Year: 1888

page_text: Date of Application, 17th Apr., 1888
Complete Specification Left, 10th Jan., 1889
Complete Specification Accepted, 2nd Mar., 1889
We, PHILIP FRANCIS DILLON, of 38, Taylor Street, Savannah, in the County of
Chatham, and State of Georgia, United States of America, Brass Moulder, and
JOHN JOSEPH DOYLE, of 7, Taylor Street, Savannah, aforesaid, Boiler Maker, do
hereby declare the nature of this invention to be as follows:-
The object of our invention is to provide a mould for casting metals, which will
permit of the shrinkage of the casting without subjecting it to strain.
Our Invention consists in a metallic mould having a contractile core and contractile
cope, which will permit of the shrinkage of the casting made in the mould without
danger of straining or cracking it."
In the present case, we shall describe our invention as applied to a mould for
casting the zines of gravity batteries, but we do not limit or confine our invention to
moulds for this particular purpose.
To the base is fitted a hollow core, divided into three equal segments, one segment
carrying one half of the gate. In the segments is formed a rebate for receiving the
cope, and one end of each segment is extended so as to overlap the bevelled free
end of the adjoining segment and the projecting end of each segment is. pivoted
to the base. By means of this arrangement, the segments are permitted to swing
upon the pivots, and thus allow of their contraction to prevent straining the casting
made around the core. Normally the joints between the segments are slightly open
and are held in an open position by the spiral spring inserted within the conical
core and tending to press the segments outward. The cheek rests upon the flanges
of the segments of the conical core and encloses an annular space between itself
and the said core of V-shaped section. The cheek is provided with three right
angled arms which form the under-part of the mould for the arms of the zinc.
To the rebate of the conical core is fitted the cope which is formed of three
segments which are rebated on their under surfaces to receive the connecting pieces
which extend across the joint between the segments and are secured to the segments
by bolts passing through holes in the connecting pieces and slots in the segments.
The segments of the core are provided with hollow arms which fit over the arms of
1

page_text: the cheek. Two of these hollow arms form moulds for two of the supporting arms of
the zinc, while the third arm forms the mould for the third arm of the zinc, which is
provided with a cavity forming the enlargement of the zinc for receiving a binding
screw. One of the segments of the cope carries the remaining half of the gate. The
cope fits around the conical core, and fits into the check. The metal is poured into
the gate, and fills the annular space between the check and the conical core, and as the
metal contracts on cooling, both the conical core and the cope contract.
Dated this 17th day of April 1888.
PHILIP F. DILLON.
JOHN J. DOYLE.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: Improvements in Moulds for Casting Metals.
We, PHILIP FRANCIS DILLON, of 38, Taylor Street, Savannah, in the County of
Chatham, and State of Georgia, United States of America, Brass Moulder, and
JOHN JOSEPH DOYLE, of 7, Taylor Street, Savannah, aforesaid, Boiler Maker, 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
The object of our invention is to provide a mould for casting metals, which will
permit of the shrinkage of the casting without subjecting it to strain.
Our Invention consists in a metallic mould having a contractile core and contractile
cope, which will permit of the shrinkage of the casting made in the mould without
danger of straining or cracking it.
In the present case, we shall describe our invention as applied to a mould for casting
the zines of gravity batteries but we do not limit or confine our invention to moulds
for this particular purpose.
Reference is to be had to the annexed drawings forming part of this specification,
in which figure 1 is a plan view of one part of our improved mould. Figure 2 is a
vertical transverse section, taken on line ea, figure 1. Figure 3 is a perspective view
of the cheek of the mould. Figure 4 is a perspective view of the cope of the mould.
Figure 5 is a perspective view of the contractile core of the mould, shewing same
expanded. Figure 6 is a perspective view of the mould. Figure 7 is a perspective
view of the casting as it comes from the mould. Figure 8 is a top plan view of the
cope of the mould in its expanded position, parts being shewn in section. Figure 9 is
a horizontal section of the contractile core, shewing same in its collapsed position.
Figure 10 is a detail perspective view of one of the segments of the contractile core,
and figure 11 is a section, on line 11-11 figure 8. Similar letters of reference
indicate corresponding parts in all the views.
To the base A is fitted a hollow core B divided into three equal segments a a a¹.
The segment at carries one-half 6 of the gate (. In the segments is formed a rebate c
for receiving the cope D and one end E of each segment is extended so as to overlap
the bevelled free end of the adjoining segment and the projecting end of each segment
is pivoted to the base A by a bolt f. By means of this arrangement of parts, the
segments a a a are permitted to swing upon the bolts and thus allow of their
contraction to prevent straining the casting made around the core. Normally, the
joints between the segments are slightly open, and are held in an open position by the
spiral spring F inserted within the conical core and tending to press the segments a a a¹
outward. The cheek G rests upon the flanges of the segments of the conical core B
and encloses an annular space between itself and the said core, of V-shaped section.
The check G is provided with three right angled arms g which form the under part of
the mould for the arms of the zinc. To the rebate of the conical core B is fitted the
cope D which is formed of three segments which are rebated on their under
surfaces to receive the connecting pieces which extend across the joint between the
segments and are secured to the segments by bolts j passing through holes in the
connecting pieces and slots in the segments. The segments. hhh are provided with
hollow arms kk k' which fit over the arms y of the cheek G. The hollow arms k k form

page_text: moulds for two of the supporting arms of the zinc, while the arm ¹ forms the
mould for the third arm of the zinc which is provided with a cavity forming the
enlargement of the zinc for receiving a binding screw. The segment 2 of
the cope D carries the remaining half of the gate C. The cope D fits around
the conical core, and fits into the cheek G. The metal is poured into the gate C,
and fills the annular space between the cheek and the conical core, and as the
metal contracts on cooling both the conical core and the cope D contract.
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
1. In a contractile metal mould, the combination, with the cheek, of the contractile
core and a contractile cope, substantially as described.
2. In a contractile métal mould, the combination of a core formed of segments a a a
pivotally connected with the base and the cope D formed of segments / 1ª h² and
connecting pieces i, substantially as described.
3. The combination, with the contractile core B and contractile cope D, of the
halves of the gate, substantially as described.
4. In a metallic mould, the combination, with the cheek and cope, of the contractile
core formed of segments a a a¹ pivotally connected with the base, said segments formed
with a rebate c adapted for receiving the cope, substantially as shewn and described.
5. In a metallic mould, the combination, with the cheek and cope, of the contractile
core formed of the segments a a a¹, one end E of each segment extended so as to
overlap the bevelled free end of the adjoining segment, substantially as, and for the
purposes, specified.
6. In a metallic mould, the combination, with the cheek and cope, of the contractile
core formed of the segments a a a¹, one end E of each segment extended so as to
overlap the bevelled free end of the adjoining segment, the extended end E provided
with an aperture to receive a pivot bolt f, the end of the adjoining segment
provided with an elongated slot, the bolt passing through said slot, whereby said
seginents are permitted to swing upon the bolts when contracted, substantially as
shewn and described.
7. In à metallic mould, the contractile core composed of the sections a a a¹, each
section formed with a rebate c and having one end E extended and provided with
a bolt hole and the other end extended and provided with an elongated bolt opening,
whereby the same may be adapted to swing upon the bolts f, as shewn and described.
8. The combination, with the contractile core B formed of segments a a a¹ and
a spring F arranged to press the segments of the core outward, of the contractile
cope D, substantially as shewn and described.
9. In a contractile metal mould, the combination,
core provided with the gate portion b of the
provided with the portion b₁ of the gate C, all
and described.
Dated this 10th day of Jan 1990
with the cheek, of the contractile
gate C. and a contractile cope
arranged substantially as shewn