Year: 1888

page_text: I, THOMAS EDWARD CADDY of. Wycliffe Street, New Basford in the Borough of
Nottingham, Iron-founder, do hereby declare the nature of this 'invention to be as
follows:
This invention relates to machines for moulding or forming moulds in sand and the
like for casting articles in metal where large quantities of the same article are required,
and it has for its object the improved construction and arrangement of such machines
whereby this operation can be performed in a more expeditious manner than
heretofore.
In carrying out this invention on a suitable framework of a convenient height I
secure a removable plate preferably in a horizontal position; this platè is formed with
an opening or openings corresponding with the shape of the plan of the patterns
from which it is desired to form the moulds; the patterns are carried on a framing
working in slides or equivalent on the underside of the plate and may be raised and
lowered by a lever actuating cams or other convenient mechanism.
When in position for taking a mould the patterns are raised and that portion of
them which it is desirable to mould in one box projects through the opening in the
plate which they accurately fit and then appear to be standing on the plate. A
moulding box having previously been placed on the plate and which may be held in
position by pins on the plate fitting in corresponding holes in the box it is filled with
the material to form the mould and rammed in; the patterns are then withdrawn
through the plate and the box containing the mould removed and replaced by an
empty one and the operation repeated.
In the case of articles which may be moulded in one box such as fire bars, the box
containing the mould may be placed on a prepared sand bed or on a metal plate to
form a chilled surface on the casting if desired, and is at once ready for receiving the
metal.
Where a complete mould has to be formed in two or more part boxes, separate
.moulds would have to be formed for the top and bottom box, where both halves were
not identical the holes in the boxes fitting on pins on the plate securing their accurate
adjustment when placed together.

page_text: Where cores, rods or tubes have to be inserted in the moulds, core prints may be
formed on the patterns in the usual manner, or openings in the ends of the boxes,
or partitions having openings in them to receive the ends of the cores-rods or tubes
may be used..
By withdrawing the patterns through the openings in the plate in the manner
described the edges of the mould are held intact by the plate and the mould is removed
from the machine ready for receiving the metal without subsequent attention.
By using a plate through which the patterns project as described, the sand may be
evenly rammed round the pattern instead of forcing the pattern into the sand in
the usual manner thus producing a better mould. By this means also moulds can
be formed which it would be impossible to produce on existing machines. Of course
where desired the pins may project from the boxes and the holes be in the plate.
Dated this 19th day of Anvil 1888

page_text: I, THOMAS EDWARD CADDY, of Wycliffe Street, New Basford, in the Borough of
Nottingham, Ironfounder, 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 machines for moulding or forming moulds in sand or the
like for casting articles in metal where large quantities of the same article are
required, and it has for its object the improved construction and arrangement of such
machines whereby this operation can be performed in a more expeditious and efficient
manner than heretofore.
It will be best understood by reference to the accompanying drawings in which
Fig. 1 is a front elevation showing moulding box is section, Fig. 2 an end elevation
and Fig. 3 a plan of the machine, and Fig. 4 a vertical cross section of the upper
plate, pattern, and moulding box.
In carrying out this invention on a suitable framing formed by end standards A,
base plate B, upper framing C secured by its ends to the upper ends of the standards A
I place a removable plate D which is secured and adjusted by means of set screws DI
passing through downward extensions with their inner ends bearing on the upper
framing C, the plate Dis formed with an opening or openings corresponding accurately
with the shape of the pattern in plan, of which it is desirable to form a mould.
The pattern or patterns E are secured to a rising and falling bar or platform F
working below the plate D, with its ends guided in slides formed in the end standards A,
it may be raised and lowered by the action of a cam or cam shaped arm G secured
on the shaft. H and acting on the anti-friction rollers I pivotted in the bracket J
secured on the underside of the platform F. The shaft. H is carried in bearings K
secured on the bed plate B and is fitted at the end with a lever handle L of a
convenient length which is operated by hand..
The cam-shaped arm G may he held in its upper position by a catch-piece M the
upper end of which engages with the end of the arm G when in its upper position
and is secured at its lower end on a shaft provided with a handle M and working in
bearings N secured to or formed on the bed plate B.
When in position for moulding the patterns E are raised by the platform F to
which they are secured and. that portion of them which it is desirable to mould in one
box projects through the openings in the plate D which they accurately fit and on
which they appear to be standing. The moulding box O which stands on the plate D
and may be held in position by pins D² secured to the plate D fitting in corresponding
holes in the box O, is then filled with the material forming the mould and rammed
in as much as desired, the patterns E are then withdrawn through the plate D and
the box containing the mould removed and replaced by an empty one and the operation
repeated.
In the case of articles which may be moulded in one box such as fire-bars as shown
in the drawings the box containing the mould prepared as hereinbefore described may
be placed on a sand or other bed, or on a metal plate if it is desired to form a chilled
surface, and is ready for receiving the metal so soon as the necessary runners have
been formed

page_text: To form a mould in two boxes separate patterns would have to be formed for the
top and bottom boxes where the moulds in both were not identical, the holes in the
boxes fitting on the pins D' on the plate D securing their accurate adjustment when
placed together.
When cores or tubes had to be inserted in the mould core prints may be formed on
the mould and the cores inserted in the usual manner, but in some cases, for example
casting tubes in fire bars I preferably form openings in the ends of the moulding
box O also in removable and adjustable end plates O' corresponding to the size of and
the position of the tube in the casting, with this arrangement the tubes have to be
inserted through one of the ends of the moulding box O and to guide the end of the
tube through the mould without injuring it I arrange at one end of the machine a
bar P sliding in bearings secured on the framing It which is secured to the upper
end of the standard A and supported by a stay R¹, or the bearings Q may be secured
to a continuation of the plate 1) or framing C."
When the mould is completed and the pattern withdrawn the sliding bar P. which
is accurately adjusted is pushed through the mould and one end of the tube to be
inserted is placed on the end P1 projecting through the moulding box and the
bar P moved back again with the tube, with this arrangement the tubes are led through
the mould without damaging it and the moulds when removed are ready for receiving
the metal the tube is also held rigidly in its position while casting and the plates Oi
form an end chill for the bars.
By using a plate D through which the patterns project the sand may be evenly
rammed round the pattern instead of forcing the pattern into the sand thus producing
a better mould also by withdrawing the patterns through the openings in the plate 1
in the manner described, the edges of the mould are held intact by the plate, and the
mould is removed from the machine ready for receiving the metal without requiring
such attention as has hitherto been found necessary.
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 : .
1. In a moulding machine, a plate such as D, provided with one or more openings
corresponding with the contour of the pattern or patterns and through which the
patterns may be withdrawn, substantially as and for the purpose described and
illustrated in the accompanying drawings.
2. In a moulding machine the combination with a rising and ing bar or platform
such as t on which the patthe soare natured, of a rising and falling
provided with
openings through which the patterns may be withdrawn substantially as described and
illustrated in the accompanying drawings.
3. In a moulding machine the employment of a sliding bar such as P substantially
as and for the purpose described and illustrated in the accompanying drawings.
4. In a moulding machine the combination with the moulding box of end plates
such as O for supporting cores, tubes, rods, or the like in the mould substantially as
described and illustrated in the accompanying drawings.
5. The complete moulding machine consisting essentially of a bed such as Ca plate
such as D a movable bar or platform such as F and means for raising and lowering
it, and bar P substantially as herein before described and illustrated in the accompanying
drawings.
Dated this 11th day of January 1889.