US1787218A

US1787218A - Method of and means for making decorated paper

Info

Publication number: US1787218A
Application number: US314038A
Authority: US
Inventors: Jesse H Trask
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-10-22
Filing date: 1928-10-22
Publication date: 1930-12-30
Anticipated expiration: 1947-12-30

Description

Dec. so, 1930. J. H. TRASK 1,787,218

METHOD OF AND MEANS FOR MAKING DECORATED PAPER Filed oct. '22, 192s 4 sheets-sheet 1 Dec. 30, 1930.' J. H. TRASK 1,787,218

METHOD OF' AND MEANS FOR MAKING DECORATED PAPER Filed Oct. 22, 1928 4 4 Sheets-Sheet 2 @06725075 /g fmf Dec. 30, 1930. J. H. TRAsK 1,787,218

I METHOD OF AND MEANS FOR MAKING DECORATED PAPER Filed Oct. 22, 1928 4 Sheets-Sheet 5 Dec. 30, 193i). J. H. TRAsK l 1,787,218

METHOD OF AND MEANS FOR MAKING DECORATED PAPER Filed OCC. 22, 1928 4 Sheets-Sheet 4 .i 'faietedDw-sa'ieo l i '197372218 v' I A 'man 1i.v raasx, or wausam'msconsm i minion or man mms non MAKING nncom'rnn rum appuaaoa mea october 22,1928. serial no. 314.038.

niayl be made. in different portions of the width of the paper simultaneously.

`Referring first to Figures 1 to 4, at 1-,is indicated a Fourdrinier wire of a paper machine preferabl moving .when the machine is oper'- :itsv -ating'in t e'directiono'f the arrow a (Figure 1) l. Mounted above this wire is a frame member 2 which carries the marking mechanism.

This gframe member is provided at one end with a .relatively large roll 3 and latkthe opo0' This invention has forl its object to produce decorated paper, 'more` especially by forming thereon designs or figures in color and during the process of manufacture of the paper, al- 5 -though the same general metho may be employed for Iforming figures or esigns simulating watermarks or which areinotin color different from the remainder of the paper. This purpose is accomplishedi by` leading lo in superposed rela-qtion to the partially dried lweb of pulp formed on the paper machine, an endless marking member, which if the mark'- ing is to be in color, is provided with means for depositing colored paper stock onto the `posite endwith a head roll 4. Intermediate .between these rolls and adjacent to the upper prtionof the frame 2 isa roll 5. AThe roll 4 isfshown asjournaled in bearings 6 at opi .15 web'in' the desired designsl or conliguration,

' a5 invention;referencejmayh'e had to the acposite ends, these bearings -being adjustable 65 orizentally by means of the adjusting bolts The rol1'5 is shown as j urnaled in bearings 10 at opposite ends which are adjustable vertically, the bearings 10 bein shown as slidable in slots 11 extending ownwardly 70 from the upper edge of the frame 2. The' "upper ends o f theseslots may be closed by means of the plates 12.* Passing about the

rolls

3, 4 and v5 isa flexible endless marking -member or stencil belt 15 having openings 7i therethrough in the desired design or pattern formation. v

The roll 3 may be, raised or lowered at and for "this purposeit is shown' as journaled in bearings 'at opposite ends, each of which is carriedat the end of 4van arm 21 fixed to a rockshaft 22 which extends across v thewidth ofthe frame. On one side of the frame this'rock shaft has 'x'ed theretoa handle 23 which maybe rocked to any desired A8H position through a. desired angular range and vthere held by suitable means such as a releasable dog 24, which may vbe e aged f .with 'any selected portion of a'curvddg rack e i bar. 25 carried von one face of the framemem-l 90 ber 2. [The frame 'member itself is'supported on `the frame ofthe pa r machineand may i be adjustedtow'a'rd or om the up r face ,O f

the Fourdrinier wire by any suita le means, e

the adjusting screws shown at adjacent 95 tothe-corners ofthe frame.v B vfsuitablead'- jnstment of these screws thev me may be so positioned as to bring the belt 15 into the desired relation with the 1 1`ourdrinier wire.

When in operative position on the paper mag 101- and then withdrawing the? markingl member while 4preventing the pulp from, adhering thereto and separating out-from the body of the web; Whereimpressions only are desired n no stck. need bedepo'si'tedby the marking member which may be provided with impression elements by which the marking is leiected."

'- or a more completeunderstanding of this companying drawingsin which i Figurel is a side elevation of one form of the mechanism shown as applied to a Fourdrinier machine.l Figure2 isa top'plan of the same.

Figures 3 and 4-aredetail sections on lines .3.-3 and4-4of Figui-e1. 'e l Figure 5 is a diagrammatic side elevation illustrating amodiicati'on; Figures 6 and 7 are sections 'on lines 6-.6 and 7-7, respectively, of Figure 1.

Figure 8- 's a view similar to Figure 1, but showing an impression marker.

Figure 9 is afragmentary section at the head rollend' of the mechanism illustrating a modified construction in which a surface coating maybe applied to -on'e'- faceof the paper. Figure 1 0 is a fragmentary sideelevation showing aD device for cleaning. thefbelt` or -markingmemben j 1 Figure 11 is a ,section somewhat similar to Figure 4,but showing a flow chest'divided transversely of the paper'so that marking 'dif- `ferent in color or other desired characteristic tion, as shown in Figure 1, the belt 15 where'. it passes about the roller 3, rides on the web chine, this frame is'so ypositioned that when the handle 23 is swung to the left hand posiof pulp lying on the Fourdrinier wire so that vas this Fourdrinier wire is moved in normal operationjof thepaper machine, the belt 15' is caused'to move therewith, the

rollers

3, 4 and 5 being rotated by frictional engagement therewith. The shaft of the roll 3 may be provided with a hand wheel 26 by which its rotation may be started before it is brought may remain in proper position vontherolls during its travel. 1 Vertical adjustment of the bearings 10 insures the proper tension being applied to the belt. A's shown the blocks 10 are connected for simultaneous adjustment.

v F or this purpose each of the blocks 10 has4 threaded therethrough a screw shaft 3 5 having a beveled gear 36 at-its lower end.l Each bevelgear engages a similar gear as 37 von va horizontal shaft 38, which extends b eyond one side `of the frame member 2 and carries any suitable device by which this shaft 38 may be'rotated, as,4 for example, a hand wheel 39.v

After. passing around 'the roller 3 thebelt 1 5 passes beneath a fiow chest' or box 40, which extends across the frame-2 and basan open lower f' edge' across which the belt 15 passes. AAs shown best in Figure 4, this stock' ychest or'box"40 extends for substantially the entir'e'width of the stencil belt and is prot vided withv a supplyv pipe l41 through which paper stock of the desired color may be fed, and if desired u'nder pressure, into the 1nterior of the box where it may escape through lthe openings of the stencilbelt on'to the upper face of the web of pulp. This mechanism 5.0

should-be placed on a paper machine atsuch a point that thellow box 40 deposits on the' web after it has been fully formed, but before itis completely dry. The particular placev where this should be done depends on variousfactors,- such as lthe character of the stock,

thev speed 'of travel ofthe Fourdrinier wire, 'the sharpness with which it is deslred to have- I' the designs or figures marked-on the paper,

l andv whether or not it is desired to produce the designs on one' 'side only, orha've them`v shown on both sides-*in the finished paper, The sharpness ofthe outline of the deslgnsis greater where the (web of pulp-is more nearly dry at the time the coloring material is applied thereto. l Likewise when Athe pulp v 1,787,'a 1s is` quite dry the marking furnish applied,'the-designis marked on one side l only of the Hni'shed paper. A shortflbered pulp isusually preferable as a furnish'for vthe box 40 as it fills in-well,r though water colors, white wash, clay, starch, or other suitable materials may be vused with or without' fiber. f j

The stencil belt should be of' very flexible material, such as rubber or rubber cloth, preferably somewhat rou h on its lower face to make frictional driving contact with the paper web when vengaged therewith, and it should approach the web 4quite gradually in order vthat it may not act to displace the therewith. Itis also desirable that its contact bemade where it is'not-flexed to any subfstantial angle'as the edges of the stencil openings should be as flat-as possible inforder' to avoid the presentationof projecting'edges or points to the formed web which might punc ture' or otherwiseI injure it. Likewise the withdrawal of` they marking stencil should also be effected gradually and without abrupt .formed fibers of t -.e web on initial 'contact A change of angular relation to minimize any .tendency to pick the fiber or dislodge it from the web.

where the Stencil beu-"is lifted from the wire there is a strong tendency for the web to adhere thereto, it being well known to those skilled in the paper. industry that any mem# ber contacting with the wet web and "having anysubstantial solid sur-face presented there to, `tends to retain the web thereon.- As the' stencil belt has considerable areas presenting solid surfaces, therefore, special means lmust,v I

be'provided for preventing the web rfrom b eing raised from the'Fourdrinierwire, adher.

' ing to the stencil belt when the stencil belt is withdrawn from the wire. A very effective means of preventing such-adherence, which of 'course would act to greatly damage if it did not indeed destroy the' web, comprises a suction box of any suitable o r usual type, 'such tioned beneath the Fourdrinier wire'at 'the How box and where the stencil, after passing l beneath the flow box, is gradually lifted from the upper face of the Fourdrin'ier wire'. This suction box acts to hold 4the weben the'Four.- 1 drinier wire, freeing it from the 'stencilbelal l is'shown as adjustable verticallyindependentf `which passes awayfromthe Fou'rd'rinier'wire and around the head'roll- 4. i The stock box4l) ly of the frame 2., Forthispurpose,asslow1i 7 in- Figure v4, it may have end *portions'lf42',

which extend through openings 43 inthe frame member 2 andfthroughgwhich are "1.2.5 late portions 45 and'fprovided with ywinged 1 threaded adjusting screws 44 journaledin heads 46 above the portions 45'by which they 'Y may be turned so' as to raiseor lowet the inemf ber40.`v j v In Some @sesitaeerbefoend desirable-ta no Y as is shown at 50. This suction box is posii cause. the stencil, as it passes about` the roll 3,

' to be presented more adually to the' eb than it is possible-were 1t ermitted to en age over a substantial arc of e roll 3, thus minimizing the chance of the edge portions of the v stencil at the' openings projecting'outwardly e.

and injuring the more or less wet web passing beneath the roll 3. Where this is found desir- '19 shown in Figure 5, over which the stencil 15 able the frame 2 maybe provided with extension arms 60 supporting an end roll 61, -as

: passes on its'wayto the roll`3. This roll 61 act's to hold a lower stretch 62 of the belt 15 away from contact with the roll 3 over a subj the web of pulp than'where-it is permitted to to deposit throlglh the openings'of the marking belt over verse partitions s -each compartment vhaving its own stock sup-- ply-pipe 81, so that s tockhavingdifferent colors or having other characteristics may be stantial arc so that it is presented flatter to contact over a more substantial arc of the cumference of the roll 3.v v

If'desired the iow box maybe divided into' a plurality of compartments as by the transown at 80 in Figure 11,

cir-

supplied to the diiferentcompartments thus '-ferent' widthwise portions thereof, thus tol lobtain corresponding Adiversity of markingewidthwise of the paper.

It'ma also found desirable to employ means orfcleaning the marking belt. In

Figure 10a stili water spray 85 is shown for i this purp'ose,.pa ns 86 and 8'( with

drain pipes

88 and 89, respectively, being shown beneath the upgoingv stretch ofv the belt. an'd beneath the head roll to protect the paper being m'arked from thefwaterof the spray.

' When it is desired to form a mark simuflatin a' watermark, where no'marking stock is to applied to thepaper, 'the construction shownin :Figure 8 may be employed.- In this construction-,it will be note d,.that the Amarkingmember comprises an endiesslbelt $70, which passes about the

rolls

3, 4 and`5 which may be mounted, as previously described, in the frame memberv 2. This` marking'member 70, instead of being a stencil belt, is provided with elements 71 on the outer face thereof of the shape-'of the guresor "I 501 Y y ishe' paper.' This belt may,lif desired, be lmade of wire screen such as the Fourdrinie'r desi s which vitis desired to show onthe lin- .i wire. When this belt is brought 'dow'n into Loperativevrelation to the web yof paper,`these velements 71 press thereon and impart the dejsired marksthereto. Preferably lthe vlroll 3 ispositioned.- toward the dry endof the machine,ffthe direction of rotation of the Four- -I drinierwire being shown by the arrow b.

The suction box" isem loyed as previously described where the belt 0 is lifted from the Fourdrinier wire; so as to hold the., web of 'f paper to the Fourdrinier wire and prevent its adhesion'to the marking belt. i

In Figure 9 is shown a modiiedvconstruction particularly intended to coat the surface of the paper uniformly, for example with china clay, pulp different from that of the paper,'as, for instance, a bleached pulp on a cheaper paperl web of brokeor thelike, coloring material, surface sizing, or other desired materials. To this end the belt as it passes about' the headroll 4 Contacts with a pick-up cylinder 90 ofk wire-gauze or other suitable material which is rotatable partly submerged in 'a' vat 91 containingv the desired coating material. This cylinder 90 is rotated by frictional contact with the marking belt and as it rotates it picks up coatin material from the vat 91 and deposits it on t e outside face of the belt,the belt in turnndepositing this material on the surface of the paper above the suction box. If .desired the cylinder 90 lmay be drained internally so as to fuiiction as a cylinder mold ofa cylinder' or wet paper machine and from which a .web of pulp is removed by the marking belt which acts with relation to this cylinder as a blanket.

Having thus described certain embodiments of this invention, it should be evident to those skilled in the art that various changes and modifications might be made therein without departing from the spirit or scope of this invention, as 'definedby the appended 1. The method of making a marked paper,

which comprises bringing :a 'stencil against',

one face of a formed and partially dried web, passing marking material through said stencil against said web, and then withdrawing said stencil while preventing adhesion of the vweb thereto.

face of said screen where said marking member'is being moved out of contact with the web to prevent adhesion of the web to said member.

' 4. The combination with a Fourdrinier wire of a paper machine, of a frame positioned adjacent to'said wire after the formation and before the web thereon is completely dried, an endless member carried by said -frame and havinga portion thereof arranged to engage the'iveb and ltravel theremoves away fromsaid web at the end of said y with, and 'means acting'where said member contacting portion prevent adhesion of the web thereto.

L A 5.. The vcombina-tion. with a Fourdrinier .Wire ofa paper machine, of a frame posi;

" ranged to engage the web and travel thereat' said portion.- k e 7. The combination with the Eourdrinier f wire of a paper'machine, of ay marking mechtioned adjacentto'said wire after .the formation and 'before'theweb thereon is completely dried, an endless markingmembercarried by said frame and 'having la portion thereof ar with, and a -suction box on the opposite side of said wire vWhere said memberv moves away from said wirevat the end of said contacting portion.v

6, The combination With a vFourdrinier wire of a` paper. machine, of a frame positioned adjacent thereto, an endles'sjstencilbelt carried by said frame, means on said -frame for pressing a' portion of said belt against ay formedl web. on said wire, means for applying marking stock to the upper face Xof said belt at said portion to pass through t e openings thereof and mark the web, andx'mealns for applying suction to the lower facds of the web anism comprising a frame lpositioned adj acent to said wire, an endless marking member carried byfsai'd frame, rollsjournaled in said frame. and about which said member passes, said mechanism including nieans for presenting a portion of said member closerto a web on said wirethan the .remainder thereof,

means 'for adjusting said presenting means toward and froin said wire to bring said .member into contact with a pulpweb thereon to be driven by the motion of said wire, or

to beslited out of vcontact therewith, and a suction box` beneathsaid wire oppositeltosaid portion where it leaves said `web when j l driven thereby.

8. The combination with the JB "cmrdrinier j -wire of a paper machine, of a marking meclla-` nism comprising a frame positioned adjacent to said wire, an endless exible stencil mem- L ber `carried by saidframe, rolls journaled in said frame and about which, said member passes, said mechanism including means for presenting a portion of said member closer .to a web on said Wire than theremainder thereof, means for adjusting said presenting means toward and from said wire to brinsaid member into contact with a'- pulp we thereon to be driven by the motion of said mire, or to be lifted out of contact therewith, means for .conducting colored furnishvtol the said frame and having a portionethereofar- I i vranged to-engagethe web and travel thereof said member which engages the web while for applying suction to thelower face of siaid web where said material is being deposited.

'11'. The combination-With a Fourdrim'er wire 'of a paper.machine,vof a frame posi` tioned adjacent thereto,'an endless -/belt car? ried by said frame in position-to engage a face thereof with aformed vweb on said -4Wire,f" means for applying coating material te said face of. said beltto be deposited thereby onto i said web, and means for'applying su ion to j the lower face of said web wheresaid material is beingtdepositedi-y f 1 i 41 2. vThe combination with afFonrdrinier wire oa paper machine, of an lendless mark'- i'ng member positioned to have a portion wire lat the end of said contacting 'portion to prevent adhesion of thev4 web thereto-lv f' Intestimony vwhereof-I have ailixledmyl signature'. 'I y v f V, JESS'I'I. TLRASK..v f

upper` face of said stencil to" 'pass there-, through onto said web, vand a suction box" beneath said wirelopposite Ato saidfportion where it leaves said webwhen driven thereby. 9. .The combination. A(with .a Fourdri'nier wire of a paper machine, of a.V frame `positioned adjacent to said 'wire after the formatlon and before the web thereon. is completely dried, an endless marking member carried by rofl "#5 thereof engage a web f wetpulp `on said l wire and travel therewith, and means acting where said member movesv away from.