IMPROVEMENTS IN MACHINERY FOR MOULDING
Year: 1876

page_text: LETTERS PATENT to Joseph Casstles, of Bolton, in the County of Lancaster,
Foreman Moulder, for tlic Invention of "IMPROVEMENTS IN MACHINERY FOR
MOULDING."
Sealed the 19th January 1877, and dated the 27th July 1876
PROVISIONAL SPECIFICATION left by the said Joseph Casstles at the Office
of the Commissioners of Patents on the 27th July 1876.
JOSEPII CASSTLES, of Bolton, in the County of Lancaster, Foreman Moulder.
"IMPROVEMENTS IN MACHINERY FOR MOULDING."
My Invention is applicable to machines for moulding wheels, pulleys, and other
circular articles; and it consists in an improved mode of connecting the top moulding
box to the centre spindle in order to obtain a true surface in the upper part of the
mould.
The centre spindle is fixed as usual in the face plate or bottom footstep of an
ordinary wheel moulding machine or in the bottom moulding box, the upper part
of the spindle is provided with two bushes, which can be set to the required distance
apart according to the depth of the wheel or other article to be moulded, above
these is a double bush, to the outer portion of which the top moulding box is
secured by set screws or otherwise, when the top moulding box has been rammed
up the inner bush is removed so as to give space for the top moulding box to be
taken off with facility.
When the top moulding box has been reversed the inner bush is replaced and
the strickle is then put in and worked round to make the upper half of the mould
true, the lower part of the mould is made true from the spindle in the ordinary
manner.
'
When the operation is completed the set screws are slackened to release the
bushes, which are then removed and the mould is put together in the usual manner,
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Joseph Casstles in the Great Seal Patent Office on the 25th January 1877.
JOSEPH CASSTLES, of Bolton, in the County of Lancaster, Foreman Moulder.
"IMPROVEMENTS IN MACHINERY FOR MOULDING."
My Invention is applicable to machines for moulding wheels, pulleys, and other
circular articles; and it consists in an improved node of connecting the top moulding
[Price 8d.]

page_text: DOX to the centre spinare in order to obtain a true surface in the upper part of GUC
mould.
"
And in order that my Invention may be fully understood I will {proceed to
describe the accompanying three Sheets of Drawings.
On Sheet 1, Fig. 1 is part of the improved machinery for forming the back or
dummy" of a bovel wheel.
Fig. 2 is a section of the top moulding box and of the apparatus for connecting it
to the centre spindle.
Fig. 3 is a plan of Fig. 2.
Fig. 4 is a section of the top box when turned over with the strickle for finishing
the inside.
Figs. 5 and 6 are two views of the strickle boards put together.
The centre spindle a, shown in Figs. 1 and 2, is fixed as usual in the face plate
or bottom footstep of an ordinary wheel moulding machine, or in the bottom
moulding box. The upper part of the spindle is provided with the two collars b,
shewn detached in Figs. 7 and 8 of Sheet 2, which can be set to the required height
by set screws and to the proper distance apart, according to the depth of the wheel
or other article to be moulded. Above the top collar b, see Fig. 2, is the inner
bush C", shewn detached in Figs. 9 and 10 of Sheet 2, and on the bush c fits the outer
bush d, see Figs. 11 and 12, which is secured to the top moulding box e by four set
screws f, or in any other convenient manner. The outside of the bush & is slightly
tapered to allow it to drop out easily when the mould is finished, and it is inade
with flat surfaces for the nuts of the set screws to abut against.
I wish to observe here that the inner bush c may be whole, as shewn, or in
segments or parts.
The strickle g, shewn in Figs. 1 and 6, for forming the "dummy" in the bottom
moulding box, [partly shewn at e¹, is bolted to a radial arm cast with the bush h,
see Figs. 13 and 14 of Sheet 2, and the strickle i for finishing the top box is bolted
to a radial arm projecting from the bush j, shewn in Figs. 15 and 16 on Sheet 2.
The clips, shewn in Fig. 4 and in Figs. 17 and 18 of Sheet 2, are bolted when
required to the top box e, and they are provided with set screws Z to assist in
holding the centre bush d. The clips are only used for heavy work.
When the top part of the moulding box e has been rammed up the outer bush &
is held firm in its place by means of the bolts or set screws f being screwed up
from the centre of the inside of the moulding box against the flat surfaces on the
outside of the bush d, the nuts of the bolts f screwing a little off the ends and
coming against the bush d.
In moulding a bevel wheel the operation is as follows:-The first operation is to
set the loose collars b on the spindle a to the required distance apart, according to
the depth of the wheel through the cyc, then the back part of the wheel or
"dummy" is formed in sand in the bottom moulding box e¹ by means of the radial
arın / and strickle board g attached working on the spindle a and resting upon
the top collar b, see Fig. 1, this being done the radial arm his removed and the
double bush c, d, is put on to the spindle a, the lower ends of the bushes resting
upon the top collar b, see Fig. 2, the flange of the inner bush c being uppermost.
The top part of the moulding box is then put on and the sand is rainined up in
the usual way, the outer bush & is then fixed firm in its place by means of the
bolts or set screws f, as before described and shewn in Figs. 2 and 3, the inner
bush c is now withdrawn from between the outer bush & and the spindle a, thus
leaving a clearance or space between the outer bush and the spindle, this enables
the workman to lift the top moulding box e off without disturbing the outer
bush d or the spindle. The top box e having been lifted off is now turned over
for finishing. The inner bush c is now replaced into the bush d, but in the reverse
way, so that the projection or flange on the bush c fits into the recess in the outer
bush & thus bearing itself up. The bush j with a radial arm and cleaning board it
attached, as shewn in Fig. 6, is then inserted in the inner bush c, see Fig. 4, and
the top part of the mould is strickled and made as true as if turned in a lathe.

page_text: The teeth are divided and moulded and the bottom moulding box is finished as
usual. Spur wheels can be moulded in a similar manner.
On Sheet 3, Fig. 19 is an elevation of my improvements in apparatus for
moulding fly wheels or other large circular articles, Figs. 20 and 21 are parts of the
same; Fig. 22 is a plan of the fly wheel, shewing the cores for the arms; and
Fig 23 is a section through one of the cores.
In this arrangement the spindle a is supported in the socket m which is secured to
the floor or to a face plate in any convenient manner. When no bottom moulding box
is used the first operation is to prepare the face of the mould or "dummy" for ramming
the top box on, and this is done by the strickle g on the radial arm h, see Fig. 19.
The bushes c and d are then put on the spindle a, as before described in reference
to Sheet 1, and the top box is rammed up and then removed, the collar b is then
taken off and the sand forming the "dummy" is dug away, the bottom face of the
rim is then struck out by the strickle n and radial arm o, shewn detached in Fig. 21,
the boss of which rests upon the shoulder of the spindle a or on a collar.
After the bottom face of the rim has been strickled the board n is removed and
attached to the radial arm j for cleaning the top box, as shown in Fig. 20. The
cores forming the arms are each made in two picces, as shewn in Fig. 23, and they
are laid in between the rim and the boss, as shown in Fig. 22. The outside of the
rini is formed by ramming up a short segment of the rim, and the space between the
cores is filled in with sand to complete the mould. Should the top box be too large
to turn over for finishing the mould, then the cleaning spindle with the strickle is
held up in its place by means of a washer and hook bolt passing through the bush j,
as shewn by dots in Fig. 20, thus enabling the top to be finished overhead as true
as if turned over.
Having thus stated the nature of my Invention, and described the manner of
carrying the same into operation, I declare that I claim the application and use
of the double bushes c and d to machinery for moulding, and the method of fixing
the same, as shewn and described.
In witness whereof, I, the said Joseph Casstles, have hereto set my hand and
seal, this Twenty-third day of January, One thousand eight hundred and
seventy-seven.
JOSEPH CASSTLES. (L.S.)