US952218A - Printing-machine. - Google Patents

Description

W. SGGTT, DEGD.

yI. a. 1). J. sooTT, Enormous.

PRINTING MACHINE. APPLIOATION FILED MAY 25, 1906.

Patented Mar. 15, 1910.

'l vwemtoz iran s'IiAT-Es PATENT GFFICE.

tenersi-escom, or rie' INFIELD, NEW" JERSEY; ISABELLA scorn AND DAVID JOHN SCOTT ECUTORS OF SAID WALTER SCOTT, DECEASED.

PRINTING-MACHINE.

esame.

viance'ra hic rintin machines.

i e P g The chief-.o ject of this inventionA is the production. of suitable tripping mechanism' in connection with avplanographic printing machine inwhich the printing/ir mechanism consists of an impression cylinder, a form carrying cylinder, and a printing cylinder adapted to receive a transfer in ink-from the form carrying cylinder and print it on the sheet carried by the impression cylinder, and in which the impression `cylinder makes only one revolution to each impression.

'ther objects will appear as the specicaticn proceeds. 4

Accordingly the invention consists in the hereinafter described fea-tures of construcscl tion, combination of parts and arrangemen of elements.

ln thev accompanying drawings, which` without departing from the spirit of the invention.

:in the said drawings: Figure, 1 is a side elevation, partly in section, of a" machine,

embodying the invention. Fig. 2 is' a sectional vlew on the line V2--2 of Fig. 1. Fig; 3 is a detail view of the actuating device.

Similar characters of referenceindicate corresponding parts in the diiferent views.

l. indicates a framework of any suitable construction' for properly' mounting the parts comprisingthe machine. l

KA2 denotes an impression cylinder which,

in this instance ma kesone revolution to each impression. Preferably it is desired to deliver t-lie sheet` in front of the impression cylinder with the printed side up `to any suitable delivery as the well known drop delivery. As vvhere shown, the tapes 3 indicate the front delivery mechanism. The impression cylinder as here shown 1sprov1ded with an impressionsurface 4 and a trans- 1906. 'serial No. iaeis.

fer surface 5, and suitable means as the' transfer cylinder-6 are provided for transferringthe sheet from one surface to another. The sheet maybe fed to either the impression or transfer surface as desired, but in the construction here. followed the sheet is fed to the transfer surface and transferred to the impression surface, which latter delivers it to the delivery mechanism. In this instance, therefore, thetransfer cylinder is located in front of the impression cylinder and underneath the delivery mechspecification ofteaersrazent. Paten'ted Mar, 15, 1910,

Application :tiled May 25,

anism. Thef transfersurface is provided with the tumbler grippers 7 adapted to be closed by the pin 8 at.the'"feeding point so as to properly seize the sheet, and to be opened by the pin 8a adjacent to the'itransfer cylinder so as to release the s heet. The

impression surface is provided with the spring seated `grippers Q adapted to be opened bythe cam-10 to seize the sheet whenV it is delivered from the transfer cylinder, and again to be opened by the cam 11 when the sheet is to be delivered to the guides 12 Y adjacent to the tapes 8. The said impression surface is further provided with the usual stripper fingers 13 which place the leading" -edge of the sheet on the said guides 12. The

transfer cylinder is provided with the grippers 14 whi'chiare opened twice t'oreaclh impression alternately by the cams 15 and 16.

These camsare pivoted at 17 and are alternately brought into the plane of the grippers 4by means of the eccentric 18 connected to the .rockshaft 19'by means ofthe rod'20 and arm 21, 'and by means of the lever 22 which is connected by means of the links 23 and 24 i to the said cams.

As many form members as are required Aand as will be admitted by the capacity of the machine, may be used. Preferably the v form member Will be of the character em- "ploying an intermediate printing cylinder '25 covered with a rubber blanket 2G adapted` to receive a transfer in ink from the form Carrying cylinder 27` and adaptedto print the same on the sheet carried by the impression surface. In the present instance there is shown in addition to the form member of this character, a form carrying c vlinder 28 adapted to coact directly with thetripped position. The

they are inked twice to each impression. Preferably it is desired to avoid the necessity of moving the cylinders and 28 out of contact with the impression cylinder durmg alternate revolutions so as to prevent the ink from being transferred to the transfer surface of the impression cylinder, and the said transfer surface is therefore located below. the itch circumierence of the impression cyiinder as shown. Suitable tripping means are however employed in connection with these form cylinders, in the present instance, of the following construction: The cylinders 25, 27 and 28 are mounted in eccentric bushings 29, 30 and 31. The eccentricity of the bushing 30 is greater than that of the bushing 29 for reasons which will appear later. The arm 32 of the bushing 3() is connected to the arm 33 of the bushing 29 by means of the link 34. The bushing 29 in turn is connected to the rock-shaft' by means of the arms 36 and 37 and linkv 38. 89 denotes a second rockshaft connected to the rocksliaft by means of the arms 40 and 4l and link 42, .and also connected to the bushing 3l by means of the arms 43 and 44 and rod 45. 46 indicates a lever pivoted on the stud 47 and connected to the rockshaft 89 by means ofthe arm 48 and link 49. At its lower end, this lever 46 carries two sliding pins and 51 interlocked with each other by means of the centrally pivoted lever 52. By' means of the spring 53, the pin 50 normally protrudes from its seat. l ounted independently on the stud 47 is the lever 54, one end of which is 'provided with the roller engaging with the cam 56 making one revolution to each impression, and the other end of which is provided with the shoe 57 adapted to engage whichever of the twopins 50 and 51 is in its path; As previously stated,the pin 50 normally protrudes, and the shoe 57 engaging therewith the parts, if tripped, will be moved into the position shown in Fig. 1, that is in their un parts will then remain in this position, while the lever 54 moves idly back and forth. If now however, the pin 5l is caused to protrude, the lever 54 will move thev parts into .their tripped position by reason of the shoe 57 engaging with .the said pin 5l. It will therefore be seen that the rtripping means are normally inoperative. Various means may of course be used for rendering the tripping means effective.` In the present instance, howeveryan actuating device is illustrated which is under the control of the operator. This actuating device is of the following form. Connected to the foot treadle 58 is a rod 59 engaging-with one end of the bell' crank 60 'lhe other end of the said bell crank engages with the-pin 5l so that when the foot treadle is depressed the said pin 5i is caused to protrude.

,cylinder interposed betweeirthe two,

It will be understood that when the cylinders'25 and 27 are used, the cylinder 2'( must be moved'a greater distance than the cylinder 25 lfor the reason that in order to separate the said cylinders 25 and 27 as well as the cylinders 25 and 2, the said cylinder 27 must move a distance equal to the dis tance moved by the cylinder 25 in order. to separate the latter from the cylinder 2, plus a suthcient distance to eifect the separation of 25 and 27. It is for this reason that -the eccentricity of the bushing 30 is more pronounced than the cccentricity of the bushing 29 so that when the parts are tripped, the cylinder 27 will move faster.. than the cylinder 25, during the same period of time, and hence, itvwill move a greater distance. Furthermore, when the cylinders 25 and 27 are untripped, it-is obvious that the parts must be so arranged that the said cylinders are brought into contact before the leading end of the impression surface of the impression cylinder reaches thepoint of contact between the' rinting and impression cylinders; as the eading end of the transfer in ink must reach the said point of contact substantially at the same time the leading end of the impression surface reaches the said point of contact. 4

In connection with the cylinders 27 and 28 are provided the usual ink rolls 61 and 62 and the water rolls 63 and 64.

What is claimed is:

l. In a planographic printing machine,

the combination with an impression cylinder, of a form carrying cylinder, and a printing and means operated from a common source for tripping the printing cylinder away from the impression cylinder and the form carrying cylinder away from the printing cylinder. l

2. In a planographic printing machine, the combination with an impression cylinder, of a formcarrying cylinder, and a printing cylinder interposed between tlie'two, means for tripping the printing cylinder away fronithe impression cylinder and the form carrylng cylinder away from the print-v ing cylinder, normally inoperative, and an actuating device for rendering the tripping means operative.

3. ln a planographic printing machine, the combination with an impression cylinder making one revolutionto each impression, a form carrying cylinder making a plurality of revolutions to each impression, and a printing cylinder also inaking a plurality of revolutions to each impression and interposed between the form carrying and impression cylinders, and means for tripping the printing cylinder away from the irripression cylinder and the form carrying cylinder away from the print-ing cylinder.

4. In a planographic prmting machine, -i

the combination with an impression cylinder making one revolution 4to each impression,

a form carrying cylinder making a` plurality inoperativewi-nd an actuating device for rendering the said tripping means operative.

In a planograpliic printing machine, the combination with an impression cylindei' making one revolution to each impression, an impression surface on the said impression cylinder, a transfer surface also on th'e said impression cylinder, means for transferring the sheet from one surface to another, a form carryingcylinder making a plurality of revolutions ,to each impression, and a printing cylinder interposed between the impression and form carrying cylinders and alsomaking a plurality of revolutions to each impression adapted toreceive a transfer in ink from the form carrying cylinder twice to each impression andI to printf the said transfer inink on the sheerY carried bythe impression surface, and means for tripping the printing cylinder with vrelation to the impression cylinder and the form carrying cylinder with relation to the printing cylinder.

.6. ln a planographie printing machine, the combination with an impression cylinder making one revolution to each impression, an impression surface on the said impression cylinder, a transfer surface also on the said impression cylinder, means for transferring the sheet from one surface to another, at form carrying cylinder making a ,plurality of revolutions to each impression,

and /a printing cylinder interposed between lthe impression and form carrying cylinders fand alsomaking a plurality ofrevolutions to each impression adapted to .receive a transfer in ink` from the form carrying cylinder twice 'to each impression and to print the said; transfer in ink on the sheet carried by tlieiinipression surface, means for trip.-

` ping the prin'ting cylinder with relation to`l the impression cylinder andthe form carrying-cylinder with relation to the printing cylinder, normally inoperative, and an' actuating device for rendering the said trippiln'g means operative 'E'. ln a planographic printing' machine, the combination with an impression -cylinder. making one revolution to each impression, an impression surface on the said impression cylinder, a transfer surface onthe said impression cylinder below the le'vel of the pitch 'circumference of the said impression -icylinden VVmeans. for; tra'iisferrmg1 *the sheet from one surface to the other, a form carrying cylinder making a plurality of revolutions to each impression, anda printing cylinder interposed between the impression and form carrying cylinders and also making aplurality of revolutions to each impression adapted to receive a transfernin ink from the form carrying cylinder twice to each impressionv and to print the said transfer in ink on'the sheet carried by the impression surface, and means for tripping the printing cylinder with relation to the impression surface, and the form carrying pylinder with relation to the printing cylin er.

8. In a planographic printing machine,

the combination with 'an impression cylinder making one revolution to each impression, an impression surface on the said impression cylinder, a transfer surface on the said im'- pression cylinder below the level of the pitch. circumference of the Asaid impression cylinder, means for transferring the sheet from one surface to the other, a form carrying cylinder making a plurality of revolutions to each impression and a printing cylinder interposed between the impression and form carrying cylinders, and also making a plurality of revolutions to each impression `adapted to receive a transfer in ink from the form carrying cylinder twice to each impression and to print the said transfer in ink on -der moves a greater distance than the printing cylinder.

10, Ina-planographic printing machine, 4

the combination with aninipression cylinder, a form carrying cylinder, and a printing cylinder interposed between the two, of. means for tripping the printii'ig cylinder with relation to the impression cylinderand thefoiam carrying cylinder withl relation to the printing cylinder arranged and constructed so that the form carrying cylinder `moves a greater distancevand faster than the printing cylinder.A 11. In a'planographic pri izo nting ,macliine,

the combination with an impression cylinder, a forni carrying cylinder', and 'a print- "cylinder interposed between the two, of

of revolutions to each impression,

ineens for tripping` tlie printing cylinder with relation to the impression cylinder and the form carrying cylinder' with relation to the printing cylinder arranged und constructed so that tlie foin carrying cylinder moves e greater' distance and 'fester then the printing cylinder, normally inoperative, and an actuating device for rendering tlie tripping means operative.

l2. ln a plnnograpliic printing machine, the combination with an impression cylinder making one revolution to each impression, a forni carrying cylinder melting a plurality of revolutions to each impression, and, a printing cylinder interposed between the two also making a plurality of revolutions to each impression, of ineens ,tor-tripping the printing cylinder with relation to the impression cylinder and the torni carrying cylinder With relation to the printing cylinder arranged sind constructed so that the form carrying cylinder' moves o greater distance and, faster than tbc printing cylinder. 13. ln o plsinograpliic printing nnichine, the combination with an impression cylinder making one revolution to erich impression, `a form carrying cylinder milking' :i plnrnlity .and :1 printing cylinder interposed between the two also making :i plurality of revolutions to each impression, of' means for tripping the printing cylinder' with relation to the eof i normally inope impression cylinder und the 'forni carrying cylinder with relation to the printing cylinder arranged and constructed so trat the form carrying cylinder moves n greater distance ond faster than the printing cylinder,

ativekand an actuating device for rendering the tripping m en ns opere.,- tive.v y f 14. In n planogropbic printing machine,

the combination with an impression cyliinler having an impression surface, a forni curryilng cylinder, and a printing cylinder interposed between tlie two, of means for tripping and untripping the printing cylinder with relation to the impression cylinder sind the 4formcnrrying cylinder with relation to the printing cylinder arranged end constructed so that the iforin'cnrrying:intl print ing cylinders are brought into Contact with each other before the lending end ot the ini.- pression snrface 4reaches the point oit contact between the printing and impression cylinders 15. In a planograpliic printing nnicliine, the combination With an impression cylinder having an impression surface, a iorin'cnrry ing cylinder, und printing cylinder interposed between the two, p-

of ineens 4l'or i'. .ping and unt-ripping the prniting cylinder 5 with relation lo the .impression cylinder end the form carrying cylinder with relntion to .'tlie printing cylinder arranged' and constructed so that tile "orin carrying end printcylinder benne; moved Way from ing cylinders ore brought into Contact with each other before the lending end oi' the impression snrieee reaches the point oit contact between tbe printing and impression cylinders, normallyy inoperative, and en nctnating device for rendering the seid tripping ineens operative.

lo. ,ln a pltniogrspliic printing mncliine, the combination with en impression cylinder ,making one .revolution to eecli impression sind provided with :in impression surface, a toi-in carrying cylinder making plurality oi revolutions to each impression, a printing cylinder interposed between the impression :ind 'form carrying cylinders melting else a plurality of revolutions to encli impression and ndapteijl 'to receive s transfer in inl; troni the 'form carrying cylinder twice to escli in'ipression und to print the said tran.- iler in inl-.i on the sheet carried by tlie impre sion surface, of ineens for tripping and nntripping the printing cylinder with rela-- tion to the impression cylinder and tlie form carrying cylinder with relation to the printing cylinder arranged ond constructed so 'that the torni carrying and printing cylinders are brought into Contact i 'it-li ezicb other before the lef `ng end of the impression snrlsce renclies the pointoii contact between. 'toe printing and impression cylinders.

l?, ln o plenogropliic printing machine, the combination with on impression cylinder melting one revolution to escb impression forni carrying cylinder so tlnit the torni ving end printing cylinders nre bronght into -oontnct 'with cecli other before 'the leerling end of the impression surface resclies t.ie point of Contact between the printing and impression cylinders. nornnillyl inoperetive, and an notant ing device tor rendering the seid tripping menne operative.

'18. ln n printing ninicliine, tlie combinetion with an impression, cylinder, of s form carrying cylinder, wprinting cylinder interposed be. yn the vivo, ineens for moving 'the printing cylinder away iiroin the impression cyli. der, and means for moving the torni carrying cylinder sway 'troni tlie printi cylinder to allow of the printing tbe iniission surface, 'n y ion with relation to tliev printing cylinder arranged and constructed pression cylinder, the said tripping means receiving motion from a common source.

19. ln a printing machine, the combination with an impression cylinder and a form cylinder, of a printing cylinder interposed between the form and impression cylinders, and means comprising eccentric bearings .and operating means-therefor for shitting a printing cylinder in one direction away nom the impression cylinder, and for shitting the term cylinder in another direction away from the printing cylinder.

20. ln a printing machine, thel combination with an impression cylinder and a form cylinder, of a print-ing cylinder interposed hetween the form and impression cylinders, and means comprising eccentric hearings and operating means therefor vtor shifting the printing cylinder in one 'direction away trom the impression cylinder, and for shift-.

ing the form cylinder in another direction away from 'the printing cylinder', the form cylinder havingfa lgreater movement than the printing cylinder. v

ln a planographic printing machine, the combination with an impression cylinder, of a form carrying cylinder and a printing cylinder interposed between Ithe two, ot means for tripping the printing cylinder with relation to the impression cylinder, and the form carryin)` cylinder' with relation to the printing cy inder, arranged and constructed so that the form carrying printing cylinders, and means for operating said journal bearings to trip the form cylinder away from the printing cylinder, and the printing` cylinder away from the impression cylinder.

23. In a printing machine, the combination with an impression cylinder and a form cylinder, of a printing cylinder interposed hetwecn the form and impression cylinders, eccentric journal bearings for the form cylinder and printing cylinder, and means foroperating said journal bearings to trip the form cylinder in one direction away from the printing cylinder, and to trip theprinting cylinder in a different direction away from the impression cylinder.

2l. In a printing machine` the combination with an impression cylinder and a form cylinder, of a printing cylinder'interposed between the form and impression cylinders, eccentric bearings for the form and printing cylinders, and means for actuating said eccentric. bearings to tripy 4the form and printing cylinders at ditt1 rent rates of speed.

25. In a printing machine, the combination with an impression cylinderfind a form cylinder7 of a printing cylinder. interposed between the form and impression cylinders, eccentric bearings for the form and printing cylinders, and means operated from a common source of power for tripping the form ,cylinder away from the printing cylinder, and the printing cylinder away from the impression cylinder.

Signed at New York city this 14 day of 75 May 1906.

' lVA L'lER SCOTT.

llVitnesses:

AXEL V. Brennen,

IVAN E. Ai. KoNlosERo.

Images