IMPROVED CONSTRUCTION OF FIXED CONVERTERS FOR MAKING WROUGHT IRON AND STEEL DIRECT FROM THE BLAST FURNACE
Year: 1881

page_text: LETTERS PATENT to John Lloyd, of Prior's Lee Hall, near Shifnal,
Shropshire, for an Invention of "IMPROVED CONSTRUCTION OF FIXED
CONVERTERS FOR MAKING WROUGHT IRON AND STEEL DIRECT FROM THE
BLAST FURNACE."
PROVISIONAL SPECIFICATION left by the said John Lloyd at the Office of
the Commissioners of Patents on the 4th October 1881.
JOHN LLOYD, of Prior's Lee Hall, near Shifnal, Shropshire.
"IMPROVED
CONSTRUCTION OF FIXED CONVERTERS FOR MAKING WROUGHT IRON AND STEEL
DIRECT FROM THE BLAST FURNACE,"
The object of this Invention is a special construction of fixed converters for
making wrought iron and steel direct from the blast furnace.
The Invention consists of a vertical fixed upper structure, which is supported
by columns and a frame. The lower part, in which the tuyeres or blowers'
nozzles are arranged, is supported on a tram or moveable vehicle, the division
being secured by flanges of angle iron, which can be secured by bolts or as
desired.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Lloyd in the Great Seal Patent Office on the 4th April
1882.
JOHN LLOYD, of Prior's Lee Hall, near Shifnal, Shropshire. "IMPROVED
CONSTRUCTION OF FIXED CONVERTERS FOR MAKING WROUGHT IRON AND STEEL
DIRECT FROM THE BLAST FURNACE,"
This Invention has for object improvements in apparatus to be employed in the
manufacture of iron or steel ingots direct from the blast furnace For thie

page_text: use.
purpose I dispense with the ordinary tipping and expensive converter now in
In my Invention I obtain greater facility of manipulation and effective
treatment of the metal at less first cost in the apparatus and also in the working
of the same.
For the purpose of my Invention I use a fixed converter mado in four or more
parts, the upper one being conical, reducing the top in order to retain the heat and
prevent the metal from wasting during the operation. The intermediate parts are
intended to facilitate and reduce the cost of re-lining the converter. The bottom
is specially adapted for the tuyeres fixed around and about three inches above the
floor. A tap hole is formed at the bottom with a trough or spout for delivering
the metal into the ladle.
Around the bottom tuyere boxes are arranged with convenient doors or lids of a
simple construction, easily removed or replaced for the purpose of examining the
tuyeres, and in case of accident (through the metal backing through the tuyere) it
will give way and thus prevent further damage. These boxes are lined with a
fire resisting material to prevent burning in the event of the metal finding its way
through the tuyeres. Below these tuyere boxes there is a belt, which is connected
with the air receiver and supplies air to all the tuyeres. One of the intermediate
pieces is fitted with a trough lined with a fire resisting material and is to be used
for putting in the charge of metal. The converter is of wrought iron and is
partly supported by girders and columns and braced by angle iron flanges; the
bottom is on a small carriage adapted with wheels to run on the ordinary gauge
railway.
The construction is clearly shown in the annexed Drawings. Figure 1 is a
vertical elevation of the fixed converter; Figure 2 is a vertical section; Figure 3
is a plan.
The
The fixed converter is made in four parts A, B, C, D. The upper one A forms
the stack, and is specially made conical, and has two swivels a, b, fixed one on each
side for lifting it and for the purpose of turning it over. The second part B has
brackets c rivetted to it and is partly carried by girders d and columns e.
third part C is merely a ring and is so arranged and fixed iu position by angle iron
flanges ff, easily detachable to reduce the cost of lining, this part wearing much
longer than the bottom. The fourth part D, to which all the tuyere boxes g and
beli hare permanently fixed, and which holds the metal during the treatment, partly
hangs to the intermediate parts, and partly rests on a railway carriage E specially
made to carry it to and from the drying stove; i is the feed trough and j is the
tapping spout.
Having now described the nature of my said Invention, and in what manner the
same is to be performed, I declare that I claim,-
The arrangement and construction of apparatus, as shown at Figures 1, 2, and 3
of the annexed Drawings, for the manufacture of ingot iron and steel, or for
refining molten metal direct from the blast furnace, as described.
In witness whereof, I, the said John Lloyd, have hereunto set my hand
and seal, this First day of April, in the year of our Lord One thousand
eight hundred and eighty two.