IMPROVE- MENTS IN COMPOSITE MOULDS FOR MOULDING PLASTIC ARTICLES
Year: 1885

page_text: I SAMUEL BOURNE FURNIVAL of Stoke-on-Trent in the County of Stafford
Manufacturer, do hereby declare the nature of the said invention for "IMPROVE-
MENTS IN COMPOSITE MOULDS FOR MOULDING PLASTIC ARTICLES" to be as
follows that is to say :-
My Invention has for its object improvements in composite moulds for moulding
plastic articles such as china, earthenware and other articles moulded from plastio
inaterial requiring considerable pressure and is for the purpose of producing from
plaster of Paris or other such like substance or powder moulds which will be very
strong and substantial and very enduring in the wearing parts besides being very
accurate in their register and in their continued action.
I make a perforated or other base casting in the form of an annular ring or
square, oblong or other shaped frame of the shape and size of the outside of the
plaster mould required. Upon this base I cast or otherwise securely fasten two,
three, four or more legs with recesses in the top or upper face to receive corre-
sponding projections or dowels upon the legs of the frame. This upper frame is
similar to the lower in all other particulars save the dowels projecting from the
top part.
Now I take one of these frames or foundations and place a ring over it to
protect the outer upper edge the lower edge being formed by the base plate itself
I then make up the outer casing for forming the mould and run into this outer
casing and frame plaster of Paris or other such like material which when set
constitutes with the frame aforesaid a composite mould of a most substantial
accurate and enduring character. The legs before mentioned may be used for
such moulds without the bottom plates or in conjunction with a light internal
frame only.
GEORGE BARKER,
Agent for the Applicant,
77, Colmore Row, Birmingham.

page_text: TATTOO
DIECIFICATION
I SAMUEL BOURNE FURNIVAL of Stoke-on-Trent in the County of Warwick
manufacturer do hereby declare the nature of the said invention for "IMPROVE-
MENTS IN COMPOSITE MOULDS FOR MOULDING PLASTIC ARTICLES" 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:-
My Invention has for its object improvements in composite moulds for moulding
plastic articles such for instance as china earthenware and various other articles
moulded from plastic material requiring considerable pressure and is for the purpose
of producing from plaster of Paris or other such like substances or powder moulds
which will be very strong and substantial and very enduring in the wearing parts
besides being very accurate in their register and in their continued action.
I make a perforated or other baso casting in the form of an annular ring or
square oblong or other shaped frame of the shape and size of the outside of the
plaster mould required. Upon this base I cast or otherwise securely fasten two
three four or more legs with recesses in the top or upper face to receive corre-
sponding projections or dowels upon the legs of the upper frame. This upper
.frame is similar to the lower in all other particulars save the dowels projecting
from the top part.
Now I take one of these frames or foundations and place a ring over it to
protect the outer upper edge the lower edge being formed by the base plate itself.
I then make up the outer casing for forming the mould and run into this outer
casing and frame Plaster of Paris or other such like material which when set
constitutes with the frame aforesaid a composite mould of a most substantial
accurate and enduring character. The legs before mentioned may be used for
such moulds without the bottom plates or in conjunction with a light internal
frame only.
In order that my invention may be clearly understood and more easily carried
into practice I have appended hereunto a sheet of Drawings giving two views of
one of the moulds,
Figure: I. is a sectional elevation of the mould and Figure: 2, is a plan of the
face of the bottom mould A with the upper mould B removed.
Both the top mould B and bottom mould A are built upon a plate C which may
either be solid or made as an annular ring as shown, d are the legs of which there
may be any desired number, according to the size of the mould. These legs & bear
the one upon the other and indeed take the pressure and bear the weight when the
article e is being pressed in the mould.
The dowels serve to keep the register of the mould quite accurate but in some
cases they might not be needed. The rings M are for the purpose of protecting
the soft material of which the moulds are made. The legs in some cases may be
used without the foundation plate C being connected together by a light wire or
other internal frame which would prevent the legs from sinking down when pressed

page_text: together or the legs may be enlarged a little way down to form a self contained
base the object being to obtain reliable and firm faces to register together and to
receive the pressure as a stop when the article is pressed to the proper thickness.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
The improvements in composite moulds of the legs d combined with a plate C
or its equivalent frame made up with the softer material to form the moulds A
and B substantially as herein set forth.
GEORGE BARKER,
Agent for the Applicant,
77, Colmore Row, Birmingham.