US1733707A - Multiple-width printing press - Google Patents

Description

OC. 29, 1929. H, A w WOQD 1,733,707

MULTIPLE WIDTH PRINTING PRESS Original Filed Aug. 4, 1923 2 Sheets-Sheet l Oct. 29, 1929. H. A. w. wooD WIDTH P Il y a Mw, im

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Patented Oct.`29, 1929 YORK, N.

Y., A CORPORATION oF-VIRGINIA MULTIPLE-WIDTH PRINTING PRESS f Application yfiled yAugust 4, 1923, Serial This invention relates to a printing machine yhaving a width much y,Q ,rreater than is usual,

to permit the 'simultaneous printing of a plurality of webs.

The ychief object of rthe invention is tor provide formaling such a machine practical by providing means ywhereby the printing and plate cylinders and the ink roll can be steadied ,l at points intermediate their bearings to prevent their rspringing .and reduce yvibration and consequent imperfections in the product. The invention also involves details of the means for accomplishing this result, the 'combination of a-.plurality ,offsupports' for the cylinders, and the provision of special forni rollers toy cooperate witlistliem. c

Reference is to behad to thek accompanying drawings, in which y Fig. l is a longitudinal sectional view of a part of a printing press showing theieatures to which this invention isadaptedto be applied and illustrating in detail certain ofthe Supports; f f f.

Fig. 2 is a similar viewoftlie other end of ythis part of the machine showing a modified fornir of plate cylinder steadying means;

F 3 isa plan looking'in the directionoi the arrow 3 in Fig. l; 3 f f Fig. 4 isa .sectional view of the ink fountain on the lined-4 of Fig. l;

Fig. 5 is a plan `ogtoiie of the printing couples showing the'form roll therefor slightly displaced to enable to he shown in this View; f n n Figs. 6 and 7 are enlarged sectional fragmentary views of a portion oi the plate cylinder showing two forms of margin rings for cooperation with the steadyiiig device, and Figs. 8, 9fand l0 are similar enlarged sectional fragm'entary views oi the impression f Cylinder `Shmrfing three forms of margin rings therefor, all vconstructed in accordance with this invention. Figs 5, Gand '9 showthe one term of rings, and Figs. 1,3,7 and l0 another form,I ,y y i ,i

I have shownthe invention as applied to aperfecting yweb press comprising two plate cylinders lOand two impression cylinders l1,

arranged' in ya well lmownfway.' They are. y used, of course,-with an ink fountain `12,71nli 'saine'size and 'and oi such size thatr it and holds the same in that direction or sag between its bearings.`

No. 655,772. Renewed March 27, 1929.y

roll 13,inkfcylinder14, distributing rolls l5,

a pair of yform rollers 16 at each end of and the press. The ink fountain vided with the ductor roller back 57 and scraping screws 59. Of course, these iolls and cylinders are supported in end bearingsthat necessarily arefar apart.

As stated, this inventiony is as usual is pro- 17 and'with a intended to be used on ay wide press and I have shownfit as.

applied. to a press having three' times the width of theusual press for printing on both sides of three webssiinultaneously. `This involves thelcngtheiiing of the yplate and impression fcylinders, as n inder and inky roll, yto ysuch anextent that if made as the corresponding members are usually niade,tlieywould be apt to spring at points between ytheir bearings, yand thus interfere with the clearness ofthe product. This in-ii veiition' relatesniainly to the provision of means kfor preventingthis springing and in .factireducing all'vibration. f L

In 'theirst place the ink roll is supported at one ormorepoints between its bearings, which are rfar apart, by an idle supporting roller 60. This roller in each case is provided with integral into bearings 62 preferably of softmetal cast aroundr them or aroundr master studs of the shape. This roller is located n bears rdirectly on the bottoni ofthe ink roll at a convenient point up so that iteannot ,spring This roller 60" is supported in an offset 63 at rthe bottom oi' the Ainl: fountain and operates 'inthe inl; 'at all times. Ther ,draink plug `Get ycan be located convenientlyy in this offset asy itis'the lowest point in the ink'fonntain.l 7 Each of the plate cylinders l0 is shownk as dividedinto three parts, each part being blade58 adjustable by;

well as the `ink cylstuds .6l `which ,projectv ,LassIsNonmo WoonNEWsPnPI-in MA- f adapted lto carry two plates, 65 Vii" desired,

'these plates beingy placed on the cylinders in the usualvway and ing tliesame space width` press of the each pairof plates, centsectionsof the spaces for 'margin each pair of plates occupyasis usual in a single page ordinary type. f Between rings These margin or between eachk two adjaf l plate cylinder, Iprovide ico y rings are located -in circumferential' recesses in the plate cylinders and extending around them. They are provided with over-hanging edges 67 angularly shaped to overlap the corresponding edges ofthe plates 65 and hold themV in position on the cylinder. Y

vThe main body of each ring is located below the printing surface of the cylinder or rather of the plates thereon, but eachone has a cylindrical contacting surface 68 extending all the way around it which can bejlocated in various ways. Tn Fig. 6 I have shown this contacting surface 68 as located above the printing surfaces, that is, it projects beyond them a uniform distance all the way around. In Fig. 7, I have shown the corresponding contacting` surface 69 as located ybelow the Y printing surface. Bot-li of these forms come within the scope of this invention;

Y Each of the impression cylinders of course, is provided with the usual blanket 7 O which is arranged to extend a sufficient distance beyond the metallic surface of the cylinder to bring it to a certain height or diameter. These blankets are arranged in series, one for each section of the cylinder. Between the fends ofeach two adjacent blankets is a bearing ring 71. For the purpose of cooperating with a plate cylinder like that shown in Fig.

67 the bearing ring 7l is sunk not only into the Y surface ofthe impression cylinder but its bearing surface is sunk below the bearing surface of the blankets a sufficient distance to permit the projecting contacting surface 68 in L6 to Contact therewith at all times. T his prevents the springing of one cylinder independently of therother and cylinder is crowded over'out of its normal position. Y Y y For the purpose of cooperating with such a contacting surface as 69, in Fig. 7 I have shown the bearing ring in Fig. 10 with its bearing surface projecting above the bearing surfaceofthe blankets.r Itis not necessary to have either of these constructions, as in Fig. 8 T have shown a printing cylinder l0 Vand impression cylinder 1l with a margin ring 72 on the former and a bearingV ring 7 3 on the latter exactly of the respective sizes of the plates on one Vcylinder and blankets on the y other. In all these cases the respective margin rings and bearing rings are in Contact with each other at all times between the ends of theV plates and of the blankets. They are located in Vthis way to 'prevent the springing lof these cylinders with respect to each other as stated. Y

It is to be observed that the four cylinders are, located in contact in series along the press and that the two plate 'cylinders which are on the outside larealso provided with margin supports 7 4 at opposite points. These marginl supports are merely projections on theA frame of the printing press provided with means yet neither margin rings in the length of the plate and they constitute Ypositive means for preventing the plate cylinder springing back toward the margin support.V Y

At the other end a similar arrangement is provided. .in Fig. 2 have taken occasion to show a modified form of margin support 8O constituting a part of the frame, and having a roll 8l and adjusting screws 82 for the ame purpose as the corresponding parts 78 and 77 just described. The roll 8l is mounted on a link 83 pivoted 'on'a stud 84 on the margin support 80. This link has a projection 88 against which the screw 82 engages to hold the roll up to its margin ring. Ordinarily the sine form of margin support will be used on both ends of thesame press7 but either form can be employed.

Tt will be seen, therefore, that the margin supports 74 or 80 with their cooperating parts 'act oppositely to prevent the whole series of cylinders yielding between their bearings in opposite directions so that all of them are held against moving in any direction out of their circular orbit.

The pressure is transmitted in opposite directions throughout the series of plate and impression cylinders by the margin Vrings which are mounted firmly on their respective cylinders. In this way the vibration and displacement that otherwise would take place is avoided and it is made practical to provide a press having a width equal to several newspaper page widths. At the saine time a construction is provided. simple and inexpensive, and the total cost of these-parts of such a press isrvery little more than the total cost of the same parts of a single press of the saine type.

It is to be noticed that the *bearing rings 7l on the two adjacent impression cylinders bear Yon each other in the 'preferred form shown in Figs. l, 2, 7 and 10, to transmit the pressure across the two couples. The rings 7l in this case project beyond the Vimpression surface and the form rollers 16 are provided with circumferential groovesr 9 to receive them. Y Vith the ring on the impression cylinder larger than the pitch diameter of the impressioncylindei, the ring on the platecylinder issmaller than plate circumference. Therefore, there is no inliing on the ring on the plate cylinder. The slippage is immaterial.

j Although have illustrated vand described two single forms of this invention I am aware of the fact that other modifications can be made therein by any one skilled in the art without departing from the scope of the invention as expressed in the claims.

Therefore, I do not wish to be limited ,to all the details of construction herein shown and described, or to the particular type of press illustrated, but what I do claim is l. In a web perfecting press, the combination of two printing couples, each comprising a plate cylinder and an impression cylinder of a length suliicient to permit of the printing of a plurality of page widths, said cylinders being arranged along the machine in Contact with each other, with means on said cylinders intermediate of the printed prod ucts for transmitting any thrust from one cylinder to the next in either direction, and means located in Xed kposition on the frame of the machine at the opposite ends of said series of cylinders for bearing on said cylin ders and preventing vibration thereof, whereby the vibration of the intermediate cylinders is also reduced.

2. In a printing press, the combination with a plate cylinder bearing a plurality of rows of printing plates and an impression cylinder, of bearing rings on said cylinders betweenl` the rows ofprinting plates and contacting directly with each other for transmitting thrust from either cylinder to the other and reducing vibration, and rollers mounted in stationary bearings at opposite ends 0f the frame each in firm contact with one of said rings for vreceiving the thrust therefrom.

3. In a printing press, the combination with a plate cylinder bearing a plurality of rows of printingplates and an impression cylinder, of bearing rings on said cylinders between their printing surfaces contacting directly with each other for transmitting thrust from. either cylinder to the other and preventing vibration, rollers mounted in stationary bearings at opposite ends of the frame of the machine each in firm Contact with one of said rings for receiving the thrust therefrom, and means for adjusting said rollers toward and from the cylinder to insurefirm contact with the ring.

4. A web perfecting press having two 'printing couples, the impression cylinders having circumferential surfaces higher than the rest of the impression surfaces and arranged with the highest surfaces of the two impression cylinders in Contact to transmit the thrust and reduce Vibration. y n

In testimonywhereof I have hereunto affixed my signature.

HENRY A. WISE WOOD.

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