Improvements in and relating to Printing Machines.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Printing Machines.
I, WILLIAM EDWARD EVANS, of Lonsdale Chambers, 27, Chancery Lane, London,
W.C., Consulting Engineer, (being a communication from abroad by Henry
Alexander Wise Wood, of 1, Madison Avenue, New York, the United States of
America, Manufacturer) do hereby declare the nature of this invention to be as
follows:-
The aim of this invention is to improve the construction of printing presses,
and especially relates to web printing presses which are known in the art as
travelling cylinder web printing presses; although my invention may be applied
to other forms of presses, as hereafter described.
My invention consists broadly in so arranging the parts of a press that two
independent webs may be presented to, and printed from a single set of forms,
thereby doubling the product; and in carrying out this invention, I have accom-
plished the same by inventing what I may call an internal web printing and
manipulating device; which in itself is a new form of press.
The broad idea of my invention, however, is the handling of two webs so as
to double the product of the press.
I will first describe my peculiar internal press.
The first and second impression cylinders may be mounted in the usual carriage
or framing which may be reciprocated by any of the usual well-known mechan-
isms, not necessary here to describe.
The corresponding first and second beds are arranged in substantially the same
horizontal plane, although, of course, any arrangement of beds, that well-known,
can be used.
On each side of the impression cylinders in the carriage are placed form-rollers.
From the web-roll, the web passes around the usual continuously running
feeding-in rollers then around the looping-feeding roller which may be mounted
in pivoted arms and also in the other ends of these arms may be mounted the
looping delivery roller whereby the looping rollers will be simultaneously vibrated
in opposite directions.
The pivoted arms are kept normally in proper position as by means of springs.
Connected to the pivoted arms are the yokes which carry rollers which bear on
cams secured on a shaft which shaft revolves twice for each complete forward and
backward reciprocation of the impression cylinders.
The cams are preferably made heart-shaped, and by this arrangement of feeding-
mechanism, the web will be held stationary while the cylinders are on the forms
and will be shifted around the impression cylinders, when they are off the forms in
either direction; and also the web will be continuously fed into and out of the
press, all of which is well understood.
From the looping feeding-in roller, the web passes around stationary rollers,
which are journalled in the framing of the machine.

page_text: From the last stationary roller the web is led to rollers or guides carried by
the carriage under the first impression cylinder then up over adjacent rollers.
The web then passes to a turner device, which is preferably carried by the
carriage, so as to turn the web over between the two impression cylinders."
This turner may be of any of the usual constructions, and may consist of a
turner-bar mounted on top of the carriage, a roller which is carried by the carriage
and mounted parallel with the movement of the same and outside of the rear
frame, and this roller may be made adjustable, if desired, for the purpose of
obtaining register between the two impression cylinders.
From this roller the web passes back into the carriage and up over a turner-
bar and from the turner-bar the web is led to the carriage guides under the
second impression cylinder and then to the carriage-rollers.
From the carriage rollers the web is led around stationary guides or rollers
which are mounted or journalled in the frame of the machine, then around the
looping delivery roller before referred to, and then into the bite of continuously
running delivery rollers.
Any suitable inking mechanism may be provided which may consist of fountains,
vibrating ductor-rollers, drums, conveying-rollers, and drum cylinders; this inking
mechanism being mounted at the outside end of each bed, and being so arranged
that when a cylinder is off the outer end of a bed the form rollers on both sides
of the cylinder, will receive their supply of ink from the two drum cylinders pro-
vided. By this means the form will be inked for each impression, and so that
an impression can be taken for each forward and backward movement of the
impression cylinders.
The printing press, before described, is peculiar, in the short path between
the two impression cylinders, the web passing directly from one impression cylinder
to the other, and being preferably turned in this course, so that the same will
be perfected by the two impression cylinders.
The action of the web in the press is peculiar, thus, taking for example, the
case where the impression cylinders move to the left.
In this case, the web being held stationary the first impression cylinder will
press the same to the form on its bed, but the adjacent carriage rollers moving
to the left, will move in a loop of the web, and will pull the web above the impres-
sion cylinder to the left, twice as fast as the impression cylinder moves; but
the web being held stationary also at the stationary guide roller to which the web
passes from the second impression cylinder, and the carriage rollers also moving
in a loop of the web in the opposite direction from what the corresponding carriage
rollers of the first impression cylinder move in their loop, will pay the web out
around the uppermost carriage roller so that the same will be given out to the
left twice as fast as the impression cylinders move to the left.
By this means a compensating double loop is formed so that the web can remain
stationary at the stationary guide rollers and also be held stationary with relation
to the beds, while the impression is taking place but so that the web will run
through the turner while the impression is being taken.
When the impression cylinders are off the forms the web between these points
is shifted so as to provide a fresh surface for the next impression and the web
is preferably shifted as before described, when the impression cylinders are off
the forms in either direction, so that impressions are taken in both directions.
By this arrangement of parts, it will be seen that I have provided a very short
path for the web, and that very little web will be in the press.
If the web is led directly from the first impression cylinder to the second im-
pression cylinder without passing through the turner, as it may be, the impression
cylinders will print twice on the same side of the web, and this construction is
useful for a two color press.
This double compensating loop may be applied to a press in which only one
form and reciprocating cylinder are used; thus, the web would be led directly from
the carriage roller to another roll carried by the carriage, then to further guide

page_text: roller carried by the carriage, and then back to the stationay roller and of course
in this leading of the web, the turner would not be used."
In a press organized as described, it will be understood that the double com-
pensating loop is still used but that the second, or right hand end of the same is
not used for printing, the printing simply being done in the left-hand loop, the
double compensation of the loop being, of course, necessary, whether single or
double printing is done.
Thus, it will be seen that my device can be applied as well to a press in which
a single cylinder is used, and it may be done either by placing these additional
rollers in the carriage and leading the web. as before described, and still keeping
the press so that the same can be used either to print on one or both sides of
the web, or otherwise by omitting the second cylinder, whereby the press is simply
organized to print on one side of the web, or otherwise, by leaving off the form
on the second bed.
Thus, I have provided a very simple form of travelling cylinder press, and one
in which the path of the web is very short; but the chief advantage of this
peculiar press is that the same can be combined with a travelling cylinder press
of the ordinary construction, so that two impression cylinders can be arranged to
co-operate with each bed, each impression cylinder carrying a separate web,
whereby the product of the machine can be doubled, and twice as many impressions
can be taken from the same forms.
It is not necessary to place the turner between the two impression cylinders
on the carriage, as the turner could be arranged stationary, and by this construc-
tion, the impression cylinders could be brought still closer together, if desired.
In such a modification the web may be led from the carriage roller to a
stationary roll back around another roll then through the turner device, which is
mounted stationary in the framing and which turner device is substantially the
same as the turner device used on the carriage in the previous device, then from
the turner device around the stationary rollers to the carriage roll or guide of
the second cylinder.
It is not necessary always to use the rollers employed as described as the web
could be led directly from the carriage rollers of the first evlinder to the stationary
turner, and from the stationary turner to the carriage roll of the second cylinder.
I intend to use the supplementary rolls when it is desired to keep the impres-
sion cylinders very close to each other; but when it is not desired, I intend to
lead the web directly to the stationary turner without these rollers.
The reason I prefer to mount the turner in the carriage is that the turner will
move in the same direction as the web between the impression cylinders, but at
half the speed. This will cause the web to only run at half the speed around the
turner mounted in the carriage that the web would run around the stationary
turner device, and hence the action of the web would be, when the turner is
mounted in the carriage, easier than when the turner is stationary; but both forms,
however. are within the scope of my invention.
It will be seen that the press might be called an internal press, in that it is
not necessary to carry the web in a loop between the impression cylinders to
turn the same as is done in a known device
The particular advantage of my press, as before stated, is that by using this
peculiar form of press. I can combine the same with another printing press, and
thus have two impression cylinders, acting to present a different web to each form.
and thus, this enables me to carry out the broad idea of my invention viz., of
printing two webs from one form bed, or of perfecting two webs from two form
beds. and of course, the broad idea of my invention viz., of printing two webs,
could be carried out in other ways. Also the broad idea of my invention con-
templates applying the device to a printing press in which the cylinder or cylinders
is or are stationary, and the bed or beds reciprocates or reciprocate.
In such a machine I arrange the impression cylinders in the carriage exactly

page_text: as before described, so that they will co-operate with the beds; but in the
carriage I arrange another set of impression cylinders which also coact with the
beds.
I preferably arrange with each set of impression cylinders three form-
rollers one form-roller being arranged between two impression cylinders.
The path of the web in this device, with relation to the first set of impression
cylinders is exactly the same as before described, and need not be again here
detailed.
The other parts of the machine are also substantially the same, except that
the inking apparatus may be modified, as hereafter described.
The other second web is led from a web-roll which may be mounted above
the machine. From this web-roll, the web is led through continuously running
feeding-in rollers then around a looping feeding roller which may be mounted
in pivoted arms and these pivoted arms may be arranged to move synchronously
with the arms of the first press, by connections.
From the looping feeding-roller, the web is carried to a stationary guide
roller then down to another stationary guide or roller mounted in the framing
at the end of the machine.
From this last guide roller the web passes around guides or rollers mounted
in the carriage then under the first impression cylinder of the second set then
around guides or rollers also carried by the carriage.
The web may then pass to a suitable turner, which may consist of right-hand
turner-bars and the usual parallel-roll, which turner device is substantially the
same as the turner device for the first press; but I preferably arrange this turner
device stationary in the machine, instead of mounting the same in the carriage,
as is preferred in connection with the first press.
From this turner, the web passes to carriage guides then under the second
impression cylinder and the second set then around the carriage guides to a
stationary guide or roller at the end of the press.
From this stationary guide or roller, the web may pass around the looping
delivery roller which may be mounted in suitable arms which arms may be
actuated by yokes which carry rollers bearing on cams which are rotated syn-
chronously with the cams that actuate the other looping rollers; and the carry-
ing arms may be held in their normal position by springs in the usual manner.
From this looping delivery roller, the web passes to continuously running
delivery rollers out of the press.
The organization of this portion of the mechanism is substantially that which
is well-known and need not be further described, except to state that an im-
pression will be taken on the web for each forward and backward movement of
the impression cylinders.
Any suitable inking device may be provided to supply ink to the form rollers
and, if desired, inking devices may be arranged at each end of each bed, and
these inking devices may consist of drums (which are adapted to give ink to
the form rollers when the impression cylinders are off the forms) of distributors,
drums, vibrating ductors and fountains.
By this inking mechanism, it will be understood that each form roller will
receive a supply of ink, when the same is off the form bed in either direction,
whereby the forms will be inked in front of each impression cylinder for each
impression.
The operation of this organized structure can be followed from the previous
description.
It will be seen that the first press and the second press both print from the
forms on the beds and that substantially double the product is obtained over
the form of travelling cylinder press, in which a single web is used, whereby
the product of the machine is doubled without increasing the number of forms.
It is evident, of course, that the second bed and its impression cylinders
could be omitted, and the press adapted to print only on one side of both webs,

page_text: In this case, the entire second printing mechanism would be omitted except
a guide roller for the first press which would be necessary in order to still keep
the double compensating loop of the first press as before described.
The second web could be led, if desired, directly from the first supplementary
impression cylinder to the delivery mechanism by a roll.
Another way, of course, that I can use this organized structure as a single
press, is to omit the second form bed and to lead the web either in the path
before described, where only one bed is used, or in the path where two beds are
used, the form on the second bed being omitted, and, of course, the second
printing thereby not being done.
The problem in all printing is to get the greatest number of impressions
from the same form, and, while the other parts of the press can be increased,
the forms must necessarily be left in their simplest state, if it is desired to run
the press without stereotyping, which is one great advantage of the travelling
cylinder press. I accomplish this desirable result, as before stated, by printing
two webs from one set of forms.
It is understood of course that the second web can be led directly from the
first supplementary impression cylinder to the second supplementary impression
cylinder without passing through the turner, whereby the second press as well as
the first could be organized so as to print twice upon the same side of the web.
Of course, the parts, as the feeding mechanism and the inking mechanism,
the arrangement of beds, etc. will be varied and designed by a skilled mechanic
to suit any form of press, without departing from the scope of my invention:
and as I believe I am the first to use two webs in a travelling cylinder printing
machine, I wish to cover broadly any construction that will manipulate two webs.
The two emerging printed webs may be associated together, and further manipu-
lated or cut into sheets and folded either singly collected, or associated, or asso-
ciated and collected as desired.
While the feeding devices are adapted to shift the web when the impression
cylinders are off the forms in either direction, it is, of course, evident that the
web could be only shifted once for each reciprocation.
The details and arrangements of parts herein described may therefore, be
greatly varied by a skilled mechanic without departing from the scope of my
invention.
COMPLETE SPECIFICATION.
Improvements in and relating to Printing Machines.
I, WILLIAM EDWARD EVANS, of Lonsdale Chambers, 27, Chancery Lane, London,
W.C., and 105, Colmore Row, Birmingham, Consulting Engineer, do hereby declare
the nature of this invention and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
The aim of this invention is to improve the construction of printing presses,
and especially relates to web printing presses which are known in the art as
―:

page_text: travelling cylinder web printing presses; although my invention may be applied.
to other forms of presses, as hereafter described.
My invention consists broadly in so arranging the parts of a press that two
independent webs may be presented to, and printed from a single set of forms,
thereby doubling the product, such invention comprising an internal web printing
and manipulating device, which in itself is a new form of press.
The broad idea of my invention, however, is the handling of two webs so as
to double the product of the press.
One preferred form of my invention is shown in diagram, and the operation
of the travelling cylinder press and its auxiliary parts is so well known that it
is not necessary here to show or described all the specific details, the diagrams
fully illustrating the scope of my invention.
Referring to the drawings, and in detail,
Fig. 1 represents a diagram of my improved internal press used as a single
press.
Fig. 2 represents the turner which is preferably used between the two impression
cylinders.
Fig. 3 represents in diagram my broad invention, whereby two webs can be
manipulated, and
Fig. 4 represents a different way in which the web can be led in the single
press.
Referring now to the drawings and in detail, I will first describe my peculiar
internal press.
The first impression cylinder is represented by A, the second by B, and these
impression cylinders may be mounted in the usual carriage or framing C, which
is supposed to be reciprocated by any of the usual well-known mechanisms, not
necessary here to describe.
D represents the first bed, and E the second bed, and as shown; these beds are
arranged in substantially the same horizontal plane, although of course any
arrangement of beds that is well known, can be used.
On each side of the impression cylinders A and B, in the carriage C are placed
form-rollers F.
W represents the web-roll from which the web is led.
From the web-roll, the web a passes around the usual continuously running
feeding-in rollers 10, 11, and 12, then around the looping-feeding roller 13, which
may be mounted in the pivotted arms 14; and also in the other ends of these arms
may be mounted the looping delivery roller 15, whereby the looping rollers will
be simultaneously vibrated in opposite directions.
The pivotted arms 14 are kept normally in proper position, as by means of
springs 16.
Connected to the pivotted arms 14 are the yokes 17, which carry rollers 18
which bear on cams 20 secured on a shaft 19, which shaft 19 is supposed to revolve
twice for each complete forward and backward reciprocation of the impression
cylinders.
The cams are preferably made heart-shaped, and by this arrangement of feeding-
mechanism, the web will be held stationary while the cylinders are on the forms,
and will be shifted around the impression cylinders, when they are off the forms in
either direction; and also the web will be continuously fed into and out of the
press, all of which is well understood.
From the looping feeding-in roller, the web a passes around the stationary
rollers 21, 22, and 23, which are supposed to be journalled in the framing of the
machine.
From the roller 23, the web is led to the rollers or guides 24 and 25 carried
by the carriage C under the impression cylinder A, then up over the rollers 26
and 260, as shown.
From the roller 260 the web passes to a turner device, which is preferably carried

page_text: by the carriage as shown, so as to turn the web over between the two impression
cylinders.
This turner may be of any of the usual constructions, and one of such construc-
tions is shown as consisting of the turner-bar 27, mounted on top of the carriage,
the roller 28, which is carried by the carriage and mounted parallel with the
movement of the same and outside of the rear frame, as shown, and this roller 28
may be made adjustable if desired, for the purpose of obtaining register between
the two impression cylinders.
From the roller 28 the web passes back into the carriage and up over the turner-
bar 29, and from the turner-bar 29 the web is led to the carriage guides 30 and 31,
under the impression cylinder B, and then to the carriage rollers 32 and 320.
From the carriage roller 320, the web is led around the stationary guides or
rollers, 33, 34, and 35, which are supposed to be mounted or journalled in the
frame of the machine, then around the looping delivery roller 15 before referred
to, and then into the bite of the continuously running delivery rollers, 37, 38,
and 39.
Any suitable inking mechanism may be provided, and one simple form is shown,
which may consist of the fountains as 40, the vibrating ductor-rollers 41, the
drums 42, the conveying rollers 43, and the drum cylinders 44 and 45; this inking
mechanism being mounted at the outside end of each bed, and being so arranged
that when a cylinder is off the outer end of a bed, the form rollers on both sides
of the cylinder will receive their supply of ink from the two drum cylinders 44
and 45. By this means the form will be inked for each impression, and so that
an impression can be taken for each forward and backward movement of the
impression cylinders.
The printing press, before described, is peculiar, in the short path between
the two impression cylinders, the web passing directly from one impression cylinder
to the other, and being preferably turned in this course, so that the same will
be perfected by the two impression cylinders.
The action of the web in the press is peculiar, thus taking for example the
case where the impression cylinders move to the left.
In this case, the web being held stationary on the roller 23, the impression
cylinder A will press the same to the form on the bed D, but the rollers 26 and 260
moving to the left, will move in a loop of the web, and will pull the web above
the impression cylinder A to the left twice as fast as the impression cylinder moves;
but the web being held stationary also at the point 33, and the carriage rollers 30
and 31 also moving in a loop of the web in the opposite direction from which
the rollers 26 and 260 move in their loop, will pay the web out around the
roller 30, so that the same will be given out to the left twice as fast as the impres-
sion cylinders move to the left.
By this means a compensating double loop is formed so that the web can remain
stationary on the points 23 and 33, and also be held stationary with relation
to the beds, while the impression is taking place, but so that the web will run
through the turner while the impression is being taken.
When the impression cylinders are off the forms, the web between these points
is shifted so as to provide a fresh surface for the next impression, and the web
is preferably shifted as before described, when the impression cylinders are off
the forms in either direction, so that impressions are taken in both directions.
By this arrangement of parts, it will be seen that I have provided a very short
path for the web, and that very little web will be in the press.
If the web is led directly from the impression cylinder A to the impression
cylinder B, without passing through the turner, as it may be, the impression
cylinders will print twice on the same side of the web, and this construction is
useful for a two color press.
This double compensating loop may be applied to a press in which only one
form and reciprocating cylinder are used; thus, for example, suppose in Fig. 1

page_text: that the right-hand or the second cylinder and bed are omitted
In this case,
the web would be led directly from the roller 260 to a roll 47 carried by the carriage,
then to a roller 48 carried by the carriage, and then back to the roller 33, and
of course, in this leading of the web, the turner would not be used.
In a press organized as described, it will be seen that the double com-
pensating loop is still used, but that the second or right-hand end of the same is
not used for printing, the printing simply being done in the left-hand loop, the
double compensation of the loop being of course necessary. whether single or
double printing is done.
Thus, it will be seen that my device can be applied as well to a press in which
a single cylinder is used, and it may be done either by placing these additional
rollers in the carriage and leading the web, as before described, and still keeping
the press so that the same can be used either to print on one or both sides of
the web, or otherwise by omitting the second cylinder, whereby the press is simply
organized to print on one side of the web, or otherwise, by leaving off the form
on the second bed.
Thus, I have provided a very simple form of travelling cylinder press, and one
in which the path of the web is very short; but the chief advantage of this
peculiar press is that the same can be combined with a travelling cylinder press
of the ordinary construction, so that two impression cylinders can be arranged to
co-operate with each bed, each impression cylinder carrying a separate web,
whereby the product of the machine can be doubled, and twice as many impressions
can be taken from the same forms.
It is not necessary to place the turner between the two impression cylinders
on the carriage, as the turner could be arranged stationary, as indicated in
Fig. 4; and by this construction, the impression cylinders A and B could be
brought still closer together if desired.
In the modification shown in Fig. 4, the web is led from the carriage roll 260
to a stationary roll 91, back around a roll 92, then through the turner device,
which is mounted stationary in the framing, and which turner device is sub-
stantially the same as the turner device used on the carriage in the previous
device, then from the turner device around the stationary rollers 93 and 94, to
the roll or guide 30 carried by the carriage.
It is not necessary always to use the rollers 91, 92, 93 and 94, as the web
could be led directly from the carriage rollers as at 95 to the stationary turner,
and from the stationary turner to the carriage roll 96; these rolls 95 and 96 thus
taking the place of the rollers 260 and 30.
I intend to use the rolls 91, 92, 93 and 94 when it is desired to keep the
impression cylinders A and B very close to each other; but when it is not desired,
I intend to lead the web directly to the stationary turner without these
rollers 91, 92, 93 and 94, as indicated in dotted lines."
The reason I prefer to mount the turner in the carriage is that the turner will
move in the same direction as the web between the impression cylinders, but at
half the speed. This will cause the web to only run at half the speed around the
turner mounted in the carriage that the web would run around the stationary
turner device, and hence, the action of the web would be, when the turner is
mounted in the carriage, easier than when the turner is stationary; but both forms,
however, are within the scope of my invention.
The particular advantage of my press, as before stated, is that by using this
peculiar form of press, I can combine the same with another printing press, and
thus have two impression cylinders acting to present a different web to each form,
and thus, this enables me to carry out the broad idea of my invention, viz., of
printing two webs from one form bed, or of perfecting two webs from two form
beds, and of course, the broad idea of my invention, viz., of printing two webs
could be carried out in other ways. Also the broad idea of my invention con-
templates applying the device to a printing press in which the cylinder or cylinders
is or are stationary, and the bed or beds reciprocates or reciprocate.

page_text: Referring now to the diagram shown in Fig. 3 I have illustrated such a machine.
In this case I have arranged the impression cylinders A and B in the carriage C¹
exactly as before described, so that they will co-operate with the beds D and E;
but in the carriage C, I have arranged another set of impression cylinders as A¹
and B, which also co-act with the beds D and E.
I preferably arrange with each set of impression cylinders three form-
rollers F, F, and 13 as shown, the form-roller F2 being arranged between two
impression cylinders A, A or B, B¹
The path of the web a in this device, with relation to the impression cylinders A
and B, is exactly the same as before described, and need not be again here detailed.
The other parts of the machine are also substantially the same, except that
the inking apparatus may be modified, as hereafter described.
The other web b is led from a web-roll W which may be mounted above the
machine, as shown. From this web-roll, the web bis led through the con-
tinuously running feeding-in rollers 50, 51, and 52, then around the looping
feeding-roller 53 which may be mounted in pivotted arms 54, and these pivotted
arms 54 may be arranged to move synchronously with the armis 14 of the first
press, by connections 55 as shown.
From the looping feeding roller, the web is carried to a stationary guide
roller 56, then down to a stationary guide or roller 57 mounted in the framing
at the end of the machine. From this guide roller 57 the web passes around the
guides or rollers 58 and 59 mounted in the carriage C, then under the impression
cylinder A', then around the guides or rollers 60 and 600 also carried by the
carriage C. From this roller 600 the web may pass to a suitable turner, which
may consist of the right hand turner bars as 62 and 61 and the usual parallel
roll, which turner device is substantially the same as the turner device for the
first press; but I preferably arrange this turner device stationary in the machine,
instead of mounting the same in the carriage, as is preferred in connection with
the first press.
From this turner, the web passes to the carriage guides 63 and 64, then under
the impression cylinder B, then around the carriage guides 65 and 650, to a
stationary guide or roller 66 at the end of the press.
From this stationary guide or roller, the web may pass around the looping
delivery roller 67, which may be mounted in suitable arms 68, which arms 68
may be actuated by yokes 69, which carry rollers 70 bearing on cams 71, which
are rotated synchronously with the cams that actuate the other looping rollers;
and the arms 68 may be held in their normal position by springs 72 in the usual
manner.
From this looping delivery roller, the web passes to the continuously running
delivery rollers 73, 74, and 75 out of the press.
The organisation of this portion of the mechanism is substantially that which
is well-known, and need not be further described, except to state that an im-
pression will be taken on the web for each forward and backward movement of
the impression cylinders.
Any suitable inking device may be provided to supply ink to the form
rollers 1, 2 and F3, and, if desired, inking devices may be arranged at each end
of each bed, and these inking devices may consist of drums 76, 77, and 78 (which
are adapted to give ink to the form rollers F1, F2, and F when the impression
cylinders are off the forms) of the distributors 79, 80, and 81, and 82, the
drums 83 and 84, the distributors 85 and 86, the single drum 87, the vibrating
ductors 88, and the fountains 89.
By this inking mechanism, it will be seen that each form roller will receive
a supply of ink, when the same is off the form bed in either direction, whereby
the forms will be inked in front of each impression cylinder for each impression.
The operation of this organised structure can be followed from the previous
descriptions.
It will be seen that the first press and the second press both print from the

page_text: forms on the beds D and E, and that substantially double the product is obtained
over the form of travelling cylinder press, in which a single web is used, whereby
the product of the machine is doubled without increasing the number of forms.
It is evident, of course, that the second bed E and its impression cylinders
could be omitted, and the press adapted to print only on one side of both webs.
In this case the entire second printing mechanism would be omitted except a
guide roller as 480 for the first press which would be necessary in order to still
keep the double compensating loop of the first press, as before described.
The web could be led if desired directly from the first impression cylinder A¹
to the delivery mechanism by a roll, 90, as indicated in dotted lines.
Another way, of course, that I can use this organised structure as a single
press, is to omit the second form bed and to lead the web either in the path
before described, where only one bed is used, or in the path where two beds are
used, the form on the second bed being omitted, and, of course, the second
printing thereby not being done.
The problem in all printing is to get the greatest number of impressions
from the same form, and while the ether parts of the press can be increased,
the forms must necessarily be left in their simplest state, if it is desired to run
the press without stereotyping, which is one great advantage of the travelling
cylinder press. I accomplish this desirable result, as before stated, by printing
two webs from one set of forms.
It is understood, of course, that the web b can be led directly from the
impression cylinder A¹ to the impression cylinder 11 without passing through
the turner, whereby the second press as well as the first could be organised so as
to print twice upon the same side of the web.
Of course,
the parts, as the feeding mechanism and the inking mechanisin,
the arrangement of beds, etc. will be varied and designed by a skilled mechanic
to suit any form of press, without departing from the scope of my invention;
and as I believe I am the first to use two webs in a travelling cylinder printing
machine I wish to cover broadly any construction that will manipulate two webs.
The two emerging printed webs may be associated together, and further manipu-
lated or cut into sheets and folded either singly, collected, or associated, or asso-
ciated and collected, as desired.
While the feeding devices, shown in the drawings, are adapted to shift the
web when the impression cylinders are off the forms in either direction, it is of
course evident that the web could only be shifted once for each reciprocation.
The details and arrangements of parts herein shown, may therefore be greatly
varied by a skilled mechanic without departing from the scope of my invention,
as expressed in the claims.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. The combination in a web printing press of a form bed, two impression
cylinders co-acting therewith, suitable guides for leading a different web to each
impression cylinder, and means for shifting said webs around the impression
cylinders while the impression cylinders are off impression, substantially as
described.
2. The combination in a printing press of a form bed, two impression
cylinders co-acting therewith, suitable guides for leading a different web to each
impression cylinder, and means for shifting said webs around the impression
cylinders while the same are off impression at each end of the forms, substantially
as described.
3. The combination of a stationary form bed, a travelling impression cylinder
adapted to move outward from the centre or body of the press, stationary guides
for the web before and after it passes around the cylinder, whereby as said

page_text: impression cylinder moves outward, a loop is formed in the web, and means for
taking up the slack web on the return of the cylinder, substantially as described.
4. The combination in a printing machine of two form beds arranged in sub-
stantially the same horizontal plane, a travelling impression cylinder co-acting
with each of said form beds, guiding devices adapted to lead a web to one impres
sion cylinder from the middle of the machine, then around said impression cylinder,
then directly across the machine to the outer side of the second impression cylinder,
then under the second impression cylinder towards the middle of the machine,
and web-manipulating devices arranged to intermittently shift the web around
the impression cylinder substantially as described.
5. The combination in a printing press of two form beds arranged in substan-
tially the same horizontal plane, a travelling carriage carrying an impression
cylinder for each of said form beds, web-guiding devices arranged to lead the web
to and from the impression cylinders from between said beds, the web passing
directly from one impression cylinder to the other, and web-manipulating devices
arranged to intermittently shift the web, substantially as described.
6. The combination in a printing press of the two form beds, the reciprocating
carriage carrying an impression cylinder co-acting with each of said form beds,
suitable web-guiding mechanism adapted to feed the web to and from said im-
pression cylinders from between said beds, the web passing from one impression
cylinder to the other, whereby a double compensating loop in the web is formed,
a suitable turner arranged in the path of the web between the impression cylinders,
and web-manipulating devices adapted to intermittently shift the web, substan-
tially as described.
.
7. The combination in a printing press of the two form beds, the reciprocating
carriage carrying an impression cylinder co-acting with each of said form
beds, web-guiding devices adapted to guide the web to and from said
impression cylinders from between the beds, the web passing from one impression
cylinder to the other, a suitable turner carried by the carriage interposed in the
path of the web between the impression cylinders, and suitable devices for shift-
ing the web substantially as described.
8. The combination in a printing press of the form beds, the reciprocating
carriage carrying an impression cylinder co-acting with each of said form beds,
web-guiding devices adapted to guide the web to and from said impression cylinders
from between the beds, suitable guides as 260 and 30, mounted in the carriage,
adapted to lead the web directly from one impression cylinder to the other,
whereby a double compensating loop is formed in the web, a turner carried by
the carriage interposed in the path of the web between these two guides, and means
for intermittently shifting the web, substantially as described.
9. The combination in a printing press of two form beds arranged in substan-
tially the same horizontal plane, means for continuously feeding the web into
and out of the press, two looping rollers adapted to intermittently shift the portion
of the web in the press, guide rollers adapted to feed the web into and out of the
press from between the two beds, the reciprocating carriage carrying an impression
cylinder co-acting with each bed, suitable guides so arranged that the web will
be led directly from one impression cylinder to the other within the limits of the
carriage, and a suitable turner carried by the carriage adapted to turn the web
between the impression cylinders, substantially as described.
10. The combination in a printing press of the two form beds, the reciprocating
carriage carrying an impression cylinder co-acting with each of said form beds,
a turner carried by the carriage arranged in the path of the web between the
impression cylinders, consisting of the two right-angled turner-bars, and the
roller mounted on the carriage parallel to the movement thereof, and suitable
web-feeding and manipulating devices adapted to intermittently shift the web,
and to feed the web into and out of the press from between the beds, substantially
as described.

page_text: 11. The combination in a printing press of two form beds two travelling impres-
sion cylinders co-acting with each of said form beds, web guides so arranged that
two separate webs may be presented by said impression cylinders to the forms
placed on the beds, and means for intermittently shifting said webs, substantially
as described.
12. The combination in a printing press of two form beds, two impression
cylinders co-acting with each of said form beds, web guides so arranged that
two webs may be presented by the impression cylinders to forms placed on the
beds, so as to be perfected, and means for intermittently shifting said webs, sub-
stantially as described.
13. The combination in a printing press of a form bed, two travelling impres-
sion cylinders co-acting with said form bed, web guides so arranged that a separate
web may be presented by each of said impression cylinders, and separate web-
manipulating devices for each of said webs adapted to intermittently shift the
webs around the impression cylinders, substantially as described.
14. The combination in a printing press of two form beds two travelling impres-
sion cylinders co-acting with each of said form beds, suitable guides so arranged
that two webs may be presented by said impression cylinders to said beds, and
separate web-manipulating mechanisms adapted to intermittently shift the webs
around said impression cylinders, substantially as described.
15. The combination in a printing press of two form beds, two travelling im-
pression cylinders co-acting with each of said form beds, suitable web guides
arranged so that two webs may be presented and perfected by said impression
cylinders, and separate web-manipulating mechanisms for each of said webs adapted
to shift the webs intermittently around said impression cylinders, substantially
as described.
15. The combination in a printing press of a form bed, two travelling impression
cylinders co-acting with said form bed, web guiding devices, whereby a separate
web may be presented by each of said impression cylinders, suitable web-manipu-
lating devices, and form inking rollers arranged outside of each of said cylinders
and between the same, substantially as described.
17. The combination in a printing press of two form beds, two travelling
impression cylinders co-acting with each of said form beds, suitable web guides
arranged so that a separate web may be presented to forms placed on said beds
by each set of impression cylinders, suitable web-manipulating devices, and form
inking rollers as F1, F2, & 3 arranged at the outside and between said impression
cylinders, substantially as described.
18. The combination in a printing press of the two form beds, the reciprocating
carriage carrying two impression cyinders adapted to co-act with each of said beds
web-guiding devices adapted to lead two separate webs around said impression
cylinders, whereby two separate webs can be printed, turner devices adapted to
turn said webs between the impression cylinders, and means for intermittently
shifting said webs, substantially as described.
19. The combination in a printing machine of the form beds D and E, the
impression cylinders A and A¹ co-acting with the bed D, the impression cylinders B
and B coacting with the bed E, suitable web guides adapted to lead a web from
the impression cylinder A¹ to the impression cylinder B¹, so that the same will
be perfected by said impression cylinders, web guides adapted to lead another
web from the impression cylinder A to the impression cylinder B within the
limits of the carriage, a web turner interposed in the path of the web between the
impression cylinders A and B, and web-manipulating devices adapted to inter-
mittently shift the webs, substantially as described.
20. The combination in a printing press of the form beds D and E, the impres-
sion cylinders A and A¹ coacting with the bed D, the impression cylinders B
and B co-acting with the bed E, said impression cylinders being mounted in a
reciprocating carriage, web guides adapted to lead a web to the impression
cylinders A and B between said beds, web guides adapted to lead a web to the

page_text: impression cylinders A¹ and B' from outside of the beds, suitable 'turner devices
interposed in the path of both webs between the two sets of impression cylinders,
and means for intermittently shifting said webs around the impression cylinders,
substantially as described.
21. The combination in a printing press of the form beds D and E, the impres-
sion cylinders A and A¹ coacting with the bed D, and the impression cylinders B
and B co-acting with the bed E, said impression cylinders being mounted in a
reciprocating carriage, web guides adapted to lead a web to the impression
cylinders A and B between said beds, web guides adapted to lead a web to the
impression cylinders A¹ and 13' from outside of the beds, suitable turner devices
interposed in the path of both webs between the two sets of impression cylinders,
the turner device between the impression cylinders A and B being arranged in
the carriage, and the turner device between the impression cylinders A and B¹
being fixed, and means for intermittently shifting both webs around the impres-
sion cylinders, substantially as described.
22. The combination in a printing press of a form bed, two travelling impres-
sion cylinders presenting separate webs co-acting therewith, form inking
rollers F1, F2, and F3, arranged outside and between said impression cylinders,
and means for supplying ink to said form rollers when they are off the form,
substantially as described.
23. Printing presses constructed and operating substantially as herein before
described and illustrated.
EDWARD EVANS & Co.,
Chartered Patent Agents,
Lonsdale Chambers, 27, Chancery Lane, London, W.C.,
And 105, Colmore Row, Birmingham,
Agents for the Applicant."