US303117A - ohatel - Google Patents

Description

(No Modal.) 4 Y 4 sheets- Sheet 1.

H. CHATEL.

POLYGH'ROME. PRINTING MACHINE.

No. 303,117. Patented Aug. 5, 1884.-

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POLYGHROMB PRINTING MAGHINE.

10.13.03.111 Patented Au .5, 1884.

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(No Model.) 4 sheets-sheen s.

H.y CHATEL. POLYGHRGME PRINTING MHNB. No. 303,117.O y Patented 111g. 5, 1884.

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H. CHATEL.v

POLYHROME PRINTING MACHINE. N0 303,117 y Patented Aug,`5,1884.

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l I v l w L. i lwvz'm "NrrED n STATES HENRI CHATEL, OF PARIS, FRANCE, ASSIGNOR TO THE SOCIT ANONYME DIMPRESSIONS SIMULTANCES EN PLUSIEURS COULEURS, OF SAME PLACE.

POLYCHROlVlE-PRINTlNG MACHINE. 'l

EPECIFICATION forming part of Letters Patent No. 303,117, dated August 5, 1884.

Application filed April 5, 1884. (No model.) Patented in France February 23, 1882, No. 141,524, and June 2?. 188:2, No. 149,791.

. To @ZZ whom. it 11156;/ concern,.-

Be it known that I, HENRI CHATEL, a citizen of the French Republic, residing in Paris, France, have invented certain new and useful Improvements in Polychronie-Printing Machines, of which the following is a specification.

, The object of this invention is to print in two or more colors at the same impression,

In addition to the general printing-surface of the form, one or more movable printingsuraees are applied, in connection with mechanism for causing thein to sink below the general surface while the latter is being inked, to i rise-above the general surface in order to be inked with ink of a different color from that applied to the generall surface, and nally to assume a level withthe general surface during the printing or impressing of the paper. The

2O movable portions oi' the printingsurfaee are preferably stereotype or electrotype plates, and they are mounted in recesses in the printing-forni in such manner as to be guided accurately in their up or down motion and firmly held tothe proper level while the impression is being taken.

The invention is equally applicable to the flat forms used in reciprocating presses or to the cylindrical forms .used in cylinder-presses,

3g whether the latter have a continuous rotative or an oscillatory movement.

' The accompanying drawings show my invention in its preferred form as applied to a rotary cylinder-press for printing both sides of the paper simultaneously from a continuons roll.

Figure 1 is a side elevation of my machine, the right-hand portion of which is in vertical section. Fig. 2 is a plan. Fig. 3 is a vertical 40 section cut along the line 3 in Figs. l and 2. Fig. 1I is a transverse section'of the printing or form cylinder. Fig. 5 is au endelevation of this cylinder, its shaft and annular cani being in section. Fig. is al plan of one end of one of theniovable plates or sections of the printing-cylinder, thereof.

' This improved printing-machine consists, in general, of two distinct printing apparatus for printing the opposite sides of the paper, both being substantially alikein construction, and

and Fig. 7 is a side elevation power.

driven in unison from the same source of The strip of paper from the roll enters at the bottoni, and, after being printed on both sides and cut into sheets, it emerges at the top of the machine, whence it is carried away bythe sheet-delivering mechanism.

In Fig. 1 the left-hand printing apparatus is shown in elevation and the right-hand apparatus is shown in section. As both are sub- 6:) stantially identical,but one need be described.

Referring principally to Figs. l and 2, but incidentally also to the other figures, let A A designate the general frame ofthe machine, B B the two impression-cylinders, and O C thewtwo printing or form cylinders. Each -of the two printing apparatus consist of one impression-cylinder, B, one printing-cylinder, O, and two inking apparatus, one for one color-black, for instance-and the other for 7o some other color. This is when two colors only are to be printed;

Referring to the right-hand portion of Fig. l, the lower inking apparatus,.lettered D, is for black ink, and the upper apparatus, let- 7 5 tered E, is for some colored ink. Each of these apparatus consists of an ink-reservoir,

. G, a doctor-roll, F, transfer-rolls H, conveyingand in them are arranged plates L L, which 9o fit between the walls, and have raised ribs or anges d d along their sides. Over cach plate L extends a screw, e, and over this screw lit one or more printing blocks or plates, M, which are confined between the flanges el d, and are adjusted and clamped in place by nuts ff on the screw c. At each end of the plate L is a roller, 7c, pressed against the periphery of a l ring-shaped cam, N, (shown best in Fig. 5,)

by a spring, g, adjusted by a nut, g, screwing 10o on a rod, O. The rods O O are lxed in the cylinder at its ends, and pass through holes in the end of the plates L L, thus guiding thel between the tapes "s and s', which carry it latter. There are two cams, N-one at each end of the cylinder C-and both fixed to the frameA, as shown in Fig. 3. Each of these cams has three distinct divisions, h, t', and j, of different radii, and as the rollers 'ride from one onto another with the rotation of the cyl-4 inder, the plates L L rise and fall relatively to the general surface of the cylinder. -The division h has the greatest radius, the division i' the smallest, and the division j an intermediate radius. sion, encounters the division h, andis moved outward, so thatits printing-surface b projects beyond the surface ci sufficiently to come in contact with the colored inking-rolls 'K' K', and receive its coating of colored ink, these rolls being sufficiently removed from the surface c of the cylinder to avoid their inking that surface. Then, as the cylinder revolves, the plate L leaves the raised portion h of the cam, Iand its rollers run onto the portion i of smallest radius, whereupon the plate is drawn v in until its printing-surface b is within the printing-surface a of the cylinder; and as the latter reaches the inking-rolls K K, which are in contact with it, it receives its coating of black ink therefrom, and the sunken surface b avoids being coated therewith. Further, when the rollers of the plate L reach the portion j of the cam, the plate is protruded until the printing surfaces a and b are both on the same level,

whereupon they are brought in contact with the paper and apply the impression thereto. The paper comes from a roll, B, passes beneath the machine to the middle, wh'ere it passes between rollers Q Q, thence upward over a roller, Q, around the impression-cylindcrB of the left-hand printing apparatus, whereby it is printed on one side; thence around the impression-cylinder of the other printing apparatus, whereby its other side is printed, and thence to the delivery apparatus. Before being -printed the second time, and while on the second impression-cylinder, the web of paper is cut by a serratedblade, Z, on a revolving shaft, m, and partially severed. As the web passes from the second impression-cylinder B it is carried between two rollers, n n, and is thence conducted between two revolving tapes, o 0, up an inclined frame, T, which is pivoted at T, and its free end is intermittently lifted and dropped by a lever, S, the lower arm of which is acted on by a cam, B, on a shaft q. Willen elevated, as shown in Fig. l, the end of this frame stands opposite the entrance o" between two tapes of the final delivery mechanism and when the frame is dropped its end stands op'- posite the lower entrance, ri, in this mechanism. With the proportions shown there is one sheet printed to each, revolution of the cylinders B and C, and the sheets are partially separated bythe serrated blade Z. When the frame T first lifts, the advancing edge of a sheet emerges from between its rollers p p, and is drawn into the entrance r and caught Each plate L, after each impresaround rollers t and t and deliver it at the lower entrance, r2. Vhen almost the entire sheet has thus entered at r', the frame T will drop, thus separating this sheet from the succeedingone, and entering the latter at r2. As the latter sheet`enters at r2 the advance edge of the former sheet emerges from between the tapes s and s' and joins it, and the two sheets enter together between the tapes s and u, by which they are carried to the left, andwhen the entire second sheet has been thus fed in the frame Tagain lifts. When the two sheets reach the proper position, a rack, U, standing above them, descends and presses them down, freeing them from the tapes u u, and delivering them either on a pile of sheets on a table or on an endless apron, as desired. The rack U slides in vertical guides, and is operated by a lever, V, fulcrumed on a shaft, V', and the end of its lower arm bearing a roller, which is acted on by a cam, W, on a shaft, w', in order to press down the rack, a spring, w?, being provided to lift it. This particular sheet-delivery mechanism is well suited to my press, but formsno part of my present invention, and any other known and suitable delivering mechanism may be substituted for it.

I will now describe the gearing usedto drive the several parts in proper time. l

A is the power-shaft, which bears a pinion, c', which imparts motion to a gear, b', which meshes with a gear, c', fixed on the shaft ofthe left-hand printing-cylinder C. The gear b also meshes with a gear, d, on the shaft of the left-hand distributingcylinder D. The gear c imparts motion to a gear, e', fixed,` on the shaft of the left-hand cylinder B, and this in turn drives aseries of gears fixed, respectively, on the shaft of the right-hand cylinders B C J J, transfer-rolls H H, and doctors F F. The shaft m is driven by a gear, m', meshing with the gear on the shaft of the cylinder B.V

To the gear b is fixed a gear, f', (shown in dotted lines in Fig. 1,) which imparts motion to a gear, g, and this in turn to a gear, h', to

which is fixed a bevel-gear, which drives an oblique shaft, Q, which has fixed to its opposite ends bevel-gears i', which drive gears j,

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xed on the shafts of the respective doctorrollsF F.' On their opposite ends these shafts bear pinions k/,which mesh with gears Z,which rotate the rollers H H, as shown at the right in Fig. 2. The cam-shafts q and w are driven from the gear c by a series of gears, n', p, p, r, x, x', wf, and w3, and q. The gears are so proportioned that the cams R and WV make one revolution to two revolutions of the printing-cylinders. Y

Any other' suitable arrangement of gearing may be substituted for that shown.

Vhenever it is desired to print in more than two colors, an additional cam, N, will be required for each additional color, and the rollers 7c 7c of the platesL'L will be arranged in different planes, so as to roll upon the differ ent cams, each rolling upon the cam corre@ spending to the special color to be printed by the' printingsurface b, carried by its plate L. In this ease the printingsurfaces carried by one plate, L, may, for instance, print red, while those of another plate may print blue, and those of still another plate may print green, all at one operation.

I claim as my invention- 1. In apress for polychroinatic printing, the combination, wi th the general prin ti iig-surface having an invariablelevel, and With its inking apparatus, of one or more printingsurfaces which are movable relatively to saidsurface to levels above and below the saine, an inking apparatus for said movable surface adapted to inl; the same when projected beyond the gen eral surface, and with mechanism, substantially as described, for raising said movable printingsnrface 'while it is being inked, for depressing said surface while the general printing-surface is being inked, and for bringing it to the saine level with the general surface while the paper is being printed, substantially as set forth.

2. In a printing-press, the printingeylinder C, having immovable printingsurfaces a and movable printing-surfaces b, the latter lchroineprinting cylinder G,having iixed print 'ing-surfaces a, for printing in onevcolor, and

movable printingsurfaces l), for printing in 40 another color, a plate or plates, L, bearing the surfaces b, rollers k 1v' on said plates L, springs g g', pressing said plates toward the axis of the cylinder, and annular stationary cams NN, on

which said rollers travel, having divisions h, z', 45

and j of different radius, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

HENRI CHATEL.

Witnesses JOSEPH GURET, AMAND RITTER.

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