IMPROVEMENTS IN THE MODE OR METHOD OF CASTING INGOTS OF STEEL
Year: 1884

page_text: I JOHN DEVONSHIRE ELLIS of Thurnscoe Hall near Rotherham in the County of
York Managing director of Mess" John Brown & Co Limited, Atlas Works Sheffield
in the said County of York do hereby declare the nature of my Invention for
IMPROVEMENTS IN THE MODE OR METHOD OF CASTING INGOTS OF STEEL, to be as
follows:-
Whereas by the use of the ordinary moulds for producing ingots of steel, such
ingots have been found to be more or less hollow through a considerable portion of
their length owing to the solidifying and consequent contraction of the steel at the
top end and at the sides of the mould, before it has become solid below and in the
centre. And whereas under my invention for which letters Patent were granted
to me bearing date 20th February 1882, Number 822, I adapted and applied to the
moulds ordinarily employed for casting ingots of steel a feeder or tube composed of
fireclay or other suitable non conducting material for the purpose of making sound
ingots by keeping the metal contained in the feeder in a molten condition longer
than that portion which was contained in the mould so that the hollow in the
ingot in course of formation might be filled up from the molten metal in the feeder.
Now I have found that such feeders of fire clay or other suitable non-conducting
material do not retain the metal in the molten condition sufficiently long to
completely fill up the said hollows in the cooling ingots. In order to overcome
this difficulty my present improvement consists in adapting and applying a feeder
inserted in the top of the mould which it enters for a short distance and extends
above into a heating flue or furnace by which it is surrounded so as to be heated
to a temperature sufficiently high to keep the steel in a molten state the said flue
or furnace being heated to the required temperature by means of coal or coke fires
or by gas or other suitable agent for maintaining and communicating the heat as
required.
W. SPENCE & SON,
Agcuts for the Applicant,
8, Quality Court.

page_text: I JOHN DEVONSHIRE ELLIS of Thurnscoe Hall near Rotherham in the County of
York Managing Director of Mess" John Brown & Co Limited Atlas Works Sheffield
in the said County of York do hereby declare the nature of my Invention. for
"IMPROVEMENTS IN THE MODE OR METHOD OF CASTING INGOTS OF STEEL' and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
"
Whereas by the use of the ordinary moulds for producing ingots of steel such
ingots have been found to be more or less hollow through a considerable portion of
their length. And whereas under my Invention for which Letters Patent were
granted to me bearing date twentieth February One thousand eight bundred and
cighty two Number 822, I adapted and applied to the moulds ordinarily employed
for casting ingots of steel a feeder or tube composed of fireclay or other suitable
material for the purpose of making ingots by keeping the metal contained in the
feeder in a molten condition longer than that portion which was contained in the
mould, so that the hollow in the ingot in course of formation might be filled up
from the molten metal in the feeder: Now I have found that such feeders of
fireclay or other suitable material do not retain the metal in the molten condition
sufficiently long to completely fill up the said hollows in the cooling ingots. In
order to overcome this difficulty my present improvement consists in adapting and
applying a feeder inserted in the top of the mould which it enters for a short
distance and extends above into a beating flue or furnace by which it is surrounded,
so as to be heated to a temperature sufficiently high to keep the steel in a molten
state, the said flue or furnace being heated to the required temperature by means
of coal or coke fires or by gas for maintaining and communicating the heat as
required.
In order that my Invention may be fully understood and readily carried into
effect I will proceed to describe more particularly in what manner the same is to
be performed by the aid of the accompanying Drawings in which are represented
different modes of applying heat to the feed tubes of moulds for casting ingots of
steel

page_text: In Fig 4 is shown an arrangement similar to Figures 2 and 3 but without a
cover brick.
The feed tube B must be of such a length and diameter as to hold sufficient
metal to feed the ingot whilst cooling and may be either cylindrical or tapered.
The interior of the feed tube may be brought to a temperature sufficiently high
to keep the metal at the melting point either in a flue as in Fig: 1 or in an iron
box or casing lined with refractory material and filled with coal or coke as in
Figures 3 and 4, either with or without blast or by gases or otherwise by which
the feed tubes can be heated and maintained at the proper temperature.
The moulds used for the arrangements as shewn by Figures 1 and 2 may be
raised or lowered by mechanical means as required.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:
The adaptation and application to the feed tubes of moulds for casting ingots of
steel of heating flues or furnaces whereby such feed tubes are heated and maintained
at the required temperature substantially as and for the purpose described.
Dated this first day of November One thousand eight hundred and eighty