US702139A - Printing-machine. - Google Patents

Description

Patented lune l0, I902.

E; LEE. PRINTING MACHINE. (Application filed Dec. 23, 1 901.

(No Mudai.)

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UNITED STATES PATENT OF ICE.

E WARD LEE, E LEEDS, ENGLAND.

- PRINTING-MACHINE.

SPECIFICATIGN' formingpart Of Letters Patent NO. 702,139, dated June 10, 1902.

Applicatiozi'filed December 23, I901. Serial No. SGAlS. (No model.)

T0 at whom it may concern:

Be it known that I, EDWARD LEE, lithographer, a subject of the King of Great Britain, residing in Leeds, in the county of York,

England, (whose full postal address is Mid-- land road, Hyde Park, Leeds,) have invented certain new and useful Improvements in Printing-Machines,(for which provisional application has been made inEngland under No.

surface is liableto be uneven, and avery slight degree of unevenness prevents the impression in ordinary printing devices from taking effect. Further, in existing machines it is not practicable without'cleaning and setting to print simultaneously from the same pattern or block in several difierent colors.

Now my present invention is designed to accomplish these results. By it I can print very uneven tiles with great accuracy and without altering the machine change the color. A The process consi t essentially, in what I may calla double-transfer system, the original block transferring the image in ordinary printing-varnish" ontoa yielding block .or surface, which in turn deposits the transfer onto the tiles, webof cloth or paper, or other article to be printed. The latter is then while the varnish is still sticky powdered with the requisite color, and thus the image obtained. In this way numerous different colors can be printed one on top of the other, and the same printing-block can be used for any color that is desired. Further, a portion of the image can 'be colored with one color and another portion with another by sprinkling the right powders over them.

In carrying out this process I use special machinery, set forthin elevation and partly in section in the drawing. It is merely a modification of an ordinary machine for printing from collotypes, zinc or aluminium plates,

or the like; but instead of printing direct Tiles i cannot be onto the tile it prints onto afurther roller-of used; but in printing webs of paper or cloth the entire circumference of the cylinder is covered with printing-plates, forming-a continuous repeat design.

D is the ordinary ink-duct; E E, feed-r0ll-. 1ers; F,main inking-cylinder, and G the various spreadingrollersyH, the dampingroller; I, usual train of levers; J, damping-- cylinder in water-trough K. In some cases now everything that has been mentioned is :well known, being foundin an ordinary lithographic and letter-press machine, with the exception of my extra cylinder L, hereinafter calledthe second set-0E cylinder. This cylinder L is preferably slightly smaller in parts E, Land J are not required. Up to diameter than the upper cylinder and has its working parts M formed of an elastic composition.

N is gearing connecting the cylinder L with sprocket-wheel O, hereinafter described.

P is an endless skeleton or other endless apron formed of two sprocket-chains'connected by leather bands or the like and passing over sprocket-wheels O 0. Wheels 0 and O are supported in sliding bearings P P, the position of which can be regulated by screws Q and Q, so that the chain shall always be sufficiently tight not to sag appreciably.

R is a roller, preferably of a somewhat yielding material, held in a bearing adjustable vertically by the screw S- This wheel supports the apron or chains P in'the center line immediately under the second set-off-cylinder L. r

T T are tiles placed on frames'U U, firmly tendant has simply to drop the tiles into these frames. They pass on under cylinder L. In the meantime the cylinder B has had the printing-blocks O O or its entire surface, as thecase may be, Well inked in the usual lithographic or ordinary manner, but with printing-varnish. The cylinder B in turn transfers the image to the peculiar composition plates M on cylinder B, which in printing tiles are segmental as shown in line-dots, if for printing webs, they extend all around the cylinder, as shown by the point-dot line and line-dot line combined, and these in turn transfer them to the tiles T, (or to the webs.) The tiles run on in the direction of the arrows and are taken off at the point V by another attendant. The frames U continue to travel on until they again reach the commencing-point at W, when a fresh tile is put in their place. printed, the tile-frames U are removed and the web passes along on the rotating apron or the apron is also removed and the web is fed in synchronously or by the grip of the rollers R and L, which are brought close against each other by screw S.

I declare that what I claim is 1. In a printing-machine, the combination of an impression-cylinder carrying the printing-surfaces on its periphery, and means for supplying the same withink color or varnish, of a transfer-cylinder geared synchronously with it, thick elastic cylindrical transfer-surfaces on this transfer-cylinder, an apron be- Where continuous webs are low carrying the articles to be'printed under and against the transfer-surfaces, and an adjustable cylinder immediately below and between the ends of the upper run of the apron pressing with adjustable pressure the apron and its contents against the transfer-cylinder; substantially as described.

2. The combination of an impression device, inking devices, and a transfer-roller with an apron carrying the blanks to be printed, pulleys, shafts and sprocket-wheels carrying and driving said apron sliding bearings for said shafts, adjusting devices for regulating the distance apart of said bearings, and an adjustable roller supporting the upper run of the apron directly beneath the transfer-roller; substantially as described.

3. The combination with the impression device and transfer-cylinder, of an endless carrier below the transfer-cylinder and pro- Vided with transverse frames U, U, for the articles to be printed, and an elastic roller directly under the transfer-cylinder and supporting the upper run of the endless carriers between the bearings thereof 5 substantially as described.

In Witness whereof I have hereunto signed my name, this 13th day of December, 1901, in the presence of two subscribing witnesses.

EDWARD LEE.

Witnesses:

EDWARD FORSTER CHAPMAN, LIONEL WARNER STANLEY.

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