IMPROVEMENTS IN THE PRODUCTION OF ARTIFICIAL FUEL
Year: 1874

page_text: LETTERS PATENT to Alexander Frederic Corbett, of Doncaster, in
the County of York, Lieutenant-Colonel in Her Majesty's Bengal
Staff Corps, for the Invention of "IMPROVEMENTS IN THE PRODUCTION
OF ARTIFICIAL FUEL."
Sealed the 14th April 1874, and dated the 14th February 1874.
PROVISIONAL SPECIFICATION left by the said Alexander Frederic
Corbett at the Office of the Commissioners of Patents, with his
Petition, on the 14th February 1874.
I, ALEXANDER FREDERIC CORBETT, of Doncaster, in the County of
York, Lieutenant-Colonel in Her Majesty's Bengal Staff Corps, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
THE PRODUCTION OF ARTIFICIAL FUEL," to be as follows:-
The object of this Invention is the production of artificial fuel from a
combination of charcoal, clay or clayey earth, and cattle dung or peat,
and consists in reducing vegetable charcoal to a powder in a mill, and
then mixing this powder with a quantity of dry granulated clay or a dry

page_text: clayey earth. When these are intimately associated I pour and mix a
quantity of liquor in which dry cattle dung has been stirred until a paste
or a kind of mortar has been formed, which can be handled or shaped in
moulds of convenient sizes, and from which the fuel is removed to be
dried by exposure or by artificial means.
I have mentioned dry cattle dung as one of the ingredients from
which my artificial fuel can be made, but in lieu thereof dry peat may
be used. The liquified cattle dung is mixed with powdered charcoal and
clay, the clay containing all the elements tending to bind (after satura-
tion) the dung and the charcoal into a solid mass, the dung affording 1
ventilating crevices through the block while the lump is being burnt.
I do not limit myself to any exact proportions of the different
ingredients named, as they would vary according to the purpose for
which the fuel is intended, whether for domestic, metallurgical, or other
purposes, but as an example I take, say-
5 lb. by weight powdered charcoal,
6
"
وو
"
clay or clayey earth,
1 gallon of liquid into which 6 or 7 lb. dried cattle
dung or peat have been stirred.
J
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alexander Frederic Corbett in the Great Seal Patent
Office on the 13th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
FREDERIC CORBETT, of Doncaster, in the County of York, Lieutenant-
Colonel in Her Majesty's Bengal Staff Corps, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of February, in the 3
year of our Lord One thousand eight hundred and seventy-four, in
the thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Alexander Frederic Corbett,

page_text: Her special licence that I, the said Alexander Frederic Corbett, my
executors, administrators, and assigns, or such others as I, the said
Alexander Frederic Corbett, 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 PRODUCTION OF ARTIFICIAL FUEL," upon the
condition (amongst others) that I, the said Alexander Frederic Corbett,
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 Alexander Frederic Corbett, do hereby
declare the nature of my 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 the production of artificial fuel from
a combination of charcoal, clay or clayey earth, and cattle dung, and
consists in reducing vegetable charcoal to a powder in a mill, and then
mixing this powder with a quantity of dry granulated clay, or a dry
clayey earth. When these are intimately associated I pour and mix a
quantity of liquor in which dry cattle dung has been stirred until a paste
or a kind of mortar has been formed, which can be handled or shaped in
moulds of convenient sizes, and from which the fuel is removed to be
dried by exposure or by artificial means.
I have mentioned dry cattle dung as one of the ingredients from
which my artificial fuel can be made, but in lieu thereof dry peat may
be used. The liquified cattle dung is mixed with powdered charcoal and
clay, the clay containing all the elements tending to bind (after satura-
tion) the dung and the charcoal into a solid mass, the dung affording
ventilating crevices through the block while the lump is being burnt.
I do not limit myself to any exact proportions of the different
ingredients named, as they would vary according to the purpose for