US1049413A - Offset device. - Google Patents

Description

B. P. SHELDON. OFFSET DEVICE. APPLICATION rum) APR. 10, 19os.

1,049,413 Patented Jan. 7, 1913.

2 SHEETS-SHEET 1.

E. P. SHELDUN. OFFSET DBVIGE.

APPLIGATIOH FILED APILIO, 1908,

Patented Jan. 7, 1913.

M a n M WW LW FM .NITEI) s'ra'rs PATENT onnion.

EDWARD P. SHELDON, on NEW YORK, ,N. Y., ASSIGNOR, BY MESNE AssioNMENTsao a. non AND 00., on NEW YORK, Y., A oonPoRA'noN on NEW YORK.

OFFSET DEVICE.

- Application filed April 10,

T all whom, it may concern:

Be it known that I, EDWARD P. SHELDON, a citizen of the United States, residing at New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Offset Devices,

a rewinding shaft, to which the offset web :'-;fr0m the roll-is led, the mechanism being so arrandged thatthe freshly printed sheets are intro need between the convolutionsof the rollas the material is rewound. While this ideahas certain advantages, it is objectionable because ,no efficient means was provided for controlling the delivery of the sheets to the roll of offset-material as it was rewound. Further, no proper means "was providedyto effect the delivery of the printed sheets from the roll after they had been introduced thereinto. The suggestion referred fto has not, therefore, gone into use. "The present invention has for one of its objects to provide mechanism for controlling they'delivery of sheets to a roll. of offset material as it is wound up so; that the sheets may be properly arranged "i'nthe roll and maybe readily and speedily delivered there-' ,fromfas theroll is unwound."

A "further object of the invention is to provide an improved delivery mechanism in .vide' an improved sheets may be introduced between the convowhich sheets, after having been introduced between the convolutions of a roll of offset sm' -terialt maybe rapidly and speedily deliv er'ed in flat form.

. 7A further object of the invent-ion is to pro- I offset mechanism for printing machines in which the printed lutions of a roll of ofiset material, as they Yr'ollfis being wound up, and simultaneously therewith to deliver-the sheets from another Specification of Letters Patent.

Patented J an. '7, 1913.

1908. Serial No. 426,192.

roll previously wound, having printed sheets IIItQI'POSBd bGtWBBII its convolutions, so that the operation of the printing machine and its delivery mechanism may be continued si' multaneously.

With these and'otherobjects in view, the invention consists in certain constructions, parts, improvements and combinations as will be out. 1

.Referring to the drawings, which constitute a part of the specificatiomand in which like-characters of reference indicate the hereinafter described and pointed same parts,-.Figure 1 is a side elevation of a delivery mechanism for printing machines .constructed in. accordance with the invention. Figs. 2 and 3 illustrate a modified form of delivery mechanism constructed-in accordance with the invention.

Referring to the drawings, and more particularly to Fig. 1, the offset material W will be obtained, in the construction there shown,

in web form, from a suitable source .of supply. This source ofsupply may, as shown in said figure, consist of a roll mounted on a suitable core or shaft 2, this shaft being in turn supported in suitable bearings on brackets3 extending'from the frame of the machine. In the construction illustrated in Fig. 1, a rewinding mechanism for the web W is employed, and this rewinding mechanism may conveniently include rolls 4, 5. These rolls 4; and 5, when this form of rewinding mechanism is employed, may be driven in any suitable manner, as, for instance, by a train of gearing 6, this train being in turn driven from a pair of beveled gears 7, 8, one of which may be mounted on the main shaft 9 of the delivery mechanism. The cores employed. in connection with-the winding rolls may be provided with dircw' lar bearers 10 which cooperate with the rewinding rolls at the beginning of the rewinding operation. 'In the particular machine illustrated in Fig. 1, the ofi'set web,

as it is-led from the roll, passes o'vera suitable guide roll 11, over asuitable guide 12,

by the'rewvinding rolls.

and to the core which is being operated upon The sheets which are to be interposed be-,

tween the convolutions of the offset webas it is wound up, maybe supplied in any suitable manner. The particular delivery mechanism illustrated in Fig. 1 is intended to onsuccessive sheets so that they will be pre may be vented from overlapping in the roll and readily delivered therefrom. This spacing of the sheets may be effected by a suitable accelerating mechanism. While this accelerating mechanism may be of any de-' sired form, in the construction illustrated in Fig. 1 it comprises tapes 16, 17, "these tapes running around suitable rolls. A pair of the rolls which, carry the tapes 16, are

-marked 1S, and a pair of the rolls which carry the tapes.17 are marked 19. After leaving the accelerating mechanism, the sheets meet the web W before referred to, and are forwarded thereby. When tapes such as illustrated in Figs-1 are employed to accelerate the sheets, a suitable guide,as 20, may be employed to insure the delivery of' the sheets to the web.

From the mechanism so far described it will be understood that the ofisetweb \V will be drawn from the roll supported on the brackets 3 and will be rewound by the action of the rolls 4: and5,and that the sheets, as they are forwarded, will be interposed between the convolutions of the-rolls,

successive sheets being spaced apart more or less by the action of the accelerating mechanism so that the ends of succeeding sheets are spaced apart in the composite roll of web and sheets. a

Where it is desired to have the printing machine and delivery mechanismoperate f continuously, as will usually be the case 45 where the offset delivery mechanism is employed with fast running presses, therewill' be provided an unwin-ging mechanism which may conveniently consist, as "illustrated in Fig. 1, of a pair ofunwinding rolls 21, 22; on which the composite roll of web and sheets is'supportedi These unwindingrolls may be driven in anyrsuitable manner. In

the particular construction illustrated in Fig. 1, the shafts of these unwinding rolls are provided with gears, indicated at 23, 2 1, these gears being in mesh with an intermediate, indicated at 25. The gear 24. may" be in mesh with thegear indicated at 26, this gear being driven by a large gear 27,

wfiiclb; derives its motion from a gear. 28; T is gear 28 is driven from-one of a pair of beveled gears 29, the othergear 3341f the fore referred to:

pair being mou nted on the main shaitf9 The mechanism may'also include a second .22 may; also t ween it and a serve to properly direct the sheets towardl 11e- .rewinding device consisting of a pair of rolls 31, 32, corresponding in construction to the rolls 4, 5, before referredto, these rolls biing driven'by a pair of beveled gears 33, 3 7 on the shaft 9. The shaft 2, on' which the roll is rewound, maybe engaged at its ends by hooked bearings 35,'and a pair of these bearings may be employed with theseveral the gear 34: of thispair being mounted rewinding and unwinding devices to steady 5 the rolls as they are being wound and unv wound. The bearingsf35 used in connection with the rewindingrolls 31 and '32 may slide in suitable ways'formed'in brackets,

one of these brackets being illustrated and marked 36. These brackets 36, together with the rewinding rolls 31,, 32 and their driving mechanism, may be mounted-one truck 37, which may, if desired, travel on ways 38 suitably formed in the frame.- By 5 this construction awound-up roll can be. readily removed from'the printing machine.- The bearings 35 employed in connection with the rolls 1 and i5lmay slide in suitable ways formed on the frame of the machine,

ings 35 used iikcimnection with the rolls sl1e in ways formed on!" the frame of the machine, as indicated at 40.

one of which is indicated at 39. The begr- I As the offsetweb is unwound by the ac-' 5 tion of the devibbs 22, 23, it may pass over guide rolls ll, 42, by which it isdirected to the shatter roll being operated upon by the rewinders 32, 33.

Where it isdesired to deliver the sheets- 10o "flat, a suitable .gathering mechanism may be employed between the fiat delivery and the unwinding mechanism. While the construction of this gath'ering mechanism mayibe varied, it may conyeniently consist of a cyl-' inder 13 suitably supported in the frame of the machine, said cylinder, .as is usual, being provided with taking grippers &4. Suitable v tapes, as indicated at 45, maybe used in connection withthis cylinder to holdithe sheets] thereon.

The sheets may, as shown in Fi 1, pass over the roll 41 before referred t and besuitable guide 46, which may the cylinder. If desired, an additional guide, as 47, may be employed to control the sheets and properly direct them to the gathering cylinder, when this form of gathering mechanism is employed.

It may happen that the sheets will he s delivered to the composite rolls of sheets and web that the ends of successive sheets will be varying distances apart. It is, therefore, desirable to use an evening mechanism 125; cotipera ting with, the gathering mechanism 'to bring all the sheets into register. While the details of construction of this evening mechanism,fwhen it, is employed,

m1 ht vary, itn ay well include, as-shown 4 136 1, a pivoted sheet stop 48, which ma bethrown into the path of-the incoming s ee tsand stop them until the grippers 44 are in position to takethem. This, stop may be operated in any suitable manner, as, for instance, by a rod 49 having a' fork 50 at its lower end, this fork embracing a ,cam shaft 51 and belng provided with a roll 52- which i widely.

coiiperates with a cam on that shaft.

ated intermittently by a gear 55, whichmay be in turn operatedby a sector 56. This sector may be operated through a connecting rod 57 from a crank 58 on the cam shaft 51 before referred to. The sheets may be delivered by" the flat delivery mechanism referred to, to a table, as 59, supported so as to be lowered at suitable times by chains 60.

- The details of construction of such adelivery mechanism as that just referred to are well understood in the art. Inasmuch as a full description of them will in on way conduce to aclear understanding of this invention, no attempt has been made to full describe and illustrate them. The tab e 59 may, when filled, be received on a suitable truck, indicated at 61.

The cam shaift 51 before referred to may be driven from a gear 62 fast on thesame shaft as the gear 28, this gear, through a suitable reducing train, indicated in dotted lines, driving the gear 63 on the shaft 51. This gearing may be so operate the delivery mechanism after a suitable number of sheets have been taken by the gathering mechanism.

It will be understood that by the construe-- tion so far described a rapidly operating web printing machine ma be continuously operated in connection wit an offset mechanism such as described and in connection with a delivery mechanism operating simultaneously therewith, after one composite roll of sheets and offset web has been formed and placed in position on the unwinding rolls 21, 22. The. driving mechanism is such that the parts may be driven in unison, and, therefore, while a-second composite roll is being formed, the wound and the sheets therein contained de' livered. 1 v

In case itis not desired to continuously operate the printing machine simultaneously with the delivery mechanism, a mechanism such as that illustrated in Figs. 2 and 3 may be. employed. Inthe construction shown in these figures, the winding mechanism consists of rolls 64, 65, which rolls may be simierating tapes proportioned as to first roll may be unlar in all respects to those previously described. The unwinding mechanism may consist "of rolls 66, 67, mounted similarly to, and, driven in the sameway as, the rewinding rolls 31, 32 described in connection with the printing machine illustrated in Fig. 1.

T e sheets may enter, through suitable and betaken bya set of accel- 69, 70,- the offset web W also passing between these tapes. When a comg ides, as 68,

posite roll has been iormed, it may be turnedend for-end on thei'rewinding rolls 64, 65,

site' direction and over a guide .roll From: the roll 71 the web may be led to the shaft 2 of a roll on the unwinding rolls 66, 67, which now become rewinding rolls. In the construction illustrated in Figs. 2

'and3, a fi delivery mechanism is employed instead 0 the 'fiatr delivery mechanism like that illustrated in" Fig. 1. The'sheets may,

as illustrated in Figs. 2 and 3, after leaving the ofiset web, pass between guides 72, 73,

and the guide 72may, if desired, be long enough to control the sheets fromtlie time whenthey first leave the composite roll. A suitable evening mechanism, consisting of a pivoted sheet stop 74, may be em loyed in connection with these guides, andt ere may also be employed a gathering'cylinder 76 similar to t e cylinder 43 before described. This gathering cylinder may discharge to a pivoted fly 77 of ordinary construction, the, sheets being carried down the fly by the usual tapes 78. This fly may be operated in any suitable manner, as by a' 'pair of intermeshing sectors 79, 80, the sector 80 beingoperated through a rock-arm 81 from a cam 82 on one of the driven shafts of the machine. Gearing ma /be employed. as indicated in Eigs. 2 an ".3, but as its operation is obvious a. description of it is unnecessary. It. willbe understood, of course, that 1. The combination with means fbr forand the offset web may be led in the opgoion warding a web and cutting it into sheets, of

means for windin up a web of ofi'set ma terial, and means or accelerating the sheets and delivering them to the web to be wound so that they will be spaced from each other when so inter osed.

, 2. The com ination with means for unwinding a composite roll of ofiset material and sheets, 0 a gathering mechanism, means for evening up the sheets delivered I for delivering the'gathered sheets.

3. The combination with means for unwinding a composite roll of ofi'set material and'sheets, of a gathering cylinder, :1. sheet stop for evening up the sheets taken by the cylinder, and means for delivering the gathered sheets.

4- In a printing machine, the combination with means for supplying a web of oliset material, of winding mechanism to which the web is led, means for introducing sheets-between the convolutions'of the roll of offset material as it is wound, an unwinding device for the roll of web and sheets, a rewinding device for the web thus unwound, and adelivery mechanism for the sheets. I y

5. In a printing machine, the combination with means for forming a roll of ofl:'- set material in web form having sheets interposed between its convolutions, of rewinding mechanism for the offset material unwound, said roll forming means and re winding mechanism being capacitated for simultaneous operation, means for delivering the sheets flat, and 'a gathering mechanism between the unwinding mechanism and the delivery. I

6. In a printing machine, the combination with means for forming a roll of oil'- set material in web'vform-having sheets interposed between its convolutions, of re winding mechanism for the offset material unwound, means for delivering the sheets flat, a gathering mechanism between the unwinding mechanism and the delivery,

and means for evening up the sheets taken by the gathering mechanism.

7. In a. printing machine, the combination with means for supplying a. web of'ofiset material, of winding' mechanism to which the web is led, means forintroducing sheets between the convolutions of the roll of offset material as it is wound, an unwinding mechanism for the roll of/webwinding mechanism for the roll of web and sheets, a rewinding mechanism for the Web" thus unwound, means for delivering the. sheets fiat, a gathering mechanism between the unwinding.mechanism and the delivery, means whereby said parts may be driven in unison, and means for evening up the sheets taken by the gathering mechanism.

In temimony whereof, I have hereunto set invhand, in the presence of two subscribing witnesses.

EDWARD P. SHELDON.

I/ Vitnesses:

F; W. H. CRANE,

Gno. V. VV LLIAMsoN.

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