US2350505A - Printing press roll structure - Google Patents

Description

June 6, 1944. Go-EBEL ETAL 2,350,505

PRINTING PRESS ROLL STRUCTURES Original Filed Oct. 1, 1956 8 Sheets-Sheet 1 .I'uusurana ear-ya Gaebd,

deceased,

6094992, Admzhastraz'rz'x Ifbe A. WEk-lerzs- MJLQM June 6, 1944. TG. GOEBEL EI'AL 2,350,505

PRINTING PRESS ROLL STRUCTURES Original Filed Oct. 1, 1936 8 Sheets-Sheet 2 INVENTOPS Gear-ye G'oebel, deceased, by

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June 6, I G. GQEBEL ET AL PRINTING PRESS ROLL STRUCTURES Original Filed on; 1,1956 8 Sheets-Sheet s &

June 6, 1944. G. GOEBEL ETAL PRINTING PRESS ROLL STRUCTURES Original Filed Oct. 1, 1936 8 Sheets-Sheet 4 [NVEN TOR6 Goebel, deceased, by

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June 6, 1944. s. GO EBEL ETAL PRINTiNG PRESS ROLL STRUCTURES Original Filed obt. 1, 1936 s Sheets-Sheet 7 ON l $53 .[NVENTOES e Goebel, deae'ac Down ed, by

June 6, 1944. G. GOEBEL ET AL v PRINTING PRESS ROLL STRUCTURES Original, Filed Oct. 1, 1936 8 Sheets-Sheet 8 OFF -4 9 DOWN [NI/EN T096 Gear-9e Go ebei, deceased, by jYeZene GOebeZ, Admz'nzisfratrzk,

Patented June 6, 1944 PRINTING PRESS ROLL STRUCTURE George Goebel, deceased, late of Baltimore, Md.,

by Helene Goebel, administratrix, Baltimore, Md., and Eibe A. Wilckens, Baltimore, Md., assignors to Crown Cork & Seal Company, Inc.," Baltimore, Md., a corporation of New York Original application October 1, 193's, SerialjNo.

' 1940, Serial No. 333,252

12 Claims.

The present invention relates to printing press roll structures, being a division of the application for printing presses of George Goebel and Eibe A. Wilckens, Serial No. 103,592, filed October 1, 1936, issued June 25, 19510, Patent No. 2,205,720.

An important object of the invention is to provide a press which will be capable of high speed production of uniformly printed sheets, all of the mechanisms of the press being so designed that sheets to be printed or lithographed will be properly fed between the cylinders and the cylinders maintainedin proper position for efl'icient printing action.

Still another object of the invention is the provision of fluid pressure operated means to control the position of the ink formrolls, and valves for controlling these means with a wide range of selectivity. I

Another object of the invention is to provide a mounting for the ink form rolls whereby these rolls may be readily adjusted to contact both with the larger inking rolls and the plate cylinder. 7

In order to enable the ink form rolls to be properly positioned with respect to both the ink roll and the plate cylinder, their journals must be movable both radially and circumferentially with regard to the plate cylinder. By the present invention, adjustments in both directions may be readily obtained through a verysimple, mechamsm.

Another object of the invention is to provide a mounting for the smaller rolls of a press which will permit such rolls to be bodily removed or replaced with considerably more facility than has heretofore been possible.

Still another object of the invention is to provide an improved mounting for the inking cyline der of a press.

. In order that the ink on the inking cylinder may be properly distributed upon the various ink rolls, it is necessary to have the inking cylinder reciprocate axially while it is rotating.v This movement has ordinarily been accomplished by having the shaft of the inking cylinder reciprocate as well as rotate in its bearings. The mechanism necessary to accomplish this movement is relatively complicated and readily subject to wear and the reciprocation of the shaft as well as the cylinder necessarily requires greater power than would be the case if the cylinder, alone, were reciprocated upon the shaft. By the present invention, the cylinder is reciprocated upon its shaft, the shaft having only a rotary movement.

Other objects and advantages of the invention Divided and this application May 3,

will be apparent from the following specification and drawings, wherein, T Figure 1 is a' side elevation of a printing press provided with the'present roll structure. Figure 2 is a vertical sectional view through the left hand journals of the plate cylinder and ink cylinder.

Figure 3 is a'disembodied perspective view of the locking andoper'ating' means for the inked form roll hangers.

Figure 4 is a vertical sectional. view through the journals and'operating mechanism at the right hand of the ink'cylinder and plate cylinder; Figure 5 is a detail view showing a portion of the operating mechanism of the ink cylinder.

Figure 6 is a horizontal sectional view through the left hand side frame taken on the line 0-6 ofFigure'L' Figure 7 is an end elevation of the ink form roll throw-out mechanism, portions of the view being in vertical section. Figure8 is a "longitudinal verticalsectional view taken immediately inside the left hand side frame of the press. v Figure 9 is a'sectional view taken on the'line 99 of Figure '7.

Figure 10 is a horizontal sectional view of the automatic valve mech'an'ism taken on the line 10-40 of Figure, 1.1, 1 Figure 11: is a vertical .sectional view on the linell-liof. Figure 10., Figure 12 is a horizontalsectional view taken on the line l2-l2 of Figure 11.

Figure 13 is a diagrammatic view showing, the fluid flowcircuits of the press. cylinder supporting an ink formroll operating mechanism; and Figures 14 to 16v are viewssimilar-to Figure 13 showing the valves .ofthe fluid flow circuits in various operating positions.-

' Summary 0' construction and operation The construction and operation. of the press may be generallydescribed asfollows; Referringto Figure 1,, the numeral 38,indi-.. cates the upper, or. plate cylinder of the press which receives. ink from the ink form rollers generally designated by the numeral lil. Beneath. the plate cylinder there is provided the inter-. mediate or transfer cylinderfdl which is provided with a transfer blanket to receive the impression from the-plate cylinder and print it upon.a sheet as the latter passes through the printing couple formed by thetransfer cylinder 4| and the lower or impression cylinder 42. The sheet to be printed upon is fed from ,the feed table .43

is so positioned, it will force a trip finger 49 downwardly and the sheet trip mechanism 41,-

best shown in Figure 8, will thereby operate inthe normal manner 'to maintain an automatic valve mechanism 48 controlling fluid flow circuits in such position that the fiuid-pressurein such circuits will support or hold the impression cylin der 42 upwardly in contact with the transfer cyl-" ,secured to the right hand side plate 62.

. 8.8 is provided with an eccentric 99 which opcrates a connecting rod 9I having its inner end driving a pinion 84 fixed to the shaft 85 carrying the ink cylinder 80. The above mechanism is provided within the left hand side plate 6| of the press and, as shown in Figure 4, the right hand end of ink cylinder shaft 85 is provided with a worm gear 86 which drives 'a worm wheel 8'! fixed to a shaft 88 journaled ina housing 89 Shaft j ,pivotally connected to a yoke 92 pivoted inter- 'mediate its ends at 93 to a bracket 94 fixed to inder 4 I. However, assuming that a-pair of man-,

ual valves 49 and 50 also included in the fluid flow circuits are in their normal position for the feed table at the proper moment, the trip finger 46 will remain in the upward position shown in Figure 1, with the result that the opera-tionof the trip mechanism. will be varied and the automatic valve mechanism 48 will be actuated to so change the fluid pressure flow that impression cylinder 42 will drop out of contact with the transfer cylinder 4I, thereby preventing the transfer cylinder from printing upon the impression cylinder, as it would do if" the two cylinders were left in normal position with no sheet passing between them.

Actuation of manual valve 49, the impression valve, to off position, will permit theink form rolls 40 to be manually moved either into or out of contact with the plate'cylinder 38, and will cause the impression cylinder 42 and the transfer cylinder 4I to drop with respect to the plate cylinder 38, the impression cylinder dropping a greater distance than the transfer cylinder, thereby avoiding contact with the transfer cylinder, all regardless of whetherisheets are passed through the printing couple. Actuation of manual valve 58, the ink valve, to on position will permit the ink form roll throw-out mechanism to be manually operated regardless of whether sheets are passed through the printing couple. T V 5 7 1 Press cylinder'drive {In the following description of the press, the front is regarded as the feed table end and the. rear is regarded as the side from which printed sheets emerge.

The press includes a base 88 having side plates extending upwardly therefrom, the left hand side plate being designated GI and the right hand side plate being designated by the numeral 62. Power is provided from a motor 63 which acts through a belt or the like 64 to drive a large pulley 65 fixed to a shaft 66 journalled in the right hand side plate 62. The shafts 10 and II of the transfer cylinder 4| and the plate cylinder 38, respectively, are driven from shaft 56 as described in said original application. The plate cylinder 38 is journalled in the upper portion of theside nlates of the press andhas no vertical movement but the shafts 69 and Ill of the impression and transfer cylinders, respectively, are journalled in boxes 12 and I3. respectively, vertically. mov

able in theside plates of the .press through .a

mechanism hereinafter described.

The ink cylinder and the form rollers'asso ciated therewith are driven (Fi ure 2) froma drive gear 8| provided on the shaft 'II of theplate cylinder 38. the vgear 8| meshing with a sm'all pinion 82 journaled on a stud 83, pinion 82 {the side 1 frame 62 vyoke'parry 'blocks engaged in a circumferential groove 96 in a sleeve 91 fixed to the ink cylinder The lower arms 95 of the 80. By this-arrangement, the inking cylinder 88 will be" reciprocated or vibrated on its shaft 85 as it is rotated with the shaft. The upper arms of the yoke v92 carry blocks positioned between spaced flanges on a distributor roller 98 so that the latter may be vibrated and a second circumferential groove 99 is provided on the sleeve 91 to operate other rocking levers, such as I00, to vibrate other form or rider rollers in the usual manner;

The construction of the ink cylinder 88 to permit it to be reciprocated on its shaft 85 as. it rotates is as follows: The sleeve 91 supports one end of the inking cylinder; the other end being supported by a sleeve IOI .of generally similar construction except that it is not provided with any rocker arm operating grooves. Each of the sleeves 9'! and IUI closely embraces the shaft 85 and each sleeve is counter-bored as indicated atv I92 to'receive the outer race I83 of a roller bearing IIJLthe innerraces I05,v being carried on the shaft 85. It will be observedthat the sleeves 91 and NH are further chamberedas indicated at I96 for a purpose hereinafter set forth. The sleeves 9'! and UN are each provided with an annular flange I81 bolted to inwardly extended flanges on the cylinder 80, the inner ends of the sleeves having bolted thereto annular collars I08 provided with flanges I09 bearing againstthe inner edges of the outer races I93 of the roller bearings I94. A ring H9 is positioned within eachcollar I08, the inner edges of the rings bearing. against shoulders II I formed by a central enlargement of shaft 85 and the opposite edges of the rings bearing against the inner races I05, Yokes II? extend inwardly. from the inner faces ofv the collars I98, the inside surfaces of the yokes embracing rollers H3 rotatable on pins II4 secured in the shaft 185, as shown in Figure 5..

By the above arrangement, when the sleeve 9'! is moved lengthwise of shaft 85 by the action of the eccentrioally operated connecting rod 9!, the

ink cylinder 80 and its supporting sleeves .91 and I0 will be given a corresponding movement, the cylinder moving with respect to the shaft 85 while rotatin upon the roller bearings I04, the outer races I83 of the bearings moving relative to the inner races I05 upon the balls of the bear ing. The desired axial or rectilinear movement of the cylinder with respect to the shaft will be the cylinder and various rolls while being rotated.

The above arrangement whereby the cylinder 80 is vibrated upon its shaft 85, instead of the usual arrangement of having the shaft vibrated with the cylinder eliminates the necessity of a substantial portion of the driving power which has heretofore been necessary to vibrate the relatively heavy cylinder shaft with the cylinder and eliminates the sliding friction in the driving gears.

The dampening mechanism II (Figure l) of the present press is of the usual construction and includes the ductor roll 5I which transfers water from the fountain roll I I 6 to a form roller II I which in turn places the water upon a pair of dampening or water rolls H8. The mechanism for oscillating the water ductor roll 5| is described in our application for printing press dampening roll control filed of even date herewith, which issued as Patent No. 2,310,363, on February 9, 1943, and which is also a division of said original Goebel and Wilckens application.

Roll supporting mechanism Figure 9 best illustrates the manner in which various rolls to supply ink or water to the press couple are mounted so that they may be readily removed. Figure 9 shows the mounting as applied to one of the ink form rolls 4!). It will be observed from this figure that the ends I84 of the roll are carried in anti-friction bearings I85, the bearing at one end of the roll, the end at the right hand side of the press, is carried in a bracket i92a of generally cup-shaped form, the other bearing I85 being carried in a holder I 86 mounted in a split bracket I92, both brackets L92 and I92a being mounted in socket members I93 hereinafter described and which are secured to hangers I94 pivotally hung from the upper portion of the press in a manner hereinafter set forth. The split bracket I92 is normally clamped about the holder I89 by means of a bolt I81. When it is desired to remove a roll such as 49, it is only necessary to loosen the bolt I81 so that the holder I 86 may be withdrawn or moved to the left in Figure 9, releasing the left hand end of roll 49 so that the right hand end may be withdrawn from the bearing I85 in bracket I92a.

The form roller throw-out mechanism The ink form rolls 49 provided for the purpose of transferring ink from the large form roll I90 to the plate cylinder 38 are arranged for circumferential and radial adjustment with respect to the plate cylinder by the construction of the brackets I92 and IBM referred to above and the manner in which the latter are supported on the hangers I94 swung from a collar I95 (Figures 2 and 4) secured to each side frame of the press in alignment with the ink cylinder shaft 85.

The inner portion of each bracket I92 is squared as indicated at I99 to fit between shoulders 299 on a socket member I93, thereby obviating possibility of the bracket turning with respect to the socket member. A stud ZiiI projects into each socket from the corresponding bracket and the extreme inner end of the stud is reduced and threaded as indicated at 2am and carries a nut 292 which is positioned within a cut-out 293 in the socket I93. It will thus be obvious that rotation of the nut 292 will move the bracket I92 radially of the plate cylinder 38.

In order to permit each form roller 40 to be adjusted 'circumferentially of the plate cylinder 38, each socket member I93 is provided on its rear face with a shoulder 205 of arcuate form which engages an arcuate groove 206 in the outer face of the corresponding hanger I94. Studs 208 are secured in apertures spaced in the arcuate grooves 296 and each stud carries a sleeve 209 provided with a shoulder 2I9 (Figure 1) which bears upon the outer face of the corresponding socket member I93, thereby retaining the socket member in the groove 296 and in engagement with the corresponding hanger 894. The periphery ZII of the body portion of the sleeve 20!! is eccentric with respect to the bore of the sleeve which fits the corresponding stud and rotation of the sleeve by a tool engaged in pockets of its shoulder 259 will therefore cause the socket to be moved along the groove, 298, resulting in adjustment of that ink form roll 49 circumferentially of the plate cylinder. Nuts ZIZ hold the eccentrics locked,

As indicated in Figure 9, the rlght-hand and cup-shaped brackets 32a supported in the socket members 593 and upon the hangers I34 in the same manner as the left-hand brackets I92.

It is necessary in the operation of the press to have the ink form rollers in proper contact with both the periphery of the plate cylinder and the periphery of the large form rolls such as I99 and this can best be obtained through provision for both radial and circumferential adjustment of the form rolls with respect to the plate cylinder.

As indicated in Figure l, dampening form rolls H8 are mounted similarly to the ink form rolls but in arcuate grooves in the outer faces of brackets 2i3 pivoted at 2I3a to each side frame of the press, the brackets 253 being swung outwardly to move the dampening rolls from the plate cylinder by an eccentric 214 provided with an operating handle 2I4a.

When it is desiredto perform any operation upon the plate cylinder preliminary to running of the press, it is desirable to have the ink form rolls d9 moved out of engagement with the plate cylinder. To obtain this action, the hangers I94 at each side of the press, being hung uponthe sleeves I95 (Figures 2 and 4) may be swung apart at their lower ends. The hand operating means for this purpose is best shown in Figures 6- and 7 and comprises a hand lever 2i5, one on each side of the press, each lever being mounted on a stud 2I6 fixed in a plate 2Il overlying the corresponding end of the shaft 'II of the plate cylinder 38. Each lever 2I5 has a collar 2I8 formed integrally therewith which fits upon the pin 2H5, the collar 2! having its peripheral surface provided with two rises 229 which are adapted to act upon rollers 22I rotatably mounted on studs 222 fixed to the lower inner corners of the hangers I9 5. It will be apparent, from this that swinging movementof the levers 2I5 will cause the rises 229 to force the rollers 22I apart, thereby swinging the hangers outwardly so that the ink form roll 49 will be out of contact with the plate cylinder 38. The ends of the studs 222 are partially cut away to provide inclined faces 223, as shown in Figures 5, 6 and 7, and the outer portion of the sleeve 2I8 is slotted to carry keepers 224 adapted to respectively engage the inclined faces 223 of the studs 222 to lock the hangers in inward position. The kepers 224 are adjustable with respect to the collar ZIS to permit the keepers to draw the hangers tightly together, each keeper being provided with a guide slot 226 through which a machine screw extends and being movable by means of an adjusting bolt 22! in an offset extension at its inner end which bolt .A lock screw engages each bolt 22'!- to hold it in adjusted position.

The. levers H5 at each side of the press are connected by a shaft 230 rotatable in the frames of the press, each end of the shaft having a lever 23! fixed thereto, the outer ends of these levers being joined to the throw-out levers 245 by links 332 so that operation of one lever will cause the other lever to be similarly actuated. As will'be hereinafter described, the throwout levers 215 are also arranged to be operated by fluid pressure to swing the hangers either inwardly or'outwardly.

Separating movement of the hangers I94 will actuate a bell crank mechanism l94a.(Figures 1 and 7) to throw out the driving pawl connection to the ink fountain 80a in well-known manner.

Referring to Figures 1 and 8, the shafts I0 and 69 of the transfer cylinder and impression cylinder 42, respectively, are supported in boxes 13 and 12, respectively, which are vertically movable in guide openings 3| 0 (Figure 8) in each side frame of the press.

As described in said Patent No. 2,205,720, issued on said original application, Serial No. 103,592, the boxes 22 at each end of the shaft 69 of the impression cylinder are supported upon pistons 325 mounted in cylinders 3l9 carried in the side frames of the press. Also, the boxes 13 at each end of the shaft of the transfer cylinder 41 are supported upon pistons 335 mounted in cylinders 3136 supported in the side frames.

The position of the pistons 325 and 335 and hence of the impression and transfer cylinders is controlled by fluid pressure controlled by the valve mechanism 48, the actuation of the valve mechanism 48 in turn being controlled by trip linger 45 with which sheets contact, a trip lever 34! and a trip lever cam 35I carried on a cam shaft 442, all as described in detail in Patent No. 2,205,720, issued on said original application Serial No. 103,592.

The automatic valve mechanism 48 for controlling the position of the press cylinders with respect to each other is best shown in Figures 10 to 12.

The valve mechanism 48 includes the housing 363 carried on a standard 40! fixed to the press frame adjacent the left side frame 6|. As shown in Figure 10, the housing'363 is provided with four valve chambers 402, 403, 454 and 405 closed at their forward or outer ends by caps 405 and each cylinder having a bore 40'! extending inwardly therefrom in which a valve stem of a tappet valve for that chamber may move, the stem of the valve preferably being guided in the bore by a sleeve 408. The valves of the cylinders 402 to 405v are respectively designated by the numerals 4H], 4, M2 and M3 and each valve is tended to its seat by a spring 4i4 positioned between the head of the valve and the inner surface of the corresponding valve chamber cap 406. The valves are adapted to be operated by tappets 4!! freely mounted on a small shaft 418 fixed to the rear side of the standard 401, one of the tappets 4!! being provided for each valve. The tappets are provided at their upper ends with adjusting set screws 4 I 9 to contact with the outer ends of the valve stems and the lower ends of the tappets carry rollers 420 arranged to bear upon cam sectors 42! fixed to the rock shaft 394 which carries therocker arm 302, one cam being provided for each pair of tappets. Each cam sector includes a low portion 423 and a high portion 424, the high portions of the cams being indented as shown in Figure 11 so that the rollers 420 will be firmly engaged by the high portions of the cams.

As is shown in Figures 11 and 12, the four cam sectors 42! are so arranged with respect to each other that when the tappets of valves 4H] and M2 have low portions 423 of their corresponding cam sectors opposite them, permitting these valvesto close, high portions 424 of the other two cam sectors will be opposite the tappets of the valves 4 and M3, holding these two valves open. The reverse will be true when rock shaft 364 is rocked to its opposite position through the movement of rocker arm 362 by the sheet trip mechanism in the manner hereinbefore described.

When valve 4 is open, valve chamber 403 will communicate with valve chamber 402 through a port 428. When valve M0 is open, the corresponding valve chamber 402 will be placed in communication with the atmosphere through a port 429. Valve chamber 404 communicates with the adjacent outer valve chamber 405 through a port 430 when valve 412 is open, and when valve M3 is open, valve chamber405 will be placed in communication with the atmosphere through a port 43 I.

Compressed air is supplied to the housing 363 from a pump or other suitable source of pressure through a line 432 receiving flow from a supply main 433, line 432 opening to the upper portion of the housing through a port 434 communicating with the two central valve chambers 403 and 404.

As shown in Figure 13, the automatic valve mechanism 48 communicates with the various pressure chambers of the press through manual valve mechanism 49 and 50, a flow line 436 extending from valve chamber 405 to the manual ink valve 50, the line 436 opening to the planar valve seat 431 of the valve through a port 438. A flow line 439 extends from valve chamber 402 to the manual impression valve 49, line 439 opening to the planar valve seat of disc valve 49 through a port 440.

Valve 49 is manually operated by means of a radially extending handle 443.

Ink valve disc 50 is also rotatable by means of a handle 448. The seats for the valves 49 and 50 are bolted in apertures in the side frame 6| as shown in Figure l and valve discs of the valves are provided with a series of passages opening to their seat faces as indicated in Figures 13 to 16. The arrangement of these passages as well as the arrangement of the ports in the seats of the two valves will be described in connection with the operation of the valves set forth below.

Flo w circuitsnormal or "automatic" operation of press v In the normal operation of the press, it is desirable to have the flow passages in such communication with the source of pressure that both the transfer cylinder 4| and the impression cylinder 42 will be in upward position and the ink form rollers 40 will be in contact with the plate cylinder 38, but with the passages further so arranged that if a sheet is not presented on the feed table 43 at the proper moment, the automatic valve mechanism 48 will be actuated to cause the impression cylinder 42 to be dropped from the transfer cylinder4| and the ink form rollers 40 moved from the, plate cylinder 38. The arrangement of the manual valves 49 and 50 to attain this operation and the corresponding position of the various valves of the automatic valve mechanism 48 which will then be maintained so long as sheets are passing through the press at the proper time is illustrated in Fig- .ure13. I

, Referring to Figure 13, it will be observed that the manual impression valve 49 is at on or at left hand position and that the ink valve 50.is at "automatic or left hand position. At this time, so long as sheets are properly positioned on trip finger 46 of the feed table, the cams 42| will be positioned as indicated in Fig- ,ures 10 to 12, and as diagrammatically indicated in Figure 13, sothat automatic valves M and M2 will be-closed, while the other two automatic valves 4 and M3 will be opened. That is, the high points 424 of the cams 42| operating to valves 4| I and 4| 3 will be opposite the tappets of these two valves, while thecams controlling the other two valves will have their low points 423 opposite those valve tappets. With this arrangement, and with sheets properly arriving upon the feed table 43, air will flow to the automatic valve mechanism 48 from the supply main 433 directly through the line 435 to a port 450 in the seat of manual valve 49 and through a passage 45| in the disc 49a back to a port 452 leading to a line 453 communicating with the chamber 336 in which the piston 335 supporting the journal box 13 of transfer cylinder 4| is carried, thereby holding the transfer cylinder in upward position and against the plate cylinder 38.

At the same time, pressure will also flow from the supply main 433 and thence into the automatic valve housing 363 through line 432 and the port 434 which opens to the two central valve chambers 403 and 404. Since valve 4H is open and valve M2 is closed, pressure from the line 432 can only flow past the valve 4| and through the port 428 opening to valve chamber 402. Valve 4|0 being closed, this pressure will flow from .thatchamber through a line 439 to port 440 in vthe seat of manual impression valve 49. With disc valve 49a in the on position referred to, this pressure will flow through a passage 451 in .valve 49a and through a port 458 in the valve seat to a line 459 which leads to the chamber 3|9 in which the piston 32| beneath the impres- Sion cylinder journal box 12 is carried, thereby holding the impression cylinder 42 in upward position and in contact with the transfer cylinder 4|.

Pressure will also'fl ow from the line 459 last referred to and through a branch line 465 to a port 466 in the valve seat of the ink valve 50 and through an aligned passage 461 in the ink jdisk valve 50a, through a port 468 in the valve seat and thence through a line 469 to a chamber 410 formed in a casting 2|5a (Figures 6 and '7) fixed to the press side frame 6| beneath the form roller hand operating lever 2|5 and in which chamber there is positioned a piston 41| of aplunger 412 to which the operating handle 2|5is connected by a pin 413 carried intermedi- -ate the length of the plunger 412. The opposite -end of the plunger 412 has a piston face 415 provided thereon which operates in a chamber 416 and also formed in casting 215a and with which a line 411 communicates. The opposite end of line 411 is connected to a port418 in the valve seat of impression valve 49 which at this time is aligned with one end of a passage 419 in the valve discv 49a, the opposite end of .the passage being aligned with a vport 480 having a line 48| connected thereto extending to a port 482 in the seat of ink valve 50, the latter port being aligned as shown in Figure 13 with a passage 483 in the disc of ink valve 50. Theop- ,posite end of passage 483 is in communication with the valve seat port 438 with which the line 436 communicates, the opposite endof line 436 opening to the valve chamber 404 of the automatic valve mechanism 48. Since valve .4l3 of this valve chamber is open, valve chamber 404 is in communication with. the atmosphere through the port 43!. Thus, no pressure is present .in form roller operating pressure chamber 416, and pressure being present in the opposite chamber 410, the ink form rolls 40 will be held locked in contact with the plate cylinder 38 by the locking elements 224 shown in Figure '1.

As shown in Figure 13, a line 4590. runs from line 459 to the pressure chamber 3|9 beneath the right hand end of impression cylinder 42; a line 453a extends from line 453 to the right hand chamber beneath transfer cylinder 4|; and lines 469a and 411a extend from'ink roll pressure operating chambers 410 and 416, respectively, to the corresponding chambers on the right hand side of the press.

By the above arrangement, the form rollers 40 will be held in contact with the plate cylinder 30 by the pressure exerted in-pressure chamber 410, the transfer cylinder 4| will be held upwardly by the pressure in chamber 336, and impression cylinder 42 will be held upwardly by the pressure in chamber 3|9. Should some, object other than a sheet, for example, a wrench, move between the cylinders 4| and 42, the. impression cylinder 42 will move downwardly against the action of the spring 328 without varying the pressure flow.

The valves and pressure flow will remain as described above in connection with Figure 13 so long as a sheet is presented at the proper moment upon the trip finger 46 on feed table 43. However, should no sheet be present upon the trip finger 46 at the proper moment, the trip mechanism 41 will be actuated in the manner described in said original application to such position that the tappet cams 42| will swing upwardly from their position as shown in Figure 11 to permit the valves 4 and M3 to close and valves M0 and M2 to open as diagrammatically indicated in Figure 14. Referring to Figure 14, with the valves of the automatic valve mechanism now in the position there illustrated, pressure will be maintained in pressure chamber 336 beneath piston 335 which supports the transfer cylinder 4|, be-

whereinthe valve M0 is now open to the atmosphere through port 429 and valve 4 of chamber 403, being closed, will prevent pressure flow to chamber 402. The ink form rollers 4| will be moved away from the plate cylinder 38, since the operating handle 2| 5 will be movedrearwardly (to the left with respect to Figures Band 14-). by the following flow circuit arrangement, I

The opening of valve 4|2-in' chamber 404 will permit pressure to flow past that valve through passage 430 and into chamber-495. Valve 4l3 now being closed, this pressure will-move through line 436 to port 438 of "ink valve 56 and through passage 483 in the valve disc of that valve to line 481. From line 481, the pressure will flow through port 480 of impression valve 49, passage 419 and port 418 to line 411, whence the pressure will flow into chamber 416, moving the valve operating lever 215 rearwardlyito the left in Figure '1), thereby rotating the cam 220 to move the hangers I94 apart, therebymoving the ink form rolls 40 away from the plate cylinder 38. The movement of. operating. handle 2l5 described above'will be permitted due to the fact that pressure is simultaneously relieved from chamber 410 through line 469, passage 461 .in ink valve disc 50a, and thence through 1ine'465, line 459, passage 451 of impression valve disc' 49a, line-439, and valve chamber 402, now open to the atmosphere a described above. 1 I

Should a sheet be presented upon the trip finger 46 on the next cycle'of operation of the trip mechanism 41, the sheet trip mechanism will rock rocker arm 362 back tothe position shown in .Figure 8, thereby moving the cams 42l back to the position shown in Figure 22, thereby changing the position of the valves in automatic valve mechanism 48 back to the position diagrammatically shown in Figure 13, so that the fluid flow will be as in that figure, thereby immediately re- Flow-circuits -transfer and limpression cylinders held down-ink form rolls manually operable Should the operator desire to drop'the transfer cylinder 41 and the impression cylinder 42 and'hold them downwardly during turning over of the press cylinders, and regardless of whether 'or not a sheet is positioned upon the trip finger 46 at the proper'moment, the impression valve 49 may be moved to the position shown in Figure 15, wherein it is at off or at right hand'position.

In this position of the valve, the pressure in chamber 3I9 which holds piston '32] and impression cylinder 42 upwardly will be exhausted through line 459, seat port 458 of impression valve 49, passage 451 of valve disc 49a and'exhaust port 45 (to the atmosphere) in the valve seat.

The pressure in chamber 336 which holds the piston 335 and transfer cylinder 4| upwardly will also be exhausted to atmosphere through line 453, seat port 452 of impression valve 49, valve 'discpassage 451 and exhaust port 490. Pressure line 435 will be closed by-reason'of the fact that a blank portion of the face-of valve disc 49a will be moved'opposite the valve seat end of that line. The valve seat end of pressure line 439 will also now be opposite a blank portion'of. valve disc 49a so that a change inthe position of the valves of automatic valve mechanism 48 will not affect the position-of the transfer cylinder M and the 1mnression cylinder 42.

' Pressure will be released from the pressure chamber 416 associated with the ink form roller operating lever 215, this exhaust flowing through line 411, valve seat port 418 of impression valve 49, passage 419 of valve disc 49a and exhaust port 492 of the valve seat.- The end of line 481 which enters the valve seat of impression" valve 49 will be opposite a blank portion of the face of the valve disc 49a .so that no change in the position of the valves of automatic valve mechanism 48 will affect the position of form roll operating handle 215. Since the pressure chamber 410 also associated with the form roller operating lever 215 is now in communication with the atmosphere through line 469, passage 461 of Ink valve 50, lines 465 and 459, passage 451 and exhaust port 49l of impression valve 49, the ink form roll operating lever 2l5 is under no pressure whatever and may be operated by hand to whatever position is desirable in the turning over of the press cylinders.

Flow eircuitscylzlnders zip-ink form rolls on In some instances, it is desirable to have the hand lever I25 associated with the ink form rolls 40 free for manual operation, and while the cylinders 4| and 42 are in upward position. To operate the press in this manner, ink valve disc 50a would be moved to the on or right hand position as shown in Figure 16. With the valve in this position, if impression valve 49 is in on or normal running position, the chamber 416 associated with form roller operating lever 215 will be in communication with the atmosphere through line 411, impression valve disc passage 419, line 48I, and ink valve disc passage 493, now open to atmosphere through exhaust port 484. Chamber 410 will communicate with the atmosphere through line 469, ink" valve disc passage 461, and exhaust port 495 in the ink valve seat. This position of the ink form rolls, with the transfer and impression cylinders up, is desirable during the performance of numerous preliminary operations upon the press.

In order to move both the transfer cylinder 4| and the impression cylinder 42 downwardly and to have the operating lever 215 free for manual operation, the handle of the impression valve 49 and the handle of the ink" valve 50 are moved to the right; In this position, all of the lines communicating with chambers 319, 336, 410 and 416 will be open to the atmosphereso that no pressure will be present in any of these chambers.

It will be understood that the invention is not limited to the details of construction shown in the drawings and that the examples of the use of the machine and mechanisms which have been given do not include all of the uses of which they are capable, and that the phraseology employed in the specification is for the purpose of description and not of limitation.

Matter disclosed but not claimed herein may be claimed either in said Patent No. 2,205,720, issued on said original Goebel and Wilckens application, Serial No. 103,592 or in Patent No. 2,310, 363, issued Feb. 9, 1943 on ourapplication for Printing pressldampening roll control, Serial No. 333,253, filed of even date herewith, which is also a division of said original applicati'on. i

.We claim:

' '1. Thecombination in a printing press including a printing couple, of a roll to deliver ink to an element of said couple, and fluid pressure operated means to control the position of said roll with respect to said couple.

2. The combination in a printing press including a printing couple, of a roll to deliver ink to an element of said couple, fluid pressure operated means to control the position of said roll with respect to said couple, means to deliver sheets to said couple, and valve mechanism operable in accordance with the delivery of sheets to said couple to control pressure flow to said means.

3. The combination in a printing press including a printing couple, of a roll to deliver ink to an element of said couple, fluid pressure operated means to control the position of said roll with respect to said couple, means to deliver sheets to said couple, automatic valve mechanism operable in accordance with the delivery of sheets to said couple to control pressure flow to said means, and a manual valve to selectively control the operation of said automatic valve mechanism.

4. The combination in a printing press including a printing couple, of an ink roll, means to support said roll in contact with an element of said printing couple, fluid pressure operated means to control the position of said last-named means, said fluid pressure operated means being disconnectable to permit manual operation of said first-named means.

5. The combination in a printing press, of a printing couple, an inking cylinder to deliver ink to said printing couple, a cylinder shaft, a housing adjacent each end of said shaft to support said cylinder, an anti-friction bearing positioned within each of said housings to support the cylinder for axial movement on said shaft, cooperating means including rotatable elements on each of said housings and said shaft to guide said cylinder during axial movement of the latter with respect to said shaft, and means to rotate said shaft and move said cylinder axially thereofduring such rotation.

6. The combination in a printing press, of a printing couple, a roll to deliver ink to an element of said couple, a hanger for said roll, cam means to move said hanger and roll from said element, means to lock said hanger and roll against said element, and means to operate said cam means by fluid pressure.

7. The combination in a printing press, of side frames, a printing couple, a plurality of ink rolls, a pair of oppositely disposed hangers pivoted to said frame to support said rolls, cam means to control the position of said hangers and rolls with respect to said printing couple, and a pressure cylinder and piston, one of which is fixed to said frame and the other of which is operatively connected to said last-named means to operate the same.

8. The combination in a printing press including frame elements, a printing couple, and a roll to deliver ink to a cylinder of said couple, of means to adjust the position of said roll comprising a socket member, means to support said socket member on the frame element and move the same circumferentially of the cylinder of the printing couple, and means to move said roll longitudinally of said socket member and radially of the printing couple cylinder.

9. The combination in a printing press in cluding a printing couple and a roll to deliver ink to a cylinder of the couple, of means to adjust the position of the roll with respect to the cylinder comprising a frame member having an arcuate groove therein extending circumferentially with respect to the cylinder, a socket member engaged in the groove, means to support said socket member on said frame member and to move the same along the groove, said socket member having a bore therein extending substantially at right angles to the groove, a roll carrying bracket in the bore, and means to move said bracket in the bore to move the roll radially of the cylinder.

10. The combination in a printing press, of a frame, a printing couple, an inking cylinder to deliver ink to said printing couple, a shaft on which said cylinder is mounted, means to rotate said shaft, a worm gear fixed to said shaft, a worm wheel meshing with said worm gear, an eccentric on said worm wheel, a rocker arm pivoted on said frame and operated from said eccentric, said rocker arm engaging said inking cylinder to cause the latter to be reciprocated on said shaft as the shaft is rotated.

11. The combination in a printing press including a printing couple and a roll to deliver ink to a cylinder of the couple, of means to adjust the position of the roll with respect to the cylinder comprising a frame member having an arcuate groove therein extending circumferentially with respect to the cylinder, a socket member engaged in the groove, means to support said socket member on said frame member and includin an eccentric to move the same along the groove, said socket member having a bore therein extending substantially at right angles to the groove, a roll carrying bracket in the bore, and means to move said bracket in the bore to move the roll radially of the cylinder.

12. The combination in a printing press including side frames, of a roll supporting structure comprising a socket member fixed with respect to one side frame to receive one end of the roll, a socket member having a limited sliding movement in the other side frame along a line axially of the roll and adapted to support the adjacent end of the roll when in inward limit position and to be free of the adjacent end of the roll in its outer limit position, and means to hold said second socket member in such inward position.

HELENE GOEBEL,

Adminisiratria: of George Goebel, Deceased.

EIBE A. WILCKENS.

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