IMPROVEMENTS IN Das D
Year: 1875

page_text: LETTERS PATENT to Joseph Abraham Iles, of Amsterdam, in the
Kingdom of Holland, for the Invention of "IMPROVEMENTS IN
Das Drea
Sealed the 23rd December 1875, and dated the 20th July 1875.
PROVISIONAL SPECIFICATION left by the said Joseph Abraham Hes
at the Office of the Commissioners of Patents, with his Petition,
on the 20th July 1875.
I, JOSEPH ABRAHAM HES, of Amsterdam, in the Kingdom of
Holland, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF ARTIFICIAL FUEL BLOCKS," to be
as follows:-
My Invention relates to the manufacture of artificial fuel blocks by
compounding turf or peat and and small coal or coal dust with other
substances and compressing the mixture in moulds in the following
manner :—I make sifted turf or peat dust into a thin paste with water,
to which I add small coal or coal dust and river deposit, and a quantity
of coal tar. I thoroughly mix the ingredients by pugging, and then

page_text: compress the compound in moulds to drive out the water and to form
blocks, which are removed from the moulds and dried.
The proportions of the ingredients may be varied, but I find that
blocks of very good fuel can be produced by the mixture of about 100
parts by weight of peat dust, 1,000 parts of coal dust, 50 parts of coal 5
tar, and 20 parts of river deposit.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Abraham- Hes in the Great Seal Patent
Office on the 11th January 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
ABRAHAM HES, of Amsterdam, in the Kingdom of Holland, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of July, in the year of
our Lord One thousand cight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Joseph Abraham Hes, Her special
license that I, the said Joseph Abraham Hes, my executors, admini-
strators, and assigns, or such others as I, the said Joseph Abraham
Hes, my exccutors, administrators, and assigns, should at any time:
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and yend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Inven-
tion for "IMPROVEMENTS IN THE MANUFACTURE OF ARTIFICIAL FUEL BLOCKS,"
upon the condition (amongst others) that I, the said Joseph Abraham
Hes, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and scals, 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 Joseph Abraham Hes, do hereby
declare the nature of the said Invention, and in what manner the

page_text: same is to be performed, to be particularly described and ascertained
in and by the following statement thercof, that is to say :-
My Invention relates to the manufacture of artificial fuel blocks by
compounding turf or peat and small coal or coal dust with river deposit
and coal tar, and compressing the mixture in moulds in the following
manner :—I make sifted turf or peat dust into a thin paste with water,
to which I add small coal or coal dust and river deposit, and a quantity
of coal tar. I thoroughly mix the ingredients by pugging, and then
compress the compound in moulds to drive out the water and to form
blocks, which are removed from the moulds and dried.
The proportions of the ingredients may be varied, but I find that
blocks of very good fuel can be produced by the mixture of about 100
parts by weight of peat dust, 1,000 parts of coal dust, 50 parts of coal
tar, and 20 parts of river deposit.
Having thus described the nature of my Invention, and in what
manner the same is to be performed, I claim, the production of artificial
fuel blocks consisting of a mixture of coal dust or small coal with peat,
coal tar, and river deposit, substantially as herein described.
In witness whereof, I, Joseph Abraham Hes, have hercunto set
my hand and scal, this Twenty-third day of December, in
the year of our Lord One thousand eight hundred and seventy-
five.