US2104044A - Method and apparatus for the decoration of elongated surfaces - Google Patents

Description

Jan.4,1938. Q D Km@ y 2,104,044l

METHOD AND APPARATUS FOR THE DECORATION OF ELONGATED SURFACES BY@ l o. D. KING METHOD AND APPARATUS FOR THE DECORATION OF ELONGATED sURFAcEs I Jan. 4, '1938.

Filed July l0, 1936 v 3 Sheets-Sheet? o. D. KING 2,104,044

Filedl Jllly l0, 1956 3 Sheets-Sheet 5 Err Q sa

nNTOR. BY A u rToRNEY- Jan. 4, 1938.

' METHOD AND APPARATUS FOR THE DECORATION OF ELONGATED sURFAOEs plied.

Patented `Ian. 4,* 17938 UITEDY-51TA'1ES PATENT', ori-*ICE METHOD AND APPARATUS FORYTHE DEoo y RATIoN oF ELoNGA'reD sURFAoEs i Orville Doering King, Dayton, Ohio, assigner to Oxford VarnishlCorporaton, Detroit, Mich., a corporation of `Michigan ,Y Y

Application July 1o, 1936,' serial Nacar Y vicclmims; l(el, 10i- 154)V i V Thev present invention Arelates to a method and Vapparatus for decorating materials, and more particularlyto a-methodand apparatus for decorating surfaces when anoffset; impression processis f5 used to apply a decorative transfer to anA article of. manufacture. Y Y l Y r,The present invention is an improvement over 1 the methodand apparatus' described, illustrated Y and claimed in Patent No. 2,047,718 issued to my 1 '0 assignee, Oxford` Varnish Corporation, JulyV 1.4,

. An object o f the present invention -is toY provide a method and .apparatus for the decorating of surfaces, the useof which will permit wide variations of coloratones and even designs, ina rapid and economical manner. I prefer to vaccomplish these objects by transferring the inkedV design of two patterns to the same'offset printing rolls and u subsequently,transferring the composite design to f2() the surface tobe decorated in one continuons roll- -ingmovementw Y, y

Afurtheriobject ofthe invention is to provide anapparatus which will effectively apply to an offs/et transfer roll decorative designs carried bya plurality of printing cylinders, whereby several designs may be applied to the transfer roller simultaneously, one design being superimposed Von Vthe other, or spaced therefrom as desired.'

The specific application of the method and apel paratus herein shown is particularly adaptable for industrial use'forV the decoration of surfaces or articles of manufacture, which are comparatively long, relative to the .width thereof, and' upon which surfaces the decorative designs may be apvIn the art of Vdecorating articles ,of manufacture, as, for instance, surfaces of sheet metal, a design may bereproduced on a pattern cylinder Vby a photomechanical process.V Usually, such de- 40 signs are etched on the surface of the cylinderr in `suoli a'. mannerlas to form an intaglio' printing surface.V The color, such as ink or argraining paste o-r paint, oftheproper consistency, isthen applied to the pattern andthe excesscolor removed by a suitable scraping action, as, for in- Astancaby a ydoctor blade. A soft, resilient sur-n faced" transfer `roll isthen brought into rolling contact with the pattern, thereby transferring the design in' color to such transfer roll, which is 15,0 thereafter brought into rolling Contact with vthe surface to be decorated, `applyingnthe design in color thereto. 'Ihis process, as well as variations of such. process, is generally well knownand in use at the present time.

When framings andotherjarticles which pre-V Surfaces sent elongated surfaces are tobedecorated, it is vC'leS'irabIetol'so decorate these] surfacesthat the patterns or designs Will not be'repeated on theVA samev'surface or strip. In the past,`this hasfbeen L1J accomplished Yby'pfroviding pattern and transfer 5 rolls having -circumferences greater than the length of the stripto bedecorated. However, as the length of the strip increases, such rolls become unwieldyi This is especially disadvanta-V geous when the offset ortransfer roll is manually 10 rolled across the work. Further, these transfer rolls are generally made of a gum or glue and glyc'erine composition, and being quite resilient,

the tendency of the rolls is to becomev distorted i -and this increases as'the diameter of the rolls is 15 increased. This makes itrdifiicult to obtain accu-V rate productionof the pattern. Likewise, cumbersome mechanisms are required to' mechanically transfer the patternto such large offset rolls; f

Furthermore, in the decoration of the internall 26 v surfaces, especially frames having curvilinear in ternal corner surfaces, such-as Vvauton'iotive window frames, the diameter of the transfer or offset is limited by the size' of the Vopening in the frame,

andnot by theinternalperimeter thereof, as the 2,5

roll fmust be of av diameter smallenough to permit the entrance of the roll intoy the frame, aswell asv s to permit the imprint of rounded internal corner hayingfV comparatively small radii.` .1` Therefore,Y an additional object of the present in'- 30 vention :is` to provide amethod andapparatus tofacilitate the graining of the elongated surfaces, such as window frames, moldings and the like .for automotive bodies by an offset printing process,

. which will permit af design in a plurality of tonesY 35V Vor colorsmto'be transferred tothe elongated surfaces of such articles by manually rolling one comparatively small offset roll-along the surface thereof.

It is a further object of the present invention ,tov 40 provide a method and apparatus which will per- Y miteconomical graining of elongated surfaces by simultaneous application of a plurality of'A designs or colors thereto.`V`

Likewise, an objectr of this invention is to pro- 45 l ,A

of the oifset roll and independently transferring such designs to the work to form a composite design thereon.

Further objects of the present invention will become more apparent from the following description, which refers to a preferred form of apparatus, especially adapted and arranged for carrying out my improved method. The essential features of the invention will be summarized in the claims.

Referring now to the drawings, Fig. 1 is a side elevation, a preferred form of apparatus for carrying out my improved method, certain .parts of the apparatus being broken away to more clearly illustrate the internal construction thereof; Fig. 2 is a plan view of the apparatus; Fig. 3 is a horizontal section through the pattern rolls, as indicated by the line 3 3 on Fig. `l1.; Figs. 4, 5, and 6 are Vertical sections, as indicated bythe correspondingly numbered lines on Fig. 1; Fig. '7 is a ,diagrammatic view illustrating a manner of transferring the design from the transfer oroffset roll `to the work.

My improved method comprises, in general, the provision of two patterns, the length of veach of which is greater than .the length `of `the strip to bedecorated. These patterns may be in the form of cylinders, the circumferences of which are longer than the strip to lbe decorated. The designs may be applied to the patterns in any well known manner, such as photomechanically. However, I prefer to apply .the design to form a continuous pattern on the roll, as explained and claimed in Patent No. 1,944,200, issued to Guido Von Webern, January 23rd, 1934, and assigned to my assignee, Oxford Varnish Corporation. Color or ink is applied to the pattern, and the excess color removed .by a doctor blade in the.

usual manner. An offset printing roll, having a diameter considerably less than the diameter of Y the pattern roll, but having a greater surface width than the pattern, is then brought into rolling contact with both patterns simultaneously. The offset roller is brought into `rolling contact with the pattern rolls in such a manner that the patterns are applied in the same spiral path on such -offset roll, one pattern being superimposed upon the other pattern. The work being in strip form, the offset roll is rolled therealong in a path at an angle to the long `dimension of the Work. Thustwo colors may be simultaneously applied to the work by the pattern roll.

The designs of the two pattern rolls may be the same, the colors applied thereto may differ. Likewise, the designs may vary, or be either in or out of registration with each other,that is,

while the color from both patterns is transferredy to the offset roll along the same spiral path, the design of the two rolls may register to such an extent that neither color overlies the other or that only predetermined portions of the design overlap, thus producing a three-color effect. It is also contemplated that the pattern rolls may be so arranged that the one design may be transferred to the offset roll slightly out of registration with each other, to thereby obtain an effect similar to that provided in Reissue Patent No. 17,912, dated December 30, 1930, and assigned to my assignee, Oxford Varnish Corporation.

While I have described my method above, as relating to an arrangement of pattern rolls wherein the patterns are applied to the offset roll in a superimposed arrangement, namely, the same spiral path, I nevertheless contemplate the application of the patterns to the offset roll in the form of a double spiral,-that is, the transfer from one pattern taking one spiral path on the offset roll, and the transfer from the second pattern, taking a second spiral path, on the offset roll, in the nature of a double threaded screw, so that the patterns will lie side by side. The operator may then decorate the work with one color, using one spiral path, and subsequently decorate the same work, or another piece of work, to which the rst pattern had been previously applied, with a second spiral pattern on the transfer roll, thus superimposing the twov designs, one on the other, on the work, rather than on the transfer roll, in this manner the overlapping of the pattern may be varied by the operator for substantially each workpiece, thereby preventing exact duplication of the design on various workpieces without departing from the general characteristics of the design.

As illustrated in the apparatus shown in the drawings, .the axis ofthe offset roll is positioned at an acute angle to the axes of the pattern rolls, and the offset roll is moved along its own axis, simultaneously with its rotary movement. The pattern rolls are preferably rotated about a common axis, and are constrained from any axial displacement relative to the transfer roll, other than through the predetermined amount above stated. This elfectually transfers the design from the pattern roll to the offset roll, and particularly due to the characteristics inherent in offset printing rolls, used in this `type of work, there is substantially no blurring of the design during its transfer. The relative axial travel of the offset roll is preferably controlled by its frictional contact with the pattern roll. The offset roll is then removed from the transfer apparatus, and rolled across the work, as indicated in Fig. '7. The axis of the roll is maintained at all times at an angle to the strip to be decorated, to cause the spiral pattern to be transferred to such strip with the grain lines or pattern thereof substantially parallel with the edges of the strip. Obviously, this angle is determined by the angle maintained between the offset roll and the pattern rolls at the time the patterns were applied to the offset roll. Such method permits the use of an offset roll having a diameter comparatively small in relation to the diameter of the pattern rolls, and hence, is readily handled by the operator to manually roll it across the work. Likewise, since the oifset roll is small in diameter, there is less tendency of the roll to become lopsided or flattened, asthe periphery thereof is closer to the axis of the roll. This smallness of the transfer roll in diameter facilitates the graining of internal surfaces of frames and the like.

The apparatus shown in the drawings comprises a motor-driven mechanism, to apply a two-colored combination pattern to an offset or ,composition roll either in a single spiral path, that is, one pattern superimposed upon the other, or a double spiral path, that is, one laid spirally alongside of the other. The patterns may be supplied with the same or different colors, they may be lined or ruled off, linearly or form blocks, or other geometric combinations in ink or suitable printing fluid or paints of any desired color or description, which designs may be in accurate registration or out of registration, as desired.

As shown in the drawings, and especially in Figs. l and 3, there is provided two pattern rolls I and Illa. Each pattern roll comprises a drum l I, having about its periphery a suitable pattern fthe pattern roll Illa., and the pulley 38.

plate I2 or I4. k'These rolls are rotatably journalled on a compound shaft I5, one end of which is journalled in a bushing I6, carriedby an up.- right frame member I 1 andthe other endfof which is journalled in a bushing I8, carried by another upright frame -member I9. The two frame members I8 land I9 are supported by a base 20. ff',

The shaft vI5 comprises atwo-part shaft to facilitate vthe removal of the pattern rolls from Vthe machine. As shown in Fig. 3, the righthandside of the shaft I5 comprises a shaft member 22, the inner end 23 of which is `jourv nalled in a stub-shaft member24, which com` prises the left-handV end of the shaft I5; The right-hand end of the shaft 22 isprovidedwith a knurled head 25 by means of which the shaft A may readily be removed fromthe machine to facilitate removal of the rollsV Ill and Illa. A

vset screw, such as that indicated at 26, is'provided, to prevent withdrawal of the shaft mem- Yber 22 under normal operating. conditions.

The pattern rollsA arecontinuously,rotated byA a motor ?(Fig. l).l vThismotor is supported by the .base 2li of the machine and is drivingly connected to a gear-reduction unitA 3IV. The driving shaft 32 of thegear reduction unit carries a pulley 33, which, by means of a. driving belt 34, drives a pulleyr35 secured to Ythez'shaft member 24,.V kThe pulley Y3l) isfdrivingly connected'with the patternrolll I0 by, a pin 36, such pattern roll being in turnf drivingly vconnected to the second --pattern roll Illa,'bya similar pin 3 1, and the pattern roll Illa, isinturn drivingly 'connected' to a pulley 38, bya similarv pin'39. Y The latter pulley is rotatably journalled on the'shaft I5 and is drivingly connected toan inking mechanism, as will hereinafter be more fully described. Y

-As shown in Fig. 3, a series of' washers or collars 40 are mounted on the shaft I5, inter- 1 mediate the various units carried bythe shaft I5, namely, the pulley. 35, the pattern roll/I0,

therpattern rolls It. and Ia7 may be adjusted relative to each o-ther in an axial direction yby rechanging the locations of various collars 40. Thus, I am able to secure eithera singlefor double spiral of` the Vpattern carried by the patterns IB and Ia on the offset roll mounted thereabove, as will be hereinafter more fully described.

Pigment is supplied to each pattern` roll byl respective ink rollsV 4I, mounted beneath the Arespective patternsV and having'their lower regions in respective reservoirs of ink 4'.Z,whichV is Vsupported between the frame members I'I and I9, in anysuitab-le manner. The inkV rolls-4I are drivinglyy mounted on a shaft- 43, on which they are mounted `forsliding'movement in anY axial direction to permit alignmentthereof with their respective pattern rolls Ill and Illa.

Y"'l'lie shaft 43 is preferably removable from the` frame members II and IB to facilitate the rey axial adjustment, to permitY them to be aligned with their respective pattern rolls. As shown of a roll therefrom.'

Thus,Y

. spiral paths.

in Fig. 4, each doctorv blade comprises a, thin, metallic plate 55 somewhat longer than the Width` of its respective pattern. roll.v If desired,A the shaft 5I. may be mounted for reciprocationA in Ythe bearings v52 in the usual manner. and constantly. reciprocated in amanner well known in machines of this general type. As heretofore mentioned, theparticular mechanism with which this invention is concerned, is especially adaptable for luse with a graining across the work. f Hence, the mechanism is arranged to have an.:.offsetV roll deposited thereon,

by the operator, and consequent upon theide.-

, posit ,of the roll'automatically transfer the de- A sign from the pattern rolls IE and lila thereto, x

and Vto beautomatically conditioned to receive another offset roll consequentupon the removal As shown in Figs. l and 2, l indicate an offset roll 60 which ismanu'ally positioned in a carriage v6I.` `Thecarriageis reciprocably mountedin.VV e

an' elongated guideway 52, which is carried byV aturntable ISB.V As` shown in Fig. 1, the turntable Y63 isprovided'with recesses t4, arrangedto'be engaged by annular ribs 65, formed on turntable lsupports 66, which l are secured to the `frame members I'I and I9. Suitable boltsili'l'areprovided totclamp the turntable to secure the guideway'I in any desired angular position relativei to the axis of the patternV rolls Ill and lila, and

hence determine-the angular position of the pat- Y ,ternk rolls relative tolthe offset roll Eil.V This angularpositon of the turntable controls` the degree Vof pitchof the spiral affected by thev design on theV offset roll during the transfer thereof from the pattern roll. Likewise, the angular position of the turntable andthe axial position of the pattern rolls Il! and Illa relative to Veach other determines Vwhether the designs taken from pattern rolls Iii and Ia will be superimposed,

one on the other, in the same spiral path on the offset roll or whether Vsuch designs will be transferred to the offset roll B in'two independent The carriage 6I comprises a rectangular frame,

having at its opposite ends pockets lll, arranged Y to receive the ends-of lthe roffset roll shaft 56a.

Pivoted pawls 86 and 85, carried by the carriage Y 6I, are urged into contact'with the offset roll f shaft by respective spring-'pressed plungers 83 and :3,5 to resiliently support the offset roll and it Vand. 'both pattern rolls.

In Fig. 1, the offset roll 6i) Vis illustrated at anv intermediate stagerof thetransfer of the grain v Vinsure proper frictional driving contact betweenl designfrom the pattern rolls Il) and Iila thereto.

However, when the roll is placed in the machine thecarriage is at its extreme rightfhand position, in which position a latch portion 'SI of the paw'l 8l) is engaged by a coacting catch 82, Ysecured to the right-hand end of the guideway 62. However, consequent upon the depositing on the car'- riage, by the operator, of an offset roll, the shaftif Gila of such roll engages the pawl 83, as indicated in Fig. l, rocking the latch in a counter-clockwise direction, thereby freeing it from the catch, whereupon a suitable spring-pressed plunger' 93,

mounted in the end of the` guideway and which engages the end of the carriage 5I, acts toevercome Vthe inertia of the carriage and permit the pattern roll to rotate the oset roll and propel it, together with its carriage (il, along the guide'- way 62; Due to the resilient supporting pawls and' 85, the offset roll rests entirely by gravityi vlo process, wherein an offset roll is manually rolled Y on the pattern rolls, and hence small variations in the diameters thereof are readily compensated for, and a driving frictional contact between the two pattern rolls and the offset roll is insured.

The pattern rolls i0 and lila progress the transfer roll 6|! along its guideway |52 until the entire roll has been covered with a pattern, at which time the right-hand end of the offset roll has progressed a slight distance beyond the end of' the pattern roll 0 and the driving connection therebetween is thus broken. The carriage remains in this position unaffected by the mechanism until the offset roll is removed therefrom by the operator.A

Consequent upon the removal of the offset roll 6) from the carriage by the operator, the lefthand end of the offset roll shaft 60a. is removed from contact with the pawl 85. Thereupon, the spring-pressed plunger 36 rocks the pawl B5 in a counter-clockwise direction, causing a lip B1 thereof to swing into a position to be engaged by lugs 88 of a continuous chain 89, which is driven in the direction of the arrow shown in Fig. 1. This provides a positive drive to return the carriage 6| to its extreme right-hand position and to cause the latch 8| to re-engage the catch 82. The spring-pressed plungers 9B carried at the end of the guideway 62 are compressed under the influence of this drive and act to absorb any shocks and to thereafter maintain the latch 8| in engagement with the catch 82, until another offset roll is placed in the carriage.

The carriage drive chain 89 is carried by a pair of sprocket members and 96, journalled in the frame of the guidevvay 62. This chain is constantly driven from the shaft l5, heretofore described. As shown in Figs. l, 2, and 3, a sprocket S1 is secured to the shaft l5, and is connected by a driving chain 98 with a sprocket 99 carried by a stub-shaft |00 suitably journalled in the frame member I'I.

The stub-shaft |08 has secured to its outer end, a universal joint mechanism lill, which is provided with a shaft |92, having a splined connection IGS, with a sleeve |04. This sleeve is rigidly secured to a shaft H95, which, in turn, through a universal joint Miti, is drivingly connected to a shaft it?, journalled in the guideway 62. Spiral gears |98 drvingly connect the shaft |97 to the sprocket 95, thereby driving the chain 89 to return the carriage as heretofore explained.

From the foregoing description it will be seen that I have provided a method of decorating articles having long surfaces, such as elongated strips or the interior surfaces of frames or the like, and may be readily grained, either in two colors or by two patterns, superimpo-sed one upon another, by one passage of an offset roll thereacross. Likewise, I have provided an apparatus for simultaneously transferring designs from two independent pattern rolls to one offset roll, either in a single or a double spiral path,'-that is, either one design being superimposed on the other in one spiral path on the offset roll or both designs being transferred to the offset roll in independent spiral paths.

While I have described the mechanism as utilizing two pattern rolls of the same diameter, the use of the resilient offset roll and the resilient support therefor permits the diameters of the pattern roll to vary slightly Without any disadvantageous effects on the patterns transferred I also contemplate using pattern rolls having entirely different diameters. In such instances the pattern rolls are mounted so that the periphery of both will coact with the same offset roll, by providing an independent supporting shaft for each pattern roll and suitable gearing to drive such offset rolls, one independent of the other so that their peripheral speeds at the point of contact with the offset roll will be substantially identical. Such arrangement permits one pattern roll to be of such diameter relative to the diameter of the other pattern roll that the patterns, When applied to an offset roll, one above the other, will, for practical purposes, never register in the same mannen-that is, the periphery of one pattern roll would be of such length relative to the periphery of the other pattern roll that for practical purposes the summation of the periphery of one roll would never be a multiple of the summation of the length of the periphery of the other roll.

It will be seen that I am able to produce patterns, the designs or tones of which, for all practical purposes, would never repeat. It is likewise to be noted that the mechanism functions automatically to transfer such patterns to the offset roll and also to reset itself so as to receive another offset roll without further attention by the operator. A

From the foregoing description it will be seen that I have provided a simple, eflicient and economical method and apparatus for the simultaneous application to a surface to be decorated, of two transfers, each having its own independent tonal variation and thereby I obtain by a Y single transferring operation, from the transfer medium to the work, a design having a double tonal variation and including two single tonev-arying patterns, each of which may be apparent independent of the other in certain areas of the work surface, and both of which may combine to produce a double `tonal variation design on other areas of the work surface.

I claim:

l. The method of effecting the decoration of an elongated surface, comprising applying a design to a plurality of members to form patterns thereon, obtaining a transfer therefrom on an offset roll by rolling such roll along both patterns simultaneously, at the same time moving the roll relative to the patterns in the direction of its axis, so that both patterns will be transferred to the offset roll in spiral paths, and subsequently transferring both designs from the offset roll to the article to be decorated.

2. The method of effecting the decoration of an elongated surface, comprising applying designs to a plurality of members to Yform patterns, obtaining a transfer therefrom on an offset roll by rolling such roll along both patterns, at the same time moving the roll relative to the patterns in the direction of its axis, so that both patterns will be transferred to the offset roll in spiral paths thereon and subsequently transferring both designs simultaneously from the oifset roll to the article to be decorated.

3. The method of effecting the decoration of an elongated surface, comprising applying designs to a plurality of members to form patterns, obtaining a transfer therefrom on anoifset roll by rolling such roll along both patterns, at the same time moving the roll relative to the patterns in the direction of its axis, so that both patterns will be transferred to the offset roll in a spiral path with one pattern superimposed over the other, and subsequently transferring the composite design from the offset roll to the article to be decorated.

prising spacing such pattern rolls from each other on, a common 'aXis'b'ringing an offset roll -into simultaneous rolling contact with both of 4. The method of decorating an elongated surface, comprising applying aV designsto each' of two' 4 members to form patterns thereon; applying difi ferent colors to respectivepatterns, obtaining a transfer therefrom toan offset -roll by effecting a simultaneous rolling cont-act between Yboth patternsand the rolls, VWhile moving the vrollin a direction at an angle to'both patterns, subsequent# work.Y A

' ly transferring the design fromjthej offset, rollV to the surface 'to be d'e'c'zd'rated by effecting a vrollV ing contactjbettveen'the' rolll'and the work whilev moving the rollin a directionA at an angle to the 5. The method of decorating anelongated surface, comprising applying a` design: to each of two rolls, obtaining a transfer 'therefromto an., .offset roll by effecting'the simultaneous rolling contact between bothpatternroll's and the offset Y roll, and simultaneously causing a relative movement between the offset `roll' and both pattern rolls in a direction parallel to the axis ofthe offset roll, and subsequentlyV transferring the designs from the offset roll to the surface to be vroll at an angle to the axes of the pattern rolls and subsequently transferring the composite de-y Y v Sign 'fromthe offset roll to the workA to be decorated.

'7.- The method of effecting the decoration o Y s elongated surfaces, bythe use 'of a pair of pattern rolls, comprising transferring a pattern from each pattern'roll to the same surface area of an offset roll vby simultaneously rolling the offset roll along such pattern roll while retaining such pattern rolls spaced a predetermined distance .one from the'other,V and while maintaining the axis Vof the transfer roll at such an angle to the axes of the pattern rolls to cause the pattern from one pattern roll to be transferred to Vthe offset roll in a spiral path and to cause the pattern from the other pattern roll'to be transferred to. the offset Y roll on the same spiral path, whereby one pattern is superimposed on the other pattern in a spiral path on the surface of the offset roll, and subsequently transferring such compositeVY pattern Y' from the offset roll to the surface to be decorated. Y

8. The method of effecting the decoration of elongated surfaces, by the use of a pair of pattern rolls, comprising transferring a pattern from each pattern roll to a different surface area of an offset roll by simultaneously rolling the offset roll along such pattern roll while'retaining such pattern rolls Vspaced'one from the other, and vwhile maintaining the axis of the transfer roll at such an angle to the axes ofthe Vpattern rolls asto cause the pattern from each patternV roll to be transferred to the oset roll in' a different spiral path thereon, vsubsequently transferringosneV de- .sign from the offset roll. to the article to be decorated, and thereafter transferring the second designV from such offset roll' to thev article linV a superimposed relationship tothe rst design transferred thereto. Y

9. The method of effecting the decoration of L surfaces bythe use of a pair of pattern rolls having substantially the same diameter, comsaid pattern rolls andwithits axis at an angle to the axis of thepattern rolls,.whicl 1 angle com# `bined with the spacing ofthe pattern rolls will cause the design of both of said pattern rolls to be transferred to the oset roll in the same spiral path, one design being superimposed on the other, and subsequently transferring the design kvto the surface to be decorated.

Y 10; The method of effecting the decoration ofa surfaceby the 'use of a pair of pattern rolls of diiferent'diameters, comprising spacingsuch pat-L Y 15.

tern rolls from each other on differentbutY parailel axes, bringing an offset roll intosimultane-` Y ous. rolling contact with the periphery both vrof said pattern rolls and with its axis atan angle to the commonplane of the pattern rolls, wlfiileY maintaining the pattern rolls spaced apart a predetermined distance whichj combined with the angle of deflection between the plane of the axes of the pattern rolls and the offset roll causes the design of both of said pattern rolls to be transferredv to the same spiral path on the offset roll,V and subsequently transferring such composite design to the surface to be decorated by rolling Vthe transfer roll across such surface.

11. The method of effecting the decoration of v an elongated surface by the use of a pair of pattern rolls, comprising providing each pattern roll with a different pattern, spacing such pat-V tern rolls from each other axia1ly,rapplying a different color to each pattern,.bringing'an oset roll into simultaneous contact with both of said pattern rolls and'with its-axisat an angleto the y axesrof the pattern rolls, and while maintaining the 'patternrolls spaced aparta predetermined distance which,.combined with theangle of de- -iiection between the pattern roll and the offset vroll causes the design of both of said pattern rollsV tobe transferred to the same spiral path on the offset roll, one color being superimposed on the other, and subsequently transferring both colors to the surface to be decorated by bringing the, offset roll into rolling contact with such work.

12.A In an apparatus of the class described, the combination with a pair of patterns, means to apply color to ,said patterns, of an offset printing roll, means to support saidroll in peripheral contact with both ofsaid patterns simultaneously.'

means to rotate said roll while maintaining contact with both of said patternsand means to cause Vthe offset roll to move along its axis sieY multaneously with its rotary movement.

13. In an apparatus of the class described, the combination with a pair of pattern rolls, independent means toy supply color to Veach of said pattern rolls, a carriage arranged to receive and holdsan offset printing roller in peripheral eontact with both of said pattern rolls, a guideway for said carriage whereby said carriage mayV move in a direction at an acute angle to the axis of the pattern rolls While maintaining peripheral vcontact between both of said rolls and the roller, and means to rotate both of said rolls whereby the patterns will be applied to the roller in a spiral path thereon. 'i

14. In Van apparatus of the class described, the Y combination of -a pairrof pattern rolls having substantially the same diameter, means to apply color to each roll, independent of the other, supporting means for said rolls, means to maintain said rolls spaced a predetermined distance apart, a carriage arranged and adapted to Vsupport an o`set printing roller with its axis at an angle to the axes of the patternrolls while maintaining the roller in peripheral contact with both of said rolls, a guideway to support the carriage for movement in the direction of the axis of said roller, and means to drive said rolls whereby said roller will simultaneously rotate and progress in the direction of its axis.

' 15. In an apparatus ofthe class described, the combination with a pair of pattern rolls, of means to rotatably support an oiTset printing roller, a carriage to support said pattern rolls with their peripheries in rictional contact with said roller, a guideway to support said carriage for movement in the direction of the axis of said roller, angularly adjustable means to sup-port said guidewayV While maintaining peripheral ContactI between the rolls and said roller, and means whereby the rolls may be adjustably spaced apart from each other and means to simultaneously drive said rolls at the same peripheral speed.

16. In an apparatus of the class described, a frameQa pair of pattern rolls of substantially the same diameter, means to rotatably mount said pattern rolls sidebyr side in said frame on a common axis,adjustable means to control thespacing of said rolls one from another,means to applycolor to said rolls independent of each other, means to support an offset printing roller in peripheral contact with both of said rolls simultaneously, adjustable means to control the angle between the axis of the offset roller and theaxis of said rolls while maintaining said rolls Ain peripheral contact with said roller,l and means to drive said rolls, and means whereby said roller may move in the direction of its axis consequent upon its rotation due to frictional contact with said printing rolls, whereby the patterns from saidpattern rolls are transferred to said roller in a spiral path thereon.

ORVILLE DOERING KING.

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