US2104553A

US2104553A - Means for registering printing plates

Info

Publication number: US2104553A
Application number: US17673A
Authority: US
Inventors: Leslie W Claybourn
Original assignee: Individual
Current assignee: CB Cottrell and Sons Co
Priority date: 1935-04-22
Filing date: 1935-04-22
Publication date: 1938-01-04
Anticipated expiration: 1955-01-04

Description

Jan. 4, 1938. .L. wbcLAYBouRN MEANS FOR REGISTERING PRINTING PLATES Filed April 22, 1955 5 Sheets-Sheet 1 J 0.5 n: J 2 m a Z y 2 w 3 /3 4 4 2 .3 3 2 Z a "w x m m 2 w M l 4 2 s b uni +4 i 6 ion w w M/mswroe:

L. W. C LAYBOUR N MEANS FOR REGISTERING PRINTING PLATES Jan. 4, 1938.

s Sheets-Shet 2 Filed April 22, 1955 I L. w. CLAYBOUR N 2,104,553 MEANS FOR REGISTERING PRINTING PLATES Filed April 22, 1935 3 Sheets-Sheet 3 m4 /2; m5 M //o 21;; 6 /zv,

Patented Jan. 4, 1938 PATENT 'OFFlCE MEANS Foa REGISTERING PRINTING PLATES Leslie W. Claybourn, Milwaukee, Wis., assignor to C. B. .Cottrell- & Sons Company, Westerly, R. I., a corporation of Delaware Application April 22, 1935, Serial No. 1"),673

21 Claims.

The term printing plate herein is to be understood as including printing plates for mounting on so-called bases, type high printing plates, and stones and other plates, sheets and blocks 9 on which matter to be transferred by impression is located.

The present invention is exemplified in connection with curved printing plates less than type high, and the support-for the printing plates is exemplified as a plate cylinder, although it is obvious that certain parts of the invention are also applicable to registering flat printing plates.

The present invention is an elaboration or carrying forward of the invention shown,= described and claimed in my copending application on improvements in Means for registering printing plates, Serial No. 16,646 filed April 16, 1935, and exemplifies additional modifications of said invention.-

) It is the object of the present invention to provide novel means for determining the proper position of a printing plate on its support, further, to provide novel means for determining proper related positions of printing plates on their support, for instance, in making up a form of printing plates; further, to provide novel means whereby printing plates for successive printings are positioned relatively to each other so that the printing lines for printing different colors of a multi-color subject are properly related in the successive printings, for instance, on a multi-color printing press having a plurality of plate cylinders for printing successive colors; and, further, to provide novel means adapting my improved device as an attachment for a printing press whereby the printing plates may beproperly positioned on the plate cylinder or cylinders.

The invention consists in novel means for atl taining these objects and in novel parts and arrangements of parts for obtaining the results desired.

The invention consists further in providing novel means for supporting an indicator or indicators in manner for indicating the correct position of the printing plate or plates; further, in providing novel means for mounting an indicator frame; further, in providing novel means for positioning the indicator frame in operative position and in retracted position; further, in providing novel means for lateral movement of the indicator frame into co-relation with different portions-of the plate support; further, in providing novel means whereby to register different portions of a plate support with the indicating means; and, further, in providing novel means whereby to register the indicating means with relation to the plate support.

The invention consists, further, in mounting indicating means for plate positions on the frame of a printing press, means whereby to relate the plate position on the plate support of the printing press with the indicating means, and means whereby to relate the indicating means with the plate support; further, to provide novel means 10 whereby to shiftably mount the indicator means on the frame of the printing press; further, to provide novel means for insuring parallelism between the indicating-means and the axis or rotation of the plate cylinder; and-further to provide novel means whereby to releasably mount plate registering means on the frame of a printing press.

The invention is exemplified in connection with a plate cylinder of a rotary printing press, only so 2!) much of the printing press being shown as is necessary to illustrate the I invention. Such plate cylinder may be a single plate cylinder of a printing. press or one of a number of plate cylinders, for instance, of a multi-color printing machine. The printing machine is assumed to contain the usual parts, features and functions of a machine of this character.

The term cylinder includes any cylinder or sector of a cylinder capable of supporting a curved printing plate or plates being registered.

While the invention is exemplified as applied to a plate cylinder as a support for the printing plate or plates, it is, of course, obvious that certain parts of the invention are applicable to a fiat printing plate or plates mounted on a flat support or bed of a printing press.

In the drawings:

Fig. 1 is an end elevation of my improved device, applied to a rotary printing press, partly 40 broken. away, the indicator frame being shown in operative position in full lines, and in retracted positions in dotted lines.

Fig. 2 is a front elevation of the same, partly broken away.

Fig. 3 is a vertical section of the same, taken on the line 3-3 of Fig. 2, and partly broken away.

Fig. 3a is a cross sectional detail view taken on the line 3a-3a of Fig. 2.

Fig. 3b is a cross sectional detail View taken on the line b -3b of Fig. 3.

Fig. 4 is a side elevation of a rotary printing press, showing the driving means for the cylinders. partly broken away. 86

Fig. 8 is a cross section of the same, taken in the plane of the line 8-8 of Fig. '7.

Fig. 9 is alongitudinal section of a detail of the same, taken in the plane of the line 9-9 of Fig, 8.

Fig. 10 is an enlarged rear elevation of the indicator frame and its mounting, partly broken away.

Fig. 11 is a longitudinal section of the same,

taken in the plane of the line ll-ll of Fig. 5.

Fig. 12 is a cross-section of the same, taken in the plane of the line l2l2 of Fig. 11.

Fig. 13 is an end elevation, partly broken away, showing a modification of the mounting means.

Fig. 14 is a cross-section of the same, taken on the line |4l4 of Fig. 13.

Fig. .15 is a section of the same, taken in the plane of the line I5-I5 of Fig. 14; and, v

Fig. 16 is a cross-sectional detail view of the same, taken in the plane of the line |6l6 of Fig. 14.

A support 2 lis exemplified as a cylindrical sup port for the printing plate 22, which is shown as a curved printing plate. (Figs. 2 and 5.) The printing plateis shown rectangular and is provided with suitable register marks 23, which may be notches or incisions made on the beveled edges 24 of the printing plate, as exemplified in Letters Patent No. 1,839,886, granted to meJanuary 5, 1932, for Means for registering printing plates, although the register marks may be of any suitable character. i

The register marks on opposite edges are in spaced apart relation, the register marks on.

edges at angles to each other being respectively in lines at right angles to each other on the center lines of the key plate, and on' the center lines of the printing portions of other printing plates. The printing plates may be of different sizes andof different shapes, but the register marks are coincidentally placed on all the printing plates gauged by their printing lines, so that printing portions of a plurality of multi-color printing plates for color printing of a given sub- .Iect may be registered in co-related positions.

The support maybe the usual plate cylinder of a printing press, a portion of the frame of the printing press being shown at 25. '(Figs. 1, 2

. and 4.) The plate cylinder is provided with end trunnions 26, journaled eccentrically in bushings 21, rockable in usual bearings 28 of the frame. The bushings are rockable by any suitable or usual means for placing the plate cylinder in on-impression or in off-impression relation to a; usual impression cylinder 29 of the printing press. The plate. cylinder coacts with the impression cylinder, to form a printing couple, as exemplified in Figs. 1 and 4. There may be a number of such plate cylinders about the impression cylinder, as, for example, in a multi-color rotary printing machine,- and a number of the printing plates may be registered and secured in registered positions to each cylinder.

The printing plate is arranged to be adjusted and secured in adjusted position to the plate cylinder by suitable so-called register hooks 3|, (Figs. 2 and 5), respectively provided with a pivoted hook member 32 pivoted to a body 33 arranged'to be adjusted and held lengthwise in undercut or dove-tailed grooves 34 in-the support, 5

all as more fully shown and described in Letters Patent No. 1,486,323, granted me March 11, 1924, for Printing plate securing means. The hook member is provided with an undercut beveled face arranged to impinge the beveled edge of the printing plate, the printing plate being shifted and secured firmly to its support by register hooks coacting with the respective bevel edges of the same.

The cylinder is provided with a scale-4| about its circumference concentric with its axis. (Figs. 2, 3, 3b, 5 and 5a.) This scale in practice has. very finely divided graduations for delicacy of ad-. justment. There are preferably two of these scales respectively at the ends of the cylinder. 2 They are shown on bands, for instance, of steel, 1 which are let into rabbets 42 at the inner ends of the usual bearers 43 at the respective ends of .the cylinder. Graduations of the respective scales are accurately placed with relation to each other 2 so that similar marks denoting equal values are coincidentally in the same radial plane of the cylinder when the scale bands are secured to the cylinder, as by screws 44.

Across frame 45 extends lengthwise of the cyl- 3 inder and supports an indicator frame 46, which is provided with a linear indicator 41 extending lengthwise of the cylinder and with a linear indicator 48 extending about the cylinder. The cross frameis provided with a scale 49, and the 3 indicator frame is provided with a linear indicator 50 in line with the linear indicator 48. The scale 49, similarly to the scale 4|, has very finely divided graduations for delicacy of adjustment. The indicatonframe is preferably arcuate about the cylinder, and is preferably concentric with the cylinder when the latter is in off-impression relation, which is preferably the position of the plate cylinder when the printing plates are being registered thereon. I 4

Adjustment is provided between the cylinder and the linear indicator extending lengthwise of the cylinder.. By mounting the indicator frame on the machine frame, this adjustment may be obtained by rotation of the cylinder. Adjustment 5 is also obtained between the linear indicator 41 and the scales on the cylinder by adjustment of the cross member 5| ofthe cross frame on which the indicator frame is unted about the cylinder, so as to shift the indicator frame about the 5 cylinder into registry with given values on the emplified in Figs. 1 to 12 inclusive, the cross frame comprises a head at each of its ends, arranged to be stationarily secured to the frame of the printing press. (Figs. 1, 2 and 6).

Each of the bearings about the trunnions of the plate cylinder is provided with an arcuate guide 56. (Figs. 1, 2 and- 6.) This arcuate guide is shown as a plate rigidly secured to the inner end face of the cap 51 of the bearing by bolts 58, this cap being fixed rigidly to the solid part of the bearing by bolts 59. The arcuate guide has a guiding face for the head which is concentric plate cylinder, the parts being reverse but being otherwise duplicates and being designated by the same reference numerals. One of the bolts 58 is shown countersunk within the guiding face of the arcuate guide in order to extend the range of adjustment of the head thereon. The frame may be provided with such guides at each of l the plate cylinders, which may remain in place, as they are in such positions as not to interfere with the operation of the printing press.

Each of the arcuate guides comprises parallel inner and outer side guide faces 8|, 62, an outer arcuate guide face 83 and an inner guide face 64. (Fig. 7.) The body of the head 55 comprises an inner side guide face 65 and an outer arcuate guide face 66. A plate 61 has an inner guide face 68 and is fixed to the body of the headby bolts 69.

A clamping shoe II has a clamping face I2 which coacts within the arcuate guide face 64. (Figs. 6, 7,8 and 9.) The outer end of this clamping shoe is received in an undercut innerrabbet 73, having the inner arcuate guide face 64 as one of the walls thereof. This shoe is arranged to be moved into and out of said rabbet for facility in removing and replacing the head, and toward and from its coasting clamping face for clamping and unclamping the head to the guide. The shoe is shiftable between lugs II, depending from the body of the head, and is held in release position.

by yieldable positioning parts, shown as balls I5 located in holiow bolts I6 threaded in the head, the balls being spring-pressed by springs II in the bolts into positioning holes I8 in the shoe.

A rockable stem 8| (Figs. 6, 7, 8 and 9), is rotatable in

bearings

82, 83 of the body of the head. It is provided with an eccentric 84 in a slot 85 in the shoe for moving the shoe into and out of its rabbet I3, and is provided with a flange 86 located under the shoe. The other. end of the rockable stem is threaded, as at 81. It has a nut 88 there about, which is endwise positioned, as by having an annular groove 89 in which the inner end of a screw 88 threaded in a bearing 9| is received.

The upper end of the stem has a nut 92 threaded thereby forms a tongue received in the groove, and the arcuate guide-face 68 on the head may be caused to coact with the arcuate guide-face 83 on the guide. The handle 93 is then turned for shifting the shoe into the rabbet I3, and the nut 88 is rotated for clamping the shoe upon the guideface 64 for clamping the head to the arcuate guide. This clamping may be accomplished at any position of the head along the arcuate guide.

The head 55 (Figs. 1, 2, 6 and 11) is provided with a bracket I8 I which has a bearing I82. The cross member 5|, which is shown as a tube, extends between and is secured in said bearings. Each end of the tube is provided with an enlarged bore I83 to form an annular. internal shoulder I84. A plug I85 is received in said enlarged bore against said shoulder, and a pin I88 ,is received through registering holes in the bearing I82 and the walls of said bore and in said plug for rotatively locating said tube with relation to said bearing and instanced as rigidly securing the parts together. One of said plugs may be provided with a hole I81 for ease in assembling the parts.

A cap plate I88, secured to the bearing by screws I89, closes the outer end of each bearing.

The outer circumference of the cross member lengthwise of the cross member is provided with a flattened face III, to which the scale 49 is secured as by means of screws II2. (Figs. 2, Sand 11.)

The indicator frame 46 is shiftably mounted on the cross member. (Figs. 1, 2, 5, l1 and 12.) It is provided with a bearing II 3, which is shiftable lengthwise of the cross member, and is shown 'rotatable thereon. An additional hearing I I4 has annular tongue and groove connection II5 with the bearing I I3, and is shiftable therewith lengthwise of the cross member, and is arranged to be fixed to the cross member at suitable positions therealong. The bearing H4 is provided with a spline H6 which slides along a groove H1 in the cross member for preventing rotation of this bearing on the cross member. The inner face of the bearing I I3 may be provided with an inner annular wiper H8.

The bearing I I4 is shown as comprising two segments hinged together by a hinge I I8 and arranged to be ,clamped about the cross member by a clamp screw H9 having a shoulder I28 on one of said segments and threaded as at I2I into the other of said segments.

The clamp bearing is provided with notches I25. (Figs lO, l1 and 12.)

A latch I26 is pivoted at I21 to the indicator frame and has a tooth I28 releasably received in any of the notches. It is operated by handle I29. A spring I38 in a hole I3I in 3. lug I32 on the indicator frame bears upon the latch for normally pressing the tooth I28 into the notches I25. The latch positions the indicator frame in operative position close to the supporting face of the support for the printing plate when registering the printing plate, and in spaced relation in different positions away from said supporting face for convenience in insertion and removal of printing plates between the indicator frame and the supporting surface and for observation. The end of the latch is arranged to engage a shoulder I33 on I the bearing II4 for limiting movement of the indicator frame toward the plate supporting surface to avoid damage to printing plates.

There is preferably just suificient space between the inner surface of the indicator frame and the supporting surface for the printing plate when the indicator frameis in operative or normal position to allow adjustable shifting of the printing plate' on its supporting surface for registry of the spaced "apart register marks on the printing plate with the linear indicators on the indicator frame.

The printing plates may also be slipped under the indicator frame when the latter is in normal position, but it is preferred to raise the indicator frame when, initially placing the printing plates, although the printing plates may be initially placed in approximate positions on the plate I istry with any of the values on the scale,48 by movement of the indicator frame lengthwise of this scale. The indicator is shown \as a locating line on a transparent sheet I35, this line being exemplified as a scribe line on the sheet close to the scale 48. The sheet may be a sheet of suitable preferably non-frangible flexible transparent substance, for instance, so-called pyralin, which can be made very thin and .the scribed line placed in close adjacency to said scale. This sheet is secured to the end faces I 36 of the walls of the slot I34 by screws I31.

The indicator frame 48 (Figs. 1, 2, 5 and 10) comprises an arm I4I which extends about the cylinder andi. shown of arcuate form so that all portions thereof may be arranged close to the printing face of printing plate on the plate cylinder. For convenience, the arm may be separate from its bearing H3 and be secured in relation thereto by locating pins I42 and bolts I43. (Figs. 5 and 11.) The arm is provided with viewing slots I44, through which the registering marks on the printing plate may be observed. The linear indicator 48 is inline with said slots and in line with the linear indicator 50.

The linear indicator 48 maybe a scribed line on a sheet I45 of suitable preferably non-frangible flexible transparent substance, similar to the transparent sheet I35, and secured to the arcuate face I48 on the under side of the arm I4I, as by screws I41.

The indicator frame comprises laterally projecting arms IIiI I52, which may be arms formed separate from the arm I and fixed in rigid position thereon by bolts I53. projecting arms (Figs. 1, 3, 5 and 10) are provided with viewing slots I 54 in which sections of thelinear indicator 41 are located.- These sections of the linear indicator mayalso be scribe lines on similar suitable preferably nonefrangible flexible transparent sheets I55, secured to the inner faces of said laterally projecting arms by screws I58. These scribe lines are in line with each other at right angles to the scribe lines 48, 50, and are arranged to register with similar value marks on the scales 4I about the axis of the cylinder.

For convenience in obtaining registry between the cylinder and the linear indicator extending lengthwise of the cylinder, and for insurance of registry between said linear indicator and the scales about the cylinder regardless of the lateral position of the indicator frame lengthwise of the cylinder, a separate register bar I58 is provided, for registering the rotative relation of the cylinder and the indicating means. and 5a.)

The register bar is flxedto a collar I58, as by screws I50, fixing the bar to a flat face on the collar, and the collar is shiftable lengthwise of the cross member, and is arranged to be clamped in adjusted positions by means of a clamp screw I8I threaded in the collar and acted upon by a shoe I62 located in a slot I83 im the collar and bearing upon the cross member. The shoe moves with the collar, as by being provided with end lugs I84. bearing upon the respective ends of the collar.

The register baris provided with a register mark I 85, or pointer, shown as the beveled-end These laterally- F s- 3a of the bar, which is arranged to register with values on the scale about the cylinder. There is preferably one of these register bars at each end of the cylinder so as to insure that the positioning of each end of the cross member is correct, so that the cross member is accurately parallel with the axis of rotation of the cylinder.

The register bar is shiftable lengthwise of the cylinder and its register mark or pointer registers the same radial plane of the cylinder regardless of its position lengthwise of the cylinder. The register mark registers the correct position of the linear indicator 41- regardless of the position of the indicator frame lengthwise of the cross member, and regardless of the position lengthwise of the cylinder at which a printing plate is being registered. The cross frame is shiftable for registering a printing plate in any position lengthwise of the cylinder. It may also be shifted to an extreme position at either end of the cylinder, in which position its linear indicator 41 is directly in registry with one or the other of the scales at the respective ends of the cylinder.

In the modification shown in Figs. 13 to 16 inelusive, similar parts are designated by similar but primed reference numerals. This modification exemplifies a somewhat diflerent means for mounting the cross member.

In this modification a securing pad "I is secured to the inner face of the cap 51' of the bearing 28' at each end of the cylinder, as by means of screws I12. Such securing Dads may be pro- .vided for each of the platecylinders of the printing press and may remain permanently in place.

A bracket I13 (Figs. 13, 14 and 15) is secured to each of the pads, the brackets and parts thereon at the respective ends of the cylinder being oppositely formed, the parts being; however, desighated by similar reference numerals.

The bracket has a foot I14 which rests upon threaded connection I82 with the pad for clamping the bracket to the-pad.

-The bolt I11 has a knob I83 fixed thereto. A helical spring I84 is located in a hole I85 in the outer end of the bracket, between the bottom of said hole and said knob, for normally urging the bolt outwardly so as to withdraw its screw end into the hole I8I when releasing the bracket.

The bracket has a wing I88 (Figs. 13, 14, 15 and 16) provided with an arcuate slot I88 concentric with the axis of the plate cylinder, preferably when in off-impression position. Locating plates I80, I8I, are at the-respective sides of the wing, slide faces being between said plates and said wing. g

A stud I82 has a middle portion which fits accurately against opposite walls of the slot, a threaded end I83 which extends through a hole I84 in the plate I80, and a threaded end I85 which extends through a hole I86 in the plate of which are received in notches I88 in the plate I90 for preventing turning oi.- the stud. A nut 20! is threaded over the threaded end 195 for clamping the plates, the wing and the nuts together, the middle portion of the stud being slightly shorter than the depth of the slot.

Each end of the cross member is provided with a plug 205 having a reduced inner end 206 forming an annular shoulder 201, and the end,

t i forming an annular shoulder 2 provided with locating pins H2. The locating pins are received in locating holes H3 in the plate I90, and this plate is provided with a hole 2| 4 in which the reduced outer shank of the stub fits.

A bolt 215 is located in a hole M6 in the plate ml and is threaded in a threaded end hole 2 in the plug for clamping the plate [9| to the .outer end of the plug. The reduced outer end of the plug is of just sufiicient length to provide a sliding fit between the plates I90, IM, and the wing W8 when the bolt M5 is in clamping position. This permits the respective ends of the cross member to be adjustably positioned on the the cylinder.

" .as the dead line in the printing parlance.

This enables the respective ends of the cross member to be definitely located with relation to each other, and also enables the cross member with the parts, thereon, including the indicating means 'toibe shifted bodily about the axis of the cylinder for accurate relation between the linear indicator 4] extending "lengthwise of the cylinder and the scales at the respective ends of the cylinder, and for accurate relation between ,the register bars 953 and the scales at the respective ends of the cylinder.

In operating this improvement to register the ,printing plates of a form on a printing cylinder of a rotary printing press, the printing plates are registered according to dimensions. given on a lay-out sheet, on which the desired positions of the register marks of the various printing plates are denoted at given distances from the zero points of the respective scales.

The zero points of the scales 4i about the cylinder are preferably in a line close to but free of the outer extremities of the sheet gripping ends of the grippers on the impression cylinder when at closest approach to the plate cylinder in their revolutions. This line is known In the present improvement the distances for the respective printing plates about the cylinder are. marked on the lay-out sheet as distances of the register marks thereon from said deadline.

The zero point for the scale 49 is at the outside edge of the scale band M, at the feed end 4 or operator's end of the plate cylinder, although the notations on this scale begin at 2 (Fig. 11) as this isone of the lowest values employed in the exemplifying machine. The desired posiitions of the printing plates arranged'lengthwise of the cylinder are marked on the lay-out sheet as distances of their register marks from such zero point corresponding with graduations on the scale 49. r

The scales may be in inches or other kinds or linear measurement. They are represented in inches, and in practice have very small subdivisions for accuracy in adjusting the positions of the printing plates.

The plate cylinder 2| is rotatable for registry of any value on its scales 4| with the register marks or pointers I55 or with. the linear indicator 4'! as by means of an electric motor 22!, (Fig. 4), which may be. a reversible electric motor for rotating the cylinder in opposite directions for accuracy of such registry. This electric motor may be the usual driving motor for the printing press.

The electric motor has drive connection 222 with ashait 223; which has a bevel pinion 224 rotating therewith, and which meshes with a bevel gear225 on a cross shaft journaled in the machine frame. A spur pinion 226 rotates with the bevel gear and meshes with a spur gear 22'! on a cross shaft journaled in the machine frame. A spur pinion 228 rotateswith the spur gear 221, and meshes with a spur gear 229 fixed to the axis of the trunnion 230 of the impression cylinder 29 of the printing press.

Each of the plate cylinders has a spur gear 23l fixed to its trunnion 26, the gears 23! meshing with the gear 229, for rotating the impression cylinder and the plate cylinders atequal surface speeds.

The electric motor is electrically controlled by suitable electric switches having usual push buttons, as a push button 235 for'forward rotation of the'cylinders, a push button 235 for reverse rotation of the cylinders, an inching push button 231 for rotation of the cylinders only during manual pushing of the button for short steps of, rotation' of the cylinders, and a stop push button 258, for cessation of rotations of the cylinders.

An inker frame 239 having the inking rollers for the plate cylinders thereon, is shown in retracted position, leaving a space 248 for the operator between it and the cylinders of the printing press, the operator manipulating the registering means of the presentexempliflcation while in this space.

In the preferred embodiment of the invention exemplified in Figs. 1 to 12 inclusive, the arcuate' guides may remain secured to the bearings at the respective ends of the various plate cylinders, as they'do not interfere with the ordinary operation of the printing press. The cross frame,

preferably in assembled form, is placed across the plate cylinder on which for the moment it is desired to register printing plates.

. The shoes H are in withdrawn relation within the bodies of the respective heads, into which relations they have been placed by release of the device from the printing press when last registering printing plates thereon. The grooves .between the faces 55 and M on the respective headsare placed over the arcuate guides, and

ceive a row of the-printing plates in approximate registry with the position of the linear indicator 41.

Before firmlyclamping the shoes in place,

. theheads of the respective ends of the cylinder are manually shifted along their arcuate guides for placing the linear indicator 41, or the register marks or pointers of the register bars I53,-

or both, in registry with given values of the respective scales about the cylinder, so as to in- 10- 'sure parallelism of the linear indicator 41 with the axis of rotation of the cylinder.

Accurate adjustment between the register marks or pointers of the register bars, or the linear indicator 41 on the indicator frame, with given values of the scales 4I about the cylinder noted on the lay-out sheet, may be obtained by rotation of the plate cylinder by manipulation of the usual control buttons of the printing press, as the forward button 235, the inching button 231, the reverse button 236, and the stop the desired value of the scales about the cylin- 35 tering and clamping of the printing plates, and

der designated on the lay-out sheet may be obtained by either or both of said adjustments. When accurate adjustment has been obtained, the cylinder is allowed to be at rest during registhe heads are securely clamped to the arcuate guides.

'The row of plates on the sector of the plate cylinder thus brought under the indicator frame 40 is registered during this adjusted relation of the parts, the indicator frame being moved along the cylinder to positions of the respective plates in the row determined by registry of the linear indicator 5!) with the given values on the-scale 5 49 designated on the lay-out sheet.

In registering the printing plate it is shifted on the cylinder, as by means of the register hooks, so as to register its register marks 23 accurately with the crossing

linear indicators

41 and 48,

whereupon the printing plate is clamped in such positiorrby means of the register hooks.

Aftei a given row of plateslengthwise of the cylinder has been registered, the cylinder .is 'again 'rotated for bringing the next desired sector of the cylinder into the field of the indicator '.frame, and the parts again accurately adjusted iaccording to the next value designated on the lay-out sheet, whereupon the registry of the next row of printing plates may proceed, subsequent rows of printingplates being similarly registered.

The printing plates may be placed on their supports and may be proximately registered while the indicator frame is in raised position, the indicator frame-being placed in operative position for accurate registry of the printing plates. During the latter position of the indicator frame, the transparent sheets thereon are close to the register marks on the printing plate, and the linear indicators and the register'marks on the print- 70 ing plates are viewed through theopenings or windows in the arms of the indicator frame. The

printing plates are adjusted under the indicator frame while the latter is in operative position,

Upon registry of all the printing plates on the clamping action on the shoes H and turning the handles 93 for placing the shoes out of range of the arcuate slides, whereupon the registry device is readily removed from the printing press.

When employing the modified form exemplified in Figs. 13 to 16 inclusive, the respective bearings of the respective plate cylinders may be provided with the pads "I, which may be left in position for successive registries. The cross frame is positioned across the cylinder on which the printing plates are to be registered, the locating pins I15 being,placed in the locating holes I16 and the clamp bolts I11 being clamped for clamping the brackets to the frame of the machine.

The cylinder is rotated as hereinbefore described for bringing the value of the scales about the cylinder designated on the lay-out sheet into registry with the markers or pointers ofthe register bars, or with the'linear indicator 41 on the indicator frame.

If desired, this adjustment may be made for an approximation of registry and a more delicate registry may be obtained by releasing the clamp 7 nuts 2M so as to permit shifting of the cross or such cross member may be shifted bodily with the parts mounted thereon along the arcuate slots I89 for registering of the pointers or marks on the register bars with the scales 4| about the cylinder.

I claim: 1. In means for registering a printing plate on a printing plate supporting surface of a printing'press, the combination of a cross bar, releasable attaching means for releasably attaching the respective ends of said cross bar, to the frame of the printing press so that said cross bar extends cross-wise of said supporting surface, an indicator frame pivoted bodily about the axis of said cross bar so as to overhang said supporting surface bracketwise and arranged to be oscillated bodily on its pivot toward and from said supporting surface, said indicator frame provided with an indicator for registering the printing plate, and a stop at said cross bar acting at the pivotal end of said indicator frame to stop pivotal movement of said indicator frame toward said supporting surface whereby to position said indicator frame in operative position spaced substantially the thickness of the printing plate from said printing plate supporting surface and thereby placing the indicator on said. indicator frame in indicating relation with said printing plate.

2. In means for registering a printing plate on a printing plate supporting surface of'a printing press, the combination of a cross bar, releasable attaching means for releasably attaching the respective ends of said cross bar to the frame of the printing press so that said cross bar extends crosswise of said supporting surface, an indicator frame pivoted about the axis of said cross bar and arranged to be oscillated on itspivot toward and from said supporting surface,

, said indicator frame provided with an indicator for registering the printing plate, and a plurality cator frame at a plurality of positions toward said supporting surface, one of said positions being a. position of said indicator frame spaced substantially fromsaid supporting surface for hand manipulation under said indicator frame and another of said positions being the operative position of said indicator frame spaced substan- ,tially the thickness of the printing plate from said printing plate supporting surface to place the indicator on said indicator frame. in indicating relation with said printing plate.

3. In means for registering a printing plate on a movable printing plate supporting surface of a printing press having a scale at each' side thereof moving therewith, the combination of a cross bar, releasable attaching means releasably attaching the respective ends of said cross bar to the frame of the printing press so that said crossbar extends crosswise of said supporting surface, register bars extending from the respective ends of said cross bar, means for adjustment of the respective ends of said cross bar for registry ofsaid respective register bars with said respective scales, an indicator frame pivoted bodily bracketwise about the axis of said cross bar and arranged to be swung bodily on its pivot toward and from said supporting surface, said indicator frame provided with an indicator for registering the printing plate, and a stop at said cross bar acting at the pivotal end of said indicator frame to stop pivotal movement of said indicator frame toward said supporting surface whereby to position said indicator frame inoperative position spaced substantially the thickness of the printing plate from said printing plate supporting surface and-thereby placing the indi- ,cator on said indicator frame in indicating relation with said printing plate.

In means for registering a printing plate on the printing plate supporting surface of a plate cylinder journaled in the frame of a printing press, the combination of a bracket at each end of said cylinder, releasable attaching means for I releasably attaching said brackets to said frame able bodily on said cross bar lengthwise of said cross bar, and a stop at said cross bar for said indicator frame to position said indicator frame at its pivotal end with its indicator in indicating relation with said printing plate on said supporting surface.

5. In means for registering a printing plate on the printing plate supporting surface of a plate cylinder journaled in the frame of a printing press, the combination of a bracket at each end of said cylinder, releasable attaching means for releasably attaching said brackets to said frame at the respective endsof said cylinder, a cross bar extending lengthwise of said cylinder, attaching means 'betweenits respective ends and said respective brackets, said. attaching means including adjusting-means to relatively adjust the respective ends of said cross bar for parallel ism of said cross bar with the axis of rotation of said cylinder, and an indicator frame provided I with an indicator pivoted bodily bracketwise on the axis of said cross bar and slidable bodily on said cross bar lengthwise of said crossbar for indicating relation with a printing plate on said supporting surface.

6. In means for registering a printing plate on.

the printing plate supporting surface of a plate cylinder journaled in the frame of a printing press, the combination of an arcuate guide on said frame at each end of said cylinder; each of said arcuate guides having. end guide faces and opposed guide faces comprising inner and outer arcuate guide faces, a slide for each of said arcuate guides having end guide faces and a coacting guide face at substantial-right angles thereto coacting respectively with saidflrst-named end guide faces and one of said opposed guide faces, a rotatable stem journaled on said slide, a keeper with which said stem has operative connection to move said keeper selectively into position to coact with the other of said opposed guide faces and out of range with all said first-named guide faces, and clamping means for axial movement of said stem whereby to clamp said arcuate guides between said first-named coacting guide face and said keeper.

7. In means for registering a printing plate on a printing plate supporting surface, the combination of a cross bar extending crosswise.- of said supporting surface, means for rotatively limiting said cross bar with relation to said supporting surface, a collar and an indicator frame slidable on said cross bar lengthwise of said :cross bar, said indicator frame pivoted about the axis of said cross bar so that its oscillating end is movable toward and from" said supporting surface, means to limit pivotal movement between said collar and said cross bar, and a stop between said indicator frame and said collar to position said indicator frame in indicating relation with a printing plate on said supportng surface.

8. In means for registering a printing plate on a printing plate supporting surface, the combination of a cross bar extending crosswise of said supporting surface, means for rotativcly limiting said cross bar with relation to said supporting surface, a collar and an indicator frame slidable on said cross bar lengthwise of said cross bar, said indicator frame pivoted about the axis of said cross bar so that its oscillating end is movable toward and from said supporting surface,

-means to limit pivotal movement (between said collar and said crossbar, and stops between said indicator frame and said collar to position said oscillating end of said indicator frame respectively distanced from said supporting surface and in indicating relation with a printing plate on said supporting surface.

9. In means for registering a printing plate on a printing plate supporting surface, the com bination of a cross bar extending crosswise of said supporting surface, means for rotatively limiting said cross bar with-relation to said supporting surface, a collar and an indicator frame slidable on said cross bar lengthwise of said cross bar, said indicator frame pivoted about .the axis of said cross bar so that its oscillating end is movable toward and from said supporting surface, means to limit pivotal movement between said collar and said cross bar, and latching means between said indicator frame and said collar to position said indicator frame in a plurality of angular relations to said supporting surface.

10.In means for registering a printing plate on a printing plate supporting surface, the combination of a cross bar extending crosswise of supporting surface, means for rotatively posibit?) tioning said cross bar, a registering scale extending lengthwise of said cross bar, an indicator frame provided with a hub about said cross bar slidable lengthwise of said cross bar, said indicator frame pivoted about the axis of said cross bar so as to oscillate said indicator frame substantially perpendicularly to theplane of said supporting surface, and means for rotatively positioning said indicator frame on said cross-bar so as to support said indicator frame in registering relation to said supporting surface, said last-' named means located solely at the pivotal end of said indicator frame, and said indicator frame provided with an indicator for a printing plate on said supporting surface and an indicator related thereto on said hub arranged to register with said scale.

11. In means for registering a printing plate on a printing plate supporting surface, the combination of a cross bar extending crosswise of said supporting surface, means for rotatively positioning said cross bar, a registering scale extending lengthwise on said cross bar, a registering scale at, substantial right angles thereto along said supporting surface, an indicator frame provided with a hub about said cross bar slidable lengthwise of said cross bar so as to move said indicator frame. crosswise of said supporting surface, said indicator frame pivoted about the axis of said cross bar so as to oscillate said indicator frame substantially perpendicularly to the plane of said supporting surface, and means between said hub and said cross-bar solely at the pivotal end of said indicator frame rotatively positioning said indicator frame at registering distance from said supporting surface, and said indicator frame provided with indicators arranged to be registered withsaid respective scales and for registry of a printing plate on said printing plate supporting surface therewith.

12. In means for registering a printing plate on a printing plate supporting surface, the combination of a cross bar extending crosswise of said supporting surface above the plane of said supportingsurface, a scale extending along each side of said supporting surface at substantial right angles to said cross bar, a register bar on each end of said cross bar extending therefrom at an angle to the plane of said supporting surface and arranged to register with said respective scales, and an indicator frame provided with an indicator extending crosswise of said supporting surface, said indicator frame having sliding connection with said cross bar so as tobe slidable lengthwise on said cross bar for registry of said indicator with said scales and for registry of a printing plate on said supporting surface with said indicator.

13. In means for registering a printing plate on the printing plate supporting surface of a plate cylinder journaled in a frame, the combination of a crossbar extending crosswise of said supporting surface above the plane of said supporting surface, means for supporting the respective ends of said cross bar on said frame, a cross scale extending lengthwise along said cross bar, a side scale extending along each side of said supporting surface at substantial right angles to said cross bar, a-register bar on each end of said cross bar extending therefrom at an angle to the plane of said supporting surface and arranged to register with said respective side scales, an

indicator frame, crossing linear indicators there on extending adjacent to said supporting surface at right angles to said respective scales for on the printing plate supporting surface of a plate cylinder journaled in a framefthe combination of a cross bar extending crosswise of said supporting surface, supporting means on said frame for the respective ends of said cross bar comprising adjusting means for adjusting said cross bar into parallelism with the axis of rotation ofsaid cylinder, a scale extending along each side of said supporting surface at substantial right angles to said cross bar, a register bar on each end of said cross bar extending therefrom at an angle to the plane of said supporting surface and arranged to register with said respective scales by adjustment of said adjusting means,

and an indicator frame provided with an indicator extending crosswise of said supporting surface, said indicator frame having sliding connection with said cross bar so as to be slidable along said cross bar for registry of said indicator with said scales and for registry of a printing plate on said supporting surface with said indicator.

15. In means for registeringa printing plate on the printing plate supporting surface of a plate cylinder journaled in a frame, the combination of a crossbar extending crosswise of said supporting surface; a scale extending lengthwise thereof, a scale extending along each side of said supporting surface at substantial right angles to said cross bar, means for adjusting the axis of said cross bar into parallelism with the axis of said cylinder, and an indicator frame provided with crossing linear-indicators extending at right angles to said respective scales, said indicator frame having sliding connection with said cross.

bar so as to be slidable alongsaid cross bar for registry of said indicators with. said'respective scales and for registry of a: printing plate on said supporting surface with said indicators.

16. In means for registering a printing plate on the printing plate supporting surface of a plate cylinder journaled in a frame, the combination of a cross bar extending crosswise of said supporting surface, a scale extending lengthwise thereof, a scale extending along each side of said supporting surface at substantial right' angles to said cross bar, means for adjusting the axis of said cross bar into parallelism with the axis of said cylinder, an indicator frame provided with crossing linear indicators extending at right angles to said respective scales, said indicator frame having sliding connection with said cross bar so as to be slidable along said cross bar for registry,

of said indicators with said respective scales and for registry of a printing plate on said supporting surface with said indicators, said indicator frame pivoted about the axis of said cross bar for tilting the bodyof said indicator frame away from said supporting surface, and latching means between said cross-bar and the pivoted end of said indicator frame for holding said indicator frame in tilted position.

17. A cross frame, an indicator frame for a printing plate registering mechanism, pivoted at one of its ends on the cross frame so as to be bodily osclllatable bracketwise about its pivotalaxis toward and from the printing plate'supporting surface of the printing plate support and adjustable bodily laterally on its pivotal axis into registering positions.

18. A cross frame, an indicator frame for a printing plate registering mechanism, pivoted at one of its ends on the cross frame so as to be bodily oscillatable bracketwise about its pivotal axis toward and from the printing plate supporting surface of the printing plate support and adiustable bodily laterally on its pivotal axis into registering positions, and a stop at its pivotal end to limit its oscillation toward said supporting surface to spaced distance of substantially printing plate thickness from said supporting surface.

19. In combination, a cross frame, an indicator frame for a printing plate registering mechanism pivoted to the cross frame at one of its ends bracketwise so as to be bodily oscillatabie about its pivotal axis toward and from the printing plate supporting surface of the printing plate support and adjustable bodily on its pivotal axis into registering positions, and a plurality of angularly spaced stops between said axis and the pivotal end of said indicator frame respectively for holding said indicator frame in substantially spaced relation from said surface for hand manipulation of the printing plate between said indicator frame and said support and for limiting oscillation of said indicator frame toward said supporting surface to spaced distance of substantially printing plate thickness from said supporting surface for registry of the printing plate.

20. In positioning means for the indicator frame of a registering device, the combination coacting with the other of said opposed guide faces, a stem on said slide having endwise connection with said keeper and provided with means wherewith to move said keeper into and out of range of said first-named guide faces, and means acting on said stem to draw said keeper and said additional guide face toward one another for clamping said first-named opposed guide faces between the same.

21. In registering means, the combination of an indicator frame provided with indicators arranged at substantial right angles to each other for registry with scales extendingat substantial right angles to each other along margins of an article supporting surface of a support, means whereby to pivot said indicator frame at one of its ends on a stationarily positioned axis and to slide said indicator frame laterally parallel with said axis bracketwise crosswise of said surface, and means solely between said axis and the pivotal end of said indicator frame acting solely on the pivotal end of said indicator frame for supporting said indicator frame in spaced relation from said supporting-surface and so as to move laterally across the article on said surface.

' LESLIE W. CLAYBOURN.