US464857A - Joseph l - Google Patents

Description

(N0 Model.) 2Sheets-Sheet 1.

' J. L. 00X.

PRINTING PRESS. No. 464,857. PatentedDec. 8, 1891;

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(No Model.) 2 Sheets-Sheet 2.

J. L.v COX. PRINTING PRESS.

N05464:,857. Patented Dec. 8,1891.

UNITED STATES PATENT OFFICE.

JOSEPH L. COX, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO THE DUPLEX PRINTING PRESS COMPANY, OF SAME PLACE.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 464,857, dated December 8, 1891.

Application filed January 19, 1891. Serial No. 378,196. (No model.)

To all whom it may concern: the ends of a shaft '6, journaled in the frame Be it known that I, JOSEPH L. COX, of Batbelow shaft G, as shown. The gear-disks are tle Creek, in the county of Calhoun and State driven by meshing with pinions j on a driven of Michigan, have invented certain new and shaft J, journaled in bearings in the frame useful Improvements in Printing-Presses; and lying immediate shafts g i. As shown,

andI do hereby declare that the following is the said shafts are located between the plata full, clear, and exact description thereof, refens. The carriers are adapted to have typeerence being had to the accompanying drawforms T T secured to their inner faces, as inings, and to the letters of reference marked dicated in the drawings, and they are inxo thereon,which form part of this specification, clined so that the type are not horizontal in which nor liable to drop out, and, further, the arm- Figure 1 is aside elevation of my improved pivots of the carrier-supports are so located web-perfecting printing-press. Fig. 2 is a in relation to the inclination of the platens diagrammatical longitudinal sectional View that the type on the forms will be brought I5 illustrating the travel of the web through the squarely and truly against the platens when 6 5 press. the carriers are brought inward. My present invention is an improvement in WV designates the roll of paper, mounted in web-printing presses; and its object is to proproper bearings on the frame below carrier C. vide a simple perfectingpress, wherein the J designates a web-guide roller journaled 2o impressions can be taken from the type-forms on the upper ends of upwardly-inclined trackdirect and no type or impression cylinders ironsj, attached to the frame, and K isa govare employed. ernor-roller carried by a car is running on said The invention consists in the novel conirons, and which is adapted to contact with struction and combinations of parts for opand operate a brakemechanism indicated in 25 crating the type-form carriers and shifting the drawings, so as to control the revolution or feeding the web through the press, all of of the roll of paper. This governor-roller and which will hereinafter be clearly described brake form no part of present invention in and claimed. the peculiar construction thereof, and are Referring to the drawings by letters, A B fully described in my patent, No. 370,321, of 0 designate two opposite outwardly-facing plat- September 20, 1887.

ens secured centrally and transversely in the Other devices might be used to form a comframe of the press, and substantiallyparallel, pensating-loop of paper between the roll and but preferably set so that they incline toward platen A.

each other from top to bottom. L designates a looping-roller located above 35 a a and bi) are web-guide rollers journaled platen B and journaled in the ends of oscilin the frame of the press at the upper and lating levers M, which are pivoted at their lower ends of the platens, respectively. other ends on a transverse shaft or lugs Z on C D designate type-form holders or carriers the frame above platen A, and m m are fric' exterior to and opposite the platens A B, retion-rollers attached to said levers about cen- 0 spectively, and each supported on arms 0 (Z, trally thereof and bearing upon and supported which are pivoted or journaled at their lower by cams 0, mounted on the ends of a shaft ends on transverse shaftsfor lugs E, attached 0, journaled in the frame and driven by a to the frame so that the carriers can be moved gear P, meshing with gear-disk G, and Q desup to and away from the platens A B. Carignates a delivery-roll on said shaft, and q q 45 rier C is operated by pitmen F, connected to a series of endless tapes coacting with said 5 their ends and to wrist-pins fon gear-disks G, roll and running over a triangularly-arranged I fixed to the outer ends of ashaft g, journaled setof rollers and driver R r r, journaled in in the frame, and carrier D is similarly operthe frame, as shown. The gears should be ated by pitmen ll, connected to their ends arranged so as to raise or lower roller L once 50 and to wrist-pins h on gear-disks I, fixed on during each reciprocation of the carriers. :00

The pitmen, gears, &c., are duplicated at each side of the machine. The web of paper 21; is taken from roll NV over roller J, looped down under roller K, up to roller a, thence over the face of platen A to roller a, then down in rear of and between platens A B, to

- and under rollers Z), up over the face of i of web between the platens.

platen B to roller Z), then looped over roller L, down under roller S, journaled in the frame above platen B, and to the delivery rolls and tapes, as indicated. The operation is simple. After the web is threaded through the press, as described, and looped over roller L while the latter is elevated, the carriers 0 D are moved inward, and at the same time the roller L is lowered to such a degree and in such time that enough paper is paid off from the loop to enable the delivery mechanism to deliver web continuously after impression, but prevents any web being withdrawn from the roll, or rather over the platens, until the roller L is moved upwardly, which is not until the impression has been completed. After the impression the carriers move outward and at the same time roller L is raised, and it, together with the continuous action of the delivery, draws the web through the press sufficiently to bring a fresh portion of the web into position for printing. Theloopingroller K prevents any slack of the web getting in the press between it and the loopinging-roller and always maintains a uniform tension on the web. The delivery mechanism might be made positive, if desiredthat is, coacting feed-rolls might be used; but I prefer the tapes, as they can be more delicately adjusted, and they comb the web constantly forward without danger of tearing or breaking it. It will be observed that the face of the web imprinted on platen A is immediately turned down behind the platen and up against the face of platen B, so that by simply arranging the platens parallel and directing the web first over the face of one platen, then down between the platens, and immediately up over the face of the other platen the opposite sides of the web are brought into position for receiving registering impressions and the register can be produced simply and quickly without any twist of the Web, and there is only a straight length This enables 14 me to dispense with any positive infeed for the paper, if desired, and to make the looping and delivery devices perform the offices of feed devices also. The web-operating devices are so adjusted that the amount of the web fed forward or the length of web moved between the forms after each impression is equal to the length of an impression and As, however, the perfecting-impression on the web does not immediately follow after the first impression, the total forward movement of the web from the point of the first impression to the point of the second impression, directly registering therewith, is a multiple of the length of paper required for each impression plus the necessary margins, this being necessary in order that the impressions on the opposite sides of the web shall be directly op-' posed to allow the web to be afterward properly cut and folded.

The type-forms should be inked after each impression, preferably by mechanlcal means, which, however, do not form an essentialpart of present invention, and hence is not shown or described herein.

Having described my invention, what I claim as new, and desire to secure by Letters Patent thereon, is-

1. In a printing-press, the combination of two substantially parallel platens, two typecarriers coactingtherewith, and a delivery mechanism with a looping-roller for looping the web after it has been finallyimprinted before it reaches the delivery, substantially as and for the purpose specified.

2. The combination, in a perfecting printing-press, of two oppositely-facing platens, two oppositely-facing form-carriers coacting therewith, and a delivery mechanism with means, substantially as described, for C011? ducting a web of paper successively between the platens and carriers and to the delivery, and a roller for looping the web between the last platen and the delivery, substantially as set forth.

3. In a web-printing press, the combination of a platen and a form-carrier coacting therewith and a paper-delivery mechanism with a looping-roller adapted to loop the web between the platen and delivery mechanism and to throw off the loop during-the impression and to assist in drawing forward the web after the impression, substantially as set forth.

4. The combination, in a web-perfecting printing-press, of two reciprocating form-carriers, two independent platens, a paper-delivery, and a positivelyactuated loopingroller with means, substantially as described, for feeding a web of paper between the first platen and carrier, then between the platens, then between the second platen and carrier, and over the looping-roller to the delivery, substantially as set forth.

5. The combination of the oppositely-fac ingplatens, the oppositely-facing form-carriers coacting therewith, and the delivery mechanism with the guide and looping rollore for directing the web, substantially as specified.

6. The combination of the form-carriers, the oppositely facing platens intermediate and coacting withsaid carriers, and the delivery mechanism with the web-looping roller L, the levers M, and cams for actuating the same to raise and lower the roller once for each reciprocation of the form-carriers, sub stantially as described.

7. The hereindescribed web perfecting printing-press, consisting of two oppositely IISI' facing platens, two exterior movable form-carriers coacting' with said platens, Web-guide rollers for directing the Web between one carrier and platen, then between the platens, and then between the last platen and carrier, a paper-web delivery, an idler-roller or governor for looping the Wb between the paper roll and first platen, and a positively-actuated looping-roller for looping the web between the

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