ROVEMENTS IN THE CONSTRUCTION OF CAST-IRON SLAG BOXES AND STEEL INGOT MOULDS
Year: 1880

page_text: LETTERS PATENT to Miles Cornthwaite and John Cornthwaite, hoth of
Parton, near Whitehaven, in the County of Cumberland, for an Invention
IMPROVEMENTS IN THE CONSTRUCTION OF CAST-IRON SLAG BOXES
AND STEEL INGOT MOULDS,"
of
PROVISIONAL SPECIFICATION left by tho said Miles Cornthwaite and
John Cornthwaite at the Office of the Commissioners of Patents on the
10th November 1880.
MILES CORNTHWAITE and JoпN CORNTIWAITE, both of Parton, near Whitehaven,
in the County of Cumberland. "IMPROVEMENTS IN THE CONSTRUCTION OF CAST
IRON SLAG BOXES AND STEEL INGOT MOULDS."
This Invention relates to improvements in the construction of cast iron sing
boxes or bogies and steel ingot moulds which are used in conveying slag from
blast furnaces, and in the manufacture of steel rails respectively, the object of the
improvements being to render such boxes or moulds less liable to break from
expansion than hitherto, and to effect an economy of labour and expense in fitting
up the boxes or moulds.
In carrying out our improvements we construct the box or mould circular in
we bind the said parts
forin, and a number of parts relatively small, and
together by means of malleable wrought iron bands or hoops, preferably in two
parts with flanges, the two parts of the hoops or bands being held together by
bolts and nuts, the said bands or hoops being placed in suitable grooves east or
formed in flanges on the parts forming the body of the mould.
By this construction of box or mould breakage from expansison is to a great
extent prevented, as the expansion of the bands employed for holding the parts
together allows the whole of the box or mould to expand uniformly, and further,
as the box or mould can be fitted up by an ordinary workman in a short time, we
effect a saving of labour and expense,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by. the said Miles Cornthwaite and John Cornthwaite in the Great Seal
Patent Office on the 14th May 1881.
MILES CORNTHWAITE and JOHN CORNTHWAITE, both of Parton, near Whitehaven,
in the County of Cumberland. "IMPROVEMENTS IN THE CONSTRUCTION OF CAST
IRON SLAG BOXES AND STEEL INGOT MOULDS,"
This Invention relates to improvements in the construction of cast iron slag
boxes or bogies and steel ingot moulds which are used in conveying slag from
blast furnaces, and in the manufacture of steel rails respectively, the object of the
improvements being to render such boxes or moulds less liable to break from
expansion than hitherto, and to effect an economy of labour and expense in Atting
up the boxes or moulds.
In carrying out our improvements we construct the box or mould circular (or
rectangular) in form, and of a number of parts relatively small, and, in the case of
circular boxes, we bind the said parts together by means of malleable wrought iron
bands or hoops, preferably in two parts with flanges, the two parts of the hoops
or bands being held together by bolts and nuts, the said bands or hoops being
placed in suitable grooves cast or formed in flanges on the parts forming the body
of the mould; in the rectangular shaped boxes the parts are held together by
means of rods or bara as hereinafter described.
But to make our Invention better understood we will proceed to describe the
same by reference to the accompanying Drawing, in which Figure 1 is a front
elevation; Figure 2, a vertical section; and Figure 3, a horizontal section on the
line A, B, of Figure 1, shewing a circular cast iron slag box and steel ingot mould
constructed according to our Invention; Figure 4 is a side elevation, Figure 5 a
front elevation, and Figure 6 a plan view of one of the segments of the box;
Figure 7 is a front elevation, Figure 8 a vertical seotion, and Figure 9 a plan
shewing our improvements applied to the construction of a rectangular shaped
slag box or ingot mould. Similar letters in all the Figures represent similar or
corresponding parts.
We will first describe our improvement as applied to the construction of the
circular-form of slag-box or ingot nould shewn in Figures 1 to 6.
,, are the
segments or parts composing the slag box or ingot mould; b, b are the malleable
wrought iron bands or hoops, made preferably in two parts as shewn, for binding
the said segments together; c, c, are the flanges or eyes on the ends of the two
parts formning the band or hoop b; d, d, are the bolts and nuts holding together
the said parts of the bands or hoops b; e, c, are the grooves cast or formed in the
flanges ff, on the segments or parts a; g, g, are hooks pivotting on the bolts d,
one at each side of the slag box, for raising or moving the same.
In the rectangular shaped box, shewn in Figures 7, 8, and 9, the parts a
forming the rectangular slag box or ingot mould are held together by the rods or
bars passing through lugs or eyes c, c, cast on the parts a; the said rods
or bars bare formed with an eye at one end for receiving the opposite end of the
respective rod or bar with which they form right angles; the whole is then
securely fastened and tightened together by the cotters and pins d, d.
By these constructions of boxes or moulds it will be evident that breakage
from expansion is to a great extent prevented, as the expansion of the bands, or
rods, or bars b, employed for holding the parts together allows the whole of the
box or mould to expand uniformly, and further, as the box or mould can be fitted
up by an ordinary workman in a short space of time, a great saving of labour and
expense is effected.
Having thus described our said Invention and the best means with which we

page_text: are acquainted for carrying the came into effect, we wish it to be understood that
we do not confine ourselves to the precise details herein laid down and shewn in
the Drawing, as the same may be varied without departing from the peculiar
character of the Invention, but what we do claim is,―
The construction and employment of cast iron slag boxes and steel ingot moulds,
substantially as and for the purpose. herein before described and represented in
the accompanying Drawing.
In witness whereof, we, the said Miles Cornthwaite and John Cornthwaite,
havo hereto set our hands and seals, this Thirteenth day of May, in the
year of our Lord One thousand eight hundred and eighty one.