US1448006A - Printing press - Google Patents

Description

Mar. 13, 1923. 1,448,006.. R. C. SEYMOUR. PRINTING PRESS.

HLED AUG.24, I920 2 SHEETSSHEET 2.

NVENTOR ATTORNEY Patented Mar. 13, 1923. g I Lit,

RALPH c. sermons, orrnncrriaonr, new YORK, ASSIGNOR 'ro sonwen'rz, sniziuotrn & COMPANY, 1310., A CORPORATION OF NEW YORK.

PRINTING PRESS.

Application filed August 24, 1920. Serial No. 405,638.

T all w/wmz't may concern: 1 Fig. 4 is a fragmentary elevation of the Be it known that I, RALPH C; SEYMOUR, mechanism shown in the upper part of Fig. a citizen of th United'States, residing at 1, but on a larger scale, and showing 'the 55 Larchmont, in the county of estchester parts in a different position; v 1 I 5 and State of N ew. York, have made certain Fig. 5 is a horizontal Secti n, grea y new and useful Improvements in Printing larged, taken on line 5-'5 of Figi 4; Presses, of which the following is a specifi- 1 Fig. 6 is a fragmentary elevation showing cation. I I the application of the invention to. liftinga, 60 The invention relates to improvements in 9 of the p i g Web 160 the pp y P 1 rotary perfecting printing presses, and more @1011 for the P and especially in such a press to novel mecha- Fig. 7 is a similar view to 6 showing nism for handling heavy paper rolls, such as it ol'ent position of the parts. v the offset web whichis run through the sec- Referring W In 'detall t0 the 'Q 65 '0nd couple of a rotary perfecting press t Inent of the invention illustrated by way of 15 prevent the 'ink from the side of the web X mple in theaccompanying drawings, the which has been previously printed by the invention is 'shown'appliedto the offset web first printing couple offsetting on the imll f a r tary perfecting printing press.

pression cylinder of the second printing cou- In Fig. 1, two rotary printing couples are 70 ple. shown more or less diagrammatically, print- Objects and advantages of the invention ing upon both sides of the web a. The

will be further set' forth hereinafter in part, form or plate cylinder 1 of the first printandin part will be obvious herefrom or may ing couple has its shaft mounted in bear be learned by practice with the invention, ings upon the machine frame. :The' inking 75 the same being I realized and attained mechanism may be, of usual or other suitthrough and by means of the instrument'aliable and adequate form, and is indicated ties and combinations pointed'out in the ap-' generally by the rollers 3. The cooperating pended claims. impression cylinder 4- has its shaft 5. jour- The invention consists in the novel parts, naled in the machine frame, the web a pass- 80 constructions, arrangements, combinations ing between the cylinders 1 and are be and improvements herein shown and deprinted thereby upon the first side.

scribed. I The'plate or form cylinder 6 of the sec- The accompanying drawings, referred to 0nd printing couple has its shaft 7 jourherein and constituting a part hereof, illus- 'naled in bearings onythe machine frame; 85

trate one embodiment of the invention, and The inking mechanism for this plate cylins together with the description, serve to exder may likewise be of usual orisuitable plain the principles of the invention. form, and is indicated generally by refer- Of the drawings ence numeral 8. The cooperating impres- Fig. 1 is a side elevation of a rotary persion cylinder 9 has its shaft 10- journaled in 90 fecting printing press. comprising an em hearings in the machine frame. The web at 40 bodiment of the invention applied to an offpasses from the first impressionbetween the set web mechanism, the showing being to plate cylinder'land its cooperatingimpres some extent diagrammatic; sion cylinder 45, (whereby it is printed on F ig. 2 is a fragmentary elevation, greatly one side), about the impressionv cylinder 4: 95 enlarged, and with parts in section, looking and about the impression cylinder 9, and

at the upper right hand part of Fig. 1, from passes through the impression between the the right, being taken on line 2-2 of Fig. 1, platecylinder 6 and the impressioncylinder and showing the roll lifting mechanism in 9 wherebyit is printed upon the second side.

relation to the offset web in the early stages in passing through the second printing cou- 100 of winding the web; ple the freshly printed first side of the Fig. 3 is a fragmentary detail, greatly enweb would contact with the surface of the larged, of the actuating mechanism for the impression cylinder 9, were not some meroll lifting mechanism; dium interposed to prevent it and such 'oon' time without stopping.

tact would soil the surface of the cylinder 9 with the fresh ink from the web 00 offsetting thereon, and in turn this ink would offset back again upon the web and deface or destroy the product.

It is usual in such machines where high class printing is desired to run an offset web y through the second printing couple, between the surface of the impression cylinder 9 and the previously freshly printed side of the web a, the web y being of absorbent material, such as porous, paper. This web y receives the offset from the fresh ink upon the just printed side of the web 00, and the surface of the impression cylinder 9 is thus kept clean.

For the sake of efficiency, the offset web 1] is usually of great length, so that the press may be run for a relatively long period of In addition, in presses of this general type, wherein the page capacity is being gradually increased, it has become practically impossible to handle the wound offset roll by direct man power. In a ninety-six page press, the wound ofiset roll weighs a ton or more, and

- the mechanical means herewith provided for handling the roll directly in the press without direct lifting makes the handling of the roll practically possible easily, simply and expeditiously,

Suitable mechanism is provided for winding the offset web 1 after it has passed with the freshly printed web through the second printing couple, at the same surface speed as the printed web 00. The offset web y is primarily unwound from a roll 15, passing over a guiding roller 16, and about the impression cylinder 9, between said cylinder and the web m,'and is rewound upon a roll 17. l

The roll 17 is driven at the same surface speed as the web 09, notwithstanding the con stantly increasing diameter of the roll. For

' this purpose the roll is provided with a frictional surface drive, comprising a pair of rollers 18 and 19, arranged transversely of the press, horizontally disposed and par allel with each other. Either one or both of the rollers 18 and 19 are driven, by suitable gearing, indicated herein by the gear wheel 20 fixed on shaft 21 of the roller 18. The ofl'set web comes in from the impression cylinder 9 over the roller 19, thereby giving an additional frictional drive upon the offset web to keep it at the same surface speed as the printed web.

As the press continues to run, the roll 17 grows in diameter as the offset web 2 unwinding from the roll 15 passes through the printing couple and winds up upon the roll 17. Due to the length of the offset web, the roll 17 becomes very heavy, increasing in weight to many hundreds of pounds. As the roll 15 becomes exhausted, it is necessary to replace it with the roll 17 upon which now practically all of the offset web has been wound. The offset web is then led through the press again and a new roll 17 is formed in the same manner as that already described.

Means are provided by the present invention for lifting the large and completely wound ofi'set roll 17 tothe place of exhausted roll 15. In the embodied form of such means, the shaft 28 of roll 15 is mounted in half bearings 29 on the machine frame, the top faces of the horizontal reaches of the two side frames, extending to the right from the bearings 29 in Figs. 1 and 4, form. ing a trackway 30 along past the bearing 29 and forwardly to the point where the completely wound roll 17 is lifted, whereby the lifted roll may be slid or rolled along to the bearing 29. An additional bearing 31 is also provided along the trackway 30.

As embodied, the mandrel or shaft 32 of the roller 17 at each end thereof is supported or journaled in a saddle or block 33 and 3a, which in the form shown in Figs. 1, 2 and 4c hook over the shaft 32, so that the supports are lifted or drawn upwardly as the roll 17 increases in size during the wind ing on of the offset web. Fixed to each of the saddles 33 3116134, respectively, and extending downwardly therefrom, are two bars 35 and 36, having formed on their front edges, respectively, straight racks or gear teeth 37 and 38. The bars 35 and 36 are vertically slidable on guides formed on the machine frame.

As embodied, the vertical webs 40 at either side of the frame terminate in vertically disposed T shaped guides along which the saddles 33 and 34!: slide. Each of these saddles is internally apertured to receive the T-shaped, vertically disposed guides 41, the saddles being provided with inwardly projecting flanges 4:3 that extend behind the corresponding guides to hold the saddles thereto. The geared bars 35 and 36 aresecured to the inner side of the saddles, respectively, by bolts 44:, the bars extending downwardly from. their saddles.

Means are provided for lifting the wound roll 17 by power applied thereto, either manual or mechanical, and which at the same time provides or allows for the growth or increase in diameter of the roll 17 as the offset web is wound thereonto; In the embodied form of such means, a shaft is journaled at 51 and 52' in the machine frame. Fixed on shaft 50 are two gear wheels 53 and 54, which mesh, respectively, with the straight gears 37 and 38 upon the bars 35 and'36. Fixed on shaft 50, at one end thereof is a ratchet wheel 55, and also fixed to the shaft, and preferably pivotally by a screw bolt 59, screwed into the end of the shaft. Pivotally mounted at 60 upon the lever 58 is a hook pawl 61, engaging with the ratchet wheel 55.

Cooperating with the ratchet wheel 55 also is a detent pawl, 62, pivoted at 63 on the machine frame, which is pressed into yielding engagement with; the ratchet wheel by a spring64, mounted at 65 upon the machine frame. p

Suitable braking mechanism may also be provided if desired, andas embodied a brake wheel or pulley 68 is fixed on shaft 50 and may conveniently] be integral with the ratchet wheel 55, and is so shown; A brake shoe 69 is adapted to cooperate with the brake pulley 68, the shoe'69' being-mounted on an arm 70, fixed to a foot lever 71, this structure being conveniently integral with the detent pawl 62, and having a common supporting pivot 63.

The manner of operating of thev mechanism just described is substantially as follows: H

The ends ofthe shaft 32 are held in the hooked supporting portions of the saddles 33 and 34, and the roll of offset web 17 may be regarded as being very small. As the press runs. the bite of the printing couple cylinders 6 and 9, and the action of the winding cylinders 18 and 19 will wind up the offset web upon the roll 17 atthe same peripheral speed as the linear speed of the printed web :0 running through the press. This condition is shown substantially in Fig. 1. t

As ofiset roll. 17 grows, due to the fact that its periphery rests upon the driving rollers'18 and 19, the shaft 32 will slowly and gradually be lifted. This causes the saddles 33 and 34 and the geared bars 35 and 36 to be lifted with shaft 32, andgear wheels 53 and 54 are thereby idly rotated. This likewise rotates the ratchet wheel 55 in clockwise direction in Fig. 3, the ratchet wheel rotating easily in such direction under the hook pawl 61. and under the detent pawl 62. as will be clear from Fig. 3. 7

hen the entire oflset web; is wound upon" the roll 17 or the greater portion thereof, the shaft 32 will be somewhere along the vertical side of the frame more or less near the track 30. The shaft 28 of the now exhausted or nearly exhausted roll 15 is moved into the bearing 31, as shown in Fig. 4, leaving the bearing 29 free. The workman now operates lever 58, and through pawl 61 rotates ratchet wheel 55, and therewith gear wheels and 54. This raises the rack bars 35 and 36, and therewith the saddles 33 and 34 carrying the shaft 32 of the roll 17 to the position shown in Fig. 4, that is, to a level with the tracks 30 on the machine frame. The roll 17, supported by its shaft 32 on the trackways 30, as shown in Fig. 4, is then again threaded through the machine, and the former roll 15 is placed upon the driving rollers 18 and-.19 and becomes the new'roll 17 as the offset web is re-run through'the press;

To restore the saddles 33 and 34 to position to receive the shaft 32 of the new winding on .roll 17 ofthe offset w eb, it is dropped downwardly from the. position of Fig. 4 to the position of Fig. 1. For this purpose, the feeding pawl 61 is thrown backwardly from the position of Fig. 3 out of engagement with the ratchet wheel, and the lever 71 is stepped on by a workman on the foot board 72, or is. grasped by the hand. of the workman from the floor, and is rocked-downwardly about the pivot 63. This throws out the detent pawl 62 and Lap'plies'the brake 69 sothat the mechanism will descend easily and withoutslammingQ t I a In Figs. 6 and 7 the invention is shown in modified form'applied to lifting rolls'of printing paper into position to supply the press. In the embodied form thereof, the roll of web supply has its shaft ormandrel 74 supported at each side ina bearing 75in the press frame, the topfreach of the frame forming a track 76 at each side. The saddles 78. corresponding in part to the saddles 33 and 34, maybe if somewhat different form. The mechanism is so proportioned or positioned that when the saddles 78 are run down to theirlowermost position (Fig. 6)

they will be just below the level of the shaft or mandrel of a web: supplyroll resting upon thefloor. The roll is then'positioned with its mandrel 80 just above the saddles 78, and by means of the lever 58 the roll is elevated to the level ofthe track76f The previous, roll r web supply is nearlyjexhausted at this time, and asit becomes exhausted, its mandrel '74 is liftedfrom the 6 bearing 75, and the newroll of web is rolled forward on the track 7 6- until its shaft-or; mandrel rests in the bearing 75. The lead end ofthe new webiisjp'asted or, otherwise attached to the tailend'of the exhausted web and is thereby led through the press, all in a well-known manner. w I .Theinvention its broader aspects is not limited to the specific mechanisms shown and described but departures may be made therefrom within the scope of the "accom panying claims without departing from the principles of the invention and without sacrificing its chief advantages.

What I claim as my invention is t 1. A rotary printingpress including in combination a rotary printing couple, fixed bearings for an offset web supply roll, means for winding the winding up offset web roll on a mandrel, guiding means for said winding up roll, a trackway upon which the mandrel of the woundoffset roll travels, and mechanism for delivering the wound up offset roll to said trackway,

2. A rotary printing press including in combination a rotary printing couple, fixed bearings for an offset web supply roll, means for winding the winding up offset web roll on a mandrel, guiding means for said winding up roll, a trackway upon which the mandrel of the wound offset. roll travels, and manually operated mechanism for delivering the wound up offset roll to said trackway.

3. A rotary printing press including in combination a rotary printing couple, fixed bearings for an offset web supplyroll shaft, from whence the offset web is led through said printing couple, means for driving the wind ing up offset web roll which receives the web from said printing couple, a support for the shaft of said winding up roll, means for vertically lifting said support and therewith the offset roll, and means for rolling the fully wound offset roll from said support into said bearings for the supply offset roll.

i. A rotary printing press including in combination a rotary printing couple, fixed bearings for an offset web supply roll shaft, from whence the ofiset web is led through said printing couple, means for drivingthe winding up offset web roll which receives the web from said printing couple, a support for theshaft of the winding up offset web roll moving freely with the roll as 1t is wound, means for positively lifting the roll by said support, and means for rolling the fully wound offset roll from said support into said bearings for the supply offset roll.

5. A rotary printing press including in combination a rotary printing couple, fixed bearings for an offset web supply roll shaft, from whence the offset web is led through said printing couple, means for driving the winding up offset web roll which receives the web from said printing couple, avertically movable support for the shaft of the winding up offset web roll movingfreely with the roll as it iswound, means for positively lifting the roll by said support, and means for rolling the fully wound offset roll from said support into said bearings for the supply offset roll,

6. A rotary printing press including in combination a rotary printing couple, fixed bearings for an offset web supply roll shaft,

from whence the offset web is led through said printing couple, means for driving the Winding up offset web roll which receives the web from said printing couple, a vertically movable support for the shaft of the winding up offset web roll moving freely with the roll as it is wound, and means for positively lifting the roll by said support.

7. combination a rotary printing couple, fixed bearings for an offset web supply roll shaft, from whence the offset web is led through said printing couple, means for driving the winding up offset web roll which receives the web from said printing couple, a sup port for the shaft of the winding up offset web roll moving freely with the roll as it is wound, and means for positively lifting the roll by said support.

8. A rotary printing press including in combination a rotary printing couple, fixed bearings for an offset web supply roll shaft, from whence the offset web is led through said printing couple, means for winding the winding up offset roll by its periphery, and means including supports for the shaft of said winding up roll and manually operable lifting mechanism for said supports for conveying the wound offset roll by means of its shlalft into the bearings of the spent offset r0 c 9. A rotary printing press including in combination a press frame, a rotary printing couple, fixed bearings on the press frame for an offset web supply roll shaft, from whence the offset web is led through said printing couple, supports for the shaft of the offset web winding up roll movably mounted on said frame, manually operable means for lifting said supports, and a trackway formed on the frame for rolling the fully wound up roll from said supports into the bearings for the supply roll.

10. In an offset web handlingmechanism in a printing press and in combination, an offset web supply roll, an offset web rewinding roll, means for winding said rewinding roll by saddles which move with the rewinding roll shaft as the roll grows, and means for lifting said saddles to lift the rewound offset web roll.

In testimony whereof, I have signed my name to this specification.

RALPH C. SEYMOUR.

friction contact with its periphery,

A rotary printing press including in a

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