AN IMPROVED PROCESS OF EXTRACTING VEGETABLE OILS, ESSENTIAL OR VOLATILE OIS, FATTY MATTERS, ESSENCES, AND PERFUMES FROM SUBSTANCES OF VEGETABLE OR ANIMAL ORIGIN
Year: 1879

page_text: LETTERS PATENT to Albert Sauvée, of 22, Parliament Street, Westminster,
Civil Engineer, for the Invention of "AN IMPROVED PROCESS OF EXTRACTING
VEGETABLE OILS, ESSENTIAL OR VOLATILE OIS, FATTY MATTERS, ESSENCES,
AND PERFUMES FROM SUBSTANCES OF VEGETABLE OR ANIMAL ORIGIN."
Sealed the 30th April 1880, and dated the 24th November 1879.
PROVISIONAL SPECIFICATION left by the said Albert Sauvée at the Office
of the Commissioners of Patents on the 24th November 1879.
ALBERT SAUVÉE, of 22, Parliament Street, in the City of Westminster, Civil
Engineer. "AN IMPROVED PROCESS OF EXTRACTING VEGETABLE OILS, ESSENTIAL
OR VOLATILE OILS, FATTY MATTERS, ESSENCES, AND PERFUMES FROM SUBSTANCES
OF VEGETABLE OR ANIMAL ORIGIN."
This Invention consists in the use or employment of chloride of methyl for the
extraction of vegetable oils, essential or volatile oils, fatty matters, essences, and
perfumes from substances of vegetable or animal origin.
The chloride of methyl possesses to a superlative degree the power of dissolving
vegetable oils, essential or volatile oils, fatty matters, and also essences and per-
fumes of vegetable or animal origin, and as it boils at a temperature of 18 degrees
Fahrenheit below zero (- 18° Fah.) it is easy afterwards to separate the chloride
of methyl from the substances in solution.
The mode of operating is as follows:-The substances to be submitted to the
extracting process are placed in perforated vessels or wire baskets and plunged into
chloride of methyl which is kept liquid under pressure. As soon as the dissolution
of the vegetable oils, essential or volatile oils, fatty matters, essences, or perfumes
is effected the chloride of methyl is evaporated, and to accelerate the evaporation,
which is already greatly facilitated by the low boiling point of the chloride of
methyl, the vessel containing it is put in communication with a pump which draws
off the vapour on one side of the piston, and compresses it into liquid again on the
717

page_text: other side. There is therefore no apparent loss of chloride of methyl, which can be
used over and over again. When the totality of the chloride of methyl has been
evaporated, there remains at the bottom of the outer vessel the vegetable oils,
essential or volatile oils, fatty matters, essences, or perfumes, according to the sub-
stance operated upon.
Amongst the numerous purposes or uses to which this Invention may be applied
are -The extraction of the oil which still remains in oil cakes after they have been
pressed; the recovery of oil from the waste rags or other materials used in
engineers' shops or factories, and also the recovery of oil from metal filings or
turnings; the extraction of the fatty matters requisite for the manufacture of
stearic or other candles, soaps, &c.; the removal of grease stains from cloth or other
textile fabrics; the extraction of bees wax from honey combs; the extraction of
the essential oils, essences, and perfumes contained in flowers, fruits, wood, or any
other vegetable or animal substance.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Albert Sauvée in the Great Seal Patent Office on the 22nd May
1880.
ALBERT SAUVÉE, of 22, Parliament Street, in the City of Westminster, Civil
Engineer. "AN IMPROVED PROCESS OF EXTRACTING VEGETABLE OILS, ESSENTIAL
OR VOLATILE OILS, FATTY MATTERS, ESSENCES, AND PERFUMES FROM SUBSTANCES
OF VEGETABLE OR ANIMAL ORIGIN."
This Invention consists in the use or employment of chloride of methyl for the
extraction of vegetable oils, essential or volatile oils, fatty matters, essences, and
perfumes from substances of vegetable or animal origin.
The chloride of methyl possesses to a superlative degree the power of dissolving
vegetable oils, essential or volatile oils, fatty matters, and also essences and per-
fumes of vegetable or animal origin, and as it boils at a temperature of 18 degrees
Fahrenheit below zero (- 18° Fah.) it is easy afterwards to separate the chloride
of methyl from the substances in solution.
The mode of operating is as follows:-The substances to be submitted to the
extracting process are placed in perforated vessels or wire baskets and plunged into
chloride of methyl, which is kept liquid under pressure. As soon as the dissolution
of the vegetable oils, essential or volatile oils, fatty matters, essences, or perfumes
is effected the chloride of methyl is evaporated, and to accelerate the evaporation,
which is already greatly facilitated by the low boiling point of the chloride of
methyl, the vessel containing it is put in communication with a pump which draws
off the vapour on one side of the piston, and compresses it into liquid again on the
other side. There is therefore no apparent loss of chloride of methyl, which can be
used over and over again. When the totality of the chloride of methyl has been
evaporated, there remains at the bottom of the outer vessel the vegetable oils,
essential or volatile oils, fatty matters, essences, or perfumes, according to the sub-
stance operated upon.
Amongst the numerous purposes or uses to which this Invention may be applied
are: The extraction of the oil which still remains in oil cakes after they have
been pressed; the recovery of oil from the waste, rags, or other materials used in
engineers' shops or factories, and also the recovery of oil from metal filings or
turnings; the extraction of the fatty matters requisite for the manufacture of stearic
or other candles, soaps, etc.; the removal of grease stains from cloth or other textile
fabrics; the extraction of bees-wax from honey combs; the extraction of the
essential oils, essences, and perfumes contained in flowers, fruits, wood, or any other
vegetable or animal substance.
Another special use to which my Invention may be applied is for the extraction
of the fatty matter of printing inks from blankets employed in printing machines,
thus enabling the blankets to be used over and over again until they are thoroughly
worn out.
Having now described the nature of my said Invention, and the manner of
carrying the same into effect, I wish it to be understood that what I claim is, the
use or employment of chloride of methyl for the extraction of vegetable oils,
essential or volatile oils, fatty matters, essences, and perfumes from substances of
vegetable or animal origin, substantially as herein described.
In witness whereof, I, the said Albert Sauvée, have hereunto set my hand
and seal, this Twenty second day of May, in the year of our Lord 1880.