US1543029A - Inking roll for printing presses - Google Patents

Description

June 23, 1925. 1.54:3,029 w. M. REECHART INKING ROLL FOR PRINTING PRESSES Filed Sept; 19. 1921 INVENTOR.

1/17/1220? M Ke/c/mrf ATTORNEW Patented June 23,

WILLIAM M. REICHART, or" CLEVELAND,

COMPANY, OF CLEVELAND, onto, A CORPORATION OF OHIO;

I mxmer ROLL FOR PRINTING rnnssns. I

' Application filed September 19, 1921. Serial,N'o. -501,564. L

To all whom it may concern:

Be it known that I, VVILLI'AM, M. ,REI- CHART, a citizen of the United States, and a resident of Cleveland,"county of Cuyahoga, and State of Ohio, have'invented a new and useful Improvement in Inking Rolls for Printing Presses, of which the following is a specification, the principle of the invention being herein explained. and the best mode in :which'I have contemplated applyingthat principle, so as to distinguish it from other inventions. I

The inking rolls used in printing presses, as is well known, are formed of a special, more or less resilient, composition, and due to the character of such composition it is not only difiicult to insure uniformdiameter vof said rolls. in the manufacture of same, but such diameteris apt to change under conditions of use. Inasmuch as the rollsin the course of their passage over the form are supported on metal rollers running on tracks, or equivalentsupports, such rollers being ordinarily merely the exposed ends of the metal base to which the aforesaid composition materialis attached, it will beiseen that any variation-in the diameter of the roll itself will cause avariation' in thepressure with which .it contacts with the form. This of course is objectionable for reasons that need'not'be detailed, andthe object of the present invention, accordingly, is the provision of means in the natureof an ad-' justable roller on the ends of such inking roll whereby the latter may be caused to bear with uniform pressure despite changes in diameter. 7

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims,

the annexed drawing and the following deradial apertures 14 formed in the outer scription setting forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms, in which the principle of the invention may be used.

In said annexed drawing Fig. 1 is abroken elevational view of an inking roll of the class described, one end thereof and the corresponding supporting roller being shown in axial cross-section; Fig. 2 is a view similar to Fig. 1, but show ing only one end of the inking roll and adjacent supporting roller, the latter being shown in di'fierent- -adjusted position; and Fig. 3 is a'transverse section through such supporting. roll, the plane of the section being indicated by the line 3 '3, Fig. 1'.

As illustrated in Figs. 1 and 2,;the inking roller is shown as passing over the form 1, which is supported on the bed 2 of the press; It is 1 a matter of indifference of course whether the latter be of the so-called Gordon or platen type, although the'swing arms 3, to which the ends of the roll are shown as being attached, are characteristic of such type. i The roller itself comprises a metallic core 4, the body. of, which is surrounded. by a layer 5 of the composition previously referredto," such core being mounted upon'a spindle 6, the'ends of which arerotatably held inor otherwise attachedtothe ends ofarms 3... I

'The rollers for supporting the inking roll are mounted onsuch spindle ends, between the ends ofthe cored and the adjacent .flm 3, and travel on tracks 9 on the bed 2, as shown-in-Figsyl and 2. Each such roller is built up of a sleeve 10, keyed or otherwise non-rotatably secured to spindle 6, ,-and formed at its inner end with a'beveled flange 11. Threaded on thesleeve 10; is a second sleeve 12 that isv formed with. a flange 13 beveled oppositely to flange 11 so that when the two parts just described are assembled a V-shaped groove is" formed therebetween. Suitable means are provided for locking the OHVIO, AssIeNon TO THE CHANDLER 65 PRICE two :sleeves together in vadjusted longitudinal position relative to each other, changes in such position varying the width of the V-shaped groove just referred to. Such means, as shown in the drawing, comprise the longitudinal keyways orgrooves 14, formed in the inner-sleeve, which are adapted to be engaged by pins, or screw studs, not shown, which may be inserted in the sleeve, as is shown in Fig. 1.

Mounted in the V-shaped groove between the beveled flanges 11 and "13 is an annular member or rim 15, which may, if desired, be provided with a tire 16 of hard rubber or like material such rim having its lateral faces beveled to correspond with said flanges 11 and 13. A radial pin 17 is tightly fitted in sleeve 10 adjacent flange 11 and engages a recess 18 inthe inner face of said member 15, whereby the latter is caused to rotate uniformly with said sleeve and so in turn to impart a positive rotative movement to the roll, as is desirable. In other words, said pin acts as a sort of key, the recess 18, however, being large enough to permit of the relative movement of the parts hereinafter set forth.

From the foregoing description it will be seen that when the sleeves 10 and 12 are adjusted so as to bring the flanges 11 and 13 as closely together as possible the rim 15 will be held fixedly therebetween, but upon moving flange 13 away from flange 11, and correspondingly Widening the groove therebetween the rim will be more or less loosely seated in such groove. Depending upon the width of the latter, the portion of such rim in contact with the track 9 will be forced radially inward toward the spindle, as shown in Fig. 2, with the result that the effective diameter, or rather radius, of the roller is correspondingly decreased. In this condition of the parts, the rim will have a rolling movement in the groove, but its effective radius, i. e., that between the por tion of the surface that contacts with the track and the axis of the spindle, will at all timesremain the same. It will be understood of course that the rolls 3 are necessarily under spring, or other tension, which serves to pull the inking roll towards the form, the function of the supporting roll.- ers being simply to limit such pulling action and to cause the roller to rotate as it passes across the form without relying on the rotative effect produced by direct contact of the roll itself with the form.

The foregoing construction provides an exceedingly simple and ready means for adjusting the pressure with which the inking roll is thus held against the form, and changes in the diameter of such roll may be readily compensated for by rotating the outer sleeve 12 on the inner sleeve 10 so as to vary the width of the groove between the respective beveled flanges carried by such sleeves, and thus allowing the rim of the roller to enter such groove more or less as occasion demands.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means'stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out anddistinctly claim as my invention 1-- 1. In an inking roll for a printing press, the combination with the roll spindle, of a roller for said spindle, said roller including a rim of fixed diameter surrounding said spindle, means for supporting said-rim on said spindle, said means being adjustable thus variously to support said rim from. concentric relation to said spindle to variable degrees of eccentricity therewith, and means restraining rotative movement of. said rim about said spindle.

2. In an inking roll for a printing press, the combination with the roll spindle, of a roller for said spindle, said roller including a rim of fixed diameter surrounding said spindle, oppositely beveled flanges on said spindle between which said rim is supported, said flanges being relatively adjustable longitudinally of said spindle, whereby said rim may be thus variously supported from concentric relation to said spindle to variable degrees of eccentricity therewith, and a radially projecting pin fixed with respect to said spindle and having loose engagement with said rim, whereby rotative movement of said rim about said spindle is restrained.

Signed by me, this 12 day of September, 1921.

WILLIAM M. REIGHART.

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