US1295558A - Printing-press. - Google Patents

Description

n. MIEHLE. l

PRINTING PRESS.

APPLICATION FILED FEB. 3. 1917.

Patented Feb. 25,1919.

R. MIEHLE.

PRlNTING PRESS.

APPucAUoN FILED FEB. s. 1917.

Patented Fei). 25, 9l9.

5 swans-SHEET 2.

R. MIEHLE. PRIIIITIIIIG PRESS. APPLICATION FILED FEB. 3. 1917.

Patented Feb.25,1919.

wwwa.

5 SHEEI'S-SHEE 3.

Vl M Don n R. MIEHLE.

PRINTING PRESS.

APPLICATION FILED FEB. s. 1 917.

.Patented Feb. 25, 1919.

5 SHEETSSHEE 4.

R. MIEHLE.

PRINTING PRESS. APPLICATION FILED rss. a. 1917.

Patented Feb. 25, 1919.

5 SHEETS-SHEET 5.

l/Vl/ENTUR mi@ 'STMESATENT Orme ROBERT MIEHLE,v OF CHCAGQ .ILHNIS.

PRINTING-PRESS! To all whom t may concern.'

Be it known that I, ROBERT MIEI-ILE, citizen ofthe United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and usefulImprovement in Printing-Presses, of which the following `is a full, clear, concise, and exact description.

My invention relates to printing presses and, in many of its aspects, is of particular service in connection with rotary printing presses. The invention has for one of its objects theY provision of mechanism whereby the forms or printing faces of the printing orform cylinders are not unduly impaired in the printing operation, a result which I achieve by the omission of direct gear connections between these cylinders whereby either is driven bythe other. The engaged 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 a rubbing or grinding action upon the form or printing surface upon the printing cylinder. As I have illustrated my invention herein it has been shown embodied in a type letter press but the invention is not to be thus restricted.

l The press of my invention is of particular service in multi-color printing and when employed for this purpose I desirably use two impression cylinders, one for each color, though there are characteristics of the invention that are not to be limited to such an embodiment. When there are two impression cylinders there is a form or printing surface individual to each.Y The forms or printing 1surfaces are desirably carried upon the same printing cylinder which is then common'to the' impression cylinders. The impression cylinders are relatively adjustable to establish and break printing relation with the printing cylinder inthe preferred embodiment of the invention.' j

My invention has for another ofits objects the provision of an improvedA interrelation oft-ransfer cylinders with the impres' sion cylinders and the timing thereof with? respect' to the impression cylinders and the, The invention has for its further.

sheets. object, in a'multi-color printing'press, 1mproved means for effecting transfer from a transfer cylinder tothe impression cylinder' Specification of Letters Patent. Paggnted Feb. 25, 191e.

Application filed February 3, 1917. Serial lNo.r146,3 30. i

'that is lto take sheets therefrom whereby there will, be no interference between the .printing surfaces of the sheets upon such :impression cylinder with the sheets on the transfer'cylinder so that'printing'will not be offs'etrupon the latter' sheets.

yMy invention also has for its object'the provision of bodily adjustment of a transfer cylinder toward and from its associate im- 'pression cylinderfor' the purpose of preventing the offset of printing from printed .of the cylinders of the printing couple, a

gear connected with the other cylinder for drivingit, a driving 'gear common to said -train of gears and the aforesaid gear, and registering mechanism having an element connected with each of said'cylinders.

There are many important features that relate to the gearing employed in driving the ,cylinders ofthe press, the mechanism yfor adjusting grippers oftransfer cylinders, mechanism for timing and interrelating op- -erations of various elements of the press, the movements of the impression cylinders with respect tothe printing cylinder .and with respect to the transfer cylinder or cylinders Vwhereby new and important results are sclcured, explanation of which will require reference to the accompanying drawings illustrating the employment of the invention in a '.two color. type letterprinting press.

I will explain my invention more fully by reference to the accompanying drawings showing the preferred embodimentv thereof and in which Figure l is a view taken from the main gear side of the press,vparts being broken away in order that characteristics of construction` may be more fully revealed, other parts of the press which are well knownto those skilled j in the art being omitted; Figs. 2, 3, 4, 5 and 6 are sectional views looking from the otherV side of the press which respectively, showsomeof the fjsuccessive positions of component parts of the mechanism; and Fig. 7 is an end v iew of a part of the Vpress showing mechanism inders along .the lines 141, 181 I amialso enabled to secure 4the .desired interrelation between the4 impression 4 cylinderscand the transfer cylinders.

The impression cylinders 14 and 18 are respectively individual tothe form beds 8 and 7 and are provided with the usual mechanism whereby each may be brought into printing relation with the form. bed to which itis individual and may be prevented from having printing relation with the other form bed when passing about the same and as this forms no part of my present invention a detail description thereof need not be furnished, it suliicing to say that such mechanism as that illustra-ted in my Patent 1,081,320, dated December 16, 1913 maybe employed for this purpose, the cams being modified to suit the proper timing relation with the movements of the impression cylinders and the form surfaces on the printing` cylinder.

The sheets to be printed upon are fed to the first impression cylinder-14, from the feed board or feed structure 23, the mechanism of the press changing its relationship to the paper being printed upon and having the relationship of its parts changed as illustrated in Figs. 2 to G'incliisive, these figures takenv in their order, illustrating` successive steps in a cycle of operations from the time the sheet is taken from the feed board vuntil its transfer to the tapes ofthe delivery mechanism. These figures illustrate the progress of three sheets 24, 25 and 26 through the press. In Fig. 2 the grippers 27 have partially withdrawn the sheet 24 from the feed board 23, this sheet having been taken b v these grippers at the ends of the feed board guide tongues 231. The impression cylinders turn in a 'counterclockvvise direction while the forni cylinder and transfer cylinders turn in a clockwise direction as viewed in Figs. 2 to 6 inclusive. As the cylinder 14 turns the sheet 24 is laid thereon and the printing operation upon the sheet commences short-ly after the gripped ends of t-he sheet 24 reaches the beginning of the form bed 6 as indicated in Fig. 3, registering;` segments 28 and 29 being provided upon the impression cylinder 14 and the form cylinder'.

In Fig. 4 printing upon the sheet 24 is in progress and in Fig. 5 the printing upon sheet 24 is nearly concluded and one end of this sheet has been taken by the grippers 30 upon the transfer cylinder 10 preparatory to removing the sheet from the impression cylinder 14 and thereafter effecting its transfer to the impression cylinder 18.- kDuring the time that the sheet 24 has been taken from the feed board, is printed upon, and is taken by the grippers 30,as indicated in Fig. 5', the preceding sheet 25 hasbeen taken by the grippers 30 and passes thjroi'igh the stages illustrated in Figs. 2, 3,v 4 and 5.17. The im= pression cylinder 18 has grippers 31 to which the sheet upon the cylinder 10 ,(sheet 25 as illustrated in Fig. 3) is transferred from the grippers 30, when the impression cylinder 18 and transfer cylinder 10 are in the relation illustrated in Fig. 3, this transfer being effected when the impression cylinder 18 is mid-way between its printing and nonprinting positions, the axis oncenter of the impression cylinder 18 then being in a radius of the transfer cylinder 10, the gears 11 and 19 then being in most perfect'mesh to insure proper registry of the sheet upon the cylinderrlS. The freshly printed or wet side of the sheet 25 lies against the sheet supporting portions of the transfer cylinder 10 which are generally of tooth forni to reduce as far as possible contact with the wet surface. In order to prevent the freshly printed side of the paper sheet on the impression cylinder 18 and the sheet upon thei transfer cylinder 10 from coming in contact, I space these cylinders apart and maintain these cylinders in register by enlarging the diameters of the pitch circles of' their gears 15 and 16 so that these pitch circles meet mid-way in the space betweenvsaid cylinders. `In order that the sheet t the sheet now being particularly borne in mind, this sheet having undergone the same .operation which was described in connection with sheet 24) may be transferred from the cylinder 10 to the second impression cylinder 18 to undergo a second printing operation, means are provided for causing the approach of grippers upon one of these cylinders to the grippers upon the other cylinder. I desirably employ means, to this end, which does not involve the bodily movement of either cylinder 10 or 18 toward the other but merely involves the movement of the grippers upon one of such cylinders toward the grippers upon the other cylinder. The grippers which are moved with reference to the cylinder carrying it and toward the grippers upon `the other cylinder are de sirably the grippers 30 that are carried by the transfer cylinder 10. rllhe mechanism whereby the movement of the grippers 30 with respect to the cylinder 10 toward and from the grippers 31 is desirably inclusive of a shaft 32 journaled in the ends of the cylinder 10, this shaft fixed-ly carrying arms 33 that terminate around the shaft 34 which is journaled at its ends upon the arms LThe shaft 34 has fixed thereupon the gripper stops 35. Thebell crank levers Y 36 are iiXed upon the shaft 34. The gripper rod 37 (the rod that carries the gripping fingers 30) is journaled in the upper ends of t-hefsaid bell cranlt levers 36. The lower ends of the bell crank are connected with the lii1ks'38 that are pivot-ed iiponthe cylinder 10; The arm 39 fixed to the shaft 32and carries a roller l0 whose position. Vis influenced by' V'the Cam 41. YA

spring 42 maintains the roller 4() in engagement `with the cam 41 when said camis to operate to project the grippers toward the grippers 31 as indicated in Fig. 3. At other times the spring 42 operates to maintain the gripper stop structure in engagement With the lug 43 whereby the cam roller 40 is then relieved of engagement. This mechanisn'i operates to move the grippers 30 and the gripper stops 35 ivhere they engage the sheet 25 in a manner not to cause creepage or backlash of the sheet upon the cylinder 10 which would mar the printing. The elements 38 and 83 act as links in substantially parallel motion mechanism to the end last stated. The usual roller mechanism 44 is operated to close the grippers 30 at the proper time.

After the sheet is taken by the grippers 31 of cylinder 18 the grippers 80 are disengaged from said sheet and are bodily moved in toward the shaft 9 of the cylinder 10 after the cam roller 4() has passed out of engagement with the cam 41 (Fig. 4). 1n the first revolution of the transfer cylinder 10 when it receives the sheet the cam 41 is shifted out of the range of the roller 40 so that in this first revolution the grippers 30 will not be moved outwardly. In the second revolution of the cylinder 10 the cam 41 is brought into the range of the roller 40 so that the grippers 80 may be moved toward the impression cylinder 18 for the purpose stated. The mechanism that may be employed for this purpose is inclusive of an arm 45 upon the outer end of which the cam 41 is carried, this arm being` pivoted at the point 46. The inner end of the arm 45 carries a cam roller 47 While the form cylinder carries a cam 48. The lower end of the arm 45 is heavy enough to maintain the cam 41 against the shaft 9, in which position of the cam the roller 4() may pass over the cam Without engaging it (Fig. 2). When the cam 41 is in operation upon the roller 40 the cam 48 engages the roller 47 and rocks the arm 45 to move the cam 41 outwardly (Fig. 3), in which position of the cam 41 the roller 40 Will turn thereupon to move the grippers 8O outwardly as has been described.

1n the operation of the press the cylinder 18 is moved outwardly from the position illustrated in Fig. 3 to the position illustrated in Fig. 4 after the grippers 31 take the sheet This operation is not required except when the cylinder 18 is tripped in the usual vWay since, in the tripping operation, the cylinder 18 has to bey moved from the position shown in Fig. 3' to the position shown in Fig. 4 to enable the registering gear segment49 to clear the registering gear segment 50 to separate the orbits of said segments When a printing operation is to be omitted. The sheet supporting por- Lacasse tions of the impression cylinders arealmost continuous'except Where the gripper-'s are disposed and are co-extensive With-the forms on the printing cylinder to Which they are individual whereby the printing cylinder has maximum form capacity and the impression cylinders have maximum impression capacity. The spaces intervening between the forms upon the printing cylinder are co-extensive With the gaps or nonsheet supporting` portions of the impression cylinders.` By this arrangement the maximum lineal speed of the paper through the press is obtained and maximum capacity is secured. The separation of the registering segments 49 and 50 is requiredv When the cylinder 18 is tripped since the impression cylinder 18 does not move on a. radial line of the form cylinder (Fig. 5) and therefore the registering segments ivould not properly mesh in the oit' position of the impression cylinder 18 if the impression cylinder. could move no farther outwardly than is indicated in Fig. 3. The pair of registering segments 49 and 50 are in a different plane of rotation from the plane of rotation of the pair of registering segments 28 and 29 so that the registering segment upon either impression cylinder ivill not engage the registering segment upon the'form that is individual to the other impression cylinder.

After the sheet 25 has undergone this second print-ing operation While upon the cylinder 18 it is discharged (directly or indirectly) upon the delivery tapes 51. By the mechanism illustrated in Figs 2, 8 and 5 the stripping lingers 52 strip the sheet from the cylinder 18 and guide it upon the tapes 51. Rollers 53 engage marginal portions of the paper (parts of the paper not printed upon) to cause the paper to travel with the cylinder 18 thereby to insure the discharge of the paper upon the tapes.

In case the sheets being printed upon are of such a nature that they cannot Well be discharged from the press by the mere cooperation of the rollers 53 and the strippers 52, I employ a transfer cylinder 22 Whose grippers 54 may be set by the attendant not to close upon their stops When the discharge upon the tapes is to be effected by the cooperation of the rollers 53 and strippers 52. When the transfer cylinder 22 (Figs. 4 and 6)V is to effect the discharge of the sheet these grippers are arranged' in coperative relation With their stops to enable them to gripl the sheets. A suitable device for adjust-- ing the grippers is indicated at 55 which includes a hand leve-r 56 and the eccentric mechanism illustrated, the Working parts of the adjusting device being held in posi:- tions to which they are adjusted by friction. The transfer cylinder 22`is bodily moved away from the cylinder 18 after its grippers have taken the sheet and after Ithe printing has been completed, to `which end the shaft 21 is carried in an eccentric -57 turning within a frame 58 that is in rigid connection with the journal boxes 182 of the cylinder 18. This eccentric 57 has an arm 59 by means of which it may be turned for the purpose of moving the impression cylinder 22 in and out. The mech- -anism employed for moving the arm desirpression cylinder. Ihe eccentric mechanism and the mechanism for operating the same which has been described is desirably duplicated at both sides of the press except cam 60 and arm 61. After the paper which has been transferred to the cylinder 22 is laidr upon the same and this cylinder has made onel revolution and the grippers 54 have passed sufiiciently above the tapes 51, such grippers are released from engagement with the paper and the tapes carrying the paper tothe deliveryv mechansim. The transfer cylinders are provided with sheet guards 65 (for the cylinder 10) and 66 (for the cylinder 22). The guards 65 pertaining to the cylinder 10 are stationary, as usual. The guards 66 are proviyded with mechanism whereby the points thereof follow the bodily movement of the cylinder 22. To this end the guards 66 may be fiXedly mounted upon a rod 67 journaled in the upper ends of the arms 68 that are carried by the frame 58. Arm 69 is also in fixed relation to the rod 67 and carries roller 70 at its lower end. The rod 67 is so positioned that. the weight of the guards 66 and the arm v69 `maintain the roller 70 in engagement with the transfer cylinder 22 in all positions to which this transfer cylinder is bodily adjusted. f

Certain features of construction are illustrated and not specifically described as their operation is well known by those skilled in the art. Among these are the-stripping fingers 52 and the mechanism for opening and closing the grippers upon the transfer and impression cylinders andfalso the ink rollers 72 which are individually adjustable toward and from the printing cylinder.

It will be seen that I have provided a printing press with an impression cylinder adapted to receive a sheet and print thereuponlduring the first revolution of its cycle and to discharge the sheet during the second revolution of its cycle, a transfer cylinder adapted, in the first revolution of its cycle, to receive the sheet being discharged from said impression cylinder and inthe second revolution of its cycle to cdischarge said sheet, a second impression cylinder adapted, in the first revolution of its cycle, to receive and print thereupon the sheet vdischarged from the transfer cylinder and, in the sec'- ond revolution of itscycle, to discharge such sheet, and rotary printing means coperating with said impression cylinders inprinting. This press, as the invention is herein illustrated, includes a printingcylinder common to the impression cylinders and having printing surfaces one for and individual to each impression cylinder, and means for causing the vrevolution of each impression cylinder a plurality of times for a revolution of the printing cylinder. It will also be seen that where they second transfer cylinder is employed it serves, in the first revolution of its cycle, to receiverthe sheet being. discharged from the second impression cylinder and, in the second revolution of its cycle, to discharge saidV sheet,there being automatic means for moving this second transfer cylinder away from the second impression cylinder upon the discharge of a sheet from the latter cylinder." While I'y have herein shown and particularly 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 my invention I claim as new and desire to secure by Letters Patent the ffollowingz* 1-. A rotary printing press including a printing cylinder; an impression cylinder,

said cylinders being relatively adjustable to establish and break printing relation between them; a gear having connection with the impression cylinder; a gear in mesh with and driving the aforesaid gear, the axes of rotation of these gears being substantially a fixed distance apart whether said cylinders are in printing or non-printing relation; and a transfer cylinder co-aXial .with the second gear. 2. A rotary printing press including a printing cylinder; an impression cylinder, said cylinders being'relatively-adjustable to 115 establish and break printing relation between them; a gear having connection with the impression cylinder; means other than the printing cylinder for driving said gear; and a transfer cylinder also operated by said means. v

3. A rotary printing pressv including a printing cylinder; an impression c. linder,

a xed distance apart whether said cylinders Y 'are in printing or non-printing relation; a third gear having connection With the printing cylinder and driven bythe means that drives the second gear; and: a transfer cylinder co-axial .Wi-th the-second gear.

4i. A rotary printing press including a printing cylinder; an impression. cylinder; said. cylinders beingy relatively adjustable to establish; and break printing krelation `between them; a gear having connection with the impression cylinder; a gea-r-y in mesh with and Vdriving the aforesaid` gear; the axes oflrotation. of these gears being substantially a fixed;v distance apartvvhether. said cylinders are in. printing manoir-printing. relation; a thirdV gear havingconnection` With the printing cylinder and" driven by the second gear; and a-transfer cylinder co-aXial with4 the second'y gear;

5. A rotary printing` press including a printing cylinder; an impression. cylinder, said .cylinders being relatively adjustable to establish and.A break printingl relation between them; mechanism commonto said'vcylinders for. rotating-them and operating upon the impression cylinder independently ofthe printing .cylinderv in the printing and .nonprinting operations; anda transfer cylinder also operated by said. mechanism.

6.A rotaryj printing-press including a printing cylinder; an. impression.` cylinder, said-.cylinders being relatively adjustable to establish and break printing relation between them; mechanism common 'toY said cylinders for rotating-them and operating upon the impression cylinder independently of the printing` cylinderi; and a transfer cylinder also operated'by said mechanism.

7. A rotaryl printing'` press-includingfa printing cylinder; an impression cylinder; a gear having connection With the impression cylinder.; Iav gearl in mesh AWithandidriving the aforesaid gear,l the axes ofjrotation of. thesel gears being substantiallyfa fixed distance apart; .a third gearV1 having connertion with the printing cylinder-andl driven by the means that drives the second. gear; and a .j transfer cylinder co axial i' With -the second gear.

I8. A, rotaryy printing. press including a printingcylinder.; an impression cylinder; a gearhaving connection with the impression: cylinder; a gear` in mesh with and drivingvth'e aforesaid gear, the axes of lrotation of thesefgearsbeing-substantially a fixed distance apart; a third gear hav-ing connection` with.y the Y. printingcylinder and driven byvthe second-gear;.and a transfer cylinder cao-axialwithl the second gear.

' 9. A rotary printing press including a printingcylinder;an impression cylinder; niechanismi commonfto said rcylinders for rotating-.them and operating upon the impressioni "cylinder independently of the printingcylinder-in th'eprinting and nonprinting operations ;l and-a transfer cylinder also operated by sald mechanism,

l0. A rotary printing press including a printing cylinder; an impression cylinder; a gear having connection With the impression cylinder; means other than the printing cylinder for driving said gear; a transfer cylinder also operated by said means; andV a second impression cylinder coperating with the printing cylinder, said transfer cylinder operating` to transfer sheets fromone impression cylinder to the other.

1l, A rotary printing press including a printing cylinder; an impression cylinder, said cylinders being relatively adjustable to establish and break printing relation between them; a gear having connection with the. impression cylinder; a gear in mesh with and driving the` aforesaid gear7 the axes of rotation of these gears being substantially a xed distance: apart ,Whether said. cylinders are in printing or non-printingl relation; a transfer cylinder co-axial With the second gear; and a second implies` sion cylinder coperating with the printing cylinder,- saidtransfer cylinder operating to transfer sheets from` one impression cylinder tothe other.

l2. A rotary printing press4 including a printingcylinder; an impression cylinder, said cylinders being relatively adjustablefto establish and break printing Vrelation between them; a gear having connection With the impression cylinder; means other than the printing-cylinder for driving said gear; a transfer cylinder'. alsoA operated by said means; and a second impression cylinder cooperating With the printing cylinder, said transfer cylinder' operating to transfer sheets from one impression cylinder to the other.

13. A rotary printing press including a printing cylinder; an impression cylinder, said cylindersbeing relatively adjustable to establish and break printing relation betweenthem; a gear having connection With the impression cylinder; a gear in mesh with and driving the aforesaid gear, the axes of'rotation of these gears beingsubstantially a fixed distance apartwhether said cylinders are in printing or non-printing relation; a third gear having connection with the printving cylinder and driven by the means that drives the second gear; a transfer cylinder co-aXia'l With the second gear; and a second impression cylinder coperating With the printing cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

14; A rotary` printing press including a printing cylinder; anV impression cylinder, said cylinders being relatively adjustable to establish and break printing relation between them; a. gear having connection With the impressionV cylinder; a gear in mesh -withand driving the aforesaid gear, the

axes of rotation of these gears being substantially a iXed. distance apart whether said cylinders are in printing or non-printing relation; a third gear having connection with the printing cylinder and driven by the second gear; a transfer cylinder co-axial with the second gear; and a second impression cylinder cooperating with the printing cylinder, said transfer cylinder operating to transfer sheets from oneimpression cylinder to the other.

15. A rotary printing press including a printing cylinder; an impression cylinder, said cylinders being relatively adjustable to establish and break printing relation between them; mechanism common to said cylinders for rotating them and operating upon the impression cylinder independently of the printing cylinder in the printing and non-printing operations; a transfer cylinder also operated by said mechanism; and a second impression cylinder coperating with the printing cylinder; said transfer cylinder operating to transfer sheetsk from one impression cylinder to the other.

16. A rotary printing press including a printing cylinder; an impression cylinder, said cylinders being relatively adjustable to establish and break printing relation between them; mechanism common to said cylinders for rotating them and operating upon the impression cylinder independently of the printing cylinder; a transfer cylinder also operated by said mechanism; and a second impression cylinder coperating with the printing cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

17. A rotary printing press including a printing cylinder; an impression cylinder; a. gear having connection with' the impression cylinder; a gear in mesh with and driving the aforesaid gear, the axes of rotation of these gears being substantially a fixed distance apart; a third gear having connection with the printing cylinder and driven by the means that drives the second gear; a transfer cylinder co-aXial with the second gear; and a second impression cylinder cooperating with the printing cylinder, said transfer cylinder operating to' transfer sheets from one impression cylinder to the other.

18. A rotary printing press including a of these gears being substantially a fixed:

distance apart; a third gear having conec# ion with the printing cylinder and driven by the second gear; a transfer cylinder co* axial with the second gear; and a second impression cylinder coperating with the printing cylinder, saidtransfer cylinder operating to transfer sheets from one impression cylinder to the other. v

19. A rotary printing rpress including a printing cylinde; an impression cylinder; mechanism common to said cylinders for rotating `them and operating upon the impression cylinder independently of the printing cylinder in the printing and nonprinting operations; a transfer cylinder also operatedby said mechanism; and a second impression cylinder coperating with the printingV cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

20. A rotary printing press including a printing cylinder; an impression cylinder, said cylinders being relatively adjustable to establish and break printing relation between them; a gear having connection with the impression cylinder; means other than the printing cylinder for driving said gear; a transfer cylinder also operated by said means; and a second impression cylinder cooperating with the printing cylinder and adjustable with respect to the printing cylinder to establish and break its printing relation therewith` said transfer cylinder operating to transfer sheets from one impression cylinder to the other. Y

21'. A rotary printing lpress including a printing cylinder; an impression cylinder, said cylinders being relatively adjustable to establish and break printing relation betweenthem; a gearfhaving connection with the impression cylinder; a gear in mesh with and driving-the aforesaid gear7 the axes of rotation vof these gears lbeing substantially a iiXed distance apart whether said cylinders are in printing or non-printing relation; a third gear having connection with the printing cylinder and driven by the means that drives the second gear; a transfer cylinder co-aXi-al with the second gear; and a second impression cylinder coperating with the printing cylinder and adjustable with re spect to the printing cylinder to establish and break its printing relation therev-Jith,

said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

22. A rotary printing press including a A printing cylinder; an impression cylinder,y

said cylinders being relatively adjustable to establish aud'hreak printing relation betweeny them; a gear "liavin'g connection with' theimpression cylinder; a gear in mesh with and driving the aforesaid gear, the axes of rotation of these gearsfbeing substantially a fixed dlstancelapart ,vhether said cylinders are in printing or non-printing relation; a

third gear having connection With the print ing cylinder and driven by the second gear; a transfercylinder co-aXial with the second gear; and a second impression cylinder c0- operating with theprinting cylinder and adnjustabile with `respect to the printing cylinder to establish and break its printing re lation therewith,- said` transfer cylinder operatingto transfer sheets from one impression cylinder tothe other.

23. A rotary printing press including a printing cylinder; an impression cylinder, said cylinders being relatively adjustable to establish and break printing relation 'between them mechanism common to said. cylinders for rotating them and operati-ng upon the impression cylinder independently ofthe printing cylinder in the printing and nonprinting operations; a transfer cylinder also operated by said mechanism; and a second impression` cylinder coperating with theprinting cylinder and adjustable with respect to the printing cylinder to establish and. break its printing relation therewith, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

24. A rotary printing press including a printing cylinder; an. impression cylinder, said cylinders being relatively adjustable to establish and break printing relation between them; mechanism common to said cylinders for rotating them and operating upon the impression cylinder independently of the printing cylinder; a. transfer cylinder also operated by said mechanism; and a second impression cylinder coperatingwith the printing` cylinder and adjustable with respect to the printing cylinder to establish and break its printing relation therewith, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

A rotary printing press includin a. printing cylinder; an impression cylin er; said cylinders being relatively adjustable to establish and break printing relation between them; a gear having connection with the impression cylinder; a gear in mesh with and driving the aforesaid gear, the axes of rot-ation of these gears being substantiallya fixed distance apart whether said cylinders are in printing or non-printing relation; a transfer cylinder co-aXia'l with the second gear; and a second impression cylinder, `said transfer cylinder operating to transfer sheets from one impression -cylinder to the other.

26. A rotary printing press including a printing cylinder; an impression cylinder, .said cylinders being relatively adjustable to establish and break printing relation between them; a. gear having connection with the impression cylinder; means other than the printing cylinder for driving said gear; a transfer cylinder yalso operated by said means; and a `second impression cylinder, said transfer cylinder operating to transfer Lees-555s;

sheets.: from oneimpression cylinderl to. theV other.

QA rotary printing pressi` including a. printing cylinder; an: impressiony cylinder;y saidicylinders being relatively adjustable to establish and break. printing relation between thein; a gear having connection with the' impression cylinder a gear in mesh printing cylinder; an impression cylinder7 said cylinders being; relatively adj ustablel to establish and break printing relation be tween .then'ig a gear lia-ving connection with the impression cylinder; agear in mesh with and driving the aforesaid gear, the axes of rotation of these gears being substantially alli-ved distance apart whether said cylinders are in printing @nnen-printing relation.; a third gear having. connection with the print-ing cylinder and driven by the second gea-r;` a transfer cylinder cof-axial with the second' gea-r; and a second impression cylinder, saidk transfer cylinder operating to transfer sheets from one impression cylinder to the other..

29. A rotary printing press including a printing cylinder; an impression cylinder,`

said, c linders being relatively adjustable to estaby shand break printing relation betweenk them; mechanism common to`v said cyl-- inclers for rotating them and operating upon the-impression cylinder independently of the printing cylinder in the printingv and non printing operations; a transfer cylinder also operated by said mechanism; and a second impression cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder tothe other.

30. A rotary Vprinting press: includingl a printing cylinder-g'. an impressi-onl cylinder; said cylinders` beingA relatively adjustable to establish and break printing relation. betweenk them; mechanism common to said cylinders for rotatingthem and operating upon the impression cylinder independently of the printing cylinder; a transfer cylinder also operatedby said mechanism.; anda second impression cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder to the-other.

31.A rotary printing press; including Aa printing cylinder; an impression cylinder;

a gear having connection with the vimpression cylinder; a gear in mesh with and driving the aforesaid gear, the axes Vof rotation of these gears being substantially a iiXed distance apart; a third gear having connection with the printing cylinderand driven by the ineansthat drives the .second gear; a transfer cylinder co-aXiaL with the second gear; and a second impression cylinder, said transfer cylinder operating vto transfer sheets from one impression cylinder to the other.

32. A rotary printing press including a printing cylinder; an impression cylinder; a gear having connection with the impression cylinder; a gear in mesh with and driving the aforesaid gear7 the axes of rotation of these gears being substantially a iXed distance apart; a third gear having connection with the printing cylinder and driven by the second gear; a transfer cylinder coaxial with the second gear; and a second impression cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

33. A rotary printing press including a printing cylinder; an impression cylinder;

4mechanism common to said cylinders for rotating them and operating upon the impression cylinder independently of the printing cylinder in the printing and nonprinting operations; a transfer cylinder also operated by said mechanism; and a second impression cylinder, said transfer cylinder operating to transfer sheets from one impression cylinder to the other.

34. A rotary printing press including impression cylinders; a` transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon eachv individual .to an impression cylinder and co-extensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual t0 the other impression cylinder is passing thereby and for restoring printing relation thereof with the 4printing cylinder when its own forni is passing thereby; and mechanism for causing a plurality of revolutions ofeach of the impression and transfer cylinders for each revolution of the ,printing cylinder.

35. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder hav.- ing forms thereupon each individual to an impression cylinder and co-eX-tensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each'impression cylinder away from the printing cylinder when the form upon the printing cylinder kthat is individual to vthe other impression' cylinderis passing der which is individual to such ,impression cylinder. -v

36. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon-each individual to an 1 impression cylinder and co-eXtensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that-is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof With the printing cylinder when its own form is passing thereby; mechanism for causing a plurality ofk revolutionsof each of the impression and transfer 'cylinders for each revolution of the printing cylinder; and aA registering mechanism for each impression cylinder one segment upon such impression cylinder and .a complemental segment-at the form upon the printing cylinder :which is individual to such iin-pressioii cylinder.

37. A rotary printing press including iml pression cylinders; va transfer cylinder for transferring sheets from one impression cyl- .inder to the other; a printing cylinder having forms thereupon eachindividual to an impression cylinder and cO-eXtensive with y the sheet supporting or impression portion `of sucli impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is `passing thereby; mechanism for causing a plurality of revolutions of'each of the impression and transfer cylinders for each revolution of theprinting cylinder; and a registering mechanism for each irnpression cylinder onesegment upon such impression cylinder and a complemental segment at the form upon the-printing cylinder which is individual to such impression cylinder,tlie` registering segment at each form upon the printing cylinder being out ofthe -pression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder hav- 'ing forms thereupon each individual to Lan impression cylinder and co-extensive With the sheet su-pporting or impression portion of such impression cylinder; mechanism for moving each impression 4cylinder away from thel printing cylinder when the form upon the printing cylinder' that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof Withthe printing cylinder when its oWn form is passing thereby; and mechanism for causinga plurality of revolutions of each ofthe impression andtransfer cylindersfor4 each revolution of lthe' printing cylinder, the axis of the transfer cylinder being 'maintained substantially a' fixed distance from the' axis of each impression cylinder.

89. A rotary printing press including impression cylinders; atransfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinderr and co-extensive with vthe sheet'su'pporting or impression portion the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder When its own form is passing thereby; mechanism for ycausing a Iplurality of revolutions of each of the iin-pression and transfer cylinders for Veach revolution of the printing cylinder;

and zii-registering mechanism for each inipression cylinder having one element upon each impression cylinder and the other at the foim upon the printing 'cylinder which is individual to suchy impression cylinder, the axis of the tran'sfercylinder beinginaiiitained substantially a fixed distance from the axis of each impression cylinder.

1li).v A rotary printing ypress including impression cylinders; a transfer cylinder for transferring sheets Afrom one impression cylinder to the other; a' printingl cylinder having forms thereupon each individua-l'to an impression cylinder andv` co-extensive with the sheet supportingor impressionA portion of such impression cylinder; mechanism for movingeaclrimpression cylinder away from the printing cylinder ivhenthe form upon the' printing cylinderthat 'is'A individual to the`A- other impression cylinder is passing tlfiereby-r andA for restoringl printing relation thereof with the printingcylindei ivhen its own form-is passing thereby; mechanism for causing a'plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder; and a registering mechanism for each impression cylinder one segment u-pon each impression cylinder and a'complemental segment at the form upon the printing-cylinder which is individual to such impression cylinder, the axis of the transfer cylinder being maintained substantially a fixed distance from the axis of each impression cylinder.

Lll. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a'printing cylinder having foiins thereupon each individual to an impression cylinder and co-extensive With the sheet supporting or impression portion of suoli impression cylinder; mechanism for moving each impression cylinder aivay from the printing cylinder when the form upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder When its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder; and a registering mechanism for each impression cylinder one segment upon such impression cylinder and a complemental segment at the form upon the printing cylinder which is individual to such impression cylinder, the registering segment at each form upon the printing cylinder being out of the plane of operation of the registeringsegment upon the impression cylinder that is not-individual to such form; the axis of the transfer cylinder being maintained substantially a .fixed distance from the axis of each impression cylinder.

42. A rotary printing press including impressioncylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-extensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder aivay from the printing cylinder ivhen the form upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof'ivith theprinting cylinder when its own form is passing thereby: mechanism for causing a plurality ofy revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder, the transfer cvlinder being spaced apart from the second impression `cylinder and means for bringing the sli'eet into position to be taken by the second impression cylinder.

48. A rotary printing press including impression cylinders; a transfer cylinder for 'transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each .individual to an impression cylinder and ycin-extensive with the 'sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing` cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder; a registering mechanism for each impression cylinder having one elelnent upon each impression cylinder and the other at the form upon the printing cylinder which is individual to such impression cylinder, the

of such impression cvlinder; mechanism forv moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual to vthe other impression cylinder is passing thereby and for restoring' printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each ievolutioii of the printing cylinder; a registering mechanism for each impression cylinder one segment upon such impression lcylinder and a compleinental segment at the formy upon the printing cylinder which is individual to such impressionrcylinder, the transfer cylinder being spaced apart from the second impression cylinder; and means for bringing the sheet into position to be taken by the second impression cylinder.

45. A rotary printing press including impression cylinders; a transferY cylinder for transferring sheets from one impression Ycylinder to the other; a printing cylinder having forms thereupon each individual-to an impression cylinder and coeXtensive With the sheet supporting or impression portion of -such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual tothe other impression cylinder isv passing thereby and for Arestoring printing relation thereof with the printing cylinder when itsown form is passing thereby;mechanism for causing a plurality of revolutions of each of the 'impression and transfer cylinders for each revolution of the printing cylinder; a registering mechanism for each impression cylinder one segment upon such impression cylinder and a com-plemental segment at the form upon the printing cylinder which is individual to such impression cylinder, the registering segment at each form upon the printing cylinder being out of the plane of operation of the lregistering segment upon the impression cylinder that is'not individual to such form, the transfer cylinder being `spaced apart from the secondimpression cylinder; and means for bringing the sheet pression cylinder. l

4G. A rotary printing press including impression cylinders; a transfer cylinder for linto position to be taken by the second imtransferring sheets from one impression v cylinder to the other; a 'printing cylinder having forms thereupon yeach individual to an impression cylinder `and co-extensive'with the sheet supporting or impression portion of such impression cylinder; mechanism for 'moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual' to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanismfor' causing a plurali-ty of revolutions of each of the impression and transfer cylinders for cach 'revolution of the printing cylinder, this axis of the transfer cylinder being maintained substantially a iiXed distance from the axis of each impression cylinder, said transfer cylinder and the second impression cylinder having grippers; l and means for moving the grippers of one of these cylinders across the gap between the cylinders to enable the grippers upon the second impression cylinder to take the sheet.

47. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon eachindividual to an impression cylinder and co-eXtensive with the sheet supporting -or impression Vportion of such impression cylinder; mechanism for moving each impression cylinder away from the printing. cylinder whenV the form upon the printingcylinderthatis individual to the" other impression cylinder is passingf thereby and'for restoring printing relation thereof with the printing cylinder when its iown form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder; a registering mechanism for each impression cylinder having one element upon each impression cylinder and the other at the form upon thek printing cylinder which is individual to such impression cylinder7 the axis `ofthe transfer cylinder being maintained substantially a fixed distance from the axis of each impression cylinder, said transfer cylinder and the second impression cylinder having grippers; and means for moving the grippers of one of these cylinders across the gap between the cylinders to enable the grippers upon the second impression cylinder to take the sheet.

48. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder'and co-extensive with the sheet'supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual to the other impression cylinder is 4passing thereby and for restoring printing relation thereof with theprinting cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each ofthe impression and transfer cylinders for each revolution of the printing` cylinder; a registering mechanism for each impression 'cylinder one segmentupon each impression cylinder and a complementalsegment at the form upon the printing cylinder which is individual to such impression cylinder, the axis of the transfer cylinder being maintained substantially a fixed distance from the axis of each impression cylinder, said transfer cylinder and the second impression cylinder havingl grippers; and means for moving` the grippers of one of these cylinders across thev gap between the cylinders to enable the grippers upon the second impression cylinder to 'take-the sheet.

49. A rotary. printing-press including impression cylinders; a transfer cylinder for transferringsheets from one impression cylindento the' other; a printing cylinder havingforms thereupon each individual to an impression cylinder and co-extensive with the sheet supportingor impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing 4cylinder when the form upon theY printing cylinderthatfis individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing aplurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder; a registering mechanism for each impression cylinder one segment upon such impression cylinder and a complemental segmentat the form upon the printing cylinder which is individual to such impression cylinder, the registering segment at each form upon the printing cylinder being out of the plane of operation of the registering segment upon the impression cylinder that is not individual to such form', the axis of the transfer cylinder being maintained substantially a fixed distance from the axis of each impression cylinder, said transfer cylinder and the second impression cylinder having grippers; and means for moving the grippers of one of these cylinders across the gap between the cylinders to enable the grippers upon the second impression cylinder to take the sheet.

50. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from onel impression cylinder to' the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-extensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for cach revolution of the printing cylinder, the axis of the transfer cylinder being maintained substantially a fixed distance from tho'axis of each impression cylinder', said transfer cylinder and the second impression cylinder having grippers; and means for moving the grippers of the transfer cylinder across the gap between the cylinders to enable the grippers of the transfer cylinder to present the sheet undergoing transfer to the grippers of the second impression cylinder.

51. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-extensive with thel sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing 'cylinder when the form upon the printingV cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of eachl of the impression and transfer cylinders for each revolutionk of the lprinting cylinder; a registering mechanism foreach impression cylinder having one element upon each impression cylinder l and the other at the form upon the printing cylinder whichis individual to such impression cylinder, the axis of the transfer cylinder being maintained substantially a fixed distance from the aXis of each impression cylinder, said transfer cylinder and the second impression cylinder having grippers; and means for moving the grippers of the transfer cylinder across the gap between the cylinders to enable the grippers of the transfersl cylinder to present the sheet undergoing` transfer. to the grippers of the second impression cylinder.

, 52. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereuponeach individual to an impression cylinder and4 co-extensive with the sheet supporting ori impression portion of suchimpression cylinder; mechanism for moving each impressioncylinder away from the` printing cylinder when the form upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the vprinting cylinder; a registering mechanism for each impression cylinder one segment upon each impression cylinder and a complemental segment at the form upon the printing cylinder which is individual to such impression cylinder, the -aXis of the transfer cylinder being maintained substantially a iiXed distance from the axis of each impression cylinder, said transfer cylinder and the second impression cylinder having grippers; and means for moving .the grippers of the transfer cylinder across the gap between the cylinders to enable thegrippers of the transfer cylinder to present the sheet undergoing transfer to the grippers of the second impression cylinder.

53. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets. from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and Cro-extensive with the sheet` supporting or impression portion of such impression cylinder; mechimpression cylinder and a coinplemental segment at the form upon the printing cylinder which is individual to such impres-y sion cylinder, the registering segment at each form upon the printing cylinder being out of the plane of operationof the registering segment upon the impression cylinder that is not individual to such form, the aXis of the transfer cylinder being maintained-substantially a Xed distance from the aXis of each impression cylinder, said transfer cylinder and the second impression cylinder having grippers; and means for moving the grippers of the transfer cylinder across the gap between the cylinders to enable the grippers of the transfer cylinder to present the sheet undergoing transfer to the grippers of the second impression cylinder.

54:. A rotary printing press including impression cylinders; atransfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder Vhaving forms thereupon each individual to an impression cylinder and co-eXtensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder awayv from the printing cylinder when the form upon the printing cylinder thatis individual to the other impression cylinder is passing thereby` and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder, the

transfer cylinder being between the impression cylinders; and a shaft co-aXial with the transfer cylinder and in driving relation to all of the aforesaid cylinders.

55. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-eXtensive with the sheet supporting or impression portion of such impression cylinder ;mechanism forv moving 'each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual .to the other impression cylinder is passing thereby and forrestoring printing relation thereof with theprinting cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder, the transfer cylinder being between the impression cylinders; and a shaft co-aXial with the transfer cylinder and in driving relation to all of the aforesaid cylinders and operating the impression cylinders without the intervention of the printing cylinder.

56. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-eXtensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the lform upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution ofthe printing cylinder, the transfer cylinderbeing between the impression cylinders; and a shaft co-aXial with the transfer cylinder and in driving relation with the impression cylinders.

57. A rotary printing press including impression cylinders; a transferycylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-eXtensive with the sheetsupporting or impression portion of suchimp'ression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinderthat is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder, the transfer cylinder being between the impression cylinders; and a shaft co-axial with the transfer cylinder and in driving relation with'the impression cylinders without the intervention ofthe printing cylinder.

58. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-extensive with the sheet supporting or impression portion of suchimpression cylinder; mechanism for moving each impression cylinder Vaway from the printing cylinder when the form upon the printing` cylinder-that is individual-.to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder wheneits own form is passing thereby; mechanism for cansino' a plurality of revolutions of each ofV the impression and transfer cylinders for each revolution of the printing cylinder; the transfer cylinder being be-tweenthe impression cylinders; a shaft co-aXial with the transfer cylinder and in driving relation to all of the aforesaid cylinders; a `gear upon said shaft; and a gear below thisgear for driving the gear that is-upon the shaft.

59. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder having forms thereupon each individual to an impression cylinder and co-extensive with the sheet supporting or impression portion of such impression cylinder; mechanism-for moving each impression cylinder away from the printing cylinder when the formnpon the printing` cylinder that is individual to the other impression cylinder is 'passing thereby and for restoring printing -relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder;` the transfer cylinder being betweeen the impression cylinders; a shaft co-aXial with the transfer cylinder and in driving relation to all of the aforesaid cylinders a'nd operating the impression cylinders without the intervention of the printing cylinder; a gear upon said shaft; anda gear below this gear for driving the gear that is upon the shaft.

GO. A rotary printing press including impression cylinders; a transfer cylinder for transferring sheets from one impression cylinder to the other; a printing cylinder hav- .ing forms thereupon cach-individual to an impression cylinder and co-extensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away-from the printing cylinder when the Aform upon the printing cylinder' that is indiif'idu'al to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder when its own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the print-ing. cylinder; the transfer cylinderbeing between theimpression cylinders; a shaft co-aXi-al with the transfer cylinder and in driving relation impression cylinder and coextensive with the sheet supporting or impression portion of such impression cylinder; mechanism for moving each impression cylinder away from the printing cylinder when the form upon the printing cylinder that is individual to the other impression cylinder is passing thereby and for restoring printing relation thereof with the printing cylinder whenfits own form is passing thereby; mechanism for causing a plurality of revolutions of each of the impression and transfer cylinders for each revolution of the printing cylinder, the transfer cylinder being between the impression cylinders; a shaft co-aXial with the transfer cylinder and in driving relation with the impression cylinders without the intervention of the printing cylinder; a gear upon said shaft; and a gear below this gear for driving the gear that is upon the shaft.

62. A printing press including an impression cylinder; a. transfer cylinder normally spaced apart from the impression cylinder, both cylinders adapted to carry sheets at the same time, the space between the cylinders preventing the sheet upon the transfer4 cylinder from contacting with the freshly printed surface of the sheet upon the impression cylinder; and means for effecting transfer of a sheet from the transfer cylinder to the impression cylinder.

63. A printing press including an impression Cylinder; a transfer cylinder normally spaced apart from the impression cylinder, both cylinders adapted to carry sheets at the same time, the space between the cylinders preventing the sheet upon the transfer cylinderfrom contacting with the freshly printed surface of the sheet upon the impression cylinder; grippers upon said cylinders; and means for moving the grippers upon a cylinder across the gap between the cylinders to enable the grippers upon the impression cylinder to take the sheet.

64. A printing press including a cylinder; a second cylinder normally spaced apart from the first cylinder, both cylinders adapted to carry-sheets at the same time, the space between the cylinders preventing the sheet upon the second cylinder' from contacting with the freshly printed surface of the sheet upon-the first cylinder; and means for effecting transfer of a sheet from the second cylinder `to the first cylinder.

65. A printing press including a cylinder;

a second cylinder. normally spaced apart,

from the first cylinder, both cylinders adapted to carry sheets at the same` time, the space between vthe cylinders preventing the sheet upon the second cylinder from contacting with the freshly printed surface of the sheet upon the first cylinder; grippers upon said cylinders; and means for moving the grippers upon a cylinder across the gap between the cylinders to enable the grippers upon the rst cylinder to take the sheet.

66. A printing press including an impression cylinder; a. transfer cylinder normally spaced apart from the impression cylinder, both cylinders adapted to carry sheets at the-same time, the space between the cylinders preventing the sheet upon the transfer cylinder from contacting with the freshly printed surface of the sheet upon the impression cylinder; grippersfupon said cylinders; and means for moving the grippers upon a cylinder across the gap between the cylinders to enable the grippers upon the impression cylinder to take Vthe sheet and operating to move the sheet across the gap without effecting creepage or backlash of the sheet upon the cylinder from which the sheet is being transferred.

67 A printing press including a cylinder; a second cylinder normally spaced apart from the first cylinder, both cylinders adapted to carry sheets at the same time, the space between the cylinders preventing the sheet upon the second cylinder from contacting with the freshly printed surface o-f the sheet upon the first cylinder; grippers upon said cylinders; and means for moving thegrippers upon a cylinder across the ygap between the cylinders to enable the grippers upon the first cylinder to take the sheet and operating to move the sheet across the gap without effecting creepage or backlash of the 105 sheet upon the cylinder from which the sheet is being transferred.

68. A printing press including an impression cylinder; a transfer cylinder normally spaced apart from the impression cylinder, 110 both cylinders adapted to carry sheets at thel same time, the space between the cylinders preventing the sheet upon the transfer cylinder from contacting with the freshly printed surface of the sheet upon the impression 115 cylinder; grippers upon said cylinders; means for moving the grippers upon a cylinder across the gap between the cylinders to enable the grippers upon the impression cylinder to take the sheet; and meshing gearsk 120 carried Vby said cylinders and co-aXial therewith whose axes are maintained substantially a. fixed distance apart andwhose pitch circles touch at the middle of the gap.

69. A printingluress including a cylinder; 125 a second cylinder normally spaced apartv from the first cylinder, both cylinders adapted to carry sheets at the same time, the space between Ythe cylinders preventing the sheet upon the second cylinder from4 con-.180

Images