A CERTAIN IMPROVEMENT IN THE MANUFACTURE OF SOAP FOR THE PURPOSE OF WASHING WITH SEA WATER, WITH HARD WATER, AND OTHER WATER
Year: 1810

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDMUND
GRIFFITH, of the City of Bristol, Esquire, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Eighth day of October, in the fiftieth year of His reign, and in
the year of our Lord One thousand eight hundred and ten, did, for Himself,
His heirs and successors, give and grant unto me, the said Edmund Griffith,
His special licence that I, the said Edmund Griffith, my executors, adminis-
trators, and assigns, or such others as I, the said Edmund Griffith, my
executors, administrators, 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, my Invention of
"A CERTAIN IMPROVEMENT IN THE MANUFACTURE OF SOAP FOR THE PURPOSE OF
WASHING WITH SEA WATER, WITH HARD WATER, AND OTHER WATER;" in which
said Letters Patent there is contained a proviso, obliging me, the said Edmund
Griffith, by an instrument in writing under my hand and seal, particularly to
describe and ascertain the nature of my said Invention, and in what manner
the same is to be performed, and to cause the same to be inrolled in His
Majesty's High Court of Chancery within six calendar months next and

page_text: immediately after the date of the said Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Edmund Griffith, do hereby particularly describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, as
follows, that is to say:-1
The nature of my said Invention is the admixture of phosphoric acid with
soap for the purpose of washing with sea water, with hard water, and with
other water, and the manner of performing the same is to proceed by the usual
methods to convert any of the saponaceous materials into soap, and at any
convenient time during the process to add a competent quantity of the
phosphoric acid in any form or proportion (either alone or in combination with
either of the alcalis) that may be best suited to the object proposed, having
regard to the cheapness or the elegance of the article to be produced. With a
view to cheapness, I have found that the phosphoric acid of urine, applied
without any minute chemical. decomposition, a cheap and easy method of
procuring the acid, and for this purpose the urine may be evaporated to about
one-fourth of its original quantity, and the remainder be added to the materials
as before mentioned, in the proportion of about ten gallons to every ton of
finished soap (state this as the lowest proportion), mixing the same equally
through the contents of the boiler; or for the convenienc of carriage it may be
evaporated to an extract and again diluted, in which case an hundred, gallons
of urine will usually produce from eight to twelve pounds of extract. If it be
desirous to avoid the urinous smell which will be communicated to the soap
by the cheap process before mentioned, it may be discharged by the method or
methods well known to chemists;; or competent proportions of phosphoric
acid from other materials, or of the; combinations of phosphoric acid, and
particularly of the phosphats of potash and of soda, may be used (being first
diluted), instead of the, materials above mentioned. The differences in the
proportions of the constituent parts of urine and in the strength of the
phosphoric acid to be used, and also in the quantities of the water, are so very
great, and the objects to be attained are so various, that no certain quantities
can be stated, but they may be easily apportioned (beginning with the smallest
proportions) and adapted to the uses intended.
In witness whereof, I, the said Edmund Griffith, have hereunto set my
hand and seal, the Fourth day of April, One thousand eight hundred
EDMUND GRIFFITH. (L.S.)

page_text: AND BE IT REMEMBERED, that on the same Fourth day of April,
in the year above mentioned, the aforesaid Edmund Griffith came before
our Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained, in form above written.
And also the Specification aforesaid was stamped according to the tenor of the
Statute in that case made and provided.
Inrolled the Fifth day of April, in the year above written.