Improved Mechanism for Casting and Finishing Stereotype Printing Plates.
Year: 1897

page_text: Date of Application, 12th Aug., 1897
Complete Specification Left, 12th May, 1898- Accepted, 9th July, 1898
PROVISIONAL SPECIFICATION.
Improved Mechanism for Casting and Finishing Stereotype Printing
Plates.
I, GEORGE CROYDON MARKS, of 18, Southampton Buildings, London, W.C.,
Consulting Engineer, (a communication from The Campbell Printing Press and
Manufacturing Company, corporation organised under the laws of the State of
New York, of 1, Madison Avenue, City, County and State of New York,
U.S. America, Manufacturers), do hereby declare the nature of this invention to
be as follows:-
This invention has been especially designed for use in newspaper offices for the
casting and finishing of curved stereotype printing plates.
The present manual operations involved in casting and finishing curved printing
plates are expensive, and require a number of skilled laborers.
In newspaper printing offices, moreover, the present methods of stereotyping
are especially objectionable on account of the time which they require.
An especial purpose of this invention is to eliminate, so far as possible, all
manual operation in the process of stereotyping after the matrix has been made,
up to the production of the finished plate.
The invention consists, therefore, of automatic mechanism, which will act to
automatically cast stereotype printing plates.
It is preferred in most instances to combine with this automatically operating
casting device, mechanism for automatically finishing the cast plate.
By the use of automatic casting and finishing machines, uniformly and
accurately finished plates can be produced more cheaply than has heretofore been
possible, and also considerable saving of the time consumed in the manufacture
can be made.
This can be done because manual operation can be eliminated, and because
a plurality of finished plates can be rapidly cast from the same matrix.
The saving of time is an exceedingly important point in practice, as it will
enable newspaper publishers to keep their forms open for a longer time, so that
later items of news may be reported and inserted without delaying the issue of the
printed newspaper.
The invention consists of various forms of machines for carrying out these
purposes, and a complete casting and finishing machine will be first described.
The matrix is placed in a suitable frame. This frame is then slid into a casting
chamber, which consists of a curved back and a cylindrical core.
Devices are provided so that when the matrix is in place in the casting chamber,
the casting chamber will close.
A pumping device is arranged in connection with the casting chamber,
and, when the casting chamber is closed, the pumping device is operated to force
molten stereotype metal into the casting chamber, so that a plate will be cast on
the cylindrical core from the matrix.
A cooling device, which consists of means for spraying water into the interior
of the cylindrical core is used to cool the plate after the same is cast.
When the plate has been sufficiently cooled, the casting chamber is opened.

page_text: The back of the casting chamber is made in the form of a two-part segment.
The frames which hold the matrix are carried by the ends of this segment, and
when the chamber is opened, the segments are so operated that the matrix will
be unwound and stripped from the surface of the cast plate by its two ends.
Then the cylinder or core is given half a turn.
The cast plate will adhere to the surface of the core, and, by this operation, the
plate will be removed from the casting chamber.
The plate is one-half of the periphery of the cylindrical core, and therefore for
the next casting operation the clean surface of the core, which is turned into the
casting chamber by the removal of the cast plate may be used.
This casting operation may be continued.
When the cast plate has been removed from the casting chamber, the same is
raised by suitable detaching or lifting means on to suitable skids, a lip or edge
being preferably cast on the side of the plate next to the spout connecting to the
pumping mechanism by means of a finish strip which is used in the casting
chamber.
After the plate is lifted from the periphery of the cylinder in this manner, it
is slid along on the skids or ways by a suitable traveller mechanism.
As this movement is imparted to the plate, the rough edge of the plate and the
projecting tail is cut off by means of a rotary cutter which is set in position to do
this.
As the plate is moved forward again by the traveller, it is moved into a dome
or arch, and, by means of a suitable clamping mechanism, the plate is clamped
in this dome or arch.
Arranged at the centre of the dome or arch is a rotary shaft, which carries
a cutter arranged to shave or true out the inside of the plate, and this cutter is
generally provided with small projections so that the ends of the plate may be
also trued off.
Thus the plate is trued on the inside and ends while held in this dome.
When this operation is completed, the clamping mechanism releases the plate,
and the next movement of the traveller moves the plate out as the following plate
moves in.
Thus stereotype plates may be cast and finished.
The mechanism for accomplishing these functions is arranged to work auto-
matically so that these operations will be performed very rapidly and successively.
An automatic stopping mechanism is also provided on the machine so that after
any desired number of plates have been cast, the machine will be automatically
stopped. The pumping mechanism is also provided with a suitable relief.
A first modified form of machine which it is proposed to use in some instances
consists in arranging the mechanism substantially as before described, except
that instead of continuously rotating the cylindrical core, the cylindrical core is
oscillated to remove the cast plate from the casting chamber, and then back again
so that the plates are always cast on the same surface of the core, and in this
modification the segmental back is made in one part.
Further, the flexible matrix is held and supported by means independent of
the back, which independent means are operated to unwind or strip the matrix
from the surface of the cast plate.
In a second modified form of casting machine, a rigid core or cylinder and a
movable back piece or segment are used.
The flexible matrix is mounted in suitable arms or frames so as to fit against the
back when the casting chamber is closed.
When the casting operation is completed and the plate cooled, the back moves
away from the core, and a stripper is passed around between the surface of the
matrix and the cast plate to strip or force the matrix from the cast plate, and this
moving stripper is also utilized to turn the cast plate around the surface of the core,
so that the plate may be delivered from the casting chamber before the parts
resume their original position in which the plate was cast.

page_text: To push the plate from the core, devices are provided inside of the core which,
when the casting chamber is opened will push out through the core, and force the
plate therefrom.
The stripper in this modification is made in the form of a hood, or so that the
same will easily carry the cast plate around the surface of the core, and protect the
matrix from the moving plate.
In this operation, the action of the stripper is substantially like a knife passing
between the matrix and the surface of the cast plate.
In this modification, the back piece is made hollow, so that, if desired, water
can be circulated through the same to cool the cast plate.
A third modified form of the plate casting and finishing machine consists of a
machine in which the core is oscillated to turn the plate from out of the casting
chamber, and the matrix is so controlled from or during the oscillation that the
movement of the core will unwind or strip, or will allow the matrix to unwind or
strip from the type surface of the cast plate.
The casting box or back that is preferably used with this modification comprises
a flanged hinged back, and the matrix is attached to one end of the oscillating
core, the other end passing over a suitable turner as a roller on the end of the back
to a weight.
A suitable device as a cam mechanism is provided to allow the back to turn
from the core so that, as the core is oscillated, the matrix will turn down over the
roll, and thus unwind from the plate, and this oscillation will also remove the
plate from the casting chamber.
In this modification, the finishing device is arranged to trim the cut type edge
of the printing surface of the plate to correspond to the heading that is used; that
is, a tool is provided which will trim the type heading, and the tool is so actuated
as to follow the contour of the heading; and preferably arranged with this type
edge trimming tool is a set of cams, any one of which can be thrown into operation
so that the same tool may be used to trim the type edges of plates with various
headings.
Also in the finishing devices used in this modified form of the machine, knives
are provided on each side of the cutter to trim the ends of the plate close up to
the type.
The fourth modified form of my plate casting mechanism consists in using a
stationary core and a stationary back.
The flexible matrix is secured at one edge to a matrix carrying frame, which is
pivoted concentrically to the stationary core.
After molten metal has been forced into the casting chamber, that is, the
annular space between the stationary core and stationary back, and the plate
cooled, the matrix-carrying frame is turned about its pivots to slide the plate
out of the casting chamber, and during this operation, the matrix is automatically
stripped from the surface of the cast plate by means of suitable cords and weights,
which are secured to the opposite end thereof.
A detent or pawl is arranged to engage the edge of the plate to retain the
same in place when the matrix frame is oscillated back to its original position,
drawing the matrix back into the casting chamber in position for the next casting
operation.
In a fifth modified form of plate-casting and finishing machine, the casting
mechanism is so arranged that two or more plates can be simultaneously cast, and
combined with this casting mechanism is a finishing mechanism capacitated to act
on a single plate, and the mechanisms are so arranged that although the casting
operation takes place intermittently, the finishing operation takes place
continuously.
In other words, two plates are cast at one operation by the casting mechanism,
and the finishing mechanism is geared to operate twice for each casting mechanism,
and the traveller or conveying mechanism is so arranged as to carry one plate, and
then the other through the finishing mechanism.

page_text: The casting mechanism consists of a core and a back with means for holding
two or more matrices in position in the casting box so that two or more plates will
be cast at one operation, the core and the back being made of substantially double
the width of the plate to be used.
A separating strip is preferably arranged to separate the two plates on the
core.
The plate finishing mechanism used in this device is substantially that described
in the first mechanism, except that the same is geared to operate twice for each
casting mechanism, so that the same continues substantially constant in operation,
and the production is doubled only by increasing the size of the casting mechanism
and not the size or parts of the finishing mechanism.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.
COMPLETE SPECIFICATION.
Improved Mechanism for Casting and Finishing Stereotype Printing
Plates.
I, GEORGE CROYDON MARKS, of 18, Southampton Buildings, London, W.C.,
Consulting Engineer, (a communication from The Campbell Printing Press and
Manufacturing Company, corporation organized under the laws of the State of
New York, of 1, Madison Avenue, City, County and State of New York, Manu-
facturers), 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 has been especially designed for use in newspaper offices for the
casting and finishing of curved stereotype printing plates.
The present manual operations involved in casting and finishing curved printing
plates are expensive, and require a number of skilled laborers.
In newspaper printing offices, moreover, the present methods of stereotyping
are especially objectionable on acount of the time which they require.
An especial purpose of this invention is to eliminate, so far as possible, all
manual operation in the process of stereotyping after the matrix has been made,
up to the production of the finished plate.
The invention consists, therefore, of automatic mechanism, which will act to
automatically cast stereotype printing plates.
It is preferred in most instances to combine with this automatically operating
casting device, mechanism for automatically finishing the cast plate.
By the use of automatic casting and finishing machines, uniformly and
accurately finished plates can be produced more cheaply than has heretofore been
possible, and also considerable saving of the time consumed in the manufacture
can be made.
This can be done because manual operation can be eliminated, and because
a plurality of finished plates can be rapidly cast from the same matrix.
The saving of time is an exceedingly important point in practice, as it will
enable newspaper publishers to keep their forms open for a longer time, so that
later items of news may be reported and inserted without delaying the issue of the
printed newspaper.
In the twenty-one sheets of drawings accompanying this specification, a prin-

page_text: A fifth modified form of mechanism is shown in Sheets 19 to 21 inclusive.
In these sheets,
Fig. 43 is a longitudinal, sectional elevation of the complete device,
Fig. 44 is a plan thereof,
Fig. 45 is an end, sectional view through the casting mechanism,
Fig. 46 is a perspective view of the matrix-carrying frame,
Fig. 47 is a detail of one of the cams,
Fig. 48 is a sectional elevation through a part hereinafter termed the "arch,"
and
Figs. 49 and 50 are detail views of the mechanism employed for turning and
locking the casting core or cylinder.
The complete machine shown in the first seven sheets of the drawings will be
first generally described.
The matrix is placed in a suitable frame. This frame is then slid into a casting
chamber, which consists of a curved back and a cylindrical core.
Devices are provided so that when the matrix is in place in the casting chamber,
the casting chamber will close.
A pumping device is arranged in connection with the casting chamber,
and, when the casting chamber is closed, the pumping device is operated to force
molten stereotype metal into the casting chamber, so that a plate will be cast on
the cylindrical core from the matrix.
A cooling device, which consists of means for spraying water into the interior
of the cylindrical core is used to cool the plate after the same is cast.
When the plate has been sufficiently cooled, the casting chamber is opened.
The back of the casting chamber is made in the form of a two-part segment.
The frames which hold the matrix are carried by the ends of this segment, and
when the chamber is opened, the segments are so operated that the matrix will
be unwound and stripped from the surface of the cast plate by its two ends.
Then the cylinder or core is given half a turn.
The cast plate will adhere to the surface of the core, and, by this operation, the
plate will be removed from the casting chamber.
The plate is one-half of the periphery of the cylindrical core, and therefore for
the next casting operation the clean surface of the core, which is turned into the
casting chamber by the removal of the cast plate may be used.
This casting operation may be continued.
When the cast plate has been removed from the casting chamber, the same is
raised by suitable detaching or lifting means on to suitable skids, a lip or edge
being preferably cast on the side of the plate next to the spout connecting to the
pumping mechanism by means of a finish strip which is used in the casting
chamber.
After the plate is lifted from the periphery of the cylinder in this manner, it
is slid along on the skids or ways by a suitable traveller mechanism.
As this movement is imparted to the plate, the rough edge of the plate and the
projecting tail is cut off by means of a rotary cutter which is set in position to do
this.
As the plate is moved forward again by the traveller, it is moved into a dome
or arch, and, by means of a suitable clamping mechanism, the plate is clamped
in this dome or arch.
Arranged at the centre of the dome or arch is a rotary shaft, which carries
a cutter arranged to shave or true out the inside of the plate, and this cutter is
generally provided with small projections so that the ends of the plate may be
also trued off.
Thus the plate is trued on the inside and ends while held in this dome.
When this operation is completed, the clamping mechanism releases the plate,
and the next movement of the traveller moves the plate out as the following plate
moves in.

page_text: Thus stereotype plates may be cast and finished.
The mechanism for accomplishing these functions is arranged to work auto-
matically so that these operations will be performed very rapidly and successively.
An automatic stopping mechanism is also provided on the machine so that after
any desired number of plates have been cast, the machine will be automatically
stopped. The pumping mechanism is also provided with a suitable relief.
The details and parts and gearing will now be specifically described.
The type N is received in the stereotyping room, locked in a chase.
The chase that is preferably employed has a registering pin n near each corner,
and also preferably a groove or projection ¹ running around the four sides
thereof.
The moist flong is laid and beaten on to the type, and is then baked or dried
in any of the usual manners.
The pins n will prick four holes in the flong for the purpose of register, as
hereafter described.
After the flong is baked or dried, the same may be accurately cut to proper size,
the ridge formed by the groove or projection n' serving as an accurate guide for
this operation.
The matrix f, thus prepared, is then placed in a suitable framing or clamping
device.
This framing consists of two side-bars F, which have extending dove-tail
sections, as shown, for a purpose hereinafter described, and connecting these side-
bars are spring strips m, which are secured at the inside and near the ends of each
side-bar.
Projecting from the side-bars are pins m¹, which are arranged to fit into holes
formed in the spring strips.
The matrix is held in place by being placed between the spring strips and
the side-bars, the pins m¹ fitting into the holes formed in the matrix by the
pins n¹ on the chase.
A finishing strip f¹ is secured on the spring strips near one of the side-bars F,
for a purpose hereafter described.
By this means, the matrix can be securely held at its edges in the side-bars,
and the side-bars by means of the dove-tails may be slid into grooves 20 of the
segments D and C hereinafter referred to.
This mechanism is referred to in the claims as
in the chamber."
means for locking the matrix
Other clamping and holding devices may be devised, the one previously described
being a preferred device for this purpose.
in some cases, it is contemplated placing the moist flong in the clamping or
holding device, and beating the flong on to the type, and baking or drying the
flong, while held in the clamping device, thus saving the few seconds necessary
to secure the dried matrix in the clamping device.
The machine for automatically casting and producing the finished plates consists
of a strong framing A, in which the operative parts are arranged.
In this framing are arranged three shafts, 30, 31 and 76, a clutch being arranged
to connect the shaft 31 to the shaft 30 when desired, and the shaft 76 being geared
to turn with the shaft 30 by means of gears 77 and 78.
At the rear side of the machine, a melting-pot or tank G is arranged, and in
this tank a pumping mechanism is placed for forcing the molten metal into the
casting chamber.
This pumping mechanism consists, in the device shown of two pumps H and H¹.
The pumps consists of cylinders 21 and 22, which have suitable inlet ports 210,
and the cylinders connect to the casting chamber by a suitable channel 23 having
a spout 24 with a downwardly extending lip 25, which has a flat end, as shown,
and arranged in the pump cylinders are the pistons h and h¹, which are operated
by the connections hereinafter described.
A suitable heating device, as a gas-pipe g, with various burners, is arranged

page_text: under the melting-pot, and also under the channel 23 so as to keep the metal in
the melting-pot and channel in a molten condition.
When the pump pistons are raised, the metal in the channel 23 will be drawn
back into the pump cylinders, and when the pistons are above the ports 210,
metal will flow into the pump cylinders, from the melting-pot.
When the pump cylinders are depressed, the molten metal in the pump cylinders
will be forced into the casting chamber.
The pump pistons h and h¹ are operated from the shaft 31 by the following
means.
Arranged on the shaft 31 is a bevel-gear 36 which meshes with and drives a
bevel gear 37 secured upon a transverse shaft 38.
On the other end of this shaft 38 is mounted a bevel-gear 40, which meshes
with and drives a bevel-gear 41 secured upon a shaft 42.
Mounted on the shaft 42 is a cam 43, which has a suitable groove 430, fitting
into which groove is a roller 44 mounted on a yoke 46 projecting from the rod 45.
This rod 45 projects through a block 50, which block 50 is mounted in the crank-
arms 52 by means of suitable studs 500.
A nut 51 is screwed on the top of the rod 45. The rod 45 fits loosely into the
block 50, and arranged between the block 50 and a shoulder 49 on the rod 45 is
a spring 47.
By this means a yielding connection is formed between the cam and the crank-
arms 52.
These crank-arms 52 are mounted upon a rock-shaft 53. Mounted on this rock-
shaft 53 are crank-arms 54 and 55, which connect by suitable links 56 and 57 to
the piston rods 58 and 59 of the pumps.
It will be seen that this gearing is so arranged that the pistons will make one
complete reciprocation for each rotation of the shaft 31.
The spring-relief is used so that the molten metal can be forced into the casting-
box, and pressure exerted on the metal therein, which pressure is determined by
the tension of the spring 47.
This mechanism forms an improved pumping device for forcing the molten
metal into the casting chamber.
The casting chamber is formed by a core consisting preferably of part of a
cylinder B, two pivoted segments or partitions C and D, and two end pieces E
and E¹.
The segments or pieces C and D carry the matrix clamping devices, as before
described.
These segments C and D are mounted or pivoted upon a shaft 60 which is
placed in slots 61 in the main framing, and held therein by means of collars, as
shown.
Mounted on the shaft 60 are rollers 62 and 63, which bear on cams 64 and 65,
mounted on the shaft 31.
The segments C and D have projecting arms 66 and 67 which carry rollers 660
and 670, which bear on cams CS and 69, mounted on said shaft 31.
This operating mechanism for the segments is so arranged that during the
casting operation, the segments will support and bring the matrix in position
close up to the periphery of the cylinder B so that, as the molten metal is forced
into the casting chamber, a plate of the desired thickness will be cast.
After the plate has been cast, this operating mechanism will move the matrix
carrying or supporting segments, so as to strip or unwind the matrix from the
surface of the cast plate.
The sides of the segments will first move away from the surface of the cylinder,
to impart an unwinding or stripping movement to the matrix, and so that when the
matrix has been unwound in this manner from the plate, the segments with the
matrix will drop down to substantially the position shown in Fig. 6.
This stripping or unwinding of the matrix from the plate is a very important
point in practice.

page_text: It is impossible to pull the matrix bodily away from the surface of the cast
plate, for, if this was done, the matrix would be spoiled, because the surface of
the matrix would be drawn across and over the raised portions of the plate.
In some cases, the frames or side-bars F may be omitted, and the matrix may
be secured directly to the sides of the pivoted segments C and D.
The spring strips m bearing on the inner face of the matrix will help keep the
matrix in curved form, and will help to strip the matrix from the cast plate.
The rims E and E, which form the ends of the casting chamber, have projecting
studs e, which fit into lugs e¹, carried by the frame.
The rim E is generally arranged rigidly in the lugs c¹ or in the lugs el with a
spring relief, and the rim E¹ is operated to relieve the end of the plate, as hereafter
described, although, in some cases, both end rims may be operated.
The mechanism for operating the end rim E is driven from the shaft 76.
A crank-arm 70 is mounted on a short shaft 71, and this crank-arm 70 engages
the rim El.
Also mounted on the shaft 71 is a crank-arm 72 to which is connected a sliding-
rod 73 having a friction-roller 74 at its end, and also mounted on this rod 73 is
a spring 700, which is arranged to normally keep the roller 74 against a face-
cam 75 mounted on the shaft 76.
This mechanism is so timed that when the segments are raised to close the
casting chamber, the rim E¹ will be pushed inwards, and so that when the
segments are moved away from the periphery of the cylinder, the end partition or
rim E will be moved outwardly, to free the end of the cast plate.
The plate 1' that is cast in this manner will have a tail p, as shown in Fig. 7,
which is formed between the periphery of the cylinder and the lip 25 of the
spout 24.
A shoulder p will also be formed on the plate by the lower end of the lip 25, and
this shoulder pl will form, with the other edge 12 of the plate, accurate guiding
edges so that the plate may be manipulated as hereinafter described.
The front face of the lug 25 is inclined outwardly and downwardly towards the
segment D, so that the plate P can be withdrawn from the spout and the lug 25.
The finish strip f¹, which is used in connection with one of the side bars or
frames F, will form the edge 22 of the plate, and this finish strip will be moved
to clear the plate when the segment C is lowered.
The periphery of the cylinder B has grooves b cut therein, which will form the
working or finishing ribs on the inside of the plate, and which will also form a
means to help in the removal of the plate from the casting chamber, as hereinafter
described.
These grooves b are shown in the sectional view represented by Fig. 5, but are
omitted from the other views for the sake of clearness.
By the mechanism before described, it will be seen that the casting operation
will very rapidly take place.
When the segments C and D are moved upwards, the matrix is brought in
position so that the plate may be cast therefrom, and when the segments move'
away from the periphery of the casting cylinder, the matrix f will be accurately
and nicely stripped or unwound from the type-face of the plate P, and this opera-
tion takes place with the casting of each plate.
If desired, a cooling mechanism may be used to immediately cool the plate
after the same is cast, although this mechanism is not always used.
This cooling mechanism consists of a supply pipe 118, which is connected to any
suitable source of supply, and which projects through one of the journals into the
interior of the cylinder B.
An outlet pipe 119 is arranged to pass through the other journal of the
cylinder B.
The inlet pipe in the inside of the cylinder B is perforated, so as to direct jets of
water on to the interior periphery of the cylinder on which the plate is cast, and the

page_text: outlet pipe 119 is carried down to near the lower part of the inside of the cylinder B
to form a siphon.
An operating cam 120 is arranged on the end of the shaft 31, engaging which is
a roller 121 mounted on a short crank-arm projecting from a rock-shaft 1200.
Also mounted on the shaft 1200 is a crank-arm 122, which is connected by a
rod 123 to a valve 124 in the outlet pipe, and by a rod 125 to a valve 126 in the
inlet pipe.
A spring 127 may be arranged, as shown, to keep the roller 121 against the cam.
This mechanism is so timed that as soon as the plate is cast, the valve in the
inlet pipe 118 will be opened, and the valve in the outlet pipe 119 will be closed.
This will spray water on or flood the inner surface of the cylinder, so that the
periphery of the cylinder which carries the cast plate will be cooled.
As the cylinder B is filled with water, the air contained in the cylinder and the
steam, if any is generated, will be put under more or less pressure.
When enough water has been let into the cylinder to cool the plate, the
valve 126 is closed, and the valve 124 is opened.
This will start the siphon formed by the outlet pipe 119 in operation, and the
siphon will rapidly exhaust, and draw the water from the interior of the cylinder.
By this means, as soon as the plate is cast upon the periphery of the cylinder,
it may be cooled.
After the plate is cast in this manner upon the periphery of the cylinder B,
the cylinder B is turned or rotated to carry the plate out of the casting-box.
The plate will adhere firmly to the periphery of the cylinder by means of the
grooves b, so that, as the cylinder is turned, the plate will turn with the same,
and the plate will be broken from the metal in the spout 24, at or near the end of
the spout, this being the weakest or breaking point.
The plate P will thus havé a tail p which has a rough or ragged edge, and a
finished or nice working shoulder pl.
The purpose of this shoulder is now evident, as the breaking line of the plate,
of course, would be ragged, and could not be easily or nicely used for the purpose
of guiding or directing the plate, as hereinafter described.
The mechanism for rotating the cylinder is driven from the shaft 76, and may
be arranged as follows:-
A crank 80 is mounted on the end of the shaft 76, and connects by rod 81 to a
sector 82 pivoted on a suitable stud.
By this means, the sector 82 will be vibrated forwards and backwards.
This mechanism is shown most clearly in Fig. 3.
The sector 82 meshes with a gear 84, which is loosely mounted on the pro-
jecting hub of the cylinder B, and turning with this gear is a ratchet-plate 85,
which has two teeth 86 and 87. Rigidly secured to turn with the cylinder B
is a pawl-arm 89, which carries a spring-actuated pawl 88, with which the teeth 86
and 87 of the ratchet-plate may engage.
By this means, for every revolution of the shaft 76, the cylinder B will be given
half a revolution.
It will be seen that the cylinder will remain stationary substantially during
one-half of a revolution of the shaft 76, and will be turned during the other
half revolution of the shaft 76.
This cylinder driving mechanism is substantially crank-actuated, and this is a
desirable mechanism for rotating the cylinder, as the same will start the cylinder
slowly in operation, thus easily breaking off the, plate from the metal remaining
in the spout, and will gradually bring the cylinder to a state of rest, thus starting
and stopping the parts without jar.
A locking mechanism is generally used to hold the cylinder in its various
positions and this locking mechanism may be arranged as follows:-
A hub 90 is arranged on one end of the cylinder B, and this hub has two recesses
or sockets 91 and 92.

page_text: A locking roller 93 is carried by an arm 94, which is pivoted on the framing,
and this arm has a projecting rod 95 which fits through a lug 96, also arranged
on the framing, and a spring 97 is arranged on this rod, so as to press the roller 93
into the sockets.
By this means, the cylinder will be held in its various positions.
The use and operation of the cylinder is now apparent.
A plate is cast on the cylinder, and the cylinder is then rotated to remove the
plate from the casting chamber, and after the plate is turned out of the casting
chamber in this manner, the remaining portion of the periphery of the cylinder
may be used to form part of the casting chamber for the next plate.
This forms a very rapid and accurate means for casting and delivering plates
and also it will be seen that a cylinder is a very desirable member for this use
as only part of the periphery is used for each plate, so that the cylinder will not
get very hot in the operation of casting.
After the plate has been moved from the casting chamber by the cylinder in this
manner, it is lifted off from the cylinder by suitable detaching or lifting
mechanism, which may be arranged as follows:-
A lifter-plate L is arranged on a shaft 111, and this lifter has a nose or projection
which will engage the working shoulder p of the plate.
A similar lifter L' is mounted on a shaft 105 to engage the edge 22 of the
plate, and these parts are so arranged and actuated that, when the plate is in
proper position, the lifters will forcibly lift the plate off of the cylinder B.
This lifting mechanism may be operated from the shaft 76, by means of the
following connections; —
A rod 100 having a yoke 101 carrying a roller 102 is arranged to bear on a
cam 103 secured on the shaft 76.
The upper part of this rod is connected to a crank-arm 104 mounted on the
shaft 105.
By this means, the lifter L¹ will be operated..
The other lifter may be operated from this shaft 105 by the following mechanism,
as is shown most clearly in Fig. 4.
A crank-arm 106 is arranged on the shaft 105, and the same is connected by a
rod 107 to a wrist plate or disk, which is loosely mounted on the hub of the
cylinder B.
This wrist-plate also connects by a rod 109 to a crank-arm 110 connected to the
shaft 111, and, by this means, the lifters L' and L will be simultaneously operated
to raise the plate from the cylinder B.
After the plate is lifted from the periphery of the cylinder B in this manner,
it may be slid along the lifters L and L' on to the skids or ways S and S¹ by the
following mechanism:
Mounted in a groove 128 is a traveller or conveyer Z, which has a small pro-
jection or tooth, which is positioned to bear on the rear end of the plate after
the same has been raised by the lifters, and this conveyer or traveller may be
operated by the following gearing from the shaft 30.
A bevel gear 129 is mounted on main shaft 30, and meshes with and engages
a bevel gear 130 secured on the transverse shaft 1300.
On the other end of this transverse shaft 1300 is mounted a crank-arm 131,
to which is connected the rod 132, which rod 132 passes through a suitable
guide 133, arranged on a shaft 134.
The rod 132 has rack-teeth 135 formed thereon, which engage a pinion 136,
secured on said shaft 134.
Also mounted on this shaft 134 is a gear 137, which meshes with rack-teeth 138,
cut in the top of the conveyer Z.
By this mechanism, the conveyer Z will be reciprocated by a crank-actuated
mechanism, which is a desirable mechanism for this purpose, as the same will
gradually commence to move the plate, and will bring the same gradually to a
state of rest.

page_text: By this means, the plate is slid along the lifters L and L³, and the ways S
and S', longitudinally of the cylinder B.
As this movement is imparted to the plate, the rough edge of the plate and the
projecting tail p may be cut off, or this edge of the plate finished by means of a
rotary cutter 148 mounted on a short shaft 147.
Thus, as the plate moves in this direction, its edge will be trued.
If desired, a similar cutter may be placed on the other side of the machine,
so that both sides of the plate may be trued or finished, if desired, but the
edge is generally accurate enough as the same is cast from the finish strip f.
As the plate is moved along in this direction, it will pass into a dome or arch y,
and the plate will be left in this arch, and clamped in position by the following
clamping mechanism, which may be actuated from the sliaft 30.
A rod 139 having a yoke 140 on the end thereof, carries a roller 1400 which
bears on a cam 141 mounted on said shaft 30.
This rod 139 connects by crank-arm 142 to a rock-shaft 143, which has small
arms 144 projecting therefrom, as shown most clearly in Fig. 9.
A clamping strip Sa is arranged in the arch y, so as to be capable of a vertical
movement, and the crank-arms 144 project into recesses 145 in said clamping
strip.
The clamping strip S2 is arranged in line with the skid or way S¹, when in its
lowermost position, so that, as the plate is slid into the dome y, it will be brought
to the position shown in Fig. 9, and when the clamp S2 is actuated, the plate will
be tightly clamped and secured in the dome or arch y.
While in this clamped position, the interior of the plate may be trued out by
the following mechanism, which may be driven from the shaft 30.
156 designates a shaft, which is journalled in the framing, and which is geared
to the shaft 30 by means of gears 157, 158 and 160, the intermediate gear 158
being mounted upon a stud 159.
The shaft 156 is arranged substantially at the centre of the dome or arch y.
Mounted on this shaft 156 is an arm R, which carries a cutter r arranged to
shave or true out the inside of the plate.
The cutter is in its lowermost position when the plate is slid into the dome.
By providing this cutter r, if desired, with small projections, the ends of the
plates may be also trued off, but as these ends are generally accurately cast by
means of the rim E and E', this operation is generally not used.
As soon as the plate is trued out, the clamping mechanism will release the plate,
and at the next movement of the conveyor Z, a gravity-pawl 146 will engage the
rear end of the plate, and will slide the plate out on to a horse H³, upon which
horse, the plate will be held by means of small ridges ³, and this will deliver the
finished plate.
As successive plates are completed and delivered, they will be pushed along
out over the horse H².
While on this horse, the plates may be examined, and touched up by hand,
as is sometimes done.
Thus the entire plate will be cast, finished and delivered without any manual
operation.
It will be seen that the pumping mechanism, the matrix manipulating
mechanism and the cooling mechanism are actuated entirely from the shaft 31,
so that a plate will be produced for each complete revolution of said shaft 31.
The remaining mechanisms are driven either from the shaft 30 or the shaft 76.
The gearing for driving the shaft 30, and from the shaft 30 the shaft 31, may
be arranged as follows:-
26 designates a power shaft, which carries a tight and loose pulley 27 and 28,
by which power may be imparted to the machine.
Turning with the tight pulley is a pulley 149, which is belted to a small
pulley 1490 mounted on a short shaft 151, which shaft carries a pulley 150, which
is belted to a small pulley 154 mounted on the shaft 153.

page_text: Also mounted on this shaft 153 is a bevel gear 1540, which meshes with and
drives a bevel-gear 155 secured upon the end of the shaft 148, which carries the
cutter 147, and by this belting, the cutter will be properly rotated to perform the
function before described.
Mounted on the shaft 26 is a worm 29, which meshes with a worm-wheel 290
secured upon the shaft 30, and by this means, the shaft 30 will be driven.
On the end of the shaft 31 is keyed a section 32 of a single-toothed clutch, and
on the opposing end of the shaft 30 is keyed the other section 320 of said clutch,
which section may be moved forwards and backwards on the shaft 30.
A spring 33 is arranged to keep the movable section of the clutch normally in
engagement with the fixed section.
Engaging the movable section 320 is a yoke 34 which is mounted upon a
shaft 35, on the end of which shaft 35. is arranged a suitable operating lever 117,
by which the operator can start the shaft 31 and the mechanism driven therefrom
in operation.
This handle may be controlled by an automatic stopping mechanism, which may
be timed so that after the desired number of plates have been cast, the shaft 31
will be automatically stopped.
To do this, a worm 112 is arranged on the shaft 31, which meshes with a worm-
wheel 113 secured upon a short, transverse shaft 114.
On the end of this shaft 114 is arranged a disk 115, which has a number of
holes t.
The arm 117 has a projecting arm 116 which extends over said disk 115, to be
in line with the holes t.
A pin T may be placed in any of the holes t. The disk 115 turns within a
numbered ring U.
The lever 117 has any of the usual spring catches v, which is adapted to engage
a notch in a bracket w projecting from the frame, to keep the clutch disengaged.
The pin T is inserted in the hole t which comes opposite to the number corre-
sponding with the number of plates which it is desired to cast.
The worm gearing before referred to is so arranged that one hole t will move
past the arm 115 for each revolution of the shaft 31.
Thus, when the desired number of plates have been cast, the pin T will strike
on the arm 116, and by the connections before described, the clutch will be
disengaged and the shaft 31 automatically stopped, after the desired number of
plates have been cast.
By this mechanism, all that the operator has to do is to set the pin T opposite
the proper number, and start the machine in operation, and the casting mechanism
will be stopped after the desired number of plates has been cast, while the finishing
mechanism will continue to operate and will deliver the last plate cast regardless
of the cessation of the casting operation.
Thus, by the means before described, it will be seen that plates will be rapidly
cast, finished and delivered by the improved machine.
The first modified form of machine will now be described and to follow this
description reference should be had to Sheets 8 and 9 of the drawings. This first
modified form of mechanism consists in a machine arranged substantially as
before described, excepting the cylindrical core is oscillated to remove the cast
plate from the casting chamber, the segmental back is made in one part, and the
flexible matrix is held and supported by means independent of the back, which
independent means are operated to unwind or strip the matrix from the surface
of the cast plate. The parts which are shown in the drawings in Sheets 8 and 9
which are referred to with the same reference letters and numerals used in
describing the first form of machine are substantially the same in construction
and operation as the first machine and need not be again further described at
length. The casting chamber is formed by an annular space between the
oscillating core or cylinder 200 and a movable segment or back piece 201.

page_text: The
Rollers 202 are journalled on studs 203 carried by said movable piece or seg-
ment 201, and said rollers bear on cams 204 secured to the driving shaft 31.
movable piece or segment 201 is guided to move up and down by means of slotted
yokes 205, which fit over the shaft 31 and by the studs 203 which fit into slots 206
in the frame work of the machine. The flexible matrix f is secured at its edges
in independent strips or arms 207 and 208, said strips being connected by spring
bands or strips 209 as illustrated most clearly in Fig. 21.
The arms 207 and 208 are actuated by means independent of the movable
segment or back piece 201 to present the matrix in proper position in the casting
chamber, and to unwind or strip the matrix from the surface of the cast plate.
As shown in Fig. 19, a cam 211 is secured on the end of the driving shaft 31
and engages with a roller 212 journalled on a yoke 213 which connects to an
arm 214 extending from a rock shaft 215. The roller 212 is kept on cam 211 by
means of a spring 216.
The rock shaft 215 is provided with arms 217 which are connected by links 218
to the matrix carrying arm or piece 207. The rock shaft 215 is also provided near
its end with an arm 219 which is connected by an adjustable link 220 with an
arm 221 extending from a rock shaft 222.
The rock shaft 222 is provided with extending arms 223 which are connected
to the matrix carrying strip or arm 208 by means of links 224. In this construc-
tion it will be seen that the arms 217 and 223 and the connecting links 218 and 224
will substantially form toggle levers, which will strip the flexible matrix evenly
and efficiently from the surface of the cast plate without unnecessarily straining
or stretching the matrix.
If desired the arms 217 and 223 may be provided with projecting lugs 225
and 226 which will form stops for holding the matrix when in its lowered position.
Fig. 20 illustrates a form of gearing which may be employed for turning or
oscillating the core or cylinder to remove the cast plate from the casting chamber.
Referring to this figure, 227 designates a cam which is secured to the driving
shaft 76. The cam 227 actuates a roller 228 carried by yoke 229 which is con-
nected to a pivoted sector 230, which meshes with a gear or pinion 231 carried by
the core or cylinder 200.
A spring as 232 may be connected to the yoke 229 and to the frame work of
the machine to hold the roller 228 in engagement with its cam 227.
By means of this construction the core or cylinder 200 may be turned so that
the plate will be presented in position to be engaged by the lifters L-L', which
are actuated to forcibly raise the cast plate from the surface of the cylinder, or if
preferred the lifter arm L may be interposed below the rear edge of the plate so
that as the core or cylinder is oscillated to return to its original position, the plate
will be left in position upon the lifter arin.
In this construction it will be observed that the same surface of the core is always
employed to form part of the casting chamber, and while a core is illustrated
which is substantially cylindrical in form, it is obvious that any form of core may
be used, which shall have a portion of its surface cylindrical in shape to form
part of the casting chamber.
The second modified form of machine will now be described and to forward
this description reference should be had to Sheets 10, 11 and 12 of the drawings.
In this modification a rigid core or cylinder and a movable back piece or segment
are used.
The flexible matrix is mounted in suitable arms or frames so as to fit against
the back when the casting chamber is closed.
When the casting operation is completed and the plate cooled, the back moves
away from the core, and a stripper is passed around between the surface of the
matrix and the cast plate to strip or force the matrix from the cast plate, and this
moving stripper is also utilized to turn the cast plate around the surface of the core,
so that the plate may be delivered from the casting chamber before the parts
resume their original position in which the plate was cast.

page_text: To push the plate from the core, devices are provided inside of the core which,
when the casting chamber is opened, will push out through the core, and force the
plate therefrom.
The stripper in this modification is made in the form of a hood, or so that the
same will easily carry the cast plate around the surface of the core, and protect the
matrix from the moving plate.
In this operation, the action of the stripper is substantially like a knife passing
between the matrix and the surface of the cast plate.
In this modification, the back piece is made hollow, so that, if desired, water
can be circulated through the same to cool the cast plate.
The parts which are shown in the drawings in Sheets 10, 11 and 12, which are
referred to with the same reference letters and numerals used in describing the
first form of machine, are substantially the same in construction and operation as
the first machine, and need not be again described at length.
300 designates the back, 301 the rigid core or cylinder, and 302 the stripper
and remover.
The back 300 comprises a cylindrical body which with the core 301 provides an
annular space forming the casting chamber.
The back 300 has projecting flanges 303 which fit on the edges of the core to
close the ends of the casting chamber.
The back 300 is preferably chambered out as at 304 to provide a chamber
through which water may be circulated, by any suitable means, after the casting
operation to cool the plate.
Suitable guides 305 are provided on the framing A, into which guides 306 on
the back 300 fit, these parts, being so arranged that the back may be moved
towards and away from the centre of the core.
On the driving shaft 31 are mounted
cams 307-307, which bear
rollers 308-308, mounted on a shaft 309, secured on the back as shown.
By this means the back will be raised and lowered.
on
The stationary core or cylinder 301 has projecting arms or journals 310, which
fit into holes in the framing A and which are rigidly secured in place by means
of bolts 311, so that the core will be held stationary.
A shaft 312 is journalled in these extending arms 310.
Journalled on the extending arms 310 are hubs 313, which carry arms 314 to
support and carry the stripper 302.
This stripper 302 is made out of a thin semi-cylindrical piece of metal, and forms
a hood, which extends over the core when the parts are in normal position, as
shown in Fig. 27 of the drawings.
A cam 315 is mounted on the end of the shaft 31 near the end thereof, and is
arranged to vibrate the pivoted segment 316 by means of a roller 317 which fits
into a slot formed in said cam.
A pinion 318 is loosely mounted on the end of the shaft 312 and is held in place
thereon by collar 319.
The pivoted segment 316 meshes with the pinion 318, and the pinion 318 has an
extending arm 321, which carries a spring pressed pawl 322 which pawl is arranged
to act on a tooth formed on disk 323 secured or forming part of the gear 324,
which gear 324 is keyed to the shaft 312, and by this means the shaft 312 will be
turned at the proper time.
The gear 324 meshes with a pinion 325 mounted on a shaft 326, and on the
other end of the shaft is mounted a pinion 327 which engages a gear 328 keyel
to the left-hand hub 313,
Mounted on the other end of the shaft 312 is a gear 329, which meshes with a
pinion 330 mounted on a shaft 331, which also carries a pinion 332, which pinion
engages a gear 333 mounted on the other hub 313.
By this means it will be seen that as the shaft 312 is turned, the stripper 302
will be turned in unison therewith.

page_text: Mounted on the shaft 312 inside of the core are suitable cams 334, which bear
against rollers 335 mounted on shafts 336, which project through the core, as
shown.
These shafts 336 are mounted in suitable pockets 337 in which springs 338 are
arranged to bear on shoulders 339 on said shafts, and on the bottom of the
pockets.
This mechanism will act to start or free the cast plate from the surface of the
core at the proper time.
A catch or pawl 340 may be used to keep the stripper 302 in its normal position.
The gearing before described is arranged to turn the shaft 312 and the
stripper 302 in unison, and hold them stationary during the casting operation.
The matrix f is mounted in two suitable brackets or frames 341 and 342 as
shown, the frame 341 having a tapered car 343, so that the stripper can easily
enter between the same and the surface of the cast plate.
The frames that carry the matrix are supported by suitable shafts 344, which are
arranged in pockets 345, and springs are used to keep the matrix carrying arms
or frames normally against the surface of the core, these springs being arranged
to bear on shoulders 346 of the shafts 344 and against the bottoms of the
pockets 345.
The forward or entering end of the stripper is somewhat pointed as at 347, so
that the stripper will easily enter between the matrix and the cast plate, and the
other end of the stripper is formed with a false spout 348, which, when the stripper
is in its normal position, will form a continuation of the spout 24, so that the
metal will be directed into the casting chamber.
The core is slotted near the top as at 349, so that the conveyor Z may fit in under
the plate, and draw the plate from off the surface of the core.
The tooth on the end of the conveyer is made in the form of a pawl arranged
to be kept norinally up by gravity.
The rack 138 in this modification is preferably arranged on the under side of
the conveyer Z.
Suitable skids or ways 350 are arranged in line with the core so that the con-
veyer can slide the plate laterally from off of the core, so that the plate will be
delivered, substantially as before described.
The bottom of the core is made somewhat larger that the top of the core as
shown, so that the plate can have the ordinary grooves cast therein, and so that
the plate, when relieved, can be easily turned around the surface of the core.
The operation of this modification is as follows:-
The parts are shown in normal position in Fig. 24, and with a plate as just
cast.
After the plate has solidified sufficiently, the back 300 will drop and the
stripper 302 will start in operation.
The point of the stripper will force the frame 341 away from the core.
This will carry the edge of the matrix away from the edge of the cast plate so
that the point of the stripper can enter between the matrix and the surface of the
cast plate.
As the stripper continues in its revolution, it will nicely peel or strip the matrix
from the surface of the cast plate, as indicated in Fig. 25.
When the end of the stripper strikes against the edge of the plate the pins or
shaft 336 in the interior of the core will start the plate from the surface of the
core and the continued revolution of the stripper will turn the plate bodily around
the surface of the core, the false spout of the stripper forming a projection which
will push the plate around this way.
It will be seen that the plate will be constrained to move in this pathway as the
stripper will envelope the same and protect the matrix from being hit by the
moving plate.
It will be seen that the action of the stripper is like a knife passing between the

page_text: matrix and surface of the cast plate, and other devices and parts may be used to
actuate the stripper without departing from the scope of the invention.
It will be seen that the gearing at the left of Fig. 23 for turning the stripper
is arranged below the centre of the shaft 312 so that the plate can pass laterally
out over the same.
It will also be seen that the gearing at the right is arranged above the centre,
so that the matrix can be placed in position in the machine below the centre of
the core.
This device or modification will be found advantageous in use where it is
necessary to forcibly and easily strip the matrix from the surface of the cast
plate without putting any end strain or tortion upon the matrix.
The third modified form of machine will now be described, and to follow this
description, reference should be had to Sheets 13, 14 and 15 of the drawings.
This modified form of machine consists of a plate casting and finishing machine
in which the core is oscillated to turn the plate from out of the casting chamber,
and the matrix is so controlled from or during the oscillation that the movement
of the core will unwind or strip, or will allow the matrix to unwind or strip from
the type surface of the cast plate.
The casting box or back that is preferably used in this modification comprises
a flanged hinged back, and the matrix is attached to one end of the oscillating
core, the other end passing over a suitable turner as a roller on the end of the back
to a weight.
A suitable device as a cam mechanism is provided to allow the back to turn
from the core, so that, as the core is oscillated, the matrix will turn down over the
roller, and thus unwind from the plate, and this oscillation will also remove the
plate from the casting chamber.
In this modification, the finishing device is arranged to trim the cut type-edge
of the printing surface of the plate to correspond to the heading that is used,
that is, a tool is provided, which will trim the type heading, and the tool is so
actuated as to follow the contour of the heading; and preferably arranged with
this type edge finishing tool is a set of cams, any one of which may be thrown into
operation, so that the same tool may be used to trim the type edges of plates with
various headings.
Also in the finishing devices used in this modified form of the machine, knives
are provided on each side of the cutter to trim the ends of the plate close up to
the type.
Referring now in detail to the drawings, where the same references are used
as in the principal form and first modified form of the machine, the parts are
substantially the same in construction and operation, and need not be herein
particularly described.
The back 400 is pivoted or hinged to the main frame by means of suitable
pivots 401, at a point or line so that, when the same is turned, it will easily swing
clear of the oscillating core, and the same has suitable flanges 402, which fit to
the ends of the core to form the casting chamber.
The back 400 also carries a suitable roller 403, over which the matrix is led.
The core 404 preferably consists of a cylindrical segment mounted on bearings
which are journalled in the framing A.
The core carries a clip 405 into which the edge of the matrix may be inserted
and secured, as shown in Fig. 36.
This clip 405 has arms which extend beyond the ends of the core, and which
are pivoted to the core by suitable studs 406, and also coacting with these arms
are stops 407 arranged so that the clip can be turned about its pivots in one
direction.
The matrix is made long enough, or has suitable flexible strings or bands 408
attached thereto, so that the same will extend over the roll 403 to connect to a
weight 409.
Secured on the edge of the matrix, or to the extensions thereof is a stopping
с

page_text: piece 410, which, when the casting chamber is closed, will stop off the side thereof
opposite to the spout.
The clip 405 is so proportioned that the plate will have a trued edge formed on
the side thereof next to the spout.
As the core turns, it will be seen that the clip will be free to turn about its
pivots so that the same will hang down in line with the matrix when the parts
are in the position shown in Fig. 30, so that access is thereby afforded to the
working shoulder.
The operation of the casting mechanism is substantially as before described.
When the plate has sufficiently cooled, the back 400 will slightly drop away
from the matrix.
The core 404 will then be oscillated, and the plate will thereby be turned out
and delivered from the casting mechanism.
As the core rotates, the matrix will unwind or strip from the surface of the cast
plate, and turn down over the roll 403, the weight 409 forming a device for con-
trolling this action.
The plate will then be conveyed away from over the core by substantially the
mechanism used in the principal form of the machine..
As the plate is slid along the skids or ways by the conveyer Z, the type edge
thereof, which is to constitute the side of the plate will be acted upon by a tool
as 411, which is set in position to just engage the type edge, and preferably not
to trim the end side of the plate, as shown in Fig. 32.
The tool is arranged in a suitable holder 412, which is mounted in a casing 413
secured to the frame.
The holder 412 has a roller 414 on the bottom thereof, which bears on one of the
cams 415 416 417.
These cams are preferably secured together to form one piece, and are keyed
to a shaft 418.
A lever 419 with a suitable catch 420 is arranged to engage these cams, so that
any one of the same may be moved into position to control the action of the
tool 411.
The operative cam will act to raise and lower the tool 411 so that, as the plate
is moved past said tool, the tool will follow the contour of the heading.
By the contour of the heading is meant the contour of the type of the plate that
is to form the heading, which generally consists of the number of the page and the
name of the paper, and sometimes the volume and number of the issue.
It is desirable in finishing plates to trim the top surface of the plate close to this
heading, and to trim down the surface between the number and the heading, so
that the plate will accurately and nicely make the proper imprint.
These cams are arranged to trim plates with various headings.
Thus, for example, in the ordinary newspaper, three headings are used; the
outside heading, which contains generally the name of the paper in large type,
and matter at each side thereof; the second part, which contains the number of
the page and the heading in small type; and the third part, which contains the
heading and the number of page, but in different relative positions to that of
page 2.
The remaining pages are generally, so far as the lining of the heading is con-
cerned, duplicates of pages 1, 2 and 3.
Thus, with three cams, the ordinary requirements of the ordinary newspaper can
be provided for, although in some instances a larger number of cams is used to
suit the varying exigencies necessary for a particular newspaper.
The plate then passes into the arch, and is clamped, as before described.
Turning with the principal cutter are edge-trimming tools 421 and 422.
These tools are so arranged as to just touch the type ends of the plate, and to
accurately finish or clean off any blurs or imperfections.
These tools will thus automatically do the operations that are generally per-
formed by hand, of truing the plate up to its type edges.

page_text: The gearing for driving the various parts is substantially the same as that
previously described in connection with the principal form of machine, the
gearing for oscillating the core being substantially that described in connection
with the first modified form of machine, and the gearing for turning the back on
its pivots consisting of cams 423 mounted on shaft 31, and bearing on rollers 424
carried by the back 400.
The shaft 418 is driven from the shaft 76 by means of suitable gearing, as shown
in Fig. 28.
The fourth modified form of plate casting machine will now be described, and
reference to follow this description should be had to Sheets 16 to 18 inclusive.
In this modified form of machine, a plate-casting mechanism alone is shown,
no finishing devices being shown in connection therewith.
This modified form of casting mechanism consists in using a stationary core
and a stationary back.
The flexible matrix is secured at one end to a matrix-carrying frame, which
is pivoted concentrically to the stationary core.
After molten metal has been forced into the casting chamber, that is, the annular
space between the stationary core and the stationary back, and the plate cooled,
the matrix-carrying frame is turned about its pivots to slide the plate out of the
casting chamber, and, during this operation, the matrix is stripped from the
surface of the cast plate by means of suitable cords and links secured thereto.
A detent or pawl is arranged to engage the edge of the plate to retain the same
in position when the matrix frame is oscillated back to its original position,
drawing the matrix back into the casting chamber in position for the next
casting operation.
Referring to the drawings and in detail, 501 designates a stationary core or
back, which is rigidly supported in the frame-work A.
Mounted in the frame-work A, and co-operating with the core 501 to form the
annular casting chamber is a stationary back or piece 502, which is bolted to the
frame-work, as shown.
Journalled concentrically with the stationary core or cylinder 501 is a matrix-
carrying frame 503.
As illustrated, the same comprises end sections 504, which may be cut off or
bevelled, as illustrated, to form finished ends upon the plate; a strip 505, which
connects the sections 504, and is adapted to have one edge of the flexible matrix
secured thereto; and sectors 506, which are rigidly secured to the end sections 504.
The sectors 506 are provided with gear-teeth meshing with driving gears, for
oscillating the matrix-carrying frame.
Pivoted near the front of the stationary core 501 is a gravity pawl or catch 507,
which is arranged to engage behind the end of the plate and prevent said plate
from being carried back into the casting chamber when the matrix-carrying frame
is moved back into position for the next casting operation.
A sliding cover 508 is mounted in the stationary core 501, and is provided with
a catch or pawl 509, for engaging the end of the cast plates, and for conveying
the same on to the receiving horse.
The flexible matrix is riveted or secured in any desired manner to the strip 505.
At its opposite edge, the matrix is provided with a finishing strip 510, and is
supported by cords 511, which pass over pulleys 512 journalled on a shaft 513
carried by frames 514.
The cords 511 are connected at their ends to suitable counter-weights 515.
In a machine, as thus constructed, after the plate has been cast, the matrix-
carrying frame 503 is turned to slide the cast plate out of the caving chamber,
and around the stationary core or cylinder 501.
During this operation, the counter-weights will strip or unwind the matrix.
from the surface of the cast plate, as is illustrated in Fig. 40.
When the plate has been slid completely out of the casting chamber, and on to

page_text: the top of the stationary core or cylinder 501, the catch or pawl 507 will engage
behind the end of the plate, and will retain the same in position when the matrix-
carrying frame is moved back in position for the next casting operation, as is
illustrated in Fig. 41.
The gearing for driving this form of machine consists of a driving shaft 516,
to which power may be supplied by means of loose pulley 517 and tight pulley 518.
Mounted on the driving shaft 516 is a worm 519, which meshes with and drives
a worm-wheel 520 fastened upon a longitudinal shaft 521.
At its outer end, the longitudinal shaft 521 is provided with a box-cam 522.
As illustrated in dotted lines in Fig. 38, the box-cam 522 engages with and
actuates a roller 523 journalled upon a sector 524.
The sector 524 meshes with and drives a gear 525 fastened upon a shaft 526,
which carries the driving gears 527 for oscillating the matrix-carrying frame.
Fastened upon the longitudinal shaft 521 is a bevel gear which actuates the
pumping mechanism by gearing arranged, as described in connection with the
principal form of machine.
The conveyer 508 may be actuated by means of a bevel gear 528 on the longi-
tudinal shaft 521, which meshes with and drives a bevel gear 529, journalled upon
a stud 530.
Fastened upon and turning with the bevel gear 529 is a cam 531, which engages
with and actuates a roller journalled on a yoke 532, which connects to a sector 533.
The sector 533 meshes with and drives a pinion 534 fastened upon the shaft 535,
which carries a driving gear 536, meshing with and engaging a rack on the lower
side of the conveyer 508.
This gearing is so proportioned and timed that the conveyer will properly act in
connection with the matrix-carrying frame.
Of course, if desired, finishing devices could be used in connection with this
plate-casting machine.
The fifth modified form of plate-casting and finishing machine will now be
described, and reference to follow this description should be had to Sheets 19 to 21
inclusive.
In this modification, the casting mechanism is so arranged that two or more
plates can be simultaneously cast, and combined with this casting mechanism is
a finishing mechanism capacitated to act on a single plate, and the mechanisms
are so arranged that, although the casting operation takes place intermittently, the
finishing operation proceeds substantially continuously.
In other words, two plates are cast at one operation by the casting mechanism,
and the finishing mechanism is geared to operate twice for each casting mechanism,
and the traveller or conveyer is so arranged as to carry one plate and then the
other plate through the finishing mechanism.
The casting mechanism consists of a core and a back, with means for holding
two or more matrices in position in the casting chamber, so that two or more
plates will be cast at one operation, the core and back being of substantially
double the width of the plate to be used.
A separating strip is preferably arranged to separate the two plates from the
core.
The plate finishing mechanism used in this device is substantially that described
in the first mechanism except that the same is geared to operate twice for each
casting mechanism, so that the same continues substantially constant in operation,
and the production is doubled only by increasing the size of the casting mechanism,
and not the size of the parts of the finishing mechanism.
Referring to the drawings, it will be seen that the same references are used as
are used in connection with the principal form of machine, and these parts need
not be again described at length, except in so far as they are modified to carry
out this particular improvement.
The casting mechanism is substantially the same as that described with the

page_text: principal form of machine, except that the same is made of double width, so that
two matrices may be inserted therein, and held in position side by side.
The pumping mechanism is also preferably made of double width.
A separating piece 600 is arranged in the casting chamber, so that the two plates
will be cast as separate pieces.
This separating piece consists of an inwardly flared half ring, which is supported
at one end on the spout, and which is hung on the other end on the shaft of the
lifter, and, by this arrangement, the separating piece will be always in the casting
box or chamber, and will not interfere with the core or cylinder turning with the
plates.
The conveyer Z, with this modified form of machine has an additional gravity
pawl 601.
The gearing between the shaft 30 and the cutter R is so proportioned that the
cutter R will turn twice for each revolution of the shaft 31, the gear 157 being
made of double the size of the gear 160.
The mechanism for actuating the conveyer is also so arranged that the conveyer
will make two complete reciprocations to each revolution of the shaft 30.
This is effected by making the bevel gear 129 of double the size of the bevel
pinion 130.
The cam 141 which is used in this device to actuate the clamping mechanism
in connection with the arch is made to have two high and two low surfaces, as
illustrated in Fig. 47, so that the clamping mechanism will actuate twice for each
revolution of shaft 30.
With this arrangement, the first movement to the left of the traveller will carry
the left-hand plate into the arch, and will bring the right-hand plate to a position
between said arch and the cylinder B, and the next movement to the left of the
traveller B will carry the right-hand plate into the arch, and move the left-hand
plate out on to the horse.
With the mechanism thus arranged, two plates will be cast for each revolution
of the shaft 30, and the two plates will be finished one after the other during the
time in which the next two plates are being cast.
By this construction, a larger production can therefore be obtained, as it has
heen found that the limit of speed at which the mechanisms can be operated is
that of the casting mechanism, and not that of the finishing mechanism.
The details and plans of the mechanisms herein described may be further
varied and developed and modified by a skilled mechanic, without departing from
the scope of the invention, as expressed in the claims.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is: ----
1. The stereotype plate casting mechanism described in the foregoing specifica-
tion and illustrated as the principal form of machine.
2. The combination with stereotype plate casting mechanism of automatically
operating devices for operating said mechanism to automatically cast stereotype
printing plates, substantially as described.
3. An automatically operating plate casting mechanism and plate finishing
mechanism arranged in co-operative relation to cast and finish stereotype printing
plates,` substantially as described.
4. The combination of automatically operating plate-casting mechanism, con-
veying mechanism and plate-finishing mechanism arranged to co-operate, sub-
stantially as and for the purpose set forth.
5. The combination of automatically operating plate casting mechanism, con-
veying mechanism, and edge-finishing devices arranged to co-operate substantially
as and for the purpose set forth.
6. The combination of automatically operating plate-casting mechanism, con-

page_text: veying mechanism, and devices for finishing the back surface of the plate arranged
to co-operate, substantially as and for the purpose set forth.
7. The combination of an automatically operating plate casting mechanism,
conveying mechanism, edge-finishing devices, and devices for finishing the back-
surface of a plate, arranged to co-operate, substantially as and for the purpose
set forth.
8. In an automatic plate casting mechanism, a casting chamber, means for
automatically moving a matrix into position in the casting chamber, and means
for directing the molten metal into said casting chamber, arranged to co-operate
substantially as and for the purpose set forth.
9. In an automatic plate casting mechanism, a casting chamber, means for
locking a matrix in said chamber, means for directing the molten metal into said
chamber, and means for automatically stripping the matrix off from the surface
of the cast plate, arranged to co-operate substantially as and for the purpose set
forth.
10. In a plate casting mechanism, a casting chamber and means for stripping
or unwinding the matrix from the cast plate, substantially as described.
11. In a plate casting mechanism, a casting chamber, means for supporting or
positioning a matrix in the casting chamber, and means whereby this supporting
means may be moved to strip or unwind the matrix from the cast plate, sub-
stantially as described.
12. In a plate casting chamber, a casting chamber and means for automatically
stripping or unwinding the matrix from the cast plate, substantially as and for
the purpose set forth.
13. In a plate casting mechanism, a casting chamber, means for automatically
stripping or unwinding the matrix from the surface of the cast plate, and means
for automatically removing the plate from the casting chamber, substantially as
and for the purpose set forth.
14. In a plate casting mechanism, the combination of a casting chamber, and
means for automatically stripping or unwinding the matrix by two of its edges
from the surface of the cast plate, substantially as and for the purpose set forth.
15. In a plate casting mechanism, a casting chamber, means for automatically
bringing a matrix into position in said casting chamber, means for directing
the molten metal into said casting chamber, and means for automatically cooling
the cast plate, substantially as and for the purpose set forth.
16. In a plate casting mechanism, a casting chamber, means for locking a
matrix in said casting chamber, means for directing the molten metal into said
casting chamber, means for removing the matrix from the surface of the cast
plate, a finishing mechanism, and devices for removing the plate from the casting
chamber, and presenting the same to the finishing mechanism, substantially as
and for the purpose set forth.
17. A framing provided with means whereby the same may be inserted and
held within a casting chamber, and with clamping devices arranged to receive
and hold the ends of the matrix before the framing is placed in the casting
chamber, so that when the framing is inserted and held within the casting chamber,
the matrix will thereby be brought into proper position, substantially as and for
the purpose set forth.
18. A framing capable of being inserted within a casting chamber, provided
with clamping means for clamping and holding the edges of a matrix, and with
registering devices, whereby the matrix may be accurately positioned and held
by said framing, substantially as and for the purpose set forth.
19. A framing for holding the edges of a matrix, comprising two side bars
having clamping devices, one of said bars carrying a finishing strip, the side bars
being capable of being inserted within a casting chamber, substantially as and
for the purpose set forth.
20. A framing for holding the matrix, comprising two dove-tailed side bars

page_text: having clamping means for holding the matrix, substantially as and for the
purpose set forth.
21. A framing for holding the matrix, comprising two side bars connected by
flexible spring strips, said bars being capable of being inserted within a casting
chamber, substantially as and for the purpose set forth.
22. In a stereotype plate casting machine, the combination of a core or cylinder,
devices co-operating with said cylinder to form a curved casting chamber, means
for automatically forcing molten metal into said curved casting chamber, and
means for actuating the part of the chamber so that the same will be closed as the
molten metal is forced in, and so that the same will be opened after the plate has
been cast, substantially as and for the purpose set forth.
23. In a stereotype plate casting machine, the, combination of a central core or
cylinder, devices co-operating therewith to form a casting chamber, means where-
by the matrix will be carried by said devices, and means for automatically opening
said casting chamber, and by the same operation stripping or unwinding the
matrix from the cast plate, substantially as and for the purpose set forth.
24. The combination in a stereotype plate casting machine of a central core or
cylinder, and two co-operating matrix carrying segments, and means for moving
the segments to open the casting chamber, and to strip the matrix from the surface
of the cast plate, substantially as and for the purpose set forth.
25. In a stereotype plate casting mechanism, a central core or cylinder, two
co-operating segments provided with means whereby the edges of the matrix may
be secured thereto, and means for automatically moving said segments to open the
casting chamber, and to strip or unwind the matrix from the surface of the cast
plate, substantially as and for the purpose set forth.
26. In a stereotype plate casting machine, the combination of a central core or
cylinder, and two matrix carrying segments, said segments being pivoted, and
means for moving the segments around the pivot to automatically open the casting
chamber, and to strip or unwind the matrix from the surface of the cast plate,
substantially as and for the purpose set forth.
27. The combination in a stereotype plate casting mechanism of a central core
or cylinder, two matrix-carrying segments mounted upon a common pivot, and
means for moving the segments about their pivot to open the casting chamber;
and to strip or unwind the matrix from the surface of the cast plate, substantially
as and for the purpose set forth.
28. The combination in a stereotype plate casting machine of a central core or
cylinder, co-operating matrix carrying segments, means for moving said segments
to unwind the matrix from the surface of the cast plate, and then bodily away
from the central core, substantially as and for the purpose set forth.
29. In a stereotype plate casting mechanism, the combination of a central core
or cylinder, matrix-carrying segments, and cam mechanism for moving said seg-
ments to unwind the matrix from the surface of the cast plate, substantially as
and for the purpose set forth.
30. In a stereotype plate casting machine, the combination of a central core or
cylinder, matrix-carrying segments co-operating therewith, cam mechanism for
moving said segments to unwind or strip the matrix from the surface of the cast
plate, and cam mechanism for moving said segments bodily away from the central
core or cylinder, substantially as and for the purpose set forth.
31. In a stereotype plate casting mechanism, the combination of a central core
or cylinder, matrix carrying segments co-operating therewith, cam mechanism
mounted on a common shaft for moving the segments to strip or unwind the
matrix from the surface of the cast plate and to move the segments bodily away
from the central core or cylinder, substantially as and for the purpose set forth.
32. In a stereotype plate casting mechanism, the combination of a central core or
cylinder, two matrix-carrying segments co-operating therewith, said segments
being mounted on a common pivot or shaft, mechanism for moving said segments
around their pivot to strip or unwind the matrix from the surface of the cast

page_text: plate, and means for moving the pivot or shaft to cause the segments to move
bodily with relation to the central core or cylinder, substantially as and for the
purpose set forth.
33. In a stereotype plate casting mechanism, the combination of a central core
or cylinder, devices for co-operating therewith from the side walls of a casting
chamber, and end rims arranged to form the ends of said casting chamber, and
means for moving one of the end rims to relieve the end of the cast plate, sub-
stantially as and for the purpose set forth.
34. The combination in a stereotype plate casting mechanism of devices for
making up and constituting a curved casting chamber, a lug or shoulder as 25
projecting into the chamber and having an inclined face, and a flat end or edge,
so that a working shoulder 2 will be formed near one side of the cast plate and
so that the cast plate can be withdrawn from the lug 25, substantially as and for
the purpose set forth.
35. The combination in a stereotype plate casting mechanism of device con-
stituting and forming a curved casting chamber, a spout connecting with said
chamber, said spout having a lip projecting within the casting chamber, said lip
having an inclined face, and a flat end or edge, whereby a plate may be cast with
a working shoulder p and a tail p, which extends up to its breaking edge, and
so that the plate can be withdrawn from said spout, substantially as described.
36. The combination in a stereotype plate casting mechanism of a central core
or cylinder, devices co-operating therewith to form the side walls of a curved
casting chamber, a finish strip carried by these devices means for moving these
devices to free the cast plate and to move the finish strip so that the plate may be
delivered from the casting chamber past the same, substantially as and for the
purpose set forth.
37. The combination in a stereotype plate casting mechanism of a central core
or cylinder, two segments co-operating therewith and forming the side walls of a
casting chamber, a finish strip carried by one of said segments, and means for
moving the segments and the finish strip away from the central core or cylinder,
to free the cast plate, substantially as and for the purpose set forth.
38. The combination of devices forming a curved casting chamber, means for
automatically forcing molten metal into said chamber, means for automatically
closing said chamber when the metal is forced in, and for automatically opening
said chamber after the plate is set, and a mechanism arranged to automatically
cool the plate after the same has been cast, substantially as and for the purpose
set forth.
39. The combination in an automatic, stereotype plate casting mechanism, of
devices for forming a curved casting chamber, and means for automatically forcing
molten metal into said casting chamber, and mechanism arranged to automatically
supply water to the inside of the core or cylinder to cool the plate after the same
has been cast, substantially as and for the purpose set forth.
40. The combination in a stereotype plate casting mechanism of devices for
forming a curved casting chamber, including a central core or cylinder, inlet and
outlet pipes projecting into the interior of said core or cylinder, and means for
automatically letting water into said cylinder to cool the plate after the same is
cast, and for withdrawing the water before the next plate is cast, substantially
as and for the purpose set forth.
41. The combination in a stereotype plate casting mechanism of devices com-
prising or forming a curved casting chamber, including a core or cylinder, an
inlet pipe projecting through one journal of said cylinder, an outlet pipe projecting
through the other journal of said cylinder, and having a downward extension to
form a siphon, valves in said inlet and outlet pipes, and means for automatically
operating said valves, substantially as and for the purpose set forth.
42. The combination in a stereotype plate casting machine, of a cylinder, devices
co-operating therewith to form a casting chamber, and means for turning the

page_text: cylinder on an axis passing through the centre of the same, to remove the plate
from the casting chamber, substantially as and for the purpose set forth.
43. The combination in a stereotype plate casting mechanism of a cylinder,
devices co-operating therewith to form a casting chamber, and means for inter-
mittently turning the cylinder part of a revolution, so that the plates may be
cast upon different portions of the periphery of said cylinder, substantially as and
for the purpose set forth.
44. The combination in a stereotype plate casting mechanism of a cylinder,
segments co-operating therewith to form a casting chamber, and means for turning
the cylinder on an axis passing through the centre of the same, to remove the cast
plate from the casting chamber, substantially as and for the purpose set forth.
45. In a stereotype plate casting mechanism, the combination of a cylinder,
devices co-operating therewith to form a casting chamber, a spout connected to
the casting chamber, means for turning the cylinder to remove the cast plate
from the casting chamber and to free the plate from the metal remaining in the
spout, substantially as and for the purpose set forth.
46. The combination is a stereotype plate casting mechanism of a cylinder,
devices co-operating therewith to form a casting chamber, and means for inter-
mittently imparting a half turn to the cylinder, substantially as and for the
purpose set forth.
47. The combination in a stereotype plate casting mechanism of a cylinder co-
operating therewith to form a casting chamber, and a crank-actuated mechanism.
for intermittently turning the cylinder, substantially as and for the purpose set
forth.
48. The combination in a stereotype plate casting mechanism of a cylinder,
devices co-operating therewith to form a casting chamber, means for intermit-
tently turning the cylinder, and a locking mechanism arranged to hold the
cylinder in its various positions, substantially as and for the purpose set forth.
49. The combination in a stereotype plate casting mechanism of a core, devices.
co-operating therewith to form a casting chamber, means for supporting a matrix
in the casting chamber, means for forcing molten metal into the casting chamber,
and means for stripping the matrix from the surface of the cast plate, substantially
as and for the purpose set forth.
50. The combination in a stereotype plate casting mechanism of a cylinder,
devices carrying the matrix and co-operating therewith to form a casting chamber,
means for moving these devices to open the casting chamber and to strip the
matrix from the surface of the cast plate, and means for turning the cylinder to
remove the cast plate from the casting chamber when the latter has been opened,
substantially as and for the purpose set forth.
51. The combination in a stereotype plate casting mechanism of a cylinder,
devices co-operating therewith to form a casting chamber, means for turning
the cylinder to carry the plate from the casting chamber, and detaching mechanism
arranged to detach the cast plate from the surface of the cylinder, substantially as
and for the purpose set forth.
52. The combination in a stereotype plate casting mechanism of a cylinder,
devices co-operating therewith to form a casting chamber, means for turning tile
cylinder to carry the plate from the casting chamber, and a lifting mechanism
arranged to lift the plate by its edges off from the periphery of the cylinder,
substantially as and for the purpose set forth.
53. The combination in a stereotype plate casting mechanism of a cylinder,
devices co-operating therewith to form a casting chamber arranged so that the
plate will be cast with a working shoulder near one edge, means for rotating the
cylinder to carry the plate from the casting chamber, and lifting devices adapted
to engage one edge of the plate and the said shoulder of the plate, to forcibly remove
the plate from the periphery of said cylinder, substantially as and for the purpose
set forth.
54. The combination in a stereotype plate casting mechanism of a cylinder,

page_text: devices co-operating therewith to form a casting chamber, means for turning the
cylinder to carry the plate out of the casting chamber, a lifter arranged on each
side of the cylinder, and means for simultaneously operating said lifters to forcibly
remove the cast plate from the periphery of the cylinder, substantially as and for
the purpose set forth.
55. The combination in a stereotype casting mechanism of a cylinder, devices
co-operating therewith to form a casting chamber, means for turning the cylinder
to remove the plate from the casting chamber, lifters for forcibly removing the
plate from the periphery of the cylinder, and conveying devices for removing the
plate from the lifters, substantially as and for the purpose set forth.
56. The combination with a plate casting mechanism of skids extending from
said mechanism; and a conveying mechanism for sliding the plate along said
skids, substantially as and for the purpose set forth.
57. The combination of a casting mechanism, skids or ways extending from said
casting mechanism, and a reciprocating traveller or conveyer for sliding the plate
along said skids or ways, substantially as and for the purpose set forth
58. The combination of a plate casting mechanism, skids or ways extending
from the same, a traveller or conveyer for sliding the plate along said skids or
ways, and a crank-actuated mechanism for reciprocating the conveyer, sub-
stantially as and for the purpose set forth.
59. The combination of plate casting mechanism, a reciprocating traveller or
conveyer for carrying the plate away from the casting mechanism, and edge finish-
ing cutting mechanism arranged to trim or true the edge of the plate as the same
is moved by the conveyer, substantially as and for the purpose set forth.
60. The combination with a plate casting mechanism, of a plate clamping
mechanism, means for moving the plate from the casting mechanism into the plate
clamping mechanism, and a shaving mechanism arranged to shave or trim the
inner surface of the plate while in the clamping mechanism, substantially as and
for the purpose set forth.
61. The combination with a plate casting mechanism, of a dome or arch, a con-
veying mechanism for moving the plate from the casting mechanism into this
arch, means for clamping the plate in this arch, and a trimming mechanism
arranged to trim or true the inner surface of the plate while clamped in the arch,
substantially as and for the purpose set forth.
62. The combination in a plate finishing mechanism of skids or ways, a clamping
mechanism arranged in line with said skids or ways, means for conveying a plate
along the skids or ways into the clamping mechanism, and a truing or trimming
mechanism arranged to true the inner surface of the plate while the same is held
in the clamping mechanism, substantially as and for the purpose set forth.
63. The combination of skids or ways, a mechanism for moving a plate along
said ways, a dome or arch arranged in line with said skids or ways, a movable
clamping strip arranged in line with one of said skids, means for actuating this
clamping strip to form a clamping mechanism, and a truing mechanism arranged
to finish the inner surface of the plate while the same is clamped, substantially as
and for the purpose set forth.
64. The combination of skids or ways, a truing mechanism for truing the inner
surface of the plate, arranged in line with said skids or ways, a reciprocating con-
veyer for sliding the plates along said ways, and into position to be engaged by
said truing mechanism, and a gravity pawl mounted in said reciprocating conveyer,
to carry the plate beyond the position where the same is operated upon by the
truing mechanism, substantially as and for the purpose set forth.
65. The combination of a plate casting mechanism, comprising a cylinder and
coacting devices, a mechanism for finishing the interior of the plates arranged
substantially in line with the said cylinder, and conveying mechanism for moving
the plate from over said cylinder to the said finishing mechanism, substantially
as and for the purpose set forth.
66. The combination of an automatic plate casting mechanism, an automatic

page_text: plate finishing mechanism, a power-driven shaft for operating the finishing
mechanism, a shaft for operating the casting mechanism, and a clutch arranged
between these two shafts, substantially as and for the purpose set forth.
67. The combination of an automatic plate casting mechanism, a shaft for
operating the same, an automatic plate finishing mechanism and a conveying
mechanism, a shaft for operating the finishing and conveying mechanism, and a
clutch arranged between said shafts, substantially as and for the purpose set forth.
68. The combination of an automatic plate casting mechanism, a shaft having
connections to operate the same, a clutch connecting this shaft with a power driven
shaft, and an automatic stopping-mechanism arranged to disengage said clutch,
substantially as and for the purpose set forth.
69. The combination of an automatic plate casting mechanism, a shaft having
connections to operate the same, a clutch arranged to connect said shaft to the
source of motive power, a disk driven from said shaft, a pin adjustably mounted
on said disk, and connections whereby said pin will act to disengage the clutch,
substantially as and for the purpose set forth.
70. The combination with an automatic plate casting mechanism, a shaft having
connections to actuate the same, a clutch for throwing said shaft into and out of
operation, a handle for operating said clutch, a disk driven from said shaft, and
a pin adjustably mounted in said disk, so as to bear on said handle to auto-
matically stop the casting mechanism, substantially as and for the purpose set forth
71. The combination of an automatic plate casting mechanism,, a shaft having
connections to operate the same arranged so that a plate will be cast for each
revolution of said shaft, a clutch for throwing said shaft into and out of operation,
a handle for operating said clutch, a disk driven from said shaft by any suitable
reducing gear, as a worm and worm-wheel, a numbered ring in which said disk
turns, and a pin which may be secured in different positions in said disk, arranged
to strike on said handle to automatically disengage the clutch when the desired
number of plates, to which the machine is set have been cast, substantially as and
for the purpose set forth.
72. The combination in a stereotype plate casting mechanism of devices for
making up and constituting a curved casting chamber, a lug or shoulder as 25
projecting into the chamber and having an inclined face, and a flat end or edge,
so that the working shoulder p will be formed near one side of the cast plate and
so that the cast plate can be withdrawn from the lug 25, substantially as and for
the purpose set forth.
73. The combination in a stereotype plate casting mechanism of devices con-
stituting and forming a curved casting chamber, a spout connecting with said
chamber, said spout having a lip projecting within the casting chamber, said lip
having an inclined face, and a flat end or edge, whereby a plate may be cast with
a working shoulder p¹ and a tail 2, which extends up to its breaking edge, and so
that the plate can be withdrawn from said spout, substantially as described.
74. The stereotype plate casting mechanism described in the foregoing specifi-
cation and illustrated as the first modified form of machine.
75. In a plate-casting mechanism, the combination of a casting-chamber, means
for opening and closing said casting chamber, and independent means for removing
the matrix from the surface of the cast plate, substantially as and for the purpose
set forth.
76. In a plate casting mechanism, the combination of a casting-chamber, means
for opening and closing said casting chamber, means for forcing molten metal into
said casting chamber, and independent means for removing the matrix from the
surface of the cast plate, substantially as and for the purpose set forth.
77. In a plate-casting mechanism, the combination of a casting-chamber, means
for opening and closing said casting chamber, independent means for removing
the matrix from the surface of the cast plate, and means for moving the plate from
the casting-chamber, substantially as and for the purpose set forth.

page_text: 78. In a plate-casting mechanism, the combination of a core or cylinder, devices
co-operating the said core to form a curved casting-chamber, means for opening
and closing said casting-chamber, and independent means for stripping the matrix
from the surface of the cast plate, substantially as and for the purpose set forth.
79. In a plate casting mechanism, the combination of a core or cylinder, a co-
operating piece or segment, means for moving said segment to open and close the
casting-chamber, and independent means for stripping the matrix from the surface
of the cast plate, substantially as and for the purpose set forth.
80. In a plate casting mechanism, the combination of a core or cylinder, a
movable piece or segment co-operating therewith and means for moving said
segment and oscillating said core, substantially as described.
81. In a plate-casting mechanism, the combination of a core or cylinder, a
co-operating piece or segment, means for moving said piece to open and close the
casting chamber, independent means for stripping the matrix from the surface of
the cast plate, and means for oscillating said cylinder, substantially as and for the
purpose set forth.
82. In a plate-casting mechanism, the combination of a curved casting-chamber,
formed by the annular space between a core or cylinder and a single movable
piece or segment, and means for automatically moving said segment to open and
close the casting-chamber, substantially as and for the purpose set forth."
83. In a plate-casting machine, the combination of a cylinder or core, a back
piece or segment, means for automatically moving said segment away from the
core to open the casting-chamber, and means for automatically oscillating said core
about its axis to deliver the plate, substantially as described.
84. In a plate-casting machine, the combination of a core or cylinder, a co-
operating piece or segment, means for moving said piece to open and close the
casting chamber, matrix-carrying mechanism, and means for oscillating said
cylinder about its axis to deliver the cast plate from the casting chamber, sub-
stantially as described.
85. The stereotype plate casting mechanism described in the foregoing specifi-
cation and illustrated as the second modified form of machine.
86. The combination in a stereotype plate casting machine of a casting chamber
formed by a rigid cylindrical core and a segmental back, with means for sliding
or turning the cast plate around the core to remove the same from the casting
chamber, substantially as described.
87. The combination in a stereotype plate casting machine of a rigid core or
cylinder, and a back piece or segment, the annular space between the same forming
a curved casting chamber, means for moving the back piece or segment relatively
to the core, and means for turning the cast plate around the surface of the core,
to remove or deliver the plate from the casting chamber, substantially as described.
88. The combination in a stereotype plate casting machine, of parts forming
a casting chamber, a stripper, and means for passing the stripper between the
surface of the matrix and the cast plate, to remove the matrix from the cast plate,
substantially as described.
89. The combination in a stereotype plate casting machine, of a core and a
segment or back piece, the annular space between the same forming a curved
casting chamber, means for supporting a flexible matrix in this curved casting
chamber, a stripper, and means for passing the stripper between the surface of the
matrix and the cast plate to remove the matrix from the cast plate, substantially
as described.
90. The combination in a stereotype plate casting machine, of a cylindrical
core, a segmental back piece, the annular space between the same forming a
curved casting chamber, means for supporting a flexible matrix in said chamber,
a stripper mounted concentrically with the core, and means for turning the
stripper around this center, to remove the matrix from the surface of the cast plate,
substantially as described.
91. The combination in a stereotype plate casting machine, of parts co-operating

page_text: to form a casting chamber, a stripper having a projection to engage the end of the
cast plate and means for passing the stripper between the surface of the matrix
and the cast plate to remove the matrix from the cast plate and to deliver the
cast plate from the casting chamber, substantially as described.
92. The combination in a stereotype plate casting machine, of a rigid cylindrical
core, a segmental back-piece, the annular space between the parts forming a
curved casting chamber, means for supporting a flexible matrix in the casting
chamber, a stripper mounted concentrically with the core and having a projection,
and means for passing the stripper between the surface of the matrix and the cast
plate, to remove the matrix from the cast plate, and to turn the plate around the
core to deliver the same from the casting chamber, substantially as described.
93. The combination in a stereotype plate casting machine, of a rigid cylindrical
core, a segmental back-piece, the annular space between these parts forming a
curved casting chamber, means for supporting a flexible matrix in the casting
chamber, a stripper mounted concentrically with the core and having a projection,
means for passing the stripper between the surface of the matrix and the cast
plate to remove the matrix from the cast plate, and to turn the plate around the
core to deliver the same from the casting chamber, and means for sliding the plate
axially off of the core, substantially as described.
94. The combination in a stereotype plate casting machine, of a core and a
segment, the annular space between the same forming a curved casting chamber,
means for starting the cast plate from the surface of the core, and means for
delivering the cast plate from the casting chamber, substantially as described.
95. The combination in a stereotype plate casting machine, of a rigid cylindrical
core, a movable back co-operating therewith, the annular space between these
parts forming a curved casting chamber, the part of the core outside of the
chamber being undercut, means for supporting a flexible matrix in the casting
chamber, a stripper having means for engaging the end of the plate, and means
for passing the stripper between the surface of the matrix and the cast plate to
remove the matrix from the cast plate, and to turn the plate on to the undercut
portion of the core to deliver the same from the casting chamber, substantially
as described.
.
96. The combination in a stereotype plate casting machine, of a core, a
segmental back piece having flanges adapted to engage the ends of the core, the
annular space between these parts forming a curved casting chamber, means for
supporting a flexible matrix in the casting chamber, and means for automatically
moving the segmental back-piece to open and close the casting chamber, sub-
stantially as described.
97. The combination in an automatic stereotype plate casting machine of a rigid
cylindrical core, a segmental back-piece, the annular space between these parts
forming a casting chamber, means for supporting a flexible matrix within this
casting chamber, means for moving the segmental back-piece relatively to the core
to open and close the casting chamber, a stripper, means for passing the stripper
between the surface of the cast plate and the matrix when the casting chamber
is open, and means for delivering the cast plate from the casting chamber, sub-
stantially as described.
98. The stereotype plate casting machine described in the foregoing specification
and illustrated as the third modified form of mechanism.
99. The stereotype plate finishing mechanism described in the foregoing specifi-
cation and illustrated in connection with the third modified form of mechanism.
100. The combination in a plate-casting mechanism, of a movable core and
means for controlling the matrix so that the movement of the core will unwind or
allow the matrix to unwind from the cast plate, substantially as described.
101. The combination in a plate-casting mechanism, of a movable core, means
5 for attaching a matrix to the core, and means for controlling the matrix so that the
movement of the core will unwind or will allow the matrix to unwind from the
cast plate, substantially as described.

page_text: 102. The combination in a plate-casting mechanism, of a casting chamber,
comprising a back and a core, means for attaching a matrix to the core, means for
opening the casting chamber and for moving the core, and means for controlling
the matrix so that the movement of the core will allow the matrix to unwind
from the cast plate, substantially as described.
103. The combination in a plate casting mechanism, of a casting chamber com-
prising an oscillating core and a hinged or pivoted back, means for attaching a
matrix to the core, means for moving the back to open the casting chamber, and
means for controlling the matrix so that the movement of the core will allow
the matrix to unwind from the cast plate, substantially as described.
104. The combination of a casting-box comprising a flanged, hinged back and
an oscillating core, means for attaching one end of a matrix to the core, a turner
around which the other end of the matrix is led, and a weight connected to the
end of the matrix so that when the core is turned, the matrix will unwind from the
surface of the cast plate, substantially as described.
105. A casting box comprising a Hanged, hinged back and an oscillating core,
means for attaching one end of a matrix to the core, a roll mounted on the end
of the hinged back around which the matrix is led, and a weight attached to the
matrix, whereby when the core is turned, the plate will be delivered from the
casting chamber and the matrix unwound from the surface of the cast plate,
substantially as described.
106. The combination of the casting box comprising a back and an oscillating
core, means for securing one end of a matrix to the core, comprising a clip
pivoted to the back, and means for controlling the matrix to unwind from the
cast plate, the pivoted clip moving clear of the plate when the matrix is stripped
therefrom so that the plate can be lifted from the core, substantially as described.
107. The combination of a casting chamber comprising a back and an oscil-
lating core, means for attaching a matrix to the core, means for controlling the
matrix so that the movement of the core will allow the matrix to unwind from the
cast plate, and means for lifting the plate off of the oscillating core, substantially
as described.
108. The combination of means for moving a cast-plate, a tool set to trim the
type-edge of the heading of the plate and means for actuating the tool so that the
same will follow the contour of the heading, substantially as described.
109. The combination of the plate casting mechanism, means for moving the
plate therefrom, a tool set to cut the type-edge of the heading of the plate and
means for controlling the tool so that the same will follow the contour of the
heading, substantially as described.
110. The combination of ways, means for sliding a plate along said ways, a tool
set to trim the type-heading of the plate, and a cam arranged to actuate the tool,
so that the same will follow the contour of the heading, substantially as described.
111. The combination of means for moving a plate, a tool set to trim the type-
heading of the plate and a series of cams, any one of which may be used to cause
the tool to substantially follow the contour of various headings, substantially as
described.
112. The combination of ways, means for sliding a cast plate along said ways,
a tool set to trim the type-heading of the plate, a rotating shaft, and a series of
cams mounted on said shaft, any one of which may be arranged to control the
tool so that the same tool can trim different type-headings, substantially as
described.
:
113. The combination of a plate casting, mechanism, ways extending from the
mechanism, means for sliding the plate along said ways, a tool to trim a type-
heading of the cast-plate, a series of cams, and means for throwing any one of the
cams into operation so that the tool may be set to follow the contour of any desired
heading, substantially as described.
114. The combination in a plate-finishing mechanism of means for holding the
plate by its edges, a rotating cutter arranged to true or trim the inner surface of

page_text: the plate, and tool connected to said cutter turning therewith, arranged to trim the
ends of the plate, substantially as described.
115. The stereotype plate casting mechanism described in the foregoing specifi-
cation and illustrated as the fifth modified form of machine.
116. The combination of a casting chamber comprising a core and a stationary
back, means for sliding the cast plate out of the casting chamber, and means for
stripping the matrix from the surface of the cast plate, substantially as described.
117. The combination of a casting chamber comprising a core and a back, a
pivoted frame adapted to have one edge of a flexible matrix secured thereto, and
means for actuating said frame to remove the plate from the casting chamber and
to allow the matrix to unwind from the surface of the cast plate, substantially as
described.
118. The combination of a casting chamber comprising a core and a stationary
back, an oscillating frame for sliding the cast plate out of the casting chamber,
and means for stripping the matrix from the surface of the plate, substantially as
described.
119. The combination of a casting chamber comprising a core and a stationary
back, a pivoted matrix carrying frame, and means for actuating said frame to slide
the cast plate out of the casting chamber, and to allow the matrix to unwind from
the surface of said plate substantially as described.
120. In a plate casting machine, the combination of a casting chamber formed
by the annular space between a stationary core and a stationary back, means for
sliding the cast plate out of said casting chamber, and means for stripping the
matrix from the surface of the cast plate, substantially as described.
121. In a plate casting machine, the combination of a casting chamber formed
by the annular space between a stationary core and a stationary back, means for
sliding the cast plate out of said chamber around said stationary core, and a detent
for retaining said plate on top of the core, substantially as described.
122. In a plate casting machine, the combination of a casting chamber formed
by the annular space between a stationary core and a stationary back, means for
sliding the cast plate out of said casting chamber around said stationary core, and
plate-conveying devices for removing the plate from the top of the stationary
core, substantially as described.
123. In a plate casting machine, the combination of a casting chamber formed
by the annular space between a stationary core and a stationary back, means for
sliding the cast plate out of said casting chamber around said stationary core,
a detent for retaining said plate on top of the core, and plate-conveying, devices
for removing the plate from the top of the stationary core, substantially as
described.
124. The stereotype plate casting machine described in the foregoing specifi-
cation and illustrated as the fifth modified form of mechanism.
125. The combined stereotype plate casting machine and finishing device
described in the foregoing specification and illustrated as the fifth modified form
of mechanism.
126. A plate casting mechanism having means for holding two different and
independent matrices in position so that two plates can be cast at one operation,
substantially as described.
127. A plate casting mechanism consisting of a core of substantially double
the width of the plate to be cast, a back co-operating with the core, and means for
holding two different and independent matrices in position, whereby two plates
can be cast in one operation, substantially as described.
128. A plate casting mechanism consisting of a curved or circular core of sub-
stantially double the width of a stereotype printing plate, a curved back co-
operating therewith, and a separating strip arranged between the back and the
core so that two plates can be cast at one operation, substantially as described.
129. In a plate casting machine, the combination of a core, a back for holding
a plurality of matrices in position, and means for automatically operating the parts
'

page_text: so that a plurality of plates can be cast at each operation, substantially as
described.
130. A plate casting mechanism capacitated to simultaneously cast a plurality
of stereotypes printing plates, with means for automatically operating the same,
substantially as described.
131. A plate casting mechanism capacitated to cast two plates at one operation,
with means for automatically operating the same, and an automatic plate finishing
mechanism arranged in combination therewith, substantially as described.
132. The combination of a stereotype plate casting mechanism capacitated to
simultaneously cast two plates, a finishing mechanism geared to operate twice for
each casting operation, and conveying means for carrying one plate and then the
other, through the finishing mechanism, substantially as described.
133. A plate-casting mechanism consisting of a cylinder of a length equal to
substantially the width of two plates, a back co-operating therewith to form a
casting chamber, and means for turning said cylinder to deliver the plates from
the casting chamber, substantially as described.
134. A plate casting mechanism consisting of a core and a back, means for
holding two matrices in position so that two plates may be cast, and means for
stripping or unwinding the matrices from the surfaces of the cast plates, sub-
stantially as described.
135. The combination of an automatically operating plate casting mechanism
arranged to cast a plurality of printing plates, conveying mechanism, and edge-
finishing devices arranged to co-operate substantially as and for the purpose set
forth.
136. The combination of automatically operating plate casting mechanism
arranged to cast a plurality of plates, conveying mechanism and devices for finish-
ing the back surfaces of the plates arranged to co-operate, substantially as and
for the purpose set forth.
137. The combination of an automatically operating plate casting mechanism
arranged to cast a plurality of plates, conveying inechanism, edge finishing devices,
and devices for finishing the back surfaces of the plates, arranged to co-operate,
substantially as and for the purpose set forth.
Dated this 12th day of May 1898.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.