US1293855A - Combination two-color and perfector printing-press. - Google Patents

Description

R. MIEHLE. coNilfN/ITION/wqgcoLoR AND PERFECTON PRINTING miss.

kM'NLlc/ATIQN"FILED FEB. 21. 1911.

Patented Feb.

WHEHLE. COMBNATiON WO-COLH AND PERFECOR FHBNTING PRESS.

yAPPLICATION FILED FEB'. 2l. X917.

Patented Feb.11,199.

3 SHEETS-SHED 2.

R. NHEHLE. coMBxNATioN we COLoR AND PERFECTOH PRINTING PRESS.

APPLXCATION FILED FEB. 21.1917.

Patented Feb. 11, 1919.

ST PATENT OIdlliIClilaI nonnn'r MIEHLE, or eHIcAGo, ILLINOIS;

COMBINATION' TWO-COLOR AND PERFECTOR PRINTING-PRESS.

Specification of Letters Patent.

Patented Feb. 11, 1919.

.Application led February 21, 1917. Serial No. 150,009.

i To ali whom t may concern:

Be it known that I, ROBERT MIEHLEye citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Combination Two- Color and Perfector Printing-Presses, of

.whichthe following is a full, clear, concise,

and exact description.

My invention relates to rotary printing presses andv has a number of objects and advantages in view. One feature of my invention resides in the employment of independent gears that are connected with the cylinders of a printing couple whereby these cylinders are permitted to preserve their proper printing relation substantially uninfluenced by the gearing which is employed 'to drive them and without slippage of either cylinder with reference to the other that would cause rubbing action upon the form.

or printing surface upon the printing cylinder. l

In practising this feature of my invention the' axes of rotation of the cylinders of the printing couple are preferably normally fixed, the printing cylinder having a printing anda non-printing portion each such portion corresponding to the impression portion of the impression cylinder, and

gearing for rotating the impression cylinder in unison with the printing cylinder. This gearing includesthe independent gears that are connected with the cylinders of the couple.

Anotherl feature resides in providing gearing for driving the cylinders of a twocolor or perfecting press which includes independent gears] that are connected with the respective cylinders whereby these. cylinders are permitted to preserve theirV proper printing relation substantially umni'luenced.

y the gearing which is employed to drive them and without slippage of any cylinder with reference to its related cylinders that would cause smutting or improper register upon the printed sheets, or wear on the plates. A

Other features reside in the employment of independent means for driving the inking mechanism; the tripping'l mechanism, and the feed board lmoving mechanism which operates to periodically move the feed-board away from its `impression cylinder/to allow the printed surfaces of the sheets to pass beneath the guide tongues upon the feed-- board in a manner to prevent the tongues from marring the printing whereby the actuation of these mechanisms cannot interfere with the .maintenance of the proper printing and registering relation of the cylinders.

Another feature resides in the employ-l ment and arrangement of gearing of the above described character in a two-couple press and in providing means wherebyone couple of the press may be adjusted for two color printing, t. e., printing twice upon the same side of the sheet, orl for perfectin printing, t. e., printing once on each side o the sheet, the cylinders being driven by independent gearing and the inlring mechanisms, the tripping mechanism, and the feed lation, and other features reside in the arrangement and construction of the various elements whereby the same are compactly correlated without interfering with their proper functions or rendering the press inconvenient for the operator, the arrangev ment and provision of means for converting the two-couple press being such that the adjustments may be made quickly and easily.

The press of my invention is also desirably equipped with registering mechanism upon the cylinders of ,each printing couple, cach such cylinder carrying an element of such mechanism, the construction of the same being' such that the adjus ment of the same may be quickly .-/niade with precision. t(

I will explain my invention moie fully by reference 'fo the accompanying drawings showing the preferred embodiment thereof and in which Figure l is afviewg taken from the main gear side of the pressyparts being broken away in order that characteristics of construction may be more fully revealed,- other parts of the press which are well is a plan view, partially in section, illustrating the preferre'd gearing gear 13 arrangement; Fig. 3 illustrates one relationship of the form cylinders, impression cylinders, and transfer cylinders, this arrangement being employed when the press is adjusted to become a perfector press by which both sides of a sheet are printed upon, Figs. 1 and 2 illustrating the gearin arrangement that is employed in the a ]ust ment illustrated by Fig. 3,; Fig. 4 illustrates another relationship of the form cylinders, impression cylinders, and transfer cylinders, this arrangement being employed when the press is adjusted to be a two color press printing on Fig. 5 is a view partiallyin section and partially in end elevation of tripping mechanism that may be employed.

Like parts are indicated by similar characters of reference throughout the different figures. g

The invention will first be described in connection with the arrangement as it is illustrated in Figs. 1, 2 and 3 that show a perfector press, one by which each sheet has both of its sides printed upon. main driv-` ing pinion shaft 1 carries a pinion 2 which is in mesh with the main driving spur gear wheel 3 which is fixed with 'respect to the stubshaft 31. This stub shaft is journaled in the frame of the machine to have a fixed axis of rotation for the gear wheel 3, that turns with the stub shaft. The spur gear 3 vis in mesh with spur gear 4 whose hub 5 is mounted to turn upon a sleeve 6 fixed to the frame of the machine, this sleeve confining gear 4 to a fixed axis of rotation with respect to the frame of the machine. A second spur gear 7 (Fig. 2) is permanently fixed with respect to gear 4 by any 'suitable means, such for example as the bolts 8. Gear 7 is in mesh with a gear 9 whose hub is fixedly secured to the shaft 10 of the first impression cylinder 11. A spur ear 1.2 is also brought into fixed relation with the spur gear 4 by means of the bolts 8. This gear 12 is in nosh with a spur which in turn is in mesh with a spur gear 14 whose hub is in fixed connection with the shaft 15 of the second impression cylinl der 16. The first printing or form orplate l fixedly cylinder 17 is fixed upon the shaft-18 that carries a spur gear 19 which is in mesh With a spur gear 2Q loose 'upon the hub of thegear 9. Gear 20 is in mesh with the broad faced gear 7. The second printing or form or plate cylinder 21 is fixed upon a shaft 22 that fixedly carries a spur gear 241 which is in mesh with a spur gear 24 that is loosely mounted upon the hub of gea-r 14 and which meshes 'with gear 23 affixed tothe gear 13. Gears 23 and 13 are, in Figs. 1 and 3, shown as being tied together by means of bolts 25 to form a composite gear, an addithe same side of each sheet; and f the spur gear 30 which meshes with the gear 13.

As viewed in Fig. 3. the first impression cylinder 11 turns in acounter-clockwise direction while the first printing cylinder 17 associated therewith turns in a clockwise direction. The second impression cylinder 16 turns in a clockwise direction while the second printing cylinder 21 associated therewith turns in a counter-clockwise direction.

The first and second printing cylinders 17 and 21 are rotated in opposite directions (note the arrows in full lines on the printing cylinders in Fig. 3) as they could be driven by meshing gears carried by these printing cylinders but which gears are preferably not employed. Gearing that is desirably employed for effecting such rotation of the printing c linders and their associate impression cy inders is included in distinct trains driven by the common gear 4 coupled and turning with gears 7 and 12 between which the 'ear 4 is disposed. Gear 7 is a broad facedg gear which is in mesh with the two :independent gears 9 and 20, gear 9 being fixed upon the shaft 10 of the first impression cylinder and gear 20 being loosely mounted on the hub of gear 9 around the shaft 10 and meshing with gear 19 fixed on shaft 18 of the first printing cylinder. Thus does gear 4 independently drive the inde endent gears 9 and 20 that .respectively e ect the rotation of the first impression cylinder 11 and the first printin cylinder 17, these independent gears being upon one side of the gear 4. The independent gears 14 and 24 that respectively drive the second im ression cylinder 16 and second printing cy inder 21 are upon the other side of` gear 4, the gear 14 being fixed upon the shaft 15 of the second impression cylinder and gear 24 being loosely mounted on the hub of gear 14 around the shaft 15 and meshing with gear 241L fixed on shaft 22 of the second printing cylinder, gear 241 being mounted upon shaft 22 as gear 19 is mounted upon shaft 18, these gears 14 and 24 being in planes distinct from the gears upon the first side of gear 4. While gear 7 is fixed with respect to gear 4 upon one side thereof and directly but independently drives the independent gears 9 and 20, the gear 12 fixed with respect to and upon the other side of thc gear 4 independently drives the independent gears 14 and 24 through the intermediation of the composite gear 13, 23 which is mountcd to turn upon the shaft 27, by which indirect drive of thp mlpmndent gears 14 and lthe cylinder 11 from the feed board 31.

Lacasse 24 the second impression cylinder 16 is rotated oppositely to the first impression cylinder l1 and the second printing cylinder' 21 is rotated oppositely to the first printing cylinder 17. By my indirect driving gearing above described am enabled to obtain a freer rolling peripheral contact of the cyl inders of each printing couple which is as free as possible from that infiuence of the gearing Which tends to dist-urb the desired printing relation of the members of each printing cylinder and I also minimize any disturbing influences of the members of either printing couple upon the printing relation between the members of (the other printing couple.

In accordance with my invention, the spur gear fixed upon each cylinder is not in mesh with the spur gear fixed upon any other cylinder either of. its own printing couple or of the other printing couple since the central source of power (the gear 4) is common to the independent gears 9 and 20 which respectively pertain to the first iinpression cylinder 11`aiid the first printing cylinder 17 While this same central source of power (the gear 4) is common to the independent gears 14 and 24 Which respectively pertain to the second impression cylinder 16 and the second printing cylinder 21. By means of my gearing the distance between the shafts 1S `and 2Q is not determined by the gearing that drives the printing cylinders upon these shafts, on which account l am enabled relatively to locate these shafts and the printing cylinders thereupon as desired, in establishin lation between these printing cylin ers and impression cylinders complemental thereto and without meshing the impression cylinder gear with its associate printing cylinder gear.

The printing or form cylinders 17 and 21 4are respectively individual to the impression cylinders l1 and 16. The sheets to be printed upon are fed to the first impresslipn l ie grippers 32 upon the first impression cylin der 11 takes the sheet, numbered 33, from the feed board and carry it around through the line 34 joining the centers of the shafts l() and 15 to the line 34' joining the centers of the shafts 10 and 18 when the first print ing operation is initiated, the forni upon the first printing cylinder then having printing relation With the first side of the sheet 33 upon the cylinder 11, it being understood that each printing cylinder has a printirg portion or forni that corresponds to the impression portion of the corresponding impression cylinder in the printing opj eration and a blank portion which corresponds to such impression portion in the non-jgirinting operation. The first printing operation upon sheet 33 thus initiated-com the iel the time tiie'impressionl cylindenll received the siieet thereupon) until the forni 35 upon the first lprinting cylinder compi `tes the printing upon the first side of the s eet 33. During the second revolution of the first impression cylinder 11 the' grippers 36 upon the second impression cylinder 16 take the sheet 33 being printed upon by the form -35 of the first printing cylinder 17, the grip? pers 3:2 releasing the sheet and the grippers 36 taking the sheet when these grippers upon these cylinders 11 and 16 are adjacent at the line 34 during the second revolution of the first impression cylinder 11.

)Vlieii the grippers 36 have sufiiciently passed the line 37 joining the centers of the shafts 15 and 22, the second printing operation upon sheet 33 commences (this second operation being upon the other or second side of the sheet), the form 38 upon the scoond printing cylinder 2l then having print-- ing rela-tion with vthe second sideof the sheet 33 then upon the second'iinpression cylinder" 16. In Fig. 3, the second impression cylin-l der 16 and the second printing cylinder 21 are shown as coperating to perform the second printing operation upon a sheet 39 that immediately preceded sheet 33. The second printing operation initiated upon sheet 33 continues during the first revolution of the second impression cylinder 16 (beginl ning with the time the cylinder tookthe sheet) until the forni 33 upon the second printing ,cylinder 21 completes the printing upon the second side of the sheet in a like manner as the second printing operation Was performed upon the sheet 39 aibove described. During the first revolution of the second impression cylinder 16 the gripper-s 40 uponthe transfer cylinder 26 take the sheet 33 being printed upon by the form 38 of the second printing cylinder 21, the grippers 36 releasing the sheet and the grippeis 40 taking the sheet When these grippers upon these cylinders 16 and 26 are adjacent during the printing revolution of the cylinder 16 and are at the line 42 joining the centers of shafts 15 and 27 (Fig. 3). TWhen the grippcrs of the transfer cylinder 26 reach the line 42 joining the centers of shafts 27 and 29, and the grippers 43 upon transfer cylinder 28 also reach this line adjacent the grippers l40 and take the sheet therefrom' (such as the :form for cylinder 17 and form 38 for cylinder 21) corresponding to the impression portion of the corresponding impression cylinder and anon-printing portion, the part unoccupied by a form, that also corresponds to the impression portion of the corresponding impression cylinder. By this arrangement the axes of rotation of the cylinders of each printing couple may be 'normally fixed.

I will now describe the press of my invention as itis adjusted and arranged to ena'ble it to be used in performing two printing operations upon the same side of a sheet yand in diiferent colors if desired, reference being had to Figs. 1, 2 and 3 and especially to Fig. 4 which clearly illustrates the adjustment and arrangement of the press for two color printing on one side of a sheet.

In order that the press as it is exhibited in Fig. 3 may serve the new purpose, the cylinder 16. is arranged to be the sheet transfer cylinder and cylinder 26 is arranged to be an impression cylinder, to which end the bands 45 that surround the cylinder 26 and which. are provided with sharp projections or teeth for engaging and 'supporting the paper, are removed and may be transferred to the cylinder 16 while the tympan packing 46 upon the cylinder 16 is removed and may be. transferred to the cylinder 26, both cylinders 16 and 26 being provided with mecha.- nism that readily permit the exchange of these elements 45 and 46. The cylinder 16 is also raised out of printing relation w-ith the second printing cylinder 21 and the cylinder 26 is lowered into printing relation with this printing cylinder. For this purpose I desirably pro' V1de the illustrated adjusting mechanism for the boxes 47 of the shafts of these cylinders and this Iadjusting mechanism is also of service in determining the relativepositions of the cylinders whether or not it is employed in converting the press. Each cylinder has a box 47 at each end of its shaft that is movable vertically inl guideways 48 formed in the press side frames but which boxes are normally held from movement by means of the lower adjusting screws 49 and the upper adjusting screws 50, these screws being in threaded engagement with the press frame and having butt engagement with the bottom and top faces of the boxes positioned therebetween. Each of the lower screws 49 is limited in its downward movement by a set screw stop 51 carried by the frame of the press and the abutment screws 50 pertaining to cylinders 16 and 26 are limited in their upward movement by the ixed stops 52 secured upon the frame of'the press. The stops are so positioned that they dene the positions of their cylinders when such cylinders are to be used as transfer cylinders, while the adjustable stops 51 dene the positions of the cylinders in their printing relation. When the cylinders 16 and 26 are adjusted to the positions illuitrated in Fig. 4 the screws50 pertaining to he cylinder 16 are unscrewed until they engage their stops 52 whereafter the complemental screws 49 are screwed upwardly to bring the boxes 47 of ylinder 16 into engagement with the lower ends of the'adjusted screws 50. In raising the cylinder 16 the Unthreaded holes 53 in gears 24, 54 and 14 come into register with the threaded openings 55 in the gear 12, the bore of the sleeve 6 being cored out to afford space in which shaft 15 of the cylinder 16 may be moved to bring it into centra] alinemcnt with the exterior cylindrical bearing surface of the sleeve 6. rI he bolts 25 are now removed from their positions illustrated in Fig. 3 and are passed through the openings 53 and are screwed into the threaded opening 55. The gears 24, 54, 14, 12, 4 and now become a common unitary gear. After the bolts 25 are removed the washer 56 upon the shaft 27 and the gear 23v are removed. The screws 49 of cylinder 26 are now lowered until the lower ends of these screws engage the adjustable stops 51 whereafter the screws 50 of cylinder 2.6 are screwed down into engagement with the top side of the lowered boxes 47 of this cylinder'26. In adjusting the screws it is proper to have two attendants, one on each side of the press, for operating the cylinder adjusting screws of each cylinder at the same time. In the new adjustment the impression and transfer cylinde- rs 11, 16, 26 and 28 may rotate in the same direction in which these cylinders respectively rotate in the press as it isillustrated in Fig. 3. The direction of rota/tion of the printing cylinder 21, however, in the arrangement shown in Fig. 4 should be'opposite' tothe rotation of this cylinder in the arrangement of Fig. 3, a result which is secured by replacing the gear23 upon the shaft 27 and meshing it with the gear 24 after 'the cylinder 21 has been turned tobring it into its proper printing relation with the impression cylinder 26, the movement of the cylinder 16 out o'f impression relation with the cylinder 21 having unmeshed said gear 24 from gea`r-241 and the movement of cylinder 26 into impression relation with cylinder 21 having brought said gear 23` in meshing relation with said gear 241 when said gear 23 .is on the shaft of said cylinf chine. y The cam groove 1in cam d engages out of printing position by means of any suitable tripping. mechanism provided for each printing cylinder, such as that illustrated inFig. 4. Each printing cylinder is l normally dissociated from its tripping mechanism but is coupled therewith by a separate mechanism or the press attendant who ordinarily has one foot key for each print- I ing cylinder. The tripping mechanism employed may be of the general nature illustrated in my Patents 689,505, dated December 24, 1901, and 1,081,420, dated December 16, 1913 with necessary changes.

The foot key not shown is connected with a connecting link 57 that is connected with a rocker arm 571 that in turn is fixed upon .a rod 572 and on which rod there is fixed a cam arm 58 carrying a trip cam portion -5^8 to, move the upper end of the cam arm downwardly to lower the hook 59 into vengagement with the tooth c, the parts, k1 of part c- 59and c constituting elements of -a coupler that connects the corresponding printing cylinder with its tripping` cam d.

The tripping cam Z belonging to` the first printing cylinder is rotated by the gear e upon which the cam is fixedly located, the

ear 'e in turn being rotated by the pinion 'upon the lstud g fixed to the frame, the pinion f beingin fixed connection with the Ispur' gear 'wheel h that is in mesh with the pinion 21 carried upon the other end of the shaft'Z opposite that which carries the pin- 1on` 2 and which latter pinion meshes with v gear'fwheel 3, this shaft passing through the machine from side to side. The tripping mechanisms for both printing cylinders are ofy similar construction, generally speaking, and similar parts 'are given similar characters of reference. The gear e of the second prlnting cylinder tripping mechanism is vdriven by the intermediate gear e1 that is driven by gear e, the intermediate gear e1 being mounted to turn upoh a fixed stud that is carried by the frame of the maa cam roller i upon an arm loose on shaft Z th'at passes from side to s1de of thema-v chine and to whichshaft the tooth 'c is fixed.

The roller z' is mountedlu on the stud '1 upon the inner end of which the hook 59 is' mounted to swing. Shaft Zl carries two leccentrics Z1' upon each of which a sliding box member Z2 rests, each sliding box member supporting the extension Zs of the corof the arm 58.

responding printing cylinder shaft box Z, there being'` thus one eccentric Z1 in supporting relation to each printing cylinder shaft box Z4. The arc a b of the cam groove is eccentric with the Shaft d2 0f thei cam. The cam roller z' is not bodily moved while engaging this part of the cam groove whereby the arm c is then at rest. The hook 59 carries a cam roller m that may bear upon the operating trippin cam portion 581 The arm carries stop pin o and hook 59 has a lug p, the elements o and p preventing the hook 59 from' separating any furtherfrom the tooth c than illustrated.

Each pair o f eccentrics Z1 upon the same shaft Z has the position illustrated when the printing cylinder corresponding thereto is in its normal operating position, he centers of .these eccentrics being norma y positioned slig'htly to the left of the 4vertical line passing through the centers of the shaft Z and the shaft of thev corresponding printing cylinder and being between this line and the stationary stop pin g. As tooth c is in wise .rotation to hold the corresponding prmtmg-cyllnder in working position. The

stop pin g illustrated is upon one s ide of the press. There may be a similar stop pin on the other side of the press that is to be engaged by an arm fixed upon the other end of the shaft Z and positioned similarly to the tooth c to take part in preventing the turning of the shaft- Zand the eccentrics thereon. When the shaft Zv is turned clockwise the eccentrics Z1, lbeing fixed upon the shaft, are also turned clockwise so that the corresponding printing cylinder is` lowered to non-printing position. This rotation of the shaft Z and the eccentrics Z1 cannot occur until after the part 591 of. hook 59 is brought into position to enable it to be engaged with the lower side of the tooth c, h /following the depression of the foot key by edge of the printing form travels through the arc a1 1 and during the-time the segment c Z) of the cam slot d1 is passing by the 125 roller z'. When the cam roller t is in the portion of the cam groove d1 between the side a of the arc a b and the shaft d2 the cam roller c' is drawn toward the sha d2 to the position shown at the left of Fig. 4i 150 in connection with the second printing cylinder. The part 591 of the hook 59 (assuming that the attendant has dropped the arm 58 to permit the hook 59 to engage the tooth c) pulls the tooth c in a clockwise direction whereby the eccentrics Z1 are turned in a similar direction to permit the corresponding printing cylinder to be lowered by its ownweight. When the roller z' is in the portion of the cam groove d1 between the shaft d2 and the side b of the arc a b the motion of the arm k is reversed whereupon the extension k1. of the arm k pushes upon the lug c1 carried by the tooth c to turn the tooth c and the eccentrics l1 fixedwith respect thereto counter clockwise back to the normal position illustrated in Fig. 4. In coming back to this position the eccentrics Z1 raise the correspondin printing cylinder to working position. t is understood that the roller m (upon the hook 59) supports the hook while this roller m rides over the tripping cam portion 581 when the arm 58 that carries this cam 581 is in the normal raised position illustrated and while the corresponding printing cylinder is in its normal. operating position. The arm 58 may be lowered at any time but should this arm be lowered while the roller z' is not in the areal portion a b of the cam slot (Z1, the swinging end of the hook will ride uponv the crown of thetooth c (see the lower left hand corner of Fig. 4) until the roller z' is received in the areal lportion a b of the cam groove d1. In the arrange ment illustrated in Fig. 4 the cam 'd is adjusted to constitute the press a 'two color press, thebolt cl3 carried by the gear e of the second printing cylinder tripping mech- .anism being within the opening in the vadjacent cam d, this bolt adjustment d pertainingonly to the tripping cam mechanism of, thesecond printing cylinder. When the A press isrto4 beadjusted to be a perfector press 4the 'adjacent ca m d is shifted to the position shown by dot and dash lines (Fig. 4) to bring the `bolt hole d therein into register with the b olt hole d in said gear e, the bolt d*1 then being inserted in the registering holes d d5 to maintain the cam d in this new position with reference to said gear e. No such adjustment as this is required for the first printing cylinder tripping mechanism on which account the cam d and gear e pertaining to this tripping mechanism may be integrally formed. j

Still referring particularly to Fig. 4, the sheets be printed upon are fed to the first impression cylinder 11 from the feed board 3 1. The grippers 32 upon the first impression cylinder 11 take ,the sheet, numbered 60, from the feed board and carry it around through the line 34 joining the centers of the shaffts 10 and 15to the line 341 joining the centers of the shafts 10 and 18 when the first the first impression cylinder 11 the grippers 36 upon cylinder 16, now a transfer cylinder,l take the sheet 60 being printed upon by the form 35 of the first printing cylinder 17, the grippers 32 releasing the sheet and the grippers 36 taking the sheet when these grippers upon Athe cylinders 11 and 16 are adjacent at the line 34 during the second revolution of the first impression cylinder 11. In Fig. 4 the transfer of the sheet 60 from the cylinder 11 to thetransfer cylinder 16 will not occur until the cylinders 11 and 16 have each made another revolution from the position there shown, a sheet 61 preceding the sheet 60 being held by the grippers pers 40 have sufficiently passed the line 62 that joins the centers of shafts 27 and 22, the second printing operation upon the sheet 60 commences, this second'operation being upon the said ,ide of the sheet previously printed upon by the printing cylinder 17 since the transfer cylinder 16 causes the sheet to be taken by impression cylinder 26 with the printed or wet side outside to enable this same wet side to be rinted u n by the second printing cylin er 21. he second impression cylinder 26 and thesecond printing cylinder 21 with its form surface 38 are shown as coperating to perform the second printing operation upon a sheet 63 that immediately precedes sheet 61. The second printing operation initiated upon sheet 60 continues during the first revolution of the second impression cylinder'26 (beginning with the time this cylinder bOOk the sheet) until form 38 upon the second the sheet previously printed upon by the first printing cylinder 17. The grippers of printing cylinder 21 completes Ithe secondl printing operation Upon the same. side' of tov line 42 joining the centers of shafts 27 and 29 (Fig. 3), and the grippers 43 upon transfer cylinder 28 also reach this line adjacent the vgrippers 40 and take the sheet therefrom during the second printing operation upon theV sheet whereafter the sheet may be disposed of in either of two ways as.

downwardly is adjustably determined by means of thumb screw stops carried by the lugs 66 upon the press frame. The feed board 31 carries a rod 67 mounted to turn in brackets 68 carried by the feed board. The rod 67 carries two feed board raising fingers 69 that bear at their outer ends upon the aforesaid lu s 66. An arm 70 isxed upon that end o the rod 66 which is at the gear side of the press, this arm 67 projecting outwardly so as to connect with the upper end of the lifting bar 71. This lifting bar has butt engagement at its lower end with the stud 72 fixed upon the cam arm 7 3 that is pivoted at 74. This cam arm carries a cam roller 75 that rides upon a cam 76 fixed with respect to the gear 3. `The liftin bar 71 carries an inclined guidin finger 77 which serves to guide the lifting ar into operating relation with the stud 72 when the feed board is lowered and in position to enable this stud to engage the lifting bar when the roller 7 5 rides upon the cam 76. The effective length of the lifting bar is adjustable by making the part of the liftin bar which is engaged by the stud 72 an a ded section 711 Aof such bar which. is adjustable with relation to the stud. The adjusting means illustrated includes. an adjustingscrew 712 carried by the lug 713 upon the section of the bar which is connected with the arm 70, the lower end of this screw bein connected with the adjustable bar section 11. Screws 711 hold the section 711 in the position to which it is adjusted with reference to the stud 7 2. When the wet side of the printed sheet upon the first impression cylinder approaches the forward ends of the feed guide tongues or fingers 78, the cam 76 engages the cam roller 75 to lift the feed board, said cam roller;` turning upon the outer cam dwell 7 9 until the rear end ofthe sheet nearly reaches the front ends of the tongues 78 whereupon the cam portion 80 passes the roller 75 to allow this roller to come upon the lower cam dwell in time to position the feed board to allow the grippers 32 to take the next sheet properly. By means of the adjustable section 711 of the lifting bar 71 the height. to which the feed board is raised' is adjustably determined to suit the nature of the stock. Heavier stocks obviously require thatfthe guide tongues 78 be raised higher than in the case of lighter stoclr to afford the necessary greater clearance between the tongues and printed surface.

It will be noted that the cam 76"-80 is carried by the gear 3 which is independent, not being in mesh with the gears upon the cylinders of the first printing couple whereby the printing relation between these cylinders is not disturbed by the action of the cam mechanism upon the feed board.

The two color press illustrated in Fig. 4 may be adjusted to enable the grippers of the transfer cylinder 16 to transfer the printed'sheet in the first revolution thereof as shown in Fig. 3 after receiving the sheet from the first impression cylinder (instead of in the second revolution of the transfer cylinder 16 as before described and illus trat-ed in Fig. 4) to the second impression cylinder 26. The time that the grippers of the second impression cylinder 26 take the sheet from the transfer cylinder 16 is therefore changed so as to take the sheet from the grippers on the transfer cylinder 16 in the aforesaid first revolution -of this cylinder 16. It follows that ladjustment should be made of the second printing cylinder 21 to cor respond to the altered time relation of the second impression Vcylinder 26 to establish proper printing relation between these cylinders of the second printing couple. This adjustment -of the second printing cylinder is effected by revolving it one-half a revolution while the other cylinders are stationary and the tripping cainmechanism pertaining to.

this printing cylinder, 21 is correspondingly adjusted a half revolution which is accomplished by removing the bolt da and placing it in a new hole in the cam d of this trip ping mechanism which is diametrically opposite the hole in this cam that previously received the bolt.

The transfer' cylinder 28 may be moved bodily to and from cylinder 26 by cam 81 (carried by the independent gear 3) and may operate the cam lever mechanism 82 which shifts the arm 83 lthat is carried by.

the eccentric 84, in which eccentric the shaft of cylinder l28 is mounted. This adjustment and mechanism for accomplishing 1t is disclosed in m co-pending 'application Serial No. 146,330, filed February 3, 1917.

Each printing cylinder 17 and 21 is inked by means of form rollers 83 which are distributed in pairs or couples, each couple having a vibrating distributing roller 84 in the usual relation to the form roller. Each distributing roller has the usual gear 85 driven by the usual pinion 86. These pinions 86 are broad faced and turn loosely upon the shafts 87 fixed in the frame of the press.

The inking rollers pertaining to printing cylinder 17 are driven by the gear 8S (that is in mesh with the adjacent pil" as i which in turn is driven by the gea i i 9, retatably mounted. on the hub ot' gear 9 that in turn is driven by the broad faced gear 7, this gearing being independent of the gears that are connected with the printing cylinder 17 and impression cylinder 11 for driving these cylinders. The inking rollers pertaining to the printing cylinder 21 are driven by the gear 90 (that is in mesh with the adjacent pinions 8G which is rotatably mounted on the hub of gear Q41) and which (in Figs. 2 and 3) in turn is driven by the gear 54 that in turn is driven by the gear 231 that is fixedly coupled with the gear 13 which is driven by gear 12, this gearing that drives the inking Arollers pertaining to the second printing cylinder 21 being independent of the gears that are connected with the printing cylinder 21-an'd impression 'cylinder 16 for driving these cylinders. According to the adjustment illustrated in Fig. 4 and Fig. 2 the gear 12 drives the gear 54 by being fixedly coupled therewith by the bolts 25 that are transferred to the holes and 55,but it will be noted that in this adjustment the cylinder 16 is raised to its upper position, in which position the gear 54 is out of mesh with the gear 90. In this adjustment said gear 90 is in mesh With the gear 231, due to the fact that the cylinder 26 has been moved to its l lowermost position for .impression engagement with cylinder 21, said gear 231 being driven by gear 54, whereby the direction of rotation of the inking rollers that pertain to the second printing cylinder 21 is reversed at the same time the rotation of the second printing cylinder is reversed, these inkmg rollers still being rotated by gearing that is independent of the gears that are connected with the cylinders of the second printing couple. By means of the independent. gearing or` trains of gears that operate the inking mechanism pertaining to the printing.

cylinders the operation of the inkin mechanism is prevented from disturbing t 1e printing relation between the printing cylinders and their respective, impression cylinders as little as possible.

Referring rstparticularly to Figs. 3 and 4, the printing cylinder 17 has one registering segment 91 coperating with a registering segment 92 upon the corresponding impression cylinder 11. The printing cylinder 21 has two registering segments 93, 94, the registering segment 93 being complcmental to the registering segment 95 provided upon the cylinder QG when the press is adjusted to operate as a two color press, Fig. 4, this segment 98 being at one end of the form 38.

The registeringsegment 94 is complemental to the registering segment 96 provided upon the cylinder 16 when the press is adjusted to operate a rerfector press, Fig. 3. Each registering segment desirably has its base resting upon a ledge carried by the correlspending cylinder` Fig. 4. For example, registering segment 93 has its hase resting upon the ledge 97 while the registering segment 95 has its base resting upon the ledge 99. Il he complemental registering segments pertaining to the eyliinlers ot each coupe are adjustable transversely ot the axis of rclation ol.t such cylinders whereby they may be caused so to mesh that there willV be no backlash or lost motion between the teeth thereof. This adiustn'ient may be eiiiected h v means of liners at the bases 'of the registering segments. The registering segments may be adjusted simultzlneously as by means of bolt and slot connections such as are illustrated at 99` Fig. 4. Bv means of this adjustment registering segments may be placed in selected positions with respect to the meshing gears that drive the cylinders so that the rcgisteriinr segments will not crowd the teeth of those gears in either direction.

lVliile I have herein shown and particu,- larly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention` but having thus described Inv invention I claim as new and desire to secure by Letters Patent the following l, .1 rotary printing press including a printingcouple comprising an impression cylinder and a printing cylinder; inlring roller mechanism for the printing cylinder; a train of gears for each of the aforesaid cylinders for operating them; a train of gears for operating the inking roller mechanism; and a gear common to said trains of gears for operating them.

Q. A rotary printing press including two printing couples each comprising an impression cylinder and a printing cylinder; inking roller mechanism for each printing cylinder; a train of gears `tor each ef the aforesaid cylinders for operating them; a train of gears for operating each inlting roller mechanism; and a. gear connnnn to said trains of gears for operating there.

3. A rotary printing press including a printing couple comprising an impression cylinder and a printing cylinder; inking roller mechanism for the printing cylinder; a train of gears for each of the. aforesaid cylinders for operating them; a train of gears for operating the inking roller mechanism; and a gear common to said trains oi gears for operating them; the shaft et one of said cylinders carrying a gear included in the train that drives the other cylinder.

soy

lido

4. A rotary printing press including' a.vr

printing couple comprising an impression cylinder .and aprinting cylinder; inliingI roller mechanism for the printing cylinder; a'train of gears for each of the aforesaid cylinders for operating them; a -train of gears for operating the inkingroller mecha. nism; and a gear common to said trains of gears for operating them, the shaft of the impressi-'fin cylinder carrying a gear included l in' the train that drives the printing cylinder'.

`.fearsincluded in the trains that drive the respective printing cylinders.

i v6.-A` rotary yprinting press including a' printing couple comprising an impression Vcylinder and a printing cylinder; a trainl of gears for ea-chof the aforesaid cylinders for operating them; agear common to said trains of gears for operating them; the shaft of one of said cylinders carrying a gear included in the ytrain that drives the other cylinder.

7. A, rotary printing press including a printing couple comprising an impression carrying. gears included in the trains that `rcylinder and a printingcylinder; a train of gears for each of the aforesaid cylinders for operating them; and a gear common to said trains of gears for operating them, the shaft of the impression cylinder carrying a gear incll'ided in the train that drives thel printing cylinder. ,e

8. A rotary printing press'incliiding two .printing couples cach comprising an inipiessioncylinder and a printing cylinder; atrain of gears for each of the aforesaid cylinders for operating them; and a gear common tosaid trains of gears for operating them, the shafts of the impression cylinders drive the` printing cylinders.

"9. A rotary `printing lpress lincluding a printing couple comprisingan impression cylinder and` a printingcylinder.; finking roller mechanism for the printing cylinder; a train of gears for each of the aforesaid cylinders `for operating them; a train of gears `for operating the inking roller mechanism; and a gear common to said trains of gears for operating them, the shaft of the impressionv cylinder Vcarrying a gear lincluded in the train that drives the printing cylinder, said common gear being disposed about the shaft of one of the cylinders 0f the press;`

1Q. AA 'rotaryprinting preSsincluding two printing couples each vcomprising an" imfpression cylinder and a printing cylinder; l

inking roller mechanism for each printing cylinder; a train o f ygearsfor each of the-1v 'aforesaid cylinders for` operating them 5 a train of gears` for operating eachinking rollersmechanism; and a gearg-commonto said trains of gears for operating them, the' shaftof the impression cylinders carrying gears included' in the trains that'drive the respective printing cylinders, said common gear bein disposed'about the shaft of one 11. A rotaryprinting press including la:

- of the cylinders of the press.

printing couple comprising an impressionv cylinder -anda printing cylinder; a trainof gears for each of the aforesaidcylinders yfor V operating them; and a gear common tosaid y trains of gears for operating them, the shaft of the impression cylinder carrying a gear included in the train that drives the printin cylinder, said common gear being dispose about the shaft of one of the cylinders of 'the press.

12. A rotary: printing press including a printing couple comprising an impression cylinder and a printing cylinder; Ainking rollerinechanism for'the printing cylinder; a train of gears for each` of the aforesaid Acylinders for operatingthem; atrain of gears for operating the inking roller mechanism; and .a gear common to said trains of gears for operating'them, the shaft of the impression cylinder carrying a gear included in the train that drives thepiinting cylinder,'said common gear being disposed about impression cylinder and printing cylinder operating trains arealso disposed aboutfthe shaft about-,which the common: gearv is dis-l posed.

13. A rotary printing press including two -the shaft of one ofthe cylinders of the press, e while gears in the inking roller mechanism,

aforesaid cylinders for operatingthem; a,

.train of gears for operating `each inkirig roller mechanism; and agear .common to 1 said trains of gears for operatingthem`,ftlie shaft ofthe impression cylinders 'carrying gears included in the trains that drive the printing cylinders, said commonl ear being disposed about the shaft of one o the cylinders of the press while gea-rs in the inking roller mechanism, impression cylinder printing cylinder -operating trains are also disposed bout 1 thc shaft about common Vgear is` disposed.l

which; the I its printing couple comprisinganimpression cylinder and a printing cylinder; a' traino gearsv for each of the aforesaid` cylinders for operating'vrztliem; and a' gear' commonj/tof saidlti'aiiisff gears for operating.them`the shaft 'of the impression cylinder carrying a gear included in the train that drives the printing cylinder,v said common gear being disposed abb/lit the shaft ofone of the cyl'- inders of the press while gears in the impression cylinder and printing cylinder trains are also disposed about the shaft about which p the common geardisposed.-

` 15. A rotary printing press including -tWo printin couples each comprising an impression cyinder and a printing cylinder; a

train of gears for 'each of'gtheqaforesaid cylinders for operating theinff; and a gear common to said trains of gearsf for operating them, the shafts/of the impression cylinders carrying gears included in the trains that drive the printing cylinders, said common gear being disposed about the shaft of one of the cylinders of the press while gears in the impression cylinder 'and printingcyl? inder trains are also disposed about the` shaft about which they common gear is dis-- posed..

16. A rotary` printing press 'including a printing.A couple comprising an vimpression -cylinder and a printing cylinder; a train of gears for each of the aforesaid cylinders for operating them; a gear common to said -anism for said printing cylinder; a train of gears for operating the inking roller mechanism; aV gear lcommon .to said trains of gears; tripping mechanism for breaking the printing relation between said printing cylinder. and said impression cylinder; and

means having operable connection with said' common gear,v and said tripping mechanism` for operating saidvtripping mechanism in timed relation with said common gear..

18..,A,r0tary `printing press including a printingfcoiiple comprising anvvimpression cylinder and a printing cylinder; inking roller mechanism 'for the printing cylinder;

a. train of gears for each of the aforesaidcylinders for. operating them; a train of gears for operating the inking roller mechanism; a gear common tosaid train of gears for operating them; the shaft ofthe impression cylinder carrying a gearl included in the train that drivesthelpriiirng cylinder; tripping mechanism for breaking'theprinting relation between said printingcylindeirand said impression cylinder; and means having operable connection with said common gear andA said tripping mechanism for operating said'tripping mechanism in.V timed relation with said common `gear.

= 19. A rotaryy printing press including a i printing couple comprising an' impression v.cylinder and a printing cylinder; a train of gears for each of the aforesaid cylinders Vfor operating them; a gear common to saidY trains of gears for. operating them; the shaft of the impression cylinder carrying va gear y includedin thetra-in that drives the printing cylinder; tripping mechanism for breaking the printing relation between said print? ingcylinder and said impression cylinder; .and 4means having operable connection 'with ,A said common gearzand said tripping4 mechanisin for operating said tripping meclianism in timedy relation 'with said common gear'4 y V- i. y l' 20. A rotary printing'press including a a train of. gears fory eachvof the aforesaid cylinders.' for :operating them; a train of printing coupleoompr1s1ng an impression -l 4 cylinder "and 'a printing cylinder; inking rolleroniechani'sn'u for the printing cylinder; Y

gears for operating the inking'roller meclianisin; a gear common tolsa'id trains of gears for operating them; tripping mechanism for breaking theprinting relation between vsaid printing'cyli'nder and said impression cylinder;` and means having operable connection with said commongear for operatingv said tripping mechanisml in timed vrel-'ation vwith said common gear. y

21. A.` rotary `printing press including a. vprinting couple comprising an .impression cylinder and `a printing cylinder; iiikingy roller mechanism for the printing cylinder; atrain of gears foreach of the aforesaid cylinders for operating them; a train of gears for operating the inking roller mechanism; a gearcommon to said trains of gears 'for operating them; tripping. mechanism for breaking the printing relation betweenA said printing. cylinder and said impression cylinder; and means having operablecoiinection with said common gear for' operating said trippingmecli'anism in timedl relation with said Icommon-gear.

22. A rotary printing f press including a printing couple comprising an impression` 'cylinder and a'prlnting cylinder; a ti'ain rof gears for each of the aforesaid cylinders for operating them; ay gear common to said ti'ainsoi gears for operating them tripping [iis `mechanism for breaking the printing i'ela..

tion between said printing 'vcylinder and said impression cylinder; and means hav- A l ing operable connection with said common gear lfor operating saidA tripping `mechanism in timed relation with said common gear.'v y A23.1111 a rotary printing press, the combination with a printing cylinder; of two Lacasse impression cylinders; means for bringing either of said impression cylinders into impression relation with said printing cylinder; tripping mechanism adapted to trip said printing cylinder from its impression relation with either of said impression cylinders; said tripping mechanism including` a timing cam driven in timed relation with said printing cylinder; and means for changing the timing of said cam relative to said printing cylinder whereby the printing cylinder may be tripped at the propel' time relatively to the impression cylinder with which it may be in impression relation.

24. In a rotary printing press, the combination with a printing cylinder; of two impression cylinders; means for adjusting said iirst impression cylinder into and out of impression relation with said rinting cylinder; means for adjusting said other impression cylinder into and out of impres- 'sicn relation with said printing cylinder;

and tripping mechanism for said printing Vcylinder adapted to trip the same fromy its impression relaticn with either of said impression-cylinders; said tripping mechanism mclncling a timing cam driven in timed relation with said printing cylinder; and means for changing the timing of said cam relative, to said printing cylinder whereby thev printing cylinder may be tripped at the prcper time' relatively to the impression cyler with which it may be in impression relation. v

25. in a rotary printing press, the combination with a printin cylinder; of two impression cylinders; t e rst of said ,cylinders being adapted to receive a sheet and to transfer the same to the other impression cylinder, said :other impression cylinder being adapted to receive the sheetl from said first impression cylinder; means for bringingl ither of said impression cylinders into c sion relation with said printing cylindei; and tripping mechanism for said printing cylinder' adapted to trip said printing cylinder from its impression relation with either of said impression cylinders;

` said tripping mechanism including a timing' cam driven in timed relation with said printing cylinder; and means for changing the timing cf said cam relative to said printingcylinder whereby the printing cylinder may be tripped at the proper time relatively to theimpression cylinder witli which it may bein impression relation. r

26. ln a rotary printing press, the combinatien 'with a printing cylinder; of two impression fcylinders, the first of said cylinders being adapted to receive a sheet and to transfer the same to the other impression cylinder, said other impression cylinder being adapted to receive the sheet from said firsty impression cylinder; means for adjusting said first impression cylinders into and out of impression relation with said plate cylinder; means for adjusting said other impression cylinder into and out of impression relation with said printing cylinder; and tripping mechanism for said printing cylinder adapted to trip the same from its impression relation with either of said impression cylinders; said tripping' mechanism including a timing cam driven in timed relation with said printing cylinder; and means for changing the timing of said cam relative to said printing cylinder whereby the printing cylinder may be tripped at the proper time relatively to the impression cylinder with which it may be in impression relation.

27. A. rotary printing press including a printing couple comprising an impression cylinder and a printing cylinder; a train of gears for each of the aforesaid cylinders for operating them; a gear common to said trains of gears for operating them; a feed board positioning mechanism; and anvoperable connection between said common gear and said last mentioned mechanism for-operating said mechanism in timed relation with said commongear.

28. A rotary printing press including a printing couple comprising an impression cylinder and a printing cylinder; inking roller mechanism for the printing cylinder; a train of gears for cach of the aforesaid cylinders for operating them; a train of gears for operating the inlring roller mechanism; a gear common to said trains of gears; a feed board positionin mechanism; and an operable connection etween said common gear and said last mentioned mechanism for operating said mechanism in timed relation with said common gear.

29. A rotary printing press including a printing couple comprising an impression cylinder and a printing cylinder; a train of gears for each of the aforesaid cylinders for operatingthem; a gear common to said trains .of gears for operating them; a feed board positioning mechanism; a tripping mechanism; and operable connections between said feed board positioning mechanism and said tripping mechanism and said common gear for operating said tripping mechanism andsaid feed board positioningv `mechanism in timed relation with said common gear.

30. In a rotary printing press the combination with a printing cylinder; of two impression cylinders; means for adjusting the iirst impression cylinder into and out of impression relation with said printing cylin'der; meansfor adjusting theother impression cylinder into and out of impression relation with said printing cylinder; a first gear in fixed relation with said printing cylinder;,a second gear in fixed relation with the first impressioncylinder a third gear in fixed relation with the other impression cylinder and constantly meshing with said last mentioned gear; a fourth gear movably mounted; a'fifth gear movably mounted and `constantly in mesh with said fourth gear, -said fourth and fifth gears being adapted to mesh with said first gear when their respective impression cylinders are in impression relation 'with said printing cylinder,. said fourth and fifth gears being adapted to be rotatorially fixed relatively to their respective, impression cylinders.

3l. In a rotary printing press the combination with a printing cylinder; of two im pression cylinders: means` for adjusting the first impression cylinder intoand out of impression relation with said printing eylin adjust-ing the other impression cylinder into and out of impression relation with said printing cylinder; a first gear in fixei'l-relation with said printing cylinder; a second gear in fixed relation with said-first impression cylinder; a third gear in fixed relation with said other impression cylinder. and constantly meshing with said last mentioned gear; and a driving gear constantly in mesh with said third gear and adapted to be rotatorially fixed relatively to said second gear'.

82. In a rotary printing press the combination with a printing cylinderzvof two impression cylinders, the first impression cylinder being adapted' to receive a sheet and to transfer the same to the other impression cylinder, said other impression cylinder be ing adapted to receive the sheet from said first cylinder; means fo' adjusting the first impression cylinder into and out of impression relation with said printing cylinder; means for yadjusting the other impression cylinder info and out of impression relation with said printing cylii'ider: a first-gear in fixed relation with said printing cylinder; a second gear in fixed relation with said first impression cylinder: a fhirdfgear in fixed relation with said other impression cylinder and constantly meshing with said last mentiontal-geama fourth gear movably mounted and adapted to be moved into and out of mesh with said first. gear; a fifth gear movably mounted and adapted to be moved into and out of mesh with said first gea 'and con stantly in mesh with said fourth gear; said fourth and fifth gears being adapted to be rotatoriall fixed relatively to their respective impression cylinders; means for rot-atorially fixing either said fourth or fifth gear with its respective impression cylinder.

33. In a rotary printing press the combination with a printing cylinder; of two impression cylinders, the first impression cylinder being adapted to receive a sheet and to transfer the same to the other impressioii cylinder,` said other impression cylinder bevder; means for l. ing adapted to receive the sheet from said first cylinder; meansl for adjusting the first Vimpression cylinder into and out. of' impression relation with saidprinting cylinder; means for adjusting the other impression, cylinder into and out of impression relation with said printing cylinder; a first gear in fixed relation with said printing cylinder; a second gear in fixed relation with said first impression cylinder; a third gear in fixed relation with said other impression cylinder and constantly meshing with said last men-' tioned gear; a fourth gear movably mounted and adapted to be moved into and out of mesh with said first gear; a fifth gear movably mounted and adapted to be moyed into and out of mesh with said first gear and constantly in mesh with said fourth gear, said fourth gear and fifth gear being adapted to be rotatorially fixed relatively to their respective impression cylinders; means for rotatorially fixing either said fourth or fifth `gear with its respective impression cylinder; and a driving ,gear constantly in mesh with said third gear` and adapted to be rotatorially fixed relatively to said second gear.

3st. In a rotary printing press the combination with a prmt-ing cylinder; of two iinpression eylindeis, the first impression cylinder being adapted to receive a sheet and to,

transfer the same to the otherk impression cylinder, said other impression cylinder being adapted to receive the sheet from said first cylinder; means for adjusting the. first impression cylinder into and out of iinpression relation with said printing cylinder; means for adjusting the other impression cylinder into and out of impression relation with said printing cylinder; a first gear in fixed relation with said printingcylinder; a second gear in fixed relation with said first impression cylinder; a third gear in fixed relation with said other impression cylinder and constantly meshing with said last mentioned gear; a fourth gear movable with said first impression cylinde; a fifth gear movable with said other impression cylinder and constantly in mesh with said fourth gear`r said fourth and fifth gears being adapted to mesh with said first. gear when their respective impression cylinders are in impression relation with said printing cylinder, said fourth and fifth gears being adapted to be rotatorially fixed relatively to their re spective in'ipression cylinders.

35. In a rotary printing press the combination with a printing cylinder; of two iinpression cylinders. the first impression cylinder being adapted to receive a sheet and to transfer the same to the other ilnpression cylinder, said other impression cylinder lie-- ing adapted to receive the sheet from said first cylinder: means fo adjusting the first impression cylinder into sion relation with said printing cylinder; means for adjusting the, other imj'ireS-,sion

and out of inipresmesses cylinder into arid out of impression relation with said printing cylinder; a first gear in relation with said other impression cylinder y te ,with said printingfcylinder;

and constantly meshing With said last men tioned gear; a fourth gear movable with said .first impression cylinder; a fifth gear mevable with said other impression cylinder and constantly in mesh with said fourth gear, said fourth and fifth gears being adapted to mesh With said first gear when their resped tive impression cylinders are in impression relation with said printing` cylinder; said fourth and fth gears being adapted to he rotatorially fixed relatively to their` respective impression cylinders; and a driving gear constantly in mesh with said third gear and adaptedto be rotatorially fixed relatively to said second gear.

36. ln a rotary' printing pressthe combination with a printing cylinder; of tivo irn-v pression cylinders, the first impression cylinder being adapted to receive a sheet and to transfer the same to the other impression cylinder, said other impression cylinder he' ing adapted to receive the sheet from said first cylinder; means for adjusting the first impression cylinder into and out of impression relation with said printing cylinder; means for adiusting the other impression cylinder into and out of inipressionrelation With said printing cylinder; a first gear in fixed relation with said printingcylinder; a second gear in fixed relation with said first impression cylinder; a third gear in fixed relation with said other impression cylinder and constantly meshing withl said last mentioned gear; a fourth gear having the same airis as and Inova"A le With said first impression cylinder; a fifth gear having the same axis and movable with said other impression cylinder and constantly in mesh with said fourth gear, said fourth and fifth gears being adapted to mesh With said first gear when their respective impression cylinders are in impression relation with said printing cylinderi said fourth and fifth gears being adapted to be rotatoria-ily fixed relatively to their respective impression cylin ders..

A3'?. n a rotary printing press the combination with a printing cylinder; of two im' pression cylinders, the first impression cyl- 'inder seing adapted to receive a sheet and to transfer the same to the other impression cylinder, said other impression cylinder being adapted. tolreceive the sheet from said rst cylinder; means for adjusting the first impression cylinderfinto and out 4of impression relation with said printing cylinder; means 'for adjusting the other impression cylinder into and ont of impression relation a first gear in fixed relation with said printing cylinder; a second gear in fixed relation with said first impression cylinder; a third gear in fixed relation with said other impression cylinder and constantly meshing with said last mentioned gear; a fourth gear` having the same axis as and movable With said first impression cylinder; a fifth ear having the same axis as and movable with said other impression cylinder and constantly in mesh With said fourth gear, said fourth and fifth gears being adapted to mesh with said first gear when their respective impression cylinders are in impression relation With said printing cylinder7 said fourth and fifth gears being adapted to be rotatorially fixed relatively to their respective impression cylinders; and a driving gear constantly .in mesh with said third gear and adapted to be rotatorially fixed relatively to said second gear.

38. 'ln a rotary printin press, the combination with a printing cy inder; of two impression cylinders; means for adjustin the first impression cylinder into and out o impression relation vvith said printing cylinder; a first gear in fixed relation with said printing cylinder; a second gear in fixed relation with the first impression cylinder; a third gear in fixed relation with the other impression cylinder and constantly meshing with said last mentioned gear; a fourth gear movably mounted; a fifth gear movably mounted and constantly in mesh with said fourth gear; said fourth and fifth gearsbaing adapted to mesh with said first gear when their respective impression cylinders are in impression relation With said printf ing cylinder, said fourth and fifth gears being adapted to'be rotatorially fixed relatively to their respective impression cylinder; a common driving gear constantly in mesh with said third gear and ada ted to be rotatorially fixed relative to said second gear; and tripping mechanism for said printing cylinder having operable relation with said common driving gear.

39., ln a rotary printing press the combination With a printing cylinder; of two impression cylinders; means for adjusting the firstlimpression cylinder into and out of impres-sion relation with said printing cylinder; means for adjustingfthe other impression"cylindcr into and oittof impression relation `With said printing cylinder; a first geirain fixed relation with said printing cyliniler'; a second gearfin fixed relation with said first impression cylinder; a third gea-r infixed relation with said other impression cylinder and constantly meshing With' said last mentioned gear; a. fourth gear movable with said first impression cylinder; and a fifth gear movable with said other impression cylinder and constantly in mesh with said fourth gear, said fourth and fifth gears being adapted to mesh-With said first gear when their respective impression cylinders connected with each of said cylinders, one of 10 are in impression relation with said printing said cylinders having a ledge engaging the cylinder, said fourth and fifth 'gears being' base of the registerlng element connected adapted to be rotatorially fixed relatively'to with this cylinder.

5 their respective impression cylinders. In witnswhereof, I hereunto subscribe 40. A rotary prlnting press including a my namethis 19th day of February A. D. 15

printing couple haviiig two cylinders; a. 1917. driving gear for driving ealch cylinder; and registering mechanism having an element ROBERT MIEI-ILE.'

DISOLAHVIER.

1,293,855.-R0bert Miehle, Chicago, Ill. COMBINATION TWO-COLOR AND PERFECTOR PRINTING PRESSES. Patent dated February 11,1919. Disclaimer` filed December 5, 1925, by the patentee.

Hereby enters this disclaimer to that part of the claim in Said Specification Which is in the following Words, L0v Wit:

t0. A rotarg printing press inet/acting a printing couple haring two cylinders; a dri/ving gear for driving' each efl/tinater; and registering mechanism haring an element connected with each. of said cylinders, one 0] said ey/Zincters lia/ving a ledge engaging the base of the registering element connectent wit/1, this cylinder.

[Oficial Gaeette December .739, 19925.]

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