US 1025258 A
Description (OCR text may contain errors)
J. L. FIRM.
'PRINTING PRESS. APPLICATION FILED 1111.3, 1911.
" Patented May '7, 1912.
J. L. FIRM. PRINTING PRESS.
APPLIOATION FILED 111113, 1911.
Panama May 7, 1912 2 SHEETS-SHEET 2.
' ifa 2122 y ruin GEPE- lh. Fil?, @FEE-WWW, ELLINOIS,'ASSGNR TU THE. GOSS PRINTING PRESS llll'lliilltlllll', 0l? GlillGAGrO, ILLNQIS, il. CORPEATON OF ILLINOIS.
Specification of Letters Patent.
rality of lcolors may be odset or transferred Matane operation.
A further object is the productionoi' a .printing mechanism as mentioned which will be of durable construction, and of great eciency in operation. y
Other objects will appear hereinafter. 'With these objects in view my invention consists in the combinations and arrange- ',ments of parts hereinafter described and claimed. v
My invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in ,.wloicli-A Figure l. is a side elevation of a printing press embodying the invention, Fig. 2 is a plan view or a cam member included in the construction, and Fig. 3 is a diagrammatic view of the device in longitudinal section. i The preferred formel? my invention as 'illustrated in the drawings comprises a supporting body or frame 'l in which is rotatably mounted a transversely extending shaft 2. Fixed to the shaft 2 is a form cylinder 3 upon which is arranged a plurality il) of forms or plates, four being shown equally spaced thereon, the same being designated as i, fr', 4L. and if".
Arranged about the form cylinder 3 are y preferably equally spaced inking devices or "l5 mechanisms 5, 5', 5" and 5"', the same 1 being of any well known or preferred con` struction. Said inking mechanisms are adapted to contact and apply ink. to the plates or forms carried by said cylinder, the
il same being however, so mounted'as to be adapted to'be moved into and out of engagement with vsaid cylinder so that each will :Contact with a portion of the periphery of thev form cylinder, that is, with one of the plates or forms carried thereby diderent from that engaged by the others, the inking mechanism 5 being arranged for engagement with the plate 4t; the mechanism 5' with the plate 4'; the mechanism 5" with the plate 4;", and the mechanism 5"' with the plate 45".' lWith this arrangement then, different colors or inks being contained'in the different inking mechanisms, different colors will obviously be correspondingly applied to the dillierent forms or plates upon the, cylinder 3; so that if yellow ink is contained in the mechanism 5, yellow ink and only this color of ink will be applied to the plate 4, and if `blue ink is contained in the mechanism 5', the blue ink and only blue ink will be applied to the plate Il', and so on.
The mechanism for edecting the movement of the inking mechanisms into and out of contact with the form cylinder upon rotation of the latter, is substantially the same as that employed in my Letters Patent #677,735 granted July 2, 1901, see particularly Fig. 2. Briely, however, the mechaf,
nism whereby such movement is secured is 'thus:--'l`he did'erent inking mechanisms 5,
5', 5" and 5"' are mounted in frames 6, 6', 6" and 6', respectively, which frames are slidably mounted upon the body frame 1 for movement in a direction radial with respect to the form cylinder. `lntermittent outward movement of said mechanisms is effected by means of bell crank levers 7 which are fulcrumed at 7' in the frame l, the outer ends of said levers being provided with rollers 8 which engage against the undersides of said inking mechanism carrier frames so that when the inner ends of said levers are rocked outwardly said frames will be correspondingly moved outwardly bythe rollers 8 engaging the same, and when said inner ends of said bell crank levers are moved inwardly, said carrier-frames will be permitted to be moved correspondingly inwardly to effect the engagement of the inking mechanisms with the form cylinder. The `inner extremities of the inner arms or ends of the bell crank levers 'Z' cooperating with each of the carrier-frames are pivotally connected, rollers 9 being provided at the junctures ci said lever extremities. The rollers 9 engage against the peripheries of cams 10 which are ixed Aupon the extremities of the shal`t`2, the cams l0 at each extremity of said shaft being preferably formedintegral as clearly shown in Fig. 2. Each of the cams 10 is so formed that during each rotation thereof, the roller 9 co-acting therewith will during the greater part of the rotation be held at its outer terminal of movement, -the same being however, permitted to move inwardly during a small por- Vtion of such rotation, as will be obvious by reference to Fig. 1.v The arrangement is such, that when the'roller 9 is at its outer terminal of movement the inking mechanism coperating therewith will .be held in inoperative position, and when said roller is at its inner terminal of movement said mechanism will .be permitted to be moved inwardly bythe tension spring 11 coperating therewith to operative position; the cams 10 being so arranged and designedl that each of the inking mechanisms 'will remain in operative position for 'a period of time only sucient to effect the application of ink to the plate or form coperating. therewith, as
Rotatably mounted in the frame 1 tangentially with the cylinder 3, is an oiiset cylinder 12, the latter being preferably provided with a rubber coat 13 which `facilitates the ready removal or offsetting of the ink from said cylinder when the device is in operation. Said c linder 12 remains constantly in contact withI the periphery of the cylinder 3, said cylinders 3 and 12 being so proportioned that the periphery of the former is to theperiphery of the latter directly as the 'number of inking mechanisms coperating withsaid form cylinder; so that in the construction illustrated, wherein four inking mechanisms are employed, the periphery of the cylinder 12 will be one-fourth that ot' the cylinder 3 and so that, with each completerotation of the cylinder 3, the cylinder 12 will. be moved through four' rotations.
' With' this construction, then, it will be observed that-each 'of the forms or plates carried by the cylinder 3 will contact the periphery of the cylinder l2 at exactly the same position, the'ink carried by said forms or plates being applied to said oiset cylinder one `directly upon the other. Rotatably Vmounted in the frame 1 adjacent the opposite side of the cylinder 12 is the impression cylinder 14 which is adapted once every fourth revolution of said offset cylinder to be brought into contact with the latter. Arranged below the impression cylinder 14 is -an ordinary form cylinder 15 and arranged for coperation therewith an impression cylinder 16, the cylinder 14 being adapted to appl a single color ink to the opposite side of t ev web to that upon which the color inks are applied. The cylinders 14 and 16 carry gears 17 and 18 respectively, which mesh with each other thereby establishing connection between the former. The extremities of the shaft of the cylinder 14 are journaled at the vertices of bell'crank levers 19 which are fulcrumcd at 2() upon the opposite extremities o'f the shaft of the cylinder 16. levers 19 are provided with rollers 21 which engage cam grooves 22 formed in theoutcr surfaces oi the outermost ot" the cam members 10. The arrangement is such, as will be observed, that said cam grooves will serve to maintain the cylinder 14 out of contact with the cylinder 12 during three rotations of the latter, the same being forced into contact therewith only every i'onrth rotation or once every complete rotation ot the cylinder 3, as above mentioned. Arranged in the periphery of the cylinder 14 are gripping devices 23 which are adapted. to engage the extremity of thc web cut 24 fed thereto and carry the same substantially half Way around said cylinder or until said extremity ,is engaged by gripping devices 2B arranged in Ithe periphery of the cylinder 16, said gripping devices 23 being adapted to carry said extremity to engagement with the )criphery. of the form cylinder 15. ping devices 23 and 23 may be of any well, known type, gripping devices ot' the construction shown and described in my Letters Patent #366,388 granted July 12th, 1887, being preferably employed.
Mounted at one extremity of the frame 1 is the web roll 25, the web in unwinding therefrom passing over guide rollers 26 and thence between superimposed cutting cylinders 27 and 28, said cylinders 27 and 28 being operatively connected by meshing gears 29 and 30 carried respectively thereby. The gear 29 is operatively connected through The opposite extremities ot the,
The gripa train of gears 31 with the gear 17 carried A by the impression cylinder 14. As above mentioned, the cylinder 14, when the maV chinois in operation, is oscillated slightly, such oscillation, being so limited however, that when said cylinder is moved toward the oii'set cylinder`12, the gear 17 carried thereby will not be moved out of mesh with the adjacent gear of the train 31. From the `cylinders 27 and 28, the cuts of the web after the latter has been severed by the cutting devices carried by the cylinders 27 and 28 are guided through rollers 32 for engagement by the gripping devices 23 carried by the impression cylinder 14, whence the same arecarried and acted upon in the manner above described. Strippers 33 are preferably employed at the rollers 32 adjacentl the cylinder 28, in order to eiliect the stripping of the web from said cylinder when the same is rotated. The cutting devices carried by the cylinders 27 and 28 are of the ordinary design, that shown and described in my Letters Patent #671,993 grantedl April 16, 1901, being adapted to be employed if desired. As illustrated in the drawino's. the cutting device comprises essentially t e serrated blade 34 which is carried by the cylinder 28 and the longitudinally extending recess which is formed in the peripherymof the cylinder 27, said blade `and recess ing so positioned as to be adapted to register with each other when said cylinders are' rotated.
Cylinders 14:, 27 and 28 are driven intermittently and the speed at which they are driven and the gearing connecting them'is sachv that a sheet of proper length will be .delivered to- .cylinders 11i and 16 at the proper time as will be readily understood by those skilled in the art.v Any suitable means may be employed for this purpose and no claim is made herein to any specific means for cutting and feeding the paper sheets to cylinders 'la and i6.
With a construction then as above described-it will be seen that the various colors of inks will be first applied to the plates carried by the 'cylinder 3, the same being transferred 'from said plates to the periphery of the oii'set cylinder l2, one coat directly upon the other. After the four coats have been applied to said cylinder l2, the
cylinder let carrying the web thereon will be rocked into contact with said oset cylinder, whereupon the four coats of ink carried by the latter will be transferred or o@ set at one operation to the, adjacent surface '.oil the web carried .by said impression cyl-3 ln order to facilitate the ready re' inder. moval or oil-setting of the inlz; from the periphery of the olset cylinder., a water applying mechanism il is preferably arraned for engagement with said odset cylinder, said water applying mechanism being 'so arranged and connected that a coat or' '4inwater will be applied the periphery ofA said odset cylinder once every fourth rotation thereof or during the interim between.
complishing thispnrpose comprising a reciprocating' rod carrying a cam roller 43 operating in slot 22, the other end or" rod 4Q being connected with one armv of a bell crank lever dei, the other arm of said bell cranlr being connected by means oa link with mechanism 4l so as to operate said mechanism at the proper time. rilfhe impression cylinder la andthe various cylinders and rollers operatively. connected therewith will be intermittently driven, that is, the will be operated. only when if cylinder is. rocked into vals "of `such actuation.
water applying with said otfset. cylinder, substantially as inder, substantially as described.
contact with the cylinder 12, the same rfcmaining inert between the'. successive inter- By 'the construction as set'forth it will be seen that inoperation, the primary colors will be first applied by the form cylindery to the oii'set cylinder and that the sec- 'i ondary colors will'be applied thereover; so
that, when all of the colors are odset from theV offset'cylinder onto the sheet, the sec# ondary colors will be underneath and the .primary colors thereover' or on top. "lt will e observed that the order o removing the colors from the form cylinderys 'a complete reversal of the order of removing 'the same now universally in vogue` The construction as set forth-.'ia-diirable and economical,and`tl1e sameis ci high elliciency in operation..
While I 'have illustrated and described the preferred construction for carrying my invention into effect this is capableof varin ation or modification without departing from the spirit of the invention. l, there-l tore, desire to 'avail mysel ot such varia tions and modiications as come within the scope of the appended claims.
Having described' my invention what l claim. as new and desire to secure by Letters '1. ln a printing press, the combination of a form cylinder; inking. mechanism arranged f'or said form cylinder; an oisetcyl- .inder arranged to contact with said cylinder; and an impression cylinder and a mechanism coperating described.
2. In a printing press, the combination of 'a form cylinder; inking mechanisms arranged for coperation with said cylinder; means adapted upon rotation of said cylinlder to effect the movement of each of said inkingmechanism into and outof-Acontact with a portion of 4the periphery vof said cylinder diiferent from that engaged by the other inking mechanisms an offset cylinder of less diameter than said form cylinder impression cylinder anda water-.applying mechanism. cooperating with said foil'set cyl- 3. ln a printing press, the combination of a form cylinder; inking mechanisms arranged for coperation.withl said cylinder;
rmeans adapted upon rotation' o said cylinvand arranged to contact the latteriand an der to eectthe movement of each -of-said,
inkingmechanisms into andoutof contact with a portion of the periphery of said cylinder different from that engaged by the other inking mechanisms; an odset cylinder adapted to contact with said form cylinder, the periphery ofsaid form cylinder being to' the periphery of said oiiset cylinder directly as the lnumber of inking mechanisms ooperating With said form cylinder; and an impression cylinder and a water appiying mechanism coperating with seid ofse cylinder, substantially as deserihe.
4. In a printing press, the combination of a. form cylinder; inking mechanisms an 'ranged for cooperation with scid cylinder;
means adapted upon rotation `o?? said cylinder yefect the movementl of each of said inkingmechanisms into end out of Contact with@l portion of 'the periphery of said cylinder different from that en'egeci by the other inkingmechanisms; an oi'set cylinder adapted tocontact with said form cylinder, the periphery of said form cyiinder being to the periphery of seid oise'b cylinder di rectly as he number of inking mechanisms cooperating With said form cylinder; anci ran impression cylinder sind n Wader :rppiv-- ing mechanism coperzimg wiih scifi offset cylinder, the duration oi i'he iniervuis of: non-Contact being to he durziiion of ihe in tcrmis of Contact of said. impression cylinder and smid Water :ippiying mechanism with seid oliset: Cylinder directly :is .hc periphery oi" .said form cylinder is io the periphery of said offset' cylinder, snhsinntieily :is described.
in testimony wherof I have signed my name 'to this specification in the presence of two subscribing witnesses.
JOSEPH L. FIRM.
Vifiiiesscs z ARTHUR A. LSQN. JOSHUA R. H. irrrs.