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Патент USA US2124665

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July 26, 1938.
c. A. ALBRECHT
2,124,665
TYPOGRAPHICAL SLUG CASTING MACHINE
Filed Nov. 30, 1936
2 Sheets-Sheet
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July 26, 1938.
c. A. ALBRECHT
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2,124,665
TYPOGRAPHICAL SLUG CASTING MACHINE
Filed Nov. 50, 1936
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2 Sheets-Sheet
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Patented July 26, 1938
2,124,665
UNITED STATES PATENT OFFICE
2,124,665
TYPOGRAPHICAL SLUG CASTING MACHINE
Christian Augustus Albrecht, Berlin, Germany,
assignor to Mergenthaler Linotype Company,
Brooklyn, N. Y., a. company of New York
Application November 30, 1936, Serial No. 113,385
In Germany July 10, 1936
11 Claims. (Cl. 199-48)
This invention relates to typographical slug equipped in the usual manner, and carries a
casting machines and is concerned with the mould
wheel and cooperating parts whereby casting of
the slug is rendered effective.
5
‘
As is well-known, when using characters of very
large body it is necessary to make the formative
cavities on the matrices deeper than usual in
order to obtain rgood impressions. Since, by
deepening the formative cavities, the whole slug
10 height becomes greater, the mould has to be made
correspondingly lower.
When these low moulds are used, a correspond
ing alteration of the parts of the machine co-op
crating therewith becomes necessary, and here
15 tofore it has only been practicable to use in one
and the same machine either moulds all of the
usual height, or moulds all of lower height, the
machine parts co-operating with the moulds in
20
use being‘ correspondingly adjusted.
The present invention provides an arrangement
which makes it possible to use in the machine al
ternatively low and high moulds, and also such
that moulds of the regular height and moulds
lower in height may be used at the same time in
25 the one machine. The invention is also appli
cable to the use at the same time in the one ma
chine moulds which may be of any different
heights, none necessarily being of regular size.
The drawings illustrate by way of example
30 one constructional form of the invention, and in
the said drawings:
Figure 1 is an elevation of the mould disc as
seen from the front;
Figure 2 is a plan of Figure 1, showing also the
35
clamping jaws holding the line;
Figure 3 is a section through Figure 1, taken in
plan on the line 3-—3, and drawn to a larger scale,
wherein a low mould is in operative ejecting po
sition;
40
Figure 4 is a similar section to that shown in.
Figure 3, but illustrates a high mould in the op
erative ejecting position;
Figure 5 is a vertical section through the mould
disc with moulds and vise frame;
45
Figure 6 is a section through part of the vise
jaws drawn to a larger scale;
Figure '7 is an illustration of the arrangement
for stopping the machine when the ?rst elevator
is not in its correct position;
Figure 8 shows the adjustment for the move
ment of the mould wheel slide when going over
from one height of mould to another, and
Figure 9 is a section of part of Figure 8 drawn
to a larger scale.
55, In the drawings, I is the mould disc which is
number of moulds. The constructional form il
lustrated shows three moulds 2 of the usual
height, and one mould 4 of a lesser height.
The moulds 2 are provided beneath the mould
slot with two aligning grooves 5 in known man
ner, whereas the low mould 4 is ?tted with only
a single aligning groove 6, because the matrices
adapted to co-operate with the low mould have
only a single character, and need not therefore 10
be presented to the mould at two different levels.
In this case, therefore, the lower lugs of the mat
rices are always at the same level, namely, that
of the groove 5.
"In the casting position, the mould occupying 15
the top position shown in Figure 1, faces the
clamping jaws l'which hold the matrix line be
tween them. According to the invention, these
clamping jaws are resiliently mounted. They are
borne by a transverse running member or slide 20
block 8 with a shelf 9 with which they are adapted
to move in a guide iii of the vise frame. H, and
the parts 9 in the recess ill have play in the fore
and-aft direction, which corresponds in amount
to at least the difference in the height of the two 25
moulds 2 and 4.
In bores of the shelf 9 are ar—
ranged springs l2, adapted to bear on one side
against the end of the bore and each supported
on the other side by a plunger which carries a
rearwardly projecting pin 83. This pin I3 rests
against the rear wall of the recess It] so that the
springs have the tendency to press the jaws 1
?rmly against the mould. Any desired number of
springs may be used.
In the ejecting position in which the mould 4 is 35
shown in Figure 1, the mould, in order better to
withstand thepressure exerted during ejection is
adapted to bear against abutments M on the vice
frame at the top and at the bottom, as shown in
dot-and-dash linesin Figure 1. According to the 40
invention, each abutment Mis provided with a
recess I 5, which is so arranged that the moulds 2
of greater height are adapted to rest against the
base of the recess. The two side walls of the
recess H‘) of the abutment are so located that one 45
of them will enter the groove 5 and the other will
be located above the projecting part of the mould,
when higher moulds 2 co-act therewith (Figure
4) .
When a low mould 4 is in use, the front sur
face of the latter will rest against the higher 50
part of the abutment l4 (Figure 3)? the respec
tive heights of the moulds are indicated in Fig
ures 3 and 4 by the size of the arrows I6.
A further modification‘ of a machine according
to the invention resides in the means employed 55
2
2,124,665
for advancing the mould disc. The mould disc is
rotatable in known manner about a pivot ll lo
cated in the mould wheel slide which performs a
forward and a rearward movement. For this
purpose it is provided at its rear end with a hook
like projection IS, in which engages a roller 20.
The roller is carried by a lever 2| pivotally
mounted at one end 22 on the machine frame, and
runs in a cam groove 24 of the cam 25, which is
10 driven from the main shaft of the machine in
the usual manner.
'
The bolt 26 of a cam roller 23 is eccentrically
mounted in the lever 2|, i. e., that part of the
bolt 26 which is located within the cam roller 23
15 is arranged eccentrically to that part with which
the bolt is located in the lever 2l. On the outside,
the lever 2i engages a clamping arm 21 on'the
bolt 26, the former being slotted and ?rmly se
cured by means of a screw 28.
.
The clamping device 21 allows for release of the
eccentric bolt 26 for slight adjustment,_in order
to compensate for any possible small inaccuracy
of setting. The arm 2‘! engages a link 29, the
other end of which is articulated to one arm of
25 a bell crank lever 30. The latter is pivotally
mounted about a stationary pivot 3| on the ma
chine frame, and a second arm is connected by
a pin 32 to a draw rod 33, which projects for
wardly and has two catches or recesses 34 with
7
30 which it can be engaged in either‘of two posi
20
tions of a pin or ?ange 35.
For manipulation a
knob 35 is provided. The arrangement described
above operates as follows.
Assuming a high mould 2 to be in operative
35 casting position, the rod 33 by means of the knob
36 is so adjusted that the eccentric bolt 26 comes
into the position in which the distance separat
ing the centres of the rollers 20 and 23 from each
other is a minimum. When the high mould 2 is
a mould of the usual height, their difference in
height corresponds to the normal distance separ
' ating these two rollers. 'During the casting oper
ation, the operative cycle is completed in the
usual‘ manner. The clamping jaws 1 between
which the matrix line is held cannot be displaced
when the mould and the mould wheel disc press
against it (and this notwithstanding the yield
ing action of the springs I 2) because its rear
surface lies against the ?rst elevator (not shown)
7 which then occupies its lowermost position, and
thus secures both the line of matrices and the
clamping jaws against any displacement.
During the time a slug is being cast in one
mould 2, another high mould 2 or a low mould 4
may be in the ejecting position in front of the
ejector, but in no case can this mould prevent the
mould disc from passing into the casting position,
as the forward movement of the mould disc is
only effected to such an extent as to correspond
with the high mould 2 so that the mould located
in the ejecting position will therefore not come
into engagement with the abutments [4. When
the high mould now moves from the casting po
sition, with the slug located therein, to the eject
' ing position, either another high mould or a low
mould may move at the same time in front of
the clamping jaws. If a low mould is located in
front of the clamping jaws, it clearly cannot pre
them as they are moved back into the position
shown in Figure 5 in consequence of their resilient
mounting. As a matter of fact it is desirable,
when a high mould is in use and is intended to
bear against the abutments M in the manner
shown in Figure 4, for the mould disc l, with the
mould, to move an additional distance, since the
abutments 14 are recessed and the actual banking
surface on the mould 2 is set back to the extent
of the, difference in the heights of the high and 10
low moulds. This supplementary movement of
the mould disc is not carried out by the mould
wheel advancing mechanism, but is effected
merely by the pressure of the ejecting mechanism
against the slug, utilizing the different amount of 15
play in the combination of levers.
If a low mould 4 is in operative casting posi
tion, the rod 33 is set to the other recess 34. The
eccentric bolt 26 then stands at a position in
which the distance between the rollers 28 and 20
23 is greater than the difference between the
heights of the moulds. Consequently the mould
disc will be moved a correspondingly greater
amount forward by the cams 24 and 25, and the
low mould moves into position in the usual man 25
ner on the clamping jaws 1.
If at that time a
high mould is in the ejecting position, the recess
in the'abutments M allows the necessary forward
movement of the mould to the extent of the
difference in the heights of the molds.
When,
thereafter, the low mould reaches the ejecting
position, the parts occupy the position shown in
Figure 3. At that time, a high mould may be
located in front of the clamping jaws, and as the
latter in consequence of the shifting over of the 35
eccentric bolt 25, now move in the usual manner
when a high mould is in front of the clamping.
jaws, the latter will resiliently yield.
In slug casting machines it is usual to provide
a disconnecting mechanism, which becomes op~
erative to arrest operation of the ?rst elevator,
with the matrix line, fails to descend correctly
and bring the matrix line between the clamping
jaws. For this. purpose, in a machine according
to the present invention, a rod 3‘! (Figure l) is
provided, actuated by an abutment screw 39 (lo
cated on the ?rst elevator 38) when the latter
descends. When the ?rst elevator properly meets
the head of the vise frame it, on its stop 45!, dis
engagement and arrest of the operation does not
take place. The rod 37 is then moved downwardly
against the action of its spring 4!, so that a de
tent 42, pivotally mounted thereon moves from
the path of a horizontally movable bolt 43, so
that when the mould wheel, with the moulds, ad
vances, and moves the bolt 43, the latter passes
the detent 42, and the machine continues to run.
If, on the other hand, the rod 31 has not been
moved downward to a sufficient extent, the bolt
43 comes into contact with‘ a detent 42 and actu
ates the rod 31, thereby bringing the machine to
a stand-still in the usual way.
In previous devices the movement of the bolt 43
has been effected by the moulds. Since, however,
when both low and high moulds are used in the
samemould disc at the same time, the bolt 43 is
not always caused to perform, the same move
ment, a stop 44 has been provided, according to
' vent the forward movement of the mould disc
the invention, on the mould disc itself, which stop
necessary for the high mould to come into en
gagement with the abutments l4 in the manner
7 shown in Figure 4. If, on the other hand, the
comes into engagement with the bolt 43 and a '
high mould 2 is located in front of the clamping
jaws, the latter, when the mould wheel is moved
' forward with the mould, remain pressing against
forward movement on the part of the bolt 43 is
thereby made independent of the height of the
mould.
'
,
'
It should be understood that the machine may
be constructed differently without departing from
3
2,124,665
the scope of the invention. Thus in place of the
adjustment of the combination of levers for the
advancement of the mould disc by means of an
eccentric, any other convenient arrangement pro
ducing an increase or a decrease of the effective
length of the arm 2|, may be adopted, such as a
toggle lever or toothed rack drive or the like. The
form given to the abutments l4 may also match
the shape of the moulds employed. The present
arrangement is not restricted to amould disc with
four moulds only, but may be applied to machines
carrying a larger or smaller number of moulds
irrespective of their number.
Having described my invention, I declare that
what I claim and desire to secure by Letters Pat
ent is:
1. A typographical slug casting machine com
prising a mould wheel, means for advancing said
mould Wheel to its casting position with a mould
therein against a line of matrices, and jaws for
clamping said matrix line which are movably
mounted in order to yield when necessary to the
adjacent mould on the advancing mould wheel.
2. A typographical slug casting machine com
prising a mould wheel, means for advancing said
mould wheel to its casting position with a mould
therein against a line of matrices, a vise frame,
line clamping jaws having blocks movably mount
ed in recesses in said vise frame, and springs urg
30 ing said blocks towards said mould wheel.
3. A typographical slug casting machine com
prising a mould wheel, means for advancing said
mould wheel to its casting position with a mould
therein against a line of matrices, a vise frame,
35 line clamping jaws movably mounted in said vise
frame adapted to yield when necessary to the
adjacent mould on the advancing mould wheel,
and abutments on said vise frame against which
a mould in the slug ejecting position on said mould
wheel is adapted to be pressed when said wheel is
advanced.
4. A typographical slug casting machine as
claimed in claim 3, wherein said abutments are
recessed to accommodate part of a high mould,
when in the slug ejecting position on the mould
wheel.
5. A typographical slug casting machine as
claimed in claim 3, wherein said abutments are
recessed to accommodate part of a high mould
50 when in the slug ejecting position on the mould
wheel, and said high moulds on said wheel are
shaped so that part thereof ?ts into said recesses.
6, A typographical slug casting machine com
prising a mould wheel, means for advancing said
mould wheel to its casting position with a mould
thereon against a line of matrices, line-clamping
jaws adapted to yield when necessary to a mould
on the advancing mould wheel, and means for
adjusting the amount of advance of said mould
wheel in accordance with the height of the mould
in which a slug is about to be cast.
7. A typographical slug casting machine ac
cording to claim 6, comprising a coupling of vari
able e?ective length between the slide carrying
said mould wheel, and its operating cam.
15
8. A typographical slug casting machine ac
cording to claim 6, comprising a link extending
between the slide carrying said mould wheel and
its operating cam, having a roller eccentrically
mounted thereon to engage said cam.
9. A typographical slug casting machine, com
prising a mould wheel equipped with moulds of
different heights, means for advancing said mould
wheel different extents to its casting position, and
a safety device, adapted to arrest operation of the 25
machine if the ?rst elevator fails to assume its
correct position, operable by said mould wheel
irrespective of its extent of advance.
10. A typographical slug casting machine, com
prising a mould wheel equipped with moulds of 30
different heights, means for advancing said mould
Wheel different extents to its casting position,
means in the vise frame for accommodating said
moulds of different heights in the slug casting and
slug ejecting positions on the mould wheel, and 35
a safety device, adapted to arrest operation of
the machine if the ?rst elevator fails to assume
its correct position, operable by said mould wheel
irrespective of its extent of advance.
11. A typographical slug casting machine com
prising a mould wheel equipped with moulds of
different heights, means for advancing the mould
wheel to different extents to accommodate the
different height moulds, a safety device adapted
to arrest the operation of the machine if the ?rst ,
elevator fails to assume its correct position, and
means for operating said safety device from the
mould wheel irrespective of its extent of move;
ment.
CHRISTIAN AUGUSTUS ALBRECHT.
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