CERTAIN IMPROVEMENTS IN SOAP
Year: 1806

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HENRY LASSALLE, of the City of Bristol, Apothecary, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Fifth day of April, in the forty-
sixth year of His reign, did give and grant unto me, the said William Henry
Lassalle, my exors, adñiors, and assigns, His special licence, full power, sole
privilege and authority, that I, the said William Henry Lassalle, my exors,
adiiors, and assigns, during the term of fourteen years therein mentioned,
should and lawfully might make, exercise, and vend, within that part of
His said Majesty's Kingdom of Great Britain and Ireland, called England,
the Dominion of Wales, and Town of Berwick-upon-Tweed, and also within
all His said Majesty's Colonies and Plantations abroad, my Invention of
"CERTAIN IMPROVEMENTS IN SOAP;" in which said Letters Patent there is
contained a proviso, that if I, the said William Henry Lassalle, shall not
particularly describe and ascertain the nature of my said Invention, and in
what manner the same is to be performed, by an instrument in writing under
my hand and seal, and cause the same to be inrolled in His Majesty's Iligh
Court of Chancery within one calendar month next and immediately after the
date of the said recited Letters Patent, then the said Letters Patent, and all
liberties and advantages whatsoever thereby granted, shall utterly cease, deter-

page_text: mine, and become void, as in and by the said Letters Patent, relation being
thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Henry Lassalle, do hereby describe and ascertain the nature of my
said Invention, and the manner in which the same is to be performed, as
followeth, that is to say:-
I take any quantity of such aluminous earth as can be had or obtained, of
considerable purity in the native state, or otherwise I purify the same, if needful
or desirable, by the mechanical or chemical means or practices well known
and used in the arts; and I do grind, pulverize, levigate, or otherwise com-
minute the said carth, and very carefully mix the same with strong alkaline
ley, or soap lees, in sufficient quantity to render the whole imperfectly fluid;
and I boil the said mixture with constant stirring until the mass hath acquired
a smooth uniform appearance. In the meantime I prepare, in another boiler
a quantity of soap, hot, fluid, and nearly in the finished state, amounting to about
three times the weight of the aluminous earth used in the former preparation;
and in some cases I do separate the waste lees therefrom, and in other cases
I do permit the same to remain, according to the intended quality of the
composition I am about to make. And, lastly, I do pour the said hot mixture
or compound of earth and soap lees into the said quantity of hot, fluid, and
nearly finished soap, and unite the whole together by constant, stirring and
boiling, until the same hath obtained a consistence proper for conveying the
article into frames, to there be cooled for sale.
And, moreover, I do declare that the proportions of the said materials and
the manner of uniting the same together do admit of certain variations, which
are sufficiently evident to require no particular addition to the descriptions I
have here given; and that I do vary the said proportions and mixtures
according as it may be required to form a soap which shall be more or
less saline, or more earthy, more soft or more hard, even so as to be reduced
to powder, if needful, and the like.
In witness whereof I have hereunto set my hand and seal the Twenty-
ninth day of April, in the forty-sixth year of the reign of our Sovereign
Lord George the Third, by the grace of God of the United Kingdom
of Great Britain and Ireland King, Defender of the Faith, and in the
year of our Lord One thousand eight hundred and six.
WILLIAM HENRY (L.S.) LASSALLE.

page_text: AND BE IT REMEMBERED, that on the Twenty-ninth day of April, in
the year of our Lord One thousand eight hundred and six, the aforesaid
William Henry Lassalle came before our said Lord the King in His Chancery
and acknowledged the Specification aforesaid and all and every thing therein
5 contained and specified, in form above written. And also the Specification
aforesaid was stampt according to the tenor of the Statute made for that
purpose.