Improvements in Preparing Malleable Iron for Making Tubes and other Articles.
Year: 1887

page_text: Date of Application, 17th Mar., 1887
Complete Left, 15th Dec., 1887
Complete Accepted, 20th Jan., 1888
PROVISIONAL SPECIFICATION.
Improvements in Preparing Malleable Iron for Making Tubes and
other Articles.
I, DUGALD MCCORKINDALE, of the Clydesdale Iron and Steel Company, Mossend,
in the County of Lanark, North Britain, Ironmaster, do hereby declare the nature
of this Invention to be as follows, that is to say :-
This Invention has for its object the preparing of malicable iron in an improved
manner for making tubes and other articles, and it consists in certain modifications of
the processes ordinarily employed in making what is known as hoop iron.
In carrying out the Invention, instead of forming ordinary puddled bars and
passing these through suitable rolls until sufficiently reduced in thickness, in which
operations the bars are elongated always in one direction so that the fibre or grain
remains the long way of the bar and of the final hoop pieces, broad puddled bars,
slabs, or plates are formed and after being rolled to a certain degree each bar, slab, or
plate is divided transversely into suitable widths and then these transversely divided
pieces which have the fibre or grain across them are passed through suitable rolls to
reduce and elongate them as required. Two or more of the narrow transversely cut
bars may be piled and rolled together. The final hoop pieces or elongated plates
made in this improved manner will be much more suitable for being bended to form
tubes, than ordinary hoop pieces having the fibre or grain longitudinal whilst the
formation of the bars by cutting them from the broad bars or slabs will cause the
finished edges to be much firmer, stronger, and more regular and even than those of
ordinary hoop pieces.
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page_text: COMPLETE SPECIFICATION.
Improvements in Preparing Malleable Iron for Making Tubes and
other Articles.
I, DUGALD MCCORKINDALE, of the Clydesdale Iron and Steel Company, Mossend,
in the County of Lanark, North Britain, Ironmaster, 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, that is to say :-
My said Invention has for its object the preparing of malleable iron in an improved
manner for making tubes and other articles, and it consists in certain modifications of
the processes ordinarily employed in making what is known as hoop iron or
similar iron.
In carrying out my Invention instead of forming ordinary puddled bars and
passing these through suitable rolls until sufficiently reduced in thickness, in which
operations the bars are elongated always in one direction so that the fibre or grain
remains the long way of the bar and of the final hoop or other pieces, broad puddled
bars, or what may be better termed slabs or plates are formed and after being rolled
to a certain degree each slab or plate is divided transversely into suitable widths, and
then these transversely divided pieces, which have the fibre or grain across them, are
passed through suitable rolls to reduce and elongate them as required. In order to
work the Invention advantageously and with a moderate extent of plant, it is
advisable to employ apparatus and rolls of sizes suitable for making slabs or plates
which when ready for being transversely divided will be 18 inches or more in width
so that the pieces cut off may be suitable for forming hoop or other pieces of such
sizes as are ordinarily required; 1 do not however restrict myself to such dimensions.
The apparatus and rolling mills may however be of ordinary construction. The
dividing of the slabs or plates may be effected by means of shearing, cutting, or
sawing machines of kinds ordinarily used for such purposes.
The final hoop or other pieces or elongated plates made in the improved manner
herein before described, will be much more suitable for being bended to form tubes,
than ordinary hoop or other pieces having the fibre or grain longitudinal; whilst the
formation of the bars by cutting them from the broad slabs or plates will cause the
finished edges to be much firmer, stronger, and more regular and even, than those of
ordinary hoop or other pieces.
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 preparing of malleable iron for making tubes and other articles, by first
forming broad puddled bars, slabs, or plates, secondly dividing the broad bars, slabs,
or plates transversely, and thirdly rolling out the transversely divided pieces or bars
substantially as herein before described.
Dated this Fourteenth day of December 1887.
EDMUND HUNT,
Applicant's Agent.