Improvements in the Manufacture of Iron and Steel.
Year: 1889

page_text: Date of Application, 21st Jan., 1889
Complete Specification Left, 16th Oct., 1889-Accepted, 16th N v., 1339
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Iron and Steel.
I, JOHN RICHARDSON of Myrtle Grove Pocklington in the County of York
Merchant do hereby declare the nature of this invention to be as follows:-
My invention has for its object to eliminate impurities from molten iron and to
improve the quality of the iron or steel produced from it by puddling or conversion.
For this purpose, I blow over or under into or through the molten metal high
pressure steam carrying with it certain chemicals with which it is impregnated in
the following manner. I dissolve in water with the aid of heat certain proportions
of Nitrate of soda, Nitrate, Prussiate and Bichromate of Potash, and with the solution
I mix Naphtha, Paraffin or certain other Hydrocarbons. In a separate vessel I
dissolve in boiling water, Gum Catechu and Sugar. And in a third vessel I dissolve
in boiling water Pearl Ash Acetic acid and Chloride of lime. After thorough dis-
solution of these substances, the several solutions are run into one cistern from which
a strong boiler is fed by suitable pumps. This boiler is heated until steam or vapour
is generated from its contents up to a high pressure which may be as high as 500 lbs
per square inch.
The high pressure steam or vapour carrying with it products of the chemical
ingredients employed is blown over or under or into or through molten pig in
furnaces or converters until the quality of that pig is sufficiently improved as may
be ascertained by testing.
Dated this 21st day of January 1889.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Iron and Steel.
I, JOHN RICHARDSON, of Myrtle Grove, Pocklington, in the County of York,
Merchant, 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:
My invention has for its object to eliminate impurities from molten iron and to
improve the quality of the iron or steel produced from it by puddling or conversion.
For this purpose, I blow over or under, into or through the molten metal high
pressure steam carrying with it certain chemicals with which it is impregnated in the
following manner. I dissolve in water with the aid of heat certain proportions of
Nitrate of soda, Nitrate, Prussiate and Bichromate of Potash, and with the solution I
mix Naphtha, Paraffin or certain other Hydrocarbons. In a separate vessel I dis-
solve in boiling water Gum Catechu and Sugar, and in a third vessel I dissolve in
boiling water Pearl Ash, Acetic acid and Chloride of lime. After thorough dissolu-
tion of these substances, the several solutions are run into one cistern from which a
strong boiler is fed by suitable pumps. This boiler is heated until steam or vapour is
generated froni its contents up to a high pressure which may he as high as 500 lbs.
and should not he less than 150 lbs. per square inch.
The high pressure steam or vapour, carrying with it products of the chemical
ingredients employed, is blown over or under or into or through molten pig in
furnaces or converters until the quality of that pig is sufficiently improved as may
be ascertained by testing.

page_text: The proportions of the chemical ingredients may be varied within certain limits.
1 find practically that for treating 300 tons of iron the following quantities are
serviceable-
As stated above, each of the three mixtures is to be separately dissolved, and
the whole of the solutions are then to be mixed and used as the feed of the boiler.
When the mixed steam and vapour is applied on the surface of molten metal the
jet is preferably flat_and_is directed on the metal with such force as to stir it
well up.
→
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Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is:
--
The herein described process for purifying and improving iron and steel by
directing on to or through the molten metal jets of high pressure steam carrying
with it. vapours of the substances herein before mentioned.
Dated this 16th day of October 1889
ABEL & IMRAY,
Agents for the Applicant.