IMPROVEMENTS IN THE MANUFACTURE OF PLATED AND GATED INGOTS OF IRON AND STEEL, AND IN THE MOULDS USED FOR THAT PURPOSE
Year: 1873

page_text: LETTERS PATENT to William Moore, Steel Manufacturer, of Sheffield,
in the County of York, for the Invention of "IMPROVEMENTS IN THE
MANUFACTURE OF PLATED AND GATED INGOTS OF IRON AND STEEL, AND IN
THE MOULDS USED FOR THAT PURPOSE."
Sealed the 19th May 1874, and dated the 21st November 1873:
PROVISIONAL SPECIFICATION left by the said William Moore at the
Office of the Commissioners of Patents, with his Petition, on the
21st November 1873.
I, WILLIAM MOORE, Steel Manufacturer, of Sheffield, in the County
of York, do hereby declare the nature of my said Invention for
"IMPROVEMENTS IN THE MANUFACture of Plated and GATED INGOTS OF IRON
AND STEEL, AND IN THE MOULDS USED FOR THAT PURPOSE," to be as
follows:-
mhic Invention relates to an improved construction of moulds used

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Moore in the Great Seal Patent Office
on the 20th May 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
MOORE, Steel Manufacturer, of Sheffield, in the County of York, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of November, in the
year of our Lord One thousand eight hundred and seventy-three, in
the thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said William Moore, Her special
license that I, the said William Moore, my executors, administrators,
and assigns, or such others as I, the said William Moore, my executors,
administrators, or assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE MANU-
FACTURE OF PLATED AND GATED INGOTS OF IRON AND STEEL, AND IN THE MOULDS
USED FOR THAT PURPOSE," upon the condition (amongst others) that I, the
said William Moore, my executors or administrators, by an instrument
in writing under my hand and seal, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Moore, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawings
and to the letters and figures marked thereon, that is to say :-
This Invention relates to an improved construction of moulds used
in casting those ingots of iron and steel combined, or of two qualities
of steel known as plated and gated ingots, whereby a better_manu-
facture or greater certainty of obtaining a perfect welding of the two
metals together is secured.
'

page_text: In constructing an ingot mould for casting single "plated" ingots
the body of the moulds is usually made in two parts, held together in
the ordinary manner with iron rings and wedges. A slide made of
any suitable material (but I prefer to use hard cast-iron or steel) is
made to fit to the tapered sides of the mould, so that when pushed
down at a given position in the mould it cuts off a portion of the
inside space and prevents the entrance of any molten metal from the
other part.
And in order that my said Invention may be fully understood I
shall now proceed more particularly to describe the same, and for that
purpose shall refer to the several Figures on the annexed Sheet of
Drawings; the same letters of reference indicating corresponding parts
in all the Figures.
Figure 1 represents a front elevation of my improved mould for
the more perfect manufacturing of “ plated" and " gated" ingots;
Figure 2, a side elevation, and Figure 3 a plan of the same; Figures
4 and 5 represent front and side elevations respectively of detached
portions of Figure 1.
In constructing an ingot mould for casting single "plated" ingots
the body of the mould is usually made in two parts A, A. In the
case under description each part A forms half the mould, the two
parts A, A, meeting at the joint B; C, C, are iron rings placed round
the mould A, A, and tightening up the same by means of the
wedges D, D, in the ordinary manner. A slide E made of any suitable
material (preferably of hard cast-iron or steel, and seen more par-
ticularly in Figures 3 and 4) is made to fit to the tapered sides of the
mould A, A, so that when pushed down at the desired position in the
latter it cuts off a portion of the inside space thereof, dividing it into
two portions or spaces x and y, as shewn, and preventing the entrance
of any molten metal from one space to the other. The slide E is held
in the required position inside the mould A, A, by a stop or block F
formed on its bottom edge, which bears against a corresponding stop
or block on the bottom of the mould A, A, as seen in Figure 2. Or
in lieu of the stop or block F the slide E may be kept in position by a
tapered pin or plug formed on the centre of its bottom edge, and which
fits into a corresponding hole in the bottom of the mould A, A, or by
any other effectual contrivance. The upper edges of the sides of the
mould A, A, are also provided with notches or lugs. 1, 1, into or

page_text: against which bear corresponding lugs or ears 2, 2, formed on and
projecting from the upper ends of the side edges of the slide E; the said
upper ends extending above the top of the mould A, A, and terminating
in a hole G, by which the slide E can be withdrawn from the mould
when required.
It is important that the slide E should be tapered on its inner side,
or that side next to the main body of the molten metal in the space x
of the mould A, A, for the purpose of its easier withdrawal from the
latter.
"
Figure 6 represents a plan of my improved mould for the more
perfect manufacture of 'gated" ingots. In this arrangement E¹
represents the slide made in the shape required, so as to shut off one of
the corners of the mould A¹, A¹; the said slide being tapered on its
sides and kept in position by a bottom stop; or the slide may be solid,
filling up the corner and top lugs or ears similar to those described for
the slide E in the mould A, A.
In double "plated" ingots I simply employ two slides of the same
construction as that described for single "gated" ingots. Figures
7 and 8 represent finished sections of plated and gated ingots
respectively, the light shading on each Figure indicating iron, and the
dark shading the steel combined therewith. The process of manu-
facturing the "plated" or "gated" ingots by means of these moulds is
thus effected.
The two parts of the mould A, A, (or A¹, A¹) are first secured
together by the rings C, C, and wedges D, D. The slide E (or E¹) is
then dropped into its place in the said mould, and the molten iron or
common steel poured into the largest space x formed therein by the
slide E (or E¹), which is now almost immediately withdrawn and the
steel poured into the smaller and vacant space y of the mould. The
rapidity of the operation ensures a more perfect welding or amalgama-
tion of the two metals than in the old plan, which was to knock off the
rings C, C, and replace one part or side of the mould, during which
operation the side of the ingot was exposed to the action of the cold
air, and a thin skin of chilled metal formed, which in many cases
prevented a perfect weld.
Having now described and particularly ascertained the nature of my
said Invention, and the manner in which the same is or may be used or

page_text: carried into effect, I would observe in conclusion that what I consider
to be novel and original, and therefore claim as the Invention secured
to me by the herein-before in part recited Letters Patent is, the
application and use of a slide in the moulds for casting what are known
as "plated" and "gated" ingots, substantially as and for the purpose
herein-before described and illustrated by the accompanying Drawings.
In witness whereof, I, the said William Moore, have to this my
Specification set my hand and seal, this Sixteenth day of May,
One thousand eight hundred and seventy-four.