US1600236A - Proof press for multicolor work - Google Patents

Description

Sept. 21 1926.

F. C. MARQUARDT PROOF PnEss FOR MULTIOOLOO worm I5 Sheets-Sheet' 2 Filed Feb. 20, 192:5

lilllal ,gre

AAL" A TToR/vgy.

Sept. 21 192e. 1,600,2s

' F. C. MARQUARDT v PROOF PRESS FOR M-ULTICOLOR WORK Filed Feb. 2O 1923 5 Sheets-Shes?I 3 upon opposite sides of the bed,

' operation from all of said p A y f p urality' of differ-1` *attentati Sept. 2i, L26.

UNITED STATES PATENT .resem e. MARQUAEDT, or nnooxLYN, New Yonx, Assronon 'ro nemesi? .nenn contenir, or NEW YORK, N. a conronarron or new renza.

PBOF PRESS FOR MULTIGOLOR WORK.

Application lied February 2i), 1923. Serial No. 620,171.

My invention relates to a proof press :ter multicolor work, and more particularly to e proofV press by which trial impressions in e plurality of different colors may be made under conditionsA which will .approximatev working conditio'ns ina multicolor printing machinef In multicolor Work, it has been thecom- 'mon practice. to ink the plates for each color separately and pull'proofs from each plate entirely independent of every other plate and ythereafter to pull. proofs showing progressively the elects which will be secured as succeeding impressions in a predetermined order'are made upon the printing machines. ln this way proofs are Asecured which not only .sho-W impressions from the different plates in their distinctive colors, but impressions showing the progressive development of a complete reproduction including the combined cumulative impressions of the first late with all succeedinmr lates so as to l) a: P a

show composite imprints after each impression is made from these plates, in the printingznisehine'. Such proofs .were pulled by means of au ordinary 'ned or galley bed adapted to seceivey the printing plate, usually a helft-one plate.r and en impression cylinder provided with the usuel 'felt blanket, and .Testing ianged Wheclsmovingon tracks although u. -er snee conditions the old strewplaten uns bei press iras used for this purpose.

A prooi press embodying my invention is se oonstract'edthet a sequence of plates each representing a portion of a completed design, may be inked vin one or more colors las desired, and n single proof 'ull-edwith one etes, the resultimpression being in. e ent colors.

The constructicncf the machine is-such ir desired a separate proof may be d 'trom each plate, or of any7 desired grouping; of plates, to facilitate the make- -ready of the press upon which plates correspondin with those of which proofsiarie being ma enre to be used, as well as to segregate the design of each plate to facilitate the production of photo-engraved plates for use upon the printing machines. Furthermore, proofs may be pulled from a plate or plates representing only 'a fragmentary part ing cylinder 'reuirino" a security or so that as said cylinder passes the .plete u on each holder, the ink designupon cach p ate 6 will be transferred to within. the same .aren upon the printing cyiinderythe iines lof vthe design upon one plate being in register with those upon another plate, and the impression being made upon a sheet of palper carried by an impression platen `with which the printco-oerates after it, has received the inkedy plates. v

` The proof press of my investie:iv is par- 'I' ticularly designedfor usein connection with the production of safety vtints, orsefety line designs, in bank notes or similar instruments print'thereon, suph tints inarily being lightv impressions. with special inks so that but a. single nking of the plate is required.

The press of my'invention is so constructed that the printing cylinder normally nraintainedl above the plane of the impression platen 'and of the 'plates'upon vthe vari-4 ous plate holders, during :the movement of. the carriage carrying same? in one direction, (this carriage havingreciprocatory movement) the printing cylinder being lowered automatically so as to cause each plate to cylinder or a multiple thereof.

esign `.'roin theplate or Sil transfer its portion of the design .in ink to V actuating same.

Primarilytlie purpose of the dpress of my invention is for' aying out, or eterminin'g, an arbitrary color scheme, the inking being done by hand and the plate holdersbeing so 'auf `1ct 'mechanism for controlling the power for platen.

l holdersadepted to .receive printing'plates, an impression4 platen, a reciprocating car-y rierfe; a printing cylinder having a plan-oconstructed thatwith an inlring roller oi a certain Width, a stripe of ink may be applied obliquely to the center line of the plate at a definite angle so that the other plate holders may be set at a corresponding angle to permit the' matchingl of colors in different plates. This condition Vis due to the fact that different -colors 'may befand ordinarily are, used upon the same plates, the work in connection with which the press of my1 nvention is used not involving plates -sach having their own distinctive color asin ordinary multicolor Work, nor colorveiects secured bythe blending or overlaying oi' inks of different colors. Each plate used upon a press of my .invention represents merely .a Y' part of a design entirely independent of the.

colors which may be used, or the area. covered by an particular color, suchV matters being entirely under the control of the operator of the proof press. i

Since capacity is no factor in e press ot this character, and since the preparation of the plates including inkinp,r is a hand operation, power is required only vvhenthe printinga cylinder is to be actuated. 'lo meet this condition, provide a controller" mechanism which is readily. accessible' to the operator of thevpressfat every .point at `which the earrings carrying the-'printing cylindermay bebrought to rest, so that while' the controlling mechanism may he automatically lactua/ted to reverse the direction oi travel ofy the -carriage'carryinq the printing" cylinder,` the operative eilect of this mechanism is al- Waysfunder the control ofthe 'operator'. so as to permit the starting, stopping and` revereiner of the carriage entirely independent ly of the automatic mechanism.

yThe above'characteristics in the control of the machine, require the provisionY of means supplementing the automatic,mechanism for bringing the printing cylinder into the operative relation to the printing plates andthe impression platen hy a hand control for impartingmovement to Athe cylinder into and out of suchoperative relation, which mechanism moy also be utilized for moving` the cylinder away from the impression platen, afteran impression has been made, so asy to prevent possible oftsetting` upon said The invention consists primarily in 'a proof 'press for multicolor' Work embodyinpV therein a bed having a sequence oli' plate graphic ,odset .printing surface thereon' mounted. upon said Garrison.' means simili-.

taneously imparting definite positive rota-- tive movement to said'c'finder. and lineal vhorel' ,spider/l'.

luto theopera- A. I, 1nd r is brought succsssiv t1 n tation la Has nietes upon each of Said plate holders, and said impression platen, and means whereby said cylinder may be so set as to operatively engage plates uptm said hed. and said impression platen, o" to be held out of engaging relation therewith, said plate holdersbeing so positioned With rel-an tion to each other, and said printing,r cylinder being of a diameter to cause the design, upon the different plates to be impressed in ink in registering relation upon saidylinf. der; and in such other novel features ot'f construction andcombination of parts as are hereinafter set forth and described, and more particularly pointed out in the claims hereto vappended.

l lReferring,I to the drawings,

Fig. 1 is a side elevation of a proof press embodying my invention;

Fig. 2 is an end view thereof;

Fig. 3 is e crosssection through the printing cylinder and its carriage;

Fig. 4 is a lan Viewof the press broken away and concensed;` l c Fig. 5 is a sectionalview illustratingrthe throw-ofi mechanism operative upon the cyl-A inder; and

Figs. 6j and 7 are detailedenlarged Views -of one of the plate holders.

vdistances one rromtlie other, a sequence of plate holders A,"the'number of seid plate holderscorresponding with the number ot' cylinders to be used in the printing machine upon which the-plates from vvhich'proofs are: pulled, or plates made therefrom, are to .be used. Ordinarily a four-cylinder printk ing, .machine is used for this Work. n all of the cylinders are not used upon every job, l preferably employ four plate holders, although the construction of the proof press is such that any number of these may be used. Also carried by said bed at one end of the sequence of plate holders, is an impression platen 13.

Throughout the full length of the bed. upon opposite sides thereof, are tracks 14 and 15 along-Which e cylinder 16 having' a planopjraphic printing surface 17 is adapted to-roll so as to be brought successively into the desired operative inlring relation to plates upon the various plate. holders A the impression platen 13. The cylinder 16 is provided withcircular end plates '18 and 19 cooperating with the tracks 14 and 15 respectively, and preferably yformed inte-V grally with said cylinder.

The cylinder 16 is carried' b va v4hollenand @e respectively. said bushings beingr pi vided lfeit-the purpose of permilriiig tl,

AvAnABVLECoPY Leonesa o y v Y -omziio or manuel n'iovezne. o* ine cyliner i6 toward and fromv the bed l2.

Tnfsliaftl 2G mounofi upon a sieeve mounted upon @,'ie rofl 26, one end of Wl'a'cn maiis' solfewhreeded, as shown, and enby Inni 271 By this construction .a composite simi@ is provided which may he `4 einfoice. es sliovsvn,4 as io provide ine desi? rizgii'i bee-ying areas for a eored cylindelg while :1i: the same 'time the cylinder Inny,'hiough he shaft 2G,l1e connected with the Source of power for rotating saine, or dieconnece fromsucii source of power io pei-zint manuel o-peation of the cylinder, 'Wlze desired.

mounec' in bearing blocks 28 slidaoly mounted inside lplates 29 of the carriage 2%?, which carriage Vis movable longitudinally ei ined 12. `Said blocks are supported ij'- sntlbe springs 3l, are forced into tliedeeimfci engaging i'elatioewth the plates upon theloe' 12 bymeans of sczvews 32 curb'y the side oeesJQ' and. acting upon mid bloeiaze 38 und against the tension of the spmngs v Cm1'ied bythe bed 1-2 adjacent the tracks 14% and 1.5 respectively are racks B3 end 34 eo-opefninn with which are gears 35 und 'earrieri ny ine Shaft 90u* osely afijaeen fue and nietes. 8w-1Q.. of the cylinder 16. sacl gears beingseoured infreiaion to said 'eliai' incl seid cylinder innny desii'ed mimne'e o to impart expositivo rotative moveto'iie cjliinder :itwainniiorrn fai-e of reverse with ille i'oljLti/on of 'they elui'fiul) and oyliuier E6 carried 'thereby- '.llis oonsrnetion is; n'iovifled/ because positive i'omjv movement of the vylinder is essential in order lo Cure proper register of the de sigr'ie uponA the, dilerent printing plates, ily heso'oiu'ed by filo positive alfion oi the cylinder, great ex- 'in possibi@ when mok 'freaks neri ncion wheels we nsefi. K

of' ine nechine', upon opposite li. 'is "providnd with climi-nele 3?' sive rollers 28 which engage @of 'e l channels and prevent any action of die eaiinge or of the cyl.- can-Pied thereby es a, resuit of the ni' o the blanket with the pleins Y impression platen.

'painted upon thesle'e: Si u, 39' adapted to be connected `to 115123/ means 'of a clutch L10 normally ai ine set position by ineens of lle rod :.26 and me nut 2?-, 'the cluch member 4G oei'o spint-ted fo Bald sieeie 2l and acted upon by a plete fil carried by 'the rod 26. The

gen1' 39 in eonstnnt mesh with a. travelling wenn l2 'Jlidably mounted upon a shaft 43 e'fffendmg for the ful Iength of the me,.-

ine,' said shaft being grooved? as shown 4, fof lle purpose of 1'e\.e1mng a sonne movement of the worin 2.,

si emenric bushings 23 and 24 are 'Wheel lconstructien des@ portions of the design ..zmriii di 'movement of the e Giving o fue .length of ihe shaft C13, have found il'y desirable `to provide quence of swinging' p'foke'supports which ex'igagenent with said shaft 21 different portioiis of 'ille length l'ieieof, 'will prei 15 saggix'ig o lie Shaft Wh'iie nOJ'ineS'ieing in any im); Willi lie free ieoiprooe-toiy The inner ends of the fsnppoi'zs 45 nre 'enuniler'weigj'nieol,` us at lZVio ensure rheii' 'return to normal po sition', with the yoke thereof in engaging re lation with 'the shaft 4&3; ei-eifiliewoi'm lms in passing ,moved seme fiom zheir non mal opera-tive posi'ion,

The shaft 125' is roai'ed in any desired manner, es by Ineens of a puley and neil'. mechanism 4S driven from the Inoor l By using the siiolinl Worm and worm 4 ie-fl, l ein eiii'blei so secure uniform. angular speed oi* 'the inder 1G with tr1e,de:-;irecl reduction in speed'V to eeeuieeL p'oper inlring int-fermi, g e proper impression .interi/s, unifoiiniiy in JU' the' Speed of traverse o? cylinder being a factor in securing' :register of ifi' plates upon the pinto ioliiefs A.

Assoeieted' 4with mono? il is 51 bie eiectrieal controller 50, il" i which has a gen1 51 ooopeaiing i bi1, u 52 carried by i 'sliing oii einem fof the uli length of lle nmciiinif. eai'liege 80 has nv nYoke 543: strzulclline' 53l fumil adapted 'to engngezuljw" lays and ftlie fennel of Whi A part movenien, in ine rod 523 in f tion to aoiinue the Controller in u, fnnne'znr to reverse thedireeton of drive of. 'i tor 49, and the iuttero which will movement said rod in n nmnnei' mp the circuiti o'ino moine stop the curiiag'e :limer en ini-m been made. Since the roflA Si! Y enxire lengiih 'of the :'nacl'iine upon thereof where lie operato? i parent tlm?, the conf.;v lle? 5U may i. ally operatedv oy nieI cause it to reinen to i 'fore it has eoninleied movement. This ooiisirefze'iz--oi'i in when u proof from any nun'ibo 'the full number of plates; is desir im Working conditions do nm jnsz .ieefgiusb ment of the collar t is appment that whei'e eleeiicel power is not used upon the n1aeiiine,.'one weil V known expediens l'ieving the' seine opera.- ive effeot as the Controller 5) may be e1nployed, it 'seing desirable to provide a drining mechanism for c aiiisge conn-oli o by an automatically' eciinn reversing:

sion zneclmnisxns, einen eiunrolei'j non 4 may be manually actuated for starting, stop- `pingl and reversingI the actuating mechemsm.

l also provide means whereby when the clutch 40 is released, the cylinder 16 may be turned manually by means of intermediate ' ears 57 and 58 and in mesh with the actuating gears 35 and 36, one of which' the gear 58 is driven from a. gear 59 actuated by means of a hand crank 60. The gears 57 and 58 are carried by ahollow shaft 61 extending from one side ot the machine to adjacent the other' side thereof, said shaft being rotatably mounted upon aA shaft 62 which, as will more fully appear herein" after, also forms a part of a mechanism for actuating the eccentric bushings 23 and2ij.

The shaft 62, adjacent tlieopposite ends thereof, is provided'with crank arms 63 and. 6e which are respectively connected by means of links 65 and 66, with the eccentric bush- .ings 23 and 24. Said shaft 62 is mounted in the side frame 29 lof the'rnovable carriage pensate for any slight absence of .precision in set-and to relieve the ja'r of'ilnpact, although this latter function is not essential, particularly in View of the fact that the pluugeritself is spring-pressed.

The impression-platen 13 is preferably a,

spacing .of theseybolde'rs from each other and 'from the platen 13, but to permit such'ad justment as is necessary for accuracy in the ositioninv of the late u on one holder with relationl to that upon everyv other holder.

and the end thereof upon' the same side of the/Each Pil hOldc/' iS alSO SO COIlSllrlCted HS machine as the controller rod 53, carries a gesuiti? and an operating handle .68r so vthat said eccentrics may be manually 'actuated ineither direction to bring; the print-ing cylinder 16 into the operative relation to the plates. upon the various plate holders andto the imfin'essiou platen, or. move it out of such relation. .ln addition to this manual control for the eccentric bushings, or tlirowoi` mechanism l provideautomatically acting n ans operative upon said shaft 62 whereby eoccntrics will be automatically actu'- ated to move the printing' cylinder into 'the operative plane in relation to the plates upon v-the holders A and the impression platen toward one end of the reciprocatory movement oi the carriage -30, the manual actuation of the bushings for moving the cylinder out of this plane being entirely feasible since it will require no movement of the operator from adjacent one end ot the machine to adjacent the other end thereof, and since capacity output is not a factor in the operation the press;

Mounted upon the side of the'carriage 30 is a crank Alitting, one crank ot which is provided Witha segmental gear 89 in mesh with the gear 67 carried by' thev shaft 62, and the other crank 70 oi. which projects in the path oi" a tappet 7l. carried by vthe spring-pressed' slide 72 mounted upon said carriage in suitable bearings, the end of said slide being so positioned as to engage a bumper 73 at. one end of the machine in 'a position where it will engage the slide 72 toward the end ofv the reciarocotory movement ot the carriage irection, While allowing a sufficient part the maxi- `o operate the `ret'erably per to comm one period 01"' engagement tu .nuun movement vto thi4 eccentric bushings f this bumper is a cusy to Vguide the inking roller tov ensure the inking of theV plate with stripes of ink,A as

determined by the length of the inking por tion of the roller, means being' provided whereby the portionof the holder carrying the plate and the guides :tor the inlring roller may be angularly adjusted With relation to 4each other, to permit the applic-ation ot stripes ot' ink obliquely to the center line oc the holder. The portion of the holder adapt ed to receive and support thc plate is so constructed as to position the clamps operative -upon the platel with accuracy, and at the llt) same time permit, theirreetilineal adjust nient longitudinally of the bed orp the press,

orv laterally'thereof forthe purpose oft secur- 'ing register of the deslgns upon the differentplates.

In Figs. 6 and 7 of the drawings, lI have illustrated the form of plate holder 'which l, have found highly satisfactory in use. This plate holder comprises a member 74 adapted to rest upon the bed l2 and having parallel raised tracks 75 and 'ndjaceut opposite edges thereof.' lnthis portion 74 is a circular opening adapted t0 receive a segmental fitting' (7 having a rectangular' portion indicated at 78- ndapted to receive a plurality ci square blocks 79 and a second set oi" oblong blocks 80, which blocks are eapable of being so nested as to form 'pocketshaving slideways 8l therein in which clamps 82 are slidably mounted. Each of the clamps t'is .ilo

provided with adjusting screw.' as 83. These clam s are arran'ed in airs to torre entering. correspoi'lding openingsin said bed.

Tivo pairs of Xsaid clamps engage the end edges of the plate adjacent the side edges thereof. the remaining pair of clamps engag'-4 ing said. side edges substantially centrally thereof. The adjusting screwsA 83 adjacent the rectangular portion 78 bear against the edgel wall of this portion, locking bars 86-87' bearing respectively upon the adjusting screws of the clamps engagingr one end edge of the p1ate,'and the adjusting screw of thegclamp .engaging a side edge of the plate, being provided. These locking bars are spring-pressed into engagement with the edge of some of the blocks 79 andBU and present'invention, it being merely necessary that the spring pressure rigging operative upon the. bars shalll bearfagainst the Wall of the circular opening in the portion 74' and be tormed'ln an are so as to prevent displacement of these parts during circular movement' ofthe member Je in relation thereto.

The member 74 and the segmental member T? are provided with registering openings by which these parts may be immova-bly keyed .together by means of the pin 89. f The operation of the herein described mechanism is substantially as follows Lnuse, a proof press embodying my invention differs from proof presses heretofore. 'used in that Whilein ordinary proof presses. the purpose is to secure a specimen impression for determining;l accuracy in a plate and permit correction .of any errors before the plate is used, the press of my invention is designed to permit the determination of the color scheme ot' a completed impression, which scheine is arbitrarily determined by 'the operator of the machine, the lines of the plate being i'ncrelyvfor dotern'iining the portion of the completed design which is to be: thus-inked. The completed proof is a dein many colors, the combined product of the plates used, of the n'ianner ot inkiug euch plate, and of the .functioning of the machine in collecting impressions from thev diierent plates upon a pflanographic print' ing cylinder from which the proof itself may he made by a single inipre'ss1on- The s in the diierent holders` 'lie printing surfaces positioned invention, to point outI thatl the. production ase 'E with regard to the lines ci different platee or any one plate,-or considerable areas of the design upon one plate may be deleted, the nonprinting space thus left serving to permit portions oi the design correspt-nuyling with those deleted, yappearing upon. other plates, to permit the desired inking ol the platesin inksof different colors in such portions.' Furthermore, While the proofs pulled .by meansiof av machine embodyin I5 my invention will represent the. comoletefgl desic'n, these plates may not correspond with the plates as actually used onthe gmintin'lgy 1 machine, but will serve as a guide to assistl in the preparation of such' platesl as are used upon, and in 4the makeready of, lthe printing` machine.

The above condition is due to the fact that while the plateslfas used upon the prooi` press will produce bute single complete design., thev plates actually used upon'- the' printing machine bear many reproductions of'this same design, such plates being acid etched cameo aluminum or zinc sheet A proof press embodying niv invention embodies characteristics by which cach' plate may be accurately inked throughout any so; lected area', so that the inked Aareas of different 'plates will form complementary portions o'ffa complete designfnd means where- 'as by the ink `from the different plates will bel y combined upon a printing cylinder so as toV permit the making by a single impression of an imprint in all of the colors used'. The press is also capable of being so controlled that an impression from any plate be made entirely independently of the other .mit

plates, may be combined and produced so as to guide the operator of the 'printin'gmt chine for' reproducing this design., in the me, production of the plates used upon; said 'printing machine, and in the, makeready 'lof V'the machine.

In a printingpress for reproducing designs in connection with which the prooi" press o my invention is employed, the marrimuinnumber of plates which may be'used upon the machine is four, so that four plate holders' A are provided 'in the proot' press, although it is not essential that all of these H5, holders be used upon every job.

While -the present invention does not involve the making of the original plates, it is necessary' for a clear understanding ,of the o 20 of such platesinvolves the making of a com` plete design andthe separation of, this design into as many parts as thereA are to be plates, this separation involving the' dele', tion of lines 'in' the'designi for eachl plate, 125 which lines appear in the design forfanother plate or plates, o r 'the deletion of different but complementary fragnuintaiy por i the design. for cachplate, vh tions are retained in another,

ln this manner it is possible for closely adjacent lines as they appear in the completed design, to be in different colors and portions ot' the design in one color may be completely surrounded by other portions of the design in a different color or colors. y

When such plates have been prepared the are mounted upon the respective plate hol ers A, and the lines upon the different plates are brought into accurate register by means of the adjusting screws 83, the member 74 and the blocks 79 and 80 serving ,as a rigid support for the plates, the edges of the plate being engaged by the projections 84. The rectangularv portion -78 will ensure approximate accuracy in the positioning of the plate in the. holder,V the screws 83 merely effecting 'that minute adjustment which 4may be necessary to secure absolute accuracy of register of the portions ofl the designs upon ythe dit- -ferent plates, one with the others. The lock-- ing hars 86 and 87 engage one clamp screw of each pair of clamps and permit the separation of these clamps to receive the plate while ensuring accuracy in the closing of the clampsupon the plate and the proper holdingof the plates when once in position upon the holder.

After the plates are properly positioned upon the holders, an inking roller having flanged end Wheels movable upon thetracks 75 and 76 is used to apply stripes of ink of the desired width and of the desired color to the plates, each stripe being of a width less than thel entire design, either as a result of limiting the area. of the inking rolle-r to which ink is applied, or using an inkiug roller having a surface area of a width corre'- spondimgr With the desired width ot stripe. Each plate will be inked as many times as there are dill'erent colors to be used upon that plate, the arrangement of the printing lines upon ,the plate determining the color eli'ects secured in the completed design, or the portion oi" the'plate which will be inked by this hand inking roller.. The tracks 75 and 76 will ensure lineal application of the ink to a certain definite area upon the plate.

In some work it is'desired to have a somewhat triangular portion of the impression in one color so as to avoid, in any completed impression, tlie effect of stripe hiring. it helng necessary when this practice is followed, to

impart a definite angular adjustment o the tracks and 76 ahout'the axis 'of the plate upon the holder so to ohliquely ink the plate,- This method ol inking will ordinarily necessitate a similar adjustment of one or 4more of the other plates, which may he read- Leccese the electrical controller 5() through the pinion 51 and rack 52 in a manner to apply'y power to the motor 49 and kthus rotate the shaft 4.3 and with it the worm 42.4 With the rotation of said worm, power will be transmitted through the wormv gear 39 tothe shaft 20 carrying the spur vgears 35 and 36 meshing with the racks 33 and 84 respectivefic 1y causing a simultaneous rotary movement of the 'cylinder 16 and traverse thereof lengthwise of the bed- 12. Said gears and said racks are utilized merely to impart the desired simultaneous angular ,andl linea-l movement to the cylinder 16, and' hence there is no necessity for absolute precision in the construction of the racks 33 and34 and the gears 35 and 36, so far as the development of pressure between the blanket 17 and the various plates upon the holders A' and theimpression platen 13, is concerned. As the carriage moves longitudinally of the machine, the wormgear 39 will carry the worm 42 along the shaft 43 to which it is splined, or otherwise slidahly mounted;

The shaft 43, as heretofore described, is supported against sagging by the supports 46, which' will he movedout o i" the path of the worm asa result of engagement between these parts during the lineal traverse of the worm along the shaft, the weight 4'( restore ing each support to its engaging relation with the shaft immediately upon the passage of 'the worm. ,Said supports 4-6 are provided to avoid possible los-a of mesh heifm,

tween the worm 42 and .the'u'orm wheel 39 l as a result o. sagging of said shaft 43.

Assuming that the prooi being made is to .include the inked design upon all tour plates,

the operator permits the carriage 30 to trav-el for the entire length of ythe machine until the yoke 5d. as a result et its engagement with the, collar 55. actuates the sliding rod 53, and the rack and pinion mechanism 51 and 52 to cause the controller 50 tolfreverse of theshat 43, thus initiating a. return movement oi'- the carriage 30 under the control of the same mechanisms used for moving it in -the direction olf-drive of .the motor 49 and ist its reciprocatory movement toward said collI 55. During this return movement, 4the printing cylinder 16 will also be turned ,in i

the reverse direction. l A

As the carriage 30 approaches the limitl bodying therein a bed having'a sequence of plate holders adapted to receive printing plates, and an impression platen thereon,y

racks along the opposite edges of 'said bed a reci pi'ocatory carriage, a printing cylinder having a planographicoifset .printing sur- `face thereon, mounted upon said carriage, vmeans simultaneously imparting definite positive rotative movement tosaid cylinder, and lineal traverse-to said carriage, whereby said cylinder is brought successively into the operative relation to' cachot said plate hold-- ers and said im ression platen, gears carried.

' imparted to said v.carriage andsimultaneous by said cylin er and meshing with said 'racks respectively, speed reducing .gearing operative to `rotate said cylinder said gears, whereby longitudinal movement is positive' rotative moveni'gent, is iinpartedtsaid cylinder, said plat'efjglrqlders being' so positionedl with relation to' eac-li othe1`;,";and said printing cylinder being/offavdiameter to cause the design upon tbeu-tli'ii'erent platesm' to be impressed in inkiin registeringIrela-v tion upon said cylinder and .means whereby said.cylinder may be so set as to operatively engage'plates upon said bed, 'andsaid iinpression platen, or ,to be held out of' engaging relation therewith.`v ,f .v

5. A proof press forfmulticol r work einbodying therein a bed having a sequence of A plate holders adapted to receive printing plates, and kan impression platen thereon,

l' racks along the opposite edges of vsaid lied,

a printing cylinder having a vplanograpghic oiiset printing surface thereon, and adapted l to be brought successively into the operative relation to each of said plate holders and said impressionv platen, gears carried-by said' cylinder and meshing with said racks respectively, a longitudinally movable carrlage" in which, said printing cylinder is rotatably being so positioned with relation to each i other, and said printing cylinder being of a mounted, and speed reducing gearing 'operative to rotate said cylinder and said gears,`

consisting of a rotatable shaft extending longitudinally of theV press, a worin slidablymounted thereon, and a worm gear meshing with said worm and operatively connected with said cylinder, whereby longitudinal movement is imparted to said carriage and simultaneous positive rotative movement is impar-ted to said cylinder, said plate holders diameter, to cause the design 'upon the platen, olito be held ferent plates to be impressed inink in reg istering relation upon said cylinder.

6. .A proof press for multicolor work embodying therein'a bed having a sequence ot plate holders adapted to .receive "printing plates, andan impression plateh thereon', racks 'along the opposite edges of saidvbed, tracks adjacent said racks respectively a re-v ciprocatory carriage, a printing'cylinder ha-ving a plaiiographic offset printing surface thereon, mounted lupon said carriage, means simultaneously imparting definite positivev rotative movement to said Cylinder, andy lineal traverseto said carriage, whereby said cylinder is brought successively into the opci'ative relation to each ofv said'plate holders and ,said impression platen, gears carried by said cylinder and meshing with said racks i'espcctively, oircularend plates upon said cylinder adapted by engagement with said tracks, to limit the downward moyement of said cylinder, speed reducing gearing operative to rotate said cylinder and said gears,

whereby longitudinal movement is imparted4 \to said cari'iageand simultaneous positivew rotative movement is imparted to said cylinder, said plate holders being so positioned L 1 with lrelation to eachother, and said printing cylinder beingpf adiameter,.to,caiise the 4design, upon the different plates to be Aimpressed in ink in registering relation uponV said cylinder and means whereby said cylinder maybe so setas to operatively engage .l plates upon said'bed and' said impression tion therewith.. y

' 7.v A proof press for multicolor workl embodyingthereina bed having a'sequence ofl` plate holders adapted to receive printing plates, and an impression platen thereon, racks along-the opposite edges of said bed, tracks adjacent said racks respectively, a printing cylinder having a planographic off set printing' surface thereon, and adapted to be brought successively into the operative relation to each of said plate holders and said impression platen, gears carried by said cylinder 'and meshing with said racks/ respectively, circular end plates .upon said cylinder adapted byengagement with said tracks, to limit the downward lin ovementvof out of engaging rela-v said cylinder, a longitudinally movable cari riage in which said printing cylinder is rof tatably mounted, and kspeed reducing gear-'f ing operative yto rotate said`cylinder and" said gears, consisting of a rotatable shaft extending longitudinally of the press, a

worm slidably mounted thereon, and a worm gear meshing with said worin and operative ly connected with said cylinder, wherebyy longitudinal movement is imparted to said carriage and simultaneous positive rotative `movement is imparted to' said cylinder, said plate'holders being so positioned ith rela' tion to. eachother, and said printing cylinlo.l

' longitudinally of said'b'ed, a printing mder 'having a jplanog'raphic offset printing l der,

8. A proof press for multicolor Work "embody/in' 'therein' a'hed having a sequence" olde'rs adapted to receive print-y 'ing plates, ,an impression platen, a carriage of` plate adapted to 'receive reciprocatory movement surface rotatably mountedin said carriage,

means carried by said carriage and operativeupon said" cylinder, whereby said cylinder-- other, and said printing cylinder .being of may 'be moved into or out of thev engaging relation top lates upon said holders and said platen, consistingpf eccentric bushings 'in which said 'cylinder is mounted, a crank:

shaft having a crank arm adjacent each of said bushings, links connecting each crank arm Witha bushing, an operating lhandle v upon saids'haft, a gear capried Vby said shaft, a crank fitting carried by said-carriage,- onev crank of whichhas a segmental gear in mesh y with the dear vupon said shaft, a springpressed slide-carried by said carriage, atappet thereon` in o erative relation to the other crank of said ttingyand a bumper at 4one end of said bedin. positionl tobe engaged by said slide, means whereby said carriage is moved lineallyland said' cylinder is si-` multaneously rotated, a source of power operatiye upon said means, a controller for sing power,fcooperating members carried by sai carriage and operative upon said conl trollertvhereby the engagement of said memg y 'bers -vvillactuate said controller to automatically cause areversal of the direction of'movement of saidoarriage, means :rolia- ,r

cent one-'endof the bed co-operating with/ thermes/ins ycarried by said'carriag'e for movin -s'ai-d cylinderint'o or out of the operative re ation .to the'f plates upon the holders-i- Whereby, towardl the liniitof the movementv fof'sad carriage in one direction, saidjcylindei 'yvill 'be 1moyed in one (infection'with= relation to said plates, and manually operative means 'whereby said {cylinder/may Abe moved in the opposite diii'ection, said platel holders beii'i'g'sopositione' -with'relaton ,to

each other," and said 'printihgcylindr being of a dametenftogcause the design' upon thel plates uponthedi'tferent plate holders to be impressed vin ink in4 registering relation upon said tylinder. f 9. proof ress-'for'multicolor work einbodying therein-abcd having a vsequence of" plate holders .adapted to'receive'printing' plates, andi an 'impression' platen thereon, racks 'along the-opposite edges 'of saidl bed,

' a rintingfcylinder''having a planograpliib o setfprinting su'rfaoethereon, andy ada-pwd.

to be brought successively into the operativea.y relation to" eachl otsaid .plate holders and Vle.

said impression platen, gears carried b saidk cylinder and meshing` with vsaid rac s re-l speotiveiy, a longitudinally movable carriage in which said printing cylinder is rotatably?.

.mounts-d, speed reducing gearing operative to rotate said cylinder and said gears, oon'- sisting' oit/a rotatable shaft extending longih tudinally of v'the press, 'av Worin slidably in ounte'd thereon, and a Worm gear meshing' with said worm and operatively connected With'said cylinder, whereby'. longitudinal movement is'imparted to said carriage and simultaneous positivev rotative movement is imparted to said cylinder, said plate holders being so positioned with relation to each a diameter, to cause the design upon the dif- `:ferent plates tobe impressed in ink iny registering relation upon said cylinder, means Mwhereby said worin gear may be disconnect- 1 ed from said cylinder, and manually opera tive' .means whereby said cylinder may be `turned independently' of sai 10.fA proof press for multicolor work ein-QQ bodying therein avbed havingia sequence oi position the plates on one holder in relation late holders includingftherein a plurality o rectangmlarly disposed:

to the plates upon other holders forlvthe 'purpose of securing accurate register, an

vimpression platen, a reciprocatory carriage, a 4rint'ing cylinder having a planograpliicf` o set printing surface thereon mounted upon seid? carriage, means simultaneously y imparting definite *positive* rotative movement. tosaid cylinder, 'and lineal traverse to said v carriage, whereby saidy cylinder isv itskv brought successively into sthe operative re- I llation to the platesnponemch' of seidjplate holders, and saidimpress'ron platen, and nieanswvliereby said cylinder may be so set as to 'operatively engage plates upon said bed,jand saidimprpssion.platen, or tolsel aio l he'ldout l'of engaimg' relation therewith, j

.said plate holders eing sopositioned with Irelation tol each other, and 'said printing cyl- Titiv -inder being of a diameter, to cause the de i sign upon the different plates to-be impressed in ink in registering relationv upon said vcvlinderl i u 11. 'A proofpress for multicolor Work'em 'bodying therein a bed having' a sequence of platevholders adapted to receive printing plates, each of Said holders including a mem I vvloer havngacircular opening therein,

lel raisedl tracks adjacentopposite edges. thereof for guiding an inking4 roller, a :dtf ting mounted in said circular'v opening and adapted to engage Aa plate, whereby saidr l vmember and said ttin .may have relative ly circular increment a out theiafxis of the viso movement, an vin'ipression platen, a printing cylinder having a planographic oliset printing surface thereon and adapted to be brought successively into the operative relation to the plates upon each of said plate holders, and said impression platen, and

means whereby definite positive rotative movement is imparted to said cylinder, said plate holders being so positioned with relation-to each other, and said printing cylinder being of a diameter', to cause the design upon the different plates `to be impressed in ink in registering relation upon said cylinder. f

l2. A proof press for multicolor Work embodying therein a bed having a sequence ot plate holders adapted to receive printing plates, each of said plate holders including therein a plurality ofrectangularly dis-- posed pairs of clamps adapted to engage a plate, means whereby the clamps of each pair may be rectilineally adjusted to accurately position the plates on one holder in relation to the plates upon other holders for the purposeot' securing accurate register, a member having a circular opening therein, parallel raised tracks adjacent opposite edges thereofforv guiding an inking roller. a fitting, operative upon said clamps,

mounted yin said circular opening, whereby said member and said fitting may have rela-.

tively circular movement about the axis of the opening in said member, to permit any de.c ired degree of obliquity'ot' the tracks upon said member with relation to the center line of said-bed, and means wherebyv lsaid parts may be loclrcd against such-circular movement, an impression platen, a. printing cylinder having a planographic offset printing surface thereon and adapted to be brought successively into the operative relation to the plate upon each of said plate holders, and said impression platen, and

' longitudinally of said bed, a printing der having a planographic off-set printing surmeans whereby definite positive rotative movement is imparted to said cylinder, said plate holders being so positioned. Withk relation to each other, and said-printing cylinder being of adiameter, to canse the design upon the different plates to be impressed in ilnk in, registering relation upon said cylin- 13. A proof press for multicolor work engbo'dying therein a bed having a sequence of plate holders adapted to receive printing plates, an impression platen, a carriage adapted to receive reciprocatory movement cylinface rotatably mounted in said carriage, means carried by said carriage andv operative upon said cylinder, whereby said cylinder may be Amoved into or out of the engaging relation to plates upon said holders and said platen, means whereby said carriage is moved llineally and said cylinder is simultaneously rotated, a source of power operi ative upon raid means, a controllerlfor said power, a rod operatively connected With said controller extending .for substantially the entire length of said bed upon one side thereof, a fork upon said carrlage straddling said rod, collars adjustably mounted'upon said rod upon opposite sides of said fork, whereby the engagement of said fork with one of said collars will `a'ctuate said con- ',troller to auton'iatically cause a *reversalv of the direction of movement of said carriage, and' the engagement of .said fork with the other ot' said collars will actuate said controller to interrupt the power for movin-g the carriage, means adj acentone end of the bed co-operating ,with the means carried by said y carriage for movingsaid cylinder into or out o'l.1 the operativerelation to the plates upon the holders whereby, toward the limit ot the movement ot', said carriage in one (li-- rection, said cylinderv will be-moved inone direction with relation to said plates, and manually foperative means whereby said cylinder may be moved in the opposite direction, said plate holders being 4so positioned with relation to each other,'and said printing cylinder beingof a diameter, tocause the design yupon the plates upon the different plateholders to be impressed in ilnlr in registering relation uponsaid cylinl i er.

.-Y14. A prooi press for `multicolor Work` l plates, -and an impression 'platen thereon,

racks along the opposite edges ofsaid bed,l a printingr cylinder having a"pla`nographic offset printing surface thereon, and adaptell to be brought. successively into the operative lrelation to ,each of said plate holders and said impression platen, gears carried by said cylinder and meshing with said racks respectively, a longitudinally movable carriage in which said printing cylinder is rotatably mounted, and speed reducing gearing operative to rotate said cylinder and said consisting of a rotatable shaft extending longitudinally ofthe press, a worm slidably mountedl thereon, a movable support nor-1 mally engaging said rota-table shaft intermediate its bearings and arranged in the path of movement offsaid Worm, wherebyv said support will be displaced by Said worm in travelling along said shaft, but will support the vshaft against sagging When not engaged by said worm, and a Worm gear meshing. with Asaid worm and operativelyv conneetedlwith said cylinder', whereby longitudinal movement is imparted to said carriage gears,

and simultaneous positive rotative movement Jis imparted to said cylinder, said plate lioldersf being so positioned with relation to each other, and said printing cylinder belng 'of a diameter, to causethe design upon the ditferentplates to be impressed in'ink 1n register irigifelation uponfsaid cylinder.

' y1 5. A1 proof press for multicolor work emi .K bodyingftlierein a bed having Q s'equence of l "platesyfaf reciprocatory carriage, a printing plate *holders adapted to receive `printing "jconp'Ie-cpnsisting of an impression surface :occupying: a fixed osition with relation to -said ,bedl and a printing cylinder'mounted l 1 graphic offset printing ,surface thereon,

iipon said carriage ana having a planomeans simultaneously .imparting definite fpositiverritative movement to said cylinder,

- operative. relation tothe plates uponveneh lof l faceand means whereby said cylinder mayvand lineal traverse-to said carriage, whereby said cylinder is brought successively into the said plate holders, n'ndsald yimpression asnrfbe so setas to operatively engage piates upon said bedfand said yimpression platen,

'l orto beheld out of engaging relation there- ,with, said plate holders being so positioned-v V,lvvith' relation to each other, and said .printing'lgieylinflcrbeing ofa diameter, to cause .the-design upon theA different gplates to be impressed in ink in registering relation upon said cylinder.

16. A proof'press for multicolor vWork embodyinfhr therein a bed having,lr a sequence of Aplate holders adapted to receivel printing plates, an impression platen, a carriage l adapted to receive'reciprocatory movement jijeoaaae a longitudinally of said bed, a printing 'cylinf der. having a planographic 'offset printing surface vrotatalrnly mounl d in said carriage, 'means carried by sai 'Ia'rriagel and operative .upon said cylinder, whereby said cylinthereof, a fork upon said carriage straddling said rod,'collars adjustably mounted upon said' rod upon opposite sides fof said fork, whereby the' engagement of said fork with one of said-collars will actuate said'controller to automaticaily cause a reversal of @the direction of movement of said carriage,

and the engagement ofsad forkrwith ythe other ofsaid collars will actuate said ,con-

troller to interrupt the power for moving4 the carriage, and means whereby said cylin` `der may be moved' into and'oiit of engaging' relation with the plates uponlsaid holders and said platen, said plate holders being so positioned with relation to each othervand said printing'cylinder being of a diameter,

to canse the design upon the plates'upon fthe different plate holders to be impressed in ink in registering relation upon said cylinder.

" In witness whereof I have hereunto atiixed FRANK C. MARQUARDT.

my signature, this 24th day of. January,

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