US1764157A - Inking roller - Google Patents

Description

June 17, 1930. DUDLEY 1,764,157

I NKI NG ROLLER Filed' June 14, 1928 5206274? Mao/a T21407 J @M 7% Patented June 17, 1930 UNITED. STATES PRESS & MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A

ILLINOIS PATENT OFFICE EDWARD I. DUDLEY, OF OAK PARK, ILLINOIS, ASSIGNOR TO THE MIEHLE PRINTING oonromrion or INKING ROLLER Application filed June 14,

In the art of printing, it frequently occurs that several colors have to be printed simultaneously, that is to say, during one printing operation of the press. In such cases usually the ink fountain is divided into a number of sections corresponding to the number of colors to be printed simultaneously, and the composition rollers, whereby the ink is con- Veyed from the ink fountain to the printing surface of the press, are correspondingly divided into several sections. In such cases vibrating rollers, namely rollers which move laterally to and fro during the operation of i the press are impractical. Therefore, in order to meet such conditions, it is desirable to provide means whereby the vibrator mechanism of such vibrating rollers can be rendered ineffective at-will.

vent-ion is to provide simple means whereby the vibrating roller can be readily converted into a non-vibrating roller to adapt the inking mechanism for jobs where several colors are to be printed during one printing operation.

I Other objects of the invention willbe apparent fromthe following description and appended claims. v

In printing machinery, certain types of vibrating rollers are known inwhich the drive is not positive, i; e., the vibrator mechanism is driven by friction so as to avoid injury to any of the cooperating parts in the event that the vibrator mechanism is thrown into operation with its driving means out of time relationship with respect to the other operating parts of the press. 7

' One of the well-known constructions of vibrator mechanism comprises a laterally ex- Accordingly, the primary object of the in-' 1928. Serial No. 285,260.

tending threaded portion of'the, vibrating I the threaded shaft within said bushing, but

permits said bushing to rotate within the sleeve in the event that for some reason or other'the vibrating roller is out of time relationship with the other parts of the press at'the time said roller is placed in its operative position.

Ihave'selected to illustrate my invention as applied to such type of vibrator mechanism and I accomplish the objects of my inventionby means of the arrangement illustrated in the accompanying sheet ofdrawings, in which:"

Figure 1 is a plan view of the vibrator mechanism; I

Figure 2 shows a section taken along line 22 of Figure 1;

Figure 3 is a sectional VIGW' of the vibrator mechanism 1; and

Figure i is a cross-section through the vi.- brating roller shafttaken along line 4- of Figurel V V i According to the particular form of construction shown for the purpose of illustrat= ing my invention, the vibrating roller 10 is supported at both ends by means of brackets such as 11, keyedto ashaft 12,,which is pivotallymounted within the machine frame 13, One end of the vibrating roller, shaft 14 is formed with a screw portion 15 00- operating with a threaded nut or vbushing 16 rotatablysupported within the bearing 17 In order to apply; friction to the threaded bushing 16, so that'during the normal operation of the vibrating roller, said bushing will be prevented from rotating, and permit'the screw portion 15 of the shaft 14 to operate to and fro within the bushing, .1 provide a spring operated friction plunger 18 arranged as clearly indicated in v thecam surfaces 20 and 21',tlie-'p'lungeris' pulled outwardly against'theaction-of the compression spring 22.

Mounted upon the threaded end of-theshaft 14 is a split nut, or. collar 23 having a laterally extending projection 24,which' latter, under certain conditions, is adapted to move into engagement with alaterally extending projection- 25 on one of; theflanges of the threaded bushing 16 Secured to the outer end of the threaded extension of shaft 1411s a collar 26. having a'laterally extend ing stop 27, which, under certain conditions,

engages with a cooperating. projection 28' formed on the other. flange of the-threaded bushing 16.. l p

In view of the fact that, during the nor-'- mal operation of the 'inkingmechanism, the threaded bushing16does not rotate, it is apparent that" as the shaft 14 rotates, it will also be vibrated laterally due to itscooperation with the frictionally held bushing 16.

The figures of the'drawings show the shaft 15%,, and. therefore the vibrating roller 10, in the central'position of their vibratingmotion.

Let it be assumed that, with reference to Figure 3, the vibrating roller has moved to its extreme positionat theleft, and that at this time the press is stopped and the vibrator roller with itsroperating mechanism is disconnected from its-driving means. It is apparent under such conditions that, if the press were. advanced. for example a half cycle of its movement, while the vibrator mechanism is out ofengagementwith. its driving means, the vihrated'roller would subsequently be out of. time relationship. with the 'ress.

v If: for'inst'ance, the vibrator mechanism would, under such conditions, be moved back into operative relation, it is'e'vid'ent that the vibrating roller 156' would tend t'o move further to the left,'and were-it notfor the facttliat' the threadedbushing 16-.is f-rictionall'y supported, the cooperatingparts of the vibrator mechanism would become wedged, resulting obviously-"in the breakage of. certain parts. Y

. I: wish: it to: be understood, however; that thezprovisionof a trictional bushing operatiing. in a manner just, described, is "old in. itself and! does: not form; the-specific; object myin nt om q h e nb f ind cat I;v aimt p o rid imp ved vibr's crf ie hafii m whereby friction can be applied at will to a threaded bushing such as 16, and whereby the vibration of the vibrating roller can be varied at. will, or interrupted entirely by rendering the vibrator mechanism ineffective in a sim- 1319' and convenient manner.

As already described, the friction plunger .18 be readily moved out of frictional engagement with the bushing 16 by turning the-operating knob- 19 through 180, Now, the-friction between thethreaded portion 15 of the shaft 14 and the threadofthe'bushing 16' will not be overcome by the friction between the bearing. 17 and the bushing 16. Therefore, when the operation of the inking mechanismis continued, the. vibrating roller. 10 will rotate, but it willnot be displaced laterally,

In order to secure thevibrator. roller against any possible lateral movement or to vary the extent of its vibration, I provide onthe screw portion 15 the, split nut or collar 23, which, after releasingthe clamping screw 29,. can. be readily adjusted. longitudinally of the. screwportion 15 to any desired position corresponding with the amount of vibration required.

The collar 23; is shown on' the drawing; as being threaded onto the screw portion 15. It is obvious-,g however, .that a split collar with a plain bore'would; equally wellaccomplish the pu pose-in ie .As indicatedabove,.the friction: between the screw 15 and the thread in the; bushing 16 is greater than that betweenthe latter andthe bearing 17 so that when the plunger 18 is. in its inoperative position, the bushin 16 will freely rotate within its; beari11g 1 and consequently the roller 10; will not move laterally. 'However, when. it is desired to positively hold the roller lO against lateral movement,.after the-plunger 18' hasbeen withdrawn, the roller is moved; to its ex.- treme right hand position-in; Figure so that. the stop-'27 on the collar engages the projection 28'on1the' sleeve 16, then the set screw 29' isv released and the'collar 23 is moved. to the left untilits projection 01 pin 24; engages the; projection 25 on the sleeve 16,1 whereupon the 'set screw 29- is again tightened in order to securely clamp the collar to the thread portion 175.

g It will be readily understood that, without departing from the principle ofmy ill:- v'ention, various modifications could-be incorporated, and it is therefore" my intention to cover all such variations in construction as will. come within .the scope and. essence of the appended claims.

l claimz q 1, In. a printing press,;t lie' combination: of a vibrator roller having athreaded' shaft, a threaded bushingcooperating; with-said shaft and means for; applying frictional action. tosaid bushingwhereby said roller is vibrated and for withdrawing frictional action whereby said bushing acts as a bearing.

2. In a printing press, the combination of a vibrator roller having a threaded shaft, a

threaded bushing cooperating with said I of June, 1928.

shaft, means for applying frictional action to said bushing whereby said roller is vibrated and for withdrawing frictional action whereby said bushing acts as a bearing, and means for holding said bushing in a fixed position.

3. In a printing press, the combination of a vibrator roller having a threaded shaft, a threaded bushing cooperating with said shaft, means operable to apply friction to said bushing whereby said roller is vibrated,

and means to hold said roller against vibration.

4. In a printing press, the combination of a vibrator roller having a threaded shaft, a threaded bushing cooperating with said shaft, spring actuated means manually operable to apply friction to said bushing whereby said roller is vibrated, and means to hold said roller against vibration.

5. In a printing press, the combination of a vibrator roller having a threaded shaft, a threaded bushing cooperating with said shaft, cam actuated means to apply friction to said bushing wherebysaid roller is r vibrated, and means to hold said roller against vibration.

6. In a printing press, the combination of a vibrator roller having a threaded shaft, a threaded bushing cooperating with said shaft, cam actuated means manually operable to apply friction to said bushing whereby said roller' is vibrated, and means to hold said roller against vibration.

7. In a printing press, the combination of shaft, means for applying frictional action to said bushing whereby said roller is v1- brated and means for holding said roller against vibration.

Signed at Chicago, Illinois, this 12th day EDWARD F. DUDLEY.

a vibrator roller having a threaded shaft,

a threaded bushing cooperating with said shaft, means operable to apply friction to said bushing whereby said roller is vibrated,

and means comprising a split collar to hold said roller against vibration.

8. In a printing press, the combination of a vibrator roller having a threadedshaft, a threaded bushing cooperating with said shaft, manually operable means to apply friction to said bushing whereby saidroller is vibrated, and means comprising a split collar adjustable lon itudinally of said threaded shaft to hol vibration.

9. In a printing press, the combination of a vibrator roller having a threaded shaft,

a threaded bushing cooperating with said shaft, means operable to apply friction to said bushing whereby said roller is vibrated, and means to vary the amount of vibration V of said roller.

10. In a printing press the combination of a vibrator roller having a threaded shaft, a threaded bushing cooperating with said said roller against

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