US2398832A - Printing mechanism - Google Patents

Description

April 23, 1946.

J. F. JIROUSEK PRINTING MECHANISM Fiied Nov. 21, 1941 :5 Sheets-Sheet 1 I Ibl. II w I g l' h 1.. lll

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n no fg u I a N. to m a m 1 I l I I I CD I 04 Q IIQN I I o I 0 I i l i 1 51 I I I l I I if, 1 INVENTOR.

I l I JOSEPH mmousax m in i] I q ATTORNEYS April 1946- J. F. JIROUSEK PRINTING MECHANISM s Sheets-Shet 2 Filed Nov. 21, 1941 INVENTOR.

JOSEPH EJ|\ROUSEK BY I q I I ATTORNEYS April 23, 1946. JIRQUSEK 2,398,832

PRINTING MECHANISM I Filed Nov. 21, 1941 s Sheets-Shet s INVENTOR. JOSEPH F. Jl ROUSEK I Q KW 19 r ATTORNEYS Patented Apr. 23, 1946 PRINTING MECHANISM Joseph F. .lirousek, Cleveland, Ohio, assignor to The Chandler & Price Company, Cleveland,

Ohio, a corporation of Ohio Application November 21, 1941, Serial No. 419,875'

- i 2 Claims. (Cl. 10177) This invention relates as indicated'to printing mechanism, and more particularly to an im provement in lithograph presses ofthe type 'disclosed in my issued Patent No. 2,109,486. When printing sheets on a cylinder press such 9 as the aforementioned lithograph press disclosed cross shaft; in Patent No. 2,109,486, it is not infrequently de- Fig. 5 is an end view of a printin roller of sired to print some small local area of the sheet such numbering machine; in a different color or to number the sheets con- Fig. 6 is a view of the type face'of suchroller; secutively, or the like. Sometimes, as when Fig. 7 is a sectional View through suchroller printing a sheet of checks, it is even desired to taken along the line 1-1 on Fig. 5; and print a plurality of consecutive numbers on each Fig. 8 is a perspective iew of a printing form sheet, such numbers also being consecutive from optionally employable in accordance with one sheet to sheet. Prior to the invention of the press embodiment of my invention. of the type disclosed in Patent No 2,109,486, it Now referring more particularly to such drawwas not possible to adapt the usual type of auto ings, a pair of sidemembers l and 2 are pivotally matic numbering device, for example, to a lithosupported by brackets 3' and 4 carried by side graph printing press since the cylinders were frame members '5 and 6 respectively of the press. disposed in a manner affording toolittle' space A cross shaft 1 isjournalled between such side for such attachment. Also, of course, in a lithomembers I and 2 and is adapted to be rotated graph press the impression cylinder has a metal in timed relation with metal surfaced impression surface affording an unsuitable platen for use in cylinder 8 by means of gears 9 and [0 respecconjunction with the metal type of the usual tively mounted on such shaft and cylinder. The numbering machine or other similar device. rubber surfaced lithograph cylinder (not shown) It is, therefore, a primary object of this invenis also driven in timedrelation with such imprestion to provide an auxiliary printing mechanism sion cylinder-by means of gear ll adapted to enadapted for use in conjunction with the usual gage gear I0. Such lithograph cylinder with its metal impression cylinders of lithograph printgear II is journalled in sliding members such as ing presses to print relatively small local areas of 12 adapted to be moved in and out by adjustthe sheets passing through such presses. ment of turn buckles such as [3 to move such Another object of this invention is to provide lithograph cylinder in and out of operative ena special numbering device and means for mountgagement with impression cylinder 8, as disclosed ing the same which will be operative to number. in my aforesaidpatent. The sheets being printed sheets as such sheets are carried around by the 1 are fed between such lithograph and impression impression cylinder. 5 cylinders and carried around the impression cyl- Other objects of this invention will appear as inder to deliveryconveyor means driven through the description proceeds. bevel gears l4. l

To the accomplishment of the foregoing and A short cylinder or wheel I5 is mounted on related ends, said invention, then, consists of the, i shaft 1 adapted to contact the end portion of ms ans hereinafter fully described and particu- 40 cylinder 8 farthest removed from gear ID to aid larly pointed out in the claims. in maintaining the parallel alignment of shaft 1 The annexed drawings and the following dethereto. One or morejwheels [6 of smaller discription set forth in detail certain mechanism ameter than wheel I S are keyed to shaft 1 by embodyin the invention, suchv disclosed means means of keys I l for slidable movement thereconstituting, however, but one of various mealong and adapted to be fixedly positioned therechanical forms in which the principle of the inon by means of set screws [8. Blocks H! are vention may be used. I J adapted to be mounted as desired on the periph- In said annexed drawings: cries of such wheels l6' and held in place by Fig. 1 is a front elevational View of the upper means of screws 26. Such'blocks are provided portion of a press showing the impression cylinwith keyways 2| in which printing devices, such der thereof and the manner of mounting the as automatic numbering machines 22, may be mechanism of my invention thereon; secured bymeans of removable stops 23. Such Fig. 2 is a side elevational view of such portion numbering machines are provided with arms 25 of the press showing the driving and mounting carrying rollers 25 which maybe operated to trip means of my mechanism;

Fig. 3 is .a cross-sectional view taken along the line 3 3 on Fig.1;

Fig. 4'is a sectionalview taken along the line 4-4 on Fig. 3 and showing the manner of mounting a numbering machine on its supporting and set such machines for the purpose of progressively bringing consecutive numbers into printing position. Such numbering machines are of the usual type made up of discs such as 26 adapted to be rotated by means of ratchet teeth 21 but bearing a rubber type face 28 instead. of the usual metal type face since it is intended that such numbering machine cooperate with the metal surfaced impression cylinder 8 in imprinting the sheets as 'they are carried about the latter. Fingers '29 are provided mounted onshaft 30 and adapted to be adjustably positioned therealong by means of set screw 3!, it being" noted that said shaft 30 serves to pivotallyrcon nect the supplemental frame, comprising interconnected side members I and"2,-' with the main frame of the press. Such fingers are positioned; to engage rollers 25 of the respective numbering machines as shaft 1 rotatesand thus'toJset-1thei numbering machines each time shaft 1 revolves. It will be understood of course that any-desired number. of wheels llimay bemounted onshaft 7, and likewise a plurality of numbering machines may becarried on. each such wheel.

Instead of suchnumbering machine, various other printing forms of desired dimensions may be employed for mounting in blocks I9, such as rubber printing plate 32 (Fig. 8).

Side members land 2 are further connected by tie rod 33 to ensure rigidity of the. structure. Cams 34 and 35 are eccentrically keyed to the respective ends of cross shaft 35 journalled in side members I and Zandare adapted to heretated by action of arm 3'l and link 38 when'members [2 are slidably adjusted .to-move the lithograph cylinder away from the impression cylinder. Since such cams bear against press frame members and 6, such movement of members I2 is likewise operative to. swing the-supplemental framecomprising sidelmembersl and-2 about shaft 30,- whereby said frame is pivotally'mounted in brackets -3 and 4,'to move'the numbering ma chines 22 or othersuch printing-forms out-of position to contact cylinderr- 8.- Such movement is but slight and need not-beoperative .to entirely disengage gears -9 -and.1 I 0 sothat-readjustment will .not be necessary when the de'vice is againput in:use.-

A special inking mechanism:isxprovidedin the form ofan'adjustablefountain 39 mounted ..-.on brackets-Ml carried bysidewmembers 'l and;--.2.- The ink .is transported from. steel-fountainroller ll to steel distributor or vibrator roller 42 by means of the compositiontransfer'ordoctor roller 43 mounted for oscillatory movementabo-ut shaft a supplemental Or -auxiliary printing;mechanismz which may ,be employed. intconjunction with. the

impressioncylinder of a lithographzprintingtpress I and which may readily be moved into inoperative position when desired. As a matter of fact, by disconnecting link member 31, frame members I and 2 and the entire mechanism may be swung back and up out of the way should further access to the impression cylinder be desired. It is obvious that such mechanism is easily adjustable to prepare the same for a wide variety of purposes and "that numbering or other 'localprinting of sheets after they have passed fromthe lithograph cylinder may be accomplished without in any way interfering with the ordinary operation of the 44 which also acts as a supplemental tierod-con:--

press.

Other modes of applying the principle of my in vention may be employed instead of the one explained;-change being made as regards the mechanism herein disclosed, provided the means stated by-any -oftthe-following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claimas my invention:

1. .In a printing press having main.framemem-- bers and a metal surfaced impression cylinder rotatably mounted therebetween and cooperating with a rubber surfaced lithographic transfer cylinder, an auxiliary printing mechanism comprising a supplemental frame including interconnected side members, said supplemental frame being pivotally mounted on said main framemembers, a shaft journalled between said side members, said shaft extending parallelto said-impression cylinder, a wheel mounted on said shaft and adapted to contact said impression cylinder to hold said shaft and supplemental frame in predetermined spaced relation thereto, means forrotating-said shaft and impression cylinder in timed-relation, a printing. form of relatively narrow dimensions compared to said impression cylinder'adapted to be .adjustably positioned along said shaft to engage said impression cylinder when said wheel is in .contactwith the latter, and means for swinging the supplemental frame out of operating position..

2; In aprinting press having main frame members and an impression cylinder vrotatably mounted therebetween and cooperatingwith a transfer cylinder, a swingable auxiliary printing mechanism comprising a supplemental frame including interconnected side. .members, said supplemental frame beingv pivotally mounted on saidmain frame members,. cam means. to-swing-said supplemental frame, a shaft journalled between said sidemembers, said shaft" extending parallel to said impression cylinder, .a Wheel mounted on said shaft and adapted to contact said impression cylinder to hold said shaft and supplemental frame in predetermined spacedlrelationthereto, means for rotating said shaft and impression cylinder in timed relation, a printing form of relatively'narrow dimensions compared. tosaidimpression cylinder adapted to be adjustably positioned alongsaid shaft, saidform being adapted to engage said. impression cylinder when said wheel is in contact with the latter, means for. inking said form supported by said supplemental frame and throw-out means; including slidable bearings mounting-one of said cylinders and a connection to said cam means, tofplace' said cylinder in inoperative positiomand also to swing said supplemental frame out.

JOSEPH F. JIROUSEK.

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