US1025257A - Printing-press. - Google Patents

Description

J. L. FIRM.

PRINTING PRESS.

APPLIUATION FILED JAN.3, 1911. 1,025,257. Patented May 7, 1912 2 SHEBTS-SHBET- l.

J. L. FIRM.

, PRINTING PRESS.

APPLICATION NLBD Jmm 1911.

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g Uiurnn sTA'rns JOSEP L. FIRTM, OF BERWYN, ILLINOIS, COMPANY, F CHICAGO, ILLINOIS, A CORPORATION 0F ILLNOIS.

PATENroFrIoE.

AssmNon To THE Gossrnrnzrrne rBEssl.

PRINTING-Panes.

To all whomy it may concern:

Be it known that I, JOSEPH L. FIRM, a citizen of the United States, and a resident of the city of Berwyn, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Printing- Presses, of which the following is a speciflcation. A

This invention relates to improvements in printing presses and more specifically to lthat class thereof designed for`multi-color printing. I 4

The object of this inventlon is the pro#v duction of a printing press of the character mentioned4 which will be so designed that the plates or forms carried by the form cylinders included in the construction may be readily and quickly removed therefrom or` the same may be readily accessible for clean,v ing Without necessitating disturbance of the inking cylinders. Y

A further object is the provision of a printing press as mentioned by means of -which a plurality of colors may be offset or ap liedto the web at one operation; andA a fiirther' object is the provision of a press which will be of economical construction and efficient in operation.

Other objects will appear hereinafter.

With these objects in view my invention consists in the combinations and arrangements of parts hereinafter described and. claimed. 'f

My invention will be best understood by reference toVv the accompanying drawin forming a part of this specification and 1n whichl Figure 1 is a side elevation of a printing press embodying ,the inventiomand -F ig. 2 is a diagrammatic viewfthereof in longitudinal Sectlon. l

The preferred form of this invention as illustrated inthe drawings com rises a supporting frame 1 in which is rota ably mounted vsubstantially centrally therein al transversely extending shaft 2. Mounted' upon i said shaft, the same bein-g lxedthereto isa rform, cylinder 3 upon, which are' arranged forms or plates 4, 4, 41'-, 4 secured Ithereto in Vthe ordinary `manner, each set of said forms or platesbeing adapted to receive a color different from that received by the others, and each color is plied bythe ink-v ing cylinders about tu be Ifescribed.

Rotat-ably mounted in the frame 1 at onev Specification of Letters Patent. I

Application led January 3, 1911.

Patented May 7, 1912.

Serial N ot 600,425.

' ing members 6 adjacent the peripheries thereof is a plurality of spaced inking cylinders divided preferably into four sets each set comprising four cylinders, lsaid cylinders being designated as 7, 7 7, 7. inking cylinders in each set contact with -inlr distributing cylinders 8 which have their extremities also rotatably mounted in the supporting members 6,' said cylinders S-bewhen, the device is in operation in addition to being rotated to be reciprocated longitudinally in order to effect a more thorough tacting therewith. Fixed to one end of the connected with asimilar gear 10 fixed to the shaft 5 by means of aplvnion 11. The arrangement is such that when in operation, the cylinder 3 will rotaten the same direction as that in which the inking cylinders trevolve so that theircontactling surfaces will pass in oppositev directions. Said.y inking same, are revolved as .above mentioned,`they will contact the periphery of the cylinder 3, each set thereof contacting a portion of the peripheryofsaid cylinder not contacted by th'e other "sets; the cylinders 7 being arrangedtoj contact only With the plates or forms/lathe cylinder 7 with.` the forms or plates 4', the cylinders 7" with the forms .or plates 4, and the cylinders 7 with the forms orv plates 4. shaft ".5 ,are ink fountains 12,13, 14 and 15, the extremities thereof beingA xed'to the frame lfso that when the device is in operranged in said inkl fountains are fountain said ink fountains and fulcrumed at 17 are bell-crank levers 18, said levers carrying rollers 19, 1,9', 19, and 19 atv their outer extremities, said rollers 19 being adapted to contact with the ink distributing cylinders Sand the .fountain rollers 16 in order to etectthe transfer of ink from the latter to Adjacent" ing preferably ,so arranged as to be adapted and uniform distribution of the ink delivu ered thereto upon the inking cylinders con- Arranged about the rollers 16. Arranged at the .extremities of.'

cylinder 3 is a gear 9 which is operatively A cylinders zare so arranged that when the 10o ations'aid fountains remain stationary. Ar-

. said distributing cylinders. The arrangey inking cylinders notl contacted by the others,

ment is such, however, that each of said movable fountain rollers will be adapted, when the device is in operation, to contact the ink distributing cylinders S of a set of the rollerl19 being adapted to Contact and deliver ink only to the distributingcylinders 8 coperating with the inking cylinders 7, the roller 19 being adapted to contact only with the ink distributing cylinders 8 cooperating'with the inling cylinders 7', the fountain roller 19 with the ink distributing cylinders S coperating with the inking cylinders 7, and the fountain roller 19 only with the ink distributing cylinders 8 cooperating with the inking cylinders 7. rPhe rocking or oscillation of said movable inking rollers to effect this contact with the ink dist-ributing cylinders 8 is effected' by means of a series of cams 2l which coperate with the rollers 20 of the vlevers 18, this construction being illustrated and described in my co-pending application, Serial No. 600,424 filed January 3rd, 1911.- Hence further detailed description here is-not necessary sincereference to said application may be made'if such detaileddescription is'desired. With the arrangement above described then it. will lbe seen. that if dide'rent colors are contained 'in' the various fountains 12, 13, 14, and 15 differentcolors Will correspondingly be applied to the plates or forms 4, 4', 4, and 4 respectively upon the form cylinder 3.

Rotatably mounted in the frame l at the 4opposite side of the' formcylinder` 3 is an oil'set cylinder 22, the same being preferably provided with a rubber coat oreovering 28 ,constantcontact With the formlcyli'nder 3, the

inporder to facilitate the offsetting or transferring of the inl applied thereto to the'web which is brought in contact with the periphery thereof. ,The offset cylinder 22 remains in periphery of said form cylinder being to the periphery of said offset cyllnder directly as the number of sets of plates carried by sald I form cylinder-or the number of sets of inking cylinders coperating therewith; so that in the present case the periphery of the cylinder 22 will be one fourth 'that of the cylinder 3. With this arrangement it will be seen that the different colors carried by the sets of forms lor plates as applied the-reto by the inlting cylinders will be applied upon the` periphery of said offset cylinder one directly upon the other.

. llotatably and revolubly mounted in the -frame 1 adjacent the offset cylinder 22 is an impression cylinder 24,' and arranged below said impression cylinder 24 is'a second impression cylinder 25 which coperates with 'a` form cylinderilt, the latter being adapted to apply a single color to the opposite side of the web to that to whiclnthe multi-colors 4those`skilled in the art. Any suitable means are applied. The web 27 fed to the impression cylinder' 24 is engagedby gripping dcviccs 28 Iofany approved construction, gripping devices as shown and described in my Letters Patent, No. 366,388 granted July 12th, 1887 being preferably.employed. Said gripping -devices 2S are adapted to carry the extremity-of' the web engaged thereby to thc point of ta'ngeney with the cylinder 25 whereupon the same releases said extremity of said web to permit of the same being ranged in the 1mi-iplnifv olf said cylinder 25. The cylinders 2l and 2.3 a re operatively connected by meshingl gra-ars 2S) and 3() which are secured respeetiveiv thereto so that theA same, when operating. will rotate at the same peripheral speed. l`lie extremities ot' the shaft of the cylinder 2l are mounted in bell crank levers Ell at the vertices thereof. said levers 31 being arrangr JA at the opposite sides` of the frame l, the lower extremities thereof being fulcrumed to the extremities of the shaft of thecyliinler 25. The opposite extremities 0f said .levers 3l are provided with rollers 32 which engage cam grooves 33 formed in the outer sides of eam members 34 fixed to the respective extremities of the shaft 2. The cam grooves 38 are so designed that upon each rotation of the cylinder 3, the impression cylinder 24 will be rocked into engagement with the oitset cylinder 22 remaining in engagement therewith through one complete rotation thereof. lllith this arrangement then it will be seen that the cylinder 24 will be rocked into engagement with the cylinder 22 once in every four rota- -tions of the latter, in other words after four coats of color have been' applied to Said Otfset cylinder the web carried by the cylinder 24 will be brought-*into Contact with said offset cylinder effecting the transferring'or oset with the four colorsv carried by. said offset cylinderl is one rotation thereof or in Aone operation.

Cylinders 24, 25 and 2G are driven'inter- '.fmittentl-y and a sheet of paperc'ut from web 2"?l is delivered to cylinders 24 and 25 at the proper time as will be readily understood by ,may beemployed for this purpose and no l,claim is .made herein to any specific means for cutting and feeding the paper sheets to cylinders 24 and 25;

, In operation, the impression cylinder 24 together with the parts operatively connected therewith will be intermittently operated, the duration of the period of operation of said cylindervand parts connected therewith being to the duraticn'of the period of inoperativeness directly as the periphery of the cylinder 22 is to the periphery of the cylinder 3, in other words, the cylinder.- 24 will be turned through one complete rotation every fourth rotation of the cylinder 22,

the period of operation occurring when the cylinder- 24 is rocked into contact With'said cylinder 22 by means of the lever 3l as prevlously described. Hence, in operation, after=`thefour colors have been applied to the olset'lcylinder 22 as above described, the

webwill be pressed into engagement there. with to effect tirey osetting or 'transferring of the colors frm the cylinder 22 in one operation. In order to'facilitate the transfer ot' the color or ink from the cylinder 22 to the web, a Water.' applying mechanism 50 is preferably provide Said Water' applying mechanism is so -arranged... that YonceY T'brought into contact with said cylinder the A inkor color carried thereby Will be readily n' and completely removed.

Any suitable means may be employed for operating Water applying mechanism 50. The construction shownv comprises a reciproeating rod 52 carrying ,at one end a cant roller 53 operating in cam slot 33 and having its other end connected with one arm 0f a bell crank lever 54. The other arm of bell crank 54 is connected by means of a link 55 Witha lever 56 arranged to operate the Water applying mechanism'lO at the proper time.

Arranged adjacent the form cylinder 3 is a Water applying mechanism 51, said mechanism being provided in order topadapt t-he machine for employment in lithograph ing as will be readily understood.

With a printing press of a construction as above setforth the inking rollers being separated from or positioned laterally of the form cylinder the plates carried by the latter may be readily andA quickly removed or replaced, or cleaned if' desiredI Without necessitating the disturbance of said inking rollers such as is now necessary in machines now generally in use in order that access to the plates arranged upon the form roller therein may be gained. By the introduction of an oiiset cylinder a plurality of colors may be applied to the web at a single operation. Further, the press is durable and' economical, Aand the same is not susceptible to readily becoming inoperatire. By.the construction as set forth it will be seen that in operation the primary colors will be irst applied by the form cylinder to the olisetcylinder and that the secondary colors will be applied thereover, so that, Whenl allot the colors are oi'set on to the web, the sec- '11.1In a a formcy inder; a

tatably and revolubly mounted inkin ondarycolors will be underneath andthe primary colors thereover or on top, thusl reversing the order now universally in vogue of removing the colors from the form cylinder. Y

While' I have shown what I deem to be the preferred form of my invention I do not Wish to be limited thereto as there might be .various changes made in the details of conscribed Without departing-from the spirit struction and the arrangements of parts de-75 of theinyention as comprehended within the scopje of the4 appended claims.

'Having descrb d my invention what .I

claim as' new and desire to secure by Letters Patent is: L y j rinting press, thel combination of lurality of sets Joli ro,n tatably vandrevolub y nountedinkin cylinders adapted each tocontact a portion of the periphery of said form cylinder not contacted .b the, others;an impression 'c linlder; andv an oiest cylinder interpose between 's'aid impression cylinderf and 'said form cylinder, substantially as described.'u

2.' In a p "a f orm. cy iii-der; a. lurality .of 'setsof rotatably andv revolub y mounted inkin cylinders, each set of .-said cylinders eing adapted to contact a portion of the periphery 'of said formcylinder not contacted by the others; an impression cylinder; andan oliset cylinderinter'posed between said impression cylinder and said form cylinder, the periphery of said form cylinder being to the periphery of said offset cylinder directly as the number of sets of inking cylinders coperating with said form cylinder, substantially as described.

3. In a printingpress, the combination of a form cylinder; a plurality of sets of ri- C inders, each set of said cylinders sigg adapted to contact a portion of theperiphery of said form cylinder not contacted by the others; an offset cylinder contacting said form cylinder,.the periphery of said form cylinder being to the periphery of said 0E- rinting press, ,the combination of set cylinder directly as the number of sets of inking cylinders coperating with said form cylinder; and an impression cylinder adapted to intermittently contact said offset cylinder, substantially as described.

4. In a printing press, the combination of a form cylinder; a plurality of sets offrotatably and revolubly mounted inking cylinders, each 'set of said cylinders being adapted to contact a portion of the peripheryv of said form cylinder notcontacted by the others; an offset cylinder contacting said form cylinder, the periphery of said form ,cylinder being to the periphery of said otlset cylinder directlyA as the number of sets of inking cylinders coperating with said form cylinder; and an impression cylinder non-contact being to the duration of theA intervals of Contact of saidv impression cylinder with said offset cylinder directly as the periphery 'of said forni cylinder is to the periphery of said offsetcylinder, substantially as described.

y 5. In a printing press, the combination of a rotatable form cylinder; a plurality of sets of rotatably and revolubly mounted inking cylinders, each set of said cylinders being adapted to contact a portion of the periphery of said form cylinder not contacted by the others; ink fountains; ductor rollers adapted to transfer ink from said fountain to said inking 'cylinders; means whereby each of said ductor rollers will, upon revolution of said. inl ing,cylinders, Contact a set of inking cylinders not contacted by the others; an ofsetcylinder contacting said form cylinder', the periphery of said form 'cylinder being tothe periphery of said 0H- .setcylinder directly as the numberl of sets Iof inking cylinders coperating with said torm cylinders; and an impression cylinder adapted to intermittently contact said offset cylinder, substantiallyas described.

6. In a printing press the combination of a rotatable form cylinder a plurality of rotatably and revolubly mounted inki-ng cylinders 'arranged in cylindrical .conformation laterally of and parallel with said forni cylinder, said inking cylinders being adapted to successively Contact with one set of said forni cylinders with the latter is r0- tated and said inkingl cylinders are revolved; an offset cylinder contacting said form cylinder; and an impression cylinder adapted to contact said offset cylinder, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two, subscribing witnesses.

' JOSEPH L. FIRM.

Witnesses:

ARTHUR A. OLSON, JOSHUA R. H. Po'r'is.

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