Improvements in Machinery and Arrangements for Foundry Moulding.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Machinery and Arrangements for Foundry
Moulding.
We, TAYLOR LANG & Co. LIMITED, of Castle Iron Works, Stalybridge, in the
County of Chester, Machine Makers and Ironfounders, and WILLIAM STORRS,
Manager, and WILLIAM RIDYARD, Foreman Moulder, of the same place, do hereby
declare the nature of the said invention, to be as follows:-
Our invention refers more particularly to arrangements and mechanism by
which patterns can be withdrawn or removed from the mould in the sand in
which they are embedded with a better result in the casting than by hand, or
by arrangements and machinery hitherto used, by which improved means not
only can moulding be produced in greater quantity in the same time with less
skilled labour and much greater accuracy of result and less weight in the casting
produced from the same patterns than by either hand or other machine moulding
hitherto known. By our invention the moulds are made in suitable boxes (the
pattern in some cases being placed in a marked or pinned position therein) and
they are then placed on a table opposite suitable points or pins to retain them
in the same relative position to the mechanism below the table which is to operate
thereon.
Under the table there a disc or plate which is secured to the upper end of a
vertical screw which at its lower end screws through a rotary nut in suitable
bearings on the framing, this nut being attached to or forming part of a toothed
wheel gearing with another toothed wheel on a horizontal shaft in suitable bear-
ings on the framing at the outside end of which shaft there are other wheels in
gear with a wheel having a handle by which the screw nut may be rotated in
either direction.
The said plate at the upper head of the screw is guided by suitable rods or bars
or by other means to move vertical and parallel to the longitudinal axis of the
screw.
To the plate, the lower ends of suitable vertical pins are secured in slots
therein, three by preference, the upper ends of which pins pass through slots in
the said table, which slots are to allow of the pins being adjusted to and from
the centre to the most suitable position where their ends are to act upon the
pattern.
When the moulding boxes are in the correct position on the table and the pat-
tern is ready to be withdrawn the screw is rotated and the upper ends of the
lifting pins are simultaneously raised and make a way for themselves through
the sand in the boxes and their upper ends come simultaneously against the
underside of the pattern and force it vertically upwards from the sand leaving
the mould perfect, then the pattern is removed from the ends of the pins upon

page_text: which it is carried which are then screwed down again to withdraw them from
the moulding boxes and the mould is finished.
This system and mechanism for removing patterns from moulds is applicable
for toothed wheels, pulleys and a variety of other patterns, the lifting pins being
suitably arranged in position so that their upper ends will come simultaneously
against the underside of the pattern, and lift it steadily and vertically, keeping it
perfectly horizontal so that the mould is left the true shape and size of the
pattern instead as in hand moulding, in some cases being left larger than the
pattern and more or less untrue to shape.
For some patterns discs or parts are or may be applied against which the upper
ends of the lifting pins may come with certainty.
Where numbers of moulds are to be made from the same pattern lifting plates
with pins in suitable positions may be made for each pattern, and such plates
can be readily secured in a marked or pinned position on the plate at the head
of the screw, and instead of slots in the table plate for the pins to pass through
there may be a hole in the table for a special plate to fit therein for each pattern
to a marked or pinned position having guide holes in it for the lifting pins to
pass through, by which means changes could be readily made from one pattern
to another with certainty and without the trouble of adjustment.
The mechanism for actuating the plate and the lifting pins and the mode of
guiding and arranging it may be varied, and instead of gearing an hydraulic
lifting ram may be used especially for large patterns without departing from our
invention.
Total 41in Waunduanth dan ať Tuna 1900
PETER J. LIVSEY,
Agent.
Improvements in Machinery and Arrangements for Foundry
Moulding.
We, TAYLOR LANG & Co. LIMITED, of Castle Iron Works, Stalybridge, in the
County of Chester, Machine Makers and Ironfounders, and WILLIAM STORRS,
Manager, and WILLIAM RIDYARD, Foreman Moulder, of the same place, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
Our invention refers more particularly to arrangements and mechanism by
which patterns can be withdrawn or removed from the mould in the sand in
which they are embedded with a better result in the casting than by hand or
by arrangements and machinery hitherto used, by which improved means, not
only can moulding be produced in greater quantity in the same time with less
skilled labour and much greater accuracy of result and less weight in the casting
produced from the same patterns than by either hand or other machine moulding
hitherto known. By our invention the moulds are made in suitable boxes (the
pattern in some cases being placed in a marked or pinned position therein) and
they are then placed on a table opposite suitable points or pins to retain them
in the same relative position to the mechanism below the table which is to operate
thereon.
Under the table there is a disc or plate which is secured to the upper end of a
vertical screw which at its lower end screws through a rotary, nut in suitable

page_text: bearings on the framing, this nut being attached to or forming part of a toothed
wheel gearing with another toothed wheel on a horizontal shaft in suitable bear-
ings on the framing at the outside end of which shaft there are other wheels in
gear with a wheel having a handle by which the screw nut may be rotated in
either direction.
The said plate at the upper head of the screw is guided by suitable rods or bars
or by other means to move vertical and parallel to the longitudinal axis of the
Screw.
To the plate, the lower ends of suitable vertical pins are secured in slots
therein, three by preference, the upper ends of which pins pass through slots in
the said table, which slots are to allow of the pins being adjusted to and from
the centre to the most suitable position where their ends are to act upon the
pattern.
When the moulding boxes are in the correct position on the table and the pat-
tern is ready to be withdrawn, the screw is rotated and the upper ends of the
lifting pins are simultaneously raised and make a way for themselves through
the sand in the boxes and their upper ends come simultaneously against the
underside of the pattern and force it vertically upwards from the sand leaving
the mould perfect, then the pattern is removed from the ends of the pins upon
which it is carried which are then screwed down again to withdraw them from
the moulding boxes and the mould is finished.
This system and mechanism for removing patterns from moulds is applicable
for toothed wheels, pulleys and a variety of other patterns, the lifting pins being
suitably arranged in position so that their upper ends will come simultaneously
against the underside of the pattern and lift it steadily and vertically, keeping it
perfectly horizontal so that the mould is left the true shape and size of the pat-
tern instead as in hand moulding, in some cases being left larger than the pat-
tern and more or less untrue to shape.
For some patterns discs or parts are or may be applied against which the upper
ends of the lifting pins may come with certainty.
Where numbers of moulds are to be made from the same pattern lifting plates
with pins in suitable positions may be made for each pattern, and such plates
can be readily secured in a marked or pinned position on the plate at the head
of the screw, and instead of slots in the table plate for the pins to pass through
there may be a hole in the table for a special plate to fit therein for each pattern
to a marked or pinned position having guide holes in it for the lifting pins to
pass through, by which means changes could be readily made from one pattern
to another with certainty and without the trouble of adjustment.
The mechanism for actuating the plate and the lifting pins and the mode of
guiding and arranging it may be varied, and instead of gearing an hydraulic
lifting ram may be used especially for large patterns without departing from our
invention.
Fig. 1, is an elevation of the table and mechanism showing the moulding box
on the table with a pattern of a wheel in it in section and with the lifting pins
down and below the surface of the table.
Fig. 2, is a similar view with the lifting pins in the position in which, the pat-
tern of the wheel has been lifted from the mould and is resting upon the points
of the pins.
Fig. 3, is an end elevation of the table and mechanism, upon that side at which
the crank handle is placed for raising and lowering the pins shown partly in
section, and
Fig. 4, is a plan view of the table without any moulding box upon it.
a, are end stands to the upper ends of which the table a, is secured; a², is a
cross stay extending between and secured to the two end stands a¹.
In this cross stay a², there is a boss ³, having a hole vertically through it for
a vertical screw b, which passes freely through the hole in the boss, and on the

page_text: screw above the boss there is a screw nut formed in the boss of a tangent wheel ¹,
by rotating which, the screw is raised and lowered as its upper end is secured so
as not to rotate, and a disc or plate 2, having notches in its edges to slide
against vertical guide bars 63, secured at their upper ends to the underside of the
table, and if desired their lower ends may be secured to brackets from the cross
stay a².
The tangent wheel 6', on the screw 6, gears with one 64, secured upon a hori-
zontal shaft, having its bearings at its inner end on a bracket from the cross
stay a², and at its outer end in the end stand a', at which end there is a spur
pinion, gearing with a wheel, on a stud gearing with another wheel 8, on
a stud (both studs secured in the end stand) which wheel has the crank
handle 6, by which motion is imparted to the screw nut wheel.
The disc plate 2, secured to the upper end of the vertical screw b, carries the
lower ends of the lifting pins e, which have shoulders upon them so as to be
readily secured when adjusted in radial slots in the plate 62.
The upper ends of the lifting pins 6, pass through corresponding radial slots a¹,
in the table a, see Fig. 4, so that the points of the lifting pins c, can be secured
in position to come against the pattern at the points fixed upon to lift it evenly
and steadily from the sand.
The moulding box. d, is always placed in the same position on the table a, fixed
by means of pins or otherwise, and the pattern d, (especially if the ends of the
lifting pins e, are to come against it at points fixed upon) is placed to a marked
position in the moulding box, and when the sand is properly rammed into the
box and the pattern is ready to be removed, the mould box is placed upon the
table, and the screw nut wheel, is rotated by means of the crank handle 69,
and the pins c, are simultaneously lifted, the points of the pins make their way
upwards through the sand until they come against the pattern and lift it from the
mould as shown in Fig. 2, and when the pattern is removed therefrom the pins c,
are lowered into their first position and the holes left by the pins in the sand of
the mould are filled in and smoothed over.
If moulds are to be made from a different pattern, the lifting pins e, may
require adjusting in the radial slots to suit the new pattern.
If desired a large hole may be formed in the table, and in this hole lids may
be fitted to sink in the hole in the table and rest on a sunk margin therein until
the upper surface of the lid is level with the surface of the table.-In this case
there may be a disc (corresponding to be, but detached therefrom) that will pass
through the hole in the table, and to this dise the lower ends of the lifting
pins e, are secured, the points of which pass through holes in the lid of the table.
The separate disc is secured by a central nut to the disc, to which the upper
end of the screw b, is attached when the separate dise has been adjusted by plac-
ing the lid to come to a marked position on the table a, by a pin or otherwise.
By this arrangement there may be a separate lid, lifting pins and disc to which
the lower end of the pins e, are attached for each pattern to be moulded, the lift-
ing pins in such case being arranged to suit the pattern.
Thus the pattern, lifting pins, lid and disc, can be kept together and when
moulds are required from the pattern, the parts can be readily placed in position
to a known mark without further adjustment.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
-
1. The system or mode of lifting a pattern from a sand mould by pins passing
up through holes in a table upon which the moulding box rests, the points of
the pins passing through the sand of the mould and lifting the pattern therefrom,
substantially as herein before described.
2. The combination and arrangements of mechanism with a table upon which

page_text: the moulding box rests for actuating pins, to lift a pattern from a moulding
box on the table, substantially as hereinbefore described.
3. The combination and arrangement of mechanism substantially as and for the
purpose hereinbefore described and illustrated by the drawings..
Dated this Eighth day of February 1899.
PETER J. LIVSEY,
Agent.