US634145A - Machinery for printing in several colors. - Google Patents

Description

No. 634,l45. Patented Oct. 3, I899. E. LAMBERT.

MACHINERY FOR PRINTING IN SEVERAL COLORS.

(Application filed Dec. 29, 1897.) (No Model.) 2 $heets-8heet l.

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No. sa4,|45. Patented Oct. 3, I899. E. LAMBERT.

MACHINERY FOB PRINTING IN SEVERAL COLORS.

(Application flied Dec. 29, 1897.) K (No Model.) N

I 2 Sheets-Sheet 2.

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NITED STATES PATENT Fries.

EDOUARD LAMBERT, or PARIS, FRANCE.

SPECIFICATION forming part of Letters Patent No. 634,145, dated October 3, 1899. Application filed December 29,1897\ Serial No. 664,349. (No model.)

To all whom it may concern:

Be it known that I, EDOUARD LAMBERT, a

citizen of the Republic of France, and a resident of Paris, France, have invented certain new and useful Improvements in Machines for Printing in a Plurality of Colors, of which the following isa specification.

This invention has been patented in France under date of October '17, 1894, (addition to Patent No. 217,860.)

I have described before in the specification annexed to an application for patent an improved construction of machinery for printing in several colors which is characterized by the combination, with two or more machines, which are single-platen machines, of a system of mechanism which effects the transport of the sheets from one printingform to another, the uniform travel of which is determined by a rod of definite length that moves between two fixed stops. In this machine the length of the cylinder is more than four times the length of the sheet to beprinted, so that for a long sheet the cylinder would be very long. In this case it is better to have separate and parallel cylinders, one for each color, and to effect the transport of the sheets construction of machinery for printing in sev-' eralcolors which is characterized by the combination, with two or more single machines placed with their cylinders parallel, of a mechanism which effects the transport of the sheets from one cylinder to another, the uniform travel of which is determined by stops fixed on the cylinders.

The accompanying drawings show by way of example a machine for printing four colors.

FigureI shows a side view of a flat-bed machine. Fig. II isa part side view to a larger scale, showing the transporting mechanism. Fig. III shows a transverse half-section of the transporting mechanism. Figs. IV and V show a View and a section of the transport ing-bar, with pins and air-pipes. Fig. VI

shows a section of a rotarymachine with the ing mechanism.

A, Figs. I and II, designates the fixed fl'aming of the machine, upon which are erected the standards B O D E, containing the bearings of shafts O O O 0" of the four cylinders F G H K, the said standards B and O and I) and E and their bearings being at such distances as to leave between them a larger space than the length of the sheet, the distance between G and D being the double of the others and leaving sufficient space to place one form and two inking apparatus. On the bed which carries the four forms F G H K two racks are provided, one on each side of the bed. A gear-wheel fixed on each cylinder gears with one of the racks during the printing. The cylinders are stopped, as in the ordinary stop-cylind er machine, by the levers M M M" M, which are actuated by one or two cams moving the connecting-rods N N! NI! NI!!- shaft 0 of the cylinder G, gears with one of the racks fixed on the bed. This gear-wheel drives the gear Q, fixed on shaft R, the bearings of which are contained in the standards S. On this shaft are fixed the rollers T and the pinions U, which gear with the racks V, fixed on the bars X. These bars X (one on each side) bear on rollers T and are connectedtogether by the rods Y. They compose the transportor-carriage. This transporter carriage is so connected to the bed by the racks on the bed, the gears P, Q, and U, and the racks V that its to-and-fro motion is simultaneous with the motionof the bed and that the travel of this carriage is greater than the distance between the cylinders F and G or K and II. On each bar X are fixed five supports Z, (one only is shown on the drawings, Fig. 1,) the distance between two of these support-s being the same as between the cylinders F and G or K and H. The lower part of the supports Z is a /\-shaped recess in which is a roller a, carried by levers b and d. b can turn on axis 0, fixed on lever d, and the lever 61 can turn on axis c, fixed on the support Z. The levers I) carry the rod f, on which are the pins 9. A spring h, fixed on the support Z in l and on the lever 11 in m,

causes the lever 79 to go up and the roller a- A gear-wheel P, loose on the to remain in the apex of the /\-recess on support Z. On each cylinder the sheets are kept between the nippers and the bars a. In the bars a are grooves, Fig. ill. The cylinders are cut away at each end, as shown at 0, to leave a sufficient space for the levers h and rollers aand for the little stops (1 q, fixed on the cylinders. In the middle, between the cylinders G and II, are nippers p and a bar it. These nippers move exactly as the nippers of the cylinders. F, G, II K are inking-tables. The inking-rollers are raised when they pass over another form than the right one.

The travel of the sheet of paper is as follows: A sheet is margined on the cylinder F in the ordinary manner during the stoppage of the cylinder. The nippers of the cylinder are closed and the sheet is carried around by the rotation of the cylinder, which is made to revolve for printing from form I The cylinder then stops, the nippers being still closed. During the revolution of the cylinder the transporter, having its motion in the same direction as the bed, goes from the cylinder G to the cylinder F. The travel of the transporter being greater than the distance between G and 1 before the stoppage of the cylinder,the levers b and the barf bear against the stops q, fixed on the cylinder F. hen the transporter goes farther, the roller a must go down one of the arms of the /\-recess 011 support Z, the barf falls on the nippers, and

the pins 9 penetrate between the nippers into the grooves of the bar a and pierce the margined sheet. The nippers of the cylinder F then rise and make half a revolution to leave the course free for pins 1 and rodf. At this moment the bed begins to go back in the direction of the cylinder G and the transporter X Z has the same motion; but when Z begins to go back the spring 7L causes the roller a to go up in the /\-recess, and the levers b can leave the stops 1 q only when the roller a and the barfarc up. At this moment the sheet is raised with the pins and is carried away over the nippers by the transporter. The end of the sheet during this travel lies first on the cylinder and after on the table t. Before the end of the travel of X Z the lever b butts against the stops (1 g on the cylinder G and the /\-recess of the support Z going farther causes the roller a and the rodf to fall,

so that the pins and paper sheet are stopped and lowered and the nippers are again closed down. In the same time a fresh sheet,which has been inargined on the cylinder F, is taken by the nippers of that cylinder. The cylinders revolve and an impression is given to each of the sheets. Before the end of this revolution the first lever 11 butts against the stop g on the cylinder F and the second lever Z) against the stop (1 on the cylinder G. The pins go down and pierce the two sheets, the nippers rise, and the two sheets are taken away-the first to the bar a in the middle between G and II and the second to the cylinder G. A fresh sheet is margined on the cylinder 1 The cylinders revolve, the first sheet remains motionless between the nippers p and the bar a, the second and the third revolve with the cylinders G and F, &e. IVhen a sheet has revolved on the cylinder K, it has been printedin four colors and it goes out on the tapes m.

Fig. IV shows the rod f with the pins g and little pipes g, which communicate with the pipe f These pipes, in which a vacuum is made and which aspirate the sheet, can be used with the pins to transport the sheet.

\Vhat I claim as my invention is-- 1. The improved construction of machinery for printing in several colors consisting of the combination of two or more single printingmachines which have their cylinders separate and parallel, and a reciprocating carriage guided on the frame of the machine in a direction perpendicular to the axis of the cylin ders for conveying the sheets of paper from one cylinder to the next and stops for determining the motion thereof, substantially as described.

2. In combination the plurality of cylinders, a reciprocating carriage for transferring, the

paper sheets from one cylinder to the next while the cylinders are at rest, racks and pinions geared with a rack fixed on the bed for imparting a to-and-fro motion to said carriage, and devices supported by the said carriage to transport the paper sheet from one cylinder cam against which said bar is normally held by springs, pins on said bar, and a cam for lowering and raising said bar to cause the pins to pierce the paper at the head thereof Where it is held by the cylinder-nippers and before they are opened, and to release the same after the nippers have closed again when the travel of the paper is completed, and auxiliary transporting devices.

4. In combination the plurality of cylinders and cylinder-nippers, a reciprocating carriage for transferring the paper sheets from one cylinder to the next while the cylinders are at rest, the said carriage having to-and-fro motion, a bar supported from said carriage and capable of transverse movement thereon, a cam against which said bar is normally held by springs, pins on said bar, and cam for lowering and raising said bar to cause the pins' In Witness whereof i have hereunto set my hand in presence of two witnesses.

EDOUARD LAMBERT.

pin-bar supported by springs; the lengthof travel of the reciprocating carriage being greater than the length between the stops; so that when the transporting-bars are arrested I by the stops having their exact position so de- \Vitnesses: termined the carriages continue to travel to EDWARD P. MAOLEAN, a certain extent substantially as described.

J ULES FAYOLLET.

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