IMPROVEMENTS IN THE TREATMENT OF A SUBSTANCE PRODUCED IN SOAP MAKING, AND ITS APPLICATION TO USEFUL PURPOSES
Year: 1850

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME; I, ALFRED
GEORGE ANDERSON, of Great Suffolk Street, Southwark, in the County of
Surrey, Soap Manufacturer, send greeting.
WHEREAS Her present most Excellent Queen Victoria, by Her Royal
Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twentieth day of April,
One thousand eight hundred and fifty, in the thirteenth year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said Alfred
George Anderson, my exors, adñors, and assigns, Her especial licence; full
power, sole privilege and authority, that I, the said Alfred George Anderson,
my exors, adiňors, and assigns, or such others as I, the said Alfred George
Anderson, 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, my Invention of
"IMPROVEMENTS IN THE TREATMENT OF A SUBSTANCE PRODUCED IN SOAP MAKING,
AND ITS APPLICATION TO USEFUL PURPOSES;" in which said Letters Patent is con-
tained a proviso, that I, the said Alfred George Anderson, shall cause a par-
ticular description of 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, to be inrolled in Her said Majesty's "High Court of Chancery
within six calendar months next and immediately after the date of the said.

page_text: in part recited 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
Alfred George Anderson, do hereby declare that the nature of my said Inven-
tion, and the manner in which the same is to be performed, are fully described
and ascertained in and by the following statement thereof, that is to say:-
In preparing alkaline ley for soap making, there is produced a substance
called and well known as soaper's waste ashes, or soaper's waste, consisting
principally of carbonate of lime, but containing generally a small quantity of
alkali and a considerable portion of quicklime, the latter arising from the
excess of lime used by the soap maker in preparing his ley. This soaper's
waste ashes, or soaper's waste, has hitherto been not only useless to the soap
maker, but in many cases a source of expense to him, by his having to pay for
its removal.
Now, my Invention consists in the preparation from this substance of neutral
carbonate of lime, applicable to most purposes for which carbonate of lime is
used, and particularly to the manufacture of the substance called "whiting,"
or "whitening," in commerce. My mode of operating is to introduce a
suitable quantity of soaper's waste ashes, or soaper's waste, into a proper
cistern with water till the cistern is nearly full. I then stir up the contents of
the cistern till the fine portion of the soaper's waste used is well suspended in
the water, when, after suffering it to stand a few minutes, till the grosser
particles have subsided, the milky liquor is run off into another cistern, where
it settles. Now, this sediment consists principally of carbonate of lime, but it
contains a good deal of quicklime, and also a little alkali, which I remove by
washing it repeatedly with cold water until the water comes off tasteless, after
which the pure carbonate of lime remaining may be collected and dried in the
mode practised by manufacturers of whiting or whitening in the old way, and
it then forms very pure whiting or whitening of commerce. This wasbing out
of the quicklime requires, however, a large quantity of water, and is therefore
a very troublesome operation on this account. I prefer to add to the deposit,
obtained in the mode, described a clear solution of carbonated alkali in water,
in quantity more than sufficient to at once convert the whole of the quicklime
contained in the deposit into carbonate of lime, after which the excess of
alkaline solution is easily removed by washing, and the whole mass is now
carbonate of lime, applicable to most purposes for which carbonate of lime is
used, and especially to the manufacture of the "whiting," or "whitening," of
commerce, as already described. As the washings, when this latter process is
followed, contain alkali and carbonated alkali in solution, they may be used.

page_text: instead of water in the preparation of fresh ley, as is well understood by soap
makers, or applied to any other purpose for which an alkaline solution of such
a nature may be required.
Now, I claim the application of soaper's waste ashes, or soaper's waste, to
the manufacture of pure carbonate of lime, and of the substance called in com-
merce "whiting," or "whitening." And also I claim the application of
soaper's waste ashes, or soaper's waste, to the manufacture of pure carbonate
of lime and the substance called in commerce "whiting," or "whitening," in.
the manner described; but I do not confine myself to the exact mode of
manipulating I have detailed, so long as the general character of my Inven-
tion is retained, which is to make from soaper's waste ashes, or soaper's waste,
neutral carbonate of lime, and the "whiting," or "whitening," of commerce.
In witness whereof, I, the said Alfred George Anderson, have hereunto
set my hand and seal, this Nineteenth day of October, in the year of
our Lord One thousand eight hundred and fifty.