US1874013A - Rotary color printing press - Google Patents

Description

Aug. 30, 1932. c. R. KADDELAND ROTARY COLOR PRINTING PRESS 12 Sheets-Sheet 1 Filed April 8. 1927 C. R. KADDELAND ROTARY COLOR PRINTING PRESS Filed April 8. 1927 1,2 Sheets-sheet 2 INVENTOR BY A Y, A 'I l l il? ATTORNEY ROTARY COLOR PRINTING PRESS Filed April 8. 1927 12 Sheets-Sheet 5 20.5 64 9mm... f

Aug- 30, 1932. c. R. KADDELAND l,874,013

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ROTARY COLOR PRINTING PRESS Filed April 8, 1927 12 sheets-sheet 5 INVENTOR wen E, 1 1

BY nel t als ATTORNEYS Aug- 30, 1932 c. R. KADDELAND 1,874,013

ROTARY COLOR PRINTING PRESS Filed April 8, 1927 l2 Sheets-Sheet 6 INVENTO rifem dd nel i nl* A 1:6 ATTORNEYS I 'Aug 30, 1932 c. R. KADDELAND 1,874,013

' ROTARY COLOR PRINTING PRESS Filed April 8. 1927 12 sheets-sheet 7 y R n@ SQ Q.

vQ ll-n alf ATToRNEYa Aug- 30, 1932- c. R. KADDELAND ROTARY COLOR PRINTING PRESS Filed April 8, 1927 12 Sheets-Sheet 8 I lNVENTOR Czwl. and BY 7(1,6 ATTORNEYS Aug 3, i932. c; R. KADDELAND ROTARY COLOR PRINTING PRESS Filed April 8. 1927 12 Sheets-Sheet 9 INVENYOR cmmddf Aug@ E@ @932.

c. R. KADDELAND m ROTARY COLOR PRINTING PRESS r'Filed April 8, 1927 12 sheets-sheet 10 Zw ATTORNEYS c. R. KADDELAND 1,874,013

Aug. 30, E932.

ROTARY COLOR PRINTING PRESS l2 Sheets-Sheet ll Filed April 8, 1927' www1 ug 39 @932- c. R. KADDELAND 3,87%@33 ROTARY COLOR PRINTING PRESS Fild April 8, 1927 12 sheets-sheet l2 Patented Aug. 30, 1932,

UNITED STATES PATENT OFFICE CHRISTEN R. KADDELAND, OF SHELTON, CONNECTICUT, ASSIGNOR TO HARRIS, SEY- IBOLD, POTTER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF DELAWARE ROTARY ooLoB. PRINTING raEss Application filed April 8,

The object of my invention is to provide a press of this character with a number of printing couples each composed of suitable water and inking rollers, a plate cyllnder, a blanket cylinder, al1-impression cylinder and between each couple is placed a transfer cylinder of greater diameter than any of the cylinders in any couple and preferably twice the ,diameter so that any number of couples may be put in one frame and any desired number of colors may be successively applied to a sheet of paper passing through the press so that color. effects in infinite variety. may be produced. In the preferred embodiment of my invention, the plate and blanket cylmders are placed vertically, one above the other, the impression cylinders a little below and to one side of the blanket cylinders with which they cooperate and each couple issymmetrlcally placed in the machine so as to allow ample facilities for cleaning and handling and operating in addition to the other advantage above set forth.

A further object is to provide certain tripping mechanisms which operate either automatically in cooperation with paper feed devices or manually so that the machine may properly function at all times, and yet a further object is to provide means for throwing out one or more couples without disturbing in any way the action of the remaining couples.v A

Yet a further object is to provide a press complete in every respect with manydetails of construction incidental to the principal objects above set forth. These and other objects are accomplished by my invention, one

embodiment of which is hereinafter more particularly set forth.

For a more detailed description of my invention, reference is to be had to the accompanying drawings, forming a part hereof, in which Figure 1 is a side elevation of a machine embodying my invention. v

Figure 2 is a fragmentary sectional view showing the sheet registering mechanism, the first impression cylinder, a transfer cylinder and a second impression cylinder.

Figure 3 is an enlarged View of the mecha- 1927. serial No. 181,966.

nism for automatically establishing or breaking printing relations between the Various nism in which the -sheet is missing and the` mechanism, therefore, is positioned with a view to breaking the printing relations between the printing couples.

Figure 7 also represents the same mechanism in which the sheet registering guide is swung inward to permit the sheet to pass through the press.

Figures 8 and 9 are sectional views on the lines 8-8 and 9-9 of Figure 5, looking in the direction of the arrows.

Figure 10 is a sectional view, taken on the line 10-10 of Figure 3, looking in the direction of the arrows.

Figure'll is a view of the gripper operatin trundle cam.

igure 12 is a view of the lug trip or latch relay mechanism by which the tripping of the second or succeeding printing units is delayed or timed with reference to the' firstprinting unit.

Figure 13 is a sectional view taken on the line 13'-13 of Figure 12.

Figure 14 is a detailed view of the delay tripping operating studs.

Figure 15 is a sectional view, taken on line 15-15 of Figure 12, looking in the di- .rection of the arrows.

Figure 16 is a sectional view, taken on the line 16-16 of Figure 3.

Figure 17 is a detailed View of the trip actuating boss, the section being taken on the line 17--17 of Figure 18 which shows the trp actuating boss and connections at each s1 e.

Figure 19 is a view showing the sliding journal box for a plate or form cyllinder.

Figure 2O is a sectional view, ta en on the line 20-20 of Figure 19, looking in the direction of the arrows.

Figure 21 is a fragmentary view showing the adjusting mechanism for adjusting the blanket and plate cylinders of each couple with reference to each other. A similar construction is used to adjust the relative positions of the blanket and impression cylinders.

Figure 22 is a side elevation of an upper portion of a printing couple showing a portion of the inking mechanism, the inking rollers being shown in functioning relation to the plate cylinder, and

Figure 23 shows these rollers tripped away from the plate cylinder..

Figure 24 is a detailed view showing the inking roller brackets. j

Figure 25 is a view of the cam actuating mechanism for the front guides and detector mechanism.

Throughout the various views of the drawings, similar reference characters designate similar parts.

By referring to Figure 1, it will be seen that a printing press is shown with two couples connected by a transfer cylinder. It is obvious that it is a mere matter of duplication to increase the number of couples and transfer cylinders and no change whatsoever, except enlar ement, will be required excepting that the elivery mechanism will be shifted to corres ond so that it is unnecessary to describe in t is case more thanl what is shown, it being understood that it is within the purview of my invention to use as many couples as desired.

My improved multi-color press 1 receives paper 2, of the conventional kind, which is in the form of sheets which have been cut to the requisite dimensions. This paper is fed to the machine by a suitable paper feeding mechanism, not shown, but connected at 3 in Figure 1, and is brought to the guiding mechanlsm 4 and from there passes to the first impression cylinder 5 where it is given one color from the blanket cylinder 6 and from the first impression cylinder 5 the paper passes to the transfer cylinder 7 which is larger than the impression cylinder 5 for the reasons above iven and from there to the second impresslon cylinder 8 and in a similar manner, if there be more than two couples, is passed from impression cylinder to transfer cylinder until the last couple is reached, each secondary impression cylinder 8 havin its blanket cylinder 9 corresponding to t e blanket cylinder 6 and functioning in exactly the same manner. From the last impression cylinder 8 the sheet is delivered to the usual chain carrier or cylinder mechanism 10, in the conventional manner.

Each blanket cylinder 6 or 9 receives its design from a plate cylinder 11 which is supplied with Water rollers 12 and ink rollers 13 which may be mounted in the conventional manner or in any other suitable manner, as desired. By means of mechanism described below the inking rollers .13 are always separated from their respective plate cylinders 11 when the plate cylinders become inoperative.

The printing couples and attendant mechanisms are mounted in the frame 14 of the machine.. As will appear below, the paper carrying cylinders all have fixed bearings, that is the cylinders 5,7 and 8, and the blanket c linders and plate cylinders have movable earings, as will appear below. These cylinders are always geared together, kas usual.

The tripping mcham'em It is obvious that if the machine is to function properly, the paper fed to the machine must be set absolutely true before it enters the machine and if the paper does not set true or if no paper be fed, the printing couples should be rendered inoperative and the inking rollers should be separated from the plate cylinders.

The paper truing and machine tri ping mechanism will now be described in etail. When the paper 2 is fed by and from the paper feed mechanism located at 3, the front edge of each sheet eventually arrives fat the aligning and tripping mechanism 4, as indicated in Figure 5. Assuming that this paper comes true, as it normally does, its front edge comes against the registering plates 15, any suitable number of which may be employed, although I have found that two, one near each side of the machine, are suiiicient. Each late has a bottom recess 16 to receive the ower end of a bar which may be called a pendulum 17 which has ears 18 at each side that are perforated and pivoted on a suitable pin 19 let into the boss 20 which is mounted on an oscillating shaft 21 and held in Ifixed relation thereto by means of a set 25 is an ordinary disc cam which is engaged by a suitable pintle or cam roller 28 carried by a lever 29 pivotally` mounted on a suitable stud 30 which is secured to the frame 14 of the machine. The lever 29 has one rub surface 31 which actuates a lever 32 fixed to the shaft 21 and above this is a surface 33 carrieden a projection 34 of the lever 29 which lcam 25. The cam 25 is shaped so as to raise the lever 29 at the proper time in the cycle of operations and thel spring rod 37 lowers this lever, in the conventional manner. From this it appears that both the parts 33 and 35 may be held off the cam lever 29, or either of them may be held ofi' if the functioning of the apparatus so requires. A spring rod 37a, similar to 37, keeps the arm 32 in place.

The boss 20 has a projection 39 which carries a guide 40, as indicated, which passes into the recess 16 and astride of the pendulum 17, as shown in Figures 8 and 9. This guide may be given any suitable shape and is preferably shaped, as shown in Figures 5, 6 and 7', and it may be held to the boss in any desired way, but is preferably held by a cap screw 41, as indicated. The function of this guide 40 is to bring the forward edge to the paper 2 against the stop 15, as above stated. When this paper strikes true the pendulum 17 is brought to the position shown in Figure 5. When the paper isfed true, the oscillation of the shaft 21 lets it by. l/Vhen the paper is not fed or fed in an irregular way so as not to strike the stop 15, the upper end 42 of the pendulum 17 overbalances the lower end, as indicated in Figure 6, and then this end may engage the hook 43 at the lower end of the arm 44 which is fixed in a boss 45 that is held in fixed relation to the shaft 24 by means of a set screw 46 or any other suitable means. A set screw 47 holds the arm 44 in place: When the apparatus is functioning normally and thepaper 2 is being fed in the normal manner whenever a front edge of a sheet 2 strikes the stop 15 and pendulum 17,

'the upper end 42 of the pendulum is carried free of the hook 43 so that the arm 44 can swing without interference and this permits the sha-ft 24-to turn without interference. This arm, as above set forth, is driven from the cam 25 in one direction and in the other direction it is driven by a coil spring 48 which has its lower end connected to an arm 49 fixed to the bearing 23 and its upper end engaging a crank 50 fixed to the shaft 24. The crank 50 is pivotally connected to a link 51 with a slotted lower end which has a movable pivotal connection with a lever 52 which is pivoted at 53 to a rigid pivot connected to the frame 14 of the machine. The lever 52 has its other end connected to a link 54 by a fixed pivot which runs to substantially the center of a pin 55 fixed in the frame 14 which pin carries a number of levers including a cam lever, as will appear below. The link 54 is connected 'to a lever 61 with several branches.

to an arm 56 by a pivotal connection and this arm is rigidly secured to a latch 57 adapted to take over a block 58 which is rigidly ixed to a cam lever 59. The latch 57 is pivotally mounted on a stud 60 which is fiied ne of the branches carries the pivot 60 and runs to the stud pin 55. Another branch 62 extends towards the front of the machine and connects with mechanism for controlling the grippers on the first impression cylinder, as will appear below, and also the tripping mechanism, as will appear below also. Another branch 63 which extends from the arm 61 is connected by a link 64 to a timing mechanism, described below, which governs the action of the printing couple in a manner which will hereinafter appear, and yet another branch 65 initiates the operation of the tripping mechanism for the first couple. Power for operating this lever 61 is derived through the parts 57 and 58 when they bind together in a manner set forth below. If they do not so-bind, the cam lever 59 rocks idle on the pivot 55. Power for actuating the cam lever 59 is derived throu h a pintle 66 which is carried at its free en as shown in Figure 3, and this pintle runs in a suitable cam groove 67 in a cam 68 shaped, as shown in Figure 3, and ixedly mounted on the shaft 27. The rear face of the cam 68, looking at Figure 3, is provided with another cam groove indicated in dotted lines and this actuates a cam lever which will be described' below. When paper 2 is fed normally and the apparatus functions, as usual, the arm 50 will rise and fall being raised by the cam action and lowered by the spring action of the spring 48. The loose pivot at the lower end of the link 51 permits the unrestricted movement of this arm according to the cam and spring. When, however, no paper appears properly at the stop 15 at the right time, the pendulum 17 is overbalanced, as shown in Figure 6, and then the arm 44 finds a stop which limits the oscillation of the shaft 24 and this gives a corresponding limitation to the movement of. arm 50 and connected parts, including vthe links 51 and 54 and then the latch 57 is not swung clear of the blocks 58 so that this latch engages the blocks and then the cam lever 59 is locked to the lever 61 and the two move clockwise as a unit under the influence of the cam 68. When this occurs the tripping mechanism is actuated in a manner which will be described below.

When the cam levers 59 and 61 engage, as above set forth, they also engage through projections 69 and 70, as shown in Figure 3.

- The timing 'mechanism As the mechanisms for moving the blanket and plate cylinders are substantially identical in each printing couple, a description of them will be given below and here will appear a description of the means for producing successive action beginning with the first couple and so on through the remaining couples. f

The link 64 runs to a lever 71 to which it is pivotally connected and which is fulcrumed on a pin 72 fixed in a plate 73 which is offset from the frame 14 and held by bolts 74, as indicated in Figures 12 and 13. The lever 71 is shifted in one direction through the `up ward pull of the link 64 and against the tension of the spring rod 75 which has one end pivotally connected at 76 with the lever 71 and the other passes through a suitable bracket or guide 77 which is fixed to the plate 73 by means of suitable bolts. The end of the lever 71 which is remote from the link 64 is provided with a pin 78 with a` conical head 79 (see Figure 13) which is adjustably mounted, as indicated, and firmly held so that it may engage either the inner pins 80 or thel outer pins 81 which are carried in the boss 82 which is fixedly mounted on the shaft 83 of the transfer cylinder 7. It will be noted that the boss 82 carries two sets of pins 80 and 81 and they are diametrically opposite. This is because the transfer cylinder 7 has twice the number of gripper units of the impression cylinders 5 and 8. If the number of gripper units of the transfer cylinder 7 were three times the number on the cylinder 5, it would be necessary to have three such sets of pins, symmetrically placed. From this it is apparent that the number of sets of pins 80 and 81 will vary to correspond with the number of gripper units of the cylinder 7 as compared With the cylinder 5. The boss 82 and connected parts constitute a positively, driven timing mechanism which must keep step with the transfer cylinder because it is fixed to the axle 83 thereof by a key, as shown in Figure 13. 1

It is also apparent that as the cylinders 5, 7 and 8 are geared together they always rotate together and the gear ratio is such that the cylinder 7 has half the angular velocity of theV other two cylinders and the pins 80 and 81 pass the heads 79 twice in each revolution of the cylinder 7 and once for each revolution of the cylinders 5 and 8. In Figure 12 the pins 80 and 81 are shown in dotted lines. Assuming that the direction of movementof the pins is as indicated by the arrows and assuming that the link 64 exerts an upward ull on the lever 71, the spring rod 75 is shi ted to compress its spring and the lever 71 is brought to the position shown in Figure 12 with the pin 78 placed so as to have its head 79 in the path of the pins 80. Nothing can happen after this to the pins until one of them strikes the head 79, and as soon as this occurs, such a pin is driven in- Wardly, as indicated in Figure 13. The pins 80 and 81 in each set are connected by a seesaw lever 84 pivoted at 85 in the boss 82 and this lever 84 has a loose pivotal connection with the pins at each end so as not to interfere with their rectilinear movement. Assumin the pins 80 to be placed inwardly, as above lndicated, it is apparent that the pins 81 will project from the boss, as shown in Figure 13, and then as the revolution of the boss continues, a pin 81 will strike the outside of a cam 86 fixed to a segmental gear 87 which is pivoted at 88 on the plate 73, as shown, and this plate is given an enlarged slot through which this cam 86 projects and in which it moves. As long as these pins 81 strike the outside of this cam 86, the segmental gear 87 remains in the position shown in Figure 12. Thereafter, its lever mechanism functions when the pintle 66 is shifted from the center of the shaft 27 and then the link 64 receives a downward thrust and then acting with the compression rod 75 the lever 77 is shifted so that the pin 78 with its head 79 is in the path of the pins 81 and immediately thereafter these pins 81 are thrust in and the pins 80 are thrust out. When the pins 80, which have been thrust out reach the inside of the cam 86, the first one so reaching will shift this cam to the left in Figure 12 and thereby shift the gear 87. rlhe shifting ofthe gea-r 87 causes the segmental pinion 89 of the cam 90 to shift, these two parts being held in fixed relation although adjustably mounted, one with regard to the other, through a slot and bolt connection 91, as indicated. The cam 90 and segmental pinion 89 turn on a stud shaft 92 fixed in the plate 73 and are then turned, as lindicated by the arrow, so that the recess 93 of the cam 90 permits a pintle 94 on a lever 95 to swing to the' right in an anti-clockwise direction and thereby the lever 95, which is fulcrumed at 96, permits the shifting of a second lever 97 in the same direction which occurs because of a means described below. These two levers 95 and 97 (see Figure 1) are both pivoted on the stud 96 and are connected by a spring 98, as indicated, andpthis shifting of the lever 97 shifts the link 99 which is pivoted thereto at its' upper end and at the other end this link 99 is pivotally connected to a lever 100 which corresponds to the lever 101 which is engaged by the projection of the lever 61. `When the cam 90 has an anti-clockwise movement the link 99 is pulled to the right.

llt is apparent from what has been said that the first shifting will occur through the lever 101 and thereafter when the pin mechanism 8081 has functioned, the lever 100 will be shifted and on return of the operation of the apparatus to normal, as will appear below, the lever 101 is shifted first and thereafter after another functioning of the pin mechanism 80-81, the lever 100 will be shifted. Thisl is because it is essential that when the machine operates automatically and the it and so on through all the couples, each onegoing out of operation when the last sheet passes through it and when again a new sheet starts through and the apparatus is restored to normal the first couple should go into operation and thereafter the succeeding couples in time to be properly functioning when the sheet passes through them. rlhe timing of the operation of the couples, as above set forth, provides for just this. When more than two printing couples are employed, the relay mechanism for the third couple is actuated from the lever 95 and in a similar manner, subsequent couples are actuated.

The cylinder shifting mechanism The cylinder shifting mechanism which is timed to function, as above set forth, will now be described, and as the apparatus is almost identical for each couple, one description will answer for all with a few special descriptions incidental to particular parts.

As above set forth, the cylinder 5 has a shaft 27 and a cam 68 and on the rear side of the cam 68 is another cam shown in dotted lines in Figures 1 and 3. It is necessary for the cam 68 to have two faces, one for the lever 59 and one for a lever which will be set forth below. The impression cylinder 8 has a shaft 102 and this has a cam 103 fixed thereon which is identical with the inner part of the cam 68. Both of these cams engage suitable pintles on bent levers 104 from which power is derived for shifting the cylinders. These levers are fulcrumed on studs 105 which are fixed to the frame 14 of the machine andthe lower ends of these levers are pivotally connected to links 106 which in turn are pivotally connected to cranks 107 pivotally connected to rocking levers 108 which are pivoted at 109 to the frame 14 of the machine.

1t is clear that as the bent levers 104 are continually rocked by their respective cams, a corresponding motion is imparted to the see-saw levers 108 so that the links 110 and 111 which rise at the oposite ends of these arms or levers 108 continually rise and fall, one rising while the other is falling. Normally these links 110 and 111 are kept in inoperative positions by sprin pressed rods 112 and 113 which function in t e usual manner and extend from brackets 114 fixed to the frame 14 of the machine. The upper ends of these links 110 and 111, when viewed as shown in Figure 1, at the second couple, arel swung to the right where they normally remain, but as will appear below, these upper ends may be swung towards the left so as to have an operative connection with the cylinder shifting mechanism, as shown at the first couple as will appear below. For each couple there are two pivots 115 and 116 which come from the frame 14 of the machine and run laterally therefrom. The pivot 115 carries a manually controlled cam lever which will be described below. Each pin 116 carries a number of levers. The lever for the second and following printing couples have been referred to above as lever 100. The lever for the first couple is different in detail and is designated by the character 101. Both levers have a tan or cam extension 118 adapted to be engaged by the manually controlled cam lever above mentioned. The lever 101 has another extension 119 adapted to be engaged by another manually controlled mechanism mentioned below. This lever 101 has a portion 120 which is adapted to be engaged by the projection 65 of the lever 61 so as to shift the lever 101 in an anti-clockwise direction when the lever 61 has a clockwise movement about its pivot 55 which is imparted, as described above. A correspondin movement is given to the lever 100 throug the link 99 which is pivotally connected to this lever, as described above. Power is transmitted in either case so as to give the lever 100 or the lever 101 an anti-clockwise movement and when this occurs the spring rod 121 which is pivotally connected to the tops of each of these levers imparts a similar movement to the rod 110 through a suitable loose pivot 122 and this movement is suiiciently strong to overf come the tension of the spring rod 112 and thereby shift the rod 110 so that its left shoulder 123 is under the pin 124 of the lever 125 that is fixed to a shaft 126 and turns with it so as to operate its toggle 127 which is at each end, as shown in Figure 18. Immediately after getting under the pin 124 the shoulder 123 must raise the same because of the oscillation of the lever 108, as indicated for the lirst couple in Figure 1 wherein the raising has been shown as completed.

This raising of the rod 110 is accompanied by a lowering of the corresponding rod 111, as is obvious. The downward movement of the lever 125 gives a thrust to the spring rod 128 pivotally connected thereto and this thrust is imparted to a sleeve 129 through which this rod passes and against which its spring impinges, whereby a lever 130 which is pivoted on the stud 116 close to the lever 101 is shifted and this lever, at its upper end,

, carries a link 131 which is pivotally connected thereto and has a pin and slot connection with the rod 111 so as to throw the upper end of the same to the left, as indicated in Figure 1. This rod 111 has a shoulder 132 corresponding to the shoulder 123 which takes under a pin 133 in a lever 134 oscillating on a shaft 135 corresponding to the shaft 126 and provided with a toggle 136 at each end precisely similar to the toggle 127.

The toggle 127 is connected to a crank 137 and the toggle 136 is connected to a crank 138. These cranks run to eccentric shafts (see Figures 19, 20 and 21) 139 which turn in suitable bearings 140 set in the frame 14 of the machine and the shafts 139 are provided with integral eccentrics 141 working in suitable slides 142., in the conventional manner, and these slides engage projections 143 extending from the bearings 144. In Figures 19 and 20 are shown the bearings for the plate cylinders 11 which slide between the vertical' guides 145 which are vertically disposed and the shaft of a cylinder 11 is shown'in Figure 19 and designated 146. The bearing 144 carries the lower extension 143 and this is mounted on a spring cap 147 through a screw connection 148 and the cap rests on a suitable coil spring 149 carried in a suitable recess 150 of the machine frame 14. When the eccentric 141 is given an anti-clockwise movement it is obvious that the shaft 146 and bearing 144 are elevated in each instance and when the shaft 141 is given a clockwise movement the bearing and shaft are lowered against the tension of the spring 149 which acts as a balancing mediuln in the conventional way. When the toggle 136 .is broken the crank 138 is given an anti-clockwise movement and so an elevating influence is exerted on the bearing 144, as is obvious, so that in cooperation with the spring 150 there is a lifting effect. When the toggle is straightened there is a corresponding clockwise movement whichl brings the cylinder 11 and its connected parts into the lower position. In a similar manner, the breaking of the toggle 127 will throw the eccentric 141 in an anti-clockwise direction and this will cause the corresponding bearing block 144 for the shaft 151 to move to the left when viewed as shown in Figure i 2, and a corresponding clockwise movement causes a shifting to the right. This shifting is against the tension of a coil spring 152 let into a suitable recess and adjusted by means of a screw plug 153. As a blanket cylinder is carried by this shaft 151, it is obvious that this blanket cylinder is shifted from the impression. cylinder 5, in the manner described above, through the action of the toggle 127 with which it is connected.

From the foregoing, it is apparent that the toggle 127 is first broken through the elevating of the rodv 110 and thereafter the toggle 136 is broken throu h the elevation of the rod 111. Thereafter t ese toggles will remain broken because both the rods 110 and 111 have their tops shifted to the left and they move the pins out of their respective shoulders to the upper limits. When the paper is again feeding regularly so that the latch 57 disengagcs the block 58` and the projection 65 is free of the lever 101, the tension of the spring rods 112 and 113 is suiiicient to throw the rods 110 and 111 over to the right SQ that suitable manner.

to normal by making the toggle 127 and after this has been completed, the rod 111 which has meanwhile been lowered is brought against its pin 155 and elevates the same so as to straighten the toggle 136. This straightening of the toggles 127' and 136 restores the plate and blanket cylinders to proper printing relation. The operation for the first couple is exactly as above set forth. For the second couple it is the same except that instead of having the movement initiated directly from the extension of the lever 61 it is initiated indirectly through the latch relay mechanism and so is delayed according to the timing of the machine so that the second printing couple will be ready for tho rst and so on through all the couples that may be employed in the machine. It is obvious that on the plate cylinders 11 andthe blanket cylinders 6 and 9 there are places where no printing is done and the mechainsm is so geared and timed that when the` plate and blanket cylinders separate or come together, as above described, they always come together on the vacant spaces so that theI printing is liever interrupted while in process, but only between printing operations do the interruptions occur.

Any suitable mechanism may be used for separating the inkin rollers from the plate cylinders 11 and this mechanism is driven by links 156 pivotally connected to the cranks 138 or they may be operated in any other If operated by the. links 156, as shown, the connections are as follows: The link 156 is pivotally connected to a crank arm 157 which is fixed to a shaft "158 that runs transversely of the machine and iis suitably mounted in .bearings 159 fixed to the axle boxes 144 so as to rise or fall4 oscillation is limited and at its upper end it' has pivotal connection at 163 with links 164 which are pivotally connected to the ink roller brackets 165 which are pivotally connected to a pin 166 which pin is also carried by the bracket 159 so, that Whenever the link 156 is given a downward pull. the shaft 158 has a. clockwise movement and whenever this occurs the printing rollers are lifted from the plate cylinder 11 to which they are connected. They are shown resting on this plate cylinder in Figure 22 and lifted off of it in Figure 23, Whenever the link 156 has a con- '5 tion herein shown and described, a micrometer adjustment is placed in the cranks 137 and 138 as follows: Each shaft 139 has aworm gear 167 fixed thereon and this gear is engaged by a worm 168, as shown in Figw ure 21, which worm is mounted at its lower end in a crank, say the crank 138, as shown in Figure 21, and at its upper end in a bushing 169 which is also let into this crank, as indicated. The top 170 of this worm has a prismatic outline and resembles a hexagonal nut. in appearance so that by applying a Wrench it is easy to turn the worm. To fa- .cilitate holding the parts in place, one end 'of each shaft 139 is screw threaded to reg0 ceive a bolt 171 which passes through a washer at 172 which washer is made very strong and sturdy so that when the bolt 171 is screwed tight, the washer is firmly held against its crank. There are markings on this 95 washer and on this crank, as indicated at 173 so that it is possible to have an exact micrometer adjustment through the use of the worm 168 after loosening the bolt 171. Once the adjustment is had, the bolt 171 is $0 tightened so that the parts are held firmly in right relation and the adjustment when once made, is maintained. This adjustment is important because it allows the relation of the cylinders to be adjusted for vari- 85 ations in paper thickness, printing plates and it also allows the pressure to be varied at the will of the operator.

The grz'ppermecham'sm o All the grippers used on the impression and transfer cylinders are of the conventional kind with an exception to be mentioned below. It is obvious that these grippers perform the ordinary gripping function during the normal operation of the press and so with the exception noted below any suitable and conventional grippers may be employed. However, it is also obvious that no paper can be fed through the machine if the grippers on the first impression cylinder fail to work and so all that is necessary to prevent feeding, after a sheet of paper leaves the first impression cylinder, is to render the grippers lnoperative on the first impression cylinder and all that is necessary to start paper passing through the press again is to start the grippers in operation on the first impression cylinder, assuming that the press is other- Wise functioning normally.

The attachment for governing the action of the grippers on the first impression cylinder will now be described.

The impression and transfer cylinders carry the grippers 174 of the conventional 5 kind which are operated with the exception of the first impression cylinder grippers by suitable cams 175, in the conventional manner, the parts being set so that these grippers open and close as usual. As many of these grippers are employed as required and they are mountedin their respective cylinders on suitable shafts 176 in the conventional way. The structure with regard to the cylinder 5 is the same as above set forth except that the cams are changed for a means which may be controlled` which will provide for the opening and the closing of the grippers. This means consists of a crank 177 fixed to the crank shaft 176 which crank is pressed in one direction by the spring controlled tension rod 178 which has one end pivotally connected to the crank 177 and its other end pass ing through a guide 17 9 which is fixed to the cylinder 5.

The spring rod is actuated with and against an enclosing coil spring 180 which has one end resting against the 'pivot bearing 179 and the other .against a collar 181. It is obvious from the foregoing that the crank 177 and the spring rod 178 whentaken in connection with their pivots form a. toggle and that when the crank is in one position it will remain so under the influence of the rod 178 and when in the other position it will remain so under this rod and as the grippers are connected to this crank through the shaft 176 it is equally obvious that the grippers will remain open or closed according to the means used to shift the crank to one position or the other. This means is found in spring pressed bolts mounted in or from the frame 14 of the machine. The opening bolt is designated 182 and the closing bolt 183. These bolts normally projectv in the path of movement of the crank 177 which is provided with two pin receiving grooves 184 and 185, the groove 184 being shaped so as to receive the opening pin 182 and the groove 185, in a corresponding manner, receives the closing pin 183. The means for withdrawing these pins against the tension of their respective springs 186 will now be described, it being assumed that thesesprings are mounted, as shown in Figure 10, or in substantially this manner. Each bol 182 and 183 has a head 187 which is engaged by a pin 188 on a bell cranklever 189. The

lower bell crank lever 189 is fulcrumed at 190 on a pin extending from a bracket 191 and the upper bell crank 189 is similarly pivoted on a suitable pin 192 extending from a suitable bracket 193. The free arms 194 of the bell crank levers 189 are engaged by a suitably bent link 195 which is pivotally connected at 196 to the arm 62 of the lever 61, above described. A suitable guide 197 directs the lower end of the link 195 so that it always and in a suitable manner cooperates with the bell crank arm 194 to which it is connected. When 183 remain in their projecting positions shown in Figure 10. When the link 195 is lowered the arms 194 are depressed and then the bell crank levers 189 function so as to Withdraw both the opening pin 182 and the closing pin 183 and these pins then remain in the withdrawn position until the link 195 is raised through a subsequent action of the controlling mechanism which is exerted through the pivot 196. A pivoted arm 198 is pivoted at one end from the frame 1 4 of the machine and at the other to the link 195 and this functions so as to cause the link 195 to rise and fall with a substantially parallel movement. i

4 From the foregoing it is apparent that when the tripping mechanism above described is actuated so as to shift the lever 61 vits arm 62 is depressed at its extremeend and thereby lowers the link 195 and causes the pins 182 and 183 to be withdrawn and this withdrawing is timed to take placeafter the release of a sheet and beforeal new one can be gripped and also when the pins ,182 and 183 are restored to the normal, projecting position, they are restored so that the first pin to be engaged by the crank 177 is the pin 183 so that these grippers may properly secure any sheet of paper fed to the apparatus. It is also apparent that these pins will be restored upon the elevating of the arm 62 of the lever 61 and this occurs through the upward thrust of the link v64 under the influence of the spring rod 75.

The tripping mechanism The tripping mechanism is found in three forms in this machine, one for 'stopping the -machine successively and automatically, 'y as l above described, when controlled by the paper feed, one'for tripping either printingelement without disturbing the operation of the other or others and one for throwing the entire machine out of operation. The two latter will now be described, beginning with the former.

The frame 14 of the machine, adjacent each printing couple, carries a horizontally disposed lever 199 pivoted at 200 from the frame y14. This lever has a handle 201 by which it may be manipulated and this handle passes over` a segment l202 which is fixed to the frame 14 of the machine and is adapted to hold its lever 199 in its intermediate position. As will now appear, each lever is connected so as to throw the plate and blanket cylinders of its couple out of printin oper,- a-tion into a mid position, so that t e machine ma-y be used without operating the couple, or into the upper position of the handle 201 which is the inoperative position in which the functioning of the apparatus is not distributed and into the position where the handle 201 is lowest and where the plate and blanket cylinders are brought together while the blanketcylinder is separated from the impression cylinder so that the blanket cylinder may get a preparatory coat of ink and be ready to function. When the machine is started and after all the couples are revolving and while the blanket cylinders are off their respective impression cylinders, the lever 199 is shifted so that lthe handle 201 is depressed to the lowest position for the purpose just described above and as soon as the blanket cylinder is properly prepared to function'this lever is put with the handle 201 in the most elevated lposition and there after the apparatus passes from manual to automatic control.

The end of each lever 199 which is remote from the handle 201 is connected to a link 203 and these links are connected to their respective levers 204 mounted on the studs 115. Where there are more than two printing couples the subsequent ones are identical with the second printing couple herein described, as is obvious. Thel lever 204 had two cam lobes, one 205 which functions with the projection 118 and one 206 which functions with a projection 207 on the lever 130 so as to force this lever'to have a clockwise movement. The cams are so timed and placed that when the link 203 is elevated first the lobe 205 becomes active to depress the cam 118 and throw the lever 100 `or 101' and thereby shift the rod 110 to the left, as above speciied, so as to cause its shoulder 123 -to elevate the pin 124 and thereby withdraw a blanket cylinder from operation and thereafter the plate cylinder and inking rollers are withdrawn, as described above. If the upward movement of the 'rod 203 be further continued, as it is when the handle 201 is put in its lowest position, the cam lobe 206 comes into operation and forces the end 207 of the lever 130 into a clockwise movement which will cause the link 131 to be withdrawn to the right and thereby permit its rod 111 to have its upper end shifted to the right by its tension rod 113 thereby 'causing the pin 155 to be elevated with a making of the toggle 136 and this occurs while the pin 124 is elevated with a broken toggle 127 with the result that the blanket cylinder receives ink from the plate. cylinder in the manner described above and will'continue to receive it as long as the handle 201 is depressed. Once the inking has been completed the handle 201 is raised to its topmost position and thereafter the blanket cylinder is ready'to function and does function to print as soon as paper is fed into the machine in the manner described above.'

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