Year: 1886

page_text: I, JOSEPH ROWLEY of Barn Meadow Iron Works, Dukinfield in the County of
Chester, Iron Founder do hereby declare the nature of this invention to be as follows:-
This invention relates to the moulding of "hat-dishes" which are used in the
pressing and forming of the crowns of hats and consists principally of an improved
matrix for forming or moulding the sand cores upon which the said "hat-dishes"
cast.
are
Hitherto plaster of Paris has been used for this purpose and the object of my
invention is to dispense with the use of such plaster of Paris and to substitute sand
therefor, thereby effecting a saving in expense and also in the time which the plaster
takes to "set" hard.
According to my invention I place the sand (which may be the waste rack sana
from the foundry) in a suitable frame or box hereinafter described, and this sand I
press or ram round the usual wooden block, which corresponds to the internal shape
of the "hat-dish." This block compresses the sand and forms a mould which can be
filled in at once with the sand of which the core is to be made, as being compressed
dry sand it requires no time for setting or drying.
The frame or box which I employ for this purpose is composed of separate parts,
namely, a metal base plate, a loose ring, two moulding boxes with handles, and a loose
plate.
The metal base plate is made with its outer rim curved to the shape of the brim of
the hat and has an oval recess in its upper surface, into which fits a loose metal ring,
upon which the ordinary wooden block is fixed.
Around this block and resting upon the rim of the metal base plate I place the
lower moulding box the lower edge of which is curved to fit the rim of the base plate,
and the upper edge about level with the top of the wooden block, and I press or ram
sand into the space between the wooden block and the bottom moulding box. I then
fit on the top moulding box and fill the same with pressed sand above the crown of
the wooden block and fasten on the top loose plate.

page_text: I next reverse the whole and remove the base plate, loose ring and wooden block,
and I then have a perfect sand mould, in which I proceed to form the sand core,
which is used in the usual manner in casting the "hat-dishes."
The moulding boxes which form the body of the crown may be formed in several
sections divided either vertically or horizontally, thin metal or other partitions being
also provided to divide the compressed sand. When vertical sections are used it will
be possible to form what is known as a "bell-crown" without the use of a block cut
in segments, as the segments of the compressed sand mould can be separated for the
removal of the block, replaced into position for the formation of the core and separated
again for casting the metal "hat-dish."
Hitherto it has been usual in making a set of "hat-dishes" to cast a second core
from the first "hat-dish" and so on and the second "hat-dish" has thus been cast
rather too small and has had to be enlarged by abrasion all round the inner surface
thereof.
To obviate this I sometimes form the sand core in (say) four segments separated by
strips of wood or other suitable material, so that, when one dish has been cast, a
smaller size dish may be made by removing these strips and closing together the
segments, thus forming a smaller core upon which a "hat-dish"
may be cast, which
will only require slightly abrading or polishing into shape at the central parts of the
segments instead of all round..
Or, I take the sand mould in which the first sand core has been made and I lay
inside the bottom or crown an oval piece of sheet rubber or other suitable material of
the required thickness, and round the sides or cylindrical portion of the crown I lay or
fit a broad strip of the same, so as to make a complete lining to the mould of the
thickness required to reduce the size as desired, and in this lined mould I proceed to
form a sand core of a smaller size, which will require a very little dressing and by
these means a set of "hat-dishes " may be moulded much more rapidly than by the
process hitherto employed.
Dahi
1
1000
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: Improved Means for Moulding "Hat-dishes."
I JOSEPH ROWLEY of Barn Meadow Iron Works Dukinfield in the County of
Chester Iron Founder 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
This invention relates to the moulding of "hat-dishes" which are used in the
pressing or forming of the crown of hats, and consists principally of an improved
matrix for forming or moulding the sand cores upon which the said "hat-dishes
cast.
"
are
Hitherto the plaster of Paris has been used for this purpose and the object of my
invention is to dispense with the use of such plaster of Paris and to substitute sand
therefor, thereby effecting a saving in expense and also in the time which the plaster
takes the "set" hard.
The nature of my said invention and the manner in which the same is to be carried
into practical effect will be readily understood on reference to the two annexed sheets
of drawings and the following explanation thereof.
According to my invention I place the sand (which may be the waste or black sand
from the foundry) in a suitable frame or box hereinafter described and this sand I
press or ram round the usual wooden block which corresponds to the internal shape
of the "hat-dish."
This block compresses the sand and forms a mould which can be filled in at once
with the sand of which the core is to be made, as being compressed dry sand it
requires no time for setting or drying.
The frame or box which I employ for this purpose is composed of separate parts, .
namely a metal base plate, a loose ring, two moulding boxes with handles and a loose
plate.
Fig. 1 on Sheet 1. of the annexed drawings is a vertical section of the complete
apparatus including the wooden block.
Fig. 2 is a horizontal sectional view of the same through about the line A B in
Fig. 1.
Fig. 3 is a sectional view of the core for moulding the hat dish.
Fig. 4 shows a bell-crowned block.
Fig. 5 is a sectional plan of a modification hereafter referred to and Fig. 6 shows a
piece of sheet india rubber for lining the said mould to produce a smaller sized core.
The metal base plate a is made with its outer rim curved to the shape of the brim of
the hat and has an oval recess in its upper surface into which fits a loose metal ring
b, b upon which the ordinary wooden block c, c is fixed, by using one or more rings
of varying thicknesses the crown can be made higher or lower as may be desired.
Around this block c, e and resting upon the rim of the metal base plate a, a I place
the lower moulding box d, d the lower edge of which is curved to fit the rim of the
base plate a a and the upper edge about level with the top of the wooden block c c and

page_text: I press or ram sand e, e into the space between the wooden block c; c and the bottom
moulding box d, d. I then fit on the top moulding box f,f.and fill the same with
pressed sand e e¹ above the crown of the wooden block. c, c and fasten on the loose top
plate g, g.
I hext reverse the whole and remove the base plate a, a loose ring b, band wooden
block c, c and I then have a perfect sand mould in which I proceed to form the sand
core h, has shown at Fig. 3 which is used in the usual manner in casting the "hat-
which
dishes."
"
The moulding boxes which form the body of the crown may be formed in several
sections divided either vertically as shown at d; d¹ Fig. 5 or horizontally, thin metal
or, other. partitions being also provided to divide the compressed sand. When vertical
sections are used it will be possible to form what is known as a "bell-crown core see
h¹, Fig. 4 Sheet 2 of the drawings without the use of a block cut in segments as
the segments of the compressed sand mould can be separated for the removal of the
block (see Fig. 5) replaced into position for the formation of the core and separated
again for casting the metal "hat-dish." To facilitate this removal and replacement
I prefer to provide each segment d' with thin metal or other walls as shown at d", d"
Fig. 5.
Hitherto it has been usual in making a set of "hat-dishes" to cast a second core
from the first "hat-dish" and so on, and the second "hat-dish" has thus been cast
rather too small and has had to be enlarged by abrasion all round the inner surface
thereof.
To obviate this I sometimes form the sand core in (say) four segments as shewn at
Fig. 5 by dotted lines separated by strips i, i of wood or other suitable material so
that when one dish has been cast, a smaller sized dish may be made by removing these
strips i, i and closing together the segments thus forming a smaller core upon which a
"hat-dish" may be cast, which will only require slightly abrading or polishing into
shape at the central parts of the segments instead of all round.
Or, I take the sand mould in which the first sand core has been made and I lay
inside the bottom or crown an oval piece of sheet rubber or other suitable material of
the required thickness preferably notched as shown at Fig. 6 and round the sides or
cylindrical portion of the crown I lay or fit a broad strip of the same, so as to make a
complete lining to the mould of the thickness required to reduce the size as desired
and in this lined mould I proceed to form a sand core of a smaller size, which will
require a very little dressing, and by these means a set of "hat-dishes"
moulded much more rapidly than by the process hitherto employed.
may be
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :—
The improved means for moulding "hat-dishes" substantially as hereinbefore
described and illustrated by the drawings annexed.
Dated this 15th day of June 1887.