US2022840A - Inking mechanism for multicolor printing presses - Google Patents

Description

0. H. BANKER Dec. 3, 1935.

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Original Filed July 7, 1927 5 Sheets-Sheet l o. H. BANKER 2,022,840

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Dec. 3, 1935.

Original Filed July 7, 1927 5 Sheets-Sheet 2 INVENTOR. M #7 m BY 4. Y1 ATTORNEY.

0. H. BANKER Dec. 3, 1935.

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Original Filed July '7, 1927 5 Sheets-Sheet 5 INVENTOR. M 75 1 flan M BY I 7 M ATTORNEY. V

Dec. 3, 1935. Q H, BANKER 2,022,840

INKING MECHANISM FOR MULTICOLQR PRINTING PRESSES Original Filed July 7, 1927 5 Sheets-Sheet 4 INVENTOR A TTORNE Y Q 3, 1935. o. H. BANKER 2,022,840

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Original Filed July 7, 1927 5 Sheets-Sheet 5 INVENTOR.

6&0 74. KM

A TTORNE Y.

Patented Dec. 3, 1935 UNHTE STATEfi PATENT OFFICE INKING MECHANIS M FOR MULTICOLOR PRINTING PRESSES Oscar H. Banker, Philadelphia, Pa.

7 Claims.

One object of my invention is to devise, in conjunction with a multi-color printing press machine, a novel construction and arrangement of inking mechanism wherein a continuous motion is imparted in the same directionto the controlling elements of the inking mechanism, thus eliminating the necessity, as has heretofore been deemed necessary, of employing reciprocatory or oscillatory movements.

A further object of my invention is to devise novel means for providing variable vibrating strokes of the vibrating rolls, and for effecting the adjustment of such variable vibrations.

A further object of my invention is to devise a novel turn over mechanism for the inking rolls, whereby, on a predetermined extent of revolution, they are automatically locked in position, and on a further predetermined revolution they are automatically unlocked, and novel means are provided for causing the inking rolls to cooperate in timed relation with the impression forms to which the color they carry is adapted to be applied.

With the above and other objects in view, as will hereinafter more clearly appear, my invention comprehends a novel inking mechanism for multi-color printing presses.

It further comprehends a novel multi-color printing press wherein the type beds can all carry impression forms and travel in a continuous path so that during a single cycle the proper color is applied to all of the impression forms.

t further comprehends a novel construction and arrangement of inking mechanism wherein the inking rolls and their controlling elements have imparted to them a continuous rotary motion.

It further comprehends a novel turn over mechanism for the inking mechanism wherein novel means are provided for locking and unlocking the inking rolls at the proper times.

Other novel features of construction and advantage will hereinafter more clearly appear in the detailed description and the appended claims.

For the purpose of illustrating the invention I have shown in the accompanying drawings a typical embodiment of it, which, in practice, will give satisfactory and reliable results. It is, however, to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized, and my invention is not limited to the exact arrangement and organization of these instrumentalities, as herein set forth.

Figure 1 is a top plan view of a multi-color printing press embodying my invention.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a section on line 3-3 of Figure 1.

Figure 4 is a rear elevation of the machine partly in section, the section being taken substantially on line 44 of Figure 1.

Figure 5 is an end view of a pair of inking or form rollers.

Figure 6 is a plan view of the construction seen in Figure 5, but showing in addition the vibrating mechanism.

Figure 7 is a plan view of portions of the vibrating mechanism.

Figure 8 is a plan View of the turn over mechanism of one set of inking rollers.

Figure 9 is an end elevation of the construction 15 seen in Figure 8.

Figure 10 is a plan View of the turn over mechanism of another set of inking rollers, and showing in addition a lifting cam and its cooperating mechanism.

Figure 11 is a top plan view of a portion of the inking mechanism showing more particularly, and on a larger scale, the driving means for the inking rolls.

Figure 12 is a side elevation of the vibration means for the inking rolls of set C.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings:-

I designates the frame of the machine, the construction and arrangement of which may vary widely in practice. The base portion of the machine is ordinarily a casting in order to give sufficient rigidity to the operation mechanism and eliminate, as much as possible, the vibrating to which machines of this character are subjected.

The frame is provided with inner and outer anti-friction supports 2 and 3 respectively, which form tracks on which the type beds 4, travel. The type beds are linked together by means of a continuous chain 5, and this chain is of the roller type, having the rolls 6 which travel between spaced guides I, which are arranged in such a manner that they form an elliptical path.

Each type bed 4 carries a longitudinally extending rack 8 having rack teeth on its bottom end adapted to be driven by a pinion 9, carried by a shaft I II, suitably journalled in the frame of the machine. The shaft I 0 at its opposite end has fixed to it a gear II see Figure 3, which 50 meshes with a driving pinion I2 carried by a shaft I3, suitably journalled in the machine frame. The shaft I3 is provided with a sprocket I4 around which passes a silent chain I5 which also passes around a sprocket IE on the shaft of a motor ll. 55

strikes the guide as It will thus be seen that when the motor is running the driving pinion 9 is continuously driven, thereby due to the provision of. the chain 5 imparting a travel to all of the type beds to cause them to move in an elliptical path.

The rack bars 8 are arranged in such a manner that as one rack bar moves out of engagement with the pinion 5 the next rack bar is at the same time beginning its engagement with it, so that an accurate and continuous movement is imparted to all of the type beds as they are all interconnected by the chain 5.

In accordance with my present invention it is not necessary to employ an idle type bed and all of the type beds can carry impression forms i8.

I have thus far described the construction for causing the travel of the type beds.

l9 designates the impression cylinder which is carried by a shaft 2o journalled in the machine frame and provided with a gear 2! which meshes with and is driven by the gear I i.

The impression cylinder is provided with any desired or conventional form of sheet gripping mechanism 22.

As illustrated, the sheets to be printed are fed into the machine by hand on a feeding table 23 and moved forwardly against an adjustable guide 24 which operates in the well known and conventional manner, so that, at the proper time, when the grippers 22 are in position to receive the sheet,

front guides E i are automatically lifted out, and

the grippers, gripping the sheet 25, fixes it relatively to the impression cylinder and carries it around with it.

At each revolution of the impression cylinder one color is applied to the sheet which it carries. During the last impression, the grippers 22 are released and the stripper fingers 25 are brought into action in the usual and conventional manner in order to cause the sheets to be stripped from the impression cylinder and transferred to grippers 21. The grippers 2': are in an open position to receive the sheet, the opening of the grippers being caused by a stationary cam 28. The grippers close and grip the paper and start to carry the sheet with them, and the travel of the grippers is at the same peripherial speed as that of the impression cylinder Hi, this being essential to prevent the bulging or stretching of the sheets during the time of transfer, since the back end of this sheet is still being received on the impression form. a V

The grippers 21 are carried by an endless chain 36 which travels around sprocket wheels 3 l. The shaft 32 of one sprocket wheel 3 i is provided with a gear 33 which meshes with an idler 3 I which in turn meshes with the gear 25 thereby imparting a drive to the grippercarrying chain as.

Continuing the description of. the transfer mechanism, the end sprocket wheel 3| has mounted in proximity to it a curved guide After a sheet carrying gripper travels around the end sprocket 3i it is brought to the lower stretch of the chain so that the position of the grippers is now reversed, and the sheet carried by it-is turned bottom side up, thus the printed side of the sheet is turned up. As the gripper carrying a sheet 25 comes into contact with a stationary cam 35, such gripper is released and the sheet and drops to the receiving table 31, so that the sheets pile one above the other with their printed faces on top. An ad justable guide 33 is also provided which operates in the usual and conventional manner to effect the piling of the printed sheets on the table 3'1,

This table, as illustrated, is carried by a separate standard 39.

The table 3! in practice, can be lowered step by step as the sheets are piled up, by means of any conventional type of table controlled mechanism, and I have therefore deemed it unnecessary in the present instance to describe in detail the 0011- struction and arrangement of such mechanism which is well known to anyone skilled in this art.

The inking mechanism In accordance with my present construction, I provide inking mechanism whereby each impression form receives at the time its individual color. For the purpose of illustration only, I have shown the machine as adapted to print five colors and I have therefore shown five impression forms with the necessary inking mechanism for such forms.

The shaft 53, shown in Figures 1 and 3, has fixed to it a pinion 49. The left hand portion of Figure 4, is shown in section, while the right hand portion is shown in side elevation, and it will be understood that I employ two sets of driving mechanisms for the inking rolls, and such driving mechanisms are substantially identical.

The pinion lil meshes with a gear 4|, journalled on a stud 62 carried by the machine frame. This stud meshes with a gear 53 carried by a stud on the machine frame. The gear 43 meshes with a gear Z5 which is loosely mounted on a shaft 46, journalled in the machine frame.

The gear at: meshes with a pinion 41 mounted on a stud it carried by an arm $9, which at its inner end is fixed to the shaft it. The pinion il meshes with a pinion 53 which is fixed to a pinion iii to revolve in unison therewith, and both of the pinions and 5! are loosely mounted on. a rock shaft 52 which is carried by the arm it and an arm 53, see Figure 6, said arm being fixed to the shaft 46.

The pinion 5| meshes with two pinions 55 which are mounted on the shafts 55 which carry the vibrator rolls 5% These This frame is of skeleton construction, as best seen in Figure 5.

The vibrator rolls 58 are in frictional engagement with inking rolls shafts of which are mounted on journals 52, carried by the frame 5?, see more particularly Figure A gear so is connected with the gear 5i and 5! to revolve in unison therewith. The gear til is best'seen in Figures 5 and 6. The gear 61! meshes with a gear iii mounted on a shaft which is journalled. in the frame 5-1, in any desired manner.

wheel 64, mounted on the shaft 65, journalled in the frame 5'4. A shaft 55 has a disc 66, which has a T shaped slot t'i which adjustably carries a stud 58 which acts as a crank pin for the con- 'necting rod 89, andwhich at its outer end is piv- V shafts 55 extend beyond the frame 5'! and are iournalled'in it.

The shaft 62, carries at its other end a worm 53 which is in mesh with the worm The tube ll has iixed to it at its outer end.'

a double fork l3, the ends of which are received in the grooves M at one end of the vibrator rolls 55, so that during the reciprocation of the connecting rod 59, the vibrator rolls will have imparted to them a reciprocatory movement. The travel or length of stroke of the vibrator rolls can be adjusted by .adjusting the position of the stud 68 in the slot iii, by means of a fastening device 75.

I6 designates the ink fountains, which are of any desired or conventional construction, and which are carried by an auxiliary frame Ti secured to the main frame I, see more particularly Figure 4. Each ink fountain is provided with a fountain roll it, an intermediate composition roll I9, and a doctor roll 80, all of which are constructed and operated in the usual and well known manner.

Provision is made for bringing a set of inking rolls 50 into the path of a predetermined impression form. This is accomplished in the following manner.

The shaft it, see Figure 4, has what may be called a floating fulcrum, and connected to it re the arms G9 and 53 and also an arm BI which carries a roller 32, which is in the path of a cam 83 fixed to a shaft 84. The arm BI has fixed to it, one end of a spring 85, the opposite end of which is fixed to a. stationary portion of the frame I? so that the tendency of the spring is to retain this roller 82 in engagement with a cam 83.

The shaft 84 is driven from the pinion 43, as will now be explained, reference being directed to the right hand portion of Figure 4.

The pinion 4i! meshes with a gear 85 which is fixed to a pinion 85, and this gear and pinion .are mounted on a stud 87 carried by the frame. The gear 38 meshes with a gear 88 fixed to a pinion $9, and the gear 88 and pinion 89 are mounted on a stud shaft 90, carried by the machine frame.

The pinion 89 meshes with a pinion 9|, journalled on a stud 92 and meshing with a gear 93, loosely mounted on the shaft 46. The gear 03 meshes with a gear 9 fixed on the shaft 84, thereby causing the drive of the cam 83.

The shaft 84 also carries a closed cam 95 into the groove of which fits the roller 96 carried by the arm 91, the lower end of which is fulcrumed to the machine frame by the stud 98. A link 99 connects the arm 01 to a ratchet arm I00, the opposite end of which is connected by a link IOI to another ratchet arm I02 of the next fountain. The ratchet mechanism feeds a predetermined amount of ink from the fountain to its rolls and is constructed and operated in the usual and well known manner, so that detailed description of its construction and operation is unnecessary. I

The arrangement of the ratchet mechanism is such that one cam effects the feed of both fountains, and during the operative stroke of a ratchet mechanism for one fountain, the ratchet mechanism for the other fountain is making its inoperative stroke.

The turnover mechanism for the inking rolls In my present invention, I provide turnover mechanism for the inking rolls so that the turnover is effected by a continuous rotation of the controlling elements and thus eliminating the necessity of employing reciprocating or oscillating parts, and thus one is able to run the inking mechanism at a much higher speed. I also eliminate in a large measure the vibration to which machines of this character are subjected, due to t e recip ocat y and oscillatory movements.

The turnover mechanism is controlled and timed by a disc I 03 forming a driver which is loosely mounted on a shaft 46, but is connected with the gear 93 to revolve in unison therewith.

The disc I03 drives a disc I04 forming an indexing device, which is keyed to the rock shaft 52, and the frame which carries all of the inking rolls is also keyed to this rock shaft .52. 5

The disc I 03 is provided with three pairs of rollers I05, arranged in spaced relationship around the periphery of the driving disc I03.

In the present machine, the inking mechanism is shown in such a manner that one set is provided for two intermittent movements during one revolution of the disc I03.

During the rotation of the disc I03, the lead roller of a pair of rollers I05 enters into one of the slots I56 on the disc I04 which is tangentially disposed on the center line of the rollers, and these slots are arranged in pairs and are disposed around the disc so that center lines between the slots are 120 degrees apart, so that during the operative movement of a pair of rollers I05, the disc I 05 has imparted to it one-third of a revolution, except on the last portion of the revolution. Two-thirds of a revolution is imparted to the disc I0 3 instead of a one-third revolution, due to the spacing'of the pairs of rollers on the disc I03.

This partial revolution of the disc I 64 causes a different set of inking rolls to be brought into operative position with respect to the next impressionform which is to receive color.

I provide novel means for locking the inking mechanism in the position to which it has been adjusted so that during inking, a pair of inking rolls are positively locked in their inking position. For this purpose I provided between each pair of slots 506 a locking roll I ill, and, during the period in which a set of inking rolls are locked these rolls I 07 ride on the periphery of the disc I 03, as shown in Figure 8.

Between each pair of rollers I65, the disc I03 which carries them is provided with a recess or pocket I08, and, during the turnover movement of the inking mechanism, these rollers are received in one of said pockets as will be clearly understood by reference to Figure 19.

The Walls of the slots see nearest to the center line of the two slots are provided with curved clearances for the rollers to clear while going in and out of the slots. disc I33 has cam portions I09 so that at the time of finishing or starting of the turnover movement, and as heretofore explained, the center walls of the slots being curved for clearance, a space or gap H0 is left, as shown in Figure 8. A roller I07 slides on the cam I09 on the disc, thereby eliminating the lost motion which would have been caused by the gap I I0 if the cams we were not present.

The rollers I I are mounted in such manner that they can be adjusted to compensate for wear.

In order to accomplish this without upsetting the accuracy of the machine or changing the relative position of the rollers from their location of 120 degrees apart, I provide two holes MI, in the disc I04 which are disposed 120 degrees apart. The arm 49 is provided with a single hole H2, and a pin IE3 is provided, which is adapted to extend through the selected holes III and into the hole H2, thereby positively locking the disc I04 with respect to the arm 49, then, while the disc I04 is in a fixed position with respect to 49, the rollers Hi7 are radially ad justed.

For this p pose, the disc it i is provided with radial slots IM- through which pass the studs II5, which are fixed in position by means of nuts H6, so that the position of the rollers IIlI can be adjusted to compensate for any wear to which they have been subjected.

In the type of machine herein shown, five impression forms are employed, and it is therefore necessary to employ five fountains with their cooperating inking mechanisms, it being understood that for each impression form, an inking mechanism is essential so that it will receive its color.

The set of inking mechanisms for the last of the set of five impression forms, is located as herein shown, in proximity to the impression cylinder, as will be best'seen from Figures 1 and 3.

The gear 2| meshes with a gear II8 carried by a shaft IE9, journalled in the machine frame. A gear I26 is fixed to the gear II8 to revolve therewith, and this gear meshes with an idler I2 i, suitably journalled and meshing with a gear I22, fastened at the end of the vibrator shaft I23.

The vibrator i2 3 carried by the vibrator shaft, is in frictional engagement with the inking rolls I25, which are journalled in oscillatory arms I25. The shaft I It has fixed to it, one end of an arm I21, which carries a roller I28, which is in engagement with a cam 25, fixed to the shaft 84.

I35 designates an inkfountain. I3! is the fountain roll. I32 is a doctor roll. The means for producing the proper movement of the vibrator roll is best seen in Figures 1 and 12.

The shaft 8 3 is provided with a cam I33 having a cam groove with which a roller I35 cooperates, said roller being carried by a rock arm I35, mounted on a boss I55, carried by the machine frame. This rock arm I35 at its upper end, is provided with a fork, to engage an annular groove I3! on the vibrator roll, so that 'as the arm I35 is rocked the vibrato-r roll will be reciprocated.

The sheet delivery mechanism is provided with a pair of chains I38, see Figures 1 and 2, which pass around sprocket wheels I39 on the shaft 32. These chains I36 also pass around sprocket wheels on the shaft MI which is the shaft which carries the sprocket wheels (H at the delivery end of the machine.

7 Each chain I38 are block chains in construction, and, on the blocks, are provided with upwardly extending needle points MI. The purpose of these needle points is to support a sheet being delivered with the printed side down, so

that the printed side will be supported on the needle points instead of on the chain, and there will be no possibility of blurring the printing on the paper.

The speed of these needle chains having the needle points, are exactly the same as the chains carrying the grippers, thereby causing them to travel as a unit, and the needle points come in contact with the printed sheet at one point will constantly remain at that one particular point without pulling or scratching. This construction is more clearly shown in Figures land 2.

The operation of my novel multi-color printing press will now be apparent to those skilled in this art and is as follows.

.The sheets'to be printed are fed into the ma.- chine in any desired manner, and for the sake of simplicity, I have shown a machine adapted to be fed by hand, although, as is apparent, any desired type of feeding mechanism can be attached to the machine.

Assuming now that the sheets are fed by hand,

the sheets 25 are fed one at a time against the front guide or stop 24. Assuming now that the motor I! is driving the main driving shaft I3, it will be apparent from Figures 1 and 3 that a drive will be imparted to the shaft I0 and through the gears II and 2| to the impression cylinder I9. The grippers act in the well known and conventional manner to grip the sheet which has been fed to the impression cylinder, so that the fed sheet will be carried around the impression cylinder during the revolution of the latter.

The type beds 4, which carry the impression forms I8, have a continuous movement imparted to them, since the gear 9 is, at all times, meshing with a rack 8 secured to the bottom of a type bed, the arrangement being such that when the rack of one type bed moves out of engagement with the driving pinion 9 the rack 8 of the next type bed will come into engagement with such driving pinion 9. The type beds are all connected together by means of a link connection, as hereinbefore described, so that all of the type beds move at the same time and have a continuous movement imparted to them.

In the present construction, I have shown three sets of inking mechanism, A, B, and C respectively. The sets A and B are each provided with two pairs of inking rolls, while the set C is provided with a single pair of inking rolls.

As shown in Figure 4, set A of the inking mechanism has a pair of inking rolls in inking position, while the inking rolls of set B has both pairs of inking rolls out of their inking position.

As the shaft 53 is being continuously driven, the pinion M3, carried by it, drives the gear as well as the gear ill. The gear 4| drives the gear i?) which is similar to the gear-85, both being alike in size and, construction of their teeth.

The gear d3 drives the gear 45, which is loosely mounted on the shaft 45 and drives the gear 41, which in turn drives the gear 50. The gear 50 and 5i are connected to rotate in unison, and the gear 5| meshes with two gears 54. The gears 54 are attached to the ends of the vibrator shafts 55 which carry the vibrator rolls 58. These vibrator rolls 56 are in frictional engagement with the inking rolls 58, so that each pair of inking rolls 58 is being driven at the same peripherial speed as that of the type bed which is passing beneath them. Each set A and B of the inking mechanism has the same driving means for the inking rollers, and in Figure 4 at the left hand side of the figure, I have shown the driving means for the inking rolls, while at the right hand side of this Figure 4, I have shown only the driving means for the turnover mechanism.

In the construction illustrated, the arrangement is such that the first impression form receives its color from a pair of inking rolls of the set A. The second impression form receives its color from a pair of inking rolls of set B. The third impression form receives its color from a pair of inking rolls of set A. The fourth impression form receives its color from a pair of inking rolls of set B, and the fifth impression form receives its color from the pair of inking rolls of set C.

In other words, each impression form has its own set of inking rolls and at a selected time receives its proper color.

Operation of inking rolls WhiIe a pair of inking rolls of set A, for exof set B rocks the arm BI the turnover mechanism for set B is operated to bring its other pair of rollers into position for the next inking operation of set 13.

The operation of the turnover mechanism The disc I 03 is continuously revolving in the same direction, see Figure 4, and the parts are so timed that one revolution of a disc I03 represents one cycle of the machine. Referring now also to Figures 8, 9, and 10, in Figure 8, the parts are shown in position to begin the turnover operation, and the duration of the inking period and of the turnover period are indicated on this figure.

A roller I05 is entering a. slot I06 in the disc I 04, causing it to revolve. These slots I06 are not radially disposed. A pair of slots I06 and a pair of rollers are employed, as best seen in Figure 10, in which figure a pair of rollers I05 are engaged in the slots I06. The main object in using this arrangement is to provide a gradual start and stop of the disc I04 it the heavy sets of inking rolls, thereby eliminating shocks and jars, and enables the machine to run at a higher speed.

Locking means for disc 104 The disc I 04 which carries the inking rolls and determines their inking position is provided when a positive locking device which looks the inking rolls in a positive stationarypositionwhich eliminates any possibility of roller marks on the impression forms, as will be clear to those skilled in this art. A disc I04 carries three radially disposed rollers spaced 120 degrees apart. The disc I03 turns the disc I04 one-third of a revolution, and the next step'two-thirds of a revolution, and therefore the locking rollers I0'I are in positions to which it has been moved. Two of the rollers I01 travel on the periphery of the disc I03 during the inking period, thus locking in position the operative pair of inking rolls.

Unlocking operation of disc 104 During the revolution of a disc I04, a pocket I 08 on the disc I03 is brought into the path of a roller I01 which enters said pocket, see Figure 10. The pockets I08 provide clearance for the rollers I07 when the disc I04 is unlocked.

The sets A and B have two sets of inking rolls set in position 120 degrees apart, see Figure 5. Since the turnover movement is a continuous ro tary motion, it will take a one-third revolution to bring one set or pair of inking rolls into operative position, and two-thirds of a revolution to bring the other pair or set of inking rolls into operative position.

Operation of set C of inking rolls The inking rolls I25, see Figure 3, are frictionally driven as hereinbefore explained in detail. At the proper time, the cam I29 rocks the rock arm I21, bringing the inking rolls I into operative position and also raises the rolls at the proper time and retains them for the desired period in their inoperative position.

Operation of delivering the printed sheets When the grippers 22 of the impression cylinder I9 contact with the gripper releasing member in the usual and conventional manner, which it is not necessary to show or describe, the front end of a sheet is released from the impression cylinders, and the stripper 26 strips the sheet from the cylinder and transfers it to the delivwhich carries with a needle points I 4|. Each of the chains 30 has a gripper. The needle points prevent the printed face of a sheet contracting with the chains or the conveyor shafts, and also provides a proper support for a sheet as it passes around the loop at the end, see Figure 1. The grippers 21 are released by the cam 35, and the sheet drops printed side up on the receiving table 31. This table may be automatically lowered step by step in the usual and conventional manner.

The impression cylinder makes four revolutions and during the fifth, or last revolution, the printedsheet is delivered. The sheet is delivered during the fifth revolution of the impression cylinder so that it is not necessary to have an idle type bed or a dwell between type beds, thereby materially increasing the output or capacity of the machine, Without increasing the length of the cycle.

My present application is a division of my application, Serial No. 203,880, which eventuated into Patent No. 1,879,597.

It will now be apparent that I have devised a new and useful inking mechanism for multicolor printing presses which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof which will give in practice satisfactory and reliable results, it is to be understood that this embodiment is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:-

1. In a multi-color printing press, sets of inking mechanisms, each set having a pair of inking rolls mounted on a support which is rotatable about an axis remote from the axes of the printing rolls, and continuously revolving means revolved into intermittent driving relation with said rolls to progressively move the inking rolls of said sets into and out of their inking positions.

2. In a multi-color printing press, sets of inking mechanisms, each set having a pair of inkink rolls mounted on a support which is rotatable about an axis remote from the axes of the printing rolls, and continuously revolving means revolved into intermittent driving relation with said rolls to progressively move the inking rolls of said sets into and out of their inking positions and means to lock said rolls when in inking position.

3. In a multi-color printing press, a pair of inking rolls, a support for said rolls rotatable about an axis remote from the axes of said rolls, a continuously revolving driver, and a member intermittently revolved by said driver and connected with said support to cause said inking rolls to move into and out of their inking position.

4. In a multiple-color printing press, sets ofinking rolls, each set having a pair of inking volved driving disc, and a driven disc intermittently driven by said driving disc to selectively position one of said pairs of inking rolls in inking position.

5. In a multiple-color printing press, sets of inking rolls, each set having a pair of inking rolls and a support rotatable on an axis remote from the axes of the rolls, a continuously revolved driving disc, a driven disc intermittently driven by said driving disc to selectively position one of said pairs of inking rolls in inking position and locking rolls carried by said driven disc and locking with said driving disc to look a pair of inking rolls in inking position,

6. In a multi-color printing press, sets of inking rolls mounted for rotation about an axis remote from the axes of the rolls, a continuously revolving driver, a driven member intermittently driven by said driver and connected with said support to cause two intermittent turn over movements of said inking rolls during one revolution of said driver.

'7. In a multi-color printing press three sets of inking rollers, two of which have two pairs of I rolls and the third of which has a single pair of rolls, and means to bring a pair of rolls of each set into inking position in selected timed relation with each other.

' QSCAR I-I. BANKER.

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