IMPROVEMENTS IN THE MANUFACTURE OF PIGMENTS OR PAINTS FROM CERTAIN REFUSE MATERIALS."
Year: 1862

page_text: LETTERS PATENT to Arthur Warner, of Threadneedle Street, in the
City of London, for the Invention of "IMPROVEMENTS IN THE MANUFACTURE
OF PIGMENTS OR PAINTS FROM CERTAIN REFUSE MATERIALS."
PROVISIONAL SPECIFICATION left by the said Arthur Warner at the
Office of the Commissioners of Patents, with his Petition, on the
20th June 1862.
I, ARTHUR WARNER, of Threadneedle Street, in the City of London, do
hereby declare the nature of the Invention for "IMPROVEMENTS IN THE MANU-
FACTURE OF PIGMENTS OR PAINTS FROM CERTAIN REFUSE MATERIALS," to be as
follows:-
This Invention has for its object the application of the refuse or ".slag"
obtained from puddling and reheating or other. furnaces employed in the
manufacture of malleable iron to the manufacture of pigments.or paints.
For this purpose, I take the refuse or "slag" above-referred to, and reduce.
the same to a fine powder by any of the well-known mechanical operations
for grinding or pulverizing similar materials or other hard substances. The
ground or pulverized materials may then be washed or otherwise treated and:
combined with oil or other materials, and used as a pigment or paint for
various purposes, as is well understood in the manufacture of pigments or
paints from other metallic oxides.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Arthur Warner in the Great Seal Patent Office on the 20th
December 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARTHUR
WARNER, of Threadneedle Street, in the City of London, send greeting.
•
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of June, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Arthur Warner, Her special licence that I, the said Arthur Warner, my
executors, administrators, and assigns, or such others as I, the said Arthur
Warner, 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 THE MANU-
FACTURE OF PIGMENTS OR PAINTS FROM CERTAIN REFUSE MATERIALS," upon
the condition (amongst others) that I, the said Arthur Warner, my executors
or administrators, by an instrument in writing under my, or their, or one
of their hands and seals, 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 Arthur Warner, 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 state-
ment thereof, that is to say:
This Invention has for its object the application of the refuse or "slag,"
obtained from puddling and reheating, or other furnaces employed in the
manufacture of malleable iron to the manufacture of pigments or paints. For
this purpose I take the refuse or "slag" above referred to, and reduce the
same to a fine powder by any of the well known mechanical operations for
grinding or pulverizing similar materials or other hard substances. The
ground or pulverised materials are then to be washed or otherwise treated,
and combined with oil or other materials, and used as pigments or paints for
various purposes, as is well understood in the manufacture of pigments or
paints from other oxides of iron or other metals,

page_text: And in order that my Invention may be most fully understood and readily
carried into practice, I will proceed further to state that for the purpose of
reducing the "slag" or cinder to a fine or impalpable powder, I prefer to
employ grinding apparatus, such as is employed for grinding flints for pottery
purposes, the materials being ground in water. After being sufficiently
ground, the materials are run off into a tank and allowed to subside, and then
the water is run off from the surface and the wet slimy mass is spread upon
heated flues, or the material may be dried by any other convenient means.
The pigment or substance thus prepared must then be taken and made up
into paint by mixing with water or oil, and may be used in combination with
colours and with "dryers" according to the purpose for which it is required.
In witness whereof, I, the said Arthur Warner, have hereunto set my
hand and seal, this Seventeenth day of December, in the year of our
Lord One thousand eight hundred and sixty-two.
Witness,
G. H. BIRKBECK,
Patent Agent,
34, Southampton Buildings,
Chancery Lane,
ARTHUR WARNER. (L.S.)