dis-
charging the steam or condensed water. The top part of the container is pro-
vided with a close-fitting and removable cover C. An outlet F for the exuding
oil is arranged at the bottom of the same.
The improved method of producing fish oil is as follows:
After the fish liver, wrapped up in a sack D or wire gauze or the like, is placed
in the container and the cover replaced, the hollow walls of the apparatus are
supplied with steam, thereby heating the container A and causing the
fish liver to part with its oil. The pure fish cil will soon trickle through the sack
or the wire gauze D and find its way through the outlet F underneath which
the reservoir may be placed.
Experience shows that by this improved method the yield is much more copious
than is the case with the methods hitherto employed. Moreover, the product
being a pure one, it will not be saponified by water; the liver is, on the contrary,
thoroughly desiccated while the oil is obtained in a perfectly natural state,
water-white" in colour and unspoiled or darkened by high temperature, fer-
mentation or the like. The fish oil remains in a thinly fluid state and it will
stand even the lowest temperature without giving rise to the precipations which
so often occur in winter time, in oils produced by the usual methods.
Moreover, the taste of the fish oil produced by the improved method is pure
and delicious and less liable to become rancid than when produced in the usual
way.
The fish oil produced by the improved method is also endowed with the highest
curative qualities.
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. The improved method of producing fish oil substantially as set forth.
2 The annaratus for carrying into effect the improved method of producing

page_text: fish oil, constisting of a suitable container the hollow walls of which are heated
by steam, thereby causing the fish liver previously wrapped in a sack or wire
gauze or the like to part with its oil, and means for the direct storing of the pure
oil trickling out of the container, substantially as set forth and illustrated in the
annexed drawings.