US1033528A - Bearer for printing-presses. - Google Patents

Description

G. E. BRANNBERG. BEARER FOR PRINTING PRBSSBS.

APPLICATION FILED SEPT. 55, 1911.

COLUMBIA PLANOORAPH C0,. WASHINGTON, II. C-

G. E. BRANNBBRG.

BEARER FOR PRINTING PRESSES.

APPLICATION FILED sums, 1911.

1,033,528. Patented July 23, 191.2.

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GIDEON E. BRANNBERG, OF JOLIET, ILLINOIS.

BEAR/ER FOB PBINTING-PRESSES,

messes.

To all whom it may concern:

Be it known that I, GIDEON E. BRANN- nnao, a c1tizen of the United States, res1ding at Joliet, in the county of WVill and State of Illinois, have invented certain new and useful Improvements in Bearers for Printing-Presses, of which the following is a specification.

This invention relates to printing presses, and more particularly to automatically adjustable inking roller tracks for the same.

Another object is to provide a structure of this character which may be easily attached to a press without great alteration of its form, and which will be operative by means on the inking roller frame.

Other objects and advantages will be apparent from the following description and it will be understood that changes in the specific structure shown and described may be made within the scope of the claims with out departing from the spirit of the invention.

In the drawings: Figure 1 is a side elevation of a portion of a printing press with my tracks applied, the same being shown retracted. Fig. 2 is a similar view showing the rollers midway of their vertical movement. Fig. 3 is a fragmentary top plan view in which only one of the tracks 16 is shown. Fig. l is a side view from the inner side of the press partly broken away.

Referring to the drawings, 10 represents one of the side plates of the frame, of a press, in which is journaled the usual shaft 11 on which is mounted an ink roller carrying frame 12. The forward part 13 of the plate 10 forms the track on which the bearing rollers 14 of the ink rollers 15 run in a movement of inking the type. Mounted on each of the said plates 10, (only one being shown) is an adjustable track 16, which has its edge face 17 formed so as to coincide with the edge face 13 when said plate is in its innermost retractive position. This plate has an upper horizontally arranged elongated slot 18, and a lower smaller similarly shaped and disposed slot 19, through which are passed the screws 20 and into the plate 10 to hold the plate in proper position to slide horizontally, through the washers 21 being disposed between the heads of the screws and the face of the plate 16. The rear portion of the plate 16 has an inclined face 22 against which is adapted to bear the curved face 23 of a stud 2 1 in the up- Specification of Letters Patent.

Application filed September 5, 1911.

Patented July 23, 1912.

Serial No. 647,598.

Formed in the lower portion of the i most position, said pawl being mounted on y the plate 10, and held in normal upward position by means of a coil spring 28. A. downward extension 29 provides a vertical wall 30 against which the nose 27 of the pawl is adapted to engage when the plate 1s in its innermost retractive position.

Assume the rollers to be in the uppermost position and in the act of. inking. In this position the plate 16 is in its projected position with the nose of the pawl against the shoulder 25. As the rollers move down on the edge face of the plate said rollers are held away from the face of the type and therefore do not distribute any ink thereto. As the roller frame reaches its limit of downward movement it will strike against a lateral lug 34 on the end of the pawl, and force the same downwardly from behind the shoulder 25, and under the tension of the springs 31, the plate 16 will be retracted until its edge face is in practical alinement with the edge face 13 of the plate 10, the pawl engaging then against thewall 30. In the meantime, the stud 2 1 has reached the lower end of the inclined face 22. Now when the rollers move upwardly, the type will be inked, but when the curved face 23 of the stud 24 engages against the inclined face 22 it will gradually force the plate 16 horizontally outward, the plate being guided in this direction by the slots and screws, so that the rollers after passing across the type will be moved outwardly together with the .plate 16, the pawl dropping behind the shoulder 25 by means of the spring 28, and holding the plate in its outward position ready for the rollers after passing over the ink plate to again descend. Thus the rollers pass over the type once, that in going upwardly, it having been found that when the rollers pass downwardly over the type with the ink and spread the same thereon, the thickest part of the ink is on the upper part or that first engaged by the rollers, which also is the last part engaged in the upward motion so that this part of the printing surface is supplied with too much ink. By my device this is obviated as the rollers are adapted to move above the type in the downward movement.

By means of the stud 24; a positive outward movement of the plate 16 is assured, and its positive position when moved out wardly is also assured by the pawl 26. It will be understood that when the roller frame moves the pawl from the shoulder 25, the springs 31 immediately retract the plate so that the rollers can engage the type.

\Vhile I have shown and described only one of the tracks 16 it will be understood that there are two, one on each of the side plates 10, and of identical construction.

WVhat is claimed is:

1. The combination of a printing press having a pivoted frame carrying inking rollers, and roller tracks, of plates slidably mounted on the press adjacent the said tracks, an inclined edge face on the rear of each of the plates, means on the roller frame for engagement with said inclined faces to move the plates outwardly during one direction of movement of the frame and means on the press for engagement with the plates for holding said plates in outward position.

2. The combination with a printing press having an inking roller frame and roller tracks, of plates mounted on the sides of the press adjacent the tracks and horizontally slidable thereon, means on the roller frame for engagement with the said plates for moving them into outward position means for holding the plates in outward position, and means on said holding means for engagement by the roller frame, whereby said holding means will be released and the plates moved inwardly.

ln testimony whereof I aflix my signature in the presence of two witnesses.

GIDEON E. BRANNBERG.

Witnesses Josnrn N. BRANNBERG, JOHN E. BRANNBERG, J r.

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

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