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Dec. 3, 1946.. .
‘E. F. DEL'L
2,412,132
PRINTING fRESS
Filed Dec. 5, 1942
. 4 Sheets-She'ét 1 '
22%;;
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_ Dec. 3; 1946.
.
E. F. DELL
2,412,132
PRINTING PRESS
'
- Filed‘Dec. 5, 1942
4 Sheets-'-Sheet 2 ' '
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‘
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fé:
Patented Dec. 3, 1946
2 412,132
UNITED STATES PATENT OFFICE
PRINTING PRESS
Edward F. Dell, Chicago, 111., assignor to David
son Manufacturing Corporation, a corporation
of Illinois
1
Application December 5, 1942, SerlalNo. 467,924
15 claims. (01. 101-232)
A printing press is now being manufactured by
the Davidson Mfg. .Corporation covered by vari
ous patents and patent applications which is suit
able f,or both offset lithographic printing and di
rect printing. This press delivers both types of
printing with its printed side up for the sake'lof
visibility, but prints the under face of the sheet
when printing lithographically and the top face
of'the sheet in direct printing. This makes pos
sible great simplification of the two-purpose press
2
the embodiment of the invention \chosen for il
lustration arranged for direct printing;
Fig. 2 shows a plan view of the‘conveyor of
Fig.1;
Fig. 3 is a sectional view through‘ the conveyor
table taken approximately on the line 3-3 of
Fig. 1;
,
>
,
Fig. 4 is a similar view taken approximately on
the line 4-4 of Fig. 1;
'
Fig. 5 is‘ a fragmentary view corresponding to
but the result is that the sheet has to be turned
Fig.
1 but showing the invention arranged for
over in the case of lithographic printing and is
offset printing;
not turned over in the case of direct printing.
Fig. 6 is a transverse vertical sectional view
To accomplish the optional turn-over simply, the
vsheets are discharged at different places for the. 15 taken approximately on the line 6-6 of Fig. 1;
Fig. 7 is a fragmentary sectional view taken
two types of printing. The press was initially
approximately on the line 1--'| of Fig. 6;
’
equipped with a collection box which could be
Fig.
8
is
a
fragmentary
sectional
view
taken
positioned at either point of discharge. This
approximately on the line 8—'-8 of Fig. 6; and
press proved to be very satisfactory in. spite of"
9 is a sectional view taken approximately
the fact that occasional attention was necessary 20 onFig.
the line 9-9 of Fig. 6.
in order to remove the printed sheets from the
A preferred form of the invention hasbeen
collection box before it got too full.
'
chosen for illustration and description, in com
The feeding mechanism of the press includes a
pliance with section 4888 of the Revised Statutes‘...
pile elevator so that a large pile of sheets can
be printed. _A similar pile-moving mechanism 25 but persons skilled in the art will readily per
ceive other means for‘ ‘accomplishing the same
for lowering ‘the pile at the discharge end of the
results, and the claims are therefore to be con
press ‘was recognized as desirable but its-pro
‘strued as broadly as possible, consistent with the
vision was complicated by the necessity for de
prior art.
livering the sheets at two different positions in
order to turn the lithographed sheets over in a 30
simple manner. Furthermore, this optional turn
over complicated the timing situation with re
spect to the joggers which would be provided in
connection with pile mechanism since the sheet
would naturally take longer to get to the logger
when turned over than when not turned over.
The side Joggers should be moved apart when a
sheet is delivered between them.
The invention is illustrated in conjunction with
a press A having a large cylinder i2 and a smaller
cylinder l3. For lithographic printing, the large
cylinder may be provided with av plate or platen
on different portions thereof while the small cyl
inder is provided with a blanket so that the blan
ket receives the image from the plate and trans
fers it to the under side of the paper which is
fed between the blanket and the platen. A'pair
of chains 14 are provided with a gripper mech
According to the present invention, these dif
ficulties have been completely overcome and a 40 anism it which ‘carries'the sheets into the print
ing bite, strips (them from the‘ printing rolls l2
very simple mechanism has been provided for
, and I3, and carries them around guide wheels I‘!
carrying the sheets to the pile- stacking mecha
to turn them over so they will be delivered with
nism from either of the two positions of release
their printed sides up.
-'
from the press and for correcting the timing of
the Joggers to fit the circumstances.’ The receiv 45 For direct printing, it is most- desirable to have
ing of the sheets from either position is accom
the direct printing plate on the cylinder I! so
plished by a very simple form of extensible and
that the same inking unit may be used as for off
tiltable conveyor. In extending the conveyor, it - set printing. The result is that the upper face
is not necessary to make any adjustment since the
'of the sheet is printed and it is, therefore, de
’ belts are, in e?ect, automatically paid out as the 60 sirable to deliver the sheet without turning it
extension requires.
_
Additional advantages. and objects of the in
over. To this end, a release cam I8 is provided
as shown in Fig. 1 which releases the leading end
vention will be apparent from the following de- _
of the sheet just before the gripperv l8 passes
scription and from the drawings in which
around the guide wheels i1. Traction wheels I!
Fig. l is a fragmentary side elevation showing 55 may be provided to cooperate with wheels I‘! ‘to.
2,412,188
3
insure the continued forward movement of the
sheet.
7.
For offset printing, where the under face of the
sheet is printed, the cam I6 is shifted to an in
including bars 42 which slides in, the-side frames
34 to elongate or shorten the conveyor. ‘ Consid
'ering only the rollers 32 and 4|, it would be ap
' parent that as they are moved toward one an
other from the extended position of the conveyor
to the shorter position of the conveyor there
around the guide wheels I‘! carrying the sheet
would be a considerable excess of length‘ of the
with it until the gripper release mechanism is
conveyor belts 33 to dispose of. Of course, there
engaged by cam 2| when the sheet is released,
are automatic belt tightening devices,‘ but for the
preferably striking a stop ?nger immediately aft
erwards so thatits forward movement will be 10 most part, these are notsuitable for taking up
large lengths of belting such as would have to be,
checked and'it will be dropped downwardly.
operative position and the gripper |6 passes '
taken up for such a shortening of the conveyor.
The conveyor table B of this invention is
_Furthermore, such tightening devices or auto
adapted to be adjusted so as to receive the sheet
matic tensioning devices would put a tension on
when it is ejected, at its upper position, as seen
in Fig. 1, or when it is released in the lower posi 15 the belts which would tend to draw the rollers 32
and 4| toward one another but for the additional
' tion, as seen in Fig. 5. 'It will be observed that in
features of this invention.‘
the Fig. '1 position, the conveyor is much shorter
. According to this invention, the 'retum run of '
than in its Fig. 5 position. y In Fig. 1, it need
the conveyor belts 33 does not run directly from
merely reach‘ approximately to the ‘guide wheels
roller 32 to roller 4| but instead runs around idler
l'l whereas in Fig. 5, it must reach in under the
rollers 43 and 44 so that it doubles back upon it
guide wheels l1 so as to receive the sheet as it
self intermediate the rollers 32 and 4|. The roll
is dropped after being. turned by passing around
er 43 is rotatably carried by the side plates 34
' the guide wheels |'|. According to the‘present
while the roller 44 is rotatably carried by the ex_
invention, the conveyor is .not only pivotally
mounted to be raised and lowered between the 25 tension bars 42. Speci?cally, the roller 44 may
be rotatably mounted in bearing blocks 46 each
two positions, but it is also extensible so as to be
of which is rigidly carried by one of the bars 42.
shortened or elongated as required. It is desir
The roller 4| may be carried by the bars 42 in
able for the end of the conveyor table B which is
the same manner. The bearings are preferably
remote from the press to have a ?xed'position for
'
'
cooperating with the stacking mechanism C. In 30 ball-bearings.
Since the rollers 4| and 44 are both mounted
fact, it is only when such a stacking mechanism
on the extension bars 42 and since each 01’ them
is, used that the conveyor table B is essential be
has two runs of the belt extending away there
cause if a mere collecting pan is used, that may
' be placed in the twoipositions rorvreleasing- the
sheets.
As a matter of fact, a, small jogging
mechanism may likewise be placed in these two
positions, and in each instance be connected to
be driven by the'press. The stacking mechanism
C, however, is that ‘which is known as a pile Jog
from, the runs from one extending in a direction
opposite to the direction in which they extend
from the other, it follows that the tension on ~the
belt exerts the same force on the extension bars
42 in opposite directions and hence the tension
on the belt will have no tendency to move these
ger since it is provided with a platform 23 which' 40 extension bars and this tension will, therefore,
may be raised at the beginning of an operation
not move the roller 4| toward the roller 32. Fur-'
'and which is .gradually lowered as successive
thermore, as the roller 4| is moved, say six inches
in shortening the conveyor, the roller 44 will like
sheets are placed on it so that the top of the
wise move six inches in the same direction, and
stack will always be at a suitable height for
' v twelve inches of each belt which is thus freed at
receiving sheets between Joggers 24. Thus suc
cessive sheets will be logged into a position accu
roller 4| will be consumed or taken up at roller
rately allned with the remainder of the stack or
44.
'
'
pile.
-
‘
The extension bars 42 are rigidly ‘spaced from
The frame 26 of the stacker or pile Jogger is
one anotherand formed into a frame by'bracesv
properly positioned with respect to the press A by 50 41 and hence they may fit into open sided slots
braces 21 and 26, which are adjustable to control
in the side plates 34. It is not necessary to lock
the tension of driving belt 63.
this extension in place since the tension of the
belt has no tendency to move it. However, to
Extensible conveyor
prevent its shifting due to vibration and the like,
The conveyor table B is mounted at its delivery
a thumb screw 43 is preferably provided. '
Movement of the extension. frame or bars 42 inv
end on shaft 3| which is journalled in therrame
26 and carries roller 32 by which the vconveyor
a collapsing direction is restricted by engagement
belts or tapes 33 are ‘driven. The main frame of
the conveyor table is made up of plates or side
of the lugs 43 which carry roller 4| with the end
surfaces of side frames 34. The extending move
frames 34-and suitable braces 36 extending be 60 ment is limited by engagement of braces 41 ad
tween them and securing them to each other in
jacent roller 44 with a stop member 6|. The stop 7
properly spaced relationship. The side frames
member may conveniently be a' small bar secured
34 are pivoted to the shaft 3| at the delivery end
by screws across the channel receiving one of the
of the conveyor while their other ends are sup
bars
ported adiustably at the desired height by piv
oted bars 31' which, asseen best in Fig. 1, are
pivoted at their lower ends to brace". The side
42.
_
_
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In order to keep the sheets properly positioned
on the conveyor belts so that they will enter be
tween the joggers 24, guide plates 63 are provided,
the guide plates being adjustably ‘carried as best
~ by means of thumb screws 36 threaded in brack
seen in Fig. 3 by bar 46. _As seen in Fig. 2, the
ets 33 on side frames 34. when the screws 33 70 receiving end portions 64 of guide plates 63 are
are loosened, the bars 31 slide freely through the '
?ared out so that they will guide a sheet into
brackets 33 so that the table may be raised and i the space between them whenv the sheet ep
proaches longitudinally of the conveyor table.
lowered about the shaft 3|. '
*
, The end roller 4| at the receiving end of the
Likewise, as seen best in Fig. 4. the upper portion
conveyor table is carried by an extensionframe 76 66 of the guide plates '63 are ?ared outwardly and
bars are held at the‘ desired position on bars-31
2,412,182
""
5.
upwardly along 'a substantial portion of’ the
the spring _'10.' In this manner, the single rod
length of the guide plate so as to properly guide
between the guide plates the tail end of a sheet
which may ?ip off of guide wheels I‘! and land
between them when the apparatus is in the po
Sition shown'in F18. 5.
'
_
61 in spite ofbeing shifted to push with one set
ting and to pull with the other setting is enabled
to perform the same function with perfect tim
ing under bothv sets of conditions. In each in
.
stance, the jog'gers are given a quick stroke which,
Although, ‘as seen in Fig. 3, the belt guides 63
are provided with ?anges which may lie under
a
two of the belts 33, the construction is such as‘
to permit their easy movement'to different belts 10
a fraction of the time required for a cycle of the
D1888.
ing thumb screws 63' and 45', the guides may be
its center a pair of arms 14 for operating the
.end jogger 6 I. _. This jogger is mounted on slide‘
rods‘ 15 which slide in slides 16 being urged in a
for wider or narrower sheets. Merely by loosen
shifted apart slightly, lifted off together with bar
45 from the side plates .34, spaced‘approximately ‘
to the new spacing and again dropped down be
side the belts at that position. There will usual
ly be/ at least four belts as seen in Fig. 2.
with movement in both directions, occupies only
Lever 66 is keyed to shaft 1| which bears near
jogging direction by springs 11. In the opposite
15 direction, the rods 15 are actuated by studs 18
on the arms 14 which engage, plates 19 on’ rods
- '
‘15. -At least one of the plates 19 is preferably
The conveyor belts 33 are driven by roller 32
adjustable so that both rods will be actuated at
as previously mentioned, the roller 32 preferably
once. V Inasmuch as
sheet must pass over this .
being knurled or ?uted and being driven through 20 Jogger 6|, it is lower the
than the top of the pile and
gears by a pulley 61 which in-turn is driven by a
hence there is no necessity for its being ‘timed
belt 58, the belt 58 being driven from a pulley 69
to operate at the same time as the J'oggers 24.
on the press, this pulley being driven by the press . . It jogs when the side Joggers
24 open. The jog
drive. A belt guide 50 is provided for each belt,
ger 6| may jog the sheets against any suitable
these belt- guides preferably being laterally ad
?xed plate (not shown) adiustably positioned to
justable on bar 52 carried by links 55. The ten
bear against the other ends of the sheets. sion on the belts may be increased by pushing the
Pile lowering mechanism
links 55 and bar 52 downwardly and tightening
' the securing screws 60.
The shaft 1| also operates a pile lowering
30 mechanism. A lever 8| is secured to the shaft
1| at the opposite end thereof vfrom the link 66.
In order to keep the-pile even, the‘sheets are
Through a turn buckle'82 it operates a collar 83
‘jogged into registration thereon by side joggers
which carries a pivoted and spring-urged pawl
_
Joggers
I
‘
I
24 and end jogger H. The side Joggers 24 are op~
84 which either rides on control plate 86 or en
gages a ratchet wheel 81. The control plate 86
taneously in opposite directions by a slotted cam
can be rotated to any desired position and r‘e~‘
block 634. -Each of the loggers 2a is secured in an
tained there by spring detent 88 engaging a, gauge ,
adjustable position on one of the barsand slides
plate 89. The‘position of the control plate 86
on the other so that the Joggers are moved toward
determines the amount that the ratchet wheel
one another with one stroke of the cam block 63 40 81 is rotated during the stroke of pawl 84 and
and away from one another with the return
hence during each cycle of the press. The set
stroke. The cam block 631s operated by a link
ting desired Will depend upon the thickness of
66 which is pivoted in lever 66. The lever 66 is
the sheets.
,
‘
rocked by rod 67 which is pivoted at its further
The ratchet wheel 81 drives a worm 9| which
end to lever 66 which in turn is rocked in timed
in turn drives a worm wheel 92 keyed to shaft~
relationship with the press as clearly seen in
93., The shaft 93 has sprockets 94 keyed there
Fig. 5. It may be noted incidentally that this
to.. A chain ~96 runs over the sprockets and
erated by bars 62 which are reciprocated simul
same lever may also operate the feeding ,mecha- '
nism so that both the feeder and the Joggers will
be operated inproper ‘timed relationship with '
the press.
_
It is important for the logger to be operated
in timed relationship to the press so that the.
chains are properly straightened out as they hang
Joggers will be relatively widely separated when
down from the sprockets.
the sheet passes between them so that they will .
not obstruct movement of the sheet.
The timing of the jogger must be different for
the two positions of the apparatus shown in Fig.
1 and Fig. 5. The sheet travels at the same
speed in both ?gures but has considerably fur
ther togo in Fig. 5 than in Fig. 1. This varia
tion in timing is accomplished by shifting the
position of rod 61 on the lever 66. Thus in Fig.
vll, it is seen that the rod 61 is linked to the lever
66 above the shaft 1| on which it is mounted,
while in Fig. 5, the rod 61 is linked to the lever
66 below the shaft 1|. Conveniently the cone
‘ nection between the rod 61 and lever 66 may be
a swivelledblock 12 which is open at its top so
that the bar 61' may simply be set into either
‘ one of the swivelled blocks 12.
The bar 61 is
raises andlowers the pile platform 23 which is
carried by suitable carriages 97 indicated by Fig.
6. The other end of the chain 96 may desirably
be counterwelghted' although the weights may
wellv be, only heavy enough to ensure that the
'
.
To raise the platform 23 at the beginning of a
press run or to properly position the pile at any
time, the worm may also be turned by the crank.
91, operating through gears 98.
Suitable means a
should be provided for releasing the pawl 84
60 from the ratchet 81 while the crank 91 is being _
operated. This may be a pin 99 projecting from
the housing (not shown) to be held out manu
ally. while the crank is turned. Automatic
means may be provided if desired for holding
pawl 84 out of operation when the platform
reaches the bottom.
‘
a
_
If desired, infra-red lamps may be directed on
the top of the pile for drying the ink exposed on
each sheet before the next sheet is deposited
thereon.
From the foregoing, it is seen that a press -
provided with spaced lugs‘ 13. The lugs 13 may
desirably be adjustable. In each. position, the
lever 66 is really operated by only one of the lugs
' in which either side of the sheet can be printed
13, it being actuated in the return direction by
printed faces up on the pile mechanism. Al
and pile Jogger combination has been provided
and the sheets in either event stacked with their
2,412,182
3. A printing press including a pair of printing 7
though the sheet has to be turned over in one
cylinders adapted to print either face of the sheet,
instance and not in the other and hence may be
delivery means adapted to turn the sheet over and
released from the press proper at". either .of two
release it at one position in case the under face.
positions, a conveyor is provided, the receiving
is printed and to release it‘ at another position
end of which can be shifted between the two CI ‘without turning it over when the upper face‘ is ‘_
this
purpose,
it
is
neces-'
positions. Although for
printed, a pile jogger mechanism, a conveyor for
saryv for the conveyor to be elongated and short
1 delivering the sheets from either of said positions
ened as well as pivoted, a conveyor is provided
which is capable of such elongation and short
ening without the necessity of any belt adjust‘
ments and by a simple telescopic action. Fur-‘
thermore, a very simple means is provided for
changing the timing of the joggers so that with
either type of printing, in spite of the fact that
the,travel of the sheet takes longer- in one in
‘ stance than in another, the joggers will be widely
, separated at the time that the sheet is delivered
{
tothe pile jogger mechanism, means for driving ,
the pile jogger mechanism in timed relation with
the press to open the pile jogger as a sheet is
delivered, said conveyor including an extendable
portion adapted to pivot about a point of dis
chargeithereof whereby it may be pivoted, and
extended or collapsed to properly position its re
ceiving end for sheets released at either posi
tion.
-
4. A printing press including a pair of print
between them. .
ing cylinders adapted to print either face of the
I clainras my invention:
' v
adapted to turn the sheet
l. A printing press including a pair of printing 20 sheet, delivery means
over
and
release
it
at
one position in case_the
cylinders adapted to print either face of the
under face is printed and to release it at another
’
adapted to turn the sheet
it atone position in- case the
’ position without turning it over when the upper
face. is printed, a pile jogger mechanism, means
for,
driving the pile jogger mechanism inv timed
position without turning it over when the upper 25
relation with the press to open the pile jogger
face is printed, a pile jogger mechanism, means
as a sheet is delivered, and a conveyor for de
for driving the pile jogger mechanism in timed
' livering the sheets from either of said positions
to
open
the
pile
jogger
relation with the press
to the pile jogger mechanism pivotable about a
as a sheet is delivered, and a conveyor for'deliver
point spaced along the conveyor from its receiv
ing the sheets from either of said positions to 30 ing
end including at least one endless belt, the
the pile jogger mechanism pivotable about a
working run of which runs forwardly from a
point spaced along the conveyor from its receiv
shiftable end roller at the receiving end of a
ing end including at least one endless belt, the r portion of the conveyor and the returnrun of
working 'run of which runs forwardly from a shift
which extends rearwardly to a roller at 'a‘fixed
able end roller at the receiving end of a portion
position, forwardly around a second shiftable
of the conveyor and the return run of which
roller and rearwardly to said end roller, and a
under face is printed and tolrelease it at another
extends rearwardly to a roller at a ?xed posi
frame on which said shiftable rollers are both
tion, forwardly around a second shiftable roller
mounted, said frame being shiftably mounted
and rearwardly to said end roller, the shiftable
for changing the length of the conveyor by mov
40
rollers being joint] shiftable, the movement of
ing both the end roller and the shiftable roller ‘
the end roller extending the length of the con
\ whereby the tension on the tape is maintained
veyor., and the equal movement of the shiftable
uniform in spite of‘ the change of'length of the
roller paying out the amount of belt required for
conveyor and whereby the tension on the tape
said extension whereby the tension on the tape
has no tendency to move the frame.
,
is maintained constant in spite of the changes
5. A printing'press including a pair of printing
‘ in the length of the conveyor whereby the .con
cylinders adapted to print either face of the
veyor. may readily be adapted to receive sheets
sheet, delivery means adaptedto turn the sheet
at either position.
. ,.
'
over and release it at one position in ‘case the
2. A printing press including a pair of printing
under face is printed and to release it at an
cylinders adapted to print either face of the sheet,
other position without turning it over when the
delivery means adapted to turn the sheet over
upper face is printed, a pile jogger mechanism‘,
and release it at one position in case the under
- and a conveyor for delivering the sheets from
it
at
another
posi-r
_
face is printed and to release
either of said positions to the pile jogger mech
tion without turning it over when the upper face
anism, said conveyor including an extendable por
is printed, a pile jogger mechanism, means for
tion adapted to pivot about a point of discharge
driving the pile jogger mechanism in timed re
‘ thereof whereby it may be pivoted, extended or
pile
jogger
as
a
' lation with the press to open the
conveyor for delivering I collapsed to properly position its receiving end
for sheets released at either position, said pile
- sheet is delivered, and a
the sheets from either of said positions to the
jogger including side jogger means, and driving
' pile jogger mechanism including at least one end 60 means for jogging the side jogger means inwardly
less belt, the working run of which runs forwardly
and'outwa‘rdly against the sides of sheets de
' from a shiftable end roller at the receiving end - positedv therebetween, said driving means being
of a portion of the conveyor and the return run
driven in timed relationship with the press to
-. of which extends rearwardly to a‘roller at a fixed
hold open the side jogger means as a sheet is
position, forwardly around a second shiftable
. roller and rearwardly to said end roller, the shift
able rollers ‘being jointly shiftable, the movement
of the end roller. extending the length of the con
. veyor, and the equal movement of the shiftable
65
deposited therebetween, and means for easily
adjusting the driving means to change the timed
relationship between the side'joggers and the‘
press to make the timing‘ correct for the two
different release positions of the sheet to the
roller paying out the amount of belt required 70
for said extension whereby the tension on the 6. The combination of a press adapted to print
tape is maintained constant in spite of the
either face of a sheet, pile jogger means including
changes in the length of the conveyor whereby
- side Joggers and delivery means adapted to turn
the conveyor may readily be adapted to receive
the printed sheet over and deliver it to the pile
75
sheets at either position.
conveyor.
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2,412,132 .
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v9
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jogging means or optionally delivering itto the
pile jogging means without turning it over, the
delivery taking longer in one instance than the
,
10
of said blocks and to-oscillate the‘ lever by coac
tion with said block; said rod having two vspaced ,
lugs positioned thereon, one of which engages one
block'when the rod is therein and the other of
which engages the other block when the rod is
therein,'whereby the lever is driven in the same
angular direction by said block in either position,
other, and means to drive the jogging means in
timed relationship with the press and to vary the
timed relationship so that with a sheet printed ‘
on either face and deliveredto the jogging means
with’ its printed face up, the side Joggers of the
the lever‘ being biased in the opposite direction.
jogging means will open to receive the sheet.
l0. Sheet handling apparatus including a ma
7. The combination of a. press adapted to print '10 chine for performing an operation on the sheets
either face of a sheet, pile jogger means and de
including a rotary element of generally cylindri
livery means adapted to turn the printed sheet
cal
contour, 'means running around the ‘rotary
over and deliver it to the pile jogging means or .
element and adapted to move'the sheet, means
optionally delivering it to the pile Jogging means
for causing release of the sheet at the top of the
without turning it over, the delivery taking 15 rotary element with movement generally tangen
‘ longer in one instance than-the other, and means
tially and forwardly therefrom, and means alter
to drive the jogging means in timed relationship
natively effective for causing release of the sheet
with the press and to vary the timed relationship
after it has passed around the rotary element,
so that with a sheet printed on either face and
an extensible conveyor including a main frame , V
delivered to‘ the jogging means with its printed 20 pivotable about a point spaced forwardly from
face up, the side Joggers oi’ the jogging means
said element, a shiftable frame shiftable forward
will open to receive the sheet,_said driving means
ly and rearwardly with respect to the main frame,
including a lever pivoted intermediate itslength,
open-sided pivoted blocks mounted on the lever
with one on each side of the pivotal axis of the
lever, and a rod reciprocated in timed relation 25
ship with the press and adapted to be dropped
into the open side of either of said blocks and
to oscillate the lever by coaction with said block.
8. The combination of a press adapted to print 30
either face of a sheet, pile Jogger means and de- -
a ?rst conveyor roller carried by the main frame, _
a shiftable end roller carried by the shiftable
frame, a stationary looper roller carried by the
frame positioned‘ longitudinally between the end
roller and the ?rst conveyor roller, and a shiftable
‘looper roller carried by the shiftable frame longi
tudinally between the?rst conveyor roller and
the stationary looper roller, and a conveyor belt
having its upper run extending forwardly from
livery means adapted to turn the printed sheet
over and deliver it to the pile jogging means or
I the ‘shiftable end roller to the ?rst conveyor
optionally delivering it to the pile jogging means
without turning it over, the delivery taking
and forwardly from the stationary looper roller
around the shiftable looper and rearwardly to
longer in one instance than the other, and means
to drive the jogging means in timed relationship
with the press and to vary the timed relationship ‘
so that with a sheet printed on either face and
roller and its lower run extending rearwardly to
the shiftable’ end roller whereby the conveyor
may be elongated and pivoted to receive sheets at
either position of release without‘ changing the
tension on the belt and without the necessity of
delivered- to the logging means with its printed 40
overcoming any force exerted on'the rollers-by‘
face up, the side Joggers of the-jogging means
the belt.
will open to receive the sheet, said driving means
11. An extensible conveyor‘including a main
including a lever pivoted intermediate its length,
frame; means pivotally mounting the frame ad->
open-sided pivoted blocks mounted on theulever
jacent to one end thereof, adjustable me'?ans ‘
with one on each side of the pivotal axis of the v45\moun_ting the other end of the frame so that the
lever, and a rod reciprocated in timed relation
height of the second mentioned end can be reg- '
ship with the press and adapted to be dropped
‘ ulated, a shiftablegframe shiftable generally lon
into the open side of either of said blocks and ,
gitudinally in the main frame, a ?rst co'nveyor
to oscillate the lever by coaction with said block;
carried by the main frame, a shiftable end
said rod having two spaced lugs adjustably posi-' 50 roller
roller carried by the shiftable frame, a stationary
tioned thereon, one of which engages one block
looper roller carried byvthe main frame toward
when the rod is therein, and the other of which
engages the other block when the rod is therein, -
whereby the leveris driven in the same angular
direction by said block in either position, the
lever being biased in the oDDOsite direction.
the and roller from said ?rst conveyor roller, and
a shiftable looper roller carried by the shiftable
frame toward the ?rst conveyor roller from the
stationary looper roller, and a conveyor‘ belt
having its upper run extending forwardly from
the shiftable end roller to the ?rst conveyor roller
*9. The combination 01' a press adapted to print
either face of a sheet, pile jogger means and de
and its lower run extending rearwardly to and '
livery means adapted to turn the printed sheet‘
forwardly from the stationary looper roller around
over and deliver it to the pile jogging means 60 the shiftable looper roller.
,
or optionally delivering it to the pile jogging
12. Sheet handling apparatus including a ma
means without turning it over, the delivery tak
chine for performing an operation on the sheets
ing longer in one instance than the other, and
including, a rotary element of generally cylindri
means to drive the jogging means in timed rela
, cal contour, means running around the rotary
tionship with the press and to vary the timed
element and adapted to move the sheet, means
relationship so that with a sheet printed on
for causing release of the sheet at the top of the
either face and delivered to the jogging means
rotary element with movement generally tangen
with its printed face up, the side joggers of the ' tially and forwardly therefrom, and means alter
jogging means will open to receive the sheet, said
natively effective for causing release of the sheet
driving means including a lever pivoted inter
after it has passed around the rotary element, an
mediate its length, open-sided pivoted blocks
extensible conveyor including a main frame piv
otable about a point spaced forwardly from .said
the pivotal axis of the lever, and a rod recipro
element, a shiftable‘ frame shiftable forwardly
cated inv timed relationship with the press and
and rearwardly with respect to the main frame, a
adapted to be dropped into the open side of either 75 ?rst conveyor roller carried by the main frame, a
mounted on the lever with one on each side of
"2,419,182
12
'
1
11 '
I
J
‘
said frames being associated ‘with one another
a stationary looper roller carried by the frame
. for relative longitudinal movement, with the span
between the rollers on one frame overlapping
the span between the rollers on the other frame,
a belt having its upper run passing over, and be
tween the most remote of said rollers and having
the return run extending in a first direction from
positioned» longitudinally between the end roller
and the ?rst conveyor roller, and a shiftable,
looperiroller- carried by- the shiftable frame Ion-:5
gitudinally between the first conveyor roller and '
.thestationary looper roller, and a conveyor belt
having its upper run extending forwardly from
the shiftable end roller .to the i‘irsticonveyor roller 10
and its lower run extending rearwardly to and
forwardly from the stationary looper roller
around the shiftable looper and rearwardly to I‘
the shiftable end roller- whereby the conveyor may
be elongated and pivoted to receive sheets at
either position of release without changing the
tension on ‘the belt and without the necessity of
a ?rst of said remote rollers to the other roller .
on the same frame therewith around this roller
and in the opposite direction to the fourth roller,
around it and from it, again in the ?rst direction,
to the other of the remote rollers whereby the
frames may be shifted to elongate the conveyor
without changing the tension of the belt, ‘and
means pivotally, mounting the conveyor about the
‘axis of one of said remote rolls.
overcoming any force exerted on the rollers by
I
thebelt, side guides positioned adjacent theup
per run of the conveyor tape having its receiving
end portion ?ared outwardly longitudinally and
also upwardly to guide a sheet whichv approaches,
it endwise on the tape or from above.
,
vally parallel rollers longitudinally spaced-thereon,
shiftable end roller carried by the shiftable frame,
>
t
15. A printing press including a pair of print‘
ing cylinders adapted to print either face of the
‘sheet, delivery means adapted to turn the sheet
'20
over and release it at one position in case the
under face is printed and to release it at another
position without turning it over when the upper
~
13. An extensible conveyor including a pa-ir‘of
frames ‘one constituting, a main frame, means
face is printed, a depositing surface spaced dif- _
associated with one another for relative longitu
dinal movement, with the span between the roll;
ing end of a portion of the conveyor and the re
turn run of which extends rearwardly to a roller
ferent distances from the ?rst and ‘second Posi
pivotally mounting the main frame adjacent to 25 tions,
and a conveyor delivering the sheets from
one endthereof, adjustable means mounting the
either of said positions to thedepositing surface
other end of the frame so that the height of the
pivotable about a point spaced along the conveyor
second mentioned end can be regulated, each
from its receiving end including at least one end
frame including a pair of generally parallel rollers
less belt, the working run of which runs for
30
longitudinally spaced thereon, said frames being
wardly from a shiftable end roller at the receiv
ers on one frame overlapping the span‘ between ' at a fixed position, forwardly around a second the .rollers on the other frame, a vbelt having its ' shiftable roller and rearwardly to said end roller,
between the most,
upper run passing over and
remote of said rollers and having the return run
extending in a ‘first direction fronijia'flrst of salt‘
remote rollers to the otherj‘rollerij-jon the same
frame therewith
around this
'
‘ _
‘I _
I
I
opposite direction to the fourt
ller, around it
and from it, again in the first direction, ‘the
other ‘of the remote rollers whereby? ‘the’ frames
may be shifted to elongate the conveyor without
changing the tension of the belt.
‘
14. An extensible conveyor including a pair of ~
frames, each frame including a pair of gener
.tl'ieshi'ftable rollers‘ being jointly shiftable. the
' movement of the end roller extending the length
‘of the conveyor, 'and the equal movement of the
' shiftable roller paying out the amount of belt
40
required for said extension whereby the tension
on the tape is maintained constant in spite of the
changes in the length‘of the conveyor whereby
the conveyor may readily be adapted to receive
sheets at either position.
'
EDWARD F. DELL.
/
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