AN IMPROVEMENT IN THE MANUFACTURE OF ARTIFICIAL OR BLOCK FUEL.
Year: 1873

page_text: LETTERS PATENT to Richard William Johnson, of 49, Queen's Gate.
Gardens, in the County of Middlesex, Esquire, for the Invention of
"AN IMPROVEMENT IN THE MANUFACTURE OF ARTIFICIAL OR BLOCK FUEL.".
A communication from abroad by William Charles Arthur Roettger,
of Brussels, in the Kingdom of Belgium.
PROVISIONAL SPECIFICATION left by the said Richard William
Johnson at the Office of the Commissioners of Patents, with his
Petition, on the 3rd October 1878.
I, RICHARD WILLIAM JOHNSON, of 49, Queen's Gate Gardens, in
the County of Middlesex, Esquire, do hereby declare the nature of the
said Invention for "AN. IMPROVEMENT IN THE MANUFACTURE OF ARTIFICIAL
OR BLOCK FUEL," to be as follows :-

page_text: in conjunction. For this purpose a mixture is made as follows:-To,
say, one hundred parts of the above-mentioned dust or cinders in their
ordinary condition, from 4% to 7 parts, or for the latter, more of
hydraulic cement is employed. These being intimately mixed together
with the above named dust, from 1% to 1% of silicate of soda is added
after its reduction to a minimum strength of 26° density. A little of
this is sprinkled with water and quickly mixed with the coke dust.
The whole is now ready to be compressed by hand or by machine
pressure into moulds.
In some cases an inflammable matter is added to the above stated
dust, mixed with hydraulic cement. If such coal or cokc dust, or
cinders, proceed from coal, which by its nature is difficult to ignite,
one per cent of finely powdered resin or dry pitch or more is added,
according to the condition of the said coal, coke, or cinders, which is
intimately mixed in proper proportions; the liquid silicato is afterwards
added and the compression proceeded with.
Sawdust, tan, peat, or any other vegetable matter, which in a com-
pressed form may be used as fuel, can be compressed with an admixture
of the above mentioned ingredients, coal or coke dust, hydraulic
cement, silicate, and resin, or with either one, two, or three of them in 2
combination, the hydraulic cement being one of the chosen ingredients,
as in the two preceding instances.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard William Jolinson in the Great Seal
Patent Office on the 2nd April 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICILARD
WILLIAM JOHNSON of 49, Queen's Gate Gardens, in the County of
Middlesex, Esquire, send greeting.
21
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of October, in the year of 8
our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, tho said Richard William Johnson, Her special

page_text: licence that 1, the said Richard William Johnson, my exécutors,
administrators, and assigns, or such others as I, the said Richard
William Johnson, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time, and at all timės
thereafter during the term therein expressed, should and lawfully might
mako, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an In-
vention for "AN IMPROVEMENT in the Manufacture of ArtificiAL OR BLOCK
FUEL," (a communication from abroad by William Charles Arthur Roettger,
of Brussels, in the Kingdom of Belgium, upon the condition (amongst
others) that I, the said Richard William Johnson, 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 tho
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 dato
of the said Letters Patent.
.
NOW KNOW YE, that I, the said Richard William Johnson, 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 statement thereof, that is to say :-
This Invention relates to a novel admixture of substances for the
binding together of coal or coko dust, or cinders, to enable them to be
burnt as fuel for any purpose whatever, alone, or with coal and coke
in conjunction. For this purpose a mixture is made as follows:-To,
say, one hundred parts of the above-mentioned dust or cinders in their
ordinary condition, of from 4%, to 9 parts by measure, or for the latter,
more of hydraulic cement is employed. These being intimately mixed
together with the above-named dust, from 1% to 1% of silicate of
soda is added after its reduction to a minimum strength of 26° density.
This, with a quantity of water sufficient to saturate the dry mixture, is
sprinkled over and quickly mixed with the prepared dust. The whole
is now ready to be compressed by hand or by machine pressure into
moulds.

page_text: per cent by weight of finely powdered resin or dry pitch or more is
ádded, according to the condition of the said coal, coke, or cinders, which
are intimately mixed and in proper proportions the liquid silicato is
afterwards added, and the compression proceeded with.
Sawdust, tan, peat, or any other vegetable matter, which in a
compressed form may be used as fuel, can be compressed with an
admixture of the above-mentioned ingredients, coal or coko dust,
hydraulic cement, silicate, and resin, or with either one, two, or moro
of them in combination, the hydraulic cement being one of the chosen
ingredients, as in the two preceding instances.
Having set forth the nature of the said Invontion, and in what
manner the same is to be performed, I claim,-
Firstly. The combination of coal or coko dust, or cinders, with
hydraulic cement and silicate of soda, and the moulding of blocks there-
from suitable to use as fucl, as described.
Secondly. The modifications herein-before referred to, in which the
constituents or ingredients are rendered more inflammable for burning
and more binding when in block, as described,
In witness whereof, I, the said Richard William Johnson, have
hereunto set my hand and seal, this First day of April One
thousand eight hundred and seventy-four.