IMPROVEMENTS IN PREPARING RAPE-SEED OIL
Year: 1853

page_text: LETTERS PATENT to James Warburton, of Addingham, in the
County of York, Spinner, for the Invention of "IMPROVEMENTS
IN PREPARING RAPE-SEED OIL."-A communication.
PROVISIONAL SPECIFICATION left by the said James Warburton
at the Office of the Commissioners of Patents, with his Petition,
on the 21st October 1853.
I, JAMES WARBURTON, of Addingham, in the County of York, Spinner,
5 do hereby declare the nature of the Invention for "IMPROVEMENTS IN
PREPARING RAPE-SEED OIL" to be as follows:-
In a suitable vessel containing fifty-two parts of alkali (caustic soda)
of a specific gravity of 1010 are to be put one hundred lbs. of refined
rape-seed oil; these are to be stirred with a wooden ladle till well mixed.
The mixture is then to be allowed to stand twenty-four hours undis-
turbed in a cold place; the mixture is then to be warmed slowly and
well stirred up again, after which the liquor is to be left another twenty-
four hours, in which time all the oil will have separated itself, but should

page_text: such not be entirely the case, it can be effected by putting in a small
quantity of spirits of wire. The oil thus taken off from the liquor is to
be well washed with hot water till the pure oil is obtained without taste
or colour. The soap settled in the vessel can be used very profitably
for washing purposes
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Warburton in the Great Seal Paterit
Office on the 18th- April -1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, 1,
James Warburton, of Addingham, in the County of York, Spinner,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of October, in the
year of our Lord One thousand ciglit hundred and fifty-three, in the
seventeenth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said James Warburton, Her
special licence that I, the said James Warburton, my executors, admi-
nistrators, and assigns, or such others as I, the said James Warburton,
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 expressed, 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 PREPARING RAPE-SEED OIL," communicated to me
from abroad, upon the condition (amongst others) that I, the said James
Warburton, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the said In-
yention, 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 immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said James Warburton, do hereby
declare the nature of the said Invention, and in what manner the

page_text: same is to be performed, to be particularly described and ascertained in
and by the following statement thereof (that is to say):
In a suitable vessel containing fifty-two parts of alkali (caustic soda)
of a specific gravity of 1.010 are to be put one hundred lbs. of
refined rape-seed oil; these are to be stirred with a wooden ladle till
well mixed. The mixture is then to be allowed to stand twenty-four
hours undisturbed in a cold place; the mixture is then to be warmed
slowly and well stirred up again, after which the liquor is to be left
another twenty-four hours, in which time all the oil will have separated
itself, but should such not be entirely the case it can be effected by
putting in a small quantity of spirits of wine. The oil thus taken off
from the liquor is to be well washed with hot water till the pure oil is
obtained without taste or colour, and, if desired, may be filtered through
any suitable filter, as oils have heretofore been treated. The s soap settled
in the vessel can be used very profitably for washing purposes.
In witness whereof, I, the said James Warburton, have hereunto
set my hand and seal, this Fifteenth day of April, in the year
of our Lord One thousand eight hundred and fifty-four.
0 Witness,
C. F. YESSON,
Low Mill, Addingham.
JAMES WARBURTON. (L.S.)