Year: 1895

page_text: Date of Application, 12th Dec., 1905
Complete Specification Left. 10th Sept. 1896-Accepted. 10th Oct. 1896
Complete Specification Left. 10th Sept. 1898-Accepted. 10th Oct. 1896

page_text: H. H. are hand-wheels, mounted upon screws h. h. which are attached to the
movable bearings of axle and regulate the height of compression-roller, to suit
differant sizes of moulding boxes. A slow-revolving-motion is given to this roller
by wheel-gear, shafts and pulleys x. x. a. x.
Note. Two sets of sand-compression-rollers may be used, i.e. one at each side
of lifting and turning-over apparatus.
The moulding-box lifting and turning-over part of the machine, primarily,
consists of the standards, I. I. I. I. within which work the rectangular-paralell
lifting-frames i. i. The disk-crank-plates J. J are keyed on to the axle j, and hy
means of the crank-pins L. L and the connecting-rods 1. 1. and the frame-pins M-
together with the tumbling-suspension-bars m. m. (which fall underneath the
trunnions of moulding-boxes) raise and lower them too and from the "trolleys."
A rotary motion is given to the axle j. by wheel-gear, sbafts, and pulleys n. n. n. n.
O. O. is a shaft extending across the machine, and passing thro both sides of
lifting-frames; and having the worm-screw O' keyed upon it-near the centre.
is rotated by the shafts, and wheel-gear P. P. P. and pulleys n. n.
It
When the moulding-boxes are raised to a suitable height, the worm-wheel C¹
keyed on to the trunnion c, engages with the revolving worm screw O. and are
smoothly turned over, and lowered on the trolley.
The pattern-plate, or mold removing is accomplised as follows:
Within the paralell rectangular frames, the vertical-shafts R. R. R. R. are
mounted. Upon these shafts the levers r. r. r. r. are keyed, having angle-bar
swivel-shelves and pins attached. These levers, and shelves, are moved inward, or
outward, by the hand-lever S.
Upon the top-part of moulding-boxes are the projections T. T. T. T. The
edges of pattern-plate, also, project beyond the outer-sides of boxes. Upon the
shelves being moved inward, by the hand-lever S. and the lifting-gear set in
motion, the top shelves come in contact with the projections on the upper-part of
moulding-box-lifting it clear of the pattern-plate.
The lower-shelves then engage with the pattern-plate-raising it clear of the
under-part of the moulding-box, when it is removed by "hand."
The top part of box, is then lowered to its counterpart, secured, and removed
from the machine for casting.
U. is a small air-pump, worked by eccentric from the shaft n. for supplying
compressed-air to the pneumatic-roller, and also, for blowing-" parting"-sand,
blacking," and "coal-dust" on to the face of the "mould."
«
$6
The mode of operation may be described as follows: The moulding box-parts
with pattern-plate in position, are placed on the trolley. Parting" and and
blacking" are blown on to the pattern-plate or "mold" by means of the air-
pump and pipes connected therewith. The "moulding "-sand is now filled into
the upper-part of moulding-box from a "hopper" above, or by hand.
The machine is set in motion, the moulding. boxes pass under the sand-compression-
roller, and to the required position within the framing of the lifting and turning-
over machinery, which (in its turn) being set in motion raises, and turns over the
moulding box, and lowers it on to the trolley. The box-parts now uppermost, are
supplied with sand, as before, and again passed under the compression-roller, and
to the lifting-machinery for the withdrawal of pattern-plate as previously
described.
+86
After withdrawal of pattern-plate and its removal, by hand, together with the
"runners," the parts of moulding-boxes are brought together, securely fastened,
and removed from the machine ready for "casting."
Dated this 30th day of November A.D. 1895.
JOSEPH DANIEL DUCKETT.
WILLIAM BADGER.

page_text: Improvements in Machines for Sand Moulding.
We, JOSEPH DANIEL DUCKETT, Foundry Manager, of 12 Oxford Terrace,
Kelvinside North, in the City of Glasgow, formerly of 7 Dawson Terrace, Carron,
Stirlingshire, and WILLIAM BADGER, Consulting Mechanical Engineer, of
16 Hardy Street, Rotherham, Yorkshire, 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 the expeditious production of sand
moulds in mould-boxes or flasks ready for casting.
In this arrangement the moulding boxes are temporarily fixed upon a machine-
table mounted on wheels which is propelled along the machine bed by rack, screw
or other suitable mechanical motion.
At a suitable position on this machine-bed are fixed strong standards, within
which is mounted a cylindrical sand-compressing pneumatic composite or other
roller having either plain or irregular surface under which the moulding boxes,
when filled with sand, are made to pass. Upon the same machine-bed is fixed,
also, the machinery for lifting and turning over the moulding boxes in order to
receive a supply of sand in the other box part or parts, which is then passed under
the sand-compression roller as described.
The mould boxes instead of being traversed under the roller may be stationary
and the roller adapted to traverse over the mould boxes.
Within the framing of lifting-gear the pattern-plate withdrawal levers are
worked. After withdrawal of the pattern-plate, or patterns, the moulding-box
parts are brought together, secured, and removed for casting.
A small air-pump is preferably attached to the machine-bed to supply com-
pressed air to the pneumatic sand-compression roller.
Pneumatic pressure is also used to "blow" the parting sand, coal-dust, blacking
or other materials on to the face of the mould.
The machinery is driven by suitable belts, gearing, and motive-power.
The invention is illustrated by the accompanying drawings, Fig. 1 of which is a
longitudinal vertical section, Fig. 2 a transverse vertical section and Fig. 3 a plan
of the improved machine.
A cast iron or steel girder gantry or box-bed A, having cone-shaped rails a
formed or fixed upon its upper surface, constitutes the bed of the machine. Tables.
or carriages B of which there are preferably two (one only being shown in the
drawings) are mounted upon grooved wheels b and travel upon the rails a of the
gantry A. Each of the tables B carry mould boxes consisting of two or more
parts 6, 6, one of these parts 61 being temporarily fixed upon the carriages by
clasps and having trunnion axles C fixed to its ends or sides near the centre of
the vertical height of the boxes when these are bound together and lying in their
normal positions. A worm wheel c is keyed or otherwise fixed to one or both ends
of these axles for a purpose hereinafter described. A spindle D extending the
entire length of the bed A of the machine and carried iu bearings therein has a
portion of its length formed as a screw with which engage screw nuts or boxes E
capable of disconnection therefrom by means of the levers and rods e these boxes E
being secured on the undersides of the travelling tables B. The tables B are by
this means traversed to and fro under a cylindrical pueumatic, hydraulic, steam
or other sand-compression roller F. This compression roller, which is preferably
pneumatic and may have one chamber only, or a number of chambers containing
air at the same, or different pressures, has its axle g in bearings in vertical
standards G on the bed A of the machine these bearings being adjustable to

page_text: regulate the height of the compression roller F to suit different sizes of mould
boxes by means of screws hand hand wheels H, and has a slow revolving motion
imparted to it by wheel gear shafts and pulleys x. The roller F has arranged
over the upper part of its circumference a number of hollow steel rollers which
rotate in adjustable bearings formed in quadrant-plates attached to the journals of
the axle of the sand compression roller. These rollers rotate in contact with the
circumference of the compression roller and thereby return it to the true cylindrical
form, and also prevent it from springing when the mould boxes filled with sand
pass under for compression. When the parts 61, 62, or more of the mould box parts
have been bound together in the usual way with the pattern plate between
them and parting-sand and blacking blown on said plate the box b¹ is filled with
sand and traversed by the action of the screw spindle D (which is rotated by belt
pulleys y or otherwise) under the compression roller F until clear thereof, and is
brought between the two sides of a frame I which may be fixed to the bed of the
machine or may as shewn be carried upon wheels which render it adjustable
horizontally upon the machine bed A. Within this framing I rectangular lifting
frames J are situated having wheels ; which bear upon rails on the frame I.
The lifting frames J and mould boxes b', 63, are counterbalanced by weights.
These lifting frames J have their vertical motion imparted to them through crank
discs centred on a transverse shaft and connecting rods, the shaft being
rotated by gearing j,, the gear being capable of disconnection from its source
of power by means of a clutch or other suitable device. Two transverse
shafts carried in bearings on the sides of the lifting frames J have suspension
arms fixed on them which are held in a horizontal position by the action of
studs (fixed on the upright framing 1) on levers 710 secured on the shafts and
when the frames J are raised these arms are released automatically and fall under.
and engage with the trunnion axles C on the mould box b¹ and raise both or more
parts of the box the distance necessary to permit of these being turned over to fill
the box part with sand. The suspension arms are actuated simultaneously by
means of levers j" secured on the shafts and connected together by a rod j¹³.
The turning over of the boxes is effected by a worm K keyed on a transverse
shaft passing through slots in the lifting frames J and carried in bearings in
the frame I, the worm K engaging with the worm wheel e already mentioned as
fixed on one or both of the trunnion axles C on the mould box part 6' and now
brought into gear with the worm K on the transverse shaft. k by the raising of the
lifting frames J. The mould box parts b¹, 6', or more, which are at this time
pivoted on the suspension arms are thus turned over and again lowered on to the
table B, to permit of the box 6 being filled, and the suspension arms are auto-
matically raised to their former horizontal position. The transverse shaft k is
actuated by worm or other gearing k', 1, from a vertical shaft L which is in turn
driven by bevel gearing l, m, from a horizontal shaft M actuated by belt or other
gearing, this shaft M also actuating by means of bevel wheels m¹ the
gearing, arranged to rotate the shaft and discs for raising the lifting
frames J. The two shafts are connected together by levers ;" and a con-
necting rod and act simultaneously. When the sand in the box part 6 has
been acted on by the compression roller F the box is returned within the
lifting frames J in order to remove the pattern plate 6s from the mould. This
is accomplished as follows:-Within bearings on the lifting frames J vertical
shafts N are carried, upon which are fixed levers n pivoted to horizontal_angle-bar
swivel-shelves n¹ so connected together on either side of the framing J as to be
operated simultaneously by means of a hand lever n' to advance the swivel shelves
under projections 65, 66, on the upper box and ou the pattern plate respectively.
The clutch is then operated so as to gear with the worm. and through the
worm wheel on the shaft and the crank discs j and connecting rods the
lifting frames J are raised, the first set of shelves n' acting on the upper box b³
and later the second set acting on the pattern plate separate the mould box
parts and pattern plate 6 as shewn by Figs. 1 and 2. The pattern plate 6* is then

page_text: removed the top box part or parts lowered upon the under one and secured thereto,
the swivel shelves turned back and the mould box with the complete mould
removed from between the frames J.to the casting floor. A small air pump
worked by eccentric from the shaft M or driven by crank and pin connections
fixed upon the compression roller shaft is preferably attached to the machine for
supplying the compressed air to the pneumatic roller through its axle by suitable
ducts, and also for blowing parting sand, blacking, coal dust or other material on
to the face of the pattern plate or mould.
A second pneumatic or other sand-compression roller similar to that shewn
situated on the other side of the lifting frames J may be used and a supplementary
solid roller may be used in conjunction with each of the pneumatic rollers, to act
upon the sand afterwards.
The mode of operation is as follows :-
The moulding box-parts with pattern plate in position are placed on the trolley.
Parting-sand and blacking are blown on to the pattern plate or mould by means of
the air pump and blow pipes connected therewith. The moulding sand is now
filled into the upper part of moulding box from a "hopper" above, or by hand.
The machine is set in motion, the moulding boxes pass under the sand-compression
roller, and to the required position within the framing of the lifting and turning-
over machinery, which (in its turn) being set in motion raises, and turns over the
moulding box, and lowers it on to the trolley. The box-parts now uppermost,
are supplied with sand as before, and again passed under the compression roller,
and to the lifting machinery for the withdrawal of pattern plate as previously
described.
After withdrawal of pattern plate, the parts of moulding boxes are brought
together, securely fastened and removed from the machine ready for casting.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. A machine for sand moulding, the parts of which are constructed, arranged
and combined substantially as described.
2. In a machine for making sand moulds the combination of a travelling table
carrying mould boxes, a machine bed in which a screw spindle or other mechanical
motion is fitted and operated to traverse the table, and a pneumatic or other sand
compression roller or rollers mounted in bearings on the bed, and adapted to
press the sand into the mould boxes, when these are traversed under it or the
rollers traversed over mould boxes substantially as described.
3. In a machine for making sand moulds the combination of lifting frames
actuated by crank discs and connecting rods or otherwise, suspension arms pivoted
on said frames, engaging trunnion axles formed on the parts of the mould box to
raise it, and a transverse spindle and worm or other gearing to effect the turning of
said box when it is desired to fill the other box part or parts with sand, substantially
as described.
4. In a machine for making sand moulds, the combination with the lifting
frames of devices for separating the mould box parts and removing the pattern
plate, said devices consisting of vertical shafts carrying levers to which are pivoted
horizontal swivel shelves adapted to engage with the pattern plate and upper box
part or parts, substantially as described.
5. In a machine for making sand moulds, a pneumatic composite or other roller
or rollers baving one or more chambers, constructed and arranged to press or
squeeze the sand into the mould boxes, substantially as described.
6. In a machine for making sand moulds, a pneumatic, composite or other
roller or rollers having one or more chambers, in combination with form-retaining
rollers constructed and arranged to press the sand into the mould boxes,
substantially as described.

page_text: 7. The combination with a machine for making sand moulds, of a device for
blowing parting sand, coal dust, blacking or other material on the face of the
mould, substantially as described.
Dated this 9th day of September 1896.
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents.
62 St. Vincent Street, Glasgow, Agent for the Applicants.