Improvements in the Manufacture of Steel or Ingot Iron.
Year: 1892

page_text: Date of Application, 17th Dec., 1892
Complete Specification Left, 14th Sept., 1893-Accepted, 21st Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Steel or Ingot Iron.
A communication from abroad by JEAN MEYER, Directeur de la Société
Anonyme des Hauts Fourneaux et Forges de Dudelange, of Dudelange, in
the Grand Duchy of Luxemburg.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County
of Middlesex, Fellow of the Chartered Institute of Patent Agents, do hereby
declare the nature of this invention to be as follows:-
In the Specification to Letters Patent No. 17,613 of 1890 is described certain
mprovements in the manufacture of steel and ingot iron which consists in
recarburizing the metal in the casting ladle by means of briquettes made of carbon
with or without the addition of lime.
The present invention relates to improvements upon the above process.
It has been found that an equally efficient and advantageous result for certain
classes or grades of metal is obtained by employing the coal coke or other
carbonaceous material (with or without the admixture of lime minerals or sub-
stances) in a pulverized form instead of in the solid form of briquettes, balls, blocks,
or the like.
As regards the carburization of the metal a further result which in various cases
is efficient and advantageous is obtained by adding the mixture either in its
pulverized form or in the form of briquettes or the like to the metal when in the
Bessemer converter or other furnace or in the ingot moulds, or to the running
metal passing into such moulds or from one furnace to another in place of adding
it only to the metal in the casting ladle as previously proposed.
Dated this 17th day of December 1892.
PHILIP M. JUSTICE.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Steel or Ingot Iron.
A communication from abroad by JEAN MEYER, Directeur de la Société
Anonyme des Hauts Fourneaux et Forges de Dudelange, of Dudelange, in
the Grand Duchy of Luxemburg.
I PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County
of Middlesex Fellow of the Chartered Institute of Patent Agents 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:—
In the Specification to Letters Patent No. 17,613 of 1890 is described certain
improvements in the manufacture of steel and ingot iron which consists in
recarburizing the metal in the casting ladle by means of briquettes of carbon, the
composition of which is therein set forth.
The present invention relates to improvements upon the above process.
It has been found that an equally efficient and advantageous result for certain
classes or grades of metal is obtained by employing the coal or other carbonaceous
material or composition in a pulverized form instead of in the solid form of
briquettes balls, blocks or the like.
As regards the carburization of the metal a further result which in various
cases is efficient and advantageous is obtained by adding the mixture either in its

page_text: pulverized form, or in the form of briquettes or the like to the metal when in the
Bessemer converter or other furnace, or in the ingot moulds, or to the running
metal passing into such moulds or from one furnace to another in place of adding
it only to the metal in the casting ladle as previously proposed.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me by
my foreign correspondent I declare that what I claim is {
1. As an improvement upon the carburization process described in the Specifica-
tion to Letters Patent No. 17613 of 1890 the employment of the substances
therein set forth in a pulverized form instead of in the form of briquettes
substantially as described.
2. The addition of said substances in the Bessemer converter or furnace, ingot
moulds or running metal in a pulverized form or in the form of briquettes
substantially as described.
Dated the 14th dev of Sentember 1893.
PHILIP M. JUSTICE.