US332519A - Web-perfecting printing-machine - Google Patents

Description

(No Model.) 4 sheets sheet 1.

J. T. HAWKINS.

WEB PERPEGTING. PRINTING MACHINE.

No. 332,519. Patented Dee.'15, 1885.

N. PETERS, PhokrLAhcgranhor, wnhin mn. D. C.

(No Model.) 4'Sheets-Sheet 2.

J. T. HAWKINS.

WEB PERFEGTING PRINTING MACHINE.

No. 332,519. Patented Dec. 15, 1885.

llmlvmlor. I I 4 AllarnqyJ mas Photn-Lilhngraphar, Wnhinglon, D. c:

(No Model.) 4 sheets-slim a. JPT. HAWKINS.

WEB PERFECTING PRINTING MAUHINE.

Patented Dec. 15, 1885.

jy zveniam Ailarneys N 'PETERS Pholo-Lilhogrzpher. Wilmin ton, DC.

(No Model.) 4 Sheets-Sheet 4.

J. T. HAWKINS.

WEB PERFEGTING PRINTING MACHINE.

No. 332,519. Patented Dec. 15, 1885.

N PETERS. PhawLnhn -mn. Wznhillglon, D. c.

UNITED STATES PATENT Urrrcn.

JOHN T. HAWKINS, OF TAUNTON, MASSACHUSETTS.

WEB-PERFECTING PRINTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 332,519, dated December 15, 1885.

Application filed February 18, 1884. Serial No. 121,084. (No model.)

To aZZ whom, it may concern:

away and controlled,while the tail of the sheet Be it known that I, JOHN T. HAWKINS, a is conveyed and controlled by the rotary sheetcitizen of the United States, residing at Taunton, in the county of Bristol and State of Massachusetts, have in vented certain new and useful Improvements in -Web Perfecting Printing Machines, which invention or improvement is fully set forth and illustrated inthe following specification and accompanying drawings.

The objects of the invention are as below stated.

First. To provide for the employment of double the number of impression cylinders (shown in the application herewith filed by me, bearing the SerialNo. 121,083) printing from one web, the effect being to print double the number of perfected sheets from one roll possible by means of the arrangement shown in said application. It is evident that in the above-mentioned case-as the sheets are out before printing, and each sheet reversed immediately after receiving the impression upon one side, then printed upon the second side, and then delivered from the machineno more than two impression-cylinders can print from one web; or that, if room could be found on=a given type-cylinder for the employment of eight impressioncylinders, four rolls or webs of paper would require to be used; but in the arrangement of parts'shown in Figures 2 and 4 of the accompanying drawings it is provided that four sheets may be printed from one web of paper at each revolution of the type or form cylinderthat is, four perfected sheets to a revolution of the type-cylinder, as in Fig. 2, and eight perfected sheets to a revolution ot the type-cylinder, as in Fig. 4, in which latter figure two webs or rolls of paper are employed. This is accomplished while employing, principally, the methods shown in the abovementioned application (Serial No. 121,083) for reversing the sheet by printing one side of each sheet on the continuous web before cutting it into sheets, then cutting the web or webs and reversing each sheet before printing its remaining side.

Second. It is also the object of this invention to provide a more complete means of reversing the sheets by combining with the rotary sheet-reverser a conveyingcylinder, so that the head of the sheet shall be conveyed reverser, and to provide for said conveyingcylinder serving also as one of a pair of cutting-cylinders.

Third. It is the further object of this invention to dispense with grippers in the impression-cylinders by the use of a system of tapes for conveying the sheets after reversal.

In view of the general mechanism employed in such a machine having been fully illus trated in said application Serial No. 121,083. Figs. 1, 2, and 4 of the accompahying drawings are illustrations, only in outline, of longitudinal vertical sections through the machinedispensing with all detailssuch outlines being sufficientto illustrate thcinveulion herein claimed.

The invention consists of the parts and combinations of parts hereinafter described and set forth in the claims.

In the accompanying drawings, Fig. 1 is an outline horizontal vertical section through one-half, or nearly so, of Fig. 4 on an enlarged scale, showing the relative positions of the type or form cylinders, the rotary sheet-reverser and its cams. Fig. 2 is a similar longitudinal vertical section through a machine arranged for four impression-cylinders only. Fig. 3 is a view in plan of a portion of the top of the type-cylinder, showing the course of one of the margin-tapes, permitting of easy access to the forms for removal or replacement. Fig. 4. is a horizontal vertical outline section of the complete machine using eight impression-cylinders and printing from two rolls of paper. In these figures the sheet is first printed on one side, then severed from the web, reversed, and printed upon the other side. Figs. 5 to 9, inclusive, illustrate details of the same rotary sheet-reverser illustrated and described in applicationSerial No.121, 083, above mentioned. Tomake this case more complete in itself, however, a description of the parts constituting said rotary sheet-reverser and its mode of operation will be hereinafter given.

Referring to Figs. 5 to 9, inclusive, f are three or any number of plain wheels secured to a shaft, f. A spur-gear, f, the diameter of whose pitch-circle is the same as the outside diameter of the wheels f, is also secured IOO ' are journaled two gripper-shafts, f

t-o shaft f said shaft being jou'rnaled in the main frames of the machine A". The gear f engages corresponding'gears upon the respective sheet-controlling cylinders Hh, Figs. 1, 2, and 4, and upon the respective impressioncylinders B b. Journaled in the wheelsff is an oscillating gripper-carrier, g, Fig. 1, or G 9, Figs. 2 and 4. To the gripper-carrier 9 On one end of gripper-carrier g is secured a spurpini0n,f Upon a stud in the gear f runs freely an intermediate pinion, f. On the shaftf running freely, is a wide-faced pinion, f, gearing on one half its face with the intermediate'pinion,f. On ashort rock-shaft, f, (which is operated by means of a lever outside the frame A carrying a roller engaging a suitable cam, as fully described in application Serial No. 121,083, above mentioned) is secured to its inner end a sector-gear, f,

gearing with the other half of the face of the pinion f. On the pair of twin gripper-shafts f are secured-pairs of twin grippers f closing upon each other by means of the springs f". The hubs of each of these grippersf are so made as to form a stop, 2', resting upon the flat part of the grippercarrier 9, to prevent one of each pair of grippers f from following the other when either shall be opened, as hereinafter described, and as shown ati, Fig.

v 7. On each twin gripper-shaft f, outside of the'outer wheel, 1*, is secured a lever, f, each carrying a roller, f. To one ofthe main frames Ais secured a pair of stationary cams, f in position to engage the rollers f In Fig. l the twin grippersf" are shown, in full lines, in position to receive the tail of the sheet from between the tapes t and the surface of the controlling-cylinder it, one of the grippers f" being partially opened by means of one of the cams, f closing upon the under side of the sheet as the rollerf is running off said cam f Pursuing the course of the sheet-reverser c, as indicated by the arrow, until the roller f of the other twin gripper f comes in contact with the other carnf, as shown in dotted lines, the other twin gripper is about to release the sheet into the path between tapes t and f. Continuing further, the dotted lines show the position of the twin grippers when both are opened away from each other by the action of both of the. cams f' preparatory to being brought into position to grasp the tail of the succeeding sheet, as at first shown in full lines.

Referring now to Fig. 2, the several letters therein indicate the respective parts below mentioned; A, the form-cylinder; A A the forms therein; V, the roll of paper; B B b b, impression-cylinders geared to the form-cylinder A in the usual way; it B, inking-rollers; L L L L L L L L L, each a series of tapepulleys; P, P, and 19, leading or register rolls, over which the sheet or web is led in passing from one to the other of each pair of impression-cylinders; O", the sheet-reverser, carrying the twin grippers G; H, a cylinder carrying grippers H and H and sheet-cutting recesses S and S; K, a cutting-cylinder carrying a serering a sheet, in order to keep the head of the web in contact with the surface of cylinder H until the grippers H orH have closed upon it. Where the proportions of the parts will admit, the cutting-cylinder K may be made one-half the diameter of the cylinder H, in which case the knife K may remainsuf ficiently protruded at all times to enterthe grooves or recesses S S in the cylinder H, and thusdispenSe with mechanism necessary to protrude it only at each second revolution.

K and K leading-pulleys for the web or sheets. A series of three tapes, 15, run in line with the unprinted marginsof the web or sheets. A series of three tapes, 1, run in a The cutting-cylinder V line with tapes t. y The path of tapes 25, com'-.

mencing at L is upward to the leftover L, thence around L, L L, L and L thence downward in contact with type-cylinderA', thence to and partly around K", thencearound the sheet-reverser 0 around i'mpression-cylinder 1), around registerroll 19, around impression-cylinder I) and L to place of starting.

The path of tapes 1, commencing at L, passes to the left around impression cylinder b,

around register-r0111), thence around impres- I sion-cylinder b, thence around L and downward to point of starting.

The path of the web, as indicated by the broken lines, is as follows: Leaving roll V, it passes downward, receives its first impression between cylinders A and B, thence it passes around register-rolls P and P and receives another impression on the same side between cylinders A and 13. rolls P and P are so proportioned and placed that the cylinders B and B will print from the forms alternating in pairs of sheets. Thus the web will issue from between cylinders A and B printed wholly on one side, but from alternate pairs of forms. From this point it passes partly around leading-roll K and at the point of contact with cylinders H and K is cut into separate sheets by the cutting-cylinder K and The registerits knife K, immediately succeeding which the grippers H or H close upon the head end of the web and lift the tail of thejust' severed sheet from contact with cylinder H. Thence the severed sheet passes in contact with cylin'- der H- until it meets the sheet-reverser C", where the grippers G of the sheet-reverser O" seize" From this point the the tail of the sheet.

sheet passes around sheet-r'everser C until at the'point of contact of C with theimpressioncylinder 2) the tail of the sheet enters between tapes t and t, at which point the twin grippers G of the sheet-reverser 0 release the tail of the sheet, the head of the sheet having been previously released by the grippers H of the cylinder H, and the sheet remains suspended in the air at that point, as shown in Fig. 2. The sheet is further conveyed between tapes tand t until it issues from the machine. After entering between tapes 2. and t at the point of contact of the sheet-reverser C with the im-' pression-cylinder b the sheets receive their respective impressions on their reverse sides from alternate pairs of forms by means of the impression-cylinders b and b, the arrangement and relative positions of b Z) and 1) being the same as that of B B and P and P, except that but one register-roll, p, is used, and the path of the sheets is the length of two sheets shorter, so that the sheets issue from the machine between the guidefingers (Z with alternate pairs of sides uppermost, butprinted on both sides.

The several positions of the sheets before and after severance from the web in their progress through the machine are shown by the crosses numbered from 1 to 12. Thus the sheet from 1 to 2 is blank and will receive its first impression between form A"and impressioncylinder B. The sheet from 2 to 3 is blank and will receive its first impression between form A and impression-cylinder B. The sheet extending from 3 to 4 has been printed between form A and cylinder B; the sheet extending from 4 to 5 will be printed between form A and cylinder B; the sheet extending from 5 to 6 has been printed by form A and cylinder B; the sheet from 6 to 7 is held by the head by the grippers H of thecylinder H, and will be severed from the web by the cutting-cylinder K. The sheet from 8 to 9 has been released at its head by the grippers H of the cylinder H, and is being conveyed around, tail first, by the twin grippers G of the sheet-reverser O, and hangs freely in the air, as just released by the grippers H of cylinder H. The sheet extending from 10 to 1]. is being printed on its second side between form A" and impressioneylinder b. The sheet from 11 to 12 is being printed between form A" and impression-cylinder b. The sheets in this construction will issue at d, following .each other in pairs- -that is to say, two sheets issue with the sides uppermost printed from form A, then two with sides uppermost printed from -form A but all printed on both sides. The two outer margintapes are carried outward around pulleys L and L for the purpose of facilitating the placing of the form upon the form-cylinder A, as shown in Fig. 3. The center tape, 1, is not. so deflected, but runs straight across from L to L Referring now to Fig. 4, the several letters therein indicate the respective parts below mentioned. BB 1? B b b b b are impressioncylinders running in the usual journal-boxes in the main frames of the machine, and so placed as to permit of the interposition of one or more inking-rollers, R, between each two adjoining cylinders; R, inking-rollers receiving in the usual way the ink from the fountains placed near them in the space within' the tapes as led over leadingpulleys L for that purpose. The remainder of the inking apparatus is not necessary to be shown here. 1? l P P p p 19 1) are leading or register rolls adjustablyjournaled in the main frames for regulating the distance the web or sheet shall travel from the point of contact of one impression-cylinder with the type-cylinder to a similar point of contact of the next succeeding impression-cylinder; O, 0 each a cutting cylinder carrying the cuttingknives O 0,- G 0*, rotary sheet-reversers (such as described in Serial No. 121,083, above mentioned) carrying the twin grippers G and g, respectively; H h, cylinders, each carrying two sets of grippers, H H h If; L L L L L L L L L L L L L, each a series of tape-pulleys upon their respective shafts; S S s s, slotted recesses in the cylinders H and h for the reception of the serrated severing-knives G 0, carried, respectively, in the two cylinders C e; V a,

two rolls of paper from which the webs are fed to the machine. D d are each a series of guide-fingers to prevent the issuing sheets from following the tapes. Theimpression-cylinders, form-cylinders,sheet-reverser, and cutting and conveying cylinders Hh are geared together in the usual way. The power is applied to the main gear-wheel upon the axis of the form-cylinder A in any wellknown way. Ff are each a series of tapes, and Ff each a series of holes through which air-jets are forced, as hereinbefore described, and shownin K, Fig. 2, and for the same purpose. A series of three tapes, i, run partly in contact with the typecylinder A. the center one of which is used only when the sheet to be printed is in quarto form, in which case there will be an unprinted strip in the middle of the web orsheets in the direction of the webs path through the machine. There will also be an unprinted margin at each edge of the web or sheets in the same direction. The tapes 2. run upon these unprinted strips or margins between the web and the surface of the type-cylinder, where they touch the latter, the ink-plate being sunk at this point for their reception and to prevent their beinginked by the ink-rollers. of the outer margin-tapes 15, beginning at the bottom of Fig.4 and passing to the right, will be around L, upward over impressioneylinder 1), thence in contact with form-cylinder A over b, thence around 1), around sheet-reverser ciback around imprcssioncyli-nder b, between the latter and the form cylinder A, thence around 12, around impression-cylinder b between the latter and form-cylinder A, upward over L thence over L, around L and L thence around L", L and L, downward over impression-cylinder B, between the latter and.

form-cylinder A, thence in contact with form;

The path cylinder A, around under impression-cylinder B, thence to and around L, around sheet-reverser O, thence under impression cylinder B, between it and form cylinder A, thence downward around P and impression-cylinder B downward to and around L to place of starting. The three tapes t are deflected from contact with form-cylinder A at the bottom by the leading-pulleys L L to give room for ink-fountains and concomitant inking ap pass around L thence around sheet-reverser 1 0 around B thence around P thence around impressiolrcylinder B to and around L to point of starting, being in contact with tapes tfrom C until they reach L. The path of tapes f is similarly: Commencing at L*,

passing downward, they pass partly around sheet-reverserO", around impression cylinder b around 1)", around impression-cylinder b to and around L to point of starting, being in contact with tapes if from c to L Tapes t andf and t a rd F would of course be in contact through the distance mentioned, upon the supposition that no sheet was between them. With the sheetspassing through the machine, however, it will be understood that the said sheets are between the two series of tapes and being conveyed by them. From the above, also, it will be understood that there are but three tapes in either of the series F and f corresponding in positions to the tapes t. Following the web from the roll V, it passes downward between impression-cylinderB and form cylinder A, around register roll P, around impression-cylinder B, around register-roll P and register-roll P thence between cylinders O and H, where it is severed into sheets. Immediately after the severing from the web the grippers H or H come into position to close upon the head of the web, and in doing so serve as lifter-fingers for the tail of the preceding and just severed sheet, holding it up from contact with cylinder H, so that the twin grippers G may grasp it as they come into position. Thence it is conveyed partly around cylinder H until theztail is seized by twin grippers G of the sheet-reverser 0 at which time the grippers H or H", as the case may be, release it. The twin grippers G release the sheet as it enters between the tapes F and t, and it is thus conveyed between tapes F and t, around impression-cy1- inder B, register-roll P and impression-cylinder B and until its issue from the machine at D. In this arrangement of course it will be understood that the sheets which are print ed on their first sides by means of impressioneylinder B are printed on their second sides by means of impression-cylinder B and for one side printed by means of impressioncylinder B the other side is printed by means of impression-cylinder B and as the sheets are printed in either case on the first side head first and on the second side tail first the forms must be placed on the form-cylinder so that the one rotates head first and the other In the same way as above described the web from the roll '0 is printed and delivered from the top of the machine at d.

I do not herein claim the parts illustrated in Figs. 5, 6, 7, 8, and 9, as the same are claimed in my pending application Serial No. 121,083, herewith filed.

Having thus fully described my said improvements as of my invention, I claim 1'. In a web-perfecting printing-machine, I

the combination,with a rotary sheet-reverser, as 0 of a conveying-cylinder, as H,-carrying grippers, as H, constructed and arranged so as to close upon the head of the web and to lift the tail of a sheet as severed from said web from contact with said cylinder during the process of reversal of said sheet, substantially as and for the purposes set forth.

2. In a web-perfecting printing-machine,

3. In a web-perfecting printing-machine, in' combination with a form-cylinder, as A, a

series of impression-cylinders, as B B b b, and a rotary sheet-reverser, as 0 a series of' conveying-tapes, as t, running partly in contact with sunken portions of the type or form cylinder, and a series of tapes, as F, whereby the sheets, after being severed from the web, are conveyed through the process of being printed on their second sides, and the use of grippers in the impression-cylinders thereby avoided, substantially as set forth.

4. In a web-perfecting printing-machine, in combination with a type or form cylinder, as A, and a rotary sheet-reversing apparatus, as 0 a pair of impression-cylinders, as B B, and leading or register rolls, as P, P, and P, for printing the first side while in the web, and a pair of impression-cylinders, as B B and a leading or register roll, as P, for printing the second side after the sheets have been severed from the web and reversed, substantially as and for the purposes set forth.

JOHN T. HAWKINS.

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