US863591A

US863591A - Rotary web-printing machine.

Info

Publication number: US863591A
Application number: US33314906A
Authority: US
Inventors: Reuben D Coy
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-09-04
Filing date: 1906-09-04
Publication date: 1907-08-20
Anticipated expiration: 1924-08-20

Description

PATBNTED AUG. 20. 1907;

R. D.GOY. ROTARY WEB PRINTING MAGHINB.

ABPLIOATION FILED SEPT. 4, 1906.

8 SHEETS-SHEET- 1.

PATENTED AUG. 20, 1907.

- R. D. GOY.

ROTARY WEB PRINTING MACHINE.

APPLIOATIOR FILED SEPT. 4, 1 906.

a sums-sham 2.

PATENTED AUG. 20, 1907.

D. coY. ROTARY WEB PRINTING MACHINE.

I APPLICATION FILED SEPT. 4, 1906.

8 SHEETS-SHEET 3.

No 863,591: PATBNTBD AUG.20,1907. 11.1mm.

ROTARY WEB PRINTING MACHINE. APPLICATION FILED SEPT. 4, 1906- 8 SHEETS-SHEET 4 PATENTED AUG. 20, 1907.

R. D. GOY.

ROTARY WEB PEINTING MACHINE.

APPLICATION FILED SEPTA, 1906.

s SHEETS-SHEET 5.

Nouns PnlIsJlt Elm mam-am n c No. 863,591. I PATENTED AUG. 20, 19074 .R. D. COY.

RQTARY WEB-PRINTING MACHINE. APPLICATION FILED SEPT. 4, 1996.

No. 863,591. PATENTBD AUG. 20, 1907.

ROTARY WEB PRINTING MACHINE.

APPLIOA'IION nun enter. 4, 190a.

8 SHEETS-SHEET 7.

PATENTED AUG. 20, 1907.

3 SHEETS-SHEET 8.

Inn: PM. hm. Luna. m a &

} R. D. OOY. ROTARY WEB PRINTING MACHINE.

APPLIOATION HLEI) BERT. 4, 1906.

UNITED STATES REUBEN n. GOY, OF GLENOOE', ILLINOIS.

ROTARY WEB-PRINTING MACHINE;

To all whom it mdy concern:

Be it known that I, REUBEN D. CoY, a citizen of the United States, residing at Glencoe, in 'tlrecounty of Cook and State of Illinois, have invented certain new and useful Improvements in Rotary Web-Printing Machines, of which the following is a specification.

This invention relates to improvements in printing machines of that class wherein a continuous web is drawn from a roll and printed upon by rotating curved printing-surfaces and severed into sheets of desired lengths. I

In the printing of work in which more than one impressionis to be made upon the sheet at the same point, either in different colors upon the same side, or in the same color or different colors upon the opposite sides of the sheet, it is of great importance that successive impressions register accurately. Heretofore it has been found to be difficult to do this class of work upon rotary web-printing machines, for the reason that in such machines, as heretofore constructed and operated, the web moves continuously and it is a matter of great difliculty to attain accurate register of a plurality of impressions upon a moving web.

The object of my invention is the production of a machine which is capable of placing a plurality of impressions upon the web at the same point in the length of the same with the desired accuracy. In the accomplishment of this object I. employ a pair of cylinders rotating continuously and each with the same peripheral speed as the other, said cylinders being equipped with printing plates and one or more impression plates so disposed around said cylinders that a printing plate and an impression plate will be in opposition at deter- .minate points in the rotation of said cylinders. A portion of the web is carried forward tlrrough the printing point while said surfaces are in opposition, said portion of the web being then moved backward to position for another impression at the same point in the length of the web, while the next printing surface in the series is rotating to position for another impression, I also employ, in combination with the foregoing, intermit- 'tently operating web-feeding means adapted to carry into the machine at, each operation the exact length,

of web required and simultaneously to draw from the .machine an exactly equallengthof the same. I also employ in mylp'rinting machine a novel form of webcutting "devicefor'se'vering the printed sheet from the web's p In the drawi I s accompanying this specification, Figure 'l is a broken elevational side vow of a printing machine constructed in accordance with my invention. Fig. 2 is a reversed vertical longitudinal sectional view of the same on a slightly enlarged scaleg some of the parts being omitted. Fig. 3 is an elevational side view of a portion of the machine showing the side opposite Specification of Letters Patent.- Application filed September 4,1906. seeierrre. 333,149.

Patented Aug. 20, 1907.

that shown in Fig. 1. Fig. 3 shows in elevation a box cam adapted to actuate the sheet-severing mechanism. Fig. 4 is an enlarged detail showing the inking devices for one of the cylinders. Fig. 5 is a view similar to Fig. 4, but looking at the and showing in detail the means for throwingthe inking devices into and out of contact with their corresponding printing surfaces. Fig. 6 is an enlarged elevational side view 'of a portion of the machine, showing the'ine discharge mech--.65

termittently-operating web-feed and anism. Fig. 7 shows the same in vertical crosslection. Fig. 8 is a detail of certain parts of the same: Fig. 8 is a plan view of the dog or pawl shown in Fig '8. Fig. 9 is a vertical sectional view of the web-cutting device which severs the printed sheet from the end of the web. 7 0

Figs. 10 and '11 are respectively an elevation cross-sectional View of the oscillating member cutting-off device shown in Fig. 9.

In the several figures of the drawings, 1 is the frame and a of the ofthc machine, 2 is the main shaft having upon one of its ends the fly-wheel 3 and the driving pulley 4.

Keyed upon the opposite end of the main shaft 2 is apinion 5 meshing with a gear 6. This gear 6 is secured upon the shaft 7 of a printing cylinder 8 and meshes with a similar gear 9, secured to the shaft 10 of another printing cylinder 11. The printing cylinders 8 and 11. are thus made to rotate synchronously and with the same peripheral speed. The peripheries of one or both of these cylinders 8 and 11 are divided into a number of'substar'rtially equal parts, alternate parts being recessed, as best shown in Fig. 2, and so disposed around the cylinders that, when said cylinders are rotating, a high portion on one cylinder will always meet a corresponding high portion on the other cylinder and,

conversely, a recessed or low portion on one of the cylinders will meet a low portion on the other cylinder. The high portions of the cylinders are adapted, in a for the attachment thereto of curved familiar manner,

plates. These plates may be either smooth impression i such as electrotype or stereoplates or printing plates type plates, as desired. Y The web is drawn from the roll 12 and passes under the roller 13, thence upwardly andover the roller 14 and between this latter and the superimposed roller 15.

From this point it passes to the roller 16 and is led there- 1 00 from to aroiler 17, thence downward and under a roller 18. This roller 18 iscarried by a vertically-movable gate and has movement'therewit The gate consists of a pair of

rods

19 and 19, moving in slide bearings 20 and 20 near their lower ends-and in slide bearings 21 and ZP-near their upper ends. Carried by the gate adjacent the upper ends of the

rods

19 and 19 is a roller 22. This latter roller is vertically adjustable upon the gate, whereby the distance between the

rollers

18 and 22 may be variedfor a purpose hereinafter explained. Carried other side of the machine, 60

the roller 22, thence downward and under a stationary which meshes with the gear roller 23 and is led from this roller to the roller 24, pass. ing below the same and between it and the roller 15.

The

rollers

14, 15 and 24 are geared together so as to retate with the same peripheral speed. Itwill be seen that by this means the length of paper drawn into the machine by the rotation of these rollers is exactly equal to the length of web discharged from the machine by Means are provided where- I the rotation of such rollers. by these rollers 14,- l'gtand 24 have imparted to them an intermittent rotation,

The. operation of the machine in drawing the web from the roll, printing upon 'the same a number oftimes at the same point in its length, .ilischarging the same from the machine and cutting itinto sheets is as fo llows:The cylinders 8 and llrotate continuously and in the direction indicated by the arrows in Figs. 2 and 3, If it be desired to print tw ce at the same point on .the same side of the web in two colors, the high portions .of the cylinder 8 will be e'quipped with printing 'plates, I 'jand the corresponding high portions of the cylinderll willbe equipped with impression plates with the 'usual tympansheets stretched upon the same. The gate cari with it through the printing operations when'the recessed portions of the jalready printed upon and preferably 'iedup, and while v and 24 are at rest printing operation is takihg place.

.mo've the por'tionof the lrying the'rollers cams 25 and 25", as ,hereinbefore explained, andcarries printing point between the cylindersthe portion of the web supported by said gate. These cams 25 and 25} are so formed and their movement is so timed with relation to the rotation of the cyl- 8 and 11, thatthe gate rises continuously'while plate-bearing portions of those cylinders are in op position, and a printing operation is occurring,- and is lowered during the interval between two successive cylinders 8 and 11 are-in'o'ppo'sitioni The

rollers

14, 15 during the-upward movement of the gate and the amount of paper within the machine, there- 'fore,is unchanged during this movement'and while a I The earns 25 and 25 are formed so as to liit the gate with the proper speed t0 web supported by such gate th -ohghthefprinting point between the cylinders at the exact speedbf the printing and impression surfaces,

whereby a printed impression is properly placed upon the web. These cams are arranged to also lower the gate and; thereby toearry back the portionoi the web at a much more rapid rate than that at which it is car the

rollers

14, 15 and 24 remain at'rest. If itb'e desired to use the machine as a perfecting press, printing' upon both sides of the paper, each cylinder will have placed: thereupon apri tingplate and an impressionplate,

these plates being so arranged that each printing plate will be metby a corresponding impression plate as it rotates toward the printing point. The action oi the this movement occurring at the proper period in the cycle of operations otthe machine. The means whereby this is accomplished will beex: .plained hereinafter.

18 and 22 is lifted by the pair of open web-lilting gate will be the same in this case as in the 1 case where the two impressions are placed upon the same side of the paper, as above described.

It will he soon that if the cylinders 8and 11 are formed with two high portions and two low portions, as

shown herein, and with the gate adapted-to lift and re- I turn the web twice during each complete'revolution ofthese cylinders, two impressions will he placed upon the web at exactly the same point in the length of the web so .that, exact registration can be insured either upon'the same side or upon opposite sides thereof; "If desired these cylinders maybe peripherally divided into six or more portions, a high; portion alternating with a low portion. The gearing by which the shaft 26, upon which are mounted the

cams

25 and 25, is driven,

would then be arranged so the cams would-rotate andlift the gate as many times during the rotation of the cylinders 8 and 11 as there were printing plates upon the V cylinder. During'the running of themachine thecylinder's 8 and 11 rotat'e continuously and the web-carry ing gate reciprocat'es vertically and continuously, the

latter moving upward while the complementary high surfaces upon the two cylinders are in opposition, and

descending afterthese high surfaces have passed out of opposition, and while thenext following pair of complementary high surfaces are rotating to printing position. I v v I If nonewlength of paper were fed intothe machine an indefinite number .of impressions would be placed upon the web at the same point The paper is therefore given a forward movement after the desired number of registering impressions, in this case two, have beenplaced thereupon. This result is accomplished hylsuitable'means adapted to throw the intermittentlyactua'ted feedand.

discharge rollers

14, 15 and 24, into operation after each series of registering impressions has been made, or, when constructed as here shown, after the cylinders have made a complete revolution.

In some cases it is'desirable that these feed and discharge rollers be actuated after eachimpression. This will be the case when two identical printing plates are employed, in which case itwould not, of course, be desired to superiinpose the printed impression ob tained from one of these platesupon that obtained from the other plate. With such anarrangement of plates the feed and discharge roller actuating means are set to give a forward impulse to the web after each printing operation. There is thus given to .the machine a double capacityfor single-impressionwork. i

In Figs. 6 and 7 are shown the means for operating the ieed and discharge rollers and the means vfor changingirom single-impression to louble-impression feed,

and vice versa. Upon the shaft 28 of the roller 15 is loosely mounted a gear 29, this gear being rotated back and forth by the sector gear 30, the latter being '120 oscillatedthe pitman 31 which is'secured at one of its ends to thesector gear 30, and atits opposite end 32 providesgrneans-Qwhereby thelength of the throw of the sector g'trfso, l

feedidevic'e, are regulatedlfifionnected to the loose gear "29" and rotating therewith; is aldog carrying disk 35, having a'boss 36 to which is pivoted a dog or pawl 37. (Figs. 7-and 8); This dog is adapted to engage teeth upon a ratchet disk 38, which is fast upon the shaft 28. 14s the sector gear 30 oscillates, the gear 29 is rotated back and forth, the dog-carrying disk 35 being carried therewith, and the dog 37 engaging the I teeth'on the ratchet disk 38 to drive it in one direction, but riding over these teeth when moving in the other direction. In this way the shaft 28, and the roller 15 upon this shaft, are given an intermittent movement in one direction. As the

rollers

14 and 24 are connected by gearing with the roller 15, opposite,

so as to rotate with the same peripheral speed. the web,

within the machine being maintained constant at all times.

The ratchet disk 38 is formed with a hub 39 loosely mounted upon which is an idler disk 40. The dog 37 is provided with a tongue 41 adapted to rest in a notch 42 in the edge of the idler disk 40. 'The idler disk is thus loosely connected with the pawl-carrying disk 35'and is thrown back and forth thereby. The office of this idler disk is to serve, by itsinertia and momentum, to lift and lower the dog or pawl 37 out of and into engagement withthe teeth of the ratchet disk 38 at the proper time. It will be seen that when the point 37", of the dog 37, is inserted between the teeth on the ratchet disk 38, and the latter is given a thrust by the rotation of the sector. gear 30, the ratchet disk 38 and the shaft 28 upon which this disk is secured,

2. ill be rotated and the

rollers

14, and 24 will turn and draw into the press, and at the same time discharge tl1er'efrom, a certain length of the web. When this movement of the disk and rollers is suddenly arrested, by reason of the sector gear reaching the limit of its movement and starting back in the opposite direction, the idler disk'40, by its momentum, will tend to continue in rotation and will lift the point of the pawl or I 4 dog 37 out of engagement with the teeth of the ratchet disk 38. When the pawl-carrying disk is rotated in the opposite direction by the movement of the sector gear 30 on its return thrust, the idler disk will be moved backward therewith. When the pawl-carrying disk 36 and sector gear 30 have reached the limit of their movement in the backward direction the idler disk 40, by its tendency to' continue in motion, will throw the poin'tof the (log or pawl 37 down against the teeth of the ratchet disk 38, Upon the next forward movement of the sector gear'30 andpawbarrying disk 35 the ratchet disk 38 will,- of course, be carried forward The ratchet disk 38, shaft 28and rollers-14, 15 and 24 are thus given an intermittent movement in the direction to carry the paper into the niachine. be-

. tween the

rollers

14 and 15, and todrawjthe-same from the machine between the

rollers

15 and 24.

In some cases it is desirable that the web be moved forward by the

rollers

14, 15 and 24 aftcr'each printing operation, or, in other words, twice during a com- 'plete revolution of the cylinders 8 and 11. This would be the case when, as hereinabove pointed out, it was not (lr sired to print twice at the same point in the length of the web, either upon one side of the same in different colors or upon opposite sides thereof.

As shown the gear 34 keyed to the shaft 33, is adapted to revolvet-wice to each revolution of the gear 9 with which it meshes, and as the latter revolves with one of the cylinders, it is evident that the variable crank 32, carried by the shaft 33, will actuate the 'pitman 31 and'sector gear 30, twice during each revolutio n of the cylinders. The

rollers

14, 15 and 24 are thusmade to pull the web along after each printing operation. When however, as is more often the case, it is desired to print twice upon the web at the same point in its length the means that are adapted to be 'set so as to cause the rollers 14,- 15 and 24- to move forward after alternate printing operations, or, in other words, once to each rotation of the cylinders, may be described as follows: The star wheel 43, (Figs. 1 and 6), is adapted to be struck and moved forward a' distance equal to that between two of its points, at each movement in one direction of the sector gear 30 by a pawl 44, carried by said sector gear 30; Upon one side of the star wheel 43 is a face cam 45 rotatingtherewith.v This face cam 45 is formed with a wave-line face, and

a roller 46 is adapted to ride upon this face (Fig. 7)." The roller 46 is carried by a sliding] outward1y-springpressed rod 47. This rod 47 carries a disk 48 which is adapted to be moved toward and away from the ratchet disk 38 by the reciprocation of the rod 47 within its bearings. The depressions and elevations upon the face of the cam 45 are so spaced ardund the latter that alternate movements given thereto by the contact of the pawl '44 with the points of the star wheel 43, will move the rod' 47 and disk 48 away from the ratchet disk 38 against the thrust of the spring 49, the disk 48 :being returned to engagement with the disk 38 during the interval while the 'pawl 37 is held 130 up by the idler disk 40. Whenever the disk As has. come into contact with theside of the ratchet disk 38, the point of the pawl 37, which is somewhat wider than thethickn'ess of the ratchet disk 38, will ride upon the edge of the disk 48, the diameter of which is equal to, or greater than, that of the line of the points of the teeth of the ratchet disk 38. The ratchet 37 is thus intermittently prevented from dropping into the notches between the teeth of the ratchet disk 38. It will be seen that by this means the ratchet disk 38, shaft 28 and

rollers

14, 15 and 24, are thus caused to rotate after each alternate forward movement of the sector gear 30, and as this sector gear, as above pointed out, is given a forward thrust twice during each revolution of the printing cylinders, the web will be moved by these rollers once only during each revolution of the cylinders, when this part of the machine is in operation. When it is desired to set the machine so that it will move the paper forward after each printing operation, or twice during a revolution of the cylinders, the pawl 44 will simply be loosened and moved around on its pivot into such a position that it will not engage the teeth on the star wheel 43. 4

The web, after passing out between ,therollers 15 and 24, goes to the. sheet-severing device, (Fig; 9),

which comprises an oscillating blade 50, a stationary blade 51, and means for oscillating the movable blade 50 past the edge of the stationary blade during the interval between the forward movements of the web.

'lhebladje50 is secured to the lower side of a substantiallysemi-cylindrical oscillating member 52. This member 52 is provided with extended ends 53 and 53 forming trunnions, adapted to rest in suitable hearings on the frame of-the machine.

other and parallel to the upper cdgc oi. the blade 51.

The result of this arrangement of the parts being that one end of the blade will pass the edge of the vertical blade 51 slightly ahead of its opposite end.

Projecting downwardly from the trunnion 53 and 'secured' thereto is a crank having a pivotal connection with one end of a comiecting-rod 56. The opposite end of this connecting-rod 56 is provided with a cam-following roller 57, adapted to travel in the groove of a box-cam 58. (Fig. 3 The box-cam 58 is carried by the gear 5) and-revolves once to each revolution of the-cylinders 8 and 1]. There is thus given to the sheet-severing device amovenu-nt after each alternate printing operation, or, by the substitution for the cam 58 of the tu 'o-throw cam 58 shown in Fig. 3, this sheet-severing device may be made to operate after each printing operation. This latter method is sometimes employed when single-impression work is .being executed. The blade 51 is preferably made slightly ilexible so that it will always bear with a slight yielding pressure against the edge of the oscillating plate 50 whereby a clean sharp cut is assured.

- bracket Adjustment of the movable blade 50 toward and away from the stationary blade 5] is made by loosening the screws 54. These screws pass through slots in the 52", which carries the bearings for the trun nions 53 and 53". By turning the screw 50 iuor out the bracket and knife carried thereby are moved toward or away from the stationary knife, the screws 54% lu-ingtightened again after the proper adjustment has been secured. i

Eachof the inking deviceswith which the machine is provided is adapted to ink its own plate and to have its plate-inking rollers moved away from the line of the printing surfaces of the various plates at the proper period in the rotation of the cylinders 8 and 11, to-ca-use these plate-inking rollers to miss the plates which they are not designed to ink. In each of these inking'devices 59 designates an ink fountain of the usual form, having a fountain roller 60 forming one of its sides, and

- the inclined plate 61 iorming the bottom of said foun- Pain and in contact with the bottom of the roller 60.

The roller 60 is given a step by stepmovement by the following described mechanism; On the shaft of the roller 60 is secured a' ratchet wheel 62, (Fig.4), en-

gaged by a pawl 63, mounted on the pawl-carrier 64, the

latter oscillatingtwith the arm 65, one end of which is pivoted to the outer end of the link 66, the opposite 'end of the link 66 being pivoted to the side of the. gear 6, at point slightly removed from the center of rotation of the same. As the gear 6 rotates the link 66 and arm 65,- by their movement, cause the pawl-carrier 64 to .oscillate back and forth, the 'pawl 63 carried thereby engaging the teeth on the ratchet disk 62 when said pawl-carrier said teeth when the ratchet is moving in the opposite direction, the roller 60 thus being given a step by step movement in one direction and the ink'being drawn from the fountain by this movement in the usual manner. A du'ctor roller 67 is oscillated back and forth hetwcen the roller 60 and a steel distributing roller 68, alternately taking ink from the fountain roller 60 and placing it upon the distributingroller 68. This is accolnplished by the movement of a cam-roller 69* runf ning in a box-cam 69 upon the end of the cylinder 7 opposite that to which is secured the gear 6. This camroller 69 is carried upon one end of a lever 70, the latter being pivoted intermediate its ends, and having pivoted to'the outer end thereof, a link 71. The outer end. of the link 71 is connected with a lever-72,,the latter being mounted upo'n the end oi'a'rock-shaft 73.

Secured to the shaft 73 near each of its ends, is abellmoves in: one direction, and riding over crank lever 74. These levers 74 have bearings for the ductor roller 67/ The oscillation of the lever 70, by the movement of the cam roller 69" in the groove of the cam 69, is transmitted through the link 71, lever 72, rock-shaft 73 and lever 74, to theductor roller 67 causing the latter to oscillate between thefountain roller 60 and the distributing roller 68. The distributing roller 68 is constantly revolved by a gear 68 upon the shaft of this roller and a pinion 68 between the gear 68* and the gear 6. i H

Rotating in contact'with'the roller 68 are the plate; inking or form rollers 75 -and 76. These rollers are adapted to remain in contact with the distributing roller 68 at all times, but to move around said distributing roller toward or away from each other and into and out of engagement with the printing surfaces upon the cylinders. A suitable boss 77 is arranged at each side I of thermachine and forms a part of the frame. These bosses form bearings for the roller 68 and are also each adapted to provide bearings or fulcrums' for a pair of

lovers

78 and 79. These levers, pivoted upon the bosses 77, cross eachother. -A link 80 connects the outer end of the lever 78 with a bell-crank lever 81, the

latter being secured on the shaft; 73; The opposite end of the lever 78 carries theform-roller 76, Similarly the outer end of the lever '79 .is connected by. the link '82 with a bell-crank lever 83, the latter being fast on theshaft 73 and the form-roller 75 is carried by the inner "end oithe lever 79. Oscillating motion is transmitted from the cam-roller 69%, running in thegroove of the.

cam 69, through thelever 70, link 71 and lever 72, to the shaft 73. From this point motion is imparted through the bell-

cranks

81 and 83, links 74 and 82, tothe levers 78 and 79. The

rollers

75 and 76 carried by these

levers

78 and 79 are, therefore, given a movement toward and away irom' the plate-carrying cylinder simultaneously.

The cam-rollers 69 are so disposed in the groove of the cam 69 as-to receivesnovement and to impart the same to the'movable rollers of the inking devices at the proper time, so that each plate will be inked by its own set of inking rollers, and these rollers will miss the plate upon the opposite side oi the cylinder.

"It is necessary to vary the point at which the web is cut between two printed impressions whereby the im- 1 pression may be located upon the printed sheet r'esulting fromthe operation ot the machine. This re sult is-accomplished by a simple methodr which consists in varying the length of that portion of the Web which is between the printing point of the press and the sheet-severing device. A. simple and convenient method of so varying the length of this portion of the web is shown herein and consists in making the upper roller 22, upon the web-carrying gate, vertically adjustable upon the posts of said gate. To this end 1 form the upper ends of the

posts

19 and 19* with a series of rack-teeth which are engaged by the teeth of a pinion 84, this pinion being rotated by a. hand-wheel 85, so as to niove the bracket 86, which carries the roller 22, pinion 84 and hand-wheel 85, up or down on the post. A set screw 87, adapted to be tightened against the post, prevents the movement of the bracket 86 along the post after the same has been adjusted to proper position.

I claim:

1. In a web-printing machine, the combination of intermittently operating means for drawing the web into said machine, and continuously-rotating, printing means adapt ed to intermittently print upon the web, said first-named means being also adapted to draw the web from the mzr chine and arranged to operate during the interval between printing operations.

:2. In a web-printing machine, the combination of coir tinuously-retating, printing means adapted to intermittently print upon the web, and means for intermittently feeding the web to the machine, said means being arranged to operate between two successive printing operations, and adapted also to draw the web from the machine. said last-named operation occurring said web-feeding operation.

l. in a web-printing machine, the combination of a webi'eeding device adapted to intermittently feed the web to the machine, means for varying the len th of web fed to a said machine by each operation of said feeding means,

said feeding means being arranged to simultaneously withdraw a leugthof web equal to the length fed to the machine, and rotary, printing means adapted to act upon said web intermediate said web-feeding and withdrawing means between successive operations of said web-feeding device. I I

4. In a rotary printing machine, the combination with means for intermittently" feeding the web into the machine, of means for simultaneously withdrawing an equal length of the web, and means for supporting a portion of the web and adapted to move sucl'iportion through the printing point of said printing machine and to return said portion to position for a second impression while withdrawing devices are idle.

5. In a rotary web-printing machine, the combination of a continuously-rotating segmental impression surface, a c mtinuously-rotating segmental printing surface, said printing and impression surfaces timed to oppose each other at regular intervals, means adapted to feed a predetermined length of the web into the machine while said impression and printing surfaces are out of opposition with each other, and at the same time to draw from the press an equal length of the web, and means adapted, while said segmental surfaces are in opposition, to draw a portion of said web between said surfaces for the reception thereon of the printed impression and to return the same for another impression while said impression and printing surfaces are out of opposition.

6. In a web-printing machine, the combination of a pinrality of rotary printing surfaces, a rotary impression surface, means adapted .to carry a portion of the web 'through the printing point when one of the printing surfaces is opposed to an impression surface and to return-said portion of the web for another impression while said printing snrface is out of opposition with the impression surface, said means being adjustableto vary the distance between the printing point'and the discharge device whereby the impression may be located upon the printed sheet resulting from the operation of the machine.

7. In a web-printing machine, the combination of a plurality of rotary printing surfaces, a rotary impression sursimultaneously with I said feed and .through the printing point while said face, means adapted to carry a portion of the web through the printing point when one of the printing surfaces is opposed to an impression surface and to return said portion of the web for another impression while said printing surface is will f opposition with the impression surface, means adapted to cross-cut the web and means to adjustabiy y the length of the portion of the web between the printing point and said cut-off means, whereby the printed impression may be located upon the printed sheet resulting from the operation of the machine.

In a web-printing machine, a plurality of rotating printing impression surface, an intersurfaces, a rotating miiteutly operating feeding device for said machine adapted to feed a determinate length of web into said machine, an intermittently operating discharge device adapted to 0pcrate simultaneously with said feed device and to draw from the machine the same length of'web, the rotating printing surfaces adapted to engage the web while the feed and discharge devices are inoperative, and suitable means for moving a portion of said web through the printing point while one of said printing surfaces is in contact with the web.

1). In a webprintiug machine, rotating printing surfaces adapted to engage the web at regular intervals, means carrying a portion of said web and adapted to move same through the printing point during each printing operation and adapted to be set so as to return said portion of the web for another impression a predetermined number of times whereby successive impressions may he placed upon the web at the same point in the length thereof.

1' In a rotary"web-printing machine, the combination of a cylinder carrying a segmental printing surface a cylinder carrying a segmental impression surface, said'cylin- 11ers rotating continuously-and with the same peripheral speed, said printing and impression surfaces so disposed upon the cylinders as to oppose each other at regular intervals, means adapted to carry a portion of the web through the printing point at a speed equal to the peripheral speed of the printing surfaces while the impression surface and printing surface are in opposition, whereby said web receives an impression, and means adapted, when said impression and printing surfaces are not in opposition, to move said portion of the web back to position for a second impression at the same point in the length of the web.

11. In a rotary web-printing machine, .the combination of a plurality of rotating impression surfaces, a plurality of rotating printing surfaces, said impression and prinu ing surfaces timed to automatically oppose each other at regular intervals, and a web-feeding device adapted to be inoperative while a printing surface and an impression surface are in opposition with each other and to feed a predetermined length of the web into the machine during the interval between two successive printing operations.

12. In a rotary web-printing machine, a pair of cyliuders adapted to rotate with the same peripheral speed, each of said cylinders being provided with a plurality of plate-carrying surfaces adapted for the interchangeable attachment thereto of printing or impression surfaces, and means adapted to carry, a portion of the web through the printing point while a printing surface upon one of said cylinders and an impression surface upon the other of said cylinders are in opposition and to return said portion while said surfaces are out of opposition for a second impression at the same point in the length of the web.

13. In a rotary web-printing machine, the combination of continuously-rotating cylinders eachhaying' a plurality of surfaces adapted for the interchangeable attachment thereto of printingor impression plates, and so disposed around the cylinders that one of said surfaces upon each of the cylinders will be in mutual opposition at regular intervals, means adapted to carry a portion of the web surfaces are in opposition while said means adapted to position and to return to its original surfaces are out of opposition, and draw from the machine a predetermined length of the web. said last-named means being adjustable so as to permit the same to operate either after each operation of said first-named means or after alternate operation of said lli'StJlmllUtl rieans as desired. 7

offltimes, and a separate inking either upon every downward movement of said carryingmeans or upon every alternate downward movement of the same.

In a rotary web-printing machine, the Combination of means for feeding a predetermined length of the web into said machine and simultaneously drawing from said machine an equal length of the web, and rotary printing means adapted to automatically act upon said web at a point'intermediate the ends of the portion of said web within the machine while said feed and discharge devices are inoperative.

16. In a rotary web-printing machine, the combination with'afpair of continuously-rotating cylinders, of a pinrality of printing plates carried by said cylinders, an impression surface adapted to oppose each of said printing plates-a plurality of inking devices, means for causing e" ch of said printing devices to ink one only of said plates, and means'adapted to support a portion of the length of the web and adapted to carry said portion through the pi intingpoint while one of said printing plates is in opposition to an impression surface, said means adapted to return said pdrti'on' of the web to position for the reception thereon of another impression a predetermined number of times whereby successive impressions in diiferent colors may be made upon said web at the same point.

1.7. In a rotary web-printing machine, the combination f a plurality of rotating printing plates, an impression suri ace adapted to oppose hers being so arranged that all of said printing plates have a common printing point, means adapted to support a por- Iii)" of the length of the web, said means adapted to carry said portion through said printing point' a desired number I device for each of said plates udap ted to ink its corresponding plate whereby a plurality of printed, impressions may be made upon the web at the same point in the length thereof.

18. lna web-printing machine, the combination of a cylinder carrying a plurality of segmental printing surfaces, a cylinder carrying an impression surface, said cylinders rotating continuously and with the same peripheral speed, said impression surface and printing surfaces so disposed upon the cylinders as to oppose each other at regular intervals, means adapted to-carry a portion oftiie web through the printing point'ata speed equal to the peripheral speed of the printing surfaces while an impression surface and a'printing surface are in opposition, whereby adapted, when said impression and printing surfaces are not in opposition; to' move said portion of the web back to position for a second impression at the same point in the length of the web. Y

1.). in a wel mirinting machine, a combined feed and discharge mechanism comprising an intermittently 'rot Ced roller, a second roller rotating with the same peripheral speed as said iirst-11amed roller and in contact therewith. live web entering the machine between said first-named roller and said second-namcdroller, and a third roller contacting, with said first-named roller and also rotating with the same peripheral speed as the first-named roller. the paper being discharged from the machine between said .iirst-nained roller and third-named roller, and means adapted to print upon said w w during an interval between movements of the intermittently rotated roller.

lit). in a printing machine, combined feed and take-off illltll iiliisill coiiipris'ing an.intcrmittcntly rotating roller, a second roller rotating in contact with said first-named roller and with tlie'saiiie peripheral speed. the paper web bcing drawn into the machine between said first named and second-named rollers, and a third roller also all of said printing surfaces each of said plates, said inem-" said web receives an impression, and means rotating in contact with said first-named roller and at the some peripheral speed, the web being drawfi from the machine between said first-named and third-named rollers and discharged from the machine thereby, combined with a plurality of printing surfaces; and means for causing to print successively upon the web at the same part of its length during an interval between movements of said rollers.

21. In a web-printing machine, the combination 'of three intermittently rotating rollers arranged in tandem and rotating with the same peripheral speed, the web entering the machine'between two of said rollers and leaving the machine between two of said rollers, and a rotating cylinder carrying a plurality of printing surfaces adapted to successively print upon the web at the same part of its 'lengtl1 ,.said rollers and printing means being constructed to operate alternately.

ZZZ-In a web-printingmachine, the combination of a plurality of rotating printing surfaces adapted to engage the web at regular intervals. :1 pair of rollers, one of said rollers being at each side of the printing point, said rollers being parallel and moving simultaneously to carry a por- -tion of the web through the printing point during a printing operation and to return the same for another impression between two consecutive. printing operations, a webcutting device at the discharge end of the machine, and means for adjustably varying the distance between said rollers, whereby the length of that portion of the web which is between the printing point and the cutting device may be varied so as to locate the point at which the web is out between two adjacent impressions.

23. In a rotary weh printing machine, the combination of a rotating cylinder carrying a plurality of printing surfaces, means for carrying a portion of the web past said cylinder a plural number of times. so tl iatsuccessive impressions are printed upon the same portion of the web. and an independent inking device for each of said printing surfaces, each of said inking devices comprising a pair of crossed levers pivoted at their crossing point, each of said levers hearing a form-roller, the opposite end of eachof said levers having connected therewith a link, a rock-shaft,

a pair of levers secured to said rock-shaft and having each an end connected with one of saidlii'iks, and means for oscillating said rock-shaft. I

24. In a rotary web printing machine, the combination of a rotating cylin'derbearing a plurality of printing surfaces, means for carrying a portion of the web through the printing point of the machine a plural number of times, so that successive impressions may be printed upon the same part of saitF'wcb, a cam rotating with said cylinder. a cam follower corresponding to each of said printing surfaces and adapted to engage said cam, a

rock-shaft corresponding to each of said cam followers and adapted; to be rocked by the movement of the same, and

one or more form-rollers connected with each of said rock-shafts and adapted to be moved toward and away from the printing surfaces by movement of the said rockshaft, each of said cam followersheing so located as to cause its corresponding forin-rollers to engage one only of said printing surfaces and to miss the others of said printing surfaces. Y

of a rotating cylinder bearing a plurality of printing surfaces, a web-carrying device constructed to carry a portion of the web through the printing point of the machine a plural number of times and thereby to cause said printing surfaces to successivelyengage the web at the same part of its length a rock-shaftcorresponding to each of l r I I I In a rotary wcb printing machine, the combination said printing surfaces. one or more form-rollers connected with each of said rock-shafts and means rotating with said cylinder and adapted to impart to each of said rockshafts movement at the proper time to cause each of the form-rollers to ink one only of said printing surfaces and to miss the other of said printing surfaces.

26. In a rotary web printing machine, the combination of a. rotating cylinder bearing a plurality of printing surfaces. said printing surfaces being adapted to print successive impressions upon the same part of the web, a cam rotating with said cylinder, a cam follower correspond ing to each of said printing surfaces, a plurality of rockshafts each rocked by the movement of one of said cam followers, levers carried by each of said rock-shafts, a .rollihavingbearings in said levers. a fountain roller upon one side of said first-named roller, a distributing roller upon the opposite side of said first-named roller, said. first-named roller being adapted to be oscillated between said last-named rollers by the movement of the rock-shaft.

27. In a web printing machine, means for carrying into the machine a predetermined length of web and means for simultaneously drawing from the machine an equal length of web, means for printing successive impressions upon the same part of said web between the feed and take-oft devices, said printing means being adapted to work alter-. nately with-the feed and take-off devices, and a sheet-severing device, comprising the combination of a stationary blade, tin oscillating member having its axis, of oscillation parallel with the cutting edge of said stationary blade, and a blade carried by said oscillating member, said blade being arranged upon said oscillating member with its cutting edge inclined to the axis of oscillation of said dseillating member and arranged topass the edge of the stationary blade in cutting engagement therewith;

2 8. In a web printing machine, printing means adapted to print a pluralityof successive impressions upon the same part of the web, intermittently operating means "for feeding the web into and out of the machine, said printing means operating during an interval between two successive operations ,of the sheet-feeding device, and a sheet severingdevice therefor constructed to operate during the interval between two successive'movements of the web from the machine, said shetsevering device comprisl g in combination a stationary blade having a cutting edge andian oscillating blade arranged with its axis of oscillation parallel with the cutting edge of said stationary. blade and having acutting edge inclined to said axis of oscillation and adapted to engage the cutting edge of said stationary blade. I

29. In a web printing machine, means adapted to feed into the mahcinev a predetermined length of web and at the same-timefto draw from the machine an equal length of web, means for printing successive impressions'upon the same part of the web, said webfecding and web-discharge devices beingidle during the operation of the print ing means, and a sheet severing device, comprising a flexible fixed bla having a cutting edge parallel -with the eb, an oscillating blade having a cutting edge adapt 0 pass the edge of the fixed blade in'cutting engagement 'the1-ewitl1,-said oscillating blade having its cutting edge inclined to the cutting edge of the fixed blade.

30. In a web printing machine, wherein the web is intermittently advanced, means for printing successive im pressions upon the' same part of said web during the interval between successive forward movements of the web and a sheet severing device therefor, also adapted to operate during" an interval between successive forward movements of the web said sheet-severing device comprising in combination a fixed blade having its cutting edge parallel with the plane of the web, a movable blade having a cutting edge inclined to the cutting edge of the fixed blade and adapted to pass said edge in cutting engagement therewith and means for imparting movement to said movable blade during an interval between two successive forward movements of the web.

31. In a rotary web printing machine, a cylinder, a plurality of segmental printing surfaces carried by said cylinder, means whereby all of said segmental printing surfaces are caused to print upon the web at the same part of the length thereof, and means for: intermittently advancing said web, comprising a roller with which said web engages, a ratchet disk rotating with said roller, an oscillating pawl carrier, a pawl carried thereby and adapted to engage teeth upon said ratchet disk when moving in one direction, an idler disk loosely connected with said pawl and adapted by its inertia and momentum to lift and lower said pawl, and means adapted to be inserted beneath the point of said pawl while the latter is in its raised position and upon which the point of said pawl may ride without engaging the teeth of the ratchet disk. and means adapted to move said last-named means toward and away from the ratchet disk at determinate intervals.

3:2. In a web printing machine, the combination of continuously rotating printing means adapted to intermittcntly print upon the web, and means for intermittently feeding the web through the machine, said means being arranged to operate between successive printing opera tions and comprising a roller adapted to be engaged by the web upon each side of said roller and to advance the web into the machine by itsengagement with said roller upon.one side and to draw from the machine an equal length of the web by its engagement with the opposite side'of said roller and means for intermittently rotating said roller, said means comprising a ratchet disk rotating REUBEN D. COY. Witnesses 0'r'r0 R, BAnNnr r, G. P. ALLEN.