US444412A

US444412A - Printing-machine

Info

Publication number: US444412A
Authority: US
Publication date: 1891-01-06
Anticipated expiration: 1908-01-06

Description

(No Model.) 5 Sheets-Sheet 2.

E. LIETZE.

PRINTING MACHINE 110.444,412. Patented Jan.6, 1891.

(No Model.) I 5 sheets-sheet 3.

E. LETZE,

PRINTING MACHINE.

110.444,412. Patented Jan. 6, 1891.

Fig. M m9. ff.

PRINTING MACHINE.

v110. 444,412. Patented Jan. 6, 1891.

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[111111311111111 [[I? l] l] UNITED STATES Parana Fria.

ERNST LIETZE, 'OF CINCINNATI, OHIO.

` PRINTING-MACHINE. M

' ys1?1*.c1rrcn'-rzto1st forming partv of Letterspratgnt No. 444,412, vdates. January e, 1891.

Application tiled June 3,1890.

To all whom it may concern:

Be it known that'I, ERNST LIETZE, a citizen o f theUnited States, residing at Cincinnat 1,v1n the county of Hamilton and State lof h10, have invented certain new and useful Improvements in Printing Machines; and I do hereby declare the followingto be a full,

clear, andexact description of the invention, such^as will enable others skilled in the artV to which it apperta'insto make and use the same. v

Y My invention consists in the improvements in printing-machines hereinafter to be more full)7 described and claimed. A Y

111. the drawings, Figure 1 is a side view "showing thefeed mechanism and the operating-cylinders only, the various s'ets of operating-cylinders being at their farthest distance apart. Fig. 2 is the same as Fig 1, the said o operating-cylinders being adjusted at their nearest point together. Fig. 3 is a diagram illustrating the path ofthe material around operating the detent.

the iirst set of feed and pressure rollers. Fig. 4 isa ldetail inl section showing the arrangemont of said first set of feed and pressure Vrollers. l Fig. 5 is an4 end View yand section showing the arrangement of feed mechanism. and pressure-rollers. Fig. 6 is a detailpf the feed-band. Fig. 7 is a detail side view showing the detentmechanism for the feed apparatus. Fig. 8 is a plan View cf a portion of the machine, showing the gearing. Figs. 9,

- 10, and 11 are details of the adjustable cam- Fig. 12 is a detail sideV vievrshowing the knives and the guide forV removing the perforated edges cut from the material, and Fig. 13 is a plan view of the n same.

on the web of material fed into the press isy 01net analiquot part of the circumference of 1n printing-presses ofthe.. general type` known as web presses it is desirable to have an arrangement of operating-cylinders which shall be adjustable relatively one to another in order toaccom modate themselves t to the printing of sheets of different sizes, and said adjustment should be possible without interfering with the gearing driving said *cylinders Vinasmuch .as it sometimes hap-l pens that the pattern or form to be printed the-operating-cylinder, it becomes necessary to have a feed mechanism which can be Serial No. 354,168. (No model.)

' stopped whire the blank pol-tion ofthe yiin- When the working portion of the cylinder comes up tothe point of tangency. It is also auism of the parts that the partly'or wholly severed sheets shall remain under control un- .til the moment of their delivery onto the ontlay-table, and to provide suitable apparatus for removingthose portions of the material trim-med from the finished sheets. To accomplish these objects andothers not specifi@ ally enumerated and to produce a printing mechanism which shall be' simple land adjustable in its construction and positive in the paratus herein described and illustrated, in which the feed mechanism, consisting of the endless bands 14, running over the pulleys l2 12, is similar to that described in the joint application'ofmysel'f and Henry Barth, tiled' June 3, 1890, Serial No. 354,093. As in the arrangementv described in said application, the continuousweb of material 9 comes from the roll 4, passes over the feed-roller 4.8, under the feed-roller a9, by which it is pressed `of the feed mechanism. It is then carried forward through the feed-

rollers

5, 5, 5", 5, 7, au'd'8, and the operating-cylinders 15, 1G', 15,16a,17, and 18, and the printed and Sepatable 11 ina pile lO. The two or more sets .of operating-cylinders 15 16 15 16 are provided with an inking apparatus.

of operating-cylinders would be employed if printing. Said cylinders are journaled in the adjustable carriages 3 (see Fig. J7 and have the form-rollers 23, the vibrating inkdistribut-ing cylinders 22,tbe riding rollers 21' 25 26, the dip-roller 21, and the ink-fountain 20, or

in conjunction therewith.` The carriages on which the pperating-cylinders 15 1615a 16a ings thereof, they being shown in Fig. 1 in their position farthest apart and in Fig. 2 in is to be printed upon the material. Motion der is passing, and which shall start oi again desirable tosc arrange the connecting mech-l onte the projections of the endless band HQ More sets.

more than two colors were to be used in are mounted are adjustable along the bear action of Aall its parts,'I have designed the aprated sheets are delivered uponthe/outlaylsome equivalent inking apparatus operatingst` roo their position nearest together, the adjustment varying according to the pattern-which.A

is transmitted from one of said pairs of operd atng-cylinders to another by means of the links shown in dotted lines, pivoted `toget her, and having their free ends pivoted tothe axes of the cylinders 15, 16, l5, 16, 17, and 18. Gears which have their axes coinciding with the points abourwhich these levers are pivoted are connected together by intermediate gears supported by the links, so that from the gear 53 on the cylinder 18 there is a continuous train of gearing 42 4b 44 to the gear 54 on the cylinder 16, and from there thc train 45 46 47 extends to the cylinder 16. rlhe web of material 9passes over the feed-roller 48 49 in the shape indi cated in Fig. 3, and is thereby smoothed and subjected to the proper tension before it is attached to the feed mechanism. The roller 48 is mounted on the pivoted arms 5l, which are adjustable by means of a bolt passing through the curved slot 52 in the standard, whereby the position of the roller 48 may be varied. The roller 49 and pulleys 12 12 are capable of axial adjustment by means of setserews in the well-known way, as' indicated in Figs. 4 and 5. The feed-band 14 is perforated so thatthe sprocket-teeth 12" may mesh therewith.

The detent mechanism forlthel feed-gear is illustrated in Figs. 7 and 8. -Motion being transmitted to the shaft 29, on which the gear29 is mounted, by means of the pinion 28, fast and loose pulleys 27 27a, and ily-wheel 40, we have the disk 58 rigidly keyed to said shaft. The disk 55, concentric therewith, is loosely mounted on the shaft, and revolves therewith only when sufficient pressure is exercised by screwing down the nut 57 to compel the disk 58 to transmitits motion through the leather packing-disk 56 to the disk 55. The disk 58 is made hollow at. 71, as shown in Fig. 8, and within the reservoir thus made oil is stored, which is fed through the openings 72-to the leather friction-disk. Under normal conditions, therefore, motion from the shaft 29EL is transmit-ted to the gear 30 therev on, and this-meshing into the gear y34, which is keyed on the shaft bearing the pulleys 12, drives the feed mechanism. If any obstruction to therevolution of the disk 55 is presented,

however, it/ will stop, theffriction of the leather disk being overcome. Such an obstruction is periodically presented by the detentlever 63,which is forced down by the spring 65 to engage the ratchet-teeth ofthe disk 55 when the cam which operates the detent mechanism will permit it. Said cam may be of any construetion which renders it adjustable; but the preferred form is that illustrated in Figs. 9 to 1,1, in which the cam-

plates

60 and 61 are adjustably held together by means of bolts, as clearly illustrated. Vhen said plates are fastened together, the beginning of the cam is by means of agradual rise y, (shown in Fig. 10,) while the termination of the cam is abrupt, as shown at x. The adjustment of the two camplates Aone upon the other will evidently regulate the time during which the detentlever may be incngagelni'int with the ratchetteeth on disk 55, as will be easily seen from Fig. 7. In order to give a quick action to said dctent-lcver, the block of steel 64, so arranged as to form a rectangular offset, affords The cylinder 17 is the knife-cylinder, havy ing one or more adjustable knives 19, which, when pressed against the incision-cylinder 18, make a transverse cut in the web of material 9 passing through the press. Said cylinders are of the same diameter as the'other operating-cylinders 15 16 15l 16, and by means the gears 38 37, tbe., these cylinders are caused to revolve at the same speed. If, therefore, the adjustable cam-platesbe so arranged that the distance from a: to y coincides exactly with the blank space on the printing# cylinders, it is evident that the feed mechanism` will stand still while said blank space is passing, and the succession of patterns upon the material will be continuous with no inter-` vening space between. l

In the feed-rollers 8 or in any equivalent f rollers are fixed the second set of rotary knives 41. The transverse knives 19 are so arranged that they do'not quite extend to the row of perforations formed by the projections on the feed-bands.. Consequently afl ter the material has 'passed said transverse knives it is still held together by the continuous edges and is under control of the feed mechanism. The rotary knives 41 are placed IOI sufficiently far inside of this row of perfora- Y tions to intersect the transverse cut-s made byl the knives 19, and yso separate/.the material into distinct sheets, while the continuous rib- Y bon formed bythe perforated edge'portions runs along with the feed-bands 14. The sheets are removed to the outlay-table 1l by any suitable apparatus of tapes or its equivalent,y

and to remove the perforatedtedges from the feedbands I employthe curved and bifurs cated guide 70, the split or bifurcated end of which straddles the line of projection of the feed-band yand vlifts the ribbon 69 therefrom. The guideV 70 is thenbent inthe form of a helix to a right angle, andthe waste portion of the'material isthereby led off at right angles to the line of travel of the completed sheets. Motion is transmitted to the pressure-,roller 6 by the pinion 36 meshing with the gear 34, Fig. 12. Motion is similarly transmitted by the pinions66,`meshing with gear 35, to the

pinions

67 and 68 on the rollers 8.

Motion is transmitted to the knife-cylinder 17 by the gear 38, meshing with the gear 53,

and to the printing or form cylinder 15a by the gear 37, meshing with the gear 54. In the' same way motion is given to the feed-

rollers y

48 and 49 by thepinins -i0 and 5.9 (sce Fig.

to the gear 53and I 8, to the gearY 34.

pattern being printed or equal to some multiple of that length. If the length, of the pat- =tern is an aliquot part of the circumference of these cylinders, then vthe stereotype-plateswill completely cover the surfaces of said cylinders, and all parts ofthe machine will run continuouslyfthe/de'tent 'mechanism being 1 thrown out of gear; Abut if the length ofsaid patternsis such that a'portion of each printing- -cylinder-Say one-tenth part-is left blank,l

then the cam-plates (illand l'61' 'are'so adj usted that the distance from a: to y will be one-tenth A part of the circumference of. said lcam-plate ing.

and equalto one-tenthsaid printing-cylinder. Consequently the detent `lL, act and the feed mechanism will .stopjvsliilethis blank tenth part of each operating-cylinder is pass- The pattern having thus beenT printed upon the continuous web in a regular succession of reproductions, the transverse knives 19 are so arranged as to 'cutbetween said patterns, and the material held together by the 70, while the sheets Letters Patent, is-

continuous-edges is'then fed. along to the rotary knives 4l, which are adjusted to the exact width. of thel pattern and cut out each separate and completesheet, the continuons ribbons formedv bythe perforated edges ofthe material passing o'ut through the guides are deposited upon .the outlay-table.

The advantages of myconstruction are evident from its adjustability-and simplicity of l construction and the ease with which the 'adjustment may be made without complicated calculations or `resort to tedious cut and try methods.

Having therefore described my invention, what I claim as new, and desire to protect by '1. In a machine for printing a continuous sheet, the combination of twoor morepairs of operating-cvlinders, the carriages in which said cylinders aremounted' being adjustable along the line of the continuous sheet, and flexible trains of gearing transmitting motion from one set of said pairs of cylinders to an-l other, substantially as described.

2. The combination of two or more sliding carriages adjustable with respect one to another, links which are pivoted one to another and tothe carriages, gear-wheels Whose axes coincide with said pivotal points, and inter'l l mediate gear-wheels mounted on said links, whereby motion may be conveyed from the mechanism mounted on one carriage to that moun tedonn the other independent of the relative posit-ions of said carriages, substantially as described. f

3. The combination of afeeding mechanism, a friction member in the line of gearing transmitting motion to said feed mechanism, a detent for the feeding mechanism, the knifecylindegand the detent-actuating apparatus which consists of the two cam-plates adjustable one upon the thcr,substantially asdescribed.

4. 'The combination of a feed mechanism, a` `friction member` in `the line of gearing transmitting motion to said feed mechanism,ade. tent for the feed mechanism, the knife-cylinder, and the adjustable lcam which revolves with said cylinder and actuates the deteut, together with the operating cylinder or cylindersrevolving at the same circumferential i speed as the k {life-cylinder, substantially as described.

l l 5'.' The combination, with a cam which terminates suddenly and rises again' gradually; of-a detent-lever, a rectangular offset which adords tlie last bearing-point of the lever upon the cam, anda friction-roller which lifts the lever up onto the cam again, substantially as described.

6. The combination of the-feed mechanism, which consists of two endless bands with rows of projections thereon, a set of transverse knives which do not quite extend to the said rows .of projections, mounted on a knifecylinder, and a second set of rotary knives 'upon a separate cylinder, which cut from the continuous web of material the edges which have been perforated by the feed mechanism, therebyV forming a succession of separate sheets, substantially as described.

7 The combination of the feed mechanism, which consists of two endless bands with rows of projections thereonfa set of transverse knives which dov not quite extend to the said rows of projections, mounted on a knifecylinder, and a second set of rotary knives upon a separate cylinder, which cut from the continuous web of material the edges which have been perforated by the feed mechanism` thereby forming a succession of separate sheets, together with the forked and'curved guides for removing said perforated edge por- A tions, substantially as described. 8. The friction-gear for intermittent feedA mechanism composedof a wheel folimedof two parts pressed together by a screw, one'of said parts being made hollow to form an oilreservoir, a leather diskV between said parts, and passages from saidoil-reservoir to said disk, substantially as described.

- ERNST LIETZE. (lVitnesses:

ANDREW HERRLINGER,

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