Improvements in Preparing Ferruginous Materials for Smelting or for Use in Open-hearth or other Processes.
Year: 1887

page_text: Date of Application, 31st Aug., 1887
Complete Left, 28th May, 1888
Complete Accepted, 29th June, 1888
Improvements in Preparing Ferruginous Materials for Smelting or
for Use in Open-hearth or other Processes.
I, ARTHUR MITCHELL CROSSLEY, of Springboig House, Shettleston, in the
County of Lanark, North Britain, Engineer, do hereby declare the nature of this
Invention to be as follows, that is to say :-
"
"
or
My said Invention has for its object the utilising of various ferruginous materials
which on account of their pulverulent or granular condition cannot be satisfactorily
smelted without special preparation. What is known as purple ore "blue billy
is one of the ferruginous materials referred to; and ironstone dust or waste or any
other ferruginous matter' in a similar condition can also be used in carrying out the
Invention.
My Invention consists in forming the ferruginous materials into blocks, bricks, or
lumps by combining therewith a small proportion of a suitable calcareous cement not
liable to softening or disintegration by moisture or other atmospheric influences to
which the blocks may be subjected. For this purpose I employ Portland cement or
Roman cement or hydraulic lime or any mixture thereof, and I thoroughly mix about
five per centum of such cement with the purple oro or other ferruginous materials
with the aid of a little water. A plastic mass is formed which is moulded or shaped
in any convenient way into blocks, bricks, or lumps, which when dry may be conveyed
to a sinelting furnace and smelted therein either alone or along with ordinary iron
Or the blocks, bricks, or lumps may be used in open-hearth, Siemens, or other
furnaces, their porous condition and the basic character of the cementing material
rendering them advantageously suitable for such applications.
оге.
Dated this Thirtieth day of August 1887.
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in Preparing Ferruginous Materials for Smelting or
for Use in Open-hearth or other Processes.
I, ARTHUR MITCHELL CROSSLEY, of Springboig House, Shettleston, in the County
of Lanark, North Britain, Engineer, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, that is to say :-
"
My said Invention has for its object the utilising of various ferruginous materials
which on account of their pulverulent or granular condition cannot be satisfactorily
smelted without special preparation. What is known as purple ore" or
"blue
billy is one of the ferruginous materials referred to; and ironstone dust or waste,
or any other ferruginous matter in a similar condition can also be used in carrying
out the Invention.
22
My Invention consists in forming the ferruginous materials into blocks, bricks, or
lumps, by combining therewith a small proportion of a suitable calcareous cement not
liable to softening or disintegration by moisture or other atmospheric influences to
which the blocks may he subjected. For this purpose I employ Portland cement, or
Roman cement, or hydraulic lime, or any mixture of such cements; and I thoroughly
mix about five per centum by weight of such cement with the purple ore or other
ferruginous materials. A larger proportion of the cement may be used but there is
no advantage in using more than seven and a half per centum. A more or less
plastic mass is formed of the materials and cement with the aid of a little water and
This mass is moulded or shaped in any convenient way into blocks, bricks, or lumps,
which when dry may be conveyed to a smelting furnace and smelted therein either
alone or along with ordinary iron orc. Or the blocks, bricks, or lumps may be used
in open-hearth, Siemens, or other furnaces, their porous condition, and the basic
character of the cementing material rendering them advantageously suitable for such
applications.
For ordinary smelting purposes I prefer to grind and mix the materials together in
a dry condition, to very slightly moisten them with water when mixed, and to
mould them into bricks or blocks in machines of the kind used for what is known as
the semi-dry mode of moulding bricks.
It is a distinctive feature of my Invent to employ a calcareous cement alone for
the agglomeration of the ferruginous materials, thus simplifying the process, and
avoiding unsatisfactory results which would be caused by premature softening aud
otherwise when carbonaceous or other ingredients are included in the combination.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is :-
The preparing of ferruginous materials for smelting or for use in open-hearth or
other furnaces, by forming them into blocks, bricks, or lumps, with the aid of a small
proportion of a suitable calcareous cement, substantially as hereinbefore described.
Dated this Twenty-sixth day of May 1888.