AN IMPROVED METHOD FOR THE PREPARATION OF A COMPOUND FUEL
Year: 1880

page_text: LETTERS PATENT to Ludwig Konow, of Bergen, in the Kingdom of Norway,
Gentleman, at present of 23, Rood Lane, in the City of London, for an
Invention of "AN IMPROVED METHOD FOR THE PREPARATION OF A COMPOUND
FUEL."
PROVISIONAL SPECIFICATION left by the said Ludwig Konow at the Offico
of the Commissioners of Patents on the 21st April 1880.
LUDWIG KONOW, of Bergen, in the Kingdom of Norway, Gentleman, at present
of 23, Rood Lano, in the City of London. "AN IMPROVED METHOD FOR THE
PREPARATION OF A COMPOUND FUEL"
My Invention has for its object the combination of certain known combustible
materials in such a manner ns to produce a more perfect combustion, and a greater
evolution of heat than when either component is used alone.
For my combination I use as one constituent any ordinary class of coal, whether
anthracitic or bitumenous, and prepare it for admixture by separating out any undue
admixture of dust, and by breaking up the larger picces so as not to exceed in
dimensions about the size of the closed fist, and this coal should be in a dry
condition.
This prepared coal I then mix with sawdust, peat, or analogous fibrous materials
in suitable proportions, hereinafter specified. This sawdust, peat, or fibrous material
must be thoroughly dried before admixture with the coal, and where necessary, as
in the case of the peat, must be broken up into small pieces about the size of cob
nuts, but not pulverized.
The proportions of the mixture vary with the richness or character of the coal.
When the coal is rich of a bitumenous character, such as the best steam coal, the
proportions are an equal bulk of coal to an equal bulk, more or less, of the sawdust
or peat. When the coal is wanting in richness, i.c., is more ligneous, I increase the
proportion of coal, and reduce that of the sawdust or peat up to the limiting
proportion of two of coal to one of sawdust or peat.
When the compound fuel has been thus prepared it is ready for use in an ordinary
boiler or other furnace or grato in conjunction with an ordinary draught, and is
shovelled on in the usual manner.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Ludwig Konow in the Great Seal Patent Office on the 21st
October 1880.
"
LUDWIG KONOW, of Bergen, in the Kingdom of Norway, Gentleman, at present
of 23, Rood Lane, in the City of London. 'AN IMPROVED METHOD FOR THE
PREPARATION OF A COMPOUND FUEL."
My Invention has for its object the combination of certain known combustible
materials in such a manner as to produce a more perfect combustion, and a greater
evolution of heat than when either component is used alone.
For my combination I use as one constituent any ordinary class of coal, whether
anthracitic or bitumenous, and prepare it for admixture by separating out any
undue admixture of dust, and by breaking up the larger pieces so as not to exceed
in dimensions about the size of the closed fist, and this coal should be in a dry
condition.
This prepared coal I then mix with sawdust, peat, or analogous fibrous materials
in suitable proportions hereinafter specified. This sawdust, peat, or fibrous material
must be thoroughly dried before adinixture with the coal, and where necessary, as
in the case of the peat, must be broken up into small pieces about the size of cob
nuts; but not pulverized.
The proportions of the mixture vary with the richness or character of the coal.
When the coal is rich of a bitumenous character, such as the best steam coal, the
proportions are an equal bulk of coal to an equal bulk, more or less, of the sawdust
or peat. When the coal is wanting in richness, i.c., is more ligneous, I increase
the proportion of coal, and reduce that of the sawdust or peat up to the limiting
proportion of two of coal and one of sawdust or peat.
When the compound fuel has been thus prepared it is ready for use in an
ordinary boiler or other furnace or grato in conjunction with an ordinary draught,
and is shovelled on in the usual manner.
Having now ascertained and described my Invention, I would wish it understood
that what I claim as novel and useful, and desire to protect by Letters Patent is,
the method of preparation of a compound fuel by the separation of dust, the
breaking up of the coal into suitable dimensions, and the thorough drying of both
the coal and sawdust, peat, or fibrous material before use, as herein before
specified.
In witness whereof, I, the said Ludwig Konow, have hereunto set my
seal and hand, this 27 day of September, in the year of our Lord One