US1093453A - Printing-press. - Google Patents

Description

R. MIEHLE. PRINTING PRESS.- APPLICATION FILED D30. 18, 1911. RENEWED JAN. 20, 1914.

1,093,453,. Patented Apr. 14, 1914.

Arm/MY COLUMBIA PLANnnAPn c'o..wAsH(No'roN, n. c:

* STATES PATENT ornro ROBERT MIEHLE, OF CHICAGO, ILLINOIS, ASSIG-NOR T0 CONTINENTAL & COMMERCIAL TRUST & SAVINGS BANK, TRUSTEE, OF CHICAGO, ILLINOIS.

PRINTING-PRESS.

Application filed. December 18, 1911, Serial No. 666,586. Renewed January 20, 1914.

To all whom it may concern Be it known that I, ROBERT MIEHLE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new 1n Printlng- 1 and useful Improvement Presses, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to printing presses and has for its object the provision of improved means for applying ink to the ink bed from which ink is to be transferred to the type or other press printing surface.

My invention is of particular utility in connection with those printing presses that employ reciprocating ink beds but my invention is not to be limited to presses having reciprocating ink beds.

My invention finds a very useful improvement in connection with those printing presses that employ reciprocating type or press beds but the invention is not to be restricted to presses of this character.

fviy invention has for its general object the provision of improved inking mechanism in which the speed of certain of the ink transferring mechanism is materially reduced without the necessity of reducing the speed of the ink bed from which the ink is transferred to the type bed. By means of my invention the ink may be very evenly distributed preparatory to its transfer to the type bed or other press printing surface and the wear upon the mechanism for transferring the ink to said ink bed is materially reduced.

I will explain my invention more fully by reference to the accompanying drawing showing the preferred embodiment thereof as the invention is comprised in a printing press including a reciprocating ink bed and a reciprocating pressbed.

In the drawing Figure 1 is a partial end view of a printing press equipped in ac cordance with my invention; Fig. 2 is a side view of enough of the printing press to render an understanding of the invention clear, the ink and press beds being each at one extreme of their travel; and Fig. 3 is also a side view of a portion of the printing press showing the press and ink beds at the Specification of Letters Patent.

Patented Apr. 14, 1914.

Serial No. 813,276.

other extreme of their travel, certain additional parts being also shown in Fig. 3.

Like parts are indicated by similar characters of reference throughout the different figures.

The printing press frame 1 supports the impression cylinder 2 and the form inking rollers 3. The reciprocating press bed 4 travels beneath the impression cylinder, this press bed also carrying a main ink bed 5.

Runways 1 are provided for the anti-friction rollers 7 which support the press bed. These anti-friction rollers are maintained at uniform distances apart by being journaled in the bars 8. Frames 9 are secured to extensions at the front ends of the bars 8, said frames being provided with wheels 1.0 which roll in the ways 6. An auxiliary ink bed 11, in alinement with the main ink bed, is carried by the frame 9. The rolling gears 12 are pivotally secured to the bars 8 by the brackets 13. These gears aremeshed with the racks 14, 15, the rack 14 being secured to the press bed while the rack 15 is secured to the ways 6, these ways being stationary with respect to the press frame 1. By this construction the gears are given half the motion of the type bed and the auxiliary ink bed is given motion equal to one-half the speed of the type bed.

The ink fountain 16 is mounted upon extensions at the front end of the press frame where the ink fountain roller 16 is also located, this ink fountain roller being oper ated in any well known or preferred manner. Arms 17 are secured to the shaft 18 which is pivotally mounted upon extensions of the press frame, the feed roller 19 being journaled in the arms 17. The feed roller is raised from engagement with the ink fountain roller 16 into engagement with the small transmission roller 20 (as shown in Fig. 2) and lowered again (as shown in Fig. 3) by the cam 21 driven by the press mechanism whereby an oscillating motion is given to the lever 22 through the intermediation of the friction roller and stud 23, the lever 22 being pivotally secured to the press frame by the stud 2 1-. Oscillating motion is transmitted to the shaft 18 by the rod 25 which is pivotally secured to the upper end of the lever 22, and the arm 26 which is fixedly secured to the shaft 18, has

the rod 25 pivotally secured to its upper end. This motion is so timed that while the auxiliary ink bed 11 is at the front end of its travel where it engages the large transmitter roller 27, the feed roller is down and in engagement with the ink fountain roller 16 and when the ink bed 11 is at or near the rear end of its stroke the feed roller is in engagement with the small transmitter roller 20.

A rack 28 is secured to a side of the press bed 4, this rack meshing with an intermediate gear 29. The gear 29 is fixed upon the shaft 30 which is journaled in the press frame 1 and extends through it, the gear 31 being secured to the outer end of said shaft. The gear 32, which is fixedly secured to the shaft 33 of the usual vibrator roller 3 meshes with the gear 29. These gears have the same pitch diameter as the form rollers 3, thereby making the peripheral speed of the form rollers equal to the speed of the press bed.

The gear 34 is pivotally mounted upon the press frame 1 by the stud 35, the gear 34 meshing with the gear 31. The spocket wheel 36 is also journaled on the stud 35 and is secured to the gear 34. The sprockets 37 and 38 are pivotally mounted on the press frame near the front, these sprockets being secured together and mounted on the same stud 37 The sprocket 37 is driven by the sprocket 36 through the sprocket chain 39, while sprocket 38 in turn (being driven by sprocket 37) drives the sprocket 40 through the sprocket chain 42, the sprocket 40 being secured to the shaft 41 which is journaled in the press frame. The ear 43 is secured to the inner end of the shaft 41, the gear 44 being in mesh with the gear 43 and being fixedly mounted on the shaft of the large transmitter roller 27, whereby motion is given to the large transmitter roller 27 and the small transmitter roller 20 in continuous engagement with the larger transmitter roller. In order to make the 'movements given the transmitter rollers 27 and 20 harmonize with the motion of the auxiliary ink bed 11 directly engaged by the larger transmitter roller, the speed of the larger transmitter roller is reduced to half of the speed of the form rollers 3 since the auxiliary ink bed 11 is given half the speed of the main ink bed and press bed 4. This result is accomplished by making the pitch diameter of the gear 34 twice the pitch diameter of the gear 31 and the sprocket 36, which are of the same diameter, thereby making the peripheral speed of sprocket 36 half that of the gear 31. The rest of the gears 43 and the sprockets 37, 38 and 40 are of the same size. The rollers 45, 45 and 45 constitute inking mechanism for transferring ink from the auxiliary ink bed to the main ink bed, these rollers operating successively upon .manner above described. Ink is taken from the feed roller 19 011 to the small transmitter roller 20. The roller 20, on account of its small size, revolves very rapidly and thor 'oughly distributes the ink it receives from the feed roller 19 upon the large transmitter roller 27. As the press bed advances, the

form rollers pass over the main ink bed and thereafter ink the form. During this time the main ink bed has passed under the distributing rollers and after giving themink leaves them to get more ink from the transmitter rollers. The feed roller in the meantime has been lowered into position for engagement with the ink fountain roller 16 (as is shown in Fig. 3) and the main ink bed has advanced until it comes into en-.

gagement with the distributing rollers 45, 45 and 45 to receive ink from them. The end of the stroke is then reached, as shown in Fig. 3, and the press bed starts back on the printing stroke. The main ink bed takes ink from the distributing rollers and leaves them to pass under the form rollers which take ink from it preparatory to inking the form. During this time the auxiliary ink bed takes ink from the transmitter roller 27 and then passes under the distributing rollers 45, 45 and 45 which take ink preparatory to transferring it to the main ink bed, where it is taken by the form rollers to ink the form, the positions shown in Fig. 2 again being reached.

The auxiliary ink bed is very advantageous, because the distributing rollers do not require any means to start and stop them, other than engagement with the ink beds. The reason for this is that the auxiliary ink bed reverses them at the rear reversal with the easy crank motion of the bed motion mechanism, and even if they were reversed by the auxiliary ink bed coming into engagement with them, as rollers 45 in Fig. 2, it would not be injurious to the rollers because the auxiliary ink bed has only half the speed of the press bed. At the front reversal these rollers are reversed while in engagement with the main ink bed and are reversed with the easy crank motion of the press bed. The retardation and acceleration that the distributing rollers get while passing from one ink bed to the other are not violent enough to cause injury to the rollers. The arrangement is preferably such that no roller is in engagement with both ink beds at the same time.

By operating the feed roller between the ink fountain roller and the half time or slow speed transmitter roller, no starting device is necessary for the feed roller, as the slow motion of the transmitter roller will not injure the feed roller when starting it in motion, nor is any injury incurred by the feed roller being stopped as it comes into engagement with the ink fountain roller.

When making a flat ink bed in the usual way, it is necessary to construct such bed very heavy and strong since such bed materially overhangs beyond the press bed supports. By dividing the ink bed into two as I have done, the ink beds may be made lighter and can be machined more easily because of the absence of warping and springing which is encountered in machining a large casting.

By using a divided ink bed, considerable weight is taken off the press bed,-and while some of this weight is supplied to the bed anti-friction roller bars, such added weight only runs at half the speed of the press bed, thereby greatly lessening the momentum to be overcome by the bed motion mechanism at the reversals of the press bed.

My invention is shown as being embodied in a printing press whose press bed and ink beds reciprocate, mechanism being present for reducing the speed of the beds as they near the limits of their travel, whereby the speed of the main ink bed is reduced when the inking mechanism. 45,45 and 4:5 operate thereupon.

It will be seen that I have provided a printing press in which there is included an ink bed which is caused to reciprocate at a re duced speed with respect to the speed of reciprocation of the printing surface. I have also provided means whereby the inking mechanism which is employed to supply ink to said ink bed is caused to operate at a reduced speed with respect to the speed of op eration of the printing surface.

While I have herein shown and particularly described the preferred embodiment of my invention, I do not wish to be limited to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secure by Let ters Patent the following 1. A printing press including main and auxiliary ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink fromthe main bed to the press printing surface; and means for moving the auxiliary bed slower than the main bed when the second aforesaid inking mechanism is operating upon the auxiliary bed.

2. A printing press including main and auxiliary ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for moving the auxiliary bed slower than the main bed when the second aforesaid inking mechanism is operating upon the auxiliary bed and for reducing the speed of the main bed when said second inking mechanism operates thereupon.

3. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring "ink from the main bed to the press printing surface; and means for moving the auxiliary bed slower than the main bed when the second aforesaid inking mechanism is operating upon the auxiliary bed.

4. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for moving the auxiliary bed slower than the main bed when the second aforesaid inking mechanism is operating upon the auxiliary bed and for reducing the speed of the main bed when said second inking mechanism operates thereupon.

5. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing said beds to reciprocate in the same directions and causing the auxiliary bed to move slower than the main bed when the second aforesaid inking mechanism is operating upon the auxiliary bed.

6. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing said beds to reciprocate in the same directions and causing the auxiliary bed to move slower than the main bed when the second aforesaid inking mechanism is operating upon the auxiliary bed and for reducing the speed of the main bed when said second inking mechanism ope-rates thereupon.

7. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing the auxiliary bed to reciprocate at a lower rate of speed than the main bed and for reducing the speed of the main bed when said second inking mechanism operates thereupon.

8. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing the auxiliary bed to reciprocate at a lower rate of speed than the main bed.

9. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing said beds to reciprocate in the same directions with the auxiliary bed moving at a lower rate of speed than the main bed and for reducing the speed of the main bed when said second inking mechanism operates thereupon.

10. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing said beds to reciprocate in the same directions with the auxiliary bed moving at a lower rate of speed than the main bed.

11. A printing press including main and auxiliary reciprocating ink beds; inking mechanism for applying ink to the auxiliary bed; inking mechanism operating upon both beds for transferring ink from the auxiliary bed to the main bed and working upon the main bed when it nears the limit of its movement in one direction; inking mechanism for press printlng surface; and means for causing said beds to reciprocate in the same directions with the auxiliary bed moving at a lower rate of speed than the main bed.

12. A printing press including main and auxiliary ink beds; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for movingithe auxiliary bed slower than the main bed when the first aforesaid V inking mechanism is operating upon the auxiliary bed.

13. A printing press including main and auxiliary reciprocating ink beds; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and means for causing said beds to reciprocate in the same directions and causing the auxiliary bed to move slower than the main bed when the first aforesaid inking mechanism is operating upon the auxiliary bed.

14. A printing press including main and auxiliary reciprocating ink beds; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; .a reciprocating element; and a traveling .element operatively associating said reciprocating element with the auxiliary ink bed for reducing the speed of the auxiliary ink bed with respect to the speed of the main ink bed when the first aforesaid inking mechanism operates upon the auxiliary ink bed.-

15. A printing press including main and auxiliary reciprocating ink beds; inking mechanism operating upon said beds for transferring ink from the auxiliary bed to the main bed; inking mechanism for transferring ink from the main bed to the press printing surface; and rollers rotatably mounted upon the auxiliary ink bed structure and engaging the main ink bed structure at the peripheral portions of the rollers,

the press including means for reducing the speed of the auxiliary bed with respect to the speed of the main bed.

In witness whereof, I hereunto subscribe my name this sixteenth day of December,

ROBERT MIEHLE. Witnesses:

MAX S. RosnNzwEIG, ETTA L. WHITE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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