AN IMPROVED PROCESS OF DECOLORIZING SYRUPS, JUICES, LIQUORS, OILS, AND OTHER LIQUIDS, ALSO GASES, BY THE USE OF CARBONIZED IRON ORE OR CARBONATE OF IRON
Year: 1871

page_text: LETTERS PATENT to Richard Dawlings, of Great Winchester Street,
in the City of London, for the Invention of "AN IMPROVED PROCESS
OF DECOLORIZING SYRUPS, JUICES, LIQUORS, OILS, AND OTHER LIQUIDS, ALSO
GASES, BY THE USE OF CARBONIZED IRON ORE OR CARBONATE OF IRON."-A
communication from abroad by John Brough and Walter H. Gilson,
of New York, U.S. America.
PROVISIONAL SPECIFICATION left by the said Richard Dawlings at
the Office of the Commissioners of Patents, with his Petition, on
the 25th May 1871.
I, RICHARD DAWLINGS, of Great Winchester Street, in the City of
London, do hereby declare the nature of the said Invention for "AN
IMPROVED PROCESS OF DECOLORIZING SYRUPS, JUICES, LIQUORS, OILS, AND OTHER
LIQUIDS, ALSO GASES, BY THE USE OF CARBONIZED IRON ORE OR CARBONATE OF
IRON," a communication to me from abroad by John Brough & Walter
H. Gilson, of New York, U.S. America, to be as follows:-
This Invention consists in the employment of carbonized iron ore or
carbonate of iron for decolorizing syrups, juices, liquors, oils, and other

page_text: liquids, and also gases. I take the carbonate of iron or carbonized iron
ore and crack or otherwise reduce it, into small particles suitable for
filtering purposes and afterwards expose it to the action of fire when it
is ready for use.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Dawlings in the Great Seal Patent Office
on the 23rd November 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
DAWLINGS, of Great Winchester Street, in the City of London, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of May, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Richard Dawlings, Her special licence
that I, the said Richard Dawlings, my executors, administrators, and
assigns, or such others as I, the said Richard Dawlings, 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 "AN IMPROVED
PROCESS OF DECOLORIZING SYRUPS, JUICES, LIQUORS, OILS, AND OTHER LIQUIDS,
ALSO GASES, BY THE USE OF CARBONIZED IRON ORE OR CARBONATE OF IRON," a
communication to me from abroad by John Brough and Walter H.
Gilson, of New York, U. S. America, upon the condition (amongst
others) that I, the said Richard Dawlings, my executors or adminis-
trators, 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 per-
formed, 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 Richard Dawlings, do hereby declare
the nature of the said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertamed manu vy
the following statement, that is to say :-
1
This Invention consists in the manufacture and use of a material
somewhat resembling bone black in its properties, but superior in
many respects and much cheaper in cost, for filtering, purifying, and
decolorizing syrups, spirits, oils, vegetable extracts, water, and other
liquids and solutions or gases.
The material which I use in carrying out the Invention and which I
denominate carbonized iron ore is made by treating iron ore with coal
tar, resin, pitch, oil, or other carbonaceous material. The following
method will answer, but I do not limit myself to that, as other equivalent
means may be used.
I take granulated or pulverized iron and mix about ten parts with
one part of coal tar, then place the mixture in a retort such as used for
the manufacture of coal gas or for distilling coal, or in a suitable kiln or
furnace, and there keep it at a red heat till all volatile matters are
driven off. The kiln used for burning and reburning bone black will
answer for the preparation of my compound. When the mass is suffi-
ciently burned it is placed in coolers, such as used for bone black, or
dropped into water so as to be cooled. This product is then granulated
sifted, and sorted in the manner well known to the manufacturers of
bone black, and is ready to be used in clarifying syrups, spirits, and
other liquids either by filtration or by mixing and agitating the material
with the liquid.
I have given what I regard as the best proportion, but I do not limit
myself to these proportions, for they may be varied without departing
from the nature of the Invention.
After the material has been exhausted by use, it may be renewed or
revivified by mixing it with a small quantity of coal tar and reburning,
or by simple reburning. By means of this compound syrups may be
refined, spirits rectified, and liquids decolorized in a better and cheaper
manner than heretofore.
Having thus described the Invention, what I claim and desire to
secure by Letters Patent is,-
First. The process herein described for purifying syrups, spirits, oils,
and other liquids or gases, consisting in treating them with carbonized
iron ore prepared and used substantially as herein set forth.

page_text: Second. The new composition herein described called carbonized iron
ore produced by treating iron ore by means of any suitable carbonizing
material and then cooling, granulating, and preparing the same so as
to be used for filtering and purifying syrups and other liquids or gases
as set forth.
In witness whereof, I, the said Richard Dawlings, have hereunto
set my hand and seal, this Twenty-third day of November, in
the year of our Lord One thousand eight hundred and seventy-
one.