US2329454A - Printing machine - Google Patents

Description

Sept. 14, 1943. E.` E. BuRRouGHs 2,329,454

' PRINTING MACHINE Filed Oct. 23, 1940 3 Sheets-Sheet l E E. BurRouGl-ls sept. 14, 1943.

vPRINTING' MACHINE Filed Oct. 23, 1940 3 sheets-sheet 2 lo! @o III ' NVENTOR BY we@ ma AT1'i oRNEg SeptV 14, 1943- l-z E. BuRRouG-Hs l 2,329,454

PRINTING MACHINEj Filed oct. 23, 1940 s sheets-sheet s lNvENToR 1 s 4.roller assemblies A; B and` C. .y f

Patented Sept. 14, 1943 2,329.45; n -mnqmd vsignor' to Machine Gempnnymkf v laimjs. *j `This invention yrelates 'to 'an improvement in printingm'achinea capable 'of being operated as a .multi-color `or single 'color machine, andfcne 'of the objects o'I 'the 'invention .is the provision "of ka construction whereinthetransferrollers and pla'te cylindersy of each Aprinting' assembly can be moved away from the impression cylinder jno't only for the purpose of facilitating threading ofy 'the .machine ibut so that the inkmaybe thoreughly worked' npto` .the fplate cylinder 'before actual'printing is started,` and whereby but one color may beprnted, i-f desired, an auxiliary drive 'being' employedffor driving during thisper'iod.

This drive is automatically -overhauled byithe main drive of thezinachine when lthe inachineris nally started in 'operationl l A -further object or myin'vention machine in which Ithrow-'ods are provdcd'fr y.the transfer rollers .and plate cylinders, .means rbeing provided also for accurately positioningfthese and transfer rollersgas as'tne plate fwith thei'nrnirninncf ref lfort and accuracy. Tnasmcch'as the assemblies 'LA'. 15132111 JC are 'duplicates of lsich 'athena 'eresmas-on 'of assembly A is k.carmen en a :c mounted iin ,stood isiptatsdin themkin fountains.

isa printing elements with the minirnni -of 'effort and Vmaxi- A ymum of accuracy` insetting themachine up for operation.

lFfurther objects ci? -thekfi'nve'ntion appear K vfix-oni the description which follovvsr v f yIn the rdrawings wherein I haveillustratedene c embodiment .of ymy invention: n d Fig. 1 is aside elevational view'of the machine; Fig.2is a .plan View, some parts being shownl Lin section taken along the line124--2'ol;1i,"ig.`l`;V Fig. .3 is a view ron thelin'e 3 3 of Fig. 2';

Fig. '4 is .adview taken .at (fright anglesgtolisg.' 3; g

Fig. 5 is alv'ew of one ofthe platecylinder and o'i mechanisms shown in section;

Vtransfer roller assembliesvvith .one of the throw;

Fig. 6 is vra .section-on the, 'line yif 4ofk v5l Fig. 'l isa section `on the line 1 -l ofFig. .5; and l l Fig. 8 is .a Asection takenon the Fig. .5.

yline 8-8 of .Referring now ,to the'dawmgs moeten: y

machine, as illustrated, .is adapted for single and multi-color Work and hence embodies a plurality of plate cylinder .and transfer :and .inkiountain "Ifherpaper tothe printed may be taken-from supply roller ily and .discharged from-the machine,

for example, at l0.. y y y Y As will be seenfrom r.the drawings, `the Ipaper passesl from `the supply roller 8, about 'Aia guide roller L2, tensioning rollers i4, between impresi, The mk-transferfroner-32 kand"its1s`nart.a=l .are 'mounten 'in slides .n scanned Yto be moved inward and .wayrmm niej plate, syringes muy' rotation .sawiiiehfpassj'nircgninei siides 42.; l 1 inademen t'oh adjust "enteft trans,- fsr ramera-:zwakke @realiseerde iemand wheels ,u'caririeai-h the threaded shares ',prpvidedfwith a cooperates ,WJ

,ai agiremsyanie iranygpgss will as seen non backed, by, cmlspringsst;

Arms ma u@ is ,pssv'ijdsa aan 1a nasale fsa by ywhich'..it can bejgi .en a turn. Normally .operatinghandl v58 willl'be.inr vertical posiasgsiiowmmnig; igen; ,when'i't is desired se .throw me transfer .sauer azimut ,er @naar ijwah ,insaputa minder' 1a, as .mirarme in Fig. .5,

thenfnienandle Ba-isniwed r6 a/.hrizcntal posinbniwnisharmgs .nieren rits Bn' Enregistrer. wim nieiiugsjn a'pjanovvs' fthe r.srir'igs ss" te am te i321 and nenes che ink transea'muer is ,the 51ans silliness@ ,y y 1tai1lbe-ciiderstcagnf-eqrse,that by moviy'ing the 4:lever 58 back to' vertical positionfagan fthe transfer Yroller will bemoved intoengagement man@ @las aus@ The @e152 arefadiitebly mounted afs 1S 24?- pagrerrt .from Eligrfvslat 'the 4pressure of the l transrermu'sredanst the ,plate cylinder Ltsion 'cylinder-I6 andthe plate'cylinder llfpf assemblyyA, fromv thence about impression cylin- :der 2D, between itand plate cylinder 22 offa'ssemd bly B, then downwardlybetwdeen impression cylinder 24 and plate-cylinder 4216 of assemblyCj; and

,vfrom thence about ,roller 28! Yiinally discharging Afrom the machine 'at Ill.

"one or rheobjes'ts of my invention, as: above` pointed out, is the provision o vthroW--olls for the plate cylinders |8, 22 and 25 and for the transfer rollers as Well as means for adjusting the inking T Sio-ncylinders. ,f

with fixed cams 88.

fsprocket chain 92.

sprocket 04 rigidly mounted on a shaftv 96, `this -ing the plate cylinder. meshes withl gear .on the1s`haft`34 of theink .transfer roller 32,-this gear carrying the pawl ||2 of an overnmning clutch, the ratchet ||4 of the yroller andthe ink fountain roller cylinder |8 andink transfer roller 32 along with the adjusti'rigprod 46 `are carried' in frames 60' slidable in ways l|52 toward and away from lim'-k 'I'he opposite end of the shaft 34 carries the `pawl of an overrungnlng clutch, the pawl of `which is carried on the face Vof a gear |22. This pression cylinder I6. Below these slides are l blocks 64 pinned to rods 66 at each side of the'z machine, these blocks being in turn rigidly united to the frames 60.

Threaded on the ends of the .rods .66 remote'. from the blocks 64 are nuts '|0 each backed by, af"

`coil spring 12. Keyed to each nut is aworm wheel 14 and meshing with each of these worm` wheels is a worm 16 on a shaft 18 which extends 'parallel to the axis of the impression cylinder' and plate cylinder. The shaft 18 is provided with fa handwheel 80.' Upon rotation of the handwheel 80 it will be quite apparent that the rods 66 will be drawn to the right orleft, as the case may be, so as to .carry the entire assembly toward gear |22 meshes with a gear |24 on the shaft 30 of the plate cylinder gear |24 in turn meshing with gear |26 which is mounted on a sleeve on,

" but independent of shaft |04 of the impression i .wcylindera sprocket .|28 for sprocket chain |30 which passes The hub of the gear |26 carries about thesprocket 98 on the shaft 96. This chain |30 passes from the sprocket 98 to the sprocket |32 for the assembly C and about the sprocket or vaway from the impression cylinder ,depending `upon the direction of rotation of the handwheel.

Fora quick throw-off and throw-on, that is.

" for a quick movement ofthe assembly toward and away from thel impression cylinder I provider a plate 82`which 'extends acrossthe machine and i connected to thisplate atea/ch sid'eof .the machine is a lever'84'. At the outer end of the plate 82 I provide a'handle 86. The levers 84 are cammed at their outer ends where they cooperate By moving the handle 86 toward or away from the ymachine to effect vendwise movement of the plate 82, it will be apparent` that 'the levers 84'wil1 be rocked'to cause the nuts 10 to move to the left under the'action of the spring 12 toforceithe assemblya'way from the .impression cylinder" or to restore the assembly to `and transfer roller can'vbe' moved toward and -away'from the impression; cylinder and thatl this may be done quickly orslowly. It will be seen also that means have been provided whereby the Atransfer roller and ink vfountain roller of each assembly may be moved quickly away from the plate cylinder, means being provided also whereby the position of the.' inkk fountain roller and transfer roller with'respect Ito' the plate cylinder i may be controlled` slowly and very accurately.

As above pointed out, yone ofthe vobjects of my invention isv the provision' ofy auxiliary driving cylinders before beginning theV actual j printing operation'.`

Referring to this part 'of my invention; it 'win be seen from the drawings that at the upper part of the'machine I- providea motor 90 driving a This chain is carriedby a shaft carrying sprocket 98and v gear |00; 'I'he gear |00 meshes with gear |02 which isy rigidly 'mounted on the shaft |04 carrying the impression cylinder. Pinne'd tothe shaft |04 is gear |06 meshing with gearv |08 kon the shaft 30 carry- |34 of the assembly B. It will be apparent. therefore, that the rollers of the threeassemblies A, B and C will be driven by the auxiliaryl "driving `motor 90.

The mainfdrivefor the machine isf-roni'the belt |36. I Itv will beV seen fronian inspectionof the 'drawings thatftheshaft for' the pulley |38 lof this main drive carries a. gear |40 meshing with an intermediate gear.|42 in mesh with gear |44.

This gear in turndrives the impression cylinder e 2xt/plate cylinder 26 and the transfer and inking rollers of they assembly C.v The gear of the impression cylinder 24 meshes with intermediate Lgear |46 in turn driving the impression cylinder k20, plate cylinder 22 and transfer and inking rollers of assembly B. The gear |46'also meshes with a gear v|48 which, through gear |50, drives the impression cylinder I6, as well'as the plate cylinder, transfer and inking rollers of assem- 'mechanism whereby the rollersof the severalvv assemblies A,B and C may be rotated to jinsur'e that the ink is in good condition for theplatey The gear |08 in-turn" clutch being keyed to the shaft 34. I'he transfer 1 gether by gears ||6and ||8.

are ygearedtoj It will be understood that when the main drive overruns the auxiliary motor then the auxiliary motor 90 is shut off.

It will be seen from all of the foregoing that I have provided a printing machine which by reason of its adjustability is adapted for single and multi-color work. It Will be seen, furthermore, that means have been provided whereby the ink and transfer rollers are thoroughly inked initially by driving the same through an auxiliary ldrive initially, this drive eventually being overhauled by the main drive.

1t is `to-'be understood that 'Changes may be made in the details of construction and arrangement of parts hereinabove described Awithout departing from the spirit and scope ef my invention.

WhatI claim is: l. `A printing machine comprising in combination, an ink transfer lroller and` plate cylinderassembly, frames carrying the transfer roller, means for movingv theframes and roller bodily toward and away from the plate cylinder. a transfer roller shaft, 'a second shaft passing through the said transfer roller shaft, avxed llug coopernating with a cam surface on said second shaft,

and means for oscillating theA said second shaft lwhereby said lug andv cam surface `will geil'ect ybodily movement of the transfer rollerA in said frames relatively to the platecylinder.

2; A printing machine comprising in combination, an ink transfer roller and plate cylinder assembly, frames carrying the Atransfer roller,

-means for moving theframe and rollerfbodily 'toward and away from the plate cylinder, ahollow shaft supporting the transfer roller, a second shaft passing through the hollow shaft, Vacutout in the second shaft, a lug cooperating therewith, whereby upon oscillation oi the second shaftthe transfer roller is moved bodily ,toward and away from the plate cylinder. i

EDWIN E. VBURRO'UGHS.

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