Im- PROVEMENTS IN REDUCING ORES, COAL, CEMENT, AND OTHER SUBSTANCES
Year: 1875

page_text: LETTERS PATENT to Thomas Morgan, of 21, Cockspur Street, Charing
Cross, in the County of Middlesex, Secretary of the Inventors'
Patent Right Association, Limited, for the Invention of "Im-
PROVEMENTS IN REDUCING ORES, COAL, CEMENT, AND OTHER SUBSTANCES."-
A communication from abroad by Georg Sachsenberg and Wilhelm
Brückner, of Rosslau ander Elbe.
-
Sealed the 28th April 1876, and dated the 1st November 1875.
PROVISIONAL SPECIFICATION left by the said Thomas Morgan at the
Office of the Commissioners of Patents, with his Petition, on the
1st November 1875.
I, THOMAS MORGAN, of 21, Cockspur Street, Charing Cross, in the
County of Middlesex, Secretary of the Inventors' Patent Right
Association, Limited, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN REDUCING ORES, COAL, CEMENT, AND OTHER SUBSTANCES,"
(a communication to me from abroad by Georg Sachsenberg and Wilhelm
Brückner, of Rosslau ander Elbe), to be as follows:-

page_text: balls, with a sieve which is fastened to the drum and connected with it
in such a manner that the ground substances after passing through
openings made in the shell of the drum is by the sieve separated into
two classes, the coarser part of which is conveyed back into the drum
through conveyor or passages, and the finer part passing through the
sievc.
Second. In the arrangement and construction of an opening for the
inlet and an opening for the outlet, both of which are so constructed
at (or near) the axis of revolution of the drum that the substance to be
ground enters the revolving drum through a stationary feed pipe by an
inlet, thence after being ground by the balls it passes through the
openings made in the casing of the drum, and the sifted substance
is led through the conveyor or passages towards the outlet, where it is
discharged.
In some cases when sifting is not required the sieve may be dispensed
with, so that the ground substance passes directly from the openings
in casing of the drum into the outer casing, thence into the passages
toward the outlet.
The use of these improvements is not limited to any particular shape
of the revolving vessel, but can be used not only for spheres but also for
cylinders (with or without cone-shaped heads), and for any other vessel
of different shape.
The drum is revolved by means of a pulley on pivots, or it may be
driven by gearing or otherwise.
SPECIFICATION in pursuance of the conditions of the Letters Patent 2
filed by the said Thomas Morgan in the Great Seal Patent Office on
the 1st May 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
MORGAN, of 21, Cockspur Street, Charing Cross, in the County of
Middlesex, Secretary of the Inventors' Patent Right Association, 3
Limited, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of November, in the year of

page_text: our Lord One thousand eight 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 Thomas Morgan, Her special licence
that I, the said Thomas Morgan, my executors, administrators, and
assigns, or such others as I, the said Thomas Morgan, 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 REDUCING
ORES, COALS, CEMENT, AND OTHER SUBSTANCES," (a communication to me from
abroad by Georg Sachsenberg and Wilhelm Brückner, of Rosslau an der
Elbe), upon the condition (amongst others) that I, the said Thomas
Morgan, 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 Scal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Morgan, do hereby declaro
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 :-
The object of this Invention is to provide more available means than
hitherto adopted of reducing ores, coals, cement, and other substances;
the nature and character whereof, and in what manner the same is to be
performed or carried out in practice will be best exemplified by describing
the same with reference to the Drawings.
As shewn by the Figures this Invention consists,―
First. In the combination of a revolving drum or vessel A containing
balls b, b, with a sieve 8, which is fastened to the drum A and con-
nected with it in such a manner that the ground substances after passing
through openings a, a, made in the shell of the drum A is by the sieve 8
separated into two classes, the coarser part of which is conveyed back

page_text: into the drum A through conveyor of passages ƒ,ƒ, the finer part passing
through the sieve 8.
Second. In the arrangement and construction of the opening i for the
inlet and opening o for the outlet, both of which are constructed at or
near the axis of revolution x, x, of the drum A, so that the substance to 5
be ground enters the revolving drum through stationary feed piper by
inlet i, thence after being ground by the balls b, b, it passes through
the openings a, a, made in the casing of the drum A, and the sifted
substance is led through the conveyor or passages g, g, towards the
outlet o, where it is discharged.
In some cases when sifting is not required the sieve s may be dispensed
with, so that the ground substance passes directly from the openings a, a,
in casing of the drum A into the outer casing m, thence into the
passages g, g, towards the outlet o.
The use of these improvements is not limited to any particular shape
of the revolving vessel A, but can be used not only for spheres but also
for cylinders (with or without cone-shaped heads), and for any other
vessel of different shape.
The drum A is revolved by means of a pulley p on pivots, 2, or it
may be driven by gearing or otherwise.
1
1
2
Having now particularly described and ascertained the nature and
object of the said Invention and in what manner the same is to be.
performed or carried out in practice, I hereby declare that I claim the
Invention of "Improvements in Reducing Ores, Coals, Cement, and other
Substances," substantially as the same is herein-before set forth and 2
described and illustrated by the accompanying Drawings.
In witness whereof, I, the said Thomas Morgan, have hereunto set
my hand and seal, this Twenty-ninth day of April, in the year of
our Lord One thousand eight hundred and seventy-six.