US1660068A - Printing machinery - Google Patents

Description

Feb. 21, 1928.

L- W. CLAYBOURN PRINTING MACHINERY Filed May :5. 1926 10 Sheet-Sheet 1 IN VE TOR.

ATTORNEY.

Feb. 21, 1928. 1,660,068

' 1.. w. CLAYBOURN PRINTING MACHINERY I INVENTOR.

Feb. 21, 1928.

L. w. CLAYBOURN PRINTING MACHINERY Filed May}. 1926 10' Sheets-Sheet 3 INVENTOR.

A TTORNEY.

Feb. 21, 1928.

1.. w. CLAYBOURN- PRINTING MACHINERY Filed May 5. 1926 10 Sheets-Sheet 4 I N V EN TOR. 521%- I A TTORNE Y.

10 Sheets-Sheet 5 L. W. CLAYBOURN PRINTING MACHINERY Filed May 5. 1926 Feb. 21, 1928.

3&

A TTORNE Y.

Feb. 21, 1928.

- 1,660,068 L. w. CLAYBOURN PRINTING MACHINERY Filed May s. 1926 10 Sheets-Sheet 7 INVENTOR.

ATTORNEY.

'Feb. 21, 1928. 1,660,068

L. w. QLAYBOURN PRINTING MACHINERY Filed May 5, 1926 10 Sheets-Sheet 8 5- M ATTORNEY.

Feb. 21, 1928. 6

1.. w. CLAYBOURN PRI NTING MACHINERY Filed May 5, 1926 10 Sheetsfiheet 9 flu ""H fl il INVENTOR..

ATTORNEY.

Feb. 21, 1928. 1,660,068

L. W. CLAYBOURN PRINTING MACHINERY Filed May 5, 1926 10 Sheets-Sheet l0 In A! 245 A6 INVENTOR.

A TTORN E Y.

Patented Feb. 21, 1928.

PATENT OFFICE.

LESLIE W. CLAYBOURN, OF MILWAUKEE, WISCONSIN.

PRINTING MACHINERY.

Application filed May 3, 1926. Serial No .-108,198.

My invention relates to printing ma,- chinery, especially to that character of printing presses employed'in taking so-called proofs.

It isthe object of my invention to provide novel means for causing coactive relation between the bed and the tympan cylinder during the printing operation, and separation between said elements during idle passage therebetween; further, to provide novel means for adjusting the distance between said elements of the printingcouple for obtaining proper desired printing pressure during the printing; further, to provide novel means for controlling the reciprocations of the reciprocating member of the printing couple; further, to provide novel tripping means for controlling the distance between the members of the printing couple for on-impression relation and for off-1mpression relation; further, to provide novel means to control the stopping of the reciprocating member at the ends of its paths of travet; and, further, to provide novel means for guiding the reciprocating bed of the printing couple.

The invention will be further readily understood from the following descriptionand claims, and from the drawings, in which latter:

Fig. 1 is a side elevation of my improved device, the paper table being shown in norma. position in full lines and in raised position in dotted lines and partly broken away.

Fig. 2 1s a plan vlew of my lmproved device, partly broken away.

Fig. 3 is a rear end elevation of my improved device, partly broken away.

Fig. 4 is a side elevation, partly broken away, showing the gear side ofthe machine, the gearing being partly in section in the plane-of the line H of Fig. 3.

Fig. 5 is a detail of the brake mechanism, partly broken away, and partly in sectionon structure 32, shown as an lntegral'castlng,

the line 5 5 of Fig. 12.

Fig. 6 is across-sectional detail View of the brake, taken in the plane of the line 6-6 of Fig. 5.

Fig. 7 is a central longitudinal section, taken on the line 7'? of Fig. 2, partly broken away.

Fig. 8 is a side elevation of a detail of the end of the feed table and the parts thereon, coacting with the impression cylinder.

Fig. 9 is a cross-sectional detail of. the same, taken on the line 99 of Fig. 8.

Fig. 10 is a cross-sectional detail "of the I same, taken on the line 1010 of Fig. 8.

Fig. 11 is a cross-section of my improved device, taken on the line 11-11 of Fig. 1.

Fig. 12 is across-section of my improved device, taken on the line 1212 of Fig. 1.

Fig. 13 is a plan view of my improved device, with the reciprocating bed and impression cylinder removed.

Fig. 14 is a side elevation, partly broken ig. 17 is a similar view of the same, showing the control means in actuated position.

Fig. 18 is a plan detail of the knock-out means for the control of the bed movements.

Fig. 19 is a cross-section of a detail of the same, taken in the planeof the line 19-19 of Fig. 16. a a

Fig. 20 is a vertical section, taken on the line 2020 of Fig. 11, partly broken awa showing the gripper control and the knoc out control when the cylinder and bed are in starting'or normal positions. 7

Fig. 21 is a similar view, showmg the bed at its opposite limit of movement:

The frame 31 comprises a rigid runway printing couple, the member 36 being shown as a reciprocating bed and the member 37 as a cylinder. The bed is shown as a ilorrn supporting bed, and the cylinder as a tympan cylinder. The bed is shown as a rigid integral casting thoroughly braced by.

lengthwise ribs 38 and crosswise ribs 39.

The frame is provided with runways l1 and the bed with runways 4.2, between which roller cages l3 are located, The bed is arranged to be reciprocated on the rollers oil said roller cages, with relation to the tympan cylinder.

Lateral positioning of the bed is obtained by means oil a guide 4A, shown depending from the bed, which coacts with the guide way 425 on the frame, and guides l6, 47.. The guides 16, 4:7, are adjustable with relation to the guideway to for adjusting the width oi? the guiding space between the guideway as, and the guides l6, 47.

This adjustment is exemplified as accomplished by means of bolts 51 which are adjustably threaded into the frame, as shown at 52. The heads of the bolt coactwith the guides 46, 4:7. Jamcnuts 53 lock the bolts in adjusted positions. Bolts 54 are threaded in the frame, as shown at 55, and extend through slots 56 in the adjustable guides at, 4:7, for clamping said guides in adjusted These adjustments position the.

positions. reciprocating bed in lateral directions so as to cause the bed to travel in straight lines back and forth. The guides i6, 4&7, and their adjusting means, are shown located in a recess 57 in the frame. (See Figs. 11

The bed has a reel; 61 fixed to its under side. A pinion 62 meshes with the rack, and is fined to a shaft 63, journaled in bearings lid in the main frame. The rack and pinion and lateral guides and adjusting till means therefor are located in substantially the middle portion of the width or the frame and bed. I

The bed is provided with a form supporting surface 65, for supporting a form to,

secured thereto in suitable manner between cross-strips 6'2, 68. The bed be pro- -application as comprising a central roller 2Z2, iiorm rollers it coasting therewith, and

a distributor roller 74: which also meets with the central inking roller. The inking roller i2 is fixed to a shaft 75 iournaled in bearings 76 in the inker trams. Gears 77, 78, are ro-tatively loose on this shaft, but fixed in axial directions thereon in suitable manher. A clutch-collar Z9 is slidable endwise on the shaft and rotates with the shaft.

"Clutches 81, 82, are located respectively between. the clutch-collar and the respective gears 77, 78. A iork 83 is received in an annular groove 84 in the clutch-collar. The fork is arranged to be moved by an endwise movable rod 85, provided with a knob 86, and slidable in bearings 87 in the inker frame. A gear 88 is tired to a shaft 89 journaled in the inher frame, and meshes with the gear 77, A gear 90 is also fixed to this shaft, and meshes with a gear 91 fixed to a shaft 92 journaled in the inlrer frame.

W hen the clutch-faces of the clutch 81 are in engagement, the gear '2? is rotatively connected with the shaft 75, thereby connecting the train of gears 7?, 88, 90 and 91 with said shalt.

The-gear 78 meshes with a gear 95 fixed to a shaft 96 iournaled in bearings in the inlrer frame. Gears 97, 9%, are also fixed to this'shaft, and mesh with racks 99, 100, extending lengthwise of the path of travel of the reciprocating bed, these racks being lined to the frame of the machine.

A crank handle 101 is arranged to be deviding the handle with a socket 102 received over the reduced end of said shalt, a pin 103 in the socket of said handle being received in a slot 104:- in the end of said shaft. This construction enables the handle to be readily attached to said shalt for turning said shaft and to be readily removed there from. The cylinder is provided with a gear 111 which meshes with a rack 112 on the reciprocating bed. This gear and rack are in continuous mesh. The cylinder is provided with bearers 113 which rest on bearers 114 on the reciprocating bed. This arrange ment insures uniform travel between the impression surface of the cylinder and the printing surface of the form on the bed.

The bed is shown reciprocated by power by means oi an electric motor 115, which is preferably a reversible motor, the rotor of which is provided with a sprocket wheel no. A shaft 117 is 'iournaled in a bearing 118 on a bracket 119 extending from the frame, and in bearings 120, 121, in a housing 122, fixed to the frame. This shaft has thereon a sprocket wheel 123. A sprocket chain 1% is received about the sprocket wheels 116, 123. (See Figs. 3 and 4,)

The shaft 11! has a worm 126 thereon. End thrust bearings 127 are located between this worm and the bearings me, 121. The

tachably secured to the shaft 75, as by proworm meshes with a Worm wheel 128 fixed to the shaft 63, on which the pinion 62 is also secured. a v

The inker frame is mounted on rollers 131, which are arranged to travel on guideways 132 on the main frame. The meshing of the gears 97, 98, with the racks99, 100 maintains the travel of the inker frame in parallelism with the travel of the reciprocating bed. The inker frame is arranged to be secured relatively to the tympan cylinder shown-accomplished by means'of a hook 135, pivoted to the inker frame, arranged to be releasably received over a pin 136, fixed to the main frame. I

Diiring the printing operation, the inker frame is fixed in close association with the tympan cylinder, as'by the locking engage: ment of said hook, in which relation the gear 91 thereon f s in mesh with the cylinder gear 111, for rotating the inking rollers by the power applied by the cylinder gear111, so

that the rollers Will rotate uniformly with the reciprocating movements of the bed. In this relation the clutch 81 is in engagement. In this relation the inking rollers are rotated for distributing the ink and also for applying the ink to the form for the printing operation. In this relation the handle 101 is preferably removed. (See Figs. 1, 2 and 4.)

If it is desired to rotate the inking rollers for distributing the ink without application .to the form, the inker frame is moved away from the tympan cylinder, which is accomplished by engaging the clutch 82 and attaching the handle 101 to the shaft 75, and rotating the handle for the desired distance of travel of the'inker frame.

The clutch 82 is then disengaged, the

clutch collar being left in neutral position. Rotation of the handle will thereupon causei rotation of the inking rollers in the inker frame, while the latter is in the position in which it has been placed.

If it is desired to rotate the inking rollers and also cause travel of the inker frame lengthwise of the reciprocating bed, for instance for preliminarily inking up the form, the. clutch 82 is engaged and the handle 101 rotated whereupon the inking rollers rotate and the inker carriage travels lengthwise of the bed in either direction, according to the direction of rotation of the handle.

The cylinder '37, is provided with axles 141, which are journaled in bearings 142 movable in guideways 143 in standards 144 secured to the frame, as by means of bolts 145. The cylinder is positioned endwiseby meanspf nuts 146 thread-ed over the threaded ends 147 of said axles, washers 148 being interposed between said nuts and the ends of the bearings 142. (See Fig. 11.)

A link 151 is provided at eachend of the cylinder, these links being provided with bearings 152 respectively received about the in bearings 154 in the main frame, and is provided with an operating handle 155. Eccentrics 156 rock with this rock-shaft, be-

ing held rotatively thereto by keys 157. Ad-

justable eccentrics 158 are received about the eccentrics 156, and are journaled in bearings 159 at the lower ends of the Iinks15-1 respectively. These last-named bearings are shown as two-part bearings, the parts of which are adj ustably connected by means of bolts 160. A worm 161 is journaled in bearings 162, in a bracket 163, fixed to the bearing 159, the worm meshing with a worm-wheel 164 formed on the eccentric 158, each ofthe eccentrics 158 being provided with one of these adjustments, and these adjustments being operable independently of one another.

The adjustments of the eccentrics 158 adjust the pressure of the printing impression and the parallelism between the axis of the tympan cylinder and the form supporting surface of the bed. The rocking of the rock-shaft moves the cylinder into on-impres'sion relation and into off-impression relation. (See Figs. 11, 14 and 15.)

Means are provided for automatically operating the rock-shaft so as to move the cylinder into on-impression relation throughout the length of travel of the bed in printing direction, and for raising thecylinder into oil-impression relation during the re-' verse movement of the bed.

For accomplishing this I provide one of the eccentrics 156 with an arm 167, on which a roller 168 is journaled, and provide the bed 36 with shoes 169, 170. The shoe 169 is 1 located at the end ofthe-reciprocating bed which is under the cylinderwhen the bed is in normal position, that is, when its form supporting surface is in exposed relation .be-

yond the tympan cylinder and the inker frame, when the latter is in adjacency to said tympan cylinder. The shoe 170 is at the opposite end of the reciprocating bed.

-During the printing movement of the bed, which is in the direction of the arrow at shown in Fig. 14, the arm is in depressed relation for depressing the eccentric 156 and depressing the cylinder into its relation of closestapproach to the reciprocating beda This position of the cylinder is maintained during the printing movement of the machine. At the end of said printing movement, the shoe 170 on the bed contacts the roller 168 and moves the eccentric 156, so as to raise the cylinder. The cylinder remains in raised position during the return or reverse movementof thebed into normal position, adjacent to the end of which the shoe 169 strikes the roller 168, and again moves the cylinder into down position, ready for the next impression movement of the bed.

I provide means for definitely and accuone of the shoes, one end of the spring presented toward the other side of the other of a the shoes, andthe other end of the spring being held by a nut 179, adjustable on said rod, for adjusting compression of the spring. (See Figs. 3, 4, 5 and 6). The shoes are provided with rollers 180. A releasing block 181 is mounted on a lever 182, pivoted on v a rock-shaft 183 journaled in the housing This releasing block is provided with wedge faces 184, 185, arranged to be interposed between said rollers for spreading the brake shoes by movement of the releasing block in either direction. The releasing block is moved for disengaging the clutch for operative movement of the printing engaging the brake. When the operating handle 189 is moved in the opposite )Tlirection, the positioning plate 202 is first moved into neutral position for neutral position of the switching mechanism and engagement of the clutch, and then for opposite setting of the switching mechanism for rotating the rotor of the motor in the opposite direction and disengagement of the brake and movement of the bedin its opposite direction.

The roller 208 is mounted on a lever 209, pivoted to the frame at 210. A plug 211, backed by a spring 212, normally urges the lever and the roller thereon toward the positioning plate. .The plug and the, spring.

are located in a socket 213 in the frame. (See Figs. 16, 17).

The arm 201 is provided with a segment gear 215, which meshes with a segment gear 216, on a rocker-part 217, which is journaled about a bushing 218 which forms part of the bearing 154. This rocker-part is provided with rollers 219, 220. The bed 36 is provided with tappets 221, 222, at its respective ends. The tappet 221 coacts with the roller 219, and the tappet 222 coacts with press, and is arranged to be'moved into the roller 220, these respective tappets and raking relation at the moments when the reciprocating bed reaches the end of either of its directions of movement. The shoes are arranged to clamp about a pulley 188, fixed to the shaft 117.

The releasing block 181 is operated by a handle 189, fixed to a rock-shaft 190, having an arm 191 fixed thereto, a link 192 being articulated to said arm at 193, and to an arm 194 at 195. The arm 1-94 extends from the lever 182. The hub of the arm 191 is provided with a positioning face 196, shown as a flat face, against which a plunger 197 is urged by a spring 198 in a socket 199, the walls of which are formed by the main frame, the spring being held in the socket by means of aplug 200 securedto the socket-piece.

An arm 201 is secured to the rock-shaft 190 and has a positioning plate 202 secured thereto. This positioning plate has wedge faces 203,204, 205, thereon, forming apices 206, 207, therebetween. When the positioning plate is rocked for causing coaction of itswedge faces 203 with a roller 208, the

positioning plate is in neutral position, and the brake 171 is in engaged relation, the

rollers 180 being opposite the reduced per-- tions of the wedge faces on the wedge block 181. The switch operating means comprise the same handle 189 and the rock-shaft 190.

When the operating handle 189 is moved in one direction, the apex 206 passes the.-

roller 208 for setting the switching mechanism for operation of the motor in one di rection and for movement of the bed 36m one direction, and also for movement of the releasing block 181 in one direction for disrollers' being in different vertical planes, parallel with the path of travel of the bed, (see F1gs.'16, 17, 18 and 1.9) so that theydo' not interfere with each other in their operative functions. These tappets and rollers and the rocker-part are provided for automatic tripping of the switching mechanism and brake. When the bed is inneutral p0- sltion, the rocker frame has been rocked for placing the switching mechanism inneutral relations and the brake in braking relation.

' The motor 115 is a reversible motor, controlled in opposite directions of rotation by the switches 172,173. These switches are normally open switches, and are respectively controlled by operating arms 223, 224, on

which rollers 225, 226, are located. These arms are normally spring-pressedtoward an operating arm 227, by means of springs'228, 229. The operating arm 227 issecured to the shaft 183, to which the lever 182, which controls the brake, is also secured. When the arm 227 is moved in one direction, one

of the switches isclosed for energizing the motor for rotation of its rotor in one direction, and when the arm 227 is moved in opposite direction from its neutral position, the other of said switches'isclosed, for rotating said rotorin the opposite direction, and thereby controlling the direction of movetion of rotation of the cylinder and of the inking rollers, when the latter are geared to the cylinder.

'- ment of the bed, and consequently the direc The rocker-part and tappets are also so related that the switches are placed in neutral positions at'the respective ends of travel of-the bed. The handle 189 can then be moved only in a-direction which'will energize the electric motor in'the opposite direction for reverse movement of the bed, as a matter of safety, to prevent overrunning of the bed in either direction. Thus, referring to Fig. 16, which represents the bed .in its normal position, the tappet 221 is shown in interfering relation with the roller 219, so as to prevent rocking of the rocker-part in one of its directions of movement. The operating handle 189 can therefore be moved only in one direction, which will correspond to the closingof the switch to actuate the elec-' tric motor in a direction to cause travel of the bed in the direction of the arrow 6. This means a rocking of the rocker-part so as to move the roller 220 upwardly. The bed thereupon travels in the direction of the arrow 6, the tappet 221 passing the roller 220, because said tappet is in a different vertical plane from that in'which said roller 220 1s located.

At the opposite end of the path of the bed, the tappet 222 strikes the roller 220, for returning the rocker-part and the operating handle 189 to normal positions, and thereby also placing the arm 227 in normal position, for neutralrelations of the switches, the releasing block 181 being also returned to neutral position, for instantly clamping the brake and stopping the travel of the bed and the rotation of the cylinder at definite positions, corresponding to the positions of the parts shown in Fig. 21. If it is desired to move the bed in the opposite direction, the handle 189 is rocked in the opposite direction, placing the parts in the relation shown in Fig. 17, and. causing travel of the bed in the direction of the arrow 0.

The rocking of the rocker-part into such position also shifts the releasing block for release of the br ake. In this relation, the roller 219 is passed/by a recess 230 in the block on which the tappet 222 is formed.

-' At the end of the reverse travel of the bed,

the tappet 221 strikes the roller 219, for returning the rocker-part and consequently its v operating arm and the releasing block 181 and the switch operating arm 227, to neutral positions, for deenergizing the motor and applying the brake, so as .toarrest the movements of the bed and tympan cylinderin definite positions,- such as exemplified in Fi s. 16 and 20.

rippers 236 are mounted on a rock-shaft 237 journaled in the tympan cylinder. The grippers are adjustable lengthwise on said rock-shaft and are arranged to be clamped in adjusted positions by usual clamp-bolts 238.

(See Figs. 2, 7, 11, 20 and 21.) A spring 239 normally urges gripping relation of said grippers in usual manner. The spring surrounds a rod 240, articulated at 241 to'an arm 242, fixed to the rock-shaft 237, and slidable at its other end in a bearing 243 fixed to the end wall of the cylinder. The arm 242 has a shoe 244 formed thereon, which is arranged to-contact a block 245, fixed to the bed 36, as by means of screws 246. The 00- action between this block and shoe opens the grippers at the position of rest of the tympan cylinder .upon the completion of the printing movement of the bed, so that a printedsheet, which has been gripped bythe grippers, is released, in order that it may be removed from the cylinder.

The paper to be printed is fed to the cylinder from a paper table 251, being guided and positioned by proper gauges, exemplified as an adjustable sidegauge 252, and end gauges 253, which latter are adjustably secured to a cross-shaft 254, on which the usual clamps 255 for the ends of the tympan sheets are also located.

A lever 257 is pivoted at 258 to a lug 259 on the standard 144. This lever is of arouate form, and has one end of a link 261 articulated therewith at262, the other end of the link being articulated at 263 to a treadle-arm 264, pivoted, at 265 to the main frame, (see Figs. 3, 20 and 21) and having thereon a treadle 266. I

The lever 257 is provided with a contactpart, shown as a pin 267, which is arranged to en age the shoe 244, when the tympan cylin er is in normal position, and the treadle is depressed, for rocking the gripper shaft and opening the grippers, to permit the feeding of a sheet against the gauges. Release of the treadle closes the grippers, whereupon the printing operation is performed, the grippers being released at the completion of the printingoperation, exemplified in Fig. 21, so that the printed sheet may be removed from the tympan cylinder, the tympan cylinder making approximately one and one-third revolutions in the rinting operation, and a similar number 0 rev-- guides guide the paper about the'cylinder and prevent dropping of the paper away from the cylinder for .preventing soiling thereof.

v A further guiding means for the paper is mounted on the paper table, and consists of rollers 275 mounted on arms 276, adjustable to* selected positions lengthwise of a rock-shaft 277, as by means of set-bolts 278. The rock-shaft is journaled in bearin s 279 of side frames 280, hinged on a sha 281,

mounted in bearings 282, of pedestals 283,

at the respective sides of the main frame,

for permitting swinging of the table up wardly away from the; cylinder, as shown in dotted lines in Fig. 1.

An arm 285 is fixed to the rock-shaft 277. This arm is normally urged for rocking the rock-shaft to cause engagement of the rollers 275 with the outer surface to the tympan cylinder, shown accomplished 'by means of a plunger 286, the end of which is received in a socket 287 in said arm, the. plunger being rovided with a stem 288 having-a pull-kno 289 thereon. The lunger operates in a socket 290 of an adjusta le bolt 291, adjustable in. a lug 292 extending from the side frame. An vadjustable stop screw 293 is threaded in the side frame, and is held in adjusted position by a jam-nut 294. This'stop screw limits the approach of the rollers 275 toward the tympan cylinder. The adjustment of the bolt 291 limits the movement of the plunger toward the arm 285, and adjusts the tension of a spring 295, which urges the plunger toward, the arm 285.

These adjustments control the approach of the rollers 275 toward the tympan cylinder and the pressure thereof upon the sheet being printed. (See Figs. 7, 8. and 9).

The approach of the paper table toward the tympan cylinder is controlled by stopscrews 296, at the respective sides ofithe table, these stop-screws being ad'ustable in the pedestals 283, and held in ad'usted positions by jam-nuts 297. 1

A plunger lock 301, having a tapered end 302, is received in a socket 303 in the side frame of the paper table, the socket having a tapered face coacting with the plunger. (See Figs. 8 and 10.) The plunger is located v, in a socket 305 in the pedestal 283, and is provided witha stem 306, which has a handle 307 at its outer end. A spring 308 is of the socket for normally urgin the plunglocated between the plunger andgthe bottom er into engagement with the si e frame of the table, sition. j

My improved device provides novel and acor holding the table in down pocurate means for printing sheets of paper,

especially in taking proofs; and provides slmple means'whereby thesheets of paper may be accurately positioned upon the cylinder and clamped in such accurate position; prov1des slmple and accurate means whereby the travel of the bed and rotation of the cylinder are controlled, and cessation of;

movements thereof compelled at definite Posi .tions provides novelymeans for adjusting pressures of the impressions and controlling the approach and recession. of the cylinder with relation to the bed; insures the desired proper inking of the form; provides comined control of the electric motor for drivin the machine and the brake for the same, an provides automatic controlsfor the approach and recession of the cylinder, and for about the axis of rotation of said cylinder and a second bearing, an eccentric in said second bearing, operating means connecting With said eccentric and means on said bed automatically controlling said eccentric.

2. In a printing machme, the combination of a println couple comprising a reciprocating bed an a rotating cylinder geared together, and positioning means for said cylinder comprising a link having a bearing about the axis of rotation of said cylinder and a second bearing, nested eccentrics in said second bearing, a handle for operating an inner one of said eccentrics for raising-and lowering said link, and adjusting means on said link for rotatively adjusting the other of said eccentrics.

3a In a printing machine, the combination of a printing couple comprising a bed and a cylinder, and positioning means for said cylinder comprising a link having a bearing about the axis of rotation of said cylinder and a second bearing, nested eccentrics in said second bearing, operating means connecting with one of said eccentrics, the other of said eccentrics provided with a worm-' of-a printing couple comprlsing a bed and a cylinder,.and positioning means for said cylinder comprising a link having a bearing about the axis of rotation of said cylinder and a second bearing, nested eccentrics in said second bearing, an arm on one of said eccent ics, manual operating means for rotating said last-named eccentric to respectively cause approach and recession of said cylinder-with relation to said bed, means on said bed for moving said arm in opposite directions adjacent the limits of opposite movements of said bed, and means for rotatively adjusting the other of said eccentries.

5. In a printing machine, the combination of a rinting couple comprising. a bed and a .cylin er, andposltionin means for said cylhavlng a bearing Y inder comprising a lin about the axis of rotation of said cylinder and a second. bearing, an'eccent-ric in said second bearing, an arm on said eccentric, manual. operating means for rotating. said eccentric to respectively cause approach and recession of said cylinder withrelation to said bed, and means on said bed for moving said arm in opposite directions adjacent the Limits of opposite movements of said bed.

6. In a printing machine, the combination of a printing couple comprising a bed and a cylinder, and positioning means for said cylinder comprising links at the respective ends of said cylinder, a bearing on each of said links about the axis ofrotation of said cyl inder, a second bearing on each of said links, operatively connected eccentrics in said lastnamed bearings, an operating part extending therefrom, and means on said bed arranged to move said operating part in opposite direct-ions adjacent the limits of opposite movements of said bed, said means maintaining said operating part against reverse movements during rest positions of said bed at said limits of opposite" movements.

7. In a printing machine, the combination of a printing couple comprising a bed and a cylinder, a bearing for each end of said cylinder, a link at each end of said cylinder comprising bearings about said first-named bearings bearings at the other ends of said links, a pair of nested eccentrics in each of said last-named bearings, operating means connecting with'one of the eccentrics of each of said pairs for raising and lowering said first-named bearings, and independent adjusting means connecting with the other eccentric of each of said pairs of eccentrics.

8. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, an electric motor for driving the same, electric translating means for controlling the operation of said motor, and means for operating said translating means comprising an actuated member having a neutral position .and arranged to be operated opposite directions from said neutral position, and tappets on said bed coacting with said actuated member so placed as to move said actuated member in opposite directions adjacent to the limits of opposite reciprocating 'movements of said bed and at said limits to move into interfering relation with said actuated member to interfere with opposite movements of said actuated member at each of said limits.

9. In a printing machine,'the combination of a printing couple comprising a bed and a cylinder which are geared together, an electric motor for driving the same, electric translating means for controlling the operation of said motor, -means for operating said translating means comprising an actu ated member having a neutral position and arranged tobe operated in opposite directions from said neutral position, tappets on said bed coacting with said actuated member so placed as to move said actuated member in opposite directionsadjacent to the limits of opposite reciprocating movements of said bed and at said limits to move into interfering relation with said actuated member to interfere with opposite movements of said actuated member at each of said limits, and an operating handle for said actuated member.

10. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, an electric motor for driving the saine, electric translating means for controlling the operation of said motor, means for operating said translating means comprising an actuated member having 'a neutral position and arranged to be operated in opposite directions from said neutral position, tappets on said bed coactin'g with said actuated member so placed as'to move said actuated member in opposite directions adjacent to the limits of opposite reciprocating movements of said bed and at said limits to move into interfering relation with said actuated member to interfere with opposite movements of said actuated member at each of said limits, a brake, and means connecting said act'uated member with said brake, whereby to cause braking action in said brake during neutral positioning of said actuated member and release relation in said brake during said movements of said actuated member in said opposite directions.

11. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, driving means for the same including an electric motor, electric translating means for controlling the operation of saidmotor, a

brake for said driving means, and means for operating said translating means and said brake comprising ahandle, automatic positloning means for the same,'and connecting meansbetween said handle and said translating means and said brake,whereby to place said translating means in neutral relation and said brake in braking relation by neutral positioning of said handle, and to operate said translating means and release said brake by movements in opposite directions of said handle.

12. In a printing machine, the combination of a printinv-couple-comprising a bed and a cylinder which are geared together, a. reversible electric motor for driving the same, electric translating means for controlling the operation of said motor in opposite directions, a rockable member, means for normally holding said rockable .member in neutral position, a handle for manually rock-. ing said rockable member, said bed provided with means for moving said rockable member in opposite directions adjacent to the limits of opposite movements of said bed, and means resiliently holding said handle in neutral position.

13. Ina printing machine, the combine,-

loo

tion of a printing couple comprising a bed and a cylinder which. are geared together, and means for controlling the reciprocations of said bed comprising a rock-shaft, a handle therefor, means resiliently holding said rockshaft in actuated positions, a rockable member, gearing between said rock-shaft and said rockable member, and means on said bed for automatically rocking said rockable member and forming obstructing means for obstructing reverse movements of said rockable member.

14. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, positioning means for said cylinder comprising a link at each end of said cylinder, each of said links having a hearing about the axis of rotation of said cylinder and a second bearing, eccentrics in said second bearings connected for combined rockable movements, a rockable member about the axis of rotation of said eccentrics, driving means for said machine controlled by said rockable member, and actuating means on said bed for automatically rocking said eccentrics and said rockable member.

15. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, positioning means for said cylinder comprising a link at each end of said cylinder, each of said links having a hearing about the axis of rotation of said cylinder and a second bearing, eccentrics in said second bearings connected for combined rockable movements, a. rockable member about the axis of rotation of said eccentrics, driving means for said machine controlled by said rockable member, actuating means on said bed for automatically rocking eccentrics and said rockable member, and independent manual means for rspectively rocking said eccentrics and said rockable member.

16. In a printing machine, the combination of a rinting couple comprising a bed and a cylinder which are geared together,

positioning means for said cylinder comprising a link at each end of said cylinder, each of sald links havmg a bearing about the axis of rotation of said cylinder and a second bearing, eccentrics 11163.1(]. second bearings connected for combined rockable movements, a rockable member about the I axis of rotation of said eccentrics, driving means for said machine controlled by said rockable member, actuating means on said ing a link at each end of said cylinder, each of said links having a bearing about the axis of rotation of said cylinder and a second bearing, eccentrics in said second bearings connected for combined rockable movements, a rockable member about the axis of rotation of said eccentrics, driving means for said machine controlled by said rockable member, actuating means on said bed for automatically rocking said eccentrics and said rockable member, braking means for said driving means havingoperative connection with said rockable member, and independent manualmeans for respectively rocking said eccentrics and said rockable member.

18. In a printing inachine, the combination of a printing couple comprising a bed and a cylinder which are geared together,

grippers on said cylinder, means for arrestwith a coacting part coacting with said shoe for releasing said grippers upon actuation of said treadle, and means between said bed and said shoe automatically coacting at the end' of the printing movement of said bed to release said grippers.

20. In a printing machine, the combination of a printing couple comprising a bed and a' cylinder which are geared together, a paper feed table, and means thereon in rear of the delivery end of said table-arranged to bear upon the fed sheet after being printed. v

21. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, a paper feed table, paper guiding means about said cylinder between said table and said bed, grippers on said cylinder, and meansbetween said'bed and said grippers automatically coacting at the end of printing movement of said bed to release said grippers, whereby to permit withdrawal of the printed sheet from said grippers and guides.

22. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together,

a paper feed table, a rock-shaft thereon,

arms adjustably secured to said rock-shaft projecting toward said cylinder, rollers on said arms coacting with said cylinder in rear of the delivery end of said table, and grippers on said cylinder in advance of the delivery and of said table whensaid cylinderisin normal position and arranged whereby said cylinder makes more than a complete revolution in printing 'a sheet, said rollers arranged to bear u n the printed sheet during the latter portlon of said rotation of said cylinder.

23. In a printing machine, the combination of a printing couple comprising a bed and a cylinder which are geared together, a paper feed table, a rock-shaft thereon in rear of the delivery end of said paper feed table, arms on said rock-shaft extending toward said cylinder, rollers on said arms coacting with'said cylinder and arranged to bear upon the fed sheet after being printed,

and resilient means urging said rollers toward said cylinder.

24. In a printing machine, the combination of a printing couple comprising a bed and a cylmder which are cared together, apaper feed table, a roe -shaft thereon in rear of the delivery end of said paper feed table, arms on said rock-shaft extend-- in'g toward said cylinder, rollers on said arms coacting with said cylinder and arranged to bear upon the fed sheet after being printed, resilient means ur g said coacting with 'said cylinder and arranged to bear upon the fed sheet after eing printed, adjusting means limiting approach of said rollers toward said cylinder, and adjustable resilient means coacting with said lastnamed adjusting means for resiliently urgin approach of said rollers toward said cy inder. j

In testimony whereof, I have hereunto signed'my name.

LESLIEL W. CLAYBOURN.

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