US833275A - Cylinder adjustment for printing-machines. - Google Patents

Description

N9. 833.275. PATENTED O GT. 16, 1906.

J'. WHITE.

CYLINDER ADJUSTMENT FOR PRINTING MACHINES.

APPLICATION FILED 0GT.6,1905.

2 SHEETS-SHEET 1.

[N VE N 70!? PATENTED 0OT.16, 190.6.

J. WHITE. CYLINDER ADJUSTMENT FOR PRINTING MACHINES.

APPLICATION FILED OCT. 6, 1965.

2 sHEBTs s-Hnm z.

. p m m m FW W amulticolor rotary hair/En s'riigps ATENT JQSEPH WHITE, 0F BOUNDBROOK, NEW? JERSEY, ASSIGNUE TO THE ALUMINUM PRESS, OF NEW YORK, N. Y., A CORPORAllGN OF NEW YORK.

No. 833,275. Specification of Letters Patent l atented Qct. 16, 1908.

Application filed October 6,1905. Serial Ila 231,707-

Zo @ZZ whom it may concern/r Be it known that I, J osnrn WHITE, residing at Boundbrook, Somerset county, State of New Jersey; have invented certain new and useful Improvements Relating to Cylinder Adjustments for Printingdtlachines, where fine adjustment both for the purpose of getting the propel printing-pressure and for the purpose of registering the designs with relation to each other, or" which the following is a specification. a i

In a multicolor-press such as is illustrated in the drawings it is desirable that these adjustments can be readily and positively made as well when the machine is in printing operation as when it is standing improvements herein shown are devised for these purposes.

Although the improvementsniay he readily applied to printing-machines of various descriptions, it ismore particularly adapted to a machine of the type illustrated, which is lithographic press. Referrin to the drawings, Figure 1 is an elevation 0% a two-colorplanograph-machine, such parts being shown as are necessary to illustrate the improvements embodied in this invention. Fig. 2 is an enlarged view of one of the cylinder-bearings. Fig. 3 is a tional view taken on the line 3 er- Fig.

Referring to Fig. 1, 1 represents the impression-cylinder of the machine. 2 is the ordinary gripper, operated in any usual or desired manner to take the sheets from the feed-board 3, and in the printing operation said sheet is carried around the impressioncylinder in the direction of the arrow, receiving the first impression from the design-face 4, which is a planograph form, preferably of aluminium, which has been clamped to the form-cylinder 5, and on its continued forward movement the sheet receives its second color from the planographic form 6, which is clamped to the form-cylinder 7, and con tinuing in its movement the sheet is delivered in the usual manner by mechanism. (Not shown.)

The cylinders 1, 5, and 7 are geared together by gears fastened to' their respective shafts, said gears being equal in pitch diameter to the printing-surfaces.

it is necessar that the two desi ns imstill, and the I pressed upon the sheets in the printing oporation must be in exact register with each other and both laterally and circumferentially, and in order to facilitate lateral adjustment while the press is ruiniing or stationary l have provided the following rnethods, which accomplish this purpose posi tively: The usual form of'niounting a print lug-cylinder is to have the cylinder mounted so as to beguided laterally between fixed shoulders 1n supporting-frames or 3ournalboxes and in this case when lateral ad ust- I ment or iorms are required 1t 18 necessary to stop the machine and loosen the forms from I their fastenings, ad ust the form on the cylinder, andreclainp the same. in the method shown the cylinder is so mounted that can be cylinder finds its bearing. This journal 1]. is

provided with a projection 12, fastened to which is a collar 13. The inner face of this collar 13 and projection 12, it can seen, forms an annular groove; In this annular groove is placed the sleeve 14, which is laterally a'djustable to the cylinder box and forms the adjustable uidc which holds the cylinder in its proper ateral position. The manner in which this guide may adjusted may be varied widely; but in the construction shown, which is the preferred form, the

cylinder box or bearing 8 has a part attached to it in relatively fixed lateral 1011, preferably in the form oi" the lfilitiloilll) lo, which is genera circular in form an d contains a hollow threaded cylindrical portion 16, which encircles the cylinder and 12, the hole of which being somewhat larger than the cylinder Although shown fastened to the cylinderb-oi: and'ierming a p of it, thebraclret 15 or its mechanical. equivalent might readily be fastened to the frame instead. W

this part, which is relativl-zlylatcially fixed in ousted on der laterally in the direction required ac- ,the impression-cylinder.

{preferred form is shown in my companion and works into the annular roove formed at the end of the cylinder it wil carry this eylinr cordingly as this nut is adjusted inward and outward. The manner in which this sleeve may be adjusted may be varied widely but it is preferable to operate it in the manner shown by means of a screw or worm, as in this way a very fine adjustment can be readily effected, and at the same time it is self-locking. Upon the outer portion of the sleeve 14 is formed teeth, making it, in effect, aworm-gear in which meshes the adjustingworm 17, said worm being mounted on a spindle 18, which iinds its bearing in the fastened to the bracket 15, said spindle having pin-holes for the purpose of moving same. When this worm is moved in one direction or the other, it will, through the parts shown, carry the cylinder laterally in c direction required.

In a machine of the type shown it is necessary for various purposes-such, for instance, as when a sheet is missed or on inking up on starting'the job-to bring the form-cylinders to and from the impression-surface at the' will of the operator, and in the construction shown this is accomplished by eccentrically mounting the form-cylinders in cylindrical bearings and rocking said bearings, so as to move .the center of the cylinder to and from The manner .in which this moving may be accomplished does not form part of this application but a application, Serial No. 28l ,708.

v i he cylindrical 'ournal-box 8, mounted in the frame 9, is held laterally in position by means oi the eyepiece 20, which is connected to the tripping mechanism and the llange 21 on the ct ier side.

It can be seen that the mechanism for lateral adjustment being contained on the cylinder-bex is not in any wise all'ected by the movement of the eccentric box and can just as readily be adjusted, no matter what position the eccentric boxmay be placed in.

As has been previously mentioned, the 'ournnl-box 8 is provided with the sleeve 1%). .lhis sleeve is supplicd'l'orthe purpose oi efi'ecting the pressure-regulation required, said sleeve being ecccntrimlly mounted in the journal-box 8, and therefore when it is rotated in said box it tends to vary the printingpressure when said pressure is a )plied. The manner in which this sleeve is adjusted is, as can be seen, similar in design to the iarts amomplisliing the lateral adjustment.

' cylinder mounted e flange 22, orined on the outside eccen tric sleeve 10, has teeth which serve as a worm-gear for the pressure-adjusting worm which is mounted on the spindle 24, which finds its bearing in" the lugs 25 and the cylinder-box 8, and. as said worm-gear is moved in one direction or the other it will increase or relieve the pressure, as re uired. It can be seen that by this method t e adjustinent can be effected while the press is running and also regardless of the position in which the eccentric box is placed when triping or putting the cylinders in impression.

t is to be noted that bracket 15, which serves the purpose of holding the lateral adjustment parts, also acts as a guide in which the flange 22 of the pressure-regulating sleeve 10 is guided.

- I claim 1. In a printing-machine havin a formin a pair of cylinger bexes said boxes being movable for the purpose oi tripping the cylinder, and parts mounted on acylinder-box whereby the cylinder may be adjusted laterally; said cylinder-boxes and associated parts arranged so that the formcylinder may be moved to and from the impression-cylinder without disturbing the lateral adjustment of the form-cylinder.

2. In a printing-machine having a formcylinder eeeentrically mounted in cylindrical c 'linder-boxes, said boxes arranged to partially rotate for the purpose df tripping the cylinder, and parts inouritden a cylinder.- box whereby the cylinder may be adjusted laterally; said cylinder-boxes and associated parts arranged so that the form-cylinder may be moved to and from the impressioncylinder without disturbing justment oi'' the form-cylinder. 7

3. In a printing-machine having a formcylinder eccentrically mounted in cylindrical cylinder-boxes, said boxes arranged to partiall y rotate for the purpose of tripping the cylinder, and parts mounted on a cylinderbox whereby the cylinder may be adjusted laterally, and means for locking said parts in their lateral adjustment; the cylinder-boxes and associated parts so arranged that the form-cylinder may be moved to and from the inlpression-cylinder without disturbing the lateral adjustment of the form-cylinder.

4. in a printirig-machine, the combination of ,a cylindrical cylinder-box in which the cylinder is eccentrieally mounted, an eccentric journal sleeve in the cylinder-box, a part laterally lixed 'on the cylinder-box and a part laterally adjustable on said fixed part, the laterally-adjustable part engaging the cylinder end. to locate the cylinder laterally.

5. In a printing-mac line, the combination of a cylindrical cylinder-box in which the clyinder is eccentrically mounted, a wormadd'usted eccentric journabsleevi: in the'eylin er-box, a part laterally fixed on the cylindenbox, and a part laterally adjustable on the lateral ademlly-adjusteble end to locate the said fixed part by means of eworm, the lat part engaging the cylinder cylinder laterally.

6. In a printing-machine, meens for adjusting a form-cylinder laterally, comprising in combination a hollow externally-threaded cylindrical pert fixed to the cylinder-box; an internally-tlueaded nut engaging said fixed pert, having a flanged portion engaging an IO annular groove at the form-cylinder end; a

worm engaging said nut for the adjusting the orally.

In Witness whereof I have hereunto set my purpose of nut to locate the cylinder lathand in the presence of two subscribing wit- 15 IIGSSGS.

JOSEPH WHITE. Witnesses: i

AUGUSTA WHITE, G. W. HALL.

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