IMPROVEMENTS IN TREATING, REFINING, AND PURIFYING OILS AND OTHER SIMILAR SUBSTANCES
Year: 1842

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MOSES
POOLE, of Lincoln's Inn, in the County of Middlesex, Gentleman, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-first day of February, in the fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Moses Poole, Her especial licence, full power, sole privilege and
authority, that I, the said Moses Poole, my exors, admors, and assigns, or
such others as I, the said Moses Poole, my exors, admors, or assigns, should
at any time agree with, and no others, from time to time and at all times
during the term of years therein expressed, should and lawfully might make,
use, exercise, and vend, within England, Wales, and the Town of Berwick-
upon-Tweed, the Invention of "IMPROVEMENTS IN TREATING, REFINING, AND
PURIFYING OILS AND OTHER SIMILAR SUBSTANCES," communicated to me by a
certain Foreigner residing abroad; in which said Letters Patent is contained
a proviso that I, the said Moses Poole, shall cause a particular description
of the nature of the said Invention, and in what manner the same is to be
performed, to be inrolled in Her Majesty's High Court of Chancery within
six calendar months next and immediately after the date of the said in part
recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Moses Poole, do hereby declare- the nature of the said Invention, and the
manner in which the same is to be performed, are fully described and ascer-
tained in and by the following statement thereof (that is to say):-
The Invention consists of a mode of treating oils and other similar substances
to purify and refine them. I would first observe, that the place wherein the oils
are to be operated upon should not be at a temperature of less than seventy
degrees to eighty degrees of Fahrenheit, as it is found much more beneficial
with oils that are congealed, and will be found to facilitate and accelerate the
purification of them. The oil to be operated upon (I generally prefer to
operate upon about fifty gallons at one time) is to be allowed to remain
some time in one place until the congealed parts have become melted, and the
grosser parts deposited, which is to be separated. Into the oil is then to be
placed an alkaline solution of soda or potash, but I prefer the potash. This
solution must be as pure as possible. The proportion of this solution should
be from four to eight per cent., according to the state or quality of the oil;
the whole is then to be well agitated and stirred up together for about an hour
by any of the well-known means. This' solution: may, be rendered caustic by
the addition of a certain quantity of lime. The oil, after having been thus
beaten, is then to be drawn off into another vessel and allowed to remain for from
twenty-four to thirty-six hours, 'when there will appear on, the surface a scum,
which is to be removed, and the oil will be in a fit state for the next process.
In some instances the oil will be found so very 'impure, that it will be necessary
to subject' it a second time to this preparatory process for the purpose of
purifying it. When it is thoroughly purified it is again to be well stirred up or
agitated, adding to the same. a solution of. about. ten per cent. of water, having
in it about four or five per cent. of "concentrated sulphuric acid; this solution
is to be heated to about one hundred and ten to one hundred and twenty
degrees, and the whole to be well stirred up. for about a quarter of an hour.
it is then to be allowed to rest for about forty-eight hours, when it will be in a
fit state to be filtered or refined in order to give to it a transparency and
clearness; this may be effected by any of the well-known means, but the mode
that I prefer to use is that of filtering by pressure, for which a Patent was granted
to Mr. *
Cronier on the Fourth December, One thousand eight hundred
and thirty-nine. When filtered the oil will be in a fit state for commerce. I
-would again' remark, that in all these operations the temperature of the place
wherein they are performed should not be less than seventy to eighty degrees:

page_text: Having thus described the nature of the Invention, and the manner of
performing the same, I would have it understood that what I claim as the
Invention communicated to me is, the mode of purifying animal and vege-
table oils, and such like substances, by subjecting them to alkaline and acid
solutions, as herein described.
In witness whereof, I, the said Moses Poole, have hereunto set my
hand and seal, this Twentieth day of August, in the year of our Lord