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Патент USA US2116051

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May 3, 1938. v_
T. J. THATCHER
2,116,051
TYPOGRAPHICAL GOMPOSING AND CASTING MACHINE
Filed May 6, 1936
BY
76%
‘
11v VENTOR
M
’ I ’ M {W
A T RNEYJ‘,
Patented May 3, 1938
2,116,051
UNITED STATES PATENT OFFICE‘
2,116,051
TYPOGRAPHICAL COMPOSING AND CAST
ING MACHINE
Thomas J. Thatcher, Huntington, N. Y., assignor
to Mergonthaler Linotype Company, a corpora
tion of New York
Application May 6, 1936, Serial No. 78.149
18 Claims. (Cl. 199-62)
This invention relates to slug casting machines still be comprised within its spirit. It is to be
of the general organization represented in U. S. understood, therefore, that the invention, is not
Letters Patent to O. Mergenthaler No. 436,532, limited to any speci?c form or embodiment ex»
wherein circulating matrices are released from a
5 magazine in the order in which their characters
are to appear in print and then composed in line,
the composed line transferred to a vertically
movable transporter or ?rst elevator which pre
sents it to the mold, the mold ?lled with molten
10 metal to form a slug or type-bar against the
matrices which produce the type characters
thereon and the matrices thereafter elevated and
returned through a distributing mechanism to
vthe magazine from which they started. At the
15 time the matrices are being elevated and dis
tributed, the cast slug is ejected from the mold
and forced between a pair of trimming knives
mounted on the vise frame and which dress
down the sides of the slug and bring it to the
2 O proper thickness.
In these machines, it is the practise to remove
the shavings from the knives after a slug has
been trimmed and before the next slug is deliv
ered therethrough, and this is ordinarily accom
plished by the use of a knife wiping mechanism
which is controlled or actuated by the movement
of the ?rst elevator, either in its descent or in its
ascent, or some other periodically moving part of
the machine. The wiper per se usually com
30 prises a thin, narrow blade which extends across
the cutting edges of the knives in engagement
therewith and which has an active downward
stroke lengthwise of the knives. Ordinarily the
left-hand knife is stationary and the right-hand
_- knife adjustable to set the knives for trimming
slugs of different body thicknesses, and the wiping
blade is made long enough to engage the cutting
edges of both knives in any adjusted condition
.19
thereof.
The present invention contemplates an im
proved form of wiping means whereby the shav
ings may be removed effectively without actual
engagement of the wiping means with the cut
ting edges of the knives. To this end, two inter
changeable wipers, one for each knife, are
mounted independently of the knives for move
ment lengthwise of their respective cutting edges,
the wiper associated with the adjustable knife
being movable relatively to its mounting for
adjustment automatically with the right-hand
knife.
-
'
In the accompanying drawing, the invention
has been shown merely by way of example and in
preferred form and obviously many variations and
modi?cations may be made therein which will
cept insofar as such limitations are speci?ed in
the appended claims.
5
Referring to the drawing:
Fig. l is a side elevation of the vise frame car
rying the elevator and slug trimming knives, and
showing the knife wiping mechanism associated
therewith at the beginning of the wiping stroke; 10
Fig. 2 is a perspective view of the knives and
wipers, the bottom portions of the knives being
lost in phantom;
'
Fig. 3 is a plan view of the knives and wipers,
showing by the full lines the knives in one set 15
position for a slug of given body thickness and
by the dotted lines the right-hand knife adjusted
for a slug of greater body thickness; and
Fig. 4 is a perspective View of the wiper as
sembly in disassembled condition to show the 20
manner of mounting the wipers on the actuating
mechanism.
The casting mechanism, which is of conven
tional form, is not shown in the accompanying
drawing, but after composition the line of mat- 25
rices M is delivered to the ?rst elevator A as
shown in Fig. 1 and then lowered thereby to a
position, in front of the mold which is carried by
a rotatable mold disc. Immediately thereafter,
the mold disc advances to bring the mold into
contact with the matrix line for the casting of
the slug, and after the slug is cast the mold disc
is retracted and rotated to carry the mold from
its horizontal casting position to a vertical posi
tion immediately in front of an ejector (not
shown) which operates to expel the slug from
the mold and force it between a pair of trimming
knives B and B1, whence the slug is delivered to
a receiving galley (not shown) at the front of
the machine. During the slug ejecting operation, 40
the ?rst elevator A ascends to its highest level to
deliver the composed line to the distributing de
vices and thereafter descends to its normal po
of rest (shown in Fig. 1) in readiness to: re
ceive another composed line.
45
The mechanism shown in the drawing for actu
ating the knife wipers is the same as that shown
in the pending U. S. application Serial No. 41,351,
?led September 20, 1935 by Edgar H. Atkins, and
for a more complete description thereof reference v50
may be had to that application. Brie?y, the
actuating mechanism comprises a vertically dis
posed rod D arranged at the back of the vise,
frame E’ and guided in its vertical movement by
a bracket 01 attached to the vise frame. The rod ,55
2
2,116,051
D is pivotally mounted as at d1 in the hub por
while the outer inclined face B3 of each knife,
tion d2 of a link member d3 which connects the 'which converges toward the inner face B2 to
rod D to a similar rod :14 at the front of the vise de?ne the cutting edge thereof, is engaged by the
frame, the connecting member 013 being rigidly outer face of the bent-in side P5 of the respective
and adjustably secured to the rod (14 by the nuts
115 and d6. A coiled spring s wound about the
hub (17.2 and bearing against the rod D tends con
wiper. As. thus arranged, in their lengthwise
travel along the knives, the wipers P and P1
remove all metal chips and shavings which ad
stantly to hold the rod in proper relation to the
here to the cutting edges and faces B2 and B3
of the knives, for although they do not engage
trimming knives B and B1 as determined by a
10 guide shoe (17 (Figs. 2 and 3) ?xed to the upper
end of the rod D and bearing against the ?at
vertical surface b1 of the knife B. The rod D is
held in its normal or resting position by a com
pression spring (19 surrounding the rod d4 and ar
15 ranged between two ?xed brackets F and F1 on
the stationary vise frame E, the upper or free end
of the spring bearing against an adjusting nut
(11° separated from the bracket F1 by a collar
d“. A dowel pin G, projecting from the elevator
A and adapted, through one arm h of a lever H
pivoted as at h1 to the elevator head A1, to strike
the top of the rod d4 as the elevator A descends,
forces the rods D and d4 and connecting link d3,
as a unit, downwardly against the pressure of the
compression spring d9, which later raises the rods
back to their upper normal positions as the ele
vator ascends. The lever H serves to multiply
the downward movement of the elevator A and
maintain a normal stroke for the wiper actuating
30 mechanism when the elevator is arrested at
slightly higher levels in presenting a line of mat
rices bearing large characters to the mold, ad
justable blocks (not shown) being arranged on
top of the ?xed frame E in the path of the arm
h? of the lever H and causing the latter to be
rocked about its pivot 711, all as more fully set forth
in the Atkins application referred to previously.
Coming now to the wipers and referring partic
ularly to Figs. 2, 3 and 4, each wiper P, P1 is
directly with the cutting edges of the knives, their
relationship thereto is such that even the smallest
chips will be loosened and removed. Because
of its sliding attachment to the arm (Z12 of the
bracket (113 and its engagement with the inner
and outer faces B2 and B3 of the adjustable right
hand knife E1, the wiper P1 will move with the
knife B1 to any adjusted position thereof.
The wiper P, which cooperates with the sta
tionary left-hand knife B, could be ?xed to the
bracket arm (112, but obviously it is more desir 20
able to have it freely mounted thereon as shown,
since not only is it rendered removable from the
bracket arm but the wipers can be made identical
and interchangeable.
The invention has been shown and described as
comprising, in its preferred form, a wiper which
is a unitary structure, two such wipers individual
to the knives being employed and arranged on a
common mounting. However, it is obvious that
similar results can be obtained by wipers engaging ‘ -‘
the converging faces of the knives but being in
dependently mounted and operated by a common
actuating mechanism, the wiper cooperating with
the adjustable knife being movable relatively to
its mounting or being carried by a movable or
yielding mounting; and the wiping faces for each
knife can be independent, that is, formed in sep
for mounting on the blades of existing wiping
mechanisms, the only modi?cation of the ex
arate sections. It is to be understood therefore
that such modi?cations and variations fall within
the contemplated scope of the invention.
~10
Having thus described my invention what I
claim is:
1. A knife wiper for the slug trimming knife
of a slug casting machine, said wiper being
formed to engage the inner face of the knife.
2. A knife wiper for the slug trimming knife of
a slug casting machine, said Wiper being formed
to engage the inner and outer faces but not the
cutting edge of the knife.
3. A knife Wiper for the slug trimming knife ;
of a slug casting machine, said wiper being
formed with arms disposed in angular relation to
isting mechanisms required being the extension
one another to engage each with one of the con
of the guide shoes corresponding to the shoes d7
as by hammering them out or tipping them with
verging faces of the knife.
Ll. A knife wiper for the slug trimming knife of ,
a slug casting machine, said wiper being formed
:40 slidably mounted on a horizontal arm (I12 of an
angle bracket (113 whose vertical arm (114 is ?xed
to the upper end of the rod D as by locating pins
thereon adapted to ?t in openings 0115 in the arm
d“ and a screw, rivet or headed-over pin passing
through the opening 1116 in said arm. The bracket
1113 is formed to be ?tted on the rod D in the
same manner as the usual wiping blade previously
referred to, and the dimensions of the arm d12
are substantially the same as those of the said
blade so that the wipers P and P1 are adaptable
solder or the like.
The Wipers are preferably (although not neces
sarily) of identical form and are mounted face
to face on the arm c112, each wiper comprising a
60 narrow strip of material, preferably thin sheet
metal, bent to present four sides P2, P3, P4 and
P5 of substantially equal length. The side P5,
which terminates in a free end P“, is bent in
wardly so that it extends at an angle toward the
side P2 but short of engagement therewith. Near
the juncture of the sides P2 and P4 with the side
P3, the former are perforated to provide openings
P" and P8 to receive the arm (112 of the supporting
bracket 0113 on which they are adapted to be freely
slidable.
When located in operative position, as shown
in Figs. 2 and 3, the wipers P and P1 are asso
ciated, respectively, with the knives B and B1
so that the ?at inside face of the side P2 of each
15 engages the inside face B2 of its respective knife;
with arms disposed in angular relation to one
another to engage each with one of the converging
faces of the knife, one of said arms being adapted
to engage the inner face of the knife and the til)
other to engage the outer face of the knife but
terminating short of the cutting edge thereof.
5. A knife wiper for the slug trimming knife of
a slug casting machine, said wiper being formed
with angularly disposed wiping surfaces adapted
to engage the inner and outer faces but not the
cutting edge of the knife.
6. A knife wiper for the slug trimming knife
of a slug casting machine, said wiper being formed
of a narrow strip of sheet metal bent to shape 70
and presenting angularly disposed surfaces adapt~
ed to engage the inner and outer faces of the
knife and being separated to avoid engagement
with the cutting edge thereof.
'
7. In or for a slug casting machine equipped
3
2,116,051
with a pair of trimming knives whose cutting
edges are formed by converging faces, a knife
wiping means whose active stroke is lengthwise
of the cutting edges of the knives arranged to
engage with inner and outer faces of each knife
but not with the cutting edge thereof.
8. In or for a slug casting machine equipped
with a pair of trimming knives whose cutting
edges are formed by converging faces, a knife
10 wiping mechanism comprising a narrow blade
extending transversely of the cutting edges of the
knives and whose active stroke is lengthwise
thereof, and a pair of wipers, one for each knife,
adapted to engage both of the converging faces
15 of their respective knives but not the cutting
edges thereof and being mounted on said trans
versely extending blade.
9. In or for a slug casting machine equipped
with a pair of trimming knives whose cutting
20 edges are formed by converging faces, a knife
wiping mechanism comprising a narrow blade
extending transversely of the cutting edges of the
knives and whose active stroke is lengthwise
thereof, and a pair of wipers, one for each knife,
25 adapted to engage both of the converging faces
of their respective knives but not the cutting edges
thereof and being slidably mounted on said
transversely extending blade.
10. In or for a slug casting machine equipped
30 with a pair of trimming knives whose cutting
edges are formed by converging faces, a knife
wiping mechanism comprising a narrow blade
extending transversely of the cutting edges of the
knives and whose active stroke is lengthwise
35 thereof, and a pair of wipers, one for each knife,
formed to engage both of the converging faces
of their respective knives but not the cutting
edges thereof and being independently and slid
ably mounted on said transversely extending
40 blade.
11. In or for a slug casting machine equipped
with a pair of trimming knives whose cutting
thereof, and common means for operating said
wipers.
. 14. In a slug casting machine equipped with a
pair of slug trimming knives whose cutting edges
are formed by converging faces, the combination
of a pair of wipers individual to the knives and
formed to engage both of the converging faces of
their respective knives, said wipers being ar
ranged on a common mounting independently of
their respective knives for movement lengthwise 10
of the cutting edge thereof, and means for oper
ating said wipers.
-
15. In a slug casting machine equipped with a
pair of slug trimming knives whose cutting edges
are formed by converging faces and at least one 15
of which is adjustable toward and away from the
other for trimming slugs of different body thick
ness, the combination of a pair of wipers indi
vidual to the knives and formed to engage both
of the converging faces of their respective knives, 20
said wipers being mounted independently thereof
for movement lengthwise of the cutting edges of
their respective knives in any‘ adjusted relation
thereof, and means for operating said wipers.
16. In a slug casting machine equipped with a 25
pair of slug trimming knives Whose cutting edges
are formed by converging faces and at least one
of which is adjustable toward and away from
the other for trimming slugs of different body
thickness, the combination of a pair of wipers 30
individual to the knives and formed to engage
both of the converging faces of their respective
knives, said wipers being mounted independently
of their respective knives for movement length
wise of the cutting edges thereof, and means for
operating said wipers, the wiper associated with
the adjustable knife being mounted for adjust
35
ment therewith.
17. In a slug casting machine equipped with a
pair of slug trimming knives whose cutting edges 40
are formed by converging faces and at least one
of which is adjustable toward and away from the
edges are formed by converging faces, a knife . other to different set positions for trimming slugs
wiping mechanism comprising a narrow blade
of different body thickness, the combination of
extending transversely of the cutting edges of the
knives and whose active stroke is lengthwise
a pair of wipers individual to the knives and
formed to engage both of the converging faces of
thereof, and a pair of wipers, one for each knife,
formed to engage both of the converging faces of
their respective knives. but not the cutting edges
thereof and being independently and slidably
mounted on said transversely extending blade,
said wipers being interchangeable in position on
the blade.
12. In a slug casting machine equipped with a
pair of slug trimming knives whose cutting edges
are formed by converging faces, the combination
of a pair of wipers individual to the knives and
formed to engage both of the converging faces of
(50
their respective knives. said wipers being mounted
independently of their respective knives for
movement lengthwise of the cutting edges there
'of, and means for operating said wipers.
13. In a slug casting machined equipped with a
pair of slug trimming knives whose cutting edges
are formed by converging faces, the combination
of a pair of wipers individual to the knives and
formed to engage both of the converging‘ faces
of their respective knives, said wipers being
70 mounted independently of their respective knives
for movement lengthwise of the cutting edges
their respective knives, said wipers being mount
ed independently of their respective knives for
movement lengthwise of the cutting edges there
of, and means for operating said wipers, the
wiper associated with the adjustable knife be
ing movable relatively to its companion wiping
member and carried by the adjustable knife to
any set position thereof.
18. In a slug casting machine equipped with a
pair of slug trimming knives whose cutting edges
are formed by converging faces and at least one
of which is adjustable toward and away from the
other to different set positions for trimming slugs
of different body thickness, the combination of
a pair of wipers individual to the knives and
formed to engage both of the converging faces of
their respective knives, said wipers being mount
ed independently of their respective knives for
movement lengthwise of the cutting edges there-''
65
of, and means for operating said wipers, the
wiper associated with the adjustable knife be
ing movable relatively to its mounting and‘ car
ried by the adjustable knife to any set position
70
thereof.
THOMAS‘ J. THA'I‘CHER. ‘
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