US1934881A - Intaglio-engraved-plate, flat bed printing press - Google Patents

Description

NOV- 14 1933; 0, A QUAYLE, SR 1,934,881

INTAGLIO `ENGRAVED PLATE, FLAT BED PRINTING PRESS Filed Jan. l2, 1932 7. Sheets-Sheet 1 A Trae/vs Ys Nov. 14, 1933. Q ,1 QUAYLE, SR 1,934,881

INTAGLIO ENGRAVED PLATE, FLAT BED PRINTING PRESS Filed Jan. 12, 1952 7 Sheets-Sheet 2 ATTORNEYS NOV- 14, 1933. f Q A QUAYLE, 5R 1,934,881

INTAGLIO ENGRAVED PLATE, FLAT BED PRINTING PRESS A Tron/vf: Ys

NOV- 14, 1933. 0'` A, QUAYLE, 5R 1,934,881

INTAGLIO ENGRAVED PLATE, FLAT BED PRINTING PRESS Filed Jan. l2, 1932 '7 Sheets-Sheet 4 Y MMM/7W Arron/v5 Ys Nov. 14, 1933. o. A. QUAYLE, sR

INTAGLIO ENGRAVED PLATE, FLAT BED PRINTING-PRESS Filed Jan. 12, 1932 '7 Sheets-Sheet 5 /NvE/v r0.1? O//Ve/ Quay/e, 5r:

ATTO/ww: Ys

Nov. 14, 1933. o, A, QUAYLE, SR 1,934,881

INTAGLIO ENGRAVED PLATE, FLAT BED PRINTING PRESS Filed Jan. 12, 1932 7 Sheets-Sheet 6 /N vsN -r-on` O//Ver A @dag/e, /f

/ www A 7- roR/vs Ys Nov. 14, 1933. o. A. QUAYLE, sR 1,934,881

INTAGLIO ENGRAVED PLATE, FLAT BED PRINTING PRESL Filed Jan. l2, 1932 7 Sheets-Sheet 7 m 'WI nini /Nz/w TOR U//Ver A @yay/e, 5f.

52 A TToRNE Ys e VVPatented Nov. 14,1933* "UNITED ,STAT-es" Application January 12, 1932; seria1'N0.5s6,179

' 12 claims. (01.101-158) invention more particularlyrelates tointaglio-engraved-plate, 4flat bed printing presses and especially to the means for. rthe feeding, printing and delivery of Wet or dry paper in sheet,` 5 sheets or roll form. ,s y

Intaglio-engraved-plate, flat bed I printing presses are ordinarily so constructed as' .to require the manual feeding of sheets vof Wet'or dry paper of restricted sizes, and the sheets of paper so` fed mustoe sufficiently small in size to permit of their removal from the said plate While it is in motion. In orderthat the ink resulting from an impression shall not smudgel or otherwise offset from one impressionto another impression when the `1li said sheet is removed when delivery` occurs, the insertion of intervening or slip sheets between he printed sheets is necessary, all of which operations lare manuallyperformed.A The stacking .of Wet sheetsofpaper with interveningor slip sheets n which exclude theair from the Wet paper materially retards y the drying thereof Y whichV results in much delay andinconvenience. g

The several recited operations connethe speed Yat v.rhioh,printing may heperformed4 upon an `2l; intagliofengrayed-plate, fiat bed printing press lto a degree which `will afford thejoperator suincient timeeither to feed the sheet previous to taking an impression or to effect delivery ofthe sheet'vfrorn the intaglio-engravedmlate after the impression has been taken and while Ythe plate 'Ifheinsertion' of intervening o r slip sheets be-` tween each succeeding impression is likewisea tmanual operation which also materially llimits Tthe speed at which the printing maybe performed.

The main object of -my invention is that of providing a mechanical unit for them/feeding,

printing and delivery of wet or dry papervin sheet,

Ysheets or roll form on an intaglio-engravedplate .flat bed printing press in' such la manner that the paper isA-Vplaced in thepcssessionof said unit,

either mechanically or manually,v which unit re;

tains possession thereof duringthe printing, leaving the intaglio-engraved-plate in exactly the ratio with which the said printing takes place; Y said paper remaining continuously inpossession of said. feeding, printing `and delivery unit y'until 'the saidl paper is delivered printed side up in its proper position on a conveyor for drying.

. A further object of my invention is the delivery 'of ,said .sheetsfprintedxside up. upon thev carrier .which is so timed relatvelyttofthe printing of which- Fig. 1.1 -is ai fragmentary perspective view of the said sheet that the carrier delivers the paper to an adjoining device, preferably Va heating unit, where the wet paper and fresh ink from the irnpressionV are dried duringits travel through said Yheating unit. vUpon the enit of said paper from the heatingV unit, the same maybe stacked `by `the usual well-known jogging method of stacking without the use of interveningor slip sheets.

A` marked advantage resulting from the method of feeding, printing and delivery above referred 5 to, is` the uniformk registration in the printing ofthe said sheet vor sheets fromthe said intaglioengraved-plate.,oriplates. -A further advantage V'resulting from my invention is that sheets of comparatively large dimensions, when handled 4me- `70 ,chanically inthe manner referred to, are handled with dispatch and with far greaterspeed than has heretofore been possible,l avoiding,va s it does, the necessary stacking with intervening or slip sheets.A Y v f 75 Myinvention `will best *bev understood byy refer: ence tothe accompanying drawings in which I have illustratedua preferred` embodiment and in Fig. `1Y is `a side view partially broken away of a o portion of a printingpress embodying my invention.; e Y `Fig. 2 is an end view of Figli.; ,Fig. 3 is afsectional `side elevation, rpartially broken away, 0I" a portion of a printing press em hodyingwmyinvention.; n Y

V Il ig. Vvel is a sectional View takenalong the line 4'-4lof-Fig. 3;

Fig. 5 is asideviewof a portion of the machine which includes thejmpression roll andactuating190A4 mechanismv therefor;Y

VFig.` 6 lis .asectional elevation takenalongvthe line 6-#6 `offFig. '7;

Fig. 7 is avsection taken alongthe line 7.-'7 of lFig. 6V with the wheel for `thegmanual operation ofV the machine omitted; Y A v v Y .Figfis a ;letail` viewkof the'bearingblock for the impression' rolland arcam member associated therewith; A i* Y 'Y l e Fig. 9 is a side View 0f the mechanisms forrotating the impression roll after the printing plate vhas leftthe same;

4 Fig. :10 is a detailA View ofthe grippingrelement and cam membersrassociated `therewith for releasing 4 the same;

operating'means'for the grippingelements;V Fig. v12 isA a sectional side View. of the gripping element-'and the releasing cam for the same;

Fig. 13 is a detail view of the driving means for a conveyor for removing the printed paper;

Fig. 14 is an end View partially broken away, of one of the sprocket wheels which are actuated by the impression roll and illustrating a portion of the platenk and printing plate mounted thereon in section;

Fig. 15 is a sectional side View of the mechanism adjacent to the gripping element for opening the jaws of the gripping element and for exactly positioning said element;

Fig. 16 is a sectional View of the operating means for positioning the gripping elements in receiving position;

Fig. 17 is a fragmentary side view, partially in section, of the positioning device; and

Fig. 18 is a detail View illustrating `the frictional device in operative engagement with its as- K sociated cam member for actuating the impression roll after the latter has left the printing plate. Like reference characters indicate like parts throughout the drawings.

Referring now to the drawings, 10 is a bed plate on which is mounted a frame comprising standards 11 and longitudinally extending beams 12 provided with grooves 13 as indicated in Figs. 4 and 6 and in which are received a platen 14 on which is mounted an intaglio-engraved-plate 15. The beams are connected by a cross plate 12a.

The shaft 16a for the impression roll 16 has its bearings in blocks 17 which are preferably yieldingly mounted on compressionsprings 18 lov cated in recesses 19 in the frame of the machine.

The blocks 17 are vertically adjustable by cap screws 20 as best shown in Fig. 6. The impression roll (see Fig. 14) is provided on its'periphery with a recess 21 to form what is commonly known in the art as a D-roll. The cutaway portion of the roll in machines of this character is located at vthe lowermost portion thereof when the platen carrying the printing plate passes beneath the same towards the feeding end of the machine. n

It will be understood that the platen carrying the printing plate is reciprocated back and forth from the end of the machine where the ink is applied to the feeding end of the machine. .As the actuating mechanism for the platen constitutes I no part of my present invention and is well understood in the art, and any well-known form of mechanismtherefor may be employed, 1 have not illustrated the same. It will also be'undersuood that suitable inking, wiping, and polishing mecha anisms are also used, but as these elements likewherein the impression roll is inthe position where the cutaway portion is located at the lowermost portion of the roll as indicated inl Fig. 7, the roll is rotated from this position in a clockwise direction to the position indicated in dotted lines, as Viewed in Fig. 7, by a cam 22 mounted on a shaft 23. The shaft is in turn actuated by a gear wheel 24 indicated in dotted lines in Fig."5 which meshes with a gear 25 mounted on a shaft 26 and which is driven by a bevel gear 27 meshing with a bevel pinion 28 on a drive shaft 29 having a bearing at 291.

rIhe cam member 22 engages a roller 30 mounted within an intermediate portion of an arm 31 on a shaft 32, the arm being pivoted as at 33. A link 34 is pivoted at its lower end to the end of the arm 31 While the upper end thereof is pivoted, as at 35, as best shown in Figs. 5, 6 and 7 to a collar 36 secured to a sleeve 37, (see Fig. 6), loosely surrounding the shaft 16a of the impression roll. On the sleeve 37 is also secured the plate or disc 38 on which is pivoted as at 391, a pawl 39 which engages a tooth 40 on a sleeve 41 secured to the shaft 16a of the impression roll. When the cam 22 engagesv the roller 30, the arm 31 is rotated counter-clockwise, the link 34 is raised and through the described connections rotates the plate 38 and its pawl and thereby rotates the impression roll. The parts are so geared and timed as to cause the foregoing operation to bring the portion ofthe impression roll adjacent to the cutaway portion 21 directly below the axis of the roll as indicated in Fig. 14.

1 preferably provide means for disabling the 100 mechanism by which the impression roll is r0- tated by the cam 22. This mechanism comprises a lever42 pivoted at 421 which is preferably operated manually by a bar 44 passing through a guide 45 and provided at its outer end with a hand wheel 105 46. The opposite end of Ysaid bar is pivotally connected to one end of the lever 42, the lower end of said lever being provided with a roller 43.

When the lever 42 occupies the position indicated by dotted lines in Fig. 7, the roller 4s is 110 out of the path of the pawl v39 and does not interfere with the operation of theV impression roll. If the operator desires to prevent the operation of the impression roll by the cam member 22, the lever 42 is placed in thevertical full line 115 position indicated inV Fig. 7, and the roller 43 is then in the path ofthe outer end of the pawl 39, and moves the pawl to the dotted line position indicated in Fig. 7 Where it is out of engagement with the tooth l40, thereby preventing the cam member-22 from actuating the impression roll. y v

My invention provides a unit which is, in the embodiment iliustrated, in the form of an endless vcarrier which comprises an element which takes possession of the paper while the latter is in the vfeeding position, and retains possession of said paper during the printing and until the paper has left therprinting unitv which comprises the intaglio-engraved-plate and the impression roll. This carrier comprises sprocket chains 47 at opposite sides of the machine and as these chains and the associated parts are the same at each side of the machine, the description of one will suffice for both. rhe sprocket chain engages 3135 sprocket 48 secured to the end of the impression roll asbest shown in Fig. 6 and also passes over sprockets 49 and 50 located above the impression roll and -mounted in the frame as indicated in Fig. 1. The chain also passes over a sprocket 51 140 located adjacent to the feeding device indicated generally at 52. The parts are so designed that the chains 47 move at the same speed as the surface speed of the impression roll.

The feeding device comprises a feed board 53 and a gauge 54 `against which the edge of a sheet of paper which is to be printed is laid. While I have illustrated a device for the manual placing of sheets of paper in the possession 'of 'said feeding, printing and delivery mechanism, it 353 11,934,881 will be understood that the placing` of -said paper in thev possession'of said unitr ma'yl be manually vor .mechanically intermittently performed.

In-accordance with myinvention, the-carrier comprises an element, constituting a plurality' `of such elements,` which successively take possesand which is indicated generally at A, (see Figs. f1-0 and' 12), comprises a pair of bars 55 and 56,

the ends of which are mounted in'. locating blocks Ior headsf57 securedto the sprocket chain 47 as indicated in Fig.'11. The lbar-55 `isprovided with aplurality of spaced collars'58 provided with flattened "faces as at 59 forming relatively stationary jaws, while the other bar 56 is provided l.Wvvtlvl' a rplurality"of COURTS 601-011 Which" `are mounted relatively movable gripping or holding jaws 61 which engage the jaws59. The jawsl of the collars 60 are urged towards thev jaws 59 by a coilrspring62surrounding the bar 56,l one end of which spring is securedtoza collar 63 secured to the bar 56 and theother end of which isl secured to a bar or plate 64:

mounted on the bars '55 and 56 as best shown in Fig. 11. The bar 56Yis rotated in a. direction to move the jaws 61 away from the coacting surfaces 59 by means of' anarm 65 secured to the V-bar 56 and which-is actuated in timedrelation to the movements of the parts of themachine to open the jaws to permit the insertion of a sheet of paper whilein the/feeding position, and again to open the jaws wh'enthe gripping bars have arrived at the 'proper position for delivering'the sheet or sheets carrier.v Y

Means fare also provided for accurately positioning the gripper bars 'When they take possession of the paper, and also at the time that the to a' suitable device, preferably a impression is being taken.y Thegripperfelement is accurately positioned with reference to theedge of the paper and takes possession of the paper prior to the impression and preferably while theA Ypaper isin the feeder, at a predetermined distance from and parallel with the edg'ethereof,

and the'V gripper elements are again accurately positioned at the time that the impression is about to betaken so thatthe impression is'acvc'uratelyY placed-upon the paper at a'predetermined distance fromand parallel to theY edge thereof.

j Il will now describe the means for positioning or registering thegripper bars to take possession of the paperY while inthe feeding position1 and for `actuating the gripper elerr'ient'swhile'` in this position. The parts locatedat each side of the machinefor accomplishing the foregoing objects; are the same and bothmechanisms are actuatedV by afcommon member,Y and theparts at one side of the machine only, therefore, will be described.

The positioning head 57 is provided on its outer face Ywith a conical recess 66 asbest shown in Fig. 16 in which is received the conical end of a plunger-67 which is urged away from therecess Ab y- `a `coi l spring 68 which is located in a recess '69' located in the sprocket wheel. 51, one end of the spring Abeing seated inthe-bottom ':ifthe recess and-the opposite endl engaging" acollar 76 Vplate 71 lis rprovided with a cam 72 (see Fig. 16)

lin the positioning head. The plate "71 lis guided in gfthe'gripper bars with respect ytothe impres- Ysion roll when the latter arrivesY at afpositint'o 'impart the impression tothepaperatv an exact Y is raised to force the plunger 67 to theright as 80 `viewed "in Fig. 16 to engage the recess 66 and thereby accurately position the gripperelement with respect to the sprockets'l. It will` be understood'that while the gripper bars areV mounted on and are moved by the carrier, that because of the fact that the gripper bars must of necessity be somewhat vloosely mounted on the sprocket chain, Ather'emay be a slight movement between the gripper-bars and the carrier.` rBy theprovision of theplunger and. the actuating mechanism therefor, the gripper bars are caused to take Vpossession of the sheet of paper at an exact predeteirnined position with respect to the edge thereof and while the 'paper is in the feeder.- The which, whenjthe plate is moved upwardly, `rides over theouter' end'of the plunger and forcesit to the right, ras viewed in Fig. 16, into its seat in'its'upward v'rfi'.ivement byguidezmembers 73 v(Fig. 17) which maybe formed integral withA an intermediate and thinner portionv 74.

To the plate 71 is secured a .block .or head-,'75, the block preferably being adjustably secured -to theA plate by slots 76 and cooperating screws 77. The block engages .the end ofV the arm 65 thereby rotatingthe gripper lbar 56 against Athe action'of the springs- 62 andthereby causing the jaws 61 to move away from the cooperating jaws 59 and thus enabling the operatorto feed a sheet of paper between the jaws, at the same time positioning the' rearA edge .of the Vsheet against the stationary gauge54 on the feed plate, Aso that when the jaws close they grip Vthe paper. atia predetermined distance from theedge thereof and'115 parallel thereto.

vThe plates 71 and the head 75 .carried thereby. are actuated by a cam '78 ksecured on the1shaft 2 3. kThe cam 78 engages `a roller -.79 secured .on "i V`anarm 8,0/ pivoted on the frame as at 81 (Fig. 3). 120

Ihe free end of the arm 80 is connected bya link v 8.2.to one arm 83 of. a bell crank'lever pivoted at- 84, the other arm of said bell crank lever 85 being connectedto a link 86, the 'oppositeendof which is provided with Va recess 87 in which is received 125 a pinY 88 securedon the end cf an arm- 89, :said arm being secured to a shaft 90 extending transversely of the machine as indicated inlg. 2. Arms 91 are-secured to the shaft 90 at each side of the; machine and are vpivotally, connected by links 92` to the respective plates 71. The yplatesV 71 are urged downwardly by a spring 98 (Fig. 3) surrounding a bar 94 slidable in a bracket 95,one end of the barY 94 being attached :to an arm 96 secured-onthe shaft 90. One end ofi therspring 135r 93 engages the bracket95 as best Vshown in Fig.V l3 while the other end of said springengages ,a n

adjustable nut' 97on the bar 9,45,v

Means arealsc providedfor exactly positionvpredetermined distance from the edge thereof,l rei "membering' that the gripper element ha'sgrasped the paper at a vpredetermined distance from the edge; Theisprocket wheels 48 are Veach equipped with a plunger 98 -"(see;Fig; 6)-.generally similar to the plungerr 67 heretofore described but provided with a head 99, a spring 67a-beinglo'c`ated lbetweensaidhea'd =and the endwallzof a;recess 150 resultin serious damage.

69a in the sprocket 48. A ring 100 preferably formed of hardened metal is mounted in a recess 101 in the bearing block 17, which the head `99 of the plunger engages during the major por- -tion of the rotation of the impression roll. VThe ring is provided with a recess 100a in which is located a head 102 beveled at one end as best show n in. Fig. 8 and which is urged outwardly by a spring 103 one `end of which engages the are so timed with respect to the gripper elements A that when the plunger 98 arrives at the position where it is in a line, or substantially in a line, normal to the tangent of the sprocket chain 47 with the sprocket 48, the head 99 of plunger' 98 engages the beveled head 102 which is resiliently mounted in recess 100e in ring 100 and forces plunger 98 into engagement with the recess 66 in the locating. head of the holding element and thereby exactly positioning the gripper elements with respect to the carrier and the impression roll.

The object of `resiliently mounting the beveled member or cam 102 isto prevent the plunger 98 from binding in the event it does not register with the recess 66 in head 57. It is obvious that the head 57, being mounted and carried by the chains 47 will'not be ina position to be held by the plunger 98 in the sprocket 48 until the portion of the chain 47 carrying the head 57 engages the sprocket and brings the recess 6G opposite plunger 98. 'Because of the fact that the chain approaches the sprocket at an angle depending on the relative positions of sprockets 48 and 51, the plunger 98 will not be in a position to engage the recess 69 until they substantially coincide on the line normal to the line of tangency between the chain and the sprocket. Obviously, a rigid cam would tend to push plunger 98 into the recess 66 before this point was reached, thereby causing the two elements to bind which might From the foregoing it is obvious that the possibility of such a result has been eliminated by my invention.

The gripper element A is received in the recess or cutaway portion 21 of the impression roll as best shown in Figs. 4 and 14.

I have described the means by'which the impression roll is rotated from the positionwhere the cutaway portion 21 occupies the lowermost portion of the roll, to the position indicated in Fig. 14 where the impression roll is ready to be engaged by the intaglio-engraved-plate 15 on the platen 14. At this time, it will be understood that the platen carrying the plate 15 has been moved to the right of the impression roll, and the gripper element A is now located within the cut-A 21 of the impression roll, and has away portion retained its possession of the paper from the time that it took possession of the paper at the feeder in the manner previously described. The platen 14 and the intaglio-engraved-plate 15 carried thereby are now moved to the left as Viewed in Fig. 14, and the intaglio-engraved-plate engages the sheet of paper, the friction between the p parts being sulicient to cause the intaglio-engraved-plate to rotate the impression roll, which rotation continues until the intaglio-engravedplate has left the roll. f

During the time that the intaglio-engraved- -pulley 140 on a shaft `141.

plate is rotating the impression roll, the gripper element-A continues its possession of the sheet of paper and retains its possession until the paper is released at the delivery position. After the intaglio-engraved-plate has left the impression roll, means are provided forA continuing the rotation of the roll by the driving mechanism until the cutaway portion of the roll arrives at the lowermost position, a few degrees counter-clockwise of the position shown in Fig. 14. The mechanism for positively actuating the impression roll at this time is best shown in Figs. 9 and 18 and comprises a friction rol1 107 mounted on a shaft 108 on which is also mounted a sprocket 109 which is engaged by a sprocket chain 110 passing Y over a sprocket wheel 111 on the drive shaft 26. At the time that the intaglio-engraved-plate leaves the impression roll, a carnmember 112 mounted on a head 113 engages the friction roll 107, so that the friction roll continues the rotation of the impression roll, the cam member 112 being of suicient length to rotate the impression roll to the position where the cutaway portion 21 is locatedV at the lowermost portion of the roll. Whenthe impression roll arrives at the desired position, a segment 114 of a ring which is secured to the head 113 and which is preferably provided with square ends as best shown in Fig. 9, engages a yieldingly mounted plunger 115 which is urged upwardly by a spring 116 mounted in a recess 117 formed in one arm 118 of a lever, theother arm 119 of which is provided with a roller 120 which is actuated by a cam member 121 mounted on a counter shaft 122.

The parts are so timed that the plunger 115 engages one end of the segment 114, as indicated in Fig. 9, at the time that the impression roll is brought to its nal position where the cutaway portion occupies the lowermost portion of the roll. A detent 123 forming one arm of a bell crank in the specic embodiment illustrated and pivoted at 128 is caused to engage the opposite end of the segment 114 in order to prevent rebound of the impression roll. The detent is urged to the position indicated in Fig. 9 by a coil spring 124 located in a recess 125 of the frame, the coil spring engaging the lower end of the recess and a plunger 126 engages the other arm 127.

When the impression roll has been positioned in the described manner the continued rotation of the parts causes the cam 121 to leave the roll 120, and a spring 129 surrounding a bar 130 causes the arm 119 to be moved to the left, as Viewed in Fig-9, and the plunger 115 to be moved away from the segment 114 and thereby release the impression roll for thenext succeedingrmovement. One end of the spring 129 engages a stationary part or guide 131 for the bar 130 while the opposite end thereof engages an adjustable nut 132.

A conveyor, indicated generally at B, on which the paper is delivered printed side up is also provided. This conveyor, which moves transversely of the first carrier, may, if desired, comprise a plurality4 of independent endless flexible belts 133 formed of suitable material such as stout cord which pass over' an actuating roll 134 and an adjustable idle roll 135. The roll 134 is actuated through suitable gearing in a casing 136 as best shown in Fig. 1 by means of a pulley 137 engaged by va belt 138 the lower end of which. after passing over suitable idlers v139, engages a The milled roll 142 engages a milled member 143 mounted on the shaft 23. The movement of the conveyor is intermittent'and is so timed withvreferenceto the movementl or"r the,carrier,ithatb it -is at a dwell at the time lthe paper is 4released bythe gripper bars and dropped thereon.

Asheretofore stated, the gripper element A retains its possession of the paper vuntil it arrives at'a'position whore it` releases the paper and per- Y.

mits ittoiall uponjtheconveyorfB. `When the paper receivesits impression, the ink is, of course,y

mounted on theshaft 16a of the iimpres/sion'rolll on the iower side of the paper and, as it iscarriedv which is -mounted transversely of theV machine, serve positively to remove the printedpapers from between the jaws 6l ,and 59 of the Ygripper eiements.

vA second conveyor 145 (Fig. 2)'is also prefer-V ably providedfor takingthepaper from the second carrier and delivering it to the .oven through which the paper passes and infwhich itis properly dried.

A manually operated wheel-1.46 is preferably to provide for any slight movement.

The operation of ,my 4invention Vwill bejunderstood 'from the foregoing description and 4is as `follows:

' Assume that ,the impression` roll occupies the position where'the cutaway portion 21 is located atftne lowerinost-portion ofthe said impression f roll as indicated by dotted lines in Fig. 14. When :theimpressionrollis in this position, theplaten with` the intaglio-engraved-plate moves fromthe end of the machine where said intaglio-engravedplateisinked tolthefeeder end of themachine, the cutaway portion of said impression roll perlmitting the platen to moveunde'rneath it. 1-

At this time one of'the gripper elementsA occupiesthe positionillustrated in the dotted line position irvFi'g. 15 'with'.v the fjaws of the element about to be opened to the dotted line position and 4vready'to receive a sheet. of paper, `while the next element to the left on the-carrier is locatedl in the'- cutaway portion fof the impressionv roll as indicated by dotted lines Ain Fig. 14. Theglocatings-'mechanism'comprising the plungers v6'? and 44'-98- locate the end Aplun'gers or headsfofthefgripl per' elements 'injan exact predetermined position relatively to .the carrier, .with Ythe jaws of the gripper element'adjacentV to the paper, open, and those in thecutaway portion of'the impression roll, closed. 1

"Now,while theplaten l4and the-'intaglio-engrayed-plate mounted thereonl A.move from, the right toward the leftto a position as indicated-1n Fig. 114, the mechanism shown particularly in Fig. 57.

which moves the impression roll fromtheposition where'the cutaway portion 21 is located as indi-Y cated in dotted line Fig. 14 tothe iull line positionA in'dcated therein, now vcomes intoy play,rthe impression rollwhen thus moved occupying a posi-I tion where the'periphery of said Vimpression roll immediately` adjacent'to the cutaway portion 21 is atthe point of tangencywwith the top ofthe in- I taglioLengraved-pl'ate15. The movement of 'the' platen and the intaglio-engraved-plate 15 then moves the impression roll until itk has-leit-the ntaglio-engraved-plate 15.- r];he'. iriction rol1f107 then engagesfthe cam-112-and continues the'rotation of the impression.- roll'to the first position assumed; that is, where `the cutaway portion of the impressionrolloccupies the dotted line position indicated in Fig'.- 14. i,

Just before the Y, rotary carrier on which the gripper velements are lmounted and the impression rolifagain begin vto move, the plate 71 and the parts mounted thereon are depressed, thereby releasing the arm shown in Fig. 15 and'perrnitting the jaws 61 and 59 to grip and take possession of the sheet of paper. The initial movement of the impression roll from the. dotted line position ofthe cutaway portion indicated in Fig. 14 moves the, lower run yof, the carrier as indicated in Figs-1 and 3 to the left, carrying `the gripper element at-'the feeding end with it; this grippergelementjnow gripping the paper. '-As soon as the plunger 98= rides off V4from the head or cam 102, the grippery element A is unlocked from the associated sprockets. At the same time, the-gripper element that is.

located. in ,the lrecess 21 in the impression `roll,is accuratelypositioned with respect thereto byythe plunger 98 so that the impression is made on-theA paper inexactly the desired position. Thergripper element is then moved in exact synchronism'with the impression rolland at the same relative` speed.l asther surface speed thereof. As the gripper element A of Fig. 14 moves Lupwardly towards Athe sprocket 49, it still retains `,its possession of the paper; thereby A preventing either tearing orV crumpling the paper. This feature isof particular importancewhere the paper is wet andv l wherejthe degree-off` ymoisture may varyunder varying conditions.V t Y During rthe, succeeding movements of the said unit; the paper is -now carried alongwith the gripn per element over theshaft for the sprockets 49 and then along the upper run ofthe carrier. VAt this time the positionof vthe sheet of paper has been inverted; that is'tosay, the printedrside of` the sheet whichwas below wherethe impression isA the gripper element arrvesat the cam 144`the, jaws of the ygripper element are again opened, thereby permitting the paper Vto fall printed side` upupon-the conveyor B which moves across the upper portion-of the machine. wAtthe Ysame time that the printing operationl is carried out,. the conveyor movesv theA paper along to the conveyor' 143v which deliversthe paper to the drying ele- *taken now is the upper side of the sheet and when` ment printed sidenp Vand without smudging or offsetting of the ink. l y While Iihave described my invention in itspreferred embodiments, it is to be understood that the words which I have used are words of description rather than of limitation and thatVV changes within., the purview of the appended claims may be ymade without departing from the trueY scope andlspiritof myinventionin its broader aspects.

What I vclaim is: y 1. In an intaglio-engraved-plate, at bed printing press, an` intaglio-,engraved-plate, an impression roll cooperating therewith, a unit comprising an element forholding Va sheet of paper, means Vfor causing said element to take possession of said paper prior tothe taking-oigan impression, said element retaining-possession of said. vpaper during the taking of said impression be-v tween said impressionroll and said intaglio-engraved-plate, and aitersaid paper has left said` intaglio-engraved-plate and said impression roll, saidelement moving at the samey speed as they suriace'speed of said impression roll, a .paper receiving device, and associated means for delivering the paper from said unit to said paper rec eiving device printed side up. M 2. In an intaglio-engraved-plate, flat bed printi ing press, an intaglio-engraved-plate, an impression roll cooperating therewith, a paper feeder, a unit movable with said impression roll and comprising an element for taking possession of said M paper while in said feeder, said element retainl ingpossession of said paper during the taking of an impression and after said paper has leftl said intaglio-engraved-plate and said impression roll, said element moving at the same speed as H N the surface speed of said impression roll, a paper receiving device, and associated means for delivering the paper fromY said unit to said paper receiving device printed side up.

3. In an intaglio-engraved-plate, flat bed printing press, an intaglio-engraved-plate, an impression roll cooperating therewith,a paper feeder, a unit movable with said impression roll and comprising an element for taking possession of a sheet of paper While in said feeder, said ele- V, ment retaining possession of said paper during l the taking of an impression and after said paper has left said intaglio-engraved-plate and said impression roll, ksaid element moving at the same speed as the surface speed of said impression roll, .a conveyor, and means coacting with said element for delivering said paper therefrom to said carrier printed side up.

' 4. In an intaglio-engraved-plate, flat bed printing press, a printing unit comprising an intagliof A,engraved-plate and an impression roll cooperat- `ing therewith, said impression rollv being provided with a peripheral recess extending longitudinally thereof, a carrier having a portion located above said impression roll and provided with an element for taking possession of a sheet 40 of paper, cooperating means for causing said element to take possession of said paper prior to an impression, said element being so formed as to be received in said recess and pass between` said impression roll and said intaglio-engravedplate, and retaining possession of said paper while receiving the impression and until said paper has leftsaid unit, the speed of said carrier being the same as the surface speed of said impression roll, and associated means located above said im- -pression roll for causing said element to release and deliver said paper printed side up.

5. In an intaglio-engraved-plate, flatbed printing press, a feeding, printing and delivery unit comprising an intaglio-engraved-plate and an impression roll cooperating therewith, said impression roll being provided with a peripheral recess extending longitudinally of said impres-` ated means located above said impression rollV for causing said element to release and deliver `said paper on said conveyor printed side up.

6. In an` intaglio-engraved-plate, at bed printing press, a feeding, printing and delivery unit comprising an intaglio-engraved-plate andy an impressiony roll cooperating therewith, said impression roll being provided with a perphffl recess extendinglongitudinally thereof, an endless-carrier providedY With an element fortaking possession of a sheet of paper, cooperating means for causing said element to take possession of said paper prior to an impression, said element being so formed as to be received in said recess and pass between said impression roll and said intaglio-engraved-plate while retaining possession of said paper, a conveyor, and means for delivering the paper from said carrier to said conveyor printed side up.

7. In an intaglio-engraVed-plate, flat bed printing press, a flat bed intaglio-engraved-plate, an impression roll cooperating therewith, an endless carrier driven by said impression roll at the same speed as the surface speed of said impression roll, said carrier ycomprising an element for taking possession of a vsheet of paper prior to an impression' and continuing its possession of said paper during said impression and until it has left said intaglio-engraved-plate, a conveyor, and means for delivering the paper from said carrier to saidconveyor printed side up.

8. In an intaglio-engraved-plate, flat bed printing press, a at bed intaglio-engraved-plate, an impression roll cooperating therewith and provided with a recess, an endless carrier actuated in unison with and at the same speed as the surface speed of said impression roll, said carrier comprising an element lfor taking possession of a sheet of paper prior to an impression, said element being received in said recess and retaining its possession of said paper during said impression and until it is free of said ntaglio-engraved-plate, a conveyor, and means for delivering the paper from said carrier to said conveyor printed side up.

9. In an intaglio-engraved-plate, iiat bed printing press, an 'intaglio-engraved-plate, an impression roll cooperating therewith, an element for taking possession of a sheet of paper, means for causing said element to take possession of said paper at an exactpredetermined portion thereof, means for again exactly positioning saidelement vimmediately prior to the impression on said paper, said element retaining its possession of said paper during the said impression and until said paper has left the intaglio-engraved-plate, said element moving at substantially the same speed as the surface speed 125 of said impression roll, a conveyor, and means for delivering the paper from said carrier to said conveyor printed side up.v v

10. In an intaglio-engraved-plate, fiat bed printing press, an intaglio-engraved-plate, an impression roll cooperating therewith and provided with a peripheral recess extending longitudinally thereof, a paper feeder, a movable element for taking' possession of a sheet of paper, means forlcausing said element to take possession of said paper while in said feeder, said elementvbeing received in said recess of said impression roll and passing between said impression roll and said intaglio-engraved-plate while retaining possession of said paper, means for 140 exactly positioning said element with respect to said feeder and means for again exactly lposi-V tioning said element with respect to said impression roll and immediately .prior to said impression, whereby said element takes possession 145 of said paper and said impression is made at exaotpredetermined portions thereof, said element moving at substantially the same speed as the surface speed of said impression roll.

11, In an intaglio-engraved-plate, flat bed 150 printing press, a feeding, printing and delivery unit comprising an intaglio-engravedplate and an impression roll cooperating therewith, said impression'roll being formed on its surface With a recess, an endless carrier comprising an element to take possession of a sheet of paper prior to an impression and kretain possession thereof during said. impression, a conveyor located above said impression roll, the said carrier inverting said paper during its movement to the upper run of said carrier, and associated means for releasing said paper while being moved by the upper run of said carrier, whereby said paper is delivered to said conveyor printed side up.

12. In an intaglio-engraved-plate, flat bed being received in said recess during an impression, means for registering said elementwith respect to said impression roll during an impression, means for continuing possession of saidv sheet of paper until delivered with its printedl side up.

- OLIVERA. QUAYLE, SR.

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