Improvements in Cores for use in Casting Ingots.
Year: 1892

page_text: Date of Application, 6th July, 1892
Complete Specification Left, 6th May, 1893-Accepted, 10th June 1893
PROVISIONAL SPECIFICATION.
Improvements in Cores for use in Casting Ingots.
We EDWARD COPE of No. 30 Grey Street Openshaw, Manchester in the
County of Lancaster, Nut and Tube Manufacturer and ALFRED HOLLINGS, of
the same place Works Manager do hereby declare the nature of this invention to
be as follows:-
The invention relates more especially to cores for use when hollow ingots of
large diameter are to be cast. The objects being (a) to obtain a smooth internal
surface in such ingots so as to enable them to be used with advantage in our hot
rolling processes for the manufacture of tubes and other hollow articles, (b) to enable
large masses of metal to be dealt with without injury to the main body or inner
wall of the core, (e) to allow freedom for internal contraction of the hot metal so
as to facilitate obtaining homogeneous castings, and (d) to facilitate cooling of the
metal and core.
Cores under our invention consist, (a) of an outer sheath of thin sheet metal
divided longitudinally which forms the surface of the core with which the molten
metal of the ingot comes into contact, and (b) of an inner wall of thicker metal
perforated, indented or roughened and cut longitudinally at an angle so as to form
an elastic support for the metallic sheath above mentioned.
The said inner wall of the core is coated on the exterior with loam, plumbago, or
other heat resisting material, and is secured at the bottom so that a current of air
may be caused to flow through the centre of the said core.
1003
Per pro J. T. KING,
J. Johnson,
Agent.
COMPLETE SPECIFICATION.
Improvements in Cores for use in Casting Ingots.
We EDWARD COPE of No. 30 Grey Street Openshaw, Manchester, in the
County of Lancaster, Nut and Tube Manufacturer, and ALFRED HOLLINGS of
the same place Works Manager, 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:-
The invention relates more especially to cores for use when hollow ingots of
large diameter are to be cast. The objects being (a) to obtain a smooth internal
surface in such ingots so as to enable them to be used with advantage in our hot
rolling processes for the manufacture of tubes and other hollow articles, (b) to
enable large masses of metal to be dealt with without injury to the main body or
inner wall of the core, (c) to allow freedom for internal contraction of the hot
metal so as to facilitate obtaining homogeneous castings, and (d) to facilitate
cooling of the metal and core.
Cores under our invention consists (a) of an outer sheath of thin sheet metal
divided longitudinally which forms the surface of the core with which the molten
metal of the ingot comes into contact, and (b) of an inner wall of thicker metal
perforated indented or roughened and cut longitudinally at an angle so as to form
an elastic support for the metallic sheath above mentioned.
The said inner wall of the core is coated on the exterior with loam, plumbago or

page_text: other heat resisting meterial, and is secured at the bottom 50 that a current of air
may be caused to flow through the centre of the said core.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a horizontal section, and Fig. 2 a vertical section of an ingot mould
provided with a core constructed in accordance with our invention-a is an outer
sheath of thin sheet metal divided longitudinally at b, c is an inner wall of thicker
metal perforated at d, and cut at e longitudinally and at an angle-f represents
loam, plumbago, or other heat resisting material with which the inner wall c is
coated, and which fills the space between the two walls of the mould. Such
material is firmly held in position by part of it entering the perforations. Instead
of perforations there may be indentations, corrugations, or a surface otherwise
roughened. The compound core above described is fitted to the mould base g by
means of a bayonet joint h, or other suitable fastening, and there is an opening i
in the base of the mould to allow of air flowing up through the core, j, mould.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
Compound cords for use in casting ingots substantially as set forth.
1000
Dated this 5th day
του.
Per pro J. T. KING,
J. Johnson,
Agent.