US2779254A - Paper forming machine - Google Patents

Description

Jan. 29, 1957 1.. HORNBOSTEL ET AL PAPER FORMING MACHINE Filed Nov. 16, 1955 m 3% k 5 L am E F m ww m w 5 JW m Q 1.] E H V. m n w Kw I z hm wm wow 3 m 31 DN\\ v m h m HN Ala/v20 .4. A/EEJE 1 United States Pa en a 2,779,254 PAPERFORMING MACHINE Lloyd Hombosteland Alonzo A. YNeese, :Beloih i-Wisl,

assignors to Beloit Iron Works, Beloit,.Wis .,;a-.corpration of-Wisconsin Application November 16, 1953,1Set'ial No. 392,376

Claims. (CI. 92-43) .This inventionrelates to a paper formingimachine,

to successively deposit fibrous webs upon a;pickup fe lt u in ov the a hf ia q o vsu h e li ahwald Un u t y t t .w ve y le llaaibi i yafi inthe cooperation between :each cylinder moldand the overrunning pickup felt, since the pickup felt must run ina line so as-to engage 'the top ;portion gofeaeh 'of such cylinder moldsfor thepurpose of removing ;the fibrous stockshaving different properties-as feed for certain of; the cylinder molds, substantially no variation could be permitted in the cooperation between the ;pickup;felt; nd the cylinder mold 'so as to effect a mote preferred m n ner of picking up the various different fibrous f0 med on ay nd r mol ;Moraa ar, tan-y tyn o breakdown in one of the cylinder molds, 'rDCQQ SSaI ilY, 1elt d in t shu t n w of t a enti e rma hina, a cause the; pickup felt operatedso asto engage gtop addition, acertain maximum operating speed, infectper minute of web formed, I was permitted using 1{the 1 prior; art

cylinder mold structure, and thisv maximum zspeedjwas based upon-the particular cooperation betweenzthegpicklup felt and cylinder mol-d, whereby the -pickupfelttrans- V ferred the web -from. thecylindermoldesurfaceh These and othertdifiiculties have bbQlliOYfillQQlIlG-jh? the .presentiinvention, which provides yfor-zatmuchjmore versatile pickup cooperation between 1.,the;scylinder smold unit and the pickupsfeltrand whichefurtherrprdvidesifor v peripheral portion of each-of suchcylindergmo s, ;I n I greater operating arspeedsiandt for-elonger. qontinugns ;op-

ttheause of V a .looped forming wire in .econjunction with .-the @511- incler. mold and aturning roll or-lower -couch:rollewithin the a loop of ,1 the :forming-gwirei:for eflectively :a'djusting' he position of thexformingawirerfor coopelation with he pickup felt-andifor movingrthe forming wire'zouti ofrzop erating position, @When the particularcylinder gn'oldaunit its :to be taken out .=of.j operation, =with01lt shutting E her-Q11- tire machine down, I 7 a it is, hereforc,-an.=i. PDIIa. ohiaat of tha instan chine, having Qgreater versa p b capable of longercontipuouspperation s achieved.

lt is avfurther object of the instant iv nYeut ion ito plro-' ,7. to s oped pickup feltltlaving a felt 'runpositioned' above the upper meat 2,779,254 ,Patented. Jan. 29,

v each pf saidwforrning wiresv to receive the fibrous. web h t -h m a da tam n l w n the l -o a h of said, forming? wires :for selectively directing, the upper ru n of ea ch wire .against and away from the felt run to respectively permit andprevent web transfer from the wire vto the felt V I Other and furtherobjects, features and advantages ;of ha a aht i vam aatwi l a pa t th aaki lad inthe art from the following detailed disclosure. thereof and th t hed d aw o i a par eo which show;a preferred embodiment of the instant invention.

-On the drawings; a a g Figured is an elevational view, with parts shown diaramma ha l and. :p rt a ana n: wi 'ha y -in;der-ty.pe paper machine embodying the instant invention;

)Eigure Z is ;a view in elevation showing themounting -arrangernent for-a-cylinder mold employed in the instant ,:invaati nr i h part n diagrammatically;

, Eigure 3i s a view inelevation of the turning roll struc- -ture employed in theinstantinvention, with partsshown dia rammati ally; nd

FigureAis ;a-;view;;inelevation of the structural mounting for the cylinjder moldrand theassociated turning roll :a ta,n a an -.amnlaye in the in a in en A'ssh wnon-t a ng In Figure 1, the reference numeral 10 indicates genera ythaform ng s ct n of a y h typ p p 'chine embodying the-instant invention which comprises a -plurality of gseparatelooped :forming wires 11a, 11b, 11c, 11d;=and,1 1 e,;a cylinder mold 12a,12b, -12c, 12d iandizejwithinthe-loopof each of said forming wires 1- 1a,-v 11 5211652 d and =1:1e':for eifectingfibrous web z-formation lonthe wire associatedwith the mold; a looped pickup felt 13 having, a felt;run:15 positioned above/the .upper run vaof each :of rthe {forming wires 111a, llbpllc, alld and :1;le cto JI'eQiVe thC ifibrous web therefrom; and :iazturning -roll 314a; 1 14b, 1140, 114d and-1142 within-the sloop, of-eachgof said forminglwireszfor selectively direct- ;ing the upperrrun of :each lwireagainst and awayifrom the rfelt 11111313; 210 l respectively :permit ,and prevent iweb itransfe'rrfromtthe wirevtoythe'felt.

' Referring now. to certain details of E the individual. cylainder imold nnits,; designated.tgenerallyannits a,;i'b, c -d and-.'1z,; -respectively itvwill zbernotedithat there areihere shown ea i total of zfivecylindermold units; and i the intstantrformingcsection 510 ::is: designed to operatetordinarily temployingaonly four-of suchun-its:(to prepare a-four 'ply sheet -'of paper), --with thefifth unit instandby. con- -"clition -or-uudcr repairs,-tas the :case ma-y be. With the fifth unit in standby:=condition'-(the standby unit here sl1own being-the unite), the instant forming section lo v.rnayl re operated continuously even though one of :tl'ie operating cylinder- -mold-units develops anoper-ational -.'de'fect. @Eor exa-mple,;if the unit d develops an operation'al defect, -the s tanldbyunit cis put intooperationand the unit-d'is taken out of-operation, in eahcase by'ap- 'prop'riate movement of the turning rolls -14c and 1 4d 1fe- 1 spectively (as-well -as the various other operations such as feeding -stock vvhic h are connected with the starting up or shutting down of an individual cylinder -mold -unit') "Referring now to thedetails or".-an individual cylinder rnold nnit-"such as the' first-unit in line, unit-a, it willb'e noted that this unit comprises a tankrlikecontainrfISa which enclosesthe-operatingelements such'as the cylinder rnoldilhz'fthe formingwire -'1-1a and the *turning roll 14a. The tank 15a inayl-"func'tion a-s hereshown primarilyasia guard for theot-her elements, or --it might functionas' 't-he case-of many cylinder mold uni-ts' as the tank which -.retains-the-stock at-a predetermined level andfin} which the eylinder mold*12niotates so as to pick-up; a-fibrousw eb on -thesurfa'ce thereof. "As -here shown, however, int-lie instant arrangement it is preferable to employ a stock inlet 16a which feeds stock upwardly from beneath the operating floor F and against the uprunning side of the cylinder mold 12a. The fibrous web is thus formed within the region of the cylinder mold periphery that is fed by the stock stream from the stock inlet 16a and the cylinder mold 12a rotating as indicated by the arrow and carrying the forming wire 11a in the direction indicated develops a fibrous web upon the forming wire at the approach of the upper run 11a of the forming wire 11a. The upper run 11a of the forming wire thus continues over to the turning roll 14a, at which point the fibrous web is transferred from the forming wire 11a to the lower run 13 of the pickup felt 13. The forming wire 11a then is turned downwardly and around a second roll 17a, which is preferably mounted as a tensioning as well as a turning roll (and then back around the second roll 17a to the cylinder mold 12a).

The turning roll 14a thus functions as a lower couch roll in effecting web transfer to the pickup felt 13. An upper couch roll 18a is positioned within the loop of the pickup felt 13 approximately above the turning roll 14a, and the upper couch roll 18a and the turning roll 14a cooperate to define a nip through which the web is passed between the felt 13 and the forming wire 11a, and at which the web is transferred from the forming wire 11a to the web 13. As will be shown hereinafter, both the upper couch roll 18a and the turning roll 14a are mounted so as to be adjusted in position and so as to correspondingly adjust the plane or angle of the nip formed therebetween in order to obtain a preferred 'nip arrangement for web transfer.

In connection with the means for supporting the various elements here provided, the primary structure is that of a frame indicated generally at 19 and having upright supporting portions 20 and 21 at opposite ends of the forming section which are suitably affixed to the operating fioor F and extend upwardly to a main cross or longitudinal support 22. A plurality of parallel drop legs 23a, 23b, 230, etc. are provided for each of the units a, b, c, etc. and the drop legs 23a extend downwardly from the longitudinal support member 22 to merge with the side walls of the tank a to complete the overall frame structure 19. The movement of the individual upper couch roll 18a is provided for by a pivot arm 24a and adjustable locking device 25a. The pivot arm 24a mounts the upper couch roll 18a for rotation at one end of the arm and at the other end of the arm 24a it is pivotally secured to the drop leg 23a. The adjusting device 25a is secured to the middle of the pivot arm 24a and is adjustably mounted (as by the threaded engagement here shown) on the drop leg 23a, so that it may be moved 23a of the frame 19 for limited adjustment.

The pickup felt 13 has the upper run thereof moving over a plurality of guide rolls 26 and the felt then is turned about a turning guide roll 27 mounted at the forward end of the tank 15a of the first unit a by suitable bearing means 28, and the lower run 13 of the felt 13 then passes from beneath the turning guide roll 27 to return in substantially a horizontal direction across the top of each of the cylinder mold units'a, b, 0, etc. and finally through a pair of guide and press rolls 29 and 30 positioned after the last cylinder mold unit 6. The individual upper couch rolls 18a, 18b, etc. may each affect the travel of the lower pickup felt run 13' to a limited extent, in urging the felt run 13 against the individual forming wires 11a, 11b, etc. This movement is, however, relatively limited and it has not been used used effec- 'of, the type here shown, as well as the actual 'design tively to actually move a lower'felt run against and away from an individual cylinder mold in a commercial operation. Instead, it has been found that the instant forming wire 11a and turning roll 14a arrangement must be used to actually effect the operation of taking a cylinder mold out of operation or putting a cylinder mold into operation without interrupting continuous operation of the whole forming section 10.

The interchange of one cylinder mold unit for another on the operating line is accomplished in accordance with the instant invention by the provision of means for adjusting the position of thte turning roll 14a, 14b, etc. in each unit. The particular means provided will be described hereinafter, but the function of such means is that of dropping one turning roll, such as the turning roll 14c down below the lower pickup felt run 13' so as to avoid cooperation between the pickup felt 13 and the forming wire 11c; and raising another turning roll such as the roll 14a upwardly to effect cooperation between the forming wire 11a and the felt run 13'. As will be appreciated, the turning roll 14c as well as the lower roll 17c is a relatively large piece of equipment and the mechanism required for raising and lowering the rolls 14c and 170 may be relatively complex in nature, although the provision of such mechanism generally as here indicated will be fully understood by those skilled in the art from the instant disclosure. As shown in Figure 4, the backside of the cylinder mold unit c may be provided with a frame member 310 suitably anchored to the fioor F and presenting a pair of upright legs 32c and 330 which mount a crossbeam 34c. The crossbeam 34c and upright leg 330 have an arcuate track 35c suitably located therein to permit vertical as well as horizontal movement of a stub shaft 36c therein. As indicated in Figure 4, the stub shaft 360 has a yoke 37c clamped to the outer extremity thereof to hold the same against rotation, and the yoke in a given position, or the yoke 370 may be released and recla-mped upon the shaft 360 in order to hold the shaft 36c at a different angular position relative to the yoke 37c.

Referring now to Figure 3, which shows other features of the-structure mounting the rolls 14c and 17c, it will be seen that the stub shaft 36c is formed at one end of a mounting bar 400 which extends the full length of the rolls 14c and 170 and which has mounted near opposite ends thereof frame members 410 and 420 which carry suitable bearings (not shown) for rotatably receiving the shaft 430 of the roll 14c and the shaft 440 of the roll 170. The rolls 14c and 17c are thus carried on the mounting bar40c, which in turn is moved upwardly and downwardly and horizontally in accordance with the movement of the stub shaft 360 thereof.

It will be appreciated, of course, that a stub shaft corresponding to the stub shaft 360 could be mounted in a similar manner at the opposite end of the supporting bar 400 so as to provide supportat both ends of this bar, andsuitable hydraulic moving means, such as the cylinder 39c could be positioned so as to operate at both ends of the mounting bar 40c. However, it is particularly desirable to provide an arrangement whereby the mounting bar 400 (and the rolls 14c and 170) are cantileverly mounted at one end thereof, as shown in Figure 3. Such cantilever mounting will, of course, involve a very sturdy structure on the part of the leg member 330, as

well as'an anchoring or weighted portion 45c extending outwardly from the depending leg 33c and suitably fastened to the floor F, so as to balance the assembly. The structural details of a suitable cantilever mounting of .members of suitable strength and weight are well within the skill of those familiar with the art, and the spect to the showingof actual "sizes of the elements.

Ih i r a y .o isj t t n t nts s lqsut is 1,,9 pointing 'outthe superiority of a cantilever g for the ro M ans 1.7 .2 Qwel aj a ius atfl mquntins for those rolls (by movement of the stubshaft igoe in the r a track 35 The ca t eve mqi ntins Sh w permits the removal of the forming wire i lc and'the replacement thereof with another forming wire, when such is necessary during operation. During normal operation, as indicated, for example in connection with the unit 2, the support member 42:: suitably carries the rolls 14e and 17a and is supported. by a bridging mem- 126L466. which is mounted on a flanged floor support 476. When it is desired to take the cylinder 'mold unit out of service, however, the member 462 is unbolted from the flanged floor member 47(2 and the cross support member 421: and removed. After the leg member 46e has been removed, the rolls l le and 17s are cantileverly supported, as indicated in connection with the unite in Figure 3, and the entire assembly may be moved downwardly and to,- wardthe cylinder mold as indicated in-the showing of the unit c in Figure 1. In Figure 3, the same position of the unit c is shown with the member 460 removed from the structure.

In like manner, as shown in Figure 2, the cylinder mold l itself must be provided with a suitable cantilever support arrangement, so that the forming wire may also be removed from the cylinder mold at the same time it is removed from the rolls 14c and 170. As shown in Figure 2, the cylinder mold 12eis suitably supported by bearings 480 and 49s; the bearing 48c being suitably mounted in the frame 310 (as shown in Figure 4) and being supported by the drop leg 32c and suitable anchoring means 500 aflixed to the drop leg 32c and to the Floor F. The

details of white water removal lines, etc., which would ordinarily be located within the hollow shaft 510 of 'the cylinder mold 120 which is supported in the bearing 480 are, of course, omitted for the purpose of simplif'yingthe instant drawings. The stub shaft 520 at the opposite end of the cylinder mold 12c is supported by the bearing 490, which is ordinarily supported by a bridging 'memher (not shown, but indicated atthe location 53e in the unit e). The bridging leg member issuitably supported on a fiang ed'floor support 54c duringordinary'operation,

and this member is removed as shown in Figure 2 when it is desired to replace the forming wire.

Also the stock inlet 160 is suitably mounted, for example, on a track 55c to permit limited movement toward and away from the cylinder mold 12c, for moving the inlet 160 back to the position shown in unit: 0 during the wire changing operation. Means are thusprovided for separating all outside elements such'as the inlet 1 6c from the outside of the forming wire loop and pulling together all inside elements from within theforming wire loop to permit replacement of the wire-11c, without interrupting the operation of the remaining cylinder mold units a, b, d and 2.

It will be understood that modifications and variations may be effected without departing from the scope of the novel concepts of the present invention.

We claim as our invention:

1. A cylinder type paper machine, comprising a'plurality of separate looped forming wires, a cylinder mold within the loop of each of said forming wires for elfecting fibrous web formation on the wire, a looped pickup'felt having a felt run positioned above the upper run of each of said forming wires to receive the fibrous web therefrom, and a turning roll within the loop of each of said forming wires for selectively directing the upper run of each wire against and away from the felt run to respectively permit and prevent web transfer fromthe wire to the felt.

, 2. A cylinder type paper machine, comprising a plurality of separate looped forming wires, a cylinder mold within the loop of each of said forming wires for effecting fibrous web formation on the wire,'a looped'pick'up 'felt' pickupfelt havihg a feltyiun positioned above the upper runfof each stasis forming wires, "a couch roll posiabove each "of s'aid f orrnin'g wires and within the loop of saidfeIt for directingthefieltagainst each at 's'aid'forming wires-to receive" the fibrous web therefrom, and a turning roll within the loop of each of said forming wires for selectively ecting" the upper run of each wire against and "away" i felt run-to respectively permit preventweb transfer fr om the wire to the-felt. 41*A cylinder type paperimachine,comprising a plurality of separate'looped-forming "wires, a cylinder mold I the loop bf 'eaeh of said forming wiresfor effect- :ing'fibrousweb iforniation-on the wire, a looped pickup felt ihavirig a fe n positioned above the upper run-of each "of said fo gv ir'eis; a couch roll positioned above eaeh er saidi' formmg wire's and within the'loopof said felt for {direeting the 'felt against each of said iforming fwire'sgto receive the fibrous web therefrom, a turning ro withinfthe floop-of each of said forming wires, and incans"engaging efach or idftu rning rolls'to moveeach roll for selectivelydirect g the'upper run of each wire Tagairistan'd" away from e felt runfto respectively perand prevent w'eb itr ris fe'rifrom the wire tot-he felt. I Afcylinder typefpaper machine,-'com'prisinga frame, a plurality of cylindenrnolds-alignedfwithinthe frame, se pa ra floope d forining wires for each cylinder mold g'the cylinderfrnol d, within the" loop thereof for effectingfweb formationon such wire's,;a looped pickup fe osition'ed above 'the cylinder molds "andftrained m tinted fon the -frame and; located respectivelybefore the first or the aligned cylinder molds" and after the last of the aligned cylinder g-molds, a plurality ofturning rolls feach within the ioop' of one of said forming 'wires, fan d separate rn'ounting means on said frame 'for each of said'turning rolls-for rnovernentofthe individual roll to selectively urgegthe wire "associated therewith towardand away from the-felt to respectively fpermit and prevent web,trans fer frorn thewire to..the felts Y ,Y

" 6; A cylinder type paper machine,'1comprising a frame,

tively before thef first of the aligned cylindermolds and after the last of the aligned cylinder molds, a couch roll positioned above each of said forming wires and within-the loopfof said 'felt for directingxthe'felt against each of said'forming wires to receive the fibrous web therefrom means swinglably mounting each of said couch rolls on said frame, a plurality of turning rolls each within'the loop of one of said forming wires, and separate mounting means on said'frarne'for 'each'of said t,u'r nir ig rolls for movement ofthe individual roll to selectivelyurge the wire associated therewith toward and away from the felt to respectivelyipermit and prevent web 'transfer'from the wire to thefelt.

7. A cylinder type paper mach1ne,;cojrnpr1sing a frame,

ia'plurality of cylindermoldsaligned within the frame, fbeai'ing means mounted. on 's'aidfframe cantileverlyg sup- "portin'g'each' ofsaid cylindermolds at one e'ndthere'of,

separate looped forming wires for each cylinder mold having the cylinder mold within the loop thereof for effecting web formation on such wires, a looped pickup felt trained around rolls mounted on the frame and located respectively before the first of the aligned cylinder molds and after the last of the aligned cylinder molds, a plurality of turning rolls each within the loop of one of said forming wires, and separate mounting means on said frame cantileverly supporting each of said turning rolls at the end thereof corresponding to the cantileverly supported cylinder mold end and movable on said frame to selectively urge the wire looping the turning roll toward and away from the felt, said cantilever support means for each cylinder mold and associated turning roll cooperating to permit removal and replacement of the forming wire associated therewith without disturbing the operation of the other cylinder molds aligned therewith.

8. A cylinder type paper machine, comprising a plurality of separate looped forming wires, a cylinder mold within the loop of each of said forming wires for effecting fibrous web formation on the wire, a looped pickup felt having a felt run positioned above the upper run of each of said forming wires to receive the fibrous web therefrom, a turning roll within the loop of each of said forming wires for selectively directing the upper run of each wire against and away from the felt run to respectively permit and prevent web transfer from the wire to the felt, and bearing means cantileverly supporting each cylinder mold and associated turning roll to permit removal and replacement of the forming wire associated therewith Without affecting the cooperation between the felt and each of the other forming wires.

9. A cylinder type paper machine, comprising a plurality of separate looped forming wires, a cylinder mold within the loop of each of said forming wires for elfecting fibrous web formation on the wire, a looped pickup felt having a felt run positioned above the upper run of each of said forming wires to receive the fibrous web therefrom, a turning roll within the loop of each of said forming wires, means engaging each of said turning rolls to move each roll for selectively directing the upper run of each wire against and away from the felt run to respectively permit and prevent web transfer from the wire to the felt, and bearing means cantileverly supporting each cylinder mold and associated turning roll to permit removal and replacement of the forming wire associated therewith without afiecting the cooperation between the felt and each of the other forming wires.

10. A cylinder type paper machine, comprising a plurality of separate looped forming wires, a cylinder mold within the loop of each of said formingwires for effecting fibrous web formation on the wire, a looped pickup felt having a felt run positionedabove the upper run of each of said forming wires, a couchroll positioned above each of said forming wires and within the loop of said felt for directing the felt against each of said forming wires to receive the fibrous we b therefrom, a

turning roll within the loop of each of said forming wires for selectively directing the upper run of each wire against and away from the felt run to respectively permit and prevent web transfer from the wire to the felt, and hearing means cantileverly supporting each cylinder mold and associated turning roll to permit removal and replacement of the forming wire associated therewith without affecting the cooperation between the felt and each of the other forming wires.

11. A cylinder type paper machine, comprising a plurality of aligned pairs of upper and lower couch rolls in nip defining relation, a looped pickup felt passing through all of said nips and enclosing within its loop all of said upper couch rolls, a cylinder mold below said felt associated with each of said lower couch rolls, a separate looped forming wire passing through each of said nips and enclosing within its loop one of said lower couch rolls and the cylinder mold associated therewith for effecting web formation on the wire and transferring the web to the felt at the nip, mounting means for each pair of upper and lower couch rolls, and independent adjusting means cooperating with each of said mounting means to selectively move the pair of rolls in and out of nip defining relation.

12. A cylinder type paper machine, comprising a plurality of aligned pairs of upper and lower couch rolls in nip defining relation, a looped pickup felt having a substantially horizontal run passing through all of said nips and enclosing Within its loop all of said upper couch rolls, a cylinder mold associated with each of said lower couch rolls and positioned just below the lower couch roll associated therewith, a separate looped forming wire enclosing Within its loop each lower couch roll and associated cylinder mold and running upwardly from the cylinder mold and over the lower couch roll, mounting means for each pair of upper and lower couch rolls, and independent adjusting means cooperating with each of said mounting means to selectively move the pair of rolls in and out of nip defining relation.

13. A cylinder type paper machine, comprising a plurality of aligned pairs of upper and lower couch rolls in nip defining relation, 21 looped pickup felt passing through all of said nips and enclosing within its loop all of said upper couch rolls, a cylinder mold associated with each of said lower couch rolls and positioned just below the lower couch roll associated therewith, a separate looped forming wire enclosing within its loop each lower couch roll and associated cylinder mold and running upwardly from the cylinder mold and over the lower couch roll, means swingably mounting each of said upper couch rolls, and adjustable means mounting each of said lower couch rolls movable in both vertical and horizontal directions cooperating with the upper couch roll mounting means to selectively move such rolls in and out of nip defining relation and to alter the angle of the plane of the nip.

14. In a cylinder type paper machine, in combination, upper and lower couch rolls in nip defining relation, a looped pickup felt passing through the nip of said couch rolls and enclosing within its loop the upper couch roll,

a cylinder mold positioned beneath the lower couch roll,

a separate looped forming wire enclosing within its loop the lower couch roll and the cylinder mold and running .upwardly from the cylinder mold and over the lower couch roll and through said nip, and adjustable means mounting the lowercouch roll movable in both vertical and horizontal directions to selectively move the lower couch roll away from and toward thecylinder mold and in and out of nip defining relation with the upper couch roll.

15. In a cylinder type paper machine, in combination, a looped forming wire, a cylinder mold within the loop of said forming wire for effecting fibrous web formation on the wire, a looped pickup felt having a felt run positioned above the upper run of said forming. wire to receive the fibrous web therefrom, a turning roll within the loop of said forming wire for selectively directing the upper run of said Wire away from and against the felt run to respectively prevent and permit web transfer from the wire to the felt, and bearing means cantileverly supporting the cylinder mold and the turning roll to permit removal and replacement of the forming wire when the turning roll i in a position directing the upper run of the wire away from the felt.

References Cited in the file of this patent UNITED STATES PATENTS 1,514,556 Milkey Nov. 4, 1924 1,718,574 Millspaugh June 25, 1929 1,799,092 Erkens Mar. 31, 1931 1,829,660 Knopp Oct. 27, 1931 2,046,270 Lane et al. June 30, 1936 2,501,716 Friel Mar. 28, 1950

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