US988548A - Web-perfecting printing-press. - Google Patents

Description

P. P. 00X; .WBB PEBFEOTING PRINTING PRESS.

Patented Apr. 4, 1911.,

APPLICATION FILED HAY 6, 1910. 988,548.

6 {BEETS-SHEET 1.

' r flw M @w va a P. F. COX. WEB PEBFEGTING PRINTING PRESS.

APPLICATION TILED HAY 5.1910.

Patented Apr. 4, 1911.

, 5 BHHETHEEET 2.

w W e x P.,F. 00X. I WEB PEBFEOTING PRINTING PRESS.

' v 'APPLIOATIOH FILED HAY 5.1910, 4 988,548, Patented Apr. 4, 1911.

P. F. 002;. WEB PEBFEGTING PRINTING PRESS.

APPLICATION FILED MAY 5,1910.

Patented A r.4, 1911.

6 SHEETS-SHEET 4.

P. F. 00X. WEB PEBFECTING PRINTING PRESS. APPLICATION FILED MAY 5.1910.

Patented Apr. 4, 1911.

6 SHEETS-SHEET 5.

fi henlarged detail of the same 5 g'gwith the locking I ihaekwa-rd beforethe cylinders are raised for flu-iii return stroke; Fig. 6 is an end view'of UNITED STATES PATENT OFFICE.

PAIIL F. COX, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

WEB-PERFECTING PRIN TIN (ii-PRESS.

. Speciflcation of Letters ratent.

Patented Apr. 4,1911.

Application filed May 5, 1910. Serial 'No. 559,468.

6 have invented certain new and useful Improvements in Zeb-Perfecting Pr ntin Presses, of which the following is a specl cation, reference being had to the accompanying drawings. I

This invention relates to improvements in web-perfecting printing-presses, and particularly to that type of Web-perfect ng printing-presses in which the web is perfected by the cotiperation of stationary typebeds and traveling impression cylinders, and

the main object of this invention is to provide a new and improved operating mechanism for the impression cylinders, by means of which they are lifted after their impression movement 50 as to be free of the typebeds for their return movement.

More particularly still this invention relates to mechanism for raising and lowering and locking such cylinders in their impression position by a direct connection with and operation by the driving-rod by which the carriage carrying said cylinders is reciprocated.

This invention has for a further object the improvement in printing mechanisms of this character in sundry details hereinafter set forth.

In the drawings,-Figure 1 is a side eleyation of a portion of a press, showing the 5 improvement, and showing the cylinders at almost the end of their impression movement and about to be lifted for the return stroke; Fig. 2 is a side elevation, showin the im- ..,pression cylinders at the very em of their impression stroke and the cam just coming into engagement with the roller to lift them -for their return stroke, and the stop moved so as to permit this upwardmovement; Fig.

l 3 is a view of the some parts, showing the 1 2 cylinders lifted and just beginning the return stroke; Fig. 4 is an enlarged detail showing the impression cylinder operating mechanism inthe same, position as that in whichtheparts are in Fig. 3,; Fig. '5 is an parts as in Fig. showing the impression cylinders nearly ilt the end of their printing position and mechanism moved partly the parts shown in Fi 4 and in the position shown therein; and Fig; 7 is an end view of the same parts, showing the mechanism in the position shown in Fig. 5.

Referring to the drawings,-8 indicates the frame of a portion of a printing press having type-beds 9 10.

11 indicates a fly-wheel mounted on shaft 12 which is journaled in the frame of the 'machine rind driven by any suitable source of power (not shown).

13 indicates a crank-pin on the fiy-wheel 11, to which a connecting-rod 14 is pivotally connected at one end. The other end of the driving rod 14 is journaled on the stud 15, fixed on the body of a traveling carriage 16 which is slidingly mounted upon suitable guides, us 17, on the frame 8 so as to reciprocate backward and forward thereon a suitable distance to enable the impression cylinders to travel backward and forward the length of the type-bed.

18 19 indicate impression cylinders of the well-known type and description, which are mounted, respectively, upon. shafts 20 21. The shafts 20 and 21 are .rotatably mounted respectively, in cams 22 23 eccentrically of the centers of said cams. The drawings show only one side ofthe press, but it will be understood, of course, that the cams 22 and 23 are mounted one upon each end of the shafts 20 and 21, alike at each end.

24 25 indicate arm's which are secured to the cams 22 23 and preferably in tegral therewith.

hubs 27 at each end and are pinotally con-, 1 nected at each end with the outer ends of the arms 24 25 by means of studs 28. The eccentrics 22 23 are provided with journals 2.) 30, respectively, which are journaled, re-

spcctivcly, in suitable journnLboxee 31 32 on the carriage 16.

It will be obvious that by raising or lowering the links 26 the eccentries 22 23 will be rotated in their journals and the impression cylinders being eccenirically' mounted in them the cylinders will be raised or lowered accordingly. I 33 indicates a segmental rack, which is socured, as by bolts 33, to'the. outer end of the stud 15. i

34 indicates a mutilated gear,which is keyed upon a short sh aft 35 loosely journaled in the connecting-rod 14 so as to mesh with the segmental rack 33 as the connecting-rod 1 .rod 14 and having a cam-groove shown in Figs. 4-and'5.

moves up and down, whereby as theconnect lug-rod swings in the rotation of the flywheel 11 the mutilated gear will 36 indicates a cam secured on the other end of shaft 35 atthe inner side of connecting 37 best 38 indicates a roller 3 I link 26 and adapted as the cam 36rotates to enter the cam-groove 37 The cam-groove is so shaped that when the cam .is moved umvard by the upward motion of the conwring-rod 1 4 androtated contra-clockwise in the figures, the roller 38 as it enters it will move upward carrying with it the link 26, raising arms 24 and 25, rotating eccentries 22 and 23 contra-clockwise, and thus lifting both impression cylinders simultaneously. When theimpression cylinders are thus lifted about one-twelfth of an inch, the cani-groove is 'so shaped that, as the rotation of the cam continues and the carriage moves backward, .the cylinders are held in.

this position. .When-the cam moves in the other direction the cam-groove reaches a position almost at the 'end of the stroke, at which itv ceases to lift .the roller 38, after which, as the rotation continues, it moves the roller- 38 downward, carrying with it link 26, thus rocking arms 24 partially rotating cams 22 and-23 in a clockwise direction in the figures, the impression cylinders. 7 40 indicates an; arm on the head. of the conneetin -rod 14, to the upper end of which is pivotal y connected a link 41 which, at its and lowering other end, is pivotally'connected with slide-bar 42 sliding in suitable guides 43 on the frame of the carriage 16. The forward end-of the slide-bar 42 is suitably recessed to rovide a projecting end 44, which, as the 'sli e-bar 41 is slid forward,'-is adapted to engage with block 45 secured upon the side of the link 26. It will be obvious thatas the connecting-rod 1.4 is swung by the operation,

of the crank-pin and rotation of the flywheel 11 the arm 40 will be rocked backward,

and forward,- and this motion will he communicated by link41 to slide-bar'42, sliding itbackwardand forwardin its ways. Whenv ",1; 'fltheparts-are in-the'positionshown in Figs. 3, and '5, theend ofthe slide-bar 42 will rest prevent any upward 26 and'hnce any with,the-block 45 and movement of the link lifting of the impression upon and in contact cylinders during their printing impression.

. the drawings show 7 parts are, duplicated, it is believed it 'is not It will be understood; as mentioned above, that all the above-described parts are duplicated upon each side of the machine, but as only one side, and'asthe necessary to show the other side of the Ina chine.

It WillJOf course, be understood also be partially rotated back and forth in one directionand then in the other alternately.

ournaled upon the 25 downward der not to encumber the drawings w'ithunart and which form no part of my invention;

carry it are omitted; theinking mechanisms press which are well understoo and which,

drawings.

is as follows: I are there shown with the fly-wheel in such position that the crank-pin has almost reached the forward limit of itsmotion to the right. The impression 'cylinders, are

their printingor impression stroke, an still in their lowered position,

leave the same. the parts are brought into the position shown in Fig. 2,

into engagement with the cam-groove of cam the slide-bar has been moved' completely away from engagement with the sto look so that the parts may the carriage backward in the return "stroke,

34in the other or clockwise move the camzback inaclockwisedirection.

As this movement continues-andthepartsx reach a position which is about; a half a roller in the .cam-groove w necessary illustration of parts which are wellknown and understood to anyone skilled in the are omitted; and many other parts of the 1 The operation of the parts above described Referring to Fig. 1, the parts in. which the cylinders have reached the very end of their impression or a printing movement and are still in their f lowered position but with the roller entering .95 36 and j'ust about to be lifted. The stop on,

action of the connecting-rod 14 on carriage in their backward arts have made a quarter of a revolution eyond the position shown in Fig. 2, the piston rod, still driving v 115 begins to lower, causing the rotation of gear q direction-by its 1 action'on segmental rack 33 beginning to that as far as the printing press itself is concorned, many partshave been-omitted in ore. I

The web, for instance, and the, rollers ii" shown, would only'unduly complicate the shown, therefore, as almost, at the end-of I the slide-bar is shown as engaging stop 45,but d-rawn' somewhat back so as to almost be ready to As the movementcontinucs, .9

be: lifted. It will, of f course, beunderstoodthat during this swing,

traveling upward along the sons; to

revolution from that shown in Fig.1, the' return movement of the qarriage will be almost at itsend, 'andhthe" os'ition of the.

ilbe such that the rollerwill be beginning to be lowered. When the parts are in a position of. about" half a revolution beyond the position shown in Fig. 3, the lowering of the connectin rod and consequently-of the cylinderswi lsame time this downward swing of the connecting-rod will have swung arm 40 forward, bringing the slide-bar over the stop 45 and preventing any upward movement of they impression cylinders. The impression cylinders, therefore, in their lowest or printing position and locked in that position, travel forward over the type-bed to make the impression. The cam 36 will have been completely swung away from the roller 38, but the cylinders will be prevented from rising by the stop aforesaid. After the link has reached its lowermost positionthat is to say, about three-quarters of a revolution from the position shown in Fig. 1the parts will begin to move in the reverse direction until they have reached the position shown in Figs. 1 and 5, when the operation is repeated. It will thus be obvious that while the forward and backward movement of the connecting-rod reciprocates the carriage, theswing or oscillation of the connecting-rod on its pivotal connection with the carriage, caused by the fact that it is driven by a crank, isntilized directly to effect the rise and fall of the impression-cylinders. This swing or oscillation is also made use of to actuate the locking and unlocking mechanism by means of which the cylinders are locked in their printing position during the whole of the movement that makes the impression, and are unlocked at the end of such movement to permit of their being raised for their return movement. I am enabled, therefore, by my invention to do away with more or less complicated mechanism hitherto employed for this purpose and to directly make use of the oscillation or swing of the driving or connecting rod about its piv otal pointon the carriage caused by the crank movement.

That which I claim as my invention, and desire to secure by Letters Patent, is,

1. In a printing-press having a traveling impression-cylinder, in combination'a crank, a driving-rod connected at one end to the crank and adapted to reciprocate said cylinder, and mechanism operated by the swing of said driving-rod to raise and lower said impression-cylinder.

2. In a printing-press having a traveling impression-cylinder, in combination a crank, a driving-rod connected at one end to the crank and adapted to reciprocate said cylinder, and mechanism operated by the swing of said driving-rod to lock said cylinder in 1 printing position.

into printing position and move said. cylin- 3. In a printing-press having a traveling one-end to said der out of printing position for its return' movement, and means operated by the swing of said driving-rod to lock said cylinder.

while in printing position.

4. In a printing-press, in combination, a-

frame, a driving crank, a carriage slidingly mounted on said frame, an impression cyllnder mounted on said carriage, a driving rod connected at one end to said crank and at the other end to said carriage, and mechanism operated by the swing of the driving-rod to mechanism operated by the swing of said driving-rod to raise and lower said impres sion-cylinders and lock them in their printing position.

7. In a printing-press, the combination witha frame, a driv'ingcrank, a carriage slidingly mounted on said frame andimpressiolrcylindcrs mounted on said carriage, of a. driving-rod connecting said crank to said carriage for reciprocating the same, and mechanism automatically operatml by the swing of said driving-rod to lock said cylinders in printing position and automatically unlock them at the end of the printing movement.

8. In a printing-press, the combination with a frame, a driving-crank, a carriage slid'ingly mounted on said frame, eccentrics mounted on said carriage, and impressioncylinders eccentrically journaled in said cccentrics, of a driving-rod connecting said crank to said carriage for reciprocating the same, and means operated bysaid drivingrod to work said eccentrics and raise and lower said cylinders at suitable intervals.

9. In a printing-press, the combination with a frame, a driving-crank, a carriage slidingly mounted on said frame; eccentrics mounted on'said carriage, and impressioncylinders eccentrically journaled in said eccentrics, of a '(jlriving-rod coi'mectin'g said crank to said carriage for reciprocating the same. arms on said eccentrics, a link connecting said arms, a roller on said link, a cam adapted to engage said roller and raise and lower said link'tooperate said eccentric In a printing-press, the combination with a frame, a driving-crank, a carriage slidingly mounted on said frame and impression-cylinders mounted on said carriage,

of a dr ving-rod connecting said crank to said carriage for reciprocating the same,

means, and a slide-bar operated by said driv- 10 ing-rod and adapted to engage said stop when said cylinders are in printing position v and to lock them during their printing movement.

. PAUL F. COX. Witnesses: E

CHARLES E. PICKARD, W. H. DE BUSK.

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