Improvements in Ingot Moulds and in the Process of Casting Hollow Metal Ingots
Year: 1893

page_text: Date of Application, 12th Apr., 1893
Complete Specification Left, 11th Jan., 1894-Accepted, 17th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Ingot Moulds and in the Process of Casting Hollow
Metal Ingots.
I, WILLIAM WILKINSON, of The Rolling and Wire Mills, Saltley, in the City
of Birmingham, Tube Manufacturer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to the manner in which I construct and arrange the
moulds for casting hollow metal ingots, whereby I am enabled to obviate the
difficulty occasioned by the existing method of pouring the metal into the mould,
which causes the ingots of some copper, brass and other metals to "hang" in the
mould and crack on the surface.
In carrying my invention into effect when constructing a mould for producing
hollow ingots, for use in the manufacture of copper, brass and other metal tubes,
form the mould box in two segments in the usual ordinary manner with a central
semi-circular channel running entirely through each half box of such a size that
when the two portions are placed together and clamped or bolted up, the outside
diameter of the ingot is formed by the two central semi-circular channels thus
brought together. I place a core of sand or other ordinary material right through
the box, and I support each end by means of bits or ring collars with which I close
the end of the central channel, these bits being arranged to fit or close up the ends
of the channels or central chamber and thus to enclose and retain the metal when it
is poured into the mould. The size of the core I vary to suit any particular
thickness of ingot which it may be desired to produce.
I feed the metal into the mould in a special manner for ensuring as far as possible
that the molten metal shall be delivered into the annular space forming the walls
of the ingot beneath and not on to the core; and to further assist the flow of the
metal from my specially arranged "get or inlet mouth I arrange the moulds in an
inclined instead of in a vertical position when casting, thus preventing the whole
weight of the ingot being carried by the upper portion of the metal within the
mould.
"
The "get" for delivering the molten metal into the mould I arrange on one side
of the annular space between the core and the outer portion of the wall space for
the ingot, and I place it at a short distance below the end of the mould box so that
the metal as it is poured into the "get" Hows into the walls underneath the central
core.
This my improved form of "get" I arrange preferably with a box having a
divided or renewable end or head, the "get "passage being formed half in each
portion of the head of the mould box. I vary the form of head and box together
with the method of connecting it to the main mould to suit any particular
requirement.
I prefer to mount my moulds on a frame having an inclined bed surface for
convenience of manipulation, although I obtain advantageous results without any
special inclined frame or bed, by placing each mould in an inclined position with its
head or "get" end raised by any suitable means above the floor on which the other
end of the mould box is resting.
When casting small ingots or when operating in a manner to rapidly produce
ingots in accordance with my present invention, I sometimes arrange two or more
moulds or cores within one box or case, employing the same essential features of
side "get" and inclined casting positions as hereinbefore described when producing
single ingots from the moulds.

page_text: I do not limit the application of my present invention to the production of ingots
for brass or copper tubes only, but I employ the same system of construction and
arrangement of moulds hereinbefore described modified to suit any particular form
of steel or other metal ingot which it may be desired to produce.
Dated this 11th day of April 1893.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Ingot Moulds and in the Process of Casting Hollow
Metal Ingots.
I, WILLIAM WILKINSON, of The Rolling and Wire Mills, Saltley, in the City
of Birmingham, Tube Manufacturer, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention relates to the manner in which I construct and arrange the
moulds for casting hollow metal ingots, whereby I am enabled to obviate the
difficulty occasioned by the existing method of pouring the metal into the mould,
which causes the ingots of some copper, brass and other metals, to "hang" in the
mould and to crack on the surface.
In the accompanying sheet of explanatory drawings-
Figure 1 is a plan, and Figure 2 an end elevation of my improved ingot mould.
Figure 3 is a side elevation, Figure 4 a sectional elevation on the line a b, and
Figure 5 a longitudinal section of the same mould box.
Figure 6 is a front elevation showing one method of securing the box for casting
purposes.
In carrying my invention into effect when constructing a mould for producing
hollow ingots, for use in the manufacture of copper, brass and other metal tubes I
form the mould box shown on the accompanying drawings in two segments A B in
the usual ordinary manner with a central semi-circular channel d, e, running
entirely through each half box, of such a size that when the two portions are placed
together and clamped or bolted up, the outside diameter of the ingot is formed by
the two central semi-circular channels thus brought together. I place a core D of
sand or other ordinary material right through the box, and I support each end by
means of bits, or ring collars E, with which I close the end of the central channel,
these bits E being arranged to fit or close up the ends of the channel or central
chamber and thus to enclose and retain the metal when it is poured into the mould.
The size of the core I vary to suit any particular thickness of ingot which it may
be desired to produce.
.
I feed the metal into the mould in a special manner for ensuring as far as possible
that the molten metal shall be delivered into the annular space F forming the walls
of the ingot, that is, I deliver the metal beneath and not on to the core; and to
further assist the flow of the metal from my specially arranged "get" or inlet
mouth C I arrange the moulds in an inclined instead of in a vertical position when
casting, as shown in Figure 6, thus preventing the whole weight of the ingot being
carried by or suspended from the upper portion of the metal within the mould.
The "get" for delivering the molten metal into the mould I arrange on one
side of the annular space F between the core and the outer portion of the wall
space for the ingot, and I place it at a short distance below the end of the mould
box so that the metal as it is poured into the "get" flows into the walls or under-
neath the central core. This my improved form of "get" I arrange sometimes in
one piece with the other portion of the box or I form it as a box having a divided
or renewable end or head A¹ B', the "get" passage c being provided half in each
portion of the head of the mould box. I vary the form of head and box together

page_text: with the method of connecting it to the main mould to suit any particular
requirement.
"
I sometimes mount or connect my moulds on or to a frame having an inclined bed
surface or, although I obtain advantageous results without any special inclined
frame or bed, by placing each mould in an inclined position with its head or "get"
end raised by any suitable means above the floor on which the other end of the
mould box is resting as shown in Fig. 6.
When casting small ingots, or when operating in a manner to rapidly produce
ingots in accordance with my present invention, I sometimes arrange two or more
moulds and cores within one box or case, employing the same essential features of
side "gets" and inclined casting positions as hereinbefore described when producing
single ingots from the moulds.
I do not limit the application of my present invention to the production of ingots
for brass or copper tubes only, but 1 employ the same system of construction and
arrangement of moulds hereinbefore described, modified to suit any particular form
of steel or other metal ingot which it may be desired to produce.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The construction and arrangement of ingot casting or mould boxes substan-
tially as and for the purposes hereinbefore described and as illustrated in the
accompanying drawings.
2. In a mould box or case for casting metal ingots, the arrangement of a side
delivery passage or feeding "get" c substantially as and for the purposes herein-
before described and as illustrated in the accompanying drawings.
Dated this 11th day of January 1894.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.