US1290727A - Printing-press. - Google Patents

Description

C. W, DYER.

' PRINTING PRESS. APPLICATION FILED JUNE 12, 1916.

.Iatented J an. 7, 1919.

E p I 1 WITNESS F1 g I I CHARLES W. DYER, IOF STrLOUIS, MISSOURI, ASSIGNOR TO WILLIAM M. SHULTZ, OF-

' parts in the several and * PATENT OFFICE.

' ST. LOUIS, MISSOURI.

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Specification of Letters Patent.

Patented Jan. 7, 1919.

Application fi1ed-June'12, 1916. Serial No. 103,133.

To all whom z't'may concern I Be it known that I, CHARLES Drama citizen of the United Statesof America,lresiding at the city of St. Louis, Stateo'f Missouri, United States of :America, have inventeda certain new and useful :Printing Press, of which the following is such afull, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference-being had to the accompanying drawings, forming part of this specification.

My invention relates to a printing press, more particularlyto a press adapted to print in two or more colors at the same time.

In the accompanying drawings, which illustrate as much .of a printingpress as is necessary to illustrate my invention, Figure 1 is a side view; Fig. 2 is an enlarged section through a portion of one of the roller carriages,- Fig. 3 is a View of the distributing roller showing the cam in one position; Fig. 4 is a view showing the cam in a different position; Fig. 5 is a plan view of the stencil plate; Fig. 6 is a detailed view of the means for'supporting the stencil plate, and Fig. 7 is a side view of one of the roller carriages.

Like marks of reference, refer to similar views of the drawings.

10 is an oscillating portion of the frame of the printing press. This portion 10 is operated from a wheel 11 by means of a pitman '12. Carried by the frame 10 is an up right 13, supporting an ink-well 14 for supplying ink to the inking disk 16, which'is rotated by means of a pawl mechanism 15. The inking disk 16, shown in dotted lines in Fig. 1, has a stencil plate 17, shown in detail in Fig. 5. This stencil plate as shown is provided with a pair of openings 18 adapted to supply ink of one color to the ink rollers, and with openings 19 for supplying ink of another color to the'inking rollers. It will, of course, be understood that the form and arrangement of the openings may be changed so as to adapt the press to work of three or more colors if desired.

In order to rigidly support the stencil plate 17 in contact with the surface of the inking disk 16, I provide the said plate 17 with a pair of short slotted arms 20, best shown in Fig. 1. Each of these arms 20 is secured by means of a thumb nut 21 to a second arm 22 carried-by an upright 23, mounted o'nthe frame 10. The arm 22 is pivoted to the upright 23 by means of a bolt 24, and a second bolt 25 passes through said arm and through a curved slot 26 in the upright23, so that the angle of the stencil plate may be adjusted to secure the exact alinement of the stencil plate .with'the face ofthe inking disk 16. By means of this adjust ment and the vertical adjustment secured by means of the slots in arms 20 the stencil plate may be made toconformexactly to the face of the inking disk,'and at the same time the plate is rigidly secured in position so as to prevent any blurring of the ink by movement of the plate relative to the inking disk. Ink is supplied to the disk and to the type form (not shown) by means of a pair of inking rollers 27 mounted in a pair of carriages 28 secured to spring actuated rods 29 moving in guides 30. A third inking roller 31 may also be supplied, whichroller is carried by spring arms 32, moving in a guide 33. In order to distribute the ink on the inlr rollers 27, I provide a distributing roller, which will now be described.

Each of the carriages 28 is provided with a member 34 pivoted to the said carriages at 35and securedin position by a pivoted bolt 36 and a thumb nut 37, the said bolt being arranged ina slot 38 in 'the swinging member 34. The swinging member34 is adapted to clamp a split box 39 around the end of a rod 40, so as to hold the "rod against both rotative and longitudinal movements. Mounted on this rod 40 is a sleeve 41, which is free to rotate upon the motion thereon. This sleeve is provided at one end with a cam 42, which cooperates with a cam 43 rigidly secured to the rod 40 so that when the sleeve is rotated upon the rod 40 it will be moved longitudinally a short distance by the cooperation .of the cam faces on the parts 42 and 43. 54 is a spring surrounding the rod 40 at the opposite end, and bearing at one end on the sleeve 41, and at the other on a collar 44, secured on the rod 40. In order to provide ink distributing surface for the distributing roller I mount on the sleeve 41 two or more roller sections 45, which are rigidly secured to the said sleeve by set screws 46.

These roller sections 45 correspond. in number to the different inks used on the inking disk. In the present case they are shown as two in number. The ink surfaces are separated by a space 47, which is at least as wide as the amount of longitudinal movement caused by the cams 42 and 43 to prevent the mixing of the inks by the longitudinal oscillation of the rollers.

In order to secure proper contact of the distributing roller with the ink rollers 27 the box 39, hereinbefore referred to, is adjusted toward and away from the ink rollers by means of a screw 48, and a pair of screws 49 are also provided for compressing springs 50 which bear upon the outer face of the box 30, so as to allow a slight amount of movement in the box to overcome any inequalities which may occur in the rollers.

The operation of my press will be as follows The ink is supplied from a fountain 14 to the rollers 27, andthence supplied to the ink disk through the stencil plate 17, which insures the application of the dilferent colored inks to the proper portions of the disk. The distributing roller sections will be rotated by contact with the rollers 27, and these sections are oscillated longitudinally so as to greatly increase their efiiciency as a distributing device. At the same time, as the rod- 40 is firmly clamped to the carriages 34, it will serve as a brace to prevent lateral movement of the inking device as a whole. In case it is desired to use a different number of inks, or a difierent distribution of the same, the roller sections 45 can be removed from the sleeve 41, and others substituted therefor. This can readily be done by simply loosening the thumb nut 37 so that the bolt 36 can swing out of the slot 38 and then swinging the part 34 on its hinge 35 so as to release the box 39.

Having fully described my invention,

Copies of this patent may be obtained for five cents each. by addressing the what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a printing press the combination with an inking disk, of a stencil plate for said disk, a pair of inking rollers cooperating with said disk through said stencil plate, and a vibrating distributing roller cooperating with said inking roller, said distributing roller comprising a plurality of parts separated by a distance substantially equal to the amount of longitudinal vibration of the roller.

2. In a printing with an inking disk, of a stencil plate cooperating with said disk and provided with a downwardly projecting arm, of an up right carried by the frame, and means for rigidly securing the said arm to the said upright at different heights.

3. In a printingpress, the combination with an inking disk, of a stencil plate cooperating with said disk and provided with a downwardly projecting arm, of an upright carried by the frame of the press, a

ivoted arm adjustably secured to said upright, and means for securing said last named arm rigidly to the arm on said stencil plate.

4. A multicolor printing ing ,presses, comprising with the inking disk and the cooperatmg inking rollers of a printing press, of an orificed stencil supported over the disk removably, and means for supporting said stencil, consisting of orificed lugs on the stencil, relatively fixed standard means provided with orifices registering with the orifices in said lugs, and detachable fastening means secured in said registering orifices to clamp said stencil to the standard means.

In testimony whereof, I have hereunto set my hand and affixed my seal.

CHARLES w. DYER. [1 8.]

device for printthe combination Gommissioner of Patents.

Washington, D. 0."

press, the combination.

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