US825677A - Printing-press. - Google Patents

Description

PATENTED JULY 10, 1906.

C. L. POST. PRINTING PRESS.

APPLIOATION FILED JULY20, 1905.

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CLAUDE L. POST, OF CHICAGO, ILLINOIS;

PATENT OFFICE.

PRINTING-PRESS.

Specification of Letters Patent.

Patented July 10, 1906.

Application filed July 20,1905 Serial No. 270,523.

To all whom it may concern:

Be it known that I, CLAUDE L. Posr, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Printing-Presses, of which the following, when taken in connection with the drawings accompanying and forming a part hereof, is a full and complete description, sufficient to enable those skilled in the art to which it pertains to understand, make, and use the same.

This invention relates to printing-presses provided with a bed for the type-form, oppositely-placed inking-disks, and inking-rolls, with mechanism whereby the rolls are alternately moved over the type-form on the bed and between the inkingdisks.

The object of this invention is to obtain a multicolonprinting press by means of which a border or other portion of a type-form may be printed in one color and the remainder of the type-form may be printed in a different color.

Another object of the invention is to obtain mechanism which may be attached to a printing-press already in use for the purpose of obtaining the results set forththat is, to print a portion of the type-form in one color ink and the remaining portion of the typeform in a different color ink.

The placing of oppositely-located inkingdisks on printing-presses is well known in the art, such inking-disks being respectively provided with means to cause partial rotation thereof when the printing-press is in operation each time the inking-rolls pass therefrom and are not in contact therewith.

In the mechanism embodying this invention the inking-rolls which come in contact with the type-form are sufliciently large in diameter so that the circumference will be substantially the same as the width of the form which is to be inked by such inkingrolls, and, further, the inking-rolls which come in contact with the type-form in the operation of the press are at no time brought into contact with either of the inking-disks, such inking-rolls being carried between the inking-disks, and additional inking-rolls of smaller diameter (which may be at all times in contact with the first-named inking-rolls) are brought into contact with the respective inking-disks.

To obtain inking of part of the type-form in one color from one of the rolls and inking of the remainder of the type-form in a different color by the other inking-roll in an apparatus embodying this inventi0n, I arrange a gear-track on one side of the type-form bed and along the side of the inking-disks (preferably a track on both sides) and attach gearwheels, intermeshing with such gear-track, rigidly to the shaft of the inking-rolls which come in contact with the type-form, thus insuring the same place on the roller coming in contact at all times with the same part of the type-form in the operation of the press after the press is once made ready to work, and I then cut out those portions of the inking-rolls which come over the portions of the typeform which are not to be inked by such rolls respectively.

The pitch-line of the gear-wheels on the inking-rolls are substantially the same diameter as is the diameter of such inking-rolls which are cut out as described.

The geared track as it extends along the sides of the inking-disks is raised, so that the inking-rolls on which the geared wheels are secured are thereby raised above the lower inking-disk, so as not to come in contact therewith, but are not raised a sufficient distance to come in contact with the upper inking-disk.

The direction in which such large inkingrolls rotate is of course determined by the gear-wheels on the shaft thereof intermeshing with the gear-track.

It occurs that the inking-roll of large diameter which is to have thereon ink obtained from the upper inking-disk requires a single inking-roll of small diameter to be in contact therewith and with the upper inking-disk as such inking-rolls travel thereunder, while the inking-roll of large diameter, which is inked by the ink on the lower inking-disks, is provided with two rolls of small diameter, one thereof coming in contact with the lower inking-disk in the operation of the press and the other thereof intermediate between the lastnamed inking-roll and the inking-roll of large diameter which is inked thereby. By ,this arrangement of inking-rolls the fact that the direction of turning of the inking-rolls of large diameter is controlled by the gearwheels on the shaft thereof engaging with the geared track does not interfere with the operation of such inking-rolls and the engagement of determined ones thereof with the inkingdisks.

To prevent the inking-roll of small diame- IIO ter which comes in contact with the lower inking-disks coming in contact with theitypeform, the ordinary track along both sides the bed of the press is retained by me and rollers, preferably of slightly largerdiameter than is the diameter of such inking-roll, are placed on' the shaft thereof to turn loosely. As these loosely-turning rollers leave the track when the inking-roll passes onto the lower inking-disk such inking-roll comes in contact with such inkingedisk.

I prefer to provide a spring for holding the small inking-roll, which is designed to come in contact with the upper inking-disk, against such upper disk.

In the drawings referred to, Figure 1 is a side elevation of a portion of a. bed of a printingpress, showing a geared track extending along the side thereof and along the'side of the lower inking-disk, a portion of the inkingdisks, and inking-rolls, (the ournalbearings removed to expose the same to view.) Fig. 2 is a front elevation of a por- 'tion of the bed of the press and the inkingdisks and showing some of the inking-rolls, a portion of the'geared tracks, and a portion of the smooth tracks of the press. Fig. 3 is a vertical sectional viewiof an adjustable balland socket connection by means of which the upper inking-disk is attached to the frame of the press.

A reference-letter applied to designate a given part is used to indicate such part throughout the several figures of the drawings wherever the same appears.

X is a portion of the frameof the press. A is the bed of the press.

B is a smooth track along the side ,of the i bed A.

' against the under side of inking-disk D.

F is an inking-roll journaled in bearing f.

I and I are inking-rolls ournaled, respectively, i bearings h. Bearing h is mounted on the shaft of inking-roller F.

J J are rollers turning loosely on axle i of inking-roll I. Rollers J 'J travel on tracks B K K are gear-wheels rigidly secured on shafts L L, respectively, of the inking-rollers F F. The teeth of gear wheels K K engage with the teeth of geared track E E, respect v yi It will be observed that when the rollers are moving in the direction of the arrowM, Fig. 1, the gearw heels F F will respectively turn in the direction indicated by the arrows m m,

and that the inking-rolls H, and I rewould be turned by their contact with such disks, respectively.

The rollers J J travel on tracks B B, and such tracks are raised sufliciently to carry the roller I above and not in contact with the type-form O on the bed ofthepress.

find it advantageous, particularly when the apparatus embodying this invention is to be attached to a press already in use, to rovide means of adjusting the inking-dis D relative to the plane in 'which its surface stands and also relative to the distance of such plane from the surface of the inkingdisk C, and for such purpose I provide, first, the spindle P, rotatably and longitudinally movable in sleeve p and provided with screw-threads p p at its ends, the threads on the lower end engaging with corresponding screw-threads in inking-disks D and the threads on the upper end engaging with corresponding threads in butterfly-nut Q. The spindle P is also provided with a groove g, with which a pin 1' in collar R, which rests on the upper end of sleeve p, engages, so that such collar will turn with the spindle as the spindle rotates in the sleeve in the rotating of the inking-disk; second, the disk S on the lower end of sleevep and preferably integral therewith, the disk S, loosely mounted on sleeve 20, and the nut T, the screw-threads whereof engage with corresponding screw-threads on the up per end of the sleeve p.

The end of part t of frame X is provided with a hole through which the sleeve p extends, fitting loosely. Such end of part tis placed between the end S of sleeve 19 and disk S, and the inking-disk is turned into a plane tangential to the roller which is to engage therewith when the press is in operation, and nut T is turned down on disk S to hold the several parts firmly together. The disk D may then be raised or lowered into a determined position by turning butterfly-nut Q on spindle P.

- The inking-rolls are made with a core covered .by the composition ordinarily used for printing-press rolls, and the core of the inking-rolls of-large diameter may be so large that such composition will be from onefourth to one-half an inch in thickness.

I claim- 1. In a printing-press, the combination of a type-form bed,'-oppositely-placedinkingdisks, tracks extending on both sides of the bed, a geared track extending on the side of the bed and inking-disks, inking-rolls the circumference whereof substantially corresponds with the width of the type-form bed, gear-wheels rigidly secured to the inkingrolls to turn therewith, such gears intermeshcumference whereof substantially and track arranged to permit the inking-rolls to contact with a type-form on the bed of the press when traveling thereover and not to contact with the inking-disks when traveling between them, additional inking-rolls one thereof in contact with one of the first-named inking-rolls and another thereof in contact with the other one of the first-named inkingrolls, rollers mounted on the additional ink ing-roll which contacts with the lower inkingdisk, arranged to travel on the first-named tracks, and such rollers and tracks arranged to permit such inking-roll to contact with the lower inking-disk and to raise it from contact with the type form; substantially as described.

2. In a printing-press, the combination of a type-form bed, oppositely-placed inkingdisks, tracks extending on both sides of the bed geared track extending on the side of the bed and inking-disks, inking-rolls the circorresponds with the width of the type-form bed, gear-wheels rigidly secured to the inkingrolls to turn therewith, such gears intermeshing with the geared tracks, such gear-wheels and track arranged to permit the inking-rolls to contactwith a ty )eform on the bed of the press when traveling thereover and not to contact with the inking-disks when traveling between them, additional inking-rolls one thereof in contact with one of the firstnamed inking-rolls another thereof in contact with the other one of the first-named inking-rolls, and one in contact with the last-named inking-roll and with the lower inking-disk, rollers mounted on the inking-roll which contacts with the lower inking-disk, arranged to travel on the first-named tracks, and such l rollers and tracks arranged to permit such inking-roll to contact with the lower inkingdisk and to raise it from contact with the type-form: substantially as described.

8. In a printing-press, the combination of a type-form bed, oppositely-placed inkingdisks, tracks extending on both sides of the bed, a geared track extending on the side of the bed and inking-disks, inking-rolls the circumference of each whereof is sufficient to bring the same point thereon in contact with a given point on the type-form on the bed, gear-wheels rigidly secured to the inkingrolls of large diameter to turn therewith, such gears intermeshing with the geared track such gear-wheels and geared track arranged to permit the inking-roll to contact with a type-form on the bed of the press when traveling thereover and not to contact with the inking-disks when traveling between them, additional inking-rolls one thereof in contact with one of the first-named inking-rolls and arranged to contact with the upper inkingdisk, another thereof in contact with the other one of the first-named inkingrolls, and the remaining one in contact with the lower inking-disk, rollers mounted on the ends of the additional inking-roll which contacts with the lower inking-disk and arranged to travel on the firstnamed tracks, such rollers and tracks arranged to permit such inking-roll to contact with the lower inking-disk and to raise it from contact with the type-form: sub stantially as described.

4. In a printing-press provided with oppositely-presented inking-disks, and inkingrolls, and means to move the inking-rolls be tween the disks, the combination of a frame comprising a bar provided with a hole at one end thereof, with a sleeve fitting loosely in the hole, a disk underneath the bar, a disk above the bar and means on the sleeve to force the disks together against the bar, a spindle longitudinally movable in the sleeve, such spindle connected to the upper inkingdisk of the press and means to maintain the spindle in its longitudinally-adjusted position in the sleeve: substantially as described.

5. In a printing-press the combination of a type-form bed, oppositely-placed inkingdisks, a geared track extending on the side of the bed and inking-disks, inking-rolls the circumference whereof substantially corresponds with the width of the typeform bed, geared Wheels rigidly secured to the inkingrolls to turn therewith, such gears intermesh ing with the geared track, and additional inking-rolls one thereof in contact with one of the first-named inking-rolls and another thereof in contact with the other one of the first-named inking-rolls, means to cause one of such additional inking-rolls to contact with the upper disk and one to contact with the under disk as such inking-rolls travel between the disks; substantially as described.

CLAUDE L. POST. In presence of- CHARLES TURNER (301m A. ADAMS.

BROWN,

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