US2187293A

US2187293A - Registering and clamping mechanism

Info

Publication number: US2187293A
Application number: US83424A
Authority: US
Inventors: Wood Henry A Wise; Perry R Long
Original assignee: Wood Newspaper Machinery Corp
Current assignee: Wood Newspaper Machinery Corp
Priority date: 1936-06-04
Filing date: 1936-06-04
Publication date: 1940-01-16
Anticipated expiration: 1957-01-16

Description

Jan.` 16, 1940. H. A. w.v woon Erm.

REGISTERING AND CLAHPING MECHANISM 2 Sheets-Sheet Filed June 4, 1936 H. A. w. woon Er AL REGISTERING AND CLAHPING MECHANISM Filed June 4, 1936 2 SheetsSheerI 2 birilli/4 vwwm. W hw x* NN ,uw @Kw Jan. 16, 1940.

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` Patented Jan. 16,7119401` i f i Um'reosrares l i REGISTERING AND CLAMPNG MECHNisM Henry A.` Wise Wood, lNleaffYork,A and Perry R. .Y Long,` Larchinont,N.` Y., assignors to TheWood Newspaper Machinery Corporation, New York,

` l N-,XQacorpon-ation of Virginia i i Application June .4. `19st., serai No. sam i 18 Claims." (Cl. 101453,78)`

`'Ihe `present' `invention relates' `to meansyfor insuring proper register of l printing plates` in multi-color presses.` l l i In a Webpress Where plateson different cyl- 5l inders fare arranged to `rnake color imprints on the samev page, itis obvious that `the plates must be very carefuliy'adjusted with respect `to each other `in order: to insure accurate register of the several imprints.

`ll In a copending application"oilienry A. Wise Wood. SerialNo. 535,165\,led May 5, 1931, there is" disclosed amethod of andvmachneforpreregistering 'a set of printingtlplates and notching themso that when'applied to the cylinders` of 1li the printing press in `cooperation `,with `fixed ref-` erence points `on said cylinders accurate register maybe obtained'without thenecessity of using the printingpress itself as a registeringmachine.

The Vpresent 'invention `has `for an object `to fmprovide for additional adjustment .oi a `plate after it hasbeenmounted on the cylinder so as to take care of variations in `register `thatinay occurlduring the running ofthe `press.`

26. `der and the press has fbeenoperated there is a tendency for the plates to grow owingto the repeated passage of theplates through the irn-` pression point. l Manifestly, if this Igrowing of the plates isuniformgor vexactly alike. in all the l. `3l), plates printing a "combination `offlcolors there v44) l Instead ofm'ounting the plate directly on the cylinder it is within thepurview of our invention to employ a vplate carrieror, turtle on whichV the plate may besecurely clamped,` the turtle being then mounted on the plate cylinder of the 45 press andclampedfthereon injregistered position.

`We contemplate the usent plates which have been preregisteredas, forleianfiplez` in the Inan-` ner described in said copending application, Se-` rial No. 535,165,` and to `this 1 end our invention l 50 comprises af turtle provided with fixed gauges,

suchyfor example, as V blocks adaptedtofit the notches cut in, the plate loyv a preregistering machine,` so` as to insure the `propergloc'nation of the `plateon the turtle. V

55 It is afurtherjobdect of our inventionto pro- After the plates have beenplaced on aprinting cylin` vide a` plate cylinder with Ineanswf'or mounting a turtle thereon in a `predeterminednormal posi-` .tion and also to `provide meansl-lfor adjusting the `turtle either longitudinally or circunrierene tially, o1'.both,.\vith respecttosuch `normal posi-` .5

tion, so as topermit kof readjusting `the register i destroyed by the action described above; i l `Other objects of `our invention will appear in the following description of a preferred em'bodlly ment Yand thereafter the noveltyand scope ofthe l0 i inventionrwlll be pointed out in the claims. `Intheaccompanying drawings;

l 'Figure 1` is` a ragniental end View ofa printing cylinder With our invention applied thereto;

Fig,2j is al View in longitudinal section taken 15H l `on the line 2-2 of Figi. l, `showing fawpair of printing plates and .how each is clamped-to a Nliig.` 3 Iisa vewin longitudinal section taken on the 'line 3-3` o`f Fig. l, showingineans for 29 clamping., the turtles `upon the cylinder; t

Figi` 4 isa View in. section `taken on the line 4--45 of Fig. 1,*showing means for shiftingan` l outside turtle longitudinally of the cylinder;

Fig. 5 is al similar View in sectionftaken on the line` 5 5 or Fig. l,` showing means for shiftl ing an inside turtle longitudinally; .l

Fig. 6 is aview in section taken on the line `l-- of Fig. 1.showing means for shifting the" l turtles individually in.` circumferential direction;

and

Fig. 7 isa fragmental plan View looking in `the direction" of,` the arrows l-f'l in Fig. l; with certain parts` of the printing `plates and the turtles brokenaway to reveal details oftthelongitudinal and `oircurnierential adjusting means.

Our invention is shown `in the drawings as applied to a printing cylinder it whichis preferably long enough to `carry four printing plates lengthwise on` each diametrichalf `or the `cylin- 0 der, but.onlytwoplates .and .a iragrnento a l third arel'shownA inthe drawings;` It will beun-` l derstood` p that the outside and inside, printing plates I2and` 12aA adjacent one endo the cylin der kare adjustable; by mechanism operated `at 4,5`

said end, while the outside and inside plates adjacent the opposite andere adjustable lby identical mechanism" from said opposite end of .l the cylinder` Each printingplate is mounted on a turtleof" .5-0

substantially "semicylndrieal forni. l Although the turtles are all of identical construction and hence are interchangeable,` for convenience, the

one whim.carries\the` outsidev plate l2 is" indil cated 'byl the reference numeral i4 andthe one PATENT-oma `which carries the inside plate l2a by the reference numeral 14a. The plates are clamped to the turtles by means of clips l5 which areslidable in T slots lI6 formed'in opposite ends of the turtle. The clips are arranged in opposed pairs engaging opposite ends ofthe printing plate andeach pair is'moved into and outl of clamping position by means of a rod l1 threaded into the clips with right and left hand threadsrespectively. Each rod l1 is formed with a square socket |8at each end adapted to receive a'wrench with which the rod maybe turned to tighten up'the clips.v As shown in Fig. 2 each clip is formed with a lip adapted to overlapthe beveledv arcuate edge ofthe plate. It will be observed by an inspection of-Fig. 1 that there are eight clips l5 at each end of each l printing plate.

Before the plates are applied to the turtles they are brought to proper relative register by any suitable means, such as the preregistering machine described in said copending application and in each plate a V shaped notch i9 is cut in each arcuate end of the plate. As shown, particularly in Figs. 6 and '7, each turtle isprovided with a pair of opposed vV blocks 20 adapted to enter the notches I9 so as to locate the plate accurately on the turtle.-

Each turtle is undercut at opposite ends thereof `to form a bevelled rabbet 2| adapted to be engaged by four` opposed pairs of clamps which are y tted to slide 'in T slots 22 formed in the cylinder lio Ill.A A pair of clamps are indicated at 23 and 2 4,

in Fig. 3`,l for the outer turtle and are moved into and out of clamping position by a tubular clamping screw 25. This tubular screw has a shoulder 26 which bears against the outer end of the clamp 23 while acollar 21 bears againstthe inner end plied to tighten the clamps upon the turtle.

The inside turtle l4'a is similarly Secured be- ,tween four pairs of clamps 32 and 33. Passing 501i through each hollow screw 25 is a screw rod 34 provided at its outer end with a squared head 36. This rod has a reduced extension 31 which passes through the clamps 32 and 33. A shoulder 38 is formed at the junction of the extension with the main body of the rod which bears against the outer end of the clamp 32. A collar 39 fixed upon the extension by a set-screw 40, bears against the inner end of the clamp 32. to hold the latter against longitudinal displacement with respect to the rod, although the rod may freely turn with respect to the clamp. The free end ofthe extension 31 has threaded engagement with the clamp 33 so that by applying a wrench tothe head 36 and turning the screw rod the clamps may be moved into or out of clamping engagement with the turtle. I

In order to center the turtle accurately with respect` to the cylinder, each turtle is provided with a transverse slot 42 (Fig. 7) adapted to be engaged by atongue or pin 43projecting from the slide 44 (Fig. 4) which is movable longitudinally of the cylinder in a recess 45 formed in the face ofthe cylinder. To adjust the slide longi- I tudinally we provide arod 46 which is tted to turn in a longitudinal bore infthe cylinder and which has threaded engagement with the slide 44. This rod is maintained against longitudinal displacement by a shouldered head 41 at its outer end and by an opposed collar 48 which bears against the outer end wall of the recess 45. The collar is secured to the rod 46, at desired adjustment, by a set screw 49. Obviously, by turning the rod 46 the turtle and the printing plate it carries may be adjusted longitudinally.

As shown in Fig. l, the rod 46 carries a calibrated disk 50 and there is a reference point 5| marked on the end of the cylinder so that the position of the turtle longitudinally of the cylinder may be adjusted to a normal position by turning the rod 46 until a zero point on the calibrated disk registers with the reference point 5I. When the turtle has to be adjusted out of normal position to take care of any displacement or growing of the plate carried thereby, the calibrations will aord a convenient means for determining how much the head 41 should be turned to restore the plate to proper registration in longitudinal direction.

A similar adjustment is provided for the inside printing plate |20.. In Fig. 1, I show the head 52 of a screw rod 53 for longitudinally adjusting the turtle l4a.. The screw rod 53, as shown in Fig. 5, extends through a bore in the cylinder into a recess 54, similar to the recess 45, and hasthreaded engagement with a slide 55 which bears a pin 56 adapted to engage a transverse slot 51 in said inner turtle. The head 52 may also be provided with a calibrated disk 59 and the end of the cylinder with a reference mark 60. It will be observed that although the slots 42 and 51 are not in alinement as the turtles are applied to the cylinder, nevertheless, they are symmetrically disposed with respect to the longitudinalr center lines of the turtles, so that either turtle may be turned end for end to bring the slot therein into position for engagement either bythe pin 43 or by the pin 56.

In order to provide for circumferential adjustment of the turtles, each turtle is provided along its longitudinal center line with a pair of diagonally disposed slots 62 which are adapted to be engaged by pins projecting from a slide adjustable longitudinally in the cylinder. The slide which controls the circumferential adjustment of the outer turtle I4 is shown at 64 in Fig. 6 and carries pins 63 engaging slots 62. This slide 64 is adjustable in a recess 65 formed in the cylinder and has threaded engagement with a tubular screw 66. The latter extends outwardly through a bore in the cylinder and is provided at its outer end with a'squared head 68. This screw is held against longitudinal displacement with respect to the cylinder by engagement of the head 68 with the outer end of cylinder I0 and by an Aopposed collar 69 secured to the sleeve by set screw 10 and bearing against the outer Wall of the recess 65.

The slide 12 which controls the position of the inner turtle 14a is similar in form to the slide 64 and bears pins 63a which engage the slots 62 of the inner turtle. The slide 12 has threaded engagement with a screw rod 13 which passes through the tubular screw 66 and terminates at its outer end in a square head 14. The rod 13 is prevented from longitudinal displacement with respect to the cylinder by a collar 15 secured thereto by means of a set'screw 16 and engaging the outer end of the recess 16 in which slide 12 is adjustable, the opposite end of this recess being engaged by the inner end of the rod 13.

` As` shown in Figpgl, ealibratione are marked oir theendof the cylinder aboutlthe head 68 so asto show `by reference toa pointer-.11 on said head Whether the pins 63 arerinjnormal positionfor the outer turtle No` andalso to .pvrovideaV gauge for` circumferential adjustmeht'ofs'aid turtle; A sini-` ilar gaugelforthe pinfswlajengaging theinside i turtle [4a isprovidedby"forming` calibrations on the faceof the headiil anda'pointer `lil on the head-1l. .i

"Inoperation, the printingV plates` are iirst preregistered, and they are `then properly located onthe turtles by engagement of V blocks 2t with notches I9; after Whichthey are securely clamped to the turtles by-tighteningthe `screw` rods il. The

pins

43, 56, 63 and 63er 'are adjustedto normaipositiontytoerustingthe-heads 41 52 es and` 14 all-tol 'zero position; e rljhe turtles are then` mounted on` the cylindergilbeing properly centered bysaid pins, after which the screw heads 30 and 36 aire turned to clamp the' turtles fast.

Whenl` it is desirable to Vshift `any plate out of` normal `position,'the` turtle which carriesrit is unclampedbytuining screwheads 351 or as the casejmay loe. Then if `itloe desired to sh'ft the turtle-longitudinallythe `rod, 46 or the `rod 53, as the case ilmayfbe, is adjusted correspond" ingly. If, ontheiotlierhand, it be'desired toadjusta turtle circumferentially, the tubular rod 61, Vor, ro'd 13, is adjusted. Owing to the in# clination of `the slots t2,` longitudinalmovement ofthe pine engaging them will result in circurn ferential movement of the turtle. `It will be oba vious that] when aturtle is adjusted longitudinally bymea'ns ofpin im` or 53 `it will be oolffged to move circumferentially aswell, owing to `the engagement of pinsl or 63a with its inclined slots 52butafter`the longitudinal adjustment has beenwsecured anyfcircumferential displace-` as the case maybe. y "The clamp screwsfand 3l `are `somewhat loosely mounted longitudinally of the cylinder tc'perrnit of proper registration of the plate. As

nientmay be corrected byturning or shown in Fig.` 3, pins 1S, 8U ande! are provided intli'e floor of the T slot';` These are so arranged that when theturtle I ll isunclamped, the clamped screw 3031Wil1 "move i the` inner clamp 2li toward therigfl'mfasjviewedini'Fig. 3,`until the pin Bil leased.

isengaged and thereafter the clamp `lill willbe compelled tomove outwardly, e orftoward the left, until the pin 'i9 is encountered. The clamps are thus spread apart-*sufciently to release the tur tle aand-permitits` removal :from `the cylinderp Similarlywhen `theturtle Illa is unclamped the clamping screw;3i;isoperable.to move the clamp 33 until it,` engages a pin` Bi Iafter 4which further turning the clamping screw `will move clamp 3.2 toward theeleft until the turtle is `re While we have descienda preferred embout ment of our inventioinit will be understood that this merely `illustrates one form of our invention,

to which We are not limited, and lthat we re`` i by said blocks.4

`justed positions. i

said netchesto locate the position of the plate e relatively to the cylinder; means for adjusting the blocks on thecylinderwith respect to a predetermined normal position, and means for clamping the plate fastwith respect to the cylinder in` any position determined by said blocks. l

of means for registering and clamping a printing plate relatively to vsaid cylinder, said platebeing formed with opposed registration notches, 'said Ille` means comprising a pair of opposedfbloclrs` niounteclj enthe cylinder and adapted to enter 2. Thecombination"`witl1` a printing cylinder,`

said notches to locate the position of the plate relatively to theV cylinder,` means for adjusting the blocks `on; the cylinder, means `for indicating tneposition of the blocks with respect to a pre-` determined `normal position* and means for clamping theplate fast with respect to the cyl-V inder in any positionfdetermined by `said blocks.`

3. The combination with `a printing cylinder, of means vfor `registering and clamping a print `ingplate, said plate being formed with opposed registration"notches, said means" compri-singe. pair of` opposed blocks mounted on the cylinder *and `adapted to enter said notches to `locate the position of the plate, means for shifting the blocks longitudinallyof the cylinder, means for shift'- ing the blocks circumferentially of the cylinder; means `for indicatingthe position Iofthe blocks with 'respect to a predetermined normal position, andmeans for `clamplngthe plate fast `with re spect tothe `cylinder in any ,position determined 4. A registering and clampingmechanism for printing' presses comprising a printing cylinder',

a printingplatetherefor, gauge means for locating said plate in' predetermined normal position with respect to the cylinder, means for ad justing said plate "longitudinally with respect to said normal position, `means for adjusting the plate circumferentially with respect to said nerf` mal positiomand clamping means for `securing the `plate with respect to the cylinder either in said normal position or in any of such adjusted positions. i

5. A registering `and clamping mechanism `ior printing presses comprising aprinting cylinder, `a `printing plate thereforjgauge means for locating saidplate in predetermined normal pcs# tion withrespect totheycylinder,means for adjusting the plate longitudinally with respectto said normal position, means for adjusting the plate circumferentially with respectto said non` mal position, clamping means for fixing the `plate with respectto the cylinder eitlie'rin said normal position or in anyof such `adjusted positions,` and means for indicatinggtlfif-,` degreeof any adjust-` Witl'i `respectto said normal,

ment of the plate position; i 3 4. '6; Auegistering" and clamping mechanism for printing presses` comprising afprinting cylinder,`

a pair of printing 'plates adapted to be `nrmunled end-`to`end lengthwise with respect tothe 'cylinder, gauge means `for accurately locating each plate in predetcrmined` normal position, means operable from one endof the cylinder for adjusting each plate individually inlongitudinal di.- rection' with respect to said normalpcsition, ad ditional means also operable fromthe same end of thev cylinder for adjusting `each plateindvidually in circumferential .direction with respect Y each'plate` fast with `respect to the `cylinder either in said normallposition or .i to said normal position, and means for clamping i '7. A registering and clamping mechanism for `printing presses comprising a printing cylinder, a pair of printing plates adapted to be mounted end-to-end lengthwise with respect to the cylinder, gauge means for accurately locating each plate in predetermined normal position, means operable from one end of the cylinder for adjusting each plate individually in longitudinal printing presses comprising a printing cylinder,

a turtle adapted to be mounted thereon and providing a support for a printing plate, means on the turtle for accurately locating the printing plate in predetermined position thereon, clamps adapted to secure the plate fast to the turtle in said position, cooperating means on thevv cylinder and turtle and adapted when in predetermined position to locate the turtle in a normal position on the cylinder, means for adjusting the cooperating means to shift the turtle longidinally and circumferentially with respect to said position, and means for clamping the turtle fast to the cylinder either in said normal position or in the adjusted position. n i

9. A registering and clamping mechanism for printing presses `comprising a printing cylinder, a turtle adapted to bemounted thereon and providing a support for a printing plate, means on the turtle for accurately locating the printing plate in predetermined position thereon, clamps adapted to secure the plate fast to the turtle in said position, cooperating means on the cylinder and turtle'and adapted when in a predetermined position to locate the turtle in a normal position on the cylinder, means for adjusting certain of the cooperating means to shift the turtle longitudinally, means for adjusting other of` the cooperating means to shift the turtle circumferentially with respect to said position, and meansfor clampingthe turtlefast to the cylinder either insaid normal position or in any such adjusted position.

1.0. A registering and clamping mechanism for vprinting presses comprising a printing cylinder,

a turtle` adapted tov be mounted thereon and `providing asupport for a printingplate, means adapted to secure the plate fast to the turtle Ain said position, cooperating means on the cylinder and turtle adapted when in predetermined normal 4position to locate the turtle in a normal position on'the cylinder, means for adjusting certain of the cooperating means to shift the turtle longitudinally, means for adjusting other of the cooperating means to shift the turtle circumferentially `with respect to said position, means for clamping the turtle -fast to the cylinderreither in said normal position or in any such adjusted position, and means for indicating the position 'of said cooperating means with respect to said predetermined normal position.

11. A registering and clamping mechanism for printing presses comprisingv a printing cylinder, a pair of turtles adapted to bemounted thereon end-to-end lengthwise of the cy1inderleaeh turtle providing a support for a printing plate, means for locating and clamping the plate in a predetermined position on the turtle, cooperating means on the cylinder and each of the turtles for accurately locating each turtle in a predetermined normal position on the cylinder, means operable from one end of the cylinder for adjusting each turtle individually in longitudinal i turtle providing a support for a printing plate,

means for locating and clamping the plate in a predetermined position on the turtle, cooperating means on the cylinder and each of the turtles for accurately locating each turtle in a predetermined normal position on the cylinder, means operable from rone end of the cylinder for adjusting each turtle individually in longitudinal direction with respect to said normal position,

`separate means also operable from one end of the cylinder for adjusting each turtle individ- -ually in circumferential direction with respect to said normal position, means for clamping each turtle in said normal position and also in any such adjusted position, and a gauge associated with each adjusting means for indicating the degree of adjustment of each turtle with respect to said normal position.

l13. A registering and clamping mechanism for printing presses comprising a printing cylinder, a turtle adapted to be mounted thereon and pro viding a support for a printing plate, means for accurately locating and clamping the plate in predetermined position on the turtle, cooperating means on the cylinder and turtle comprising a pair .of pin-and-slotconnections therebetween for locating the turtle in a predetermined normal position on the cylinder, one of the slots being disposed transversely to the longitudinal extent of the cylinder and the other slot being disposed at an angle thereto,.whereby upon relative longitudinal movement of the pin with the rst named slot the turtle will be adjusted longitudinally and upon relative longitudinal movement of the other pin with said other slot the turtle will be moved circumferentially, means for effecting such relative movement of each pinand-slot connection individually, and means for clamping the turtle to the cylinder at any adjustment of the pin-and-slot connections.

14. A registering and clamping mechanism for printing presses comprising a printing cylinder, a turtle adapted to be mounted thereon and providing a support for a printing plate, means for accurately locating and clamping the plate in predetermined position on the turtle, cooperating means on the cylinder and turtle comprising a pair of pin-and-slot connections therebetween for locating the turtle in a predetermined normal position on the cylinder, one of the slots being disposed transversely to the longitudinal extent of the cylinder and the other slot, being disposed at an angle thereto, whereby upon relative movement of the pin with the rst named slot the turtle will be adjusted lon- ,2,187,293` n n Y `ju`sting each lug Vlongitudinally in 'the cylinder, l

gitudinally and upon` relative `movement cf thev other pin-and-slot the turtle will be moved circumferentially," means for effecting `suchrelai eating :a normalV position of each pin-and-slot tive movement of` each pin-and-slot connection Y individually, means for `clamping the turtle to the/cylinder at any adjustment of the pin-andslot connections,` and gauge i means for `indiconnection. i i i n 15.\A registering and clamping mechanism for printing presses comprising a printing cylinden'.

\ a turtle adapted to be mounted thereon and providing a supportfor a printing plate, means on the turtle for accurately locating the'platein predetermined position thereon, clamps adapted to secure the plate fast to the turtle, the turtle being formed with a pair of slots, lugs mounted to slide inthe cylinder and adapted to engage` `the slots respectively, means for individually adjusting each lug longitudinally in the cylinder,

one of the slots being disposed transversely with respect to the direction ofmovement of the lugs `printing presses comprising a printing cylinder, `a `turtle adapted to be mounted thereon and pro- `viclinga support for a printing plate, means on the turtle for accurately locating the plate in predetermined position thereon, clamps adapted to secure the plate fast to thegturtle, the turtle being formed with a pair of slots', lugs mounted i toslide in the cylinder and adapted to engage l the slots respectively, means for` individually ad-` "mined by the gauges.

one of the slots being disposed transversely with respect to the direction of movement of the lugs l and the other slot being disposed diagonally with respect to `such direction of `movementof the lugs whereby upon movement oflthe `iirst lug the "turtle will be adjusted longitudinally and upon i movement of the second lug the turtle `will `be `adjusted circumferentially, clamps adapted` to secure the turtle fast to the cylinder at any adjusted position, and gauge means vadapted to indicate a normal position of the lugs.

17. A registering and clamping mechanism for l yprinting pressescomprising a printingcylinder, an adjustable gauge adapted to locate a" printing plate longitudinally with respect tothe cylinder, a gauge `adapted to adjust the plate circumferentially with respect to the cylinder,

means for adjustingfone of the gauges on the `1 cylinder to move the plate axially, and means foradjusting the other gauge to` movethe plate circumferentially and axially, and clamping means for xing the printing plate in any position determined by either gauge.

18. A registering and clamping mechanism for printing presses comprising a printing cylinder, y

an adjustable gauge adapted to locate a printingplate longitudinally with respect to the cylinder, a gauge adapted to adjust they plate 'circumferentially with respect to the` cylinder, `means for adjustingone of the gauges on the l cylinder to move the plate axially, and means for adjusting the other gauge to move the platercircumferentially and axially, means for indicating the position of the gauges with respect to a predetermined normal position, and clamping means `for iixingthe plate in any normal position deter- HENRY A. WISE Woon;v PERRY R. Loire.`