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Патент USA US2137190

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Nov. '15, 1-938.
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H. A. w. WOOD
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,.-AUTOMATIC MATRIX REGISTERING DEVICE
Original _Filed»Sept. 11, 1934
2,137,190
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4 Sheets-Sheet ‘l
’Nov. 15, 1938.
H. A. w. WOOD
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2,137,190
AUTOMATIC" MATRIX REGI STERING DEVI CE
Original Filed sept. '11. 1954
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4 Sheets-Sheet 2
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NW, 15, 193»
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"2,137,190
H. A. W._ WOOD
AUTOMATIC'MATRIX REGISTERING DEVICE
Original Filed Sept. 11, 1934
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4 Sheets-Sheet 3
Nmn 15, 1938.,
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H. A. W. WOOD
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2,137,39Q
AUTOMATIC‘MATRIX REGISTERING DEVIGE'
Original Filed Sept. 11’, 1934
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4 Sheets-Sheet 4
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2,1311%
Patented Nov. 15, 1938‘
UNITED STATES
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2.132190‘ 1' _~
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- ‘AUTOMATIC MATRIX REGIsrERI?c DEVICE “1
Henry A. Wise'W'o'odjNe‘w "York; "N. Y., assignor ' '
to Wood Newspaper Machinery ‘Corporation,
New,York, N;.Y., acorporatio'n of Virginia. ‘
Application September 11, 191 El; serial mantis;
‘Renewed November 16, 1937,‘
- 7 Claims. ~(c’1.?2‘2-'-z) 1
This invention relates to that type of‘ casting
machine which is vused for casting stereotype
printing plates, mostly for newspaper work,
wherein the matrix is set in clips, automatically
5 stripped from the plate and. the machine "is
ready for thepcasting of another plate without
any additional setting of the matrix on thepart '
of the operator, Machines for this purpose are
commonly used in ‘newspaper work particularly’
10 in black and white printing.
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The principal objectsof this invention are ,to
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rotatable orfotherwise movable tov free or dis
charge the. platejcast between them. The. in
vention is,v applicable, of course, to casting boxes
of‘ this‘generaltype ‘whether they are. arranged
vertically or,;.otherwise, and m, 'fact-tothose in
which the cylinder is ,bodily .,movable . instead of
the back.’ -
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The backisl‘shown as provided with amatrix
bar 2 mountedin bearings} carried by the back.
Thein'atrix bar is provided with top and. bottom 10’
,studs Barranged vertically and, ‘in this case, they
secure accurate register in black and white print-‘ oscillate in the bearings 3.‘, At the topa torsion
springlis provided withone end attached to the
ing, but particularlyincolor printing; to pro
vide a method whereby in casting a number of top bearingrii and the‘, other end to the matrix
bar. ‘ ‘This spring iswoundpand‘ tensionedso as 15
.15 platesfrom a single setting of amatrix the di?i
culty usually encountered in maintaining ac-‘ to tend to keep ‘thematrix bar, in the position
The usual matrix clip 8 is
curate register is eliminated; toprovide a con, vshown
struction in which the natural tendency’ for the ‘shown provided with studs 9 operating inslant
matrix Vtocreep little by little at each casting ing slots .IU inzthe matrix bar‘, to clamp the ma
trix. Theslots ID ,are placed at an angle with 20V
so will be corrected so that the cumulative move
ment of the matrix in the casting of a plurality respect tothelength of the bar 2,‘ and provided
of plates cannot occur because the/correction is with a largeiopening at, the top. This permits
made automatically after the. casting of each “the‘removal andreplacement of the clip 8 as
plate; and to provide iorthe automatic registra
desired. .Theclamping member is used for prop
tion of the matrix after each-casting operation so erly clamping the edge of thematrix between the
that the matrix will always be in proper regis
clip_8 and'the matrix bar 2. ‘These parts are 25
tration at the casting of each plate, whereby the duplicated on the .opp‘osyiteedge. , These features
matrix will be in exactly the, same position when just,describedlare old,.and it is customary, in a
the last plate is cast as it will be atthe. casting machine of; this kind, to provide means for props
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of the ?rst or any intermediate plate.
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Other objects and advantages of the invention
will appear hereinafter.
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Reference is to be had to the accompanying
drawings, in which
erlyi adjusting the clamping action. It is to be
understood that this invention is applicable to a 30
casting box so made-but these features are not
illustrated here as they are so-well known.
Fixed to the, top of_ the top stud. 5 is a locking
Fig. 1 is a plan, partly in section,‘ showing the ‘lever II, one endoi which is: shaped to cooperate 35
' 'inatrix clamping arrangement with apreferred withacam I2 secured to thecylinder I3.- From
embodiment of this invention applied thereto . robservationnf Fig. 3; it will be seen that when the
and with the ‘matrix‘bars and ‘clips inproper .back ‘I is moved toward thecylinder I3 the lock- '
position for ‘locating the matrix before'the ?rst .ing leverll-engagesvthe cam I2 during, themo
‘tion of the backland-before that motion is com 40
4a)
Fig. 2 is a similar view showing the ‘next step pleted. The~~completion oi the‘ motion of the
in'the clamping‘ of ‘the matrix and‘showing the ,back into its ‘final position, therefore, results in
cast;
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‘swinging-the locking lever- I I backwardly, taking
with it; the Imatrixbar'Z, the clip 8, and also the
fully clamped against the casting box ready for ,matrix,‘ the edge of. which, ofco-urse; is gripped 45
45 the c'ast,~with the registering pinswithdrawn so between the clipiand the bar.- This brings the
that any slight movement of the matrix will not matrix ?rmly; against the back I so that it is.
locked in’. proper positionlfor the casting of a
injure the registering holes in the matrix;
registering pins properly positioningthe matrix;
Fig.‘ 3 is a‘similar View showing the matrix
‘Fig. 4 is a similarview showing the position '
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when the casting box is being moved away from
the cast plate after the casting operation and
the matrix is being stripped while the register
ing pins are re-locating the matrix, and
’ Fig; 5 is an elevation, as indicated by the arrow
5 of Fig. 1, of the matrix bar and clips with this
invention applied thereto.
The invention is shown as applied to a casting
box- which comprises a back I and an upright
cylinder or core I3.
The back is movable to
60 ward and from the cylinder, and the cylinder is
'stereotype,plataagainst it.
The‘other end .of' thexlocking lever II is pro 50
vided with two-notches 4 and 6 for cooperation
with a roller III which is mounted rotatably on a
stud carried ~ by; the locking handle I5. This
lever is pivoted toithe back by a stud I9.
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.Referring now'to Fig- 1, the back I may be 55
considered as away from the cylinder,‘ but the
-matrix bar'and clips are iiip‘roper ‘position for
iocati-ng’the mat‘rix'befo're"the‘b'ack is' moved into
casting position.
The roller I4 is now located in
the outside notch 4 of the lockinglever II. It 60
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2,137,190
will be understood that a similar arrangement is
carried on the other side of theback.~v .In this
position‘ there is a slight amount of clearance
p 1. In a stereotype plate casting box, the com
from one clip 8 to the other over the entire length
of the matrix. This permits the matrix to'ibe
bination with a cylinder adapted to be turned on
its axis and a casting back movabletoward and
slid into the clips easily in the ,proper__,place.
from the cylinder, of registering pins carried by
said back, a locking handle, and means operated
by the locking handle for moving said registering
pins into va position to register the matrix while
When this is done the locking handle I5 is moved‘
to the position shown in Fig. 2, so that the roller
M engages the inside notch 6 of the locking lever,
10 and the clip 8 is moved toward'the matrixbar v2
to lock the edge of the matrix vbetweenthem.
Referring now to Figs. 2 and 5, it will be seen
that a shaft I6 is carried in bearings on the
matrix bar 2 and has secured to it a lever I1‘ and
15 pin arms I8. On the locking handle I5 is a cam
, projection 20 which engages one end of the lever
II in this position and, on account of the motion
of the locking handle I; just described,irotates
the mold is open.
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2. In a stereotype plate casting box, the com
bination with a cylinder adapted to be turned on
its axis and a casting back movable toward and
from the cylinder, of registering pins carried by
said back, a locking handle, means operated by
the locking handle for moving said registering
pins into a position to register the matrix while
the pin arms [8 move inwardly against theends
the mold is open and means for withdrawing the
said pins from the matrix as the mold is closed
and for thereafter projecting the pins to a posi- ~
tion to re-register the matrix before the mold is
of the matrix locating pins 2 I. This forces these
closed for the second casting.
pins from the position shown in Fig. 1 to the
position shown in Fig. 2 through ‘previously
3. In a casting box, the combination with a
cylinder and a casting back movable toward and
from the cylinder to form the mold for the plate,
of means for holding the edge of a matrix pro
this lever "slightly in a counter-clockwise di
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to the details herein disclosed, otherwise than as
set forth in the claims, but What I claim is:
rection to the position shown in Fig. ,2, so that
IO in punched holes in the matrix, this action being
resisted by a pair of springs“. These pins have
conical ends so that they will‘go through the
holes in the matrix and, as the holes are the
same size as the pins‘, they will register the ma
30 trix perfectly and bring the matrix into the proper
position for casting the ?rst plate.
However, before the plate is cast, the locking
handles l5 are opened to the position shown in
Fig. 4. In this position a projection 25 on the
(1.1 CR lever I1 comes to bear against the‘solid portion
vided with perforations, matrix pins adapted to
pass through said perforations to register the
vmatrix, a locking cam on the cylinder, a locking
lever movably mounted on the back, means for 30
moving said locking lever from one position to
another, in one of which positions the looking
lever engages the cam and moves backward as
the back moves forward, and means connected
with said locking lever for registering the matrix. 35
of the back, preventing furthereclockwise rota
tion of the shaft [6 and holding it in the position
shownrin Fig. 4. As the matrix bar 2 pivots
around the center of the studs 5 the pins ‘M are
again projected through the holes in the matrix.
Their ends enter recesses 22 in the clips 8.
pass through said perforations to register the
Afterward, as the casting back I moves ‘further
forward, the locking lever ll cooperates with the
locking cam l2 and the relative motionrof these
matrix, a locking cam on the cylinder, a locking
lever movably mounted on the back,‘ a handle for
locking the back to the cylinder, means carried
two parts permits the springs 23 to withdraw'the
pins 2|. This leaves the matrix free to move
by the handle for moving said locking lever from , .
any attempt to hold the matrix ?rmly against
creeping would result in the rupture of the mat
rix at the holding point and ‘thereby destroy any
back movable toward and from the cylinder, of
4. In a casting box, the combination with a
cylinder and a casting back movable toward and
from the cylinder to form the mold for the plate,
of means for holding the edge of a matrix pro
vided with perforations, matrix‘ pins adapted to a
one position to another in one of which positions
except for the friction hold that the .clips 8 exert the locking‘ lever engages the cam and ‘moves
against the matrix barIZ. , This arrangement is backward as the back moves forward, and means
provided because the‘ contraction'of the stereo ' connected with said locking lever for registering
type metal just after the pouring is one of the the matrix.
causes of the creeping of the matrix. The power
5. In a casting box for newspaper printing
' exerted by this contraction is so tremendousthat
plates, the combination with a cylinder and a
possibility of relocating-the matrix.
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After the ?rst plate is‘ cast the casting back
of course is drawn away-fromlthe cylinder and
the parts take the position'shown in Fig. 4, as
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stated. Here the pins 2| -reengage in the holes
of the matrix and any slight tendency of the
matrix to move is corrected immediately after
the casting operation by the insertion’of these
conically pointed pins and the matrix is brought
back to its original position or re-registered.
Any number of castings may be made with this
arrangement and the matrix is re-registered
automatically after each casting and before the
plate is removed. Therefore the last plate main
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tains as accurate a register as‘ the ?rst or any
intermediate plate.
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Having thus described my invention and the
advantages thereof, I do not wish to be limited‘
a locking cam ?xed on the cylinder, a locking
lever pivo'tally mounted on the back and adapted
to engage said cam, said locking lever having two
recesses, a handle for locking the back in' cast
ing position, a cam projection on the locking
lever, and means operated by the lever for reg
istering the matrix, whereby the contact of said 60
cam projection with said lever will operate the
registering means as the back is closed.
6. In a plate casting mechanism, the combina
‘tion of means for registering a matrix, means for
casting a plate, a spring for withdrawing the reg— 65
istering means, and a cam for re-registering the
matrix before casting the next plate.
'7. A plate casting mechanism comprising a ma
trix and a cam and lever for automatically regis
tering a matrix, withdrawing the registering
means, and re-registering the matrix between the
casting of each plate.
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HENRY A. WISE WOOD.
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