A NEW OR IMPROVED MACHINE FOR MAKING MOULDS FOR CASTING METALS to be as follows:
Year: 1884

page_text: I SAMUEL SIDDAWAY of George Street West Bromwich in the County of
Stafford Ironfounder do hereby declare the nature of the said invention for
"A NEW OR IMPROVED MACHINE FOR MAKING MOULDS FOR CASTING METALS
to be as follows:-
"
My invention consists of a hand worked machine for making moulds for casting
metals the parts of the said machine being constructed and combined and worked
substantially in the manner herein after described.
The machine constituting my invention effects the moulding operation by pressure
instead of by the ordinary process of ramming and produces a mould having such
a uniform consolidation or density that very perfect castings are obtained the
moulding patterns being withdrawn from the mould box without injuring the
mould.
The said machine consists essentially of a rising and falling piston or die on the
upper face of which the patterns are affixed. The said piston or die works freely
within a die box or case supported upon two standards or uprights which also
carry the other parts of the machine. On the underside of the piston or die is a
vertical piston rod which works through a hole in a centre plate fitted between
the standards. By means of the said piston rod and centre plate together with the
die box the guiding of the die in its motion is effected and its proper position
preserved.
The rising and falling motion of the piston or die is effected by means of a
crank shaft below the die box working in the standards a strong hand lever being
affixed to each end of the said shaft outside the said standards. By means of links
the piston or die is connected to the crank shaft. The mould box is supported
upon the top of the fixed die box the said mould box being fixed in its position
and covered during the moulding operation by means of a horizontal swinging
cover or cross piece which is firmly held in its place by any convenient fixing down
mechanism.
The machine is used in the following manner :-
The sliding piston or die carrying the patterns being in its lowered position in
the die box a space is left between it and the top of the said die box. The mould

page_text: box is now placed on the die box and filled with sand or loam the space above the
die and die box being at the same time filled with sand or loam. The top of the
mould box having been closed by the swinging cover the die is raised to the top of
the die box by the action of the hand levers and connections described the motion
of the die forcing before it the sand into the mould box.
The sand in the mould box is thereby consolidated and impressed with the
patterns on the die. A firm and perfect mould is thus produced. On reversing the
position of the hand levers the patterns are withdrawn from the mould the mould
.box containing the mould is removed from the top of the die box and the operations
described may be repeated.

page_text: I SAMUEL SIDDAWAY of George Street, West Bromwich in the County of
Stafford Ironfounder, do hereby declare the nature of my Invention for A NEW
OR IMPROVED MACHINE FOR MAKING MOULDS FOR CASTING METALS" and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
My invention consists of a machine for making moulds for casting metals the
parts of the said machine being constructed and combined and worked substantially
in the manner herein after described.
The machine constituting my invention effects the moulding operation by pressure
instead of by the ordinary process of ramming and produces a mould having such
a uniform consolidation or density that very perfect castings are obtained, the
moulding patterns being withdrawn from the mould box without injuring the
mould.
The said machine consists essentially of a rising and falling piston or die on the
upper face of which the patterns are affixed. The said piston or die works freely
within a die box or case supported upon two standards or uprights which also
carry the other parts of the machine. On the underside of the piston or die is a
vertical piston rod which works through a hole in a centre plate fitted between
the standards. By means of the said piston rod and centre plate together with the
die box the guiding of the die in its motion is effected and its proper position
preserved.
The rising and falling motion of the piston or die is effected by means of a
crank shaft below the die box working in the standards, a strong hand lever being
affixed to each end of the said shaft outside the said standards. By means of links
the piston or die is connected to the crank shaft. The mould box is supported
upon the top of the fixed die box the said mould box being fixed in its position
and covered during the moulding operation by means of a horizontal swinging
cover or cross piece which is firmly held in its place by any convenient fixing down
mechanism.
The machine is used in the following manner :-
The sliding piston or die carrying the patterns being in its lowered position in
the die box a space is left between it and the top of the said die box. The mould
box is now placed on the die box and filled with sand or loam, the space above the
die and die box being at the same time filled with sand or loam. The top of the
mould box having been closed by the swinging cover, the die is raised to the top
of the die box by the action of the hand levers and connections described the
motion of the die forcing before it, the sand into the mould box.
The sand in the mould box is thereby consolidated and impressed with the
patterns on the die. A firm and perfect mould is thus produced. On reversing
the position of the hand levers the patterns are withdrawn from the mould, the
mould box containing the mould is removed from the top of the die box and the
operations described may be repeated.

page_text: Figure 1 of the accompanying Drawings represents in plan; Figure 2 in side
elevation and Figures 3 and 4 in cross section, partly in end elevation, a machine
for making moulds for casting metals, the parts of the said machine being con-
structed and combined according to my invention. The machine represented is a
hand worked one but machines constructed according to my invention may be
worked by steam, hydraulic or other power.
In Figures 1, 2 and 3 the rising and falling piston or die is represented in its
raised position, the mould box closed and held down and the-mould formed and in
Figure 4 the said piston or die is represented in its lowered position and the mould
box uncovered.
The same letters of reference indicate the same parts in the several Figures of
the Drawings.
a, a are the uprights or standards of the machine supported by the carriage b, b
so that the machine may be readily moved from place to place; c is the rising and
falling piston or die working in the die box or case d the said die box being
The die box or case d
supported upon the tops of the uprights or standards a, a.
supports the mould box e. Upon the upper face of the piston or die c the
patterns f, fare affixed from which the mould is to be made. Any number of the
said patterns f, fand either of the same or of different kinds may be arranged and
fixed on the face of the piston or die c. The manner in which the rising and falling
piston or die c carrying the patterns works in the fixed mould box or case d will
be understood by an examination of Figures 3 and 4. On the underside of the
piston or die c is a vertical piston rod g which works in a guide hole h in the cross
plate or stay bar i fitted between the standards a, a. The working of the piston
rod g in the hole in the plate i assists the guiding of the die c in the mould
box d.
The rising and falling motion of the piston or die c is effected as follows:-
k is a cross shaft having a crank or arm / upon its middle. The crank shaft k works
in bearings in the uprights or standards a, a and on each end of the shaft, and
outside the standards, is a strong haud lever m. By means of the links n, n the
piston or die c is connected to the crank shaft k; that is, the upper ends of the
links n n are jointed by the cross pin p to the piston rod g and the lower ends of
the said links are jointed by a similar ping to the crank 1. The range of motion
of the piston rod g and piston or die c may be regulated to suit the depth of the
mould being formed by making two or more holes in the crank through any one
of which holes the joint pin q may be passed; r is the hinged swinging cover by
which the mould box e is held down and covered during the moulding operations;
8, t are two screws at opposite sides of the machine supported by the snugs 8², t³ on
the standards a, a. The cover r turns at one end on the screw 8 and has at its
opposite end a catch or hook ³ which can be made to pass onto or embrace the
other screw t. The said cover can either be made to take the open position
represented in Figure 4 and indicated in dotted lines in Figure 1, or the closed
position represented in Figures 1, 2 and 3. When in its closed position, the
cover is held down by the screw nuts u, u binding the cover between them. By
adjusting the screw nuts u, u on the screws 8, t the cover r may be used with
mould boxes of different depths.
I do not limit myself to the horizontal swinging cover and the appliances
represented for covering and holding down the mould box e as the cover may be
otherwise applied and fixed.
In order to use the machine the swinging cover and the sliding piston or die c
carrying the patterns have the positions given to them represented in Figure 4,
that is the cover r is turned aside and the piston or die o is depressed in its die
box, the levers m m having the vertical position represented. In the lowered
position of the piston or die ca space is left between it and the top of the die box d.
The mould box e is now placed upon the die box d and filled with sand or loam
the said sand or loam also filling the space between the piston or die c and the top
of the die box d as represented in Figure 4. Having filled the mould box e it is

page_text: closed by turning the cover r over the said mould box as represented in Figure 3 and
the said cover is fixed down at opposite points by the screw nuts u, u. The mould
box e having been thus covered and fixed in its place the hand levers m, m at
opposite ends of the crank shaft are depressed into the horizontal position
represented in Figures 1. 2 and 3. By this movement of the levers m, m, the
piston or die c, is through the action of the crank and links n n, raised to the top
of the die box d as represented in Figure 3, the said piston or die forcing before it
the sand or loam in the die box d into the mould box e. The sand or loam in the
mould box e together with that which was supplied to the die box d is thereby
consolidated and impressed with the patterns f, f and a firm and perfect mould
produced. After the mould has in this way been formed, the band levers m, m
are raised into the position represented in Figure 4 so as to withdraw the patterns f, f
from the mould, the withdrawal of the patterns leaving the mould uninjured.
The cover r having been released and turned aside the mould box e containing
the mould can be lifted from the top of the die box and the machine is ready to
repeat the operations herein before described.
As the moulding operation is performed by pressure in the manner herein before
described instead of by ramming as usual a very uniform consolidation or density
of the sand or loam is obtained and the production of perfect castings results.
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
First In a machine for making moulds for casting metals the combination of
the rising and falling piston or die c carrying the moulding pattern or patterns,
with the fixed die box or case d, the said piston or die in its rising motion forcing
before it the sand or loam in the die box into the mould box and consolidating the
Band or loam in the said mould box and thereby effecting by pressure the moulding
operation and the falling motion of the said piston or die withdrawing the
moulding pattern or patterns from the mould, the several parts being constructed
arranged and operating substantially as herein before described and illustrated in
the accompanying Drawings.
Secondly The combination or arrangement of the parts herein before described
and illustrated in the accompanying Drawings for working by hand the rising and
falling piston or die c.
Thirdly-The combination or arrangement of the parts herein before described
and illustrated in the accompanying Drawings for covering the mould box and
holding it in its place upon the die box or case during the moulding operation.
Dated this Twenty-third day of March 1885.