Improvements in and connected with Moulds for Casting.
Year: 1889

page_text: Date of Application, 23rd Nov., 1889
Complete Specification Left, 25th Aug.; 1890-Accepted, 27th Sept.; 1890
PROVISIONAL SPECIFICATION.
Improvements in and connected with Moulds for Casting.
We MALCOM COCKBURN, Ironfounder, of Vermont, Falkirk, and PETER TAYLOR,
Pattern Maker of South Alma Street Grahamston, Falkirk, in the County of Stirling,
North Britain, do hereby declare the nature of this invention to be as follows, that is
to say:
Our said invention relates to moulds for casting plates and other articles on the
system known as "plate moulding" and our improvements are specially advantageous
when the pattern plates are of large size.
In carrying out the invention the pattern plate is arranged so that it can be turned
up and over as on hinges. According to one modification the bottom flask, or the one
first rainmed and turned over has formed or fixed on one side of it two or more lugs
made with segmental cylindrical cavities, and the pattern plate is made with lugs
which are on the under side shaped to fit and turn in the said cavities formed in the
lugs of the flask. On their other sides the plate lugs are made with cavities to receive
hinge pins formed on or fixed in lugs upon the upper flask. When the pattern plate
is on the lower flask and the upper flask on the pattern plate, the upper flask can be
turned over without or along with the pattern plate on the same hinge pins, or on
separate parts thereof, or on separate hinge pins formed or fixed in the lugs of the
upper flask. The separate hinge pins may be further outwards on the same sides of
the lugs or they may be on the other sides of the lugs, and in either case special
separate cavities are formed to receive them in the lugs of the lower flask, such
separate cavities being formed sufficiently low or deep to allow the upper flask to
descend close down to the bottom flask after the pattern plate has been removed.
In some modifications there are no separate hinge pins nor separate cavities for
them, but the lugs on the pattern plate are made thicker than the plate; and when
the pattern plute has been removed bushes of suitable form and thickness are placed
in the cavities of the lugs of the lower flask the upper sides of the bushes being
made with small cavities to receive the hinge pins of the upper flask when closed
down on the lower flask. The parts described as on what are hereinbefore referred
to as the lower and upper flask respectively may be transposed.
Dated this Twenty-second day of November 1889.
EDMUND HUNT,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in and connected with Moulds for Casting.
We, MALCOM COCKBURN, Ironfounder, of Vermont, Falkirk, and PETER TAYLOR,
Pattern Maker, of South Alma Street, Grahamston, Falkirk, in the County of Stirling,
North Britain, 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, that is to say :—
Our said invention relates to moulds for casting plates and other articles on the
system known as "plate moulding; "and our improvements which are specially
advantageous when the pattern plates are of large size, are shown on an accompanying
sheet of explanatory drawings.
Figure, 1, is a plan on a small scale of a mould box, and Figures, 2, to 6, are
perspective views of parts, Figure, 7, being a vertical section. In these drawings the
same reference letters are used to mark the same or like parts wherever they are
repeated.

page_text: In carrying out the invention the pattern plate, A, is arranged so that it can be
turned up and over as on hinges. According to one modification the bottom flask, B,
Figures, 2, 3, 5, or the one first rammed and turned over has formed or fixed on one
side of it two or more lugs, C, made with segmental cylindrical cavities, and the
pattern plate is made with lugs, D, which are on the under side shaped to fit and turn
in the said cavities formed in the lugs, C, of the flask, B. On their other sides the
plate lugs, D, are made with cavities to receive hinge pins, E, formed on or fixed in
lugs, F, upon the upper flask, G. When the pattern plate, A, is on the lower flask, B,
as shown in Figures, 2, 3, 5, and the upper flask, G, on the pattern plate, A, the
upper flask, G, can be turned over without or along with the pattern plate, A, on the
same hinge pins, E, or on separate parts theroof, or on separate hinge pins, E, formed
or fixed in the lugs, F, of the upper flask, G. The separate hinge pins, E, may be
further outwards on the same sides of the lugs, F, or they may be on the other sides of
the lugs and in either case special separate cavities are formed to receive them in the
lugs, , of the lower flask, B, such separate cavities being formed sufficiently low or
deep to allow the upper flask, G, to descend close down to the bottom flask, B, as
shown in Figures, 6, 7, after the pattern plate, A, has been removed. In some
modifications there are no separate hinge pins nor separate cavities for them, but the
lugs on the pattern plate, A, are made thicker than the plate as shown in Figure, 3;
and when the pattern plate, A, has been removed bushes, H, Figure, 4, of suitable
form and thickness are placed in the cavities of the lugs, C, of the lower flask, B,
the upper sides of the bushes, H, being made with small cavities to receive the hinge
pins, E, of the upper flask, G, when closed down on the lower flask. The parts
described as on what are herein before referred to as the lower and upper flask
respectively may be transposed.
Having now particularly described, and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
"
In apparatus for making moulds for casting according to the "plate-moulding
system, constructing the pattern plate and the lower and upper flasks, with lugs and
pins serving as hinges on which to turn the pattern plate and upper flask up and over
substantially in the manner and for the purposes hereinbefore described.
Dated this Twenty-third day of August 1890.
EDMUND HUNT,
Applicants' Agent.