US2005839A - Cylinder machine - Google Patents

Description

June 25,1935. EDGE 005,839

v CYLINDER MACHINE Filed Jan. 26, 1933 4 Sheets-Sheet l.

June 25,1935. I J. EDGE w V 9 I CYLINDER MACHINE Fild Jan. 26; 1933 4 s e ts-sheet :5

Jun 25, 1935. ED E 2,005,839

CYLINDER MACHINE Filed Jan. 26, 1953 4 Sheets-Sheet 4 Patented June 25, 1935 I l i CYLINDER MACHINE t Jacob Edge, Downingtown, 1a., assignor ,toe,

Downingtown ManufacturingCompany,Down-, ingtown, Pa}, a corporation of Pennsylvania I V Application January- 26, 1933,,'Seri al No. 653,726

I 8 Claims. (01. 92-43) This invention relates tea-method of producing matic in nature, showing paper by cylinder paper machines-andtoappainaccordance with my invention; v I ratus for use therein, and more. speciflcally'to a Fig. 2-is a vertical sectional view through the method ofproducing paper-at high speeds by use vat; 1 LV 1 5 of a cylinder paper machine-havingan especially Fig. 3-is a fragmentary section on line H of constructed'vat. I I 2; g. and I In order th'at'cylinder paper. machines may be Figs.-4 5 and 6 are detail'sectional views illu seconomically operated in competition with those trating different methods of pontmnmg the-overof the Fourdrinier type, it is essential that the flow of excess stock, l ,1 t t I v 10 operation be speeded up to the highest possible Referring now more particularly to thedraw- 10 extent. 'With the present typeor cylinder mold in s, the-numeral I 0 generally designates a'vat';

and vat, any high speed is impossible, due to vthe II, a cylinder mold operating therein; and I2, a i'actthat the methodof introducing stocktothe couch roll co-acting wvith-"the cylinder mold vat and the method of taking care of the outflowe through the, D D t StOck issllp a 15 ing white water will notpermitoperationaat any p d-1 the val; hrougha head-bo H i g a 15 very great speed. y relatively high head -t'o the stock, so' that the a This invention contemplates the'provision' of a st ck y have ve 'equal m t". f h cylinder vat, whereinthe-mold operatesat annexe desired peripheral speedoi-rotation of mold 'I l.f tremely high speed, a'ndgin which the incoming White waterawill be returnedfr'om the fstock'to S o i delivered undersuch head, andinsuch head box 14 throughia suitableconduit us; while manner, that the stock travels about thel periphoverflow stock will be returned to'the head box I i cry of ,the mold in the forming section at subf-- by c ndu 16,1th88 conduitsleach men p mp stantially the same speed as the-peripheryptof ll arrangedhthereinand a'whit'e water return" the mold; Itfwill beobviouswitha construction having the usual'wasteoutlet indicated at 18;

of this charactenin order that the, similarity in The mold ll m y b Y ua ordinary 25 speeds may be maintainedzthroughout the form construction, and is arrangedwithin the vatjbeing section, that-there must be suflicient stock tweena stock inlet l9,- whichhas'its'outlet or de delivered to provide an overflow-of stock at, the 11verynozz1e 20 substantially tangential to, but end of the forming section. v t; spaced' from the peripheryof mold mend-a 1 I A secondary object of thisin vention is the pro-,- stock outlet-2t having'its mouth n'disposed ad- 1 b vision of a novel means for taking care of such jacentthe upper. end of the vat. -Stock inlet I! overflow in a manner preventing its interference is preferably constructed -tdprovidean elevated with, or modification of vthe formed sheet. l. elbow 23 betweenthe point of itscommunication v A further object of theinvention is the proviwith stocksupply conduit 24 and outlet nozzle t sionina cylinder mold, having a defined stock 20, this elbow beingin-communication with a vat 3 passage; throughout the formingtarea,;of; means conduit 25, the upper end of which is disposed whereby thecont'our of the stock passage maybe above the level of fluid inshead box I! iii-order varied at the will of the operator during operathat any entrainedair in the stock may escape tion or the machine. In this connection, it may before the. stock reaches nozzle 20.- Nozzle 20 has 40 be pointed out that while inthe crdinarytype an agitator A arranged therein-to insure against 0 of cylinder mold the stock passage is .usually reuni-directional fibre movement of the stock. The ferred; to as being adjustable;suchupassages are outerorlcwer walltof nozzle 320-is extended by; only adjustable through some means "necessitatmeans of a flexible plate 26 whichf approaches the{ ing checking "operation of themachine before A surface of the cylinder mold l lt s itrecedes from they can beoperatedQ With;adj ustmentof"the the nozzle. This plate has uponits outer face a stock passage during operation, the effect of such series of brackets. 21; each providing a meansior adjustment upon-the sheet-can beimmediately' conn ti t vth platefan' adjfisting membef-lfl marked, so that it is known whether the desired at present shown as comprising an eccentricallyresult has,been obtained or not: and it the'de operated connecting rod.--,* The eccentrics'ib op-f .vmw

apparatus constructed sired result hasllnotlbeen Changes crating these connecting ,rods'ar' rotatably shift-' 5 a can be made without necessitating checkingoperable from .the exterior of thevat through operatation of the machine. 1 w 5 ing levers 3|; each having a quadrant, asso- Other objects and advantages will become ap ciated therewith-and eachhaving means 'as at 3}". g parent from the following description. whereby it may be secured in adjusted positions" i v Fig. 1 isa side elevation, partially diagramupon thequadrant. Theupperwall'oi nozzle 20 '66 is continued by means of a plate 34,- the upper surface of which conforms to the shaping of and closely approximates the surface of the cylinder mold, and the lower wall of which is tangential to the cylinder wall; thus, a relatively elongated nozzle tangential to the cylinder wall is provided, with the resultthat the stock flrst coming into contact with, the wall of the cylinder mold has'tangential "movement without turbulence.

The flexible wall 26 is formed in two sections,

and, the section 36 or lowermost section of which is directly'attached to the nozzle mouth.

a and the section 36 of which is slidably-engaged at its lower end with the section 36', and is provided at its upper end with an'cverflow shelf 31, The,

' slidable connection between the sections I6 and 36 may be readily provided ,by slotting :the uppermost bracket 21a for the receptionof the lower end of section 36. 7 In theform shown'in Figs. ,2 andA, the shelf '31 is a portion'of a structure I}, which in addition to the shelf includes a knife-edged deflector 39 3 comprising an arcuately curved wall overlying By means of angularly related adjusting screws "and", the structure 36 may be ,la'djusted both vertically-.andi-towardaand away from the peripheryof the mold, and will'in practice be positioned with the knife-edged deflector 36 as close to the wireof the mold as is possible without, touching the newly :formedsheet on the same; 1'

In operation ofthe a paratussthe head of incoming stock is controlled through head box 14,

so'thatthe, speedof the stock is substantially the same as the peripheral speed. of the mold Ii. Stock entering thegpassage. from the nozzle and coming intocontact-with the periphery of the mold is, therefore, stationarily related to the periphery of the mold, and the fibres thereofcan I maintaintheir normal position when'corning into contact with the mold, that'is to say, there is no such difference in the'speed of movement of the stockand receiving surface as to cause any tendency toward; uni-directional laying of the stock fibres.

I BY adjustment of the flexible wall 26 the size of the passage can be kept at just such a, point thatthe-yamount of stock properly fllls; the same to maintain .the head pressure against the screen face of the mold Ha This will, of course,-result in the stock arriving at the" end of the forming channel I at a considerablespeedc which would tend to cause squirting of the stock from the mouth of; this channel. This sheet;

In the form shown in Figs 2 and the knifemethods, all ,of which, however, should be of such character that dischargev of. the stock is avoidedin whichthe spurt falls back upon the formed sheet, or thegamount of relatively dead stock is of such depth that there will beno tendencyto washthe sheet from themold'because of Y the relatively high speed of movement of the mold. 1 4

In Flg. 5,-the-.knife-edged deflector is substi tuted for by a dandyrollfl which must beof greater diameter the discharge mouth/of squirtingwould, obviously, seriously damage the 1 i channel 43. This dandy roll is slightly spaced from the channel mouth so that the force of the flow is broken. v The newly formed sheet is held against dislodgment by the screen surface of the dandy roll, and the overflow stock will return overshelf- 31 to the stock outlet channel.-

Inthe form shown in Fig. 6, the mouth of the channel. is flared; the upper .end of the movable this bracket may be equipped with the shelf 31.

The pocket formed by flaring the mouth of the channel I! should be of such depth that the collected water will kill the spurt'of stock passing from themouth. In all forms of the invention described, white water extracted from the pulp'a'nd passing to'the interior of the mold will drain either through the ends of the'mold, or is passed through the wall thereof into the space beneath the flexible wall 26 and so passed through thenwhitewaterfoutl etconduit l5.

Since the construction 'he'reinbefore referred to is, obviously, capable; of considerable modificationfwi-thout in any"mannerrdeparting from the spirit of my invention, I donot wish to be understood as limiting myself thereto except as hereinafter claimed. ,7 '11 claim: '1. In combination, a vat, a cylinder mold thereim-a wall confronting the surface of the cylinder mold and co-acting= therewith to define a forming sectionand means'ope'rable during the formation ofya sheeton the mold for moving the wall throughout its length toward'and away from the cylinder mold. a g 1 V 2. In combination, a'vat', a cylinder mold therein, a wall confronting the surface of the cylinder mold and co-act'ing therewith to deflne a-for'ming section and means'operable during 'wallr361beingsecuredto a bracket which inl,

theii'ormation of a sheet on the mold for-moving thewall throughoutitsflengthftoward and away fective length of-the forming "section. I V

3.'In combinations! Vat, a cylinder mold therein, a flexible wall confronting the surface of the cylinder moldan'cl co-acting therewithto define; a forming-section, and means engaged with the wall atspacedintervals throughout its from the cylinder mold,-and for varying the' et- 1 length for adjusting the wallltoward and'away from the cylinder mold;

4. In 7 combination, a a cylinder mold therein,-a flexible wall confronting the surface of thecylinder mold and co-acting therewith to define a formingbectibn, and means operable engaging the wall at spaced intervals. throlmhout its length for adjusting thewall toward and away from the cylinder-mold. I v

"5.Inj combination, aj v atyacylinder mold therein, inflexible wallconfronting'the surface at spaced intervals throughout itslength for adder mold. v

[6. In'combination, a vat,- .a cylirider mold therein, a wallQconfrontingthe:surface-of the cylindermold and formed in two overlapping sec- Jus'tin'g the walltoward andaway from thecylinduring formatiomof-a sheet on the mold tions, one ofsaid sections being circumferentially movable,,means for relatively adjusting said sec tions to thereby provide aformlng section of ad- -justable length, and means' for adjusting said section toward and away from the surface of the mold.

7. In combination, a vat, a cylinder mold therein, a wall confronting the surface of the cylinder mold and formed in two overlapping sectlons, means for relatively adjusting said sections to thereby provide a forming section of adjust- '8. In combination, a vat, a cylinder mold, therein, a wall confronting thesurface oi the cylinder mold and formed in two overlapping sections, means for relatively adjusting said sections to thereby provide a forming section o1 adjustable length, and means for adjusting said well throughout its length toward and away iromthe surface of the mold, both of said means being operable during formationot a sheet on the mold.

JACOB man.

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