IMPROVEMENTS IN THE PRODUCTION OF IRON AND STEEL
Year: 1868

page_text: LETTERS PATENT to John Heaton, of Langley Mills, in the County
of Derby, Engineer, for the Invention of "IMPROVEMENTS IN THE
PRODUCTION OF IRON AND STEEL"
Sealed the 1st April 1869, and dated the 29th October 1868.
PROVISIONAL SPECIFICATION left by the said John Heaton at the
Office of the Commissioners of Patents, with his Petition, on. the
29th October 1868.
I, JOHN HEATON, of Langley Mills, in the County of Derby,
Engineer, do hereby declare the nature of my Invention for "Im--
PROVEMENTS IN THE PRODUCTION OF IRON AND STEEL," to be as follows:-
My Invention relates to improvements in the manufacture and pro--
duction of iron and steel, and consists,-
1st. In the employment of the cinder or slag resulting from the
balling of steel or of steely iron which has been obtained by the action
of nitrate of soda or of nitrate of potash upon cast iron, either in a
converting vessel or apparatus such as is described in the Specifications
of Letters Patent granted to me, dated A.D. 1866, and No. 798, and
A.D. 1867, and No. 1295, or in any other suitable furnace or apparatus,

page_text: This cinder or slag I employ either in what is known as the puddling
process for the production of malleable iron or of steel from cast iron
or in the blast furnace for the purpose of improving the quality of cast
or pig iron to be produced.
2nd. In the employment of the product obtained by heating together
oxide of iron and carbonate of soda or caustic soda, or mixtures of the
same for the production of malleable iron or steel from cast-iron in
what is known as the puddling process, and also its employment in the
blast furnace for the purpose of improving the quality of cast or pig
iron to be produced.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Heaton in the Great Seal Patent Office
on the 29th April 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HEATON, of Langley Mills, in the County of Derby, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of October, in the
year of our Lord One thousand eight hundred and sixty-cight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Heaton, Her special
license that I, the said John Heaton, my executors, administrators,
and assigns, or such others as I, the said John Heaton, my executors,
administrators, or 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
PRODUCTION OF IRON AND STEEL," upon the condition (amongst others)
that I, the said John Heaton, my executors or administrators, by an
instrument in writing under my hand and seal, 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 Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said John Heaton,, do, hereby declare
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, that is to say:―
My said Invention relates to," improvements in the manufacture and
production of iron and steel, and consists,
Firstly. In the nonployment of the cinder or slag obtained in the
production of steel or of steely iron, or of iron from products which have
been obtained by the action of nitrate of soda or of nitrate of potash
upon cast iron either in a converting vessel or apparatus such as is
described in the Specifications of Letters Patent, granted to me dated
in the year of our Lord One thousand eight hundred and sixty-six, and
numbered 798, and in the year of our Lord One thousand eight hundred
and sixty-seven, and numbered 1295, or in any other suitable furnace
or apparatus. This cinder or slag I employ either in what is known as
the puddling process for the production of malleable iron or of steel
from cast iron or in the blast furnace for the purpose of improving the
quality of cast or pig iron to be produced.
Secondly. In the employment of the product obtained by heating
together oxide of iron and carbonate of soda or potash, or caustic soda
potash or mixtures of the same for the productions of malleable iron or
steel from cast iron in what is known as the puddling process, and also
its employment in the blast furnace for the purpose of improving the
quality of cast or pig iron to be produced. The proportions in which
I employ such cinder or slag will depend upon the impurities existing
in the cast iron or iron ore; but I have found that when the cinder
or slag herein referred to is employed in the proportion of about fourteen
pounds to every charge of about four hundredweight of cast iron, and
in about the same relative proportions when employed in the blast
furnace, that good results are obtained.
Having now described and particularly ascertained the nature of
my said Invention, and the manner in which the same is or may be
used or carried into effect, I would observe in conclusion that what I
consider to be novel and original, and therefore claim as the Invention
secured to me by the herein-beforcin part recited Letters Patent is,―
First. The application and use to and in the production of iron and
steal of the cinder or slag resulting from the processes herein mentioned,
substantially in the manner herein-before described.

page_text: Second. The application and use to and in the production of malleable
iron or steal from cast iron of the product obtained by heating together
oxide of iron and carbonate of soda or caustic soda, or mixtures of the
same, substantially as herein-before described.
.
In witness whereof, I, the said John Heaton, have to this my
Specification set my hand and seal, the Twenty-ninth day of
April, One thousand eight hundred and sixty-nine.
JOHN HEATON. (L.S.))