IMPROVEMENTS IN THE MANU- FACTURE OF ARTIFICIAL FUEL
Year: 1874

page_text: LETTERS PATENT to David Barker, of Northfleet, in the County of
Kent, Gentleman, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF ARTIFICIAL FUEL."
4
Sealed the 7th May 1875; and dated the 10th November 1874.
PROVISIONAL SPECIFICATION left by the said David Barker at the
Office of the Commissioners of Patents, with his Petition, on the
10th November 1874.
I, DAVID BARKER, of Northfleet, in the County of Kent, Gentleman,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
the ManufactuRE OF ARTIFICIAL FUEL," to be as follows:-'
This Invention consists of certain improvements in the manufacture of.
artificial fuel, whereby the same is deodorized and rendered smokeless..
To the liquid or other cementing substance or substances. which is or
are employed for the purpose of obtaining cohesion of the coal dust or
other carbonaceous material or materials of which the fuel is composed,,
is added caustic potash or caustic soda in the approximate proportion of
-

page_text: a quarter of an ounce thereof to one. gallon of the cementing liquid
(when such is employed); or in cases in which the cement consists of
dry pitch, or other substance or substances in a solid form, a corre-
sponding quantity of the caustic alkali is added to a proportionate
quantity by weight of the cement. The coal and cement (the latter t
containing the caustic alkali, as before mentioned) are then placed in a
"mixer" of any of the well-known descriptions-adapted to the purpose,
the latter being heated by steam, superheated steam, or otherwise.
Smoke or vapour or gas (derived from the combustion animal or
vegetable charcoal, coke, or anthracite coal, or from any substances 1
which give off carbonic acid and nitrogenous gases) are or is then forced
by any suitable means, either together or separately, into the mixer, the
supply thereof being continued until the process of mixing has been
perfectly effected and completed..
The quantity of smoke or vapour or gas required" will depend upon tho 1
nature of the coal and cement employed, as will readily be understood
by persons conversant with such subjects.
Upon the manufacture of the fuel having been completed it will be
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by George Edward Digby, of Maldon, in the County of
Essex, Solicitor, one of the Executors appointed by the Will of tho
above-named David Barker, deceased, in the Great Seal Patent
Office on the 10th May 1875.
· TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
EDWARD DIGBY, of Maldon, in the County of Essex, Solicitor, one of
the Executors appointed by the Will of David Barker, of Northfleet, in-
the County of Kent, Gentleman, who departed this life on the Twenty-
fourth day of March, in the year of Our Lord 1875, send. greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent bearing date the Tenth day of November, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,.

page_text: give and grant unto him, the said David Barker, Her special licenco
that he, the said. David Barker, my exccutors, administrators, and
assigns, or such others as he, the said David Barker, his 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 MANUFACTURE OF ARTIFICIAL FUEL," upon the condition (amongst
others) that he, the said David Barker, his executors or administrators,
by an instrument in writing under his, 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 'George Edward Digby, as such
Executor as aforesaid, do hereby declare the nature of the said In-
vention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement,
that is to say :-
-
"
The said Invention consists of certain improvements in the manu-
facture of artificial fuel, whereby the same is deodorized and rendered.
smokeless or comparatively smokeless. To the liquid or other cementing
or agglomerating substance or substances which is or are employed for
the purpose of obtaining cohesion of the particles or pieces of coal dust,
or other carbonaceous material or materials of which the fuel is com-
posed, is added caustic potash or caustic soda in the approximate
proportion of one-quarter of an ounce thereof to one gallon of the
cementing or agglomerating liquid (when such is employed), or in cases.
in which the cement consists of dry pitch, or other substance or sub-
stances of an agglomerating nature in a solid form, a corresponding
quantity of the caustic alkali is added to a proportionate quantity by
weight of the cement or agglomerating substance or substances. The
coal or carbonaceous material or materials and cement or agglomerating
substance or substances (the latter containing the caustic alkali, as before
mentioned) are then placed in a "mixer" of any of the well-known
descriptions adapted for the purpose, the latter being heated by steam,

page_text: superheated steam, or otherwise.
Smoke or vapour or gas derived
from the combustion of animal or vegetable charcoal, coke, or anthracite;
coal, or from any substance or substances which. gives.or give off car-,
bonic and nitrogenous gases) are. then forced by any suitable means,
either together or separately into the mixer, the supply thereof being
continued until the process of mixing has been perfectly effected. and.
.completed.
The quantity of smoke or vapour or gas required will depend upon the
nature of the coal and cement or agglomerating substance or substances
employed, as will readily be understood by persons conversant with such 1
subjects.
Upon the manufacture of the fuel having been completed, it will be.
found that it has been, by the treatment herein-before described,
rendered inodorous and. also smokeless or partially smokeless..
Having thus described and ascertained the nature of the said In-1
vention, and in what manner the same is to be performed, I would
observe in conclusion that what I consider novel and original and.
therefore desire to claim as being the Invention secured by the said.
herein-before in part recited Letters Patent are, the processes and
methods of treating coal dust and other carbonaceous, material or: 2
materials in the manufacture of the same into artificial fuel for the
purpose of rendering such fuel inodorous and smokeless, or partially
smokeless, substantially as herein-before described and set forth.
In witness whereof,, I, the said George Edward Digby, as such
Executor as aforesaid, have hereunto set my hand and seal, this 2
Tenth day of May, in the year of our Lord One thousand eight
hundred and seventy-five.