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Патент USA US3067685

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Dec. 11, 1962
w. <5. ZIMMER ETAL
3,067,675
PRINTING UNIT DRIVE
Filed Feb. 9, 1961
6 Sheets-Sheet 1
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Dec- 11, 1962
w. G. ZIMMER ETAL
3,067,675
PRINTING UNIT DRIVE
Filed Feb. 9, 1961
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Dec. 11, 1962
w. G. ZIMMER ETAL
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PRINTING'UNIT DRIVE
Filed Feb. 9, 1961
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PRINTING UNIT DRIVE
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Dec. 11, 1962
w. G. ZIMMER ETAL
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PRINTING UNIT DRIVE
Filed Feb. 9, 1961
6 Sheets-Sheet 6
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United States Patent 0
3,067,675
M,
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Patented Dec. 11, 1962
2
1
FIG. 7 is a fragmentary, enlarged elevation of a por
tion of the back of the unit shown in FIG. 1; and
3,067,675
FIG. 8 is a section taken approximately along the
PRINTING UNIT DRIVE
William G. Zimmer, Villa Park, Robert G. Peterson,
Downers Grove, Peter E. F. Loew, Chicago, and Louis
S. Tyma, Jr., Hinsdale, Ill., assignors to Miehle-Goss
Dexter, Incorporated, Chicago, Ill., a corporation of
line 8--8 in FIG. 7.
While the invention will be described in connection
with a preferred embodiment, it will be understood that
we do not intend to limit the invention to that embodi
ment. On the contrary, we intend to cover all alterna
Delaware
Filed Feb. 9, 1961, Ser. No. 88,181
13 Claims. (Cl. 101-220)
tives, modi?cations and equivalents as may be included
within the spirit and scope of the invention as de?ned
The present invention relates to rotary printing presses
and concerns, more particularly, a driving arrangement
for the printing couples on a rotary press unit.
It is the primary aim of the invention to provide an
improved drive for the printing couples of a rotary press 15
unit which substantially simpli?es and facilitates for the
press operator the task of conditioning each printing
by the appended claims.
Turning now to FIGS. 1 and 2, there is shown a press
unit 10 of the two printing couple type and including a
drive which embodies the present invention. The press
unit includes two main frame members 11 and 12 (see
FIG. 2) surrounded by a housing 13. The frame mem
bers and housing are formed so that the press unit, as seen
from each end, includes a pair of column portions 14
and 15 connected or spanned by an arch portion 16.
The printing couples of the press unit are de?ned by
With more particularity, it is an object of the invention 20
a pair of impression cylinders 21 and 22 which cooperate
to provide a drive of the above type in which control of
with plate cylinders 23 and 24 respectively. In addition,
the main printing couple drive is exercised entirely from
the press unit 10 is provided with an “extra color” plate
one side of the press unit without adding or subtracting
cylinder assembly 25 which includes an extra plate cylin
parts, opening housings or otherwise performing any messy
couple for direct drive, reverse drive, or “silent” non
driven condition.
or disagreeable task. It is a collateral object to provide a 25 der 26 journaled in suitable framing so as to cooperate
with the impression cylinder 21.
1
drive of this character which permits rapid as well as
The cooperating pairs of plate and impression cylinders
convenient control of printing couple rotation.
are geared at one side of the press for uniform and op
It is also an object to provide a selective drive as
posite rotation. In the illustrated construction, the im
described above which reliably locks in a selected condi
tion and clearly indicates the nature of the adjustment so 30 pression and plate cylinders 22, 24 are provided with ex
tended shaft portions carrying meshing helical gears 27
that the settings on a series of press units can be quickly
and 28 respectively. Likewise, the impression and plate
checked and the possibility of an erroneous setting mini
cylinders 21, 23 carry mutually engaging helical gears 29
and 30 respectively (see FIGS. 2 and 7). The extra plate
cylinder 26 carries a gear 31 positioned to cooperate with
the impression cylinder gear 29.
In keeping with the invention, the press unit 10 is"
driven
by a vertical power shaft 35 which is journaled in
In more detail, it is an object to provide a drive as char
acterized above which permits helical gears to be smoothly 40 the frame along the column portion 15 of the press unit.
A pair of bevel gears 36 and 37 couple the power shaft
meshed or disengaged so that the advantages of quieter
35 directly to a cross shaft 38 journaled along the arch
operation and smoother power ?ow inherent in helical
portion of the press unit frame. The cross shaft 38 de
drive gearing can be utilized.
livers power, through intremediate gears to be described;
In another aspect, it is an important object of the inven
to extending shaft portions 39 and 40' of impression cylin-E
tion to provide a press unit drive having exceptional ver
ders 21, ‘22, respectively. In this way, the power train
satility, particularly when incorporating a so-called “extra
driving the press unit moves up the column portion 15
color” plate cylinder assembly. More speci?cally, it is an
mized.
,
A further object is to provide a printing couple drive
of the above character which “opens up” the center of
the press unit to facilitate servicing and adjustment of the
other components of the press.
object to provide a drive of the above character that not
only permits the printing couples to be reversed-or sill,
and across the arch portion 16 so as to leave the center of
the press unit completely open and accessible.
_
Pursuant to the invention, a stub shaft ‘45 is journaled
enced, but also allows an “extra plate cylinder” to be 50 in the press unit frame parallel to the extending shaft‘
driven along with or in lieu of, the plate cylinder of the 7 portions 39, 40 of the impression cylinders and is pro
printing couples. In still more detail, it is a related ob
vided with a pair of gears 46 and 47 which'rotate in‘
ject to provide a particularly simple and compact drive
opposite directions and are driven by the gear 51 on the”
as just described that permits helical drive gears to be,
cross shaft 38'. The'cylinder shaft portions 39, 40 carry
axially shiftable gears 48 and 49, respectively which can‘
Other objects and advantages of the invention vwill be
be selectably shifted, into engagement with either one of‘
come apparent upon reading the following detailed de- '
the gears 46, 47 or into neutral position between the
scription and upon reference to the drawings in which: '
gears so as to alternatively condition each printing couple
FIGURE 1 is an elevation of a rotary press unit em
for direct or reverserotation or to silence the couple. In,
bodying the invention and including an extra color plate
the prefered embodiment, the gear 47 is keyed to the
cylinder;
‘
1 will I stub shaft 45 and the gear 46 is freely journaled on the
FIG. 2 is a fragmentary horizontal section of the
stub shaft. The cross shaft 38 is provided with a‘bevel
gear 51 which engages both a ‘first bevel gear52 keyed
unit shown in FIG. 1;
7
to the stub shaft 45 and a second bevel gear 53 carried
FIG. 3 is an enlarged fragmentary section taken ap
utilized.
proximately along the lines 3—3 of FIG. 2;
'
'
_
FIG. 4 is a fragmentary elevation taken along the line
by the drive gear 46. Thus, the drive provided by the
cross shaft 38 produces uniform and opposite rotation of
the two drive gears 46, 47. It can, therefore, be seen‘
_
that the direction'of rotation of the printing couples made
FIG. 5 is a section taken approximately along. the.
up’of cylinders 21,23 and cylinders 22, 24 depends upon‘
line 5—5 of FIG. 3;
FIG. ‘6 is a fragmentary, slightly enlarged section. taken 70 whether theirrespective cylinder gears 48, 49 are in_en'_-'
ga'gement with the drive gear 46 or the drive gear 47.’:
approximately along the line 6-—6 of FIG. 4;
'
4-4 of FIG. 3;
3,067,675
3
To silence the operation of either one of the printing
couples, sufficient space is provided between the drive
gears 46, 47 to permit the cylinder gears 48, 49 to be
positioned midway between the drive gears so that power
is not transferred to the printing couples. In this way,
each of the printing couples can be conditioned for direct
or reverse rotation or silenced.
One of the features of the drive arrangement shown
4
cylinders 22 and 24 is silenced. By running the nut mem
ber 68 to the position shown in dash lines 68b, the gear
49 is moved to the position shown in dash lines 4%
where it is in meshing engagement with the drive gear
47. In this way, rotation of the handwheel 62 alternatively
conditions the associated printing couple for direct drive,
reverse drive or breaks the drive to “silence” the printing
couple.
For indicating the setting of the slidable gear 49 and
lies in the fact that the drive gears 46, 47 and the shift
able cylinder gears 48, 49‘ are each helically toothed for 10 for locking the gear in any one of its alternate positions,
quieter operation and smoother power ?ow. In the illus
the handwheel 62 contains a pair of ring gears 81 and
trated construction, the cylinder gears 48, 49 are mounted
82 coupled together by a pair of pinion gears 83 and 84.
on sleeves 55- and 56, respectively, ?xed to the respective
The ring gear ‘81 is secured to the housing 13 and the
extended cylinder shaft portions 39, 40. To permit these
ring gear 82 is journaled freely within the handwheel 62.
helical gears to smoothly mesh as they are shifted into
Both ring gears 81, 82 are mounted coaxially with respect
or out of engagement, the shiftable gears 48, 49‘ and
their respective sleeves 55, '56 are provided with inter
?tting portions having a helical angle about the axis of
the respective shaft portions 319, 40 that bears a fixed rela
to the rod 66.
The pinion gears 83, 84 are locked to a common shaft
85 journaled in the handwheel web 64 and are in mesh
ing engagement with the ring gears 81, 82 respectively.
tion to the helical angle of the gear teeth formed on the
gears v48, 49 and the drive gears 46, 47. The helical angle
of the inter?tting portions on the sleeves 55, 56 and the
helical angle of the teeth of the gears 48, 49 are propor
The gear pairs 81, 83 and 82, 84 are formed with differ
between the cylinder shaft portions 39, 40* and the stub
counterclockwise direction.
ing gear ratios so that rotation of the handwheel 62 causes
rotation of the ring gear ‘82 in the same direction but at
a slower rate. The ring gear 82 carries a circular indicator
tional to the relationship between the pitch diameters of
dial 86 which is clearly visible through a circular aper
the respective inter?tting portions and gear teeth. In other 25 ture 87 formed in the handwheel 62. 'In the illustrated
words, the “lead” of the inter?tting portions on the gears
construction, the indicator 86 is divided into three seg
48, 49 and their respective sleeves 55, 56 is equal to the
ments 91, 92 and 93 arranged to cooperate with an indicia
“lead” of the helical teeth on the gears 48, 49. It can
mark 94 located on the handwheel 62. The parts are
therefore be seen that shifting the slidable gears 48, 49
assembled so that rotation of the handwheel 62 in a
axially causes the gears to move in a helical path so that 30 counterclockwise direction as viewed in FIG. 4 drives the
their gear teeth mesh smoothly with the gear teeth of
nut member 68 to the left in FIG. 3 and slowly rotates
the drive gears 46, 47 without requiring relative rotation
the ring gear 82 and thus the indicator plate 86 in a
shaft 45.
'
After the handwheel has
been rotated a sui?cient number of turns to position the
The plate cylinders 23, 24 are also provided with short
nut member 68 in its 68a location, the indicator 86 will
extending shaft portions 57 and 58 respectively which
have rotated 120 degrees so as to bring the segment 93
carry gears 59 that power the inking trains 60, only one
to the top of the indicator as viewed in FIG. 4. When the
of which is shown, that supply ink to the respective print
indica mark 94 is aligned with the center of the segment
ing couples (see FIG. 1).
93, the nut member 68 has reached its 68a position and
In carrying out the invention, the shiftable cylinder 40 the gear 49 will have been shifted to its “silence” or neu
gears 48, 49 are positioned ‘by handwheels 61 and 62
tral position between the drive gears 46, 47. Continued
respectively located outside of the press housing 13 and
rotation of the handwheel 62 in a counterclockwise direc
which both clearly indicate the position or setting of the
tion moves the nut member 68 to its 68b position and,
associated cylinder gear as well as lock the cylinder gear
when the indicator segment 92 underlies the indicia mark
in that position or setting. Since each of the handwheels
94, the shiftable gear 49 will have been moved into mesh
61, 62 are identical only one of these assemblies will be
ing engagement with the drive gear 47. The parts can, of
described in detail and for that purpose particular atten—
course, be returned to their alternate positions by rotating
tion is directed to FIGS. 3, 4 and 5 showing the handwheel
the handwheel 62 in a clockwise direction.
62 and its associated structure for shifting the gear 49,
The setting of the shiftable gear 49 is thus clearly ap
which is attached to and drives impression cylinder 22.
50 parent when looking at the dial 86. The condition of the
The handwheel 62 includes a generally cylindrical pe
drives in a series of press units like the unit 10 can be
ripheral portion 63‘ having an inner web 64 ending in a
thus quickly and conveniently checked by a press operator
sleeve that is keyed at 65 to a threaded rod 66 journaled
(vivallking along the units and glancing at the handwheel
in a generally cylindrical member 67 secured to the press
m s.
housing (see ‘also FIG. 2). A nut member 68 is thread 55
In order to lock the handwheel 62 against rotation when
ably mounted on the rod 66 and is provided with radially
the nut member 68 and the shiftable gear 49 are in one
extending projections 69 which are retained in slots 71
of their alternate positions, a pair of locking arms 101
formed in the cylindrical frame member 67 (see FIG. 5):
and 102 are secured to a rocking shaft 103 journaled in
It will thus be apparent that rotation of the rod 66 causes
the handwheel web 64 (see FIGS. 3 and ‘6). The arm 101
the nut member 68 to traverse the length of the slot 71. 60 hasv a foot portion 104 overlying a cylindrical ?ange por
Coupling the nut member 68 and the shjftable gear
tion of the ring gear 81 having a recess 105, andv the arm.
49 is a bearing 75 carried by the nut member 68 and
102 has a foot portion 106 which overlies a cylindrical
anchored to a cylindrical shell 76 which is rigidly secured
?ange 107 formed integrally ‘with the ring gear 82. The
to the shiftable cylinder gear 49‘. The bearing 75 rota
?ange 107 is formed with' a plurality of notches 108, 109
tively supports the shell 76 and also transmits the thrust 65 and 110 corresponding to and aligned with the segments
of the nut member 68 to the shell 76 as it is moved axially
91, 92 and 93 respectively of the indicator member 86
along the rod 66 while permitting the gear to‘ move in a
(see FIG. 4). The rocking shaft 103v is biased by a
helical path as it slides along the sleeve 56.
tensioned spring 111 so as to urge the arms 101, 102 to
In FIG. 3, the gear 49 is shown in the axial position.v
ward the flange portions of the ring gears 81, 82 respec
wherein it is in meshing engagement, with the drive gear; 70 tively-and the shaft‘ 103 projects from the handwheel 62
46. By rotating the handwheel 62 so as to run the nut
member to its dash line position 68a, the cylinder gear
49 is carried to the left to the position shown in dash
and is provided with a lever 112 which allows the shaft
to be'manually. rocked against the bias of the spring
lines 49a where it is located midway between the drive
It will-be seenthat' when the-foot portion 104 of the arm
gears 46, 47 whereby the printing couple made up of 75 101 is seated in the recess 105, formed in the ?xed ring
3,067,675
gear 81, the handwheel 62 is locked against rotation.
However, the foot portion 104 can only enter the recess
105 when the foot portion 106 of the arm 102 overlies
one of the recesses 108, 109, 110 formed in the ?ange 107
of the ring gear 102. As a result, the handwheel 62 is
6
tion 30a wherein it is in meshing engagement with the
gear 29 as shown in FIG. 2. With the gear 30 in the posi
tion shown in solid lines in FIG. 8, it is disengaged from
the gear 29‘ so that the plate cylinder 23 is silenced and
not driven.
For shifting the gear 30 between its two alternate posi
locked against rotation only in the three positions wherein
tions, a worm 126 and worm gear 127 are journaled in a
one of the recesses 108, 109, 110 underlies the foot por
tion 106 and, as has been pointed out above, these three
recesses are positioned on the ?ange 107 so that they
bracket 128 bolted securely to the press frame member 12.
The worm gear 127 is carried on a yoke member 129
underlie the foot portion 106 only when the handwheel 10 which is journaled on opposed arms 130 and 131 formed
integrally with the bracket 1-28. The yoke member 129
62 has been rotated so as to bring the shiftable cylinder
carries fork arms 132 and 133 which are secured to a ring
gear 49 into one of its three alternate positions of adjust
134 that is coupled to the shiftable gear 30 through a bear
ment.
To change the setting of the shiftable gear 49, the op
erator lifts the lever 112 so as to swing the foot portions
104, 106 out of the recesses and rotates the handwheel 62
in the proper direction as indicated by the arrows on the
‘face of the hand-wheel. As soon as the handwheel 62 is
ing 135 and a ?ange portion 136 forming a rigid extension
r of the gear 30. It can thus be seen that rotation of the
worm gear 127 so as to swing the fork arms 132, 133 from
rotated from its previously set position, the arms 101, 102
are moved relative to the underlying gears 81, 82 so that
the lever 112 can be released and the foot portions 104,
106 of the arms Will thereafter slide freely on the cylin
drical ?ange portions of the respective gears 81, 82 until
one of the notches 108, 109, 110 again moves into axial
alignment with the notch 105. At this time, the spring ~
111 rocks the shaft 103 to drop the foot portions 104, 106
into aligned notches and lock the handwheel 62, and thus
the shiftable gear 49, in the new operating position. in
this way the press operator receives a positive indication
that the desired repositioning of the shiftable gear has been.
accomplished.
the solid line to the dash line positions shown in FIG. 8
exerts a thrust force through the bearing 135 which tends
to shift the gear 30 from its full line position to the dash
line position 30a. It may be necessary to jog the press to
align the gears 30 and 29 so that theywill mesh.
For rotating the worm 126 and thus controlling theposi
tion of the shiftable gear 30, the worm is secured to a
socket member 140 having a square socket 141 accessible
through an opening 142 formed in the press unit housing
13. Therefore, to rotate the worm 126, a-square tipped
tool 143 is inserted through the opening 142 into the
square socket 141. Rotation of the tool drives the worm
126 which in turn rotates the worm gear 127 and positions
the shiftable gear 30.
.
In orderto lock the worm 126 in its positions'corre-,
sponding to the alternate positions of the shiftable gear 30,
To prevent inadvertent release of the locking arms 101,
a spring biased pin 144 is disposed in the socket member
102 and subsequent mispositioning of the shiftable gear
140 so as to engage a recess 145 in the housing, thus pre
49, a key operated lock 115 having an abutment 116 is
mounted in the handwheel 62. When the lock 115 is 35 venting rotation of. the worm. Upon insertion of the tool
143 a shoulder 146 on the tool engages the pin 144 and
turned to its locked position, the abutment 116 underlies
forces it against its biasing spring out of the recess 145 so
a lug 117 carried ‘by the rocking shaft 103. The lever 112
as to free the socket member 140‘ for rotation. It can be
seen that the worm 126 cannot be inadvertently rotated
unless the proper tool 143 is ?tted into the socket member.
abutment 116 rotated clear of the lug 117.
To insure that the proper number of turns are made by the
_ Further in accordance with the invention, provision is
worm to move the gear 30‘ fully into either position, the
made for selectively varying the drive from the impres
socket member 140 carries a second pin 147 which en
sion cylinder 21 so that the “extra color” plate cylinder
gages a notch 148 in a disk that is carried on a pinion
26 can be driven with, or in lieu of, the plate cylinder 23.
In the preferred embodiment, the gear 30, which is driven 45 gear 149. The pinion gear is in meshing engagement with
gear teeth 150‘ formed on the socket member 140 so that
by the gear 29 to rotate the plate cylinder 23, is slidably
therefore cannot be lifted to unlock the handwheel 62
until the key has been inserted in the lock 115 and the
mounted on an extending shaft portion 121 of the cylin
der 23 (see FIGS. 2 and 8). The gear 31, which drives
the extra plate cylinder 26 from the impression cylinder
-74
rotation of the socket member is accompanied by rotation
of the pinion gear. When the pinion gear 149 is rotated
from the position illustrated in FIG. 8 the slidable pin 147
gear 29, is similarly slidably mounted on an extending 50 is forced out of the notch 148 and is cammed into a recess
151 provided in the tool 143 to receive the end of the
shaft portion 122 of the plate cylinder 26 (see FIG. 7).
By selectively sliding either or both of the plate cylinder
gears 30, 31 into meshing engagement ‘with the impression
slidable pin. As the member 140 is rotated, the outer end
of the pin 147 passes under an arcuate retainer 157 which
holds the pin seated in the recess 151.‘ It will be apparent
cylinder gear 29, it can be seen that the extra plate cylin
der 26 or plate cylinder 23 may be driven or silenced as 55 that this locks the tool 143 in the socket member 140 un
desired.v
til rotation of the socket member drives the‘ pinion 149
through- one complete revolution bringing the recess 148,
opposite the shiftable pin 147. At this time the‘tool 143
for each of the gears 30, 31 is the same, only one will be
can be withdrawn, moving the pin 147 out of recess 151.
described in detail. It will be understood that both as
60 and into the notch 148. The gear ratio between the pin
semblies are similarly constructed.
Taking the shiftable gear 30 as exemplary, and with par
ion 149 and the teeth 150‘ on the socket member 140 is
ticular reference to FIGS. 7 and 8, the gear 30 is slidably
selected so that the notch 148 is positioned opposite the
mounted on a sleeve 125 secured on the extending shaft
slidable pin 147 only when the worm 126 has‘ been suf
portion 121 of the plate cylinder 23. The gear 30 and its
?ciently rotated to carry the shiftable gear 30 between its
Since the slidable mounting and axial shifting assembly
supporting sleeve 125 are provided with inter?tting spline 65 fully engaged and its fully disengaged positions. The
portions having a helical angle having the same propor
operator thus has a positive indication as' to whether or'not
tional relationship to the helical angle of the teeth of the
the worm 126 has been correctly positioned since he can
gear 30 as do the pitch diameters of the spline portions
only withdraw the tool 143' when the worm is in one of
and the teeth on the gear 30 so that axial movement of the
gear 30 causes the gear teeth to move through a helical 70
path and thus bring them smoothly into meshing engage
ment with the helically toothed gear 29 secured to the im
p'ression cylinder 21 when the teeth on the respective
gears are aligned. The gear 30 can thus be slid on the
its alternate positions.
'
'
2
-
‘
The worm gear 127 carries an arcuate indicator mem
her 155 which is visible through a window 156 in the
press housing 13.‘ The indicator member 155_bears .ap~
propriate indicia to visually indicate. Whether the‘ shiftable,
sleeve 125 to the right in FIG. 8 to the dashed line posi-. 75 gear '30 is positioned to' engage the ‘impression cylinder
3,067,675
7
gear 29, or is in the alternate position in which the plate
cylinder is silenced.
.
at right angles to said printing couples from said one
‘It can be seen that the above described assembly for
shifting the gear 30, is particularly compact as well as
being relatively simple and thus economical in design.
It will be understood that a corresponding assembly is
provided for shifting the gear 31 which is slidably at
tached to the extra plate cylinder 26.
We claim as our invention:
3
arch portion of said frame so as to extend substantially
‘
1. A printing press unit comprising, in combmation, a
frame including‘ a pair of column portions spanned by an
column portion toward the other column portion, means
rotatably coupling one end of said horizontal shaft and
said power shaft, and means rotatably coupling the other
end of said horizontal shaft with said extending shaft
portions for driving both of said printing couples. .
4. A printing press unit comprising, in combination, a.
frame, a pair of printing couples each including plate
said cylinders of each couple ‘being geared at one side
of said frame for uniform and opposite rotation, one cyl~
inder of each of said couples having an extending shaft
portion at the opposite side of said frame, a- stub shaft
journaled in said frame arch portion at said opposite side
equidistant from said extending shaft portions, a pair of
and impression cylinders journaled in said frame, the 1m
pression cylinder of each of said couples having an ex
tending shaft portion at one side of said frame, a stub
shaft journaled in said frame at said one side equidistant
from said extending shaft portions, a pair of drive gears
on said stub shaft, one of said drive gears being secured
for rotation with said stub shaft and the other drive gear
being journaled on said stub shaft, a generally vertical
power shaft journaled in the frame at said one side, means
rotatably coupling said power shaft with both said stub
drive gears on‘, said stub shaft, one of said drive gears
shaft and said other drive gear so as to rotate said drive
arch portion, a pair of printing couples each including
plate and impression cylinders journaled in said frame,
being secured for rotation with said stub shaft and the
gears at equal speeds in opposite directions, shiftable gears
other drive gear being journaled on said stub shaft, a gen
on each of said extending shaft portions for selectively
erally vertical power shaft journaled in the frame at said
coupling said impression cylinders with either of said
opposite side alongone of said column portions, a cross
drive gears, an extra plate cylinder journaled in said
shaft journaled'in' said frame and extending between said 25 frame in operative relation to the impression cylinder of
power shaft and said stub shaft, means rotatably coupling
one of said couples, said last mentioned impression cyl
one end of said cross shaft and said power shaft, means
rotatably coupling the other end of said cross shaft with
inder having a gear secured thereto at the opposite side
of said frame, the plate cylinder of said one, couple and
both said stub shaft and said other driving gear so as to
said extra plate cylinder each carrying axially shiftable
rotate said drive gears at equal speeds in opposite 30 gears at said opposite side of the frame adapted to mesh
directions, and shiftable means on each of. said extending
with said impression cylinder gear, and means for shift
shaft portions for selectively coupling said printing
ing said last mentioned gears into and out of driving en
couples with either of said‘ drive gears, or uncoupling
gagement with said impression cylinder gear.
them for non-operation‘.
5. A printing press unit comprising, in combination, a
2. A printing press unit comprising, in combination, a
frame, a pair of printing couples each including plate
frame including a pair of‘column portions spanned by an
arch portion, a pair of printing couples each including
plate and impression cylinders journaled in said frame,
and impression cylinders journaled in said frame, the im
pression cylinder of each of said couples having an ex
tending shaft portion at one side of said frame, a stub
said cylinders of each couple being geared at one side of
shaft journaled in said frame at said one side equidistant
said frame for uniform and opposite rotation, one cyl~ ~10 from said extending shaft portions, a pair of helically
inder of each of said couples having an extending shaft
portion at the opposite side of said frame, a stub shaft
journaled in said frame arch portion at said opposite side
equidistant from said extending shaft portions, a pair
of helical drive gears on said stub shaft, one of said drive
gears being secured for rotation with said stub shaft and
the other drive gear being journaled on said stub shaft,
a generally vertical power shaft journaled in the frame at
said‘ opposite side along one of said column portions, a
cross shaft journaled in said frame and extending be
tween said power shaft and said stub shaft, means rotatably
coupling one end of said cross shaft and said power shaft,
means rotatably coupling the other end of said cross
shaft with both said stub shaft and said other driving
gear so as to rotate said drive gears at equal speeds in op
posite directions and a helical gear slidably mounted on
each of said extending shaft portions for selectively
coupling said printing couples With either of said drive
toothed drive gears on said stub shaft, one of said drive
gears being secured for rotation with said stub shaft and
the other drive gear being journaled on said stub shaft, a
generally vertical power shaft journaled in the frame at
said one side, means rotatably coupling said power shaft
with both said stub shaft and said other drive gear so as
to rotate said drive gears at equal speeds in opposite di
rections, shiftable helically toothed gears helically splined
on each of said extending shaft portions for selectively
coupling said impression cylinders with either of said
drive gears, an extra plate cylinder journaled in said
frame in operative relation to the impression cylinder of
one of said couples, said last mentioned impression cyl
inder having a helically toothed gear secured thereto at
the opposite side of said frame, the plate cylinder of said,
one couple and said extra plate cylinder each carrying"
helically splined, axially shiftable, helically toothed gears
at said opposite side of the frame adapted to mesh with
gears, said last-named gears being mounted on helical
said impression cylinder gear, and means for shifting said
splines so that their sliding movement follows a helical 60 last mentioned gears into and out of driving engagement
path to bring said slidable gear into smooth meshing en
with said impression cylinder gear.
gagement with said drive gears Without rotation of the
6. A printing press unit comprising, in combination,
plate and impression cylinders of the couples.
a frame, a pair of printing couples each including plate
3. A printing press unit comprising, in combination, a
and impression cylinders journaled in said frame, the
frame including a pair of column portions joined by an 65 impression cylinder of each of said couples having an
arch portion, a pair of printing couples each including
extending shaft portion at one side of said frame, a stub
plate and impression cylinders journaled in the arch por
shaft journaled in said frame at said one side equidistant
tion of said frame with. the couples being horizontally
from said extending shaft portions, a pair of drive gears
spaced from one another, said cylinders of each couple
on said stub shaft, one of said drive gears beingsecured
being geared at one side of said framefor uniform and 70 for rotation with said stub shaft and the other drive gear
opposite rotation, one cylinder of each of said couples
being journaled an said stub shaft, a generally vertical
having an extending shaft portion at the opposite side
power shaft journaled in the frame at said one side, means
of said frame, a generally vertical power shaft journaled
rotatably coupling said power shaft with both said stub
in the frame at said opposite side along one of said column
portions, a horizontally journaled shaft supported by the 75 shaft and saidother drive gear so as to rotate said drive
gears at equal speeds in opposite directions, shiftable
8,067,675
.
gears on each of said extending shaft portions for
selectively coupling said impression cylinders with either
of said driVe gears, a threaded rod coupled to each of said
shiftable gears for shifting their respective gears upon ro
tation of the rods, means for locking each of said rods
10
differing gear ratios so that rotation of said hand wheel
causes slower rotation of said indicator member, a pair
of rigidly connected locking arms movably mounted in
said hand wheel each having a foot resting on a respective
one of said gears, said ?rst ring gear having a depression’
in alternate rotational positions, an extra plate cylinder
journaled in said frame in operative relation to the im
underlying one of said feet, said second ring gear having
pression cylinder of one of said couples, said last men
troned impression cylinder having a gear secured thereto
at the opposite side of said frame, the plate cylinder of
said one couple and said extra plate cylinder each carry
ing axially shiftable gears at said opposite side of the
frame adapted to mesh with said impression cylinder gear,
to underlie the other of said feet so that the ?rst and
a plurality of circumferentially spaced depressions adapted
second ring gears, and thus said hand wheel, is locked
when said feet are seated in the respective depressions, and
means on the exterior of said hand wheel for shifting said
arms to lift said feet from the depressions whereby the
hand wheel is freed for rotation the predetermined num
ber of times required to bring the next second ring gear
a worm and Worm gear for shifting said last mentioned
gears upon rotation of said worm into and out of mesh 15 depression beneath its associated foot.
10. In a printing press having a frame containing an
with said impression cylinder gear, and means for locking
axially shiftable gear for varying the drive to a printing
said worm in position.
couple, an assembly for axially shifting said gear com
7. In a printing press having a frame journaling a
printing couple, a drive for said couple comprising, in
combination, an extending shaft portion forming part
prising, in combination, a rod journaled in said frame and
having one end extending from the frame, means coupling
of said printing couple, a sleeve secured on said shaft por
said rod and said shiftable gear so that rotation of the
rod shifts the gear, a hollow cylindrical hand wheel se
tion, a helically toothed ring gear slidably mounted on
cured to the extending end of said rod, a ?rst ring gear
said sleeve, said gear and said sleeve having inter?tting
within said hand wheel secured to said frame, a second
portions keying the gear to said sleeve, said inter?tting
portions having a helical angle about the axis of said 25 ring gear within said hand wheel journaled relative to
said rod and carrying an indicator member visible from
shaft portion that is related to the helical angle of said
the outside of said frame and hand wheel, pinion gears
ring gear teeth as are the pitch diameters of said portions
journaled on said hand wheel and rotatably coupling said
and said teeth, a pair of oppositely driven helical gears
?rst and second ring gears, said ring and pinion gears
spaced on said frame so that said ring gear can be selec
having differing gear ratios so that rotation of said hand
tively slid into meshing engagement with either of said
wheel causes slower rotation of said indicator member,
driven gears, a threaded rod journaled coaxially of said
and a lock for holding said hand wheel in any one of a
shaft portion in said frame and carrying a handwheel
accessible from the outside of said frame, a nut threaded
on said rod, said nut having a neck portion slidable in a
slot for-med in said frame parallel to said rod, a rotatable
bearing carried on said nut, and a rigid member coupling
plurality of adjusted positions indicated by di?erent rela
printing couple, a drive for said couple comprising, in
combination, an extending shaft portion forming part of
said gear and said sleeve having inter?tting portions key~
ing the gear to said sleeve, said inter?tting portions having
said printing couple, a sleeve secured on said shaft portion,
a helically toothed ring gear slidably mounted on said
a helical angle about the axis of said shaft portion that is
related to the helical angle of said ring gear teeth as are
sleeve, said gear and said sleeve having inter?tting portions
keying the gear to said sleeve, said inter?tting portions
having a helical angle about the axis of said shaft portion
the pitch diameters of said portions and said teeth, a
tive positions of said indicator member and said hand
wheel.
'
11. In a printing press, the combination comprising,
a frame, a pair of cylinders journaled in said frame de
said bearing and said ring gear for transmitting the linear
?ning a printing couple, said cylinders being geared to
movement of said member to said slidable ring gear and
gether for uniform and opposite rotation, one of said
thus enabling said ring gear to be shifted into and out of
engagement with said driven gears by turning said hand 40 cylinders having an extending shaft portion, a sleeve ?tted
onto said extending shaft portion and keyed thereto, a
wheel.
helically toothed ring gear slidably mounted on said sleeve,
8. In a printing press having a frame journaling a
that is related to the helical angle of ring gear teeth
as are the pitch diameters of said portions ‘and said
teeth, a helical gear on said frame, a Iworm journaled in
said frame and carrying a drive portion accessible from
the outside of said frame, a worm gear in engagement
driven helical gear journaled on said frame so that said
ring gear can be selectively slid into and out of meshing
engagement with said driven gear, an actuating member
mounted coaxially with respect to said ring gear, a bear
ing coupling said actuating member and said ring gear
for relative rotation and axial translation, and means
for shifting said member axially so as to slide said ring
gear into and out of engagement with said drive gear.
with said worm, said worm gear having an arm swingable
12. In a printing press, the combination comprising,
parallel to said shaft portion, a rotatable bearing secured 55
a frame, a pair of cylinders journaled in said frame de
to said arm, and means coupling said bearing and said
?ning a printing couple, said cylinders being geared to
ring gear for transmitting the linear component of move
gether for uniform and opposite rotation, one of said cyl
ment of said arm to said slidable ring gear and thus
inders having an extending shaft portion, a sleeve ?tted
enabling said ring gear to be shifted into and out of
onto said extending shaft portion and being keyed there
engagement with said driven gear by rotating said worm
to, a helically toothed ring gear slidably mounted on said
drive portion.
9. In a printing press having a frame containing an
sleeve, said gear and said sleeve having inter?tting portions
keying the gear to said sleeve, said inter?tting portions
couple, an assembly for axially shifting said gear compris
having a helical angle about the axis of said shaft portion
ing, in combination, a rod journaled in said frame and 65 that is related to the helical angle of said ring gear teeth,
axially shiftable gear for varying the drive to a printing
having one end extending from the frame, means coupling
as are the pitch daimeters of said portions and said teeth,
said rod and said shiftable gear so that rotation of the
a driven helical gear journaled on said frame so that said
rod shifts the gear, a hollow cylindrical hand wheel se
ring gear can be selectively slid into and out of engage
cured to the extending end of said rod, a ?rst ring gear
ment with said driven gear, an actuating member mounted
within said hand wheel secured to said frame, a second 70 coaxially 'with respect to said ring gear, a bearing coupling
ring gear within said hand wheel journaled relative to
said actuating member and said ring gear for relative ro
said rod and carrying an indicator member 'visible from
the outside of said hand wheel, pinion gears journaled
on said hand wheel and rotatably coupling said ?rst
tation and axial translation, a worm and worm gear for
shifting said member axially upon rotation of said worm
and second ring gears, said ring and pinion gears having 75 so as to slide said ring gear into and out of engagement
3,067,675
1l
with said driven gear, and means for locking said worm
in alternate rotational positions.
13. In a printing press, the combination comprising,
12
meshing engagement with said driven gear, an actuating
member mounted coaxially with respect to said ring
gear, a bearing coupling said actuating member and said
ring gear for relative rotation and axial translation, a
threaded rod in threadable engagement with said member
for shifting the member axially upon rotation of the rod
a frame, apair of cylinders journaled in said frame de
?ning a printing couple, said cylinders being geared to
gether for uniform. and opposite rotation, one of said
cylinders having an extending shaft portion, a sleeve ?tted
so as to slide said ling gear, into and out of engagement
with said drive gear, and means for locking said rod in
onto said extending shaft portion and being keyed thereto,
a helically toothed ring gear slidably mounted on said
alternate rotational positions.
sleeve,‘ said gear and said sleeve having inter?tting por 10
References Cited in the ?le of this patent
tions keying the gear to said sleeve, said inter-?tting por
tions having a helical angle about the axis of said shaft
UNITED STATES PATENTS
portion that is related to the helical angle of said ring gear
teeth as are the pitch diameters of said portions ‘and said
teeth, a driven helical gear journaled on said frame so 15
that said ring gear can be’ selectively slid into and out of
1,522,086
‘1,640,977
Terry et a1. __________ __ Jan. 6, 1925
Brueshaber __________ _._ Aug. 30, 1927
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