US1809632A - Inking mechanism for printing presses - Google Patents

Description

June 9, 1931. H. LANG 1,809,632

INKING MECHANISM on PRINTING PRESSES Filed Aug. 17, 3.939

1 HUBER'I LANG, O

Patented June 9, 1931 PATENT 1? LA GRANGE, ILLINOIS; nssisnon rowan GOSS RINTING PREssoo.. or CHICAGO, rumors, A oonroaarrron or ILLINOIS INKING MEcHANitsI-u Fort lEB-INTiNG rnnssns Application filed August 17, 1929. Serial No. 386,563.

My invention relates to inking mechanisms for printing presses and it has for its object theprovisionof a new and improved form and arrangement of parts for transferring i the'ink from the fountain roller to the adjacent ink drum or other cooperating part. It is one of the objects of my invention to providea construction of'this type by which improved supporting means shall be provided for the oscillating roller by which the ink is taken from the fountain roller, the arrangement being such that the operating parts may be driven at high speeds without undue vibration of the parts. To this end, it is one of the objects ofmy invention to provide supporting means for the oscillating roller of such arrangement that the roller'is adjustably supported from rigid, stationary supporting means located closely adjacent to the roller for cutting the vibration down tothe minimum and serving to insure smoothness of operation.

It is one of the objects of my invention to provide a construction by which the change 5 in position of the oscillating roller for the de sired transfer of the ink may be effected by movement ofthe roller about an axis located closely adjacent to the axis about which the oscillating roller rotates and preferably about an axis located close to the centerof gravity of the roller, whereby a substantially baianced movement maybe had about such axis in contrast to an unbalanced movement about an axis located at a distance from the center 5 of gravity. It is one of the objects of my invention to prov1de a construction in which the bearings serving as the immediate supports for the transfer roller are themselves mounted so as to have rotary motion about an axis slightly eccentric to the axis of the roller, and to provide means for giving such bearings oscillatory movements-in timed relation to the operation of the ink drum for moving the transfer roller between the fountain roller and the ink drum.

justments with respect to the alignment of the transfer roller. It is still another object of my invention to improvedevices of this type in sundry details'hereinafter pointed out.

The preferred means bywhich I have accomplished my several objects are illustrated in the accompanying drawings and are hereinafter specifically described. That which-I believe to be new and desire to-cover by this application is set forth in the claims.

In the drawingsf- Fig. 1 is a diagrammatic view'showing the relative position of the transfer roller between the ink drum and the fountain roller.

Fig. 2 is a view as seen from the right in Fig. 1 but with the ink fountain and roller rem'oved;and I 1 Figs. 3 and 4 are enlarged detailed views;

being vertical sectional views taken on lines 33 and 1 1 respectivelyof Fig. 2.

Referring to the drawings, in which correspondlng parts are indicated by the same reference'characters, 10 indicates the frame of a printing press comprising standards in spacedrelation between which an ink drum 11 is mounted through the medium of a shaft 12. Adjacent to the ink drum 11, I have'provided an ink fountain 13 of any approved type proparts 17; comprises a; shaft or trunnion 18 revolubly mounted in the standards of the frame-work 10 said shafts or trunnions 18 being in axial alignment with each other.

At their inner ends, themovable bearing parts 17 are provided with two-part journal boxes 19in which the shaft 16 of the transfer roller 15 is mounted in eccentric positionwith' respect to the trunnions 18.

' As will be readily understood, particularly by reference to the diagrammatic showing in Fig. 1, when the movable bearing parts 17 are given rotary movements in unison about the axis of the trunnions 18, the transfer roller 15 isamoved into contact alternatively with the fountain roller 14 and the ink drum 11, by reason of the eccentricity of the mounting of the roller as compared with the mounting of the movable supporting parts.

For giving the movable supporting parts the desired oscillatory movement in unison, I have provided a rock shaft 20 revolubly mounted between the standards of the framework 10, such rock shaft 20 having an arm 21 fixedly mounted thereon extending toward the movable supporting part 17 at one side of the machine and a similar arm 22 mounted loosely on the shaft and extending toward the movable supporting part 17 at the other side of the machine. For causing the arm 22 to swing about the axis of the shaft 20 as said shaft is given a rocking movement from any suitable source of power, I have provided a bracket 23 fixedly mounted upon. the shaft 20 adjacent to the arm 22, said bracket 23 comprising a longitudinally extending yoke portion at opposite sides of the arm 22 set screws 24 carried by the arms of the yoke being adapted by contact with the arm 22 to hold such arm 22in adjusted position with respect to the shaft 20and accordingly in adjusted position with respectto the arm 21.

Eachof the arms 21 and 22 is provided on its outer end with a segmental gear 25 which meshes with a segmental gear 26 carried by the adjacent movable supporting part 17. The arrangement is such that when the rock shaft 20 is given a rotary movement in clockwise direction in Fig. 1, serving to cause the arms 21 and22 to swing toward the right in said Fig. 1, the movable supporting parts 17 are given rotary movement in counter-clockwise direction in said figure, serving to carr the transfer roller 15 out of. contact with the fountain rollerl l and into contact with the inkdrum 11. It will be understood that upon reverse movement of the shaft 20, the transfer roller 15 will be moved out of contact, with the drum again into contact with the,

fountain roller 14.

By the provision of the adjustability through the use of the bracket 23 and. set screws 24, the movable supporting part 17 at one side of the machine is adapted to' be given. a slight rotary movement with respect to the movable supporting part 17 at the opposite side of. the machine whereby the'aligns ment of the transfer roller 15 can be adjusted slightly asv may be required.

By the use of my construction, in which the transfer roller 15 is provided with rigid supports closely adjacent to the axis of the roller, the transfer roller is made capable of oscillating with considerable rapidity without setting up any undue vibration. By

the use of my construction, a nicely balanced arrangementcan readily be provided whereby the movement of the transfer roller is effected with a maximum of ease.

While I prefer to employ substantially the form of construction as illustrated in my drawings and as above described, it is to be understood that I do not limit the invention to the form of construction shown except so far as the claims may be so limited by the prior art, it being understood that changes may well be made in the form of the construction without departing from my invention.

I claim v 1. In an inking mechanism, the combination of an ink fountain, a fountain roller revolubly mounted therein, an ink drum in parallel relation to said fountain roller at a short distance therefrom, a transfer roller, means for supporting the transfer roller comprising movable supporting parts between which said' transfer roller is'revolubly mounted and rigidly stationary parts by which said movable supporting parts are revolubly supported. in close proximity to said transfer roller on an axis in slightly eccentric position with respect to the axis of the roller, means for adjusting one of said movable supporting parts circumferentially with respect to the other for changing the alignment of said transfer roller, and means for giving said movable supporting parts rotary movements in unison in alternately opposite directions for moving said transfer roller into contact alternately with said ink drum and said fountain roller.

2. In an inking mechanism, the combination of an ink fountain, a fountain roller revolubly mounted therein, an ink drum in parallel relation to said fountain roller at a short distance therefrom, a transfer roller,

y means for supporting the transfer roller comprising movable supporting parts between which said transfer roller is revolubly mounted and rigidly stationary parts by which said movable supporting parts are revolubly supported in close proximity to said transfer roller on an axis in slightly eccentric position with respect to the axis of the roller, a rock shaft revolubly mounted a short distance from the axis of said movable supporting parts, and gearing connecting said rock shaft with the movable supporting parts respectively for giving them rotary movements in unison in alternately opposite directions for moving said transfer roller into contact alternately with said ink drumand said fountain roller.

3. In an inking mechanism, the combination of an ink fountain, a fountain roller revolublymounted therein, an ink drum in parallel relation to said fountain roller ata short distance therefrom, atransfer roller, means for supporting the transfer roller comprising movable supporting parts between which said transfer roller 'is revolubly mounted and rigidly, stationary parts by which said movable supporting par-ts arerevolubly supported in close proximity to saidtransfer roller on an axis in slightly eccentric position with respect to the axis of the roller, a rock shaft revolubly mounted a short distance from the axis of said movable supporting parts, segmental gears carried by said movable supporting parts respectively, and other segmental gears carried by said rock shaft and meshing with said first named segmental gears for giving the movable supporting parts rotary movements in unison in alternately opposite directions for moving said transfer roller into contact alternately with said ink drum and said fountain roller.

4. In an inking mechanism, the combination of an ink fountain, a fountain roller revolubly mounted therein, an ink drum in parallel relation to said fountain roller at a short distance therefrom, a transfer roller, means for supporting the transfer roller comprising movable supporting parts between which said transfer roller is revolubly mounted and rigidly stationary parts by which said movable supporting parts are revolubly supported in close proximity to said transfer 25 roller on an axis in slightly eccentric position with respect to the axis of the roller, a rock shaft revolubly mounted a short distance from the axis of said movable supporting parts, segmental gears carried by said mov- 30 able supporting parts respectively, other segmental gears carried by said rock shaft and meshing with said first named segmental gears for giving the movable supporting parts rotary movements in unison in alter- 35 nately opposite directions for moving said transfer roller into contact alternately with said ink drum and said fountain roller, and means for adjusting one of said segmental gears circumferentially with respect to the 4.0 other segmental gears for changing the alignment of said transfer roller.

5. In an inking mechanism, the combination of an ink fountain, a fountain roller revolubly mounted therein, an ink drum in par- 5 allel relation to said fountain roller at a short distance therefrom, a transfer roller, means for supporting the transfer roller comprising movable supporting parts between which said transfer roller is revolubly mounted and 5s rigidly stationary parts by which said movable supporting parts are revolubly supported in close proximity to said transfer roller on an axis in slightly eccentric position with respect to the axis of the roller an E5 arm mounted in fixed position on said rock shaft and extending toward one of said supporting parts, a second arm mounted adjustably in position on said shaft and extending toward the other of said supporting parts, and segmental gears carried by said arms and meshing with said first named segmental gears respectively.

HUBERT LANG.

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