IMPROVEMENTS IN THE MANUFACTURE OF STEEL
Year: 1883

page_text: LETTERS PATENT to William Naylor of Penistone in the County of York
1 Steel Works Manager for an Invention of "IMPROVEMENTS IN THE
MANUFACTURE OF STEEL"
2
PROVISIONAL SPECIFICATION left by the said William Naylor at the Office
of the Commissioners of Patents on the 18th July 1883:
WILLIAM NAYLOR of Penistone in the County of York Steel Works Manager
"IMPROVEMENTS IN THE MANUFACTURE OF STEEL"
My Invention has for its object improvements in the manufacture of steel such
as is now manufactured under the naine of Bessemer Steel, Siemen's Martin's Steel,
or the basic process such as the Thomas and Gilchrist.
Now the effect of my invention is to produce by the above and similar processes
a specially soft weldable steel suitable for the backs of steel facced armour plates as
also for ships plates, boiler plates, castings and other articles and to produce a
superior substitute for the best malleable iron. I will now explain the manner in
which my invention may be carried into practice.
All impurities such as carbon silicon and other impurities should be first
removed from the molten metal which may be effected by blowing in a Bessemer
Vessel lined in the ordinary manner with an acid or basic lining or by the Siemens
or other suitable furnace. I then add to the molten metal a proper proportion of
the oxide of manganese in the shape of manganese ores such as the ore known as
the black oxide of manganese with an addition of white iron Spiegeleisen or ferro-
mangenese which will be varied in proportion according to the exact quality or
nature of the plates required and thus I produce a soft weldable steel suitable for
forgings plates castings and other articles at a cheap rate.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chancellor filed by the said William Naylor in the
Patent Office on the 29th January 1884.
WILLIAM NAYLOR of Penistone in the County of York, Steel Works Manager.
"IMPROVEMENTS IN THE MANUFACTURE OF STEEL"
"
My Invention has for its object improvements in the Manufacture of Steel such
for instance as is now manufactured under the name of Bessemer Steel,"
Siemens Martins Steel," or the "Basic Process" such as the "Thomas and
Gilchrist."
<<
Now the effect of my Invention is to produce by the above and similar processes
a specially soft weldable steel suitable for the backs of steel faced armour plates as
also for Ships Plates, Boiler Plates, Castings and other articles and to produce a
superior substitute for the best malleable iron I will explain the process in
making Soft Steel according to my invention aforesaid.
i
.
First I take the molten cast iron metal and run it into a Bessemer or other
convertor or other suitable vessel having an acid or basic lining where such
impurities are removed as may be possible and desirable by blowing as is usual in
such vessels or in other convenient manner such as the Siemens or other furnace so
that such impurities are removed at this initial stage of the process. I then add
to this molten metal so partly purified the following ingredients by placing them
in a suitable ladle or other vessel and then pouring the molten metal aforesaid
upon them.
Take a Four Ton Blow of Metal
I add Oxide of Manganese from three quarters of a Hundredweight to two
Hundredweights, that is, I take of the highest and lowest quality at present
known in the Market, but I prefer the highest quality commonly known as Per
Oxide as such as would be supplied by E. W. Crebbins and Company of Liverpool
the quantity being regulated somewhat according to the nature of the iron used
with a suitable proportion of Spiegeleisen or Ferro-Manganese say three hundred-
weight or other equivalent but I prefer the Ferro-Manganese which will be varied
in proportion according to the exact quality or nature of the plates required, thus
producing at a cheap rate a soft weldable steel suitable for, forgings, plates, castings,
and other articles.
Having now described my invention of Improvements in the Manufacture of
Steel I would have it understood that I do not confine myself to the exact
proportions herein named as some variation may be made without very great
injury to the metal, but what I do claim is.
The Manufacture of Soft Steel by the introduction of the Oxide of Manganese
into the Molten Metal previously prepared as herein set forth in combination with
the other substance or substances substantially as herein set forth.
از
"
In witness whereof I the said William Naylor have hereunto set my hand and
seal this twenty third day of January in the year of our Lord One thousand eight
hundred and eighty four.