IMPROVEMENTS IN THE TREATMENT OF FATTY AND OILY MATTERS
Year: 1855

page_text: LETTERS PATENT to Cyprien Marie Tessié du Motay, of Paris, for the
Invention of "IMPROVEMENTS IN THE TREATMENT OF FATTY AND OILY
MATTERS."
Sealed the 25th January 1856, and dated the 14th November 1855.
PROVISIONAL SPECIFICATION left by the said Cyprien Marie Tessié du
Motay at the Office of the Commissioners of Patents, with his Petition,
on the 14th November 1855.
I, CYPRIEN MARIE TESSIE DU MOTAY, of Paris, do hereby declare the nature
of the Invention for "IMPROVEMENTS IN THE TREATMENT OF FATTY AND OILY
MATTERS "to be as follows:-
The fatty
oily matters to be treated are first saponified with lime or other
base and then distilled. The base remains in the still, and pyrogenous fats
and oils distil over. The matters which distil over are then mixed with an
alkali or alkaline earth and re-distilled, when a liquid and colorless, or nearly
colorless, and acidless product is obtained.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Cyprien Marie Tessié du Motay in the Great Seal Patent
Office on the 13th May 1856.
5
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Cyprien Marie Tessié du Motay in the Great Seal Patent
Office on the 13th May 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CYPRIEN
MARIE TESSIE DU MOTAY, of Paris, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of November, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Cyprien Marie Tessié du Motay, Her special licence that I, the said
Cyprien Marie Tessié du Motay, my executors, administrators, and assigns, or
such others as I, the said Cyprien Marie Tessié du Motay, my executors,
administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein ex-
pressed, should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN THE TREATMENT OF FATTY
AND OILY MATTERS," upon the condition (amongst others) that I, the said
Cyprien Marie Tessié du Motay, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be. performed, and cause the same to-be filed
in the Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Cyprien Marie Tessié du Motay, do
hereby declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly. described and ascertained in
and by the following statement thereof, that is to say:-
The fatty or oily matters to be treated are first saponified with lime or other
base and then distilled. The base remains in the still, and pyrogenous fats
and oils distil over. The matters which distil over are then mixed with an
alkali or alkaline earth and re-distilled; when a liquid and colourless, or nearly
colourless, and acidless product is obtained.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the process which I
prefer to employ.
I take either oleic acid or oils, or vegetable or animal greases, or the greasy
residue arising from the currying of skins and hides, or the grease from
wool, &c., or the soapy waters which have already been employed for cleansing
silks or cloths, or for any other. purpose. For oleic acid, oils, vegetable or
animal greases, or waste greases, &c., I saponify with lime or any other
alkaline base, and thus obtain a soap. For soapy waters, I evaporate to
dryness, or decompose with a salt of an alkaline earth or of a metal, and so
obtain a soap having an alkaline earth or metal for its base. The soaps

page_text: obtained by either of these methods are distilled; the bases remain in the
retort; the fatty bodies in distilling change into pyrogenous bodies, and are
collected by condensation. This being known, I only describe it to assist in
the explanation of that which follows.
The pyrogenous products manufactured by the method which I have just
described containing solid bodies, are often acid, and are rapidly discolored
when exposed to the air. My object being to transform the solid bodies
contained in the crude pyrogenous products obtained from the first distillation
into pyrogenous oils to make the said pyrogenous oils entirely neutral, and to
deprive them of their coloring matter, I attain this end by the following
method:-I mix with the crude pyrogenous products from the first distillation
from two to fifteen per cent. of potash, soda, lime, or magnesia, with or
without water, using more alkali or alkaline earth and less water, as the
quantity of solid bodies, of acid bodies, or of coloring matters in these raw
products increases. I then subject them to a second distillation. I mix the
alkali and the pyrogenous oils either in or out of the retort used for
re-distilling.
The alkali employed reacts during the re-distillation on the solid matters
contained in the raw pyrogenous oils and changes them into liquid bodies,
saturates the acid parts contained in the raw oils, and takes up the coloring
matter which taints them.
Having thus described the nature of my Invention, and the manner of per-
forming the same, I would have it understood that I do not confine myself to
the exact details described; but what I claim is, the mixing pyrogenous fats
and oils with alkalies or alkaline earths and re-distilling them.
In witness whereof, I, the said Cyprien Marie Tessié du Motay, have
hereunto set my hand and seal, this Twelfth day of May, in the year
of our Lord One thousand eight hundred and fifty-six.
CYPRIEN MARIE TESSIE DU MOTAY.
0 Witness,
MOE SAUTTIER,
2, Rue Drouot.
(L.S.)