A Manufacture of Steel Alloyed with Copper.
Year: 1888

page_text: Date of Application, 14th Nov., 1888
Complete Specification Left, 14th Aug., 1889-Accepted, 14th Sept., 1889
PROVISIONAL SPECIFICATION.
A Manufacture of Steel Alloyed with Copper.
I, HENRI SCHNEIDER of the firm of Schneider & Co. of Le Creusot in the Republic
of France Manufacturer do hereby declare the nature of this invention to be as
follows:-
This Invention relates to the manufacture either in the crucible or on a hearth of
steel containing variable proportions of copper the steel thus obtained being capable
of being employed with advantage in the manufacture of ordnance armour plates gun
barrels projectiles or other military purposes being also applicable in the manufacture
of commercial sheet metal or bars and the like.
In manufacturing the compound metal or alloy of steel and copper according to
this invention either in a crucible or otherwise either ordinary copper is employed or a
compound or alloy of copper and iron care being taken in the manufacture on a hearth
to avoid oxidising the copper before it alloys with the steel. This is accomplished by
introducing the copper or copper compound or alloy either at the commencement of
the fusion into the interior of the bath which is protected by the layer of cinder or
scoria or at the end at the same time with recarbonising agents. The process may be
combined with any existing methods of manufacturing steel in a crucible or on a
hearth the latter method being carried out with the employment of pigs or castings
and scrap iron or steel or by decarburizing and refining pig or cast metal by the aid
of ores or by direct fusion of iron or steel.
The steel produced according to this invention generally contains from about two
to four per cent. of copper this being a sufficient quantity to impart to the metal
the qualities of elasticity strength and malleability to a remarkable extent but the
invention is not limited to these proportions.
The steels alloyed with copper may be combined with varying amounts of carbon
manganese or silica or silicium according to the degree of hardness required and the
purpose for which they are employed. They may be obtained in the form of ingots
being subsequently forged or rolled or in the form of castings and in order to obtain
the best results it is preferable to temper them either with water oil or otherwise.
Datad the 14h re of Navn 1000
J. H. JOHNSON & Co.,
Agents.
COMPLETE SPECIFICATION.
A Manufacture of Steel Alloyed with Copper.
I, HENRI SCHNEIDER of the firm of Schneider & Co. of Le Creusot in the Republic
of France, Manufacturer 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 :-
This Invention relates to the manufacture either in the crucible or on a hearth of
steel containing variable proportions of copper the steel thus obtained being capable
of being employed with advantage in the manufacture of ordnance armour plates, gun
barrels, projectiles or other military purposes being also applicable in the manufacture
of commercial sheet metal or hars and the like.
In manufacturing the compound metal or alloy of steel and copper according to
this invention either in a crucible or on a hearth either ordinary copper is employed
or a compound or alloy of copper and iron care being taken in the manufacture on a
bearth to avoid oxidising the copper before it alloys with the steel. This is accomplished
by introducing the copper or copper compound or alloy either at the commencement
[D4]

page_text: of the fusion into the interior of the bath which is protected by the layer of cinder or
scoria or by introducing the copper or copper compound or alloy at the end of the
operation at the same time with the addition of the recarburizing.agents.
The new process may be combined with any existing method of manufacturing steel
in a crucible or on a hearth the latter method being carried out with the employment
of pigs or castings and scrap iron or steel or by decarburizing and refining pig or
cast metal by the aid of ores or by direct fusion of iron or steel.
The steel produced according to this invention generally contains from about two
to four per cent. of copper this being a sufficient quantity to impart to the metal the
qualities of elasticity strength and inalleability to a remarkable extent but the inven-
tion is not limited to these proportions.
The Steels alloyed with copper as herein before described are especially useful in
the manufacture of ordnance armour plates gun barrels projectiles and other military
purposes or in the manufacture of commercial sheets bars and the like. They may
be combined with varying amounts of carbon manganese or silica or silicium according
to the degree of hardness required and the purpose for which they are employed.
They may be obtained in the form of ingots being subsequently forged or rolled or in
the form of castings and in order to obtain the best results it is preferable to temper
them either with water oil or otherwise.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The manufacture either in a crucible or on a hearth of steels containing variable
proportions of copper with proportions likewise variable of carbon manganese and
silicium the said steels being suitable for the manufacture of ordnance armour plates
gun barrels projectiles and for other military purposes and for the manufacture of
commercial sheets bars and the like in the condition of cast forged or rolled metal
with or without tempering substantially as described.
1000