IMPROVEMENTS IN TREATING THE WASTE WASH-WATERS OF WOOLLEN AND OTHER MILLS
Year: 1854

page_text: LETTERS PATENT to William Charles Theodore Schaeffer, of 11, Stanhope
Terrace, Hyde Park Gardens, Analytical Chemist, for the Invention of
"IMPROVEMENTS IN TREATING THE WASTE WASH-WATERS OF WOOLLEN AND
OTHER MILLS"
PROVISIONAL SPECIFICATION left by the said William Charles Theodore
Schaeffer at the Office of the Commissioners of Patents, with his
Petition, on the 3rd November 1854.
I, WILLIAM CHARLES THEODORE SCHAEFFER, of 11, Stanhope Terrace, Hyde
Park Gardens, Analytical Chemist, do hereby declare the nature of the Inven-
tion for "IMPROVEMENTS IN TREATING THE WASTE WASH-WATERS OF WOOLLEN AND
OTHER MILLS" to be as follows:-
The object of this Invention is to obtain the fatty and oily matters con-
tained in wash-waters of woollen and other mills, and consists of treating such
wash-waters with vinegar or acetic acid, tartar, and urine, these materials
having been introduced into the wash-waters when in a suitable vessel. The
waters are to be well agitated, and then allowed to settle; the clear water is to
be drawn off, and the oily or greasy matters are to be separated from the
precipitated mass by heat and pressure.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Charles Theodore Schaeffer in the Great Seal Patent
Office on the 3rd May 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CHARLES THEODORE SCHAEFFER, of 11, Stanhope Terrace, Hyde Park Gardens,
Analytical Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of November, in the year of our Lord'
One thousand eight hundred and fifty-four, in the eighteenth year of Her
reign, did, for Herself, Her heirs and, successors, give and grant unto me,
the said William Charles Theodore Schaeffer, Her special licence that I, the
said William Charles Theodore Schaeffer, my executors, administrators, and
assigns, or such others as I, the said William Charles Theodore Schaeffer,
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 TREATING
THE WASTE WASH-WATERS OF WOOLLEN AND OTHER MILLS," upon the condition
(amongst others) that I, the said William Charles Theodore Schaeffer, by
an instrument in writing under my hand and seal, should particularly
describe and ascertain the nature of the said Invention, 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 William Charles Theodore Schaeffer,
do hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement thereof (that is to say) :-
The object of this Invention is to obtain the fatty and oily matters contained
in wash-waters of woollen and other mills, and consists of treating such wash-
waters with vinegar or acetic acid, tartar, and urine, these materials having
been introduced into the wash-waters when in a suitable vessel. The waters
are to be well agitated, and then allowed to settle; the clear water is to
be drawn off, and the oily or greasy matters are to be separated from the
precipitated mass by heat and pressure.
Having thus stated the nature of my said Invention, I will proceed to
describe the manner of performing the same. I prepare a mixture of the
following matters or materials:. vinegar or acetic acid, urine, and tartar. For

page_text: this purpose, I take at the rate of one ounce of tartar, and mix it with eight
ounces of urine; to this I add sixteen pounds of muriatic acid (1·160 s. g.),
then two gallons of water, or of wash-water, and then two gallons of vinegar,
or about one and a half gallons of acetic acid. These materials I mix well
together, and then, in order to employ such mixture to act on any particular
quantity of wash-waters which I find to differ very much when obtained from.
different mills, and also when obtained at different times from the same mill,
I take a measured quantity of the waters, and ascertain how much of the
mixture is required to be stirred in to cause the quantity of the wash-water to
precipitate the soapy and greasy matters therein; and then, in treating the
whole quantity of the waters, I place as much of the mixture into a tank as
will be required for the whole quantity of wash-waters the tank will contain,
and I theu run the wash-waters into the tank, by which means an intimate
mixture of the matters first introduced into the tank or vessel with the wash-
water will be obtained without the necessity of stirring. The whole is then
to be allowed to stand till the soapy matters are precipitated, when the clear
water is to be removed. The soapy and greasy matters obtained are to be
placed in a vessel with a false perforated bottom, covered with canvass, and
steam of about 160° of Raumeur is to be admitted below the false bottom, the
soapy or oily matters being about a foot deep on the false bottom. The oil or
greasy matters descend through the perforated bottom, and is drawn off from
below. The residue on the false bottom is next subjected to pressure, in order
to separate any remaining grease or oil.
Having thus described the nature of my said Invention, I would have it
understood, that although I have been thus particular in stating the propor-
tions of the materials used by me, I do not confine myself thereto; but what
I claim is, the preparing a mixture of the materials herein mentioned, and.
applying the same as herein explained, and then separating the greasy and
oily matters, as above described.
In witness whereof, I, the said William Charles Theodore Schaeffer,
have hereunto set my hand and seal, this Twenty-fourth day of April,
in the year of our Lord One thousand eight hundred and fifty-five.
Witness,
JAMES DUCKET, Solr, Bradford.
W. SCHAEFFER. (L.S.)