US2223369A - Intaglio plate printing machine - Google Patents

Description

1386- 1940- w. F. HUCK INTAGLIO PLATE PRINTING MACHINE Original Filed Nov. 29, 1938 '7 Sheets-Sheet l Huck INVENTOR M/fiamF ATTNEY Dec. 3, 1940. w. F. HUCK 2,223,369

INTAGLIO PLATE PRINTING MACHINE Original Filed Nov. 29, 1958 7 Sheets-Sheet 2 INVENTOR MZ/fom Hue/ 'BY 2 g i -ATTO EY v v. F. HUCK v Q 2.223369 7 Sheets-Sheet 5 INTAGLIQ PLATE PRiNTING MACHINE Origiflal Filed Nov. 29, 1938 ATTORNEY Dec. 3, 1940.

Dec. 3, 1940.

w. F. HUCK INTAGLIO PLATE PRINTING MACHINE Origihal Filed Nov. 29, 1958 7 Sheets-Sheet 4 i Q a--- ow mmv ow mm iv mm "4 m: bmf w mm 6 mm J Ma I 1- -|--L n a y Y 3 mm J mm mm m w/ F mm Nb mm mm hm Q1 5: Nu mu G H s w L #0 5 VENTOR ATTORNEY Dec. 3, 1940. w, uc

INTAGLIQ PLATE PRIfi'rIN MACHINE Original Filed Nov. 29, 1938 7 Sheets-Sheet 5 INVENTOR VV/W/am FAQ/Ck 7 Sheets-Sheet 6 W. F. HUCK IN'IAGLIO PLATE PRINTING MACHINE Original Filed Nov. 29, 1938 Dec- 3, 1940.

mam 4 uyvarwo M/flam FA L/ck ATTORNEY 9 0- w. F. HUCK INTAGLIO PLATE IRINTING MACHINE 7 Sheets-Sheet 7 Original Filed Nov. 29, 1938 m w E INVENTOR M/lmrm ATTO NEY :155wjustment; j;

qtOw rows'i5e-e5g of Figure 1141 m Patented Dec. 3, 1940 which :is a it division of my copending"application Serial Number 242,909, filed Novemben29 1938, relates, to Lprinting machinesgin which, flat' en grayed; platesaregused, and. more particularlyto machines *oiw this Y type whereinprovision is :included to V1drive a plurality-not,'platemcarrying planks successivelyi by and-beneath a;'plate--ink;- :ing unit, 'a plate; wiping unit, and an impression The principal object 1 of n this invention improve the structure 2 of @this type voipgprinting machine the provision f improvements in each :0f the variousvunits, whereby they; will cooperate to; increase vthe efficiency .of :thejm'achine and improve the equalitymof {the product}; :3] ilI'II' wAno'ther object is to l. providev in fla -printing machinean' improved plate wipingi'mechanism :whereby the "engraved depressions in the inked printing plate; will the :vcompletely: and: properly filled withithe ink applied by the tinking-ingroller. -;:w Another object is to provide in awprinting ma- 5 chine: an improved a impression ;mechanism wherein :the impression-tor .fDf roller; andithe plank back uptrollers are separatelyadjustable to properly positionrthem; wherebytthe .correct presxsuretiwill be= obtained'toinsure a clear-tanddistinctiimpressionm 5: Iteis-alsc an object -of. this invention to FDl'Q- Avide aprinting machine oftgenerally'improved construction;whereby the same -will be simple, durable and inexpensive in constructiom-as well l as convenient, 1 practical, serviceableand eflicient in itsuse. i s ;Withthe foregoing zand other iobiectsrin view, Which :will; appean as ;the description proceeds,

the invention resides? 111513116 tcombinati'on and V arrangement of: parts,1-andt in the details oi-con struction, hereinafter described and claimed,; 3 it being understood that various changes; in the precise embodiment of the inventionsrhereinsdis- ,clcsedmay bemadel within the scopeiof; what is claimed without departing from. the spirit I of: the 'aiIlVEIliOIlp-x i m 4;

x A preferred embodiments.oftqthe,inventionais 5 illustrated tin ".01181 accompanying a drawings, whereina 1: it a: 1: i; V1 tlfiguregvlv is a top plan, View of, aqprinting machine embodying the featureszand principles of thiskinventiongwi 2 Figurei2 is a :side-elevational view,

-chineshown=i-n Figure 1; a; .1 :7! wwFigure 31 is an enlarged section: taken onlme f: 3'-3 of Figure 1,: towshowwa chain and 1guide" ad- :Figure l as an enlarged sectiontakenjon line alt-+4 of Figure 1;

"1Q: a1 Figure 5eistan. enlarged end -elevation oi: the plate inking unit looking? in the; direction;,ofu;,ar-

" a; @Williani l 'lz flliclg iticl mondlflillf N to Reno eta Gamma, york; Y

i 1loriginalapplieation'hlovernber 242,909. Divided and this api liwfiqn Jpn 19= S i 1 oe- 81 79 a assignor fi re-Imam; en r ed a tl je t ql 1 le d ate e pu es lrelrrin d wiped,

receive a sheet upon-its surface, pass beneath an impr on cy inde rliDirr l e i, and the a e the pr nted h e remqve th e l q -t as frame 2.13 ;-is ,provided with plank supporting and bearing members I 4 arranged ,to provide suitable u in rem ves-l orm dfbetween th mi l n ibvaw ich (ro ers: lit-s u t t e un r de o "then1 v1l w-; n a e h imm-the eo ar ieuidedmwher he hnksi? tare-e nt p e heirrmoyements about' the frame l3. [Agroove .t he hain l ed rou d m t ;oI 1 e;-0 hi dispose adjacentfeach corner; 1 fthei ame i! t;eni leq m erZ2; of W w i h h s sl r c iqn; ar ng ire y es et-e a e w th s qon ei eerthm twern 3 tandlwv rm er' the eete .2 b g se ii df it e ait-e new?" fi -WWO? l e d r tA h sm r eke e d h qhain v Arrangements are lfleiein hown (seeLFigur'es 21 amt-4) whereb he, h. ma be adjusted to maintain it in proper running relation ewibhithe otlse s 27!. an t fiimi en m l -4:250

just cooperating plank supporting r nters, -.-.p i .t l t a acen th ediu t ,2,s oc et A ;ma nt he gro e 5 n r i proper ui ng po iti n e. ha a dasilide d ustin means hqwn her in ipc udes tw tuw xsh s; t a d 21; new ach;. ,;w h spr cket v scr atahl imo Et Qt the st -emi at-a .11 1 3 xte d :I o c lin :2 end .2 s e iivel ic c nders; erewy o ably 2'1 are eccentric to the cylinders .28 and 29, the arrangement being such that rotation of the cylinders 28 and 23 will move the sprockets 2| carried by the stud shafts 26 and 21, to adjust the chain l9 led around them. Both cylinders '28 and 29 are arranged to be adjusted simultane ously by having an arm 3| secured toandextending from each, which arms are "connected together at their outer ends by a link'3'2. A screw threaded bar 33, connected to one end of the link 32 and passed through a lug 34 secured to the base i3, is provided to move the -1ink '32 to swing the arms 3i and rotate the cylinders 28 and. 29. The bar 33 may be moved by means of nuts 35 and 3t screw threaded on the bar 33, one at'each side of the lug '34;

A bar 31. carried by, and on each of the stud shafts 26and 27, has each of its ends connected to one of a pair of plates- 38 and 39 through blocks ll. The plank supporting members 14, adjacent the eccentrically mounted sprockets 2|, are respectively secured to the plates 38 and 39 by screws 42, the plate 38 connecting together all of the supportingmembers l4 atone sideof 'the groove 11, and the plate 39 connecting together all of the supporting members M at the other side of the groove 11. By this arrangement, the rotation of thecylinders 28-and'29 will move the members I 4 connected to the plates 38 and 39 simultaneously With any adjustment of the eccentrically mounted sprockets 2 1. As more clearly shown in Figure 4, the joint between the -movable supporting members, M is formed by overlapping their ends, as at 43, with the adjacent ends of thestationary ones whereby the sides of the grooves l5 and I7 between these members will not be interrupted. Y

The mechanism herein shown for applying ink I to the plates H as they are moved by the chain 4019, includes two cooperating fountain rollers 5| and 52, and aplate inkingroller 53 "(see Figures 1, 2, 5 and B). The shaft ends'fifi and 55 of the fountain rollers "5| and 52 respectively, are journaled in spaced apart uprights *5'6 and 51, se- 5cured to the frame [3 by bolts Bil. 'Thefountain rollers -5lf'and 52 cooperate by being adapted to engage at their opposing faces to form a trough therebetween to hold ink and to act as an ink mill.v The trough formedbetweenthe rollers 5| and 52 is closed at each end by a V-shapedplate 58 which fitsthe adjacent peripheral portion of each roller and is spring pressed thereupon by a spring 59, which spring reacts between the upper edge of the plate 58and a sleeve 6i screw-thread- 'ed in a lug 62 formed on,- or securedto, each upright 56 and 51. The sleeve BI is provided with a handwheel 63 by which it may be rotated to adjust the tension of the spring 59. A rod '64 threaded'into the top of each of the'V-shaped I plates extends upwardly through each sleeve 6! to above the hand. wheel 63. The rod 64 is engaged-by a nut 65 whereby engagement pressure ofthe plate 58upon the rollers 51 and52 may-be *varied. i

"The shaft ends '55 of theroller'52 are each journaled in asleeve E6. The outer peripheryof each of the sleevesBG is eccentric to the 'axis of thev roller shafte'h'd '55, so that by rotating the sleeves fitftheroller 52 is 'adapted to "be 'adjusted relatively to the roller 5 to vary its'engagem'ent -therew ith', whereby the amount of ink carried pastthe engaging point I from the ink supply will be varied. Each sleeve-$5 is adapted to 'be rotated for such adjustment, by means of '75 "a threaded'rodE-I which-'isjournaled'ina lug 68 from the sleeve 66.

on the upper side of each upright 56 and 5'! and has .a hand wheel 69 secured to. its other end. The inner end H of the rod 6% threadingly engages a part 72 pivoted in an arm '13 extending A sheet metal apron 14 secured at its upper edge'to each side of each V-shaped plate 58 extends about the outer side of :each roller 51 and 52 and along their entire length to cover'these rollers.

The rollers El and 52 are power driven from I the chain driving motor 22 through a chain 8i led about a sprocket 82 secured on the shaft 25 and which extends to and is led about a sprocket 83 on a-vertical shaft 8 5 journaled in the base IS.

The shaft 84 has a bevel gear 85 keyed to its upperend which meshes with a bevel gear 86 keyed to one shaftend 5d of the roller ii. A spur gear is preferable that the roller 5'! be driven slightly *slower than the roller '52. Both sets of bevel gears 85 and 86 and the spur gears 31 and stare preferably enclosed in oil-tight housings 89. and

9 I respectively, as shown.

The inking .roller53 has each of its shaft-ends 92 journaled in a bushing 93, the outer periphcry of which is' eccentric to theaxisof the roller 53. Each bushing 93 is clamped in an arm ill of a'leveriifi by a cap member 96, .swingably connected by links 9 7 to the arm filland adapted to be "tightened against the bushing '93 by a clamp A 88. -Each lever 55 is mounted on a stud 99eX- tending from one of the uprights "56 and 5?. Another arm 'llll of the lever is acted upon by a spring I 52 which reacts between a stud H33 screw threadedinto the arm NH, and a lug 1&4 extending outwardly from each :upright .55 and 51. Rotation'o'f 'the stud 33 varies the tension of the spring M2. The springs i262 constantly act upon the levers 95 to press the roller L53 against the roller 5i whereby it will receive ink therefrom to transfer it to the plate l'i. A set screw I65 is threaded through alug lite extending from-the armfi l to engage a lug till provided on the adjacent upright '55 or '5? to limit the pressure of the roller 53 against the rollertl. By loosening the bushings '93 they maybe rotated "to adjust the roller 53 relatively to the 7, 8 and 9) is adapted to be reciprocated across the plates H transversely with respect to their movement about the'base i3 by a mechanism 'which'includes spaced-apart uprights lll andH-Z which are connected together by a frame-"member lt'3 bolted at each end to .oneof the uprights I 5 1 and H2 byibolts I M. The fram'e'member l H3 is provided with a centrally disposed post l 5 to 'which one end of .a pitman H6 is' secured, by

means of a bolt H1. The'other endof the pit- 1 man I ifiencircles. an eccentric portion of asleeve H8 which is rotatively mounted on a stud H9 extending upwardly from a bushing lZl ikeyedit a vertical shaft [22. The stud .l'tQlis eccentric to the axis of the bushing iZl land to the shaft I22. The sleeve-l i8 is clampedlbetween'the upper surface of" the bushing 1:21am a washer 123 by a nut H4, which wheniloosened permitsithe 'By varying jromthe. clips, I II I-atpne I end of' I w s er: is

secured on the outer 'nd'of-each shaft I5 for rotation 'of' the sleeve: II 8 ion: the stud I I9itot-ad'-*- justithe throw'bf I the 'pi tma'n 1 I I 6 andthrough it "the extent "of 1 the reciprocating, movement 10f the wiping mechanism. The shaft 'I22tis"oon nectedto ian 'electric motor 126 bysuitable' gears (not 1 shown) but: I 'di'sposedrrin-x a? I reduction gear casing I associated with the electric motori 'I 26. The spacedra art uprightsixllI andI IIILIaIid the frame member II=3: connecting:themharelslid ablyI supported on a" pair of spaced :Iapart:-:bar's I21 =ands'l 28wwhichzin" t'urn rare-supported-rait each of their 5 ends} from the: base'uframe I3ivby; pOSt'S I 29; to which they are3-secured byholts I 3 I]; "Roll? ers I I 3 I: and: I32 secured to each i'side-Iof; thezframe member 1 I I13 and; atweachs IendIl thereof vprovide anti-friction means between; the 1 frame 1 member I-I3 andIlthe -bars 'I2'IwandiiI28 ,1 while rollers I133 and-I34 each carried oma lug I35 I provided' on each Iupright II I and II 2 .adjaoent each end: of the frame member I I 3 are providedzto, iengage the outer side[ of each-bar I21 and IIIZBI tOQguide Ithe uprights II I I: and :I' I 2: and the frame; memben: I I3 along; these I bars I with; substantially I no Ifriction. I'The frame 3 member I I3 is adapted; torIvcarry z a jcushionin'g, pad I 36; and -a-roller :or,- reel II 3-'II -I of wiping material: 'preferably a; iweb I 3 8I of papser or fabri The cushiening'l p id alvafi may consi t of several superimposed ,I layers I39 jof felt or other-suitable material secured byg means of clips I 4 I which: ho d; the: "zout r layer I39 to wasbl c III IZ preferably of ,wQod. A strip'gorI blankett lfl of rubber or othergsuitabl material isg-stretched over the outerlayer; 39 and ecured tc the b oc I M2; 'Ibyi sp i m s I 1 Is plural t m b n b d MO -I ur I to ztheI b anket I413 and engaged on pins 44 exten ineI -ziu wardl I I I .I theiblqck I :A the t zend fI I IIb QQK IIUth I I s N is en a e Id s t wn h Pin -1 A; Ihe rub er bands I maintain the blan et; I 43; taut over the su pot t fram jber Is, Eachjofthero t mat itmief hift, I I I I hear teas on its beribhery, threaded 1 I 45 "intermediate the lugs- 41 and mess with thef angers I toothedfiuts "I58; bein f threaded "on Its; ajr'e aetps'eatoy adjnst the Press r er the pie Isa against th in'lied"printing 151ate I I when they are rotatedbn'thamds I451 The rowned hut's "I56 I are arranged to be rotated by warm I I 51 'tw6 of which are secured'to eachil'df a' pair er spaced apart 'sha'fts' I 5 8 which extend length- *wise through the 1 frame member I I3: being 1611fna1ed in* each end' thereofi A hand Wheel 159" is rotating'the s'an'ie- WI II I I I I -Each of the uprights II I and H52 as provided with spaced apart slotted -upstanding arms "I61 "and I62, in the slot I63 "of Whicha bearing block I I64 is I slidablyI mounted; II one pairfof opposite bloicks support, the shaft ends of the'web' rol1-l31 I and the I otherl pair1 support the shaft ends of a ,web. takemp roll I 65; upon which; theused web is ;t o, be wound. I {The peripheryxof the Iro11I I3'I: rides "onaroller 1'55 fromiwhich the web II38 is led to it and Ian; eceentrically 'mounted rroller I69 and tof-a roller'I I I .upbn which the roll IGS rides, 1 I :A: ratchet' I'I2, preferably of the roller type; is secured on one "of theshaft' ends' I'l3 ofuroll I65 Ii'nl "position 'to =beoperated upon by' the usual form of operating device I II I; 'which-:has a rod V I I5 eX-I- tending downwardly therefrom, to rotate the roll I165 top wind theiwehy I '38 ,thereon. @Ars1eeve I15 carri'edbn the :upper and long end I of a lever; I11, pivoted to one side of? the I adjacent; uprightt H2 Ibyle a bOltiIIIFIB, is jslidably mounted on. the rod 115.25 The slower 1a-nd I short end. of the lever I I'I connectedat-II 1'I8I ato a longI link I19; the I'qther end ;I 0f;:I=IWhich -isz connected I by a short link 1 I tbwthGDthGl, side or the upright: I12; (see Figure 28):; Theqlink; I 'IS is connectedI -to theIbar I II8I, which extends across and outside of the; upright I I 2,2 by 'havingI, a stud I. I8 2 I extending downwardly there-from into a- -bI ck I 83 which; inturnis piv;

Iot'ed tOrthe bar IBI I by a-Ip-in I 84, the arrangemeut being: such that a universal joint isforrned at thiszpoin A: pin; 85 I-Q r /edI n he. li kI lI-I t adapted to engage an arrn 1 I 85 connected to the :shaft-I I871 of; the eccentric roll I I 59; I;soas to press it-toward the web guide roll II 63 Iwhen sthe bar BIEis reciprocated in. one diregtion; herein to th e z right in Figur el7;, -Iso asItoI-causethe web .138 13) rbecgripped between theserolls;to prevent it being pulled backwardly by the vIno verneht of theiilanks I2-.I -Aqspring lfl8 freesrthe roll IIiIl frorn the roll 458 while, the ,web -l 38. isi being intermittentlyr fed alone over the pad I35 ,by the ratchet I I2, i

The end of gbfili 1B1;I iC1i.i ;Ib QknIaway i I Figu e 7 I-'1IQW w I I I31 w t i s o nection tothe loweriend faiilarxhflfisthatds Ise e a it nbperl we a h ft J91; s p: ;ported in aIbr aclget I 92,]1hg51int'edo'n{thefbase I Ii. fI'he] connection between the arm I fi9. and"thef end .Qfr tgh hai 1" 8 I 18; S mi r Itbf that emp oyed be- Itween thelinl; I19. ,and the-bar I'8I I and includes a: gsw eli l ck, l 9 .j p n gi; a unive al I.J'bi it- Another arm I 93 is seeured to the shaft IQI and has a slot I 94 f oIrmed I lengthwise therein, "in whie I a block sjni slidably motnteq, The "a ms 3 -ai d I 3 wa zm haat III; orm. abeny renk which is a dagtedIto befrockedhyf a link I96 cq "1-, :2, 1'0,-11 and 12) includes an impression, or 'D, cylinder 211, the shaft .ends 212 and :2I3 of which are journaled in frame members 214 and 215 respectively. The frame members2l4 and H5 are each slidably mounted upon .a pair of spaced apart posts 2116 and 2H, which in turn are s'lidably disposed in holes 218 provided therefor in'the base of the framel'3. The posts 256 and 2!! are formed to provide a portion 221, smaller'in diameter where they pass through the frame members 2 l4 and 215 than where they pass through the base frame l3, to provide an upwardly directed shoulder 222 upon which the frame members 2M and M5 may seat. A coiled counterweight spring 1223, of sufficient tension to support its portion-of the weight of the frame members2l4 and H5 and the cylinder 2| I, with their associated parts is disposed about each p stZI-B and 2H, and reacts between the ad- ; jaceiit frame member 214 and 215 and the base frame l3.

Th lower end of each post 2H6 and .211 is "threaded and has an internally threaded wormwheel 22 4 operatively mounted thereon. The worrnwheels 224 engage a bracket 225 seated against the-undersurface of the base frame I3 '"and are thereby adapted to draw the posts 215 'a nd 2l1 downwardly against the tension of the counterweight springs, and to adjust the position of the shoulder 222 to limit the downward "movement of the frame members 2I4'and 2| 5 and the'oylinder2l I. A shaft 226 having a worm gear 221 thereondisposed between thewormwheels 224 on adjacent posts 2l6 and 2l1, has a hand wheel 2.28 (Figure 2) secured upon one of its outer. ends. whereby all four wormwheels 224 may be simultaneously rotated.

' A pressure spring 229 is provided, coiled about the'upper end of each post H6 and 2H to react betweenthe adjacent frame member 2-l4'or2-l5 ,and abracket 23l extendingbetween the posts in each frame member 2I4 andf2i5, to press the frame members downwardly toward the shoulde'rs222 and maintain a desired pressure of the cylinder '2 against the plate H as it passes under the cylinder. A wormwheel 232 is screw threaded upon the upper end of each post 216 land 211 and engages the adjacent bracket 23L Simultaneous rotation of all of the four wormwheels 232 is obtained by means of a shaft 233 having a pair, of worm gears 234 thereon, each positioned (asshown inFigure 1), to mesh with two-of the wormwheels on the posts in each of the frame members 2M and 215,. The shaft 233 the pressure of the cylinder 2 on the, plate H.

In order to adjust the elevation of the ,bearings for each end of the icylinder 2H separately, one of the worm gears .221 is preferably provided with a suitable locking device :not shown, where'- .by it may be locked to the shaft 226 in any desired angularrelation, and similarly, one of the worm gears 234 may be adjustable withrelation to the shaft 233 so that the impression pressure at each end of the cylinder 2i I may be separately adjusted.

. A bar 236 extends between the frame members 2M and 2 I 5 and another bar 231 extends between the brackets 23! 1 adjacent each of the frame members 2M and i2l5. The bars'236andr231are parallel and are spaced apart, and the upper one 231 has a pressure indicator 238 mounted thereon adapted to be actuated by a pin :39 mounted di- .rectly below it on the bar 236, whereby the pressure of the cylinder 2H upon the plate H will be. indicated.

Plank back-up rollers 241 and 242 are provided and arerotatablymounted upon bushings 243 which are in turn mounted upon .a stationary shaft 244. The shaft 244 is secured to and is carried "in eccentric bushings 245 and 246 which in turn are rotatively mounted in the base frame 13. Rotationof' the shaft 244, due to its mounting in the eccentric bushings 245 and 24.6, as above described, will adjust the back-up pressure of the rollers 24! and 242 upon the plank l2.

The cylinder 2: is arranged to be rotated by the chain driving motor 22 (see Figures 1 and 10') from the gear 288 on the cam shaft 203 through a gear 241 in mesh with the gear 258 and secured on a vertical shaft 248, a bevel gear 251 slidably secured on the shaft 248 by a key 249, and a bevel gear 252, adapted to be detachably connected to the shaft end 212 of the cylinder 2H and which is constantly in mesh with the bevel gear 25L The means to detachably connect the bevel gear 252 to the shaft end 2|2 includes. (see Figures 11 and 12) a plate 253 securedto the shaft end M2 by screws 254. A cylindrical boss 255 extends axially from the plate 253 andis provided with a bore 255 in which one end 251 of a shift rod 258 slidably entersl The shift rod end 251 carries a cross pin 259 which extends through the boss 255 in an axially I elongated slot 261 provided therein whereby its ends may seat in segmental recesses 262 formed in the rear face of a hub portion 263 1 formed on the bevel gear 252.

A coiled spring 264, reacting between the shift rod end 251 and the bottom of a hole 265 formed in the shaft end 2|2, is provided to constantly urge the ends of the cross-pin into the recesses moved to disenga e the ends of the pin 259 from the recesses 262 by being provided with an annular recess 2.61 in its outer end in which a stud 25.3 rides. The stud .268 is eccentrically disposed .on the end'of ashaft .269. The shaft .269 extends through a gear-enclosing and oil-tight casing 21] and has an operating handle 212 secured thereto .outside-of thecasing .21] (see Figures 1 and 2) by whichit may be rotated to shift the rod 258. The bevel gear 252 :-is rotatably mounted-upon a sleeve 21 3 which extends from the cylindrical vboss .255. The :sleeve 213 extends along the rod 258 beyond the gear 252 and through a brake shoe 216 and a stationary brakeplate 211. The brake plate 211'is fastened by bolts 218 to a cover 219 for the casing 211, and the brake shoe 256 is keyed to the sleeve 213 by :a key 281 which seats in an elongated slot 282 formed in the sleeve .21,3. A; spring 283 coiled about the sleeve 213 reacts between the brake shoe 218 and a collar 1284 abutting the gear 5252 to prevent rotation of the cylinder 2 when the pin .259 is disengaged from the vgear 252, by manipulation of the han- Idle .212, and .at other times presses the pin .259

into the recess 262. The provision of the seg-,

beingdrivleniby thechain -l9.,ito insure clear and .75

so i,

, plyvof sheets to be printed, upona plate-ML asit becomes disposed adjacent station A. z After the sheets pass thegprinting unit underithedcylinder i 2 H: and are printed upon l by the inked impress sionsyon the; plate I 1 they areremoyedyfrom theplate at station-B andipiledlon the shelfddi The plateyl l is then fed alongby the chain pastthe inking unit where a-lnewqsupplyofink is applied bytheinkingroller53zandg then cons tinues about the based3 t0abe acted upont by the wiping pad l36vwhereby the inkis removed from the surface of theplate I I and ink is forced in o a the impressions thereon to; icompletelyl fill them) 1 A4, A M a As described above the fountaingrollersrHand 5210i theinking unit arearrangedtobeadjusted o; a the u p y o in t k eb the. ink n roller 53 to beapplied upon the plateL i l, and t e: ip ess r o h k n ro r v1 p nn h rcllerr ilrand" the plate, is also sho wn to be d t ble he m i he wi i spad; 36; whereby it is reciprocated transversely; across the P a fi e th h l e im e s on h re: inljis shown to be adjustable by means of the eccentric sleeve LIB, and the stroke of. the ratchet H2 driving the web take-up roll I65 is shown to 1 be a t l by m u at qn Qt th v v and hm h e ea e ro 5 9.- her s re of the impression; cylinder 2 ll ,upon the plate b s as ei fladi s let meanest t e. hand Wheels 228 and 2 3 5 and I the planl; 1 back el l 1, 4 nd 242 a hQ nil s b th an 0f he c n i t meu ins o he shaft. 244 11 a n imes b m i a ne e p oper tension on the sprockets zlv by} adjustment loithe studs 2B and'Zl upon whichthe, sprockets 2| are mounted, certain plank supporting mem bers i4 being simultaneously adjusted tomaintain the guide grooves I5 and I1 uninterrupted. A driving motor 22 is shown asadapted to drive operableparts oi the r various units cf the machine ,by interconnected gearingand to also drive;v theplates l lpast theseunitsby means of the ei t -l r m l n PM i Arrangement 1 is herein shown {whereby the planks 12 will be f rmly supported-as they'rnove aboutthecorners of 1 the :frame l3. For instance, referring to Figure 1, asltheplanks l2.approacht e l a ner; of h h am ;,c t en em ner1a engages against the arcuate portion iflfi :oii the groove 1 I and the rollers I6 arerdisposed inrre spect to the grooves [S as shownbydotted circles in-Figure 1. The rollers lfi at opposite-corners of in th planks [2 against rocking movement 3 and are smoothly guided aboutK-the corner; the surfaces or the arcu ate portion 286 l and of the garcuate corners 3. m 88, ser n to p ov d i hreer poin bearing rfor the planks during their movement about the corners of the frame I3.

In View of lthe inclusion the structureofra flat, plate printing machineof the new landguse ful creatures sdescribr digabove and which will the;

7 ii engage and are supported :by} arcuate corners 28 1 and 2 88 of the members I A, 'IIle planks l3 are therefore firmly supported iIt-will ibe understood-that, the invention may thereof,- and itis therefore desired thatcthevpresent embodiment be considered in all respects as illustrative and not restrictive, and it will; berfure ther understood that, a each and: every novel fear ture sanducombination present in v or i possessed by the mechanism herein disclosed formsatrpart 0f the inventioniincluded inthisapplication'n l -What I claimisz: "1 a 1; in .n 1. .In-M a flat plate printing, machine; a plate inking unit, a plate wiping unithavingi alframe; aiwiping pad 'carriedby theframe) means to re: ciprocate said frame transversely acrossrthe-path of movement of the plate, including a; power driven shaft, a driving: pin: movable .with. the said i shaft and .eccen-trically positioned:relative thereto, an eccentric bushing rotatably: adjusta able onsaid drivingtpin, clamping means to:ad-. justablysecure said bushing; against rotation 1 in any predetermined angular position with respect to the driving pin,=yand a pitman. connecting the bushing. :With said. frame, the angular position of the bushing'ideterrniningr the amplitude rofereciprocatorylmovementiof the framew w 2; In" adiat plate printing mashing-a. plate ink-5 ingvyunit a plate printing unithavingoa' driven impression cylinder, means to support andlguide a pluralitywofwdriven plate carrying planks past said printing units abeneath the; impression cyl; inder, 'means. tosresiliently support saidt cylinderagainst downward movement towards: the iplanks; and. adjustable pressure effecting means; tocpress said: cylinder downwardly lagainstr a plateson a' plank beneath then-impression cylinder. my: 3. In a flat plate printing machine, anplate carrying plank," a frame an impressionaroller under which theryyplank is emoved; a: backup roller to: engage the: plank to resistv downward pressurerof, the impression roller, on the plankya shaft; for- :the back-up roller," :and an; eccentric support secured'xto. each: end of the shafty t he saidshaft andizeccentric supports being rotat-i able in the; frame tosadjust the elevationiofl the back-luproller. t 4. :In a flat .plate printing 3 machine; I a: plate. inking; unit, a printing; unit having; a; driven imi-J pression cylinder, means to ;support and guide a; plurality of driven platecarrying planks past said printing o unit;beneatl' 1 the impression cylinder, haft 1 ends carr ed by the, impression cylinden-t a bearing for each shaft end, a plurality 0t springs arranged to resilientlysupport saidbearingsand impression, cylinder against 1 downward.

movement, a plurality oflsprings arranged ;t0 :re-

plank, means to simultaneously adjustlthea ten? sion of said; bearing -supporting; springs Qand means to; simultaneously adjust the tension; of a d l det sin p ings; to a y th mesa sure of said cylinder uponthelplateaa" s- 1.5. In an intaglio plate printing machin oanl impression rolleriadapted to cooperate Withla-rig-L idly supported plate. movable thereunder to print a sheet, resiliently supported movable bearing members: for the impressionwroller, abutments positioned adjacent the bearing membersysprings operably: positioned :between the xabutments .and

the bearing ,members means forwmoving the" abutments relative to the bearing members to adjustably vary the tension. ofethe springs ito thereby :viary the pressure: of: the rollerr rta'gainst the. 1plate,a member :movable with the 1 bearing members, a member movable with the abutments, and an indicating device operably positioned between the said members to indicate the pressure of the impression roller against the plate.

6. In an intaglio plate printing machine, an impression roller adapted to cooperate with a rigidly supported plate movable thereunder .to print a sheet, movable bearing members for the impression roller, relatively light springs arranged to thrust the bearing members upwardly, abutments positioned adjacent the bearing members, relatively heavy springs operably positioned between the abutments and the bearing members, means for moving the abutments relative to the bearing members to adjustably vary the tension of the heavy springs to thereby vary the pressure of the roller against the plate, a member movable with the bearing members, a member movable with the abutments, and an indicating device operably positioned between the 'said members to indicate the pressure of the impression roller against the plate.

7. In an intaglio plate printing machine, a frame, a plate wiping mechanism having a reciprocating wiping head, a pair of guides secured to the frame, and rollers secured to the head adapted to engage the guides and thereby guide and support the head in its reciprocating motion. I

8. In an intaglio plate printing machine, a frame, a plate wiping mechanism having a reciprocating wiping head, a pair of rectangular guides secured to the frame, and rollers secured to the head adapted .to engage an upper, a lower and a side surface of each guide and thereby guide and support the head in its reciprocating motion. i 1

9. In a flat plate intaglio printing machine having a substantially rectangular frame, a plurality of rectangular plate carrying planks movable about the frame ina horizontal plane, an endless chain to which each plank is'connected, a plurality of sprockets supporting and driving said chain, and means for guiding said planks including ways adjacent outer sides of the frame and cooperating rollers rotatably supported and secured to the underside of each plank adjacent the corners thereof; said ways having curved portions arranged to simultaneously engage a plurality of the rollers that are in engagement with the said ways to guide each plank throughout its movement where its direction of motion is changed.

10. In a flat plate intaglio printing machine having a frame, a pluralityof plate carrying planks movable about the frame in a horizontal plane, an endless chain to which each plank is connected, a plurality of sprockets supporting and driving said chain, and means for guiding said planks including ways'secured to the frame and cooperating rollers adapted to engage the ways; said rollers being rotatably supported and secured to the underside of each plank, one of said rollers being located at the center of each plank and following the path of the chain, and other rollers being disposed adjacent the edges of the plank,

said ways having curved portions arranged to guide each plank where its direction of motion is changed.

11. In a printing machine adapted to print from fiat intaglio plates and having a plate wiping mechanism with a wiping head under which the plates are. passed, said wiping mechanism including a frame, member carrying a block; which sup-- ports Wiping material; a plurality of supporting" members having spring means associated therewith for supporting the block, and a plurality of adjusting devices operably opposed to the spring means. and separately operable for adjusting the elevation of the block.

. 12. In a printing machine adapted to print from flat intaglio plates and having a plate wiping.

geared to the nut members whereby the elevation of the block may be adjusted.

13. In a printing machine adapted to print from flat intaglio plates and having a plate wiping mechanism provided with a wiping head under which the plates are passed, said wiping mechanism including a frame member and a block which supports wiping material; means for'supporting the block below the frame including a plurality of threaded rods secured to the block, means for biasing the rods upwardly to support the blocks, nuts on the rods and engaging the frame, gear teeth on the nuts, and operating shafts having gears thereon engaging the gear teeth on the nuts, whereby the elevation of opposite sides of the block may be separately adjusted. I

14. In an intaglio plate printing machine having a' reciprocating wiping head, means to reciprocate said wiping head, including a driven shaft, a pin movable with the said shaft and eccentrically positioned relative thereto, an eccentric bushingrotatably adjustable on said pin, means to adjustably secure said bushing against rotation in any predetermined angular position with respect to the pin, and a pitman connecting the bushing with the wiping head, the angular position of the bushing determining the amplitude of reciprocatory movement of the wiping head. a

15. In a fiat plate printing machine, movable plate supporting means, a plate inking unit, a plate wiping unit having a frame, a wiping pad carried by the frame, a plate wiping web movable beneath saidpad to wipingly engage the surface of the plate as the plate moves relative to the pad and wiping web, means for intermittently feeding the movable web beneath the pad and relative .theretoto present fresh wiping surfaces to the moving plate, and means for automatically looking the web against movement when it is being engaged by the moving plate.

16. In a plate printing machine, a plate inking unit, a plate wiping unit having aframe, a wiping pad carried by the frame, means for normally biasing the wiping pad for movement upwardly away from the printing plate, and means for moving the pad downwardly in opposition to its upward bias to thereby adjustably position the wiping pad in wiping engagement with the plate.

1'7. 'In a flat plate printing machine, a plate printing unit having an impression cylinder adapted to engage a plate supported on a mov-- able plank,-means to resiliently support the impression cylinder against downward movement towards the plank,and adjustable resilient pressure effecting means to press said cylinder downwardl-y against the plate on the plank.-

VZILLIAM F. HUCK.

Images