IMPROVEMENTS IN THE MANUFACTURE OF FINISHED IRONS
Year: 1868

page_text: LETTERS PATENT to William Cooke and John Cooke, trading under
the Firm of William Cooke and Company, of Tinsley, in the
Parish of Rotherham, in the West Riding of the County of York,
Iron and Steel Manufacturers, for the Invention of "IMPROVEMENTS
T
PROVISIONAL SPECIFICATION left by the said William Cooke and
John Cooke at the Office of the Commissioners of Patents, with
their Petition, on the 19th February 1868.
We, WILLIAM COOKE and JOHN COOKE, trading under the Firm of
William Cook and Company, of Tinsley, in the Parish of Rotherham,
in the West Riding of the County of York, Iron and Steel Manu-
facturers, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF FINISHED IRONS," to be as follows:-
This Invention relates to certain improvements in the manufacture
of finished irons for spring iron, puddled steel rails, slabs, tyres, and
all kinds of merchant irons.

page_text: We make use of an ordinary cupola, to which is attached a refinery
with tuyeres for blowing cold or hot air. The cupola is charged with
coke or charcoal, or both combined, and crude iron, and on applying
the blast the crude iron becomes molten, it then passes into the refinery
in its molten state; the refinery is filled with charcoal, the free oxygen
passes through the tuyercs, and coming in contact with the molten
iron re-carbonizes it, destroys the silicon, phosphorous, and sulphur;
the molten iron is then conveyed into the puddling furnaces and made
into finished iron.
The advantages derived from this Invention are, a saving of 10 per
cent. of fuel in puddling, a saving of at least 5 per cent. in melting
from the crude to the molten iron; that one-third more iron can be
applied to each furnace daily; that one puddler and a helper are
sufficient for each furnace. The saving in puddling the iron will be
four per cent.; a saving is effected in the use of Ulverstone ore for
fettling or preparing the furnaces of 7 per cent., and a saving in tools
for puddling of 2 per cent.
According to this Invention all descriptions of cast iron, Bessemer
scran and all kinds of crude iron can he worked un
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Cooke and John Cooke in the Great Seal
Patent Office on the 19th August 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
COOKE and JOHN COOKE, trading under the Name of William Cooke
and Company, of Tinsley, in the Parish of Rotherham, in the West
Riding of the County of York, Iron and Steel Manufacturers, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of February, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said William Cooke and John Cooke, Her
special licence, that we, the said William Cooke and John Cooke, our
executors, administrators, and assigns, or such others as we, the said
William Cooke and John Cooke, our executors, administrators, and

page_text: 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 THE MANUFACTURE OF FINISHED
IRONS," upon the condition (amongst others) that we, the said William
Cooke and John Cooke, our executors or administrators, by an instru-
ment in writing under our, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Inven-
tion, 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 William Cooke, do hereby declare
the nature of our said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement:-
Our Invention relates to certain improvements in the manufacture
of finished irons for spring iron, puddled steel rails, slabs, tyres, and
all kinds of merchant irons.
We make use of an ordinary cupola, to which is attached a refinery
with tuyeres for blowing cold or hot air. The cupola is charged with
coke or charcoal, or both combined, and crude iron, and on applying
the blast the crude iron becomes molten, it then passes into the refinery
in its molten state; the refinery is filled with charcoal, the free oxygen
passes through the tuyeres, and coming in contact with the molten iron
re-carbonizes it and destroys the silicon, phosphorous, and sulphur;
the molten iron is then conveyed into the puddling furnaces and made
into finished iron.
The advantages derived from this Invention. are, a saving of ten per
cent. of fuel in puddling, a saving of at least five per cent. in melting
from the crude to the molten iron; that one-third more iron can be
applied to each furnace daily; that one puddler and a helper are
sufficient for each furnace. The saving in puddling the iron will be
four per cent.; a saving is effected in the use of Ulverstone ore for
fettling or preparing the furnaces of seven and a half per cent., and
a saving in tools for puddling of two and a half;
per cent.
According to this Invention all descriptions of cast iron, Bessemer
scrap, and all kinds of crude iron can be worked up.

page_text: In order that our said Invention may be completely understood we
annex the accompanying Drawings, in which Fig. 1 represents a front
elevation of the cupola and refinery, and Fig. 2 a sectional clevation.
The interior of the cupola is shewn by a; b is the refinery, into
which we introduce two tuyeres at an angle of forty-five degrees, or
thereabouts; c is the filling hole; d, the tuyere of the cupola; and e
the tuyere of the refinery b. In Fig. 1, f shews the tapping hole. By
this arrangement of furnace the processes described and their results
will easily be understood.
Having now described the nature of our said Invention, and the
manner in which the same is to be performed, we would remark, in
conclusion, that we do not limit ourselves to any definite proportions
of materials, or to any specific form of cupola and furnace, as the
same may obviously be varied or modified without departing from the
principles of the Invention; but what we claim and desire to be
secured to us by the herein in part recited Letters Patent are, the
improvements in the manufacture of finished irons, by first operating
on the crude iron in the cupola, and, secondly, on the molten iron in
the refinery, together with the introduction of the tuyeres at the angle
described, or any other angle to suit the different purposes and classes
of iron, substantially as herein specified.
In witness whereof, I, the said William Cooke, have hereunto set
my hand and seal, this Fourteenth day of August, in the year
of our Lord One thousand eight hundred and sixty-eight.
Witness,
T. ALFRED MANN,
Darley Hall,
Barnsley.
WILLIAM COOKE. (L.s.)