IMPROVEMENTS IN MAS " PROVISIONAL SPECIFICATION
Year: 1872

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LETTERS PATENT to John Cooper, of Birmingham, in the County
14
of Warwick, Iron Founder, for the Invention of "IMPROVEMENTS IN
MAS
"
PROVISIONAL SPECIFICATION left by the said John Cooper at the
Office of the Commissioners of Patents, with his Petition, on the
31st January 1872.
I, JOHN COOPER, of Birmingham, in the County of Warwick, Iron
Founder, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MOULDING BOXES USED IN MAKING MOULDS FOR CASTING
METALS," to be as follows:-
If
.
In the ordinary method of making moulds for casting metals, moulding
boxes are employed composed generally of two parts fitted together by
guide pins on one of the parts.engaging in holes in snugs on the other
part. One half of the mould is made in one part of the moulding box,
and the other half of the mould in the other part of the said box. By

page_text: this method of making moulds for casting metals a moulding.box is
required for each mould, and when a large number of articles
are to be cast a large stock of the said moulding boxes has to be
kept.
My Invention consists of the following improvements in constructing
and arranging the parts of moulding boxes used for making moulds for
casting metals-I take a moulding box of the ordinary kind and I
provide it with a series of loose fitting linings, the said linings being
formed in two halves and being dropped into the two halves of the
moulding box respectively. Through the sides of the moulding box
screws are passed, by which screws the linings may be fixed in their
place in the moulding box or liberated therefrom at pleasure. Instead
of screws wedges or other fastenings may be employed.
My improved moulding boxes are used in the following manner :-I
form the parts of the mould in the lined half mould boxes by ramming
sand therein in the ordinary way, and I fit the two half mould boxes to
one another by means of the snugs and guide pins described. When
this has been done I relax the screws, wedges, or fastenings employed,
so as to disconnect the mould box from its lining. The mould box may
then be removed, leaving the two half moulds upon one another in their
proper positions, supported by the linings described, and the mould is
now ready to be used in the ordinary way for casting. The said linings
may be made of thin sheet iron or cast iron.
T
By my Invention any number of moulds may be made by the use
.
of one moulding box provided with linings and apparatus for fixing 2
the same according to my Invention.

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WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent; bearing date the Thirty-first day of January, in the year
of our Lord One thousand eight hundred and seventy-two; in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Cooper, Her special licenco
that I, the said John Cooper, my exccutors, administrators, and
assigns, or such others as I, the said John Cooper, my executors,
administrators, and 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, exerciso, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Íslands, and Isle of Man, an Invention for "IMPROVEMENTS IN
MOULDING BOXES USED IN MAKING MOULDS FOR CASTING METALS," upon the
condition (amongst others) that I, the said John Cooper, my exccutors
or administrators, by an instrument in writing under: my, or their, or
one of their hands and seals, 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.
1.
NOW KNOW YE, that I; the said John Cooper, do licřeby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement thereof (that is to say) :-
.
In the ordinary method of making moulds for casting metals, moulding
boxes are employed composed generally of two parts fitted together
by guide pins on one of the parts engaging in holes in snugs on the
other part. One half of the mould is made in one part of the moulding
box, and the other half of the mould in the other part of the said box.
By this method of making moulds for casting metals a moulding box
is required for each mould, and when a large number of articles are to
be cast a large stock of the said moulding boxes fitted with pins and
holes has to be kept.
My Invention consists of the following improvements in constructing and
arranging the parts of moulding boxes used for making moulds for casting.
metals: I take a moulding box of the ordinary kind; but preferably of
less depth; and provide it with a series of loose fitting linings, the said
linings being formed in two halves and being dropped into the two

page_text: halves of the moulding box respectively. Through the sides of the
moulding box screws are passed, by which screws the linings may be
fixed in their place in the moulding box or liberated therefrom at
pleasure. Instead of screws wedges or other fastenings may be em-
ployed.
My improved moulding boxes are used in the following manner :-I
form the parts of the mould in the lined half mould boxes by ramming
sand therein in the ordinary way, and I fit the two half mould boxes to
one another by means of the snugs and guide pins described. When
this has been done and the mould finished, I relax the screws, wedges,
or fastenings employed, so as to disconnect the mould box from its
lining. The fitted box may then be removed, leaving the two half
moulds upon one another in their. proper positions, supported by the
linings described, and the mould is now ready to be clamped together'
and used in the ordinary. way for casting. The said linings may be made
of wrought, common cast, or malleable cast iron.
By my Invention any number of moulds may be made by the use of
one fitted moulding box provided with linings and apparatus for fixing.
the said linings according to my Invention.
Having explained the nature of my Invention, I will proceed to
describe, with reference to the accompanying Drawings, the manner in
which the same is to be performed.
Figure 1 represents in vertical section, and Figure 2 in plan, one part
or half of a moulding box constructed according to my Invention;
Figure 3 represents in elevation, and Figures 4 and 5 in vertical section
(taken at right angles to one another), the other part or half of the said
moulding box; Figures 6 and 7 represent sections taken at right angles
to one another of the said parts or halves of the moulding box brought
together for the making of the mould. The. same letters of reference
indicate the same parts in the several Figures of the Drawings.
a, b, are the two parts or halves of the moulding box, made either of
wood, iron, or other strong metal, and by preference of less depth than the
ordinary moulding box. The part a of the moulding box is provided
with snugs c, c, having holes in them, and the other part b of the
moulding box is provided with guide pins d, d, for engaging with the
said snugs c, c. Passing through one of the sides of each part a, b, of
the moulding box is a screw e (or more than one screw may be used),

page_text: and opposite the said screw is a handlef, by therusét of which and the
screw e the parts of the moulding box may be lifted as therein after
described Each half or part a, b, of the moulding box is provided with
a loose fitting metallic lining marked respectively.g, h; (constituting.one
pair of a set), the said linings g, h, being made either of cast iron;
wrought iron, or other strong metal. The said. loose-fitting; linings vare
fixed in their places in the. halves of the moulding box and liberated
therefrom by means of the screws. este. Or instead of screws the loose
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linings may be fixed in the moulding box by means of wedges inserted
between the box and lining, or other convenient fastenings may be
employed for that purpose..
.
In using a moulding box constructed according to my Invention 'I
take the half moulding box a, g, the parts being arranged in the manner
represented in Figures 1 and 2, and placing it upon the pattern to be
moulded ram sand therein in the ordinary way, so as to form a half
mould. I then invert_the_half moulding box, Figures 1 and 2, so as to
bring the moulded pattern uppermost, and then fit upon it the second
half moulding box, represented in Figures 3, 4, and 5, the two half
moulding boxes being secured together by the engaging of the guide
pins d, d, with the snugs c, c. The two half moulding boxes are thus
brought and secured together, as illustrated in Figures 6 and 7. I then
ram up with sand the second or top part, lift it off the under part, and
withdraw the pattern, finishing the mould in the ordinary way, and
replacing the second half mould upon the first half mould. By now
relaxing the screws e, e, (or the other fastenings employed) the parts b, a,
of the moulding box may be lifted from the linings h, g, by the screws
and handles e, e, f, f, leaving the half moulds upon one another in their
proper positions, supported by the said linings. The mould is now
ready to be clamped together and used in the ordinary way for casting.
The half mould boxes a, b, removed from the linings g, h, can be used
with a second set of linings, and so on. In this way one fitted moulding
box can be used in combination with many sets of linings.
Having now described the nature of my Invention and the manner in
which the same is to be performed, I wish it to be understood that I do
not limit myself to the precise details herein described and illustrated, as
the same may be varied without departing from the nature of my Inven-
tion; but I claim as my 'Invention, the improvements in moulding
boxes used in making moulds for casting metals herein-before described

page_text: and illustrated in the accompanying Drawings, that is to say, the com-
bination with the halves or parts of the moulding box of loose fitting
metallic linings secured to the said parts of the moulding box by screws,
wedges, or other fastenings, the parts of the lined moulding box being
constructed, combined, and used substantially as and for the purpose
described and illustrated.
In witness whereof, I, the said John Cooper, have hereunto
"
set my hand and seal, this Twenty-third day of July, in
the year of our Lord One thousand eight hundred and seventy-
Witness,
RICHARD SKERRETT,
Clerk to George Shaw,
Birmingham.
JOHN COOPER. (L.s:)