US1679523A

US1679523A - Paper making machinery

Info

Publication number: US1679523A
Authority: US
Publication date: 1928-08-07
Anticipated expiration: 1945-08-07

Description

' Aug. 7, 1928. 1,679,523

E. HEISEL PAPER MAKING MACHINERY Filed May 25, .1925 2 sheets-sneak 1 Aug. 7, 1928.

R. E. HEI$EL PAPER MAKING MACHINERY Filed May 25, 1.925 2 Sheets-Sheet 2 Patented Aug. 7, 1928.

UNITED STATES PATENT OFFICE.

RALPH E. HEISEL, OF CHILLICOIHE, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO PAPER MACHINERY CORPORATION, OF DAYTON, OHIO, A CORPORATION OF OHIO.

PAPER-MAKING MACHINERY.

Application filed May 25,

The present invention relates to appara tus for making paper, and more particularly to that portion of the apparatus which has to do with the flowing of the paper-making stock or pulp to form a sheet or web of paper.

One of the principal objects of the invention is to provide a stationary deckle for a moving Wire upon which the paper is formed.

Other objects and advantages of theinvention will be apparent from the followingdescription when taken in connection with the accompanying drawings, in which;

Fig. 1 is a plan view of a device embody ing the present invention;

Fig. 2 is a. side elevation of the device shown in Fig. 1;

Fig. 3 is an enlarged detail, partly in section, taken on the line 33 of Fig. 1;

Fig. 4 is a perspective view showing a detail of construction;

Fig. 5 is a somewhat" diagrammatic View to illustrate the operation of the present invention;

Fig. 6 is a fragmentary detail view, in section, of the adjusting mechanism, on the line 6-6 of Fig. 3; and

Fig. 7 is a view similar to Fig. 3 showing a second form of the invention.

As showing a preferred embodiment, the invention is illustrated in connection with a Fourdrinier type of paper-making machine. In a machine of this type the pulp or other fibrous material suspended in water, and hereinafter referred to generally as pulp, is supplied to a flow-box, whence it is fed through. a suitable opening at the desired rate across a flow-directing apron on to a traveling wire, which may or may not be given a transverse oscillatory motion, this wire being endless and suspended upon two rotatable rolls, the roll at the flow-box or inlet end being called the breast roll, and the roll at the other or outlet end of the wire being generally called the couch roll.

In the drawing the flow-box is indicated generally at 20, the endless wire at 21 and the breast roll for the inlet end of the wire at 22. It will be understood that the wire, or wire-cloth which is a screen of fine mesh wire, passes over the breast roll 22 in the direction indicated by the arrow, so that, when the wire reaches the upper side of the 1925. Serial No. 32,688.

breast roll it travels in a direction away from the flow-box 20. As is usual in apparatus of this type, the wire passes over a series of supporting or tube rolls 23, and over suction devices or boxes 24, and thence over a couch roll, which couch roll is not illustrated herein.

The flow-box is provided with an outlet opening through which the pulp flows from the flow-box and is uniformly distributed upon the Wire. The outlet of the flow-box comprises an apron 25 adapted to overlie the inlet end of the wire, and a lip or plate 26 spaced from the apron 25 to provide a relatively narrow slot or opening for the flow of the pulp on to the wire. For purposes of simplicity of description this outlet opening is shown as of constant width being closed by end plates such as illustrated at 27, but of variable height so as to vary the thickness of pulp which is permitted to flow upon the wire.

As is well understood in the art the function of a deckle is to restrain lateral spread of the pulp upon the wire to thus retain the pulp within an area of a given width upon the wire while the water is being extracted and the paper being formed, so that the web or sheet of paper coming from the wire will be of a predetermined width. The present invention provides a stationary deckle means for the wire that is, a deckle which is stationary with the frame work of the machine, and does not travel with the wire. The deckle means comprises a deckle rail 30 supported upon a plurality of supporting tubes 31, which tubes are pivotally mounted as at 32 upon suitable brackets 33 carried upon the side frame 34 of the machine. Referring to Fig. 3, it will be seen that the supporting tubes 31 extend laterally from the side frame of the machine over the wire 21. so as to support the deckle rail 30 above the wire 21. Each bracket is provided with an adjusting screw 35 for adjusting the height of the deckle rail 30 from, the wire 21 and a locking screw 36 for locking each bracket in said adjustable position. To permit moving of the deckle rail 30 laterally over the wire in order to vary the width of the web of paper the supporting tube 31 is provided with adjusting means consisting of an adjusting screw 37 rotatably mounted in suitable bearings within the tube 31.

Threadedly mounted on the screw 37 is an internally threaded collar 5:38 which has an arm extending through slot 39 in the tube 31 and secured to the decide rail 30 to support the ltltlitili. The collar also has an external or ring portion l surrounding the tube 31, this ring portion carrying a locking screw ll by which the parts may be locked in their adjusted positions upon the tul e 81. A. bevel gear mounted upon the outer end of each of the adjusting screws 37, each of these gears meshing; with a cooperating beveled gear l3, the several gears a laying,- mounted upon the actuating' sha'lt l-'i. The actuating shalt. ll; is sup 'iorted from the bracket by means of the brackets l and may be provided with a crank it or other suitable means whereby the actuating shatt may be rotated to eliect sinuiltaneous movcment of the several a liusting screws so as to move the decide rail to any desired position. Unly one side of the paper-matting machine, and therett'ore only one deciding arrangement is shown; llut, of course, both sides of the machine are provided with the decide ar 'angement, the apparatus on oppo site sides being exactly alike in construction Xcept for necessary reversal of parts. course, the two decide arrangements should give sn'iooth, parallel edges to the paper and the means for moving the decide rails is therefore so constructed. that the rails on opposite sides oil the machine are at all times parallel to each other.

Mounted upon the decide rail 30 idly secured thereto by means ct s iitablz lwackets are a number oi pipes 51 by which water, air or other suitable fluid may be led to the d ichle arrangement under pressure. its best shown in Fig. 3, the lower portion of the decide rail 30 is beveled from its lower inner edge outwardly and upwardly t an angle of approxii'uately 45 degrees. The pipes 5i are Pi vided with a series ol apertures or openings 52 which are so dispose-1' as to discharge water or air upon the wire Qt, the same being caused to impact with the sire ll underneath the low or edge of the decide rail 30 and preferably ad'accnt the intersection oi? the inner surface of the rail with the wire.

lYhile the term ot apparatus shown and described above has been found to give e1- trcmcly satisiuctory results while ii unetiouing as a decli'le ai'rant'en'ient to limit. the lateral spread of the pulp upon the tornriugr wire in such wise to produce a sheet of paper having si'lhstantially s iniooth parallel edges, nevertheless the precise ar 'angenicnt shown is not necessary for practising applirants invention. The pulp as it is lowed on to the wire is quite illuent and tends to readil spread in all directions. To secure a she of paper of the desired width it is therefore necessary to prevent undue lateral spread of the pulp. And in this invention this lateral spread is prevented by directing a llow of water, or t-her fluid under pressure against the pulp upon the wire to overcome its inherent tendency to SDILGRCl. Of course the lateral spread of the pulp may be quite positively restrained by the use oft a solid vall, such as the conventional rubber decide strap. But such a strap results in rapid vicar the wire, and has other undesirable features. The rigid stationary decide rail 30 described above functions as a positive limiting; wall to prevent the late *al spread oi' the pulp. ill: such a all were maintained in contact w'tl'i the wire the wear would be much more rapid than with the conventional rubl' er tlOChlG strap. But by providing such a all, and spacing it a slight distance above the wirc and this distance need only be suilicient to avoid actual contact oi the wire and tie rail and directing a flow of water i: o the space between the rail and the wire 1 al sin-cad oi? the pulp may be pre- "ent tnl. in the arrangei'nent shown with beveled lower portion of the rail the rerainingg rater is directed downwardly grainst the wire, into the small clea'ance ctween the rail and the wire and the pressu .e water thus injected, through the kinetic due to its pressure, builds up what is practical etifect a continuation of the f l rail 30, although this continuation because at its mobility avoids all of the objecfeatures that would be present were 2:: read actually brought in contact with it is apparent that the invention not limited to the use of water, but that i ble fluid, such as air, may be emthis purpose. The deckle rail 30 i usted vertically so as to .ii'iereasc c: l the gap between the wire and the dec' 3 rail, thereby varying the line or zone oi? action of the impact fluid upon the wire and noon the edgeol the pulp. In the eiuhodin entof the'iuvention ilhistrated, the

liuid is r-illOWtl as directed a3: inst the wire in lateral t i '4 ion at an angle of approximate ly 4.5 degrees as at an angle 0 tlll'ttt'lOIl of t illust'ated inl ig 3, and t degrees to the wire in the ravcl oi the latter, as shown in l 9, and 5. .lt will be apparent, iowever, that the irssure ot the fluid and its di ecti n oi application. as well as the distance of the openings from the wire, are subccl' to variation, these i actors being! more or 1. intcrdepcndeot upon one another.

while the decide rail. 30 is provided i a convenient means for varyinglhe line of action of the impact fluid upon the edge of the pulp, it. may be stated that its function and adiustment depends somewhat upon the pre n c, direction, and point of application ot the impact fluid and that by suitable control and application of the fluid, the positioning of the decide rail 30 may be widely varied or even entirely omitted in some cases. Such a c nstruction in which the decide rail has been omitted is illustrated in Figs. '7. from which it will a spear the fluid ppc 51 is carried directly the collar or ring; aid. The construction of the supporting tubes 31., supporting brackets, and adjust .no means tor this term of the invention may be the same as illustrated in l to (3, from which it is apparent that the fluid tube may be adjusted vertically or horizontally relatively to the forming wire to vary the action or point oi application of the impacting fluid as dw'rcd.

The .lluid coz'u'luit is illustrated in the drawing as tons mg of three short pipes which connect separately with the source 0t fluid, and are controlled separately by the '\'alvc.=-; the purpose of this construction being to insure a better control ojt fluid pres sure in the pipes and upon the wire, but it will be understood that the pipes may be increased in number, or decreased in number, as desired, upon so proportioninp; the same as to insure the delivery of the [laid in the desired manner along the several points of the wire.

The pivotal connection 32 between the tubes 11 and the brackets 83 is such that the tubes 31, the parts carried thereby, and the entire adjusting i'iuauis constitute a unitary structure which may be swung upwardly and outwardly about 32 as a pivot so as to not interfere with the tree upward move ment oil the wire 21 when it is desired to move the same from the machine for re placement or repair.

is already stated the decide means including the decide rail 30 movable so as to vary the width ot the web of )aper being il'orzneil. in order to direct the flow of the pulp coining thriursrh the outlet of the flow-be); Qt) and to prevent the same from flowing to the outer side ot the declrle rail, there is provided an adjustable connection between the end of the decide rail and the outlet of the limv-box. lhis adjustable connection, as best illustrated n ldig. 4%, comprises a curved closure plate (it) which cooperates with the end plate 27 the apron 25 and the lip 26 to close the end of the effective outlet opening. An L-plate extension or tongue (ll extends from the closure plate (30 and 1s adapted to receive the end of the decide rail lit). An ear ()2 is also mounted on the closure plate (30 adjacent the u pright portion at the extension (31, and at a distance some what greater than the width ot the rail 30, which, when the device is assembled, is positioned between this car and the upright portion ot the extension. By means elf this arrangement undue lateral separation oi? the rail and the extension is prewnted,and, in addition, the rail during lateral adjusting ill the ear or the movement cooperates w extension to cause concomitant movement of the closure plate. The closure plate may be. adjusted relative to the apron 25 and lip 26 ot the outlet opening by adjusting means (33, and then securely clamped in position upon the apron 25 by the clamping means (i l.

From the foregoing it will be apparent that the present invention provides a stationary declile means for a traveling wire, the decide means being simple in construction and easily adjustable to any desired position. The decide maintains the pulp within the proper area when it is flowed upon the wire, and until sullicient water has been removed from the pulp tor the web of paper to take 1 pern'ianent set. Ordinarily the declde need not extend beyond the suction boxes 2%, sullicient water having ordinarily been removed from the pulp by the time it reaches the suction boxes to make further use ot a declde unnecessary. By means oil? this invention the desired restraino of the lateral spread of the pulp and lting control ot the Width of the sheet of paper being formed is secured without any solid part of the deckle means beingbrought into contact with the wire. Consequently there 15 a very material increase in the lite oi? the wire, there being no excessive wear upon the latter at the declzle edge as in the case oi? the previously known form if decide means, this being an item of: con siderable importance in the maintenance of the machine owing to the great cost of the wires. A further advantage ot the present invention is to increase the output of the machine owing to the tact that the same may be operated continuously for longer periods than heretofore without the necessity for stopping the machine to cl ange l'Vhile the method herein described, and the term of apparatus for carrying this methoiil into ellect, constitute prelerred. em bodiments ot the invention, it is to be undermood that the invention is not limited to this precise method and form 0t apparatus, and that changes may be made .in either without departing from the scope of the inrtion which is defined in the appended claims.

lVhat is claimed is:

1. in the making of paper in paper-makre; apparatus having a torming wire and neans :t'or flowing pulp upon said wire, the i "bed of confining the pulp to a predeteri red area upon the vire by controlling the teral spread thereot, which method con- ;is s ii impinging a i'iuid on said wire at h edge of said area.

in the making ot paper in paper-malttpparatus v a 11, a ll lorming wire and means tor flowing pulp upon said wire, the

methoe ot' confining; the pulp to a predetermined area upon the wire, which method in la consists in directing a flowing stream of fluid against the pulp upon the wire to prevent the lateral spread oi such pulp.

3. In the making of paper in PRPGY-Hlllliing apparatus having a traveling wire and i'neaus :t'or flowing pulp upon said wire to term a web of paper thereon, the method oi": coutrolliin the width of said web upon the wire, whicn method consists in in'ipinging a fluid upon the wire along a line substantially coextensive with the intended edge of said web 01' paper, to restrain lateral spread of the pulp on the wire.

l. In paper making apparatus, a wire, means for flowing pulp upon said wire, and deckle means associated with the wire for limiting lateral spread oi the pulp upon the wire, said decide means comprising a stationary decide member spaced from said wire.

5. In paper making apparatus, a wire, means for llowing pulp upon said wire, and decide n'ieans associated with the wire :i'or limiting lateral spread oi the pulp upon the wire, said decide means comprising a stationary deckle men'iber spaced from said wire, and means for impinging a iiuid upon the wire adjacentthe stationary decide mom leer.

6. In paper making apparatus, a wire, means tor flowing pulp upon said wire, and decide means associated with the wire tor limiting lateral spread of the pulp upon the wire, said deckle means comprising a rail above the wire and spaced therefrom, the rail having its lower edge beveled, and means for impinging a fluid upon the wire along the line of said beveled edge.

7. In paper making apparatus, a wire, means for flowing pulp upon said wire, and decide means associated with the wire for limiting lateral spread of the pulp upon the wire, said decide means comprising a rail above the wire and spaced therefrom, the lower edge oil the rail being beveled outwardly and upwardly from the edge thereof to ing the pulp, and means on the outer side of said rail tor impinging a. fluid between the wire and the lower edge of the rail.

8. In paper making apparatus, a wire, means "for flowing pulp upon said wire, and decide n'ieans associated with the wire :lor limiting lateral spread of the pulp upon the wire, said decide means com; 'ising a rail above the wire and spaced tilGl'QilOl'il, ti rail having its lower edge beveled, and means for impinging a fluid upon the wire at an angle of approximately a5 degrees to the wire.

9. In paper making apparatus oi the charactor described, a traveling wire, means tor flowing paper-forming stock upon said wire, and deckie means amsoeiated with said wire for restraining lateral spread of the stock upon said wire, said decide means comprising a stationary decide member out of contact with said wire, and means for supplying fluid between said deckle member and the wire for restraining spread of the stock upon the wire.

10. For use in paper making apparatus having a wire and means for llowing pulp upon said wire; deckle means comprising a rail, means for supporting said rail above the wire in spaced relation thereto, and means associated with said rail :tor flowing a fluid along said rail to limit lateral spread of the pulp upon the wire.

11. In paper making apparatus, a traveling wire, means r'or flowing pulp upon the wire to term a. continuous web thereon, and stationr-iry deckl-e means at all times out of contact with the wire for controlling the lateral spread. of the pulp upon the wire.

12. n paper making apparatus, a traveling wire, means for flowing pulp upon the wire to term. a continuous web thereon, and decide means for cont-roiling the lateral ad of the pulp upon the wire, said decide means comprising a stationary deckle member positioned above and in spaced relation to the wire along the edge of the web.

13. In paper making apparatus, a travel ing wire, n'ieans ior flowing pulp upon the wire to form a continuous web thereon, and decide means for controlling the lateral spr ad oi the pulp upon the wire, said decide means comprising a stationary deekie member positioned above the wire and spaced therefrom, and means for adjusting the position of the Celtic member relative to the wire.

i i. In paper making apparatus, a traveling wire, means for flowing pulp upon the wire to "form a continuous web thereon, and decide means for controlling the lateral spread of the pulp upon the wire, said decide means comprising a stationary decide menu ber positioned above the wire, and bracket means for supporting the decide member in position, said bracket means being so constructed and arranged as to permit the decide member and bracket means to be moved bodily out of the path of the wire to permit the upward removal of the latter.

15. In paper making apparatus, a. traveling wire, means tor flowing pulp upon the wire to term a continuous web thereon, and deckle means for controlling the lateral spread of the pulp upon the wire, said deckie means con'iprising an elongated stationary decirie member positioned above the wire, means for supporting the deckle member, and means for moving the elongated deckle member as a whole transversely of its length, whereby to Vary the width of the web.

16. In paper making apparatus, a moving wire, means for flowing pulp upon the wire to form a continuous web thereon, and deckle means for controlling the lateral spread of the pulp upon the wire, said deckle means comprising an elongated stationary deekle rail positioned along the edge of the web, means for supporting the elongated rail, a plurality of adjusting devices for moving the elongated rail lat =raily whereby to vary the width of the web, and a common means for actuating said adjusting devices in unison, said elongated rail, the supporting means therefor, the adjusting means therefor, and the actuating means, being constructed as a unit and so connected with the frame of the paper making apparatus as to permit upward removal or the wire while maintaining said connection with the frame work of the apparatus.

17. In paper making apparatus of the character described, a traveling wire, means for flowing paper-formin stock upon said wire, and deckle means for rest aining lateral spread. of the stock upon said wire, said deckle means comprising means for impinging a fluid spray on said wire at the edge or said stock.

18. In paper making apparatus of the character described, a traveling wire, mew-.s for flowing paper-forming stock upon said wire, and deckle means for restraining lat eral spread of the stock upon said wire, said deckle means comprising a pipe connected to a source of pressure fluid and xtending above the said wire, said pipe having perforations to direct a fluid spray along the edge of said stock to limit the spread of the stock.

19. For use in paper making apparatus of the character described having a traveling wire and means for flowing paper-forming stock upon said wire; deckle means for re straining the lateral spread of stock upon said Wire, said deckle means comprising a perforated pipe for positioning above said wire and adapted for connection to a source of pressure fluid to direct a fluid spray along the edge of said stock to limit the spread of the stock.

20. In a paper making machine, a traveling wire, means for flowing pulp upon the wire to form a continuous web thereon, a stationary deckle member positioned above the wire, and a tiltably mounted support for said deckle member adapted to elfect adjustment of the vertical position of said deckle member relative to the wire.

21. A paper-making machine comprising a movable sieve; and. means for regulating the width of the paper pulp comprising fixed boundary strips arranged a slight distance above the sieve track, and adjustable transversely, and tubes at the side of the boundary strips for forcing a fluid under pressure in the space between the boundary strips and the paper track.

22. A paper-making machine comprising a movable sieve; and means for regulating the width of the paper pulp comprising fixed boundary strips arranged a slight distance above the sieve track, and times at the side of the boundary strips for forcing water streams under pressure in the space between the boundary strips and the papertrack.

23. A paper-making machine comprising a movable sieve; and means for re ulating the width of the paper pulp comprising fixed boundary strips arranged a slight distance above the sieve track, and tubes at the side of the boundary strips for forcing fluid streams under pressure obliquely forward in the direction of the movement of the sieve in the space between the boundary strips and the paper track.

24. A paper-making machine comprising a movable sieve; and means for regulating the width of the paper pulp comprising fixed boundary strips, carriers between which the strips are removably arranged, said strips being arranged a slight distance above the sieve track, and tubes at" the side of the boundary strips for forcing a fluid pressure in the space between the boundary strips and the paper track.

25. In a paper making machine, web form ing means, dam or decide for stock on said web forming means, means for supplying fluid under pressure along the web forming means adjacent the dam or deckle, and means for controlling the volume of fluid under pressure delivered on the web forming means adjacent said dam or deckle.

26. In a paper making machine, web forming means, a dam or decide for stock on said web forming means, nozzle means for delivering fluid under pressure along the web forming means adjacent said dam or deckle, and means providing for adjustment of the dam or decide with respect to the web forming means.

27. In a Fourdrinier paper making machine, a normally stationary dam. or deckle for stock on the wire part, means for delivering fluid under pressure along the wire part adjacent said dam or deckle, means for adjusting the dam or deckle and the fluid delivering means vertically with respect to the wire, and means providing for adjust ment of the dam or decide and said fluid de livering means laterally of the wire.

28. A deckle having an elongated nozzle for delivering fluid under pressure along the web forming part of a paper making machine.

29. A hollow deckle structure terminating at its lower portion in nozzle means for delivering deckling fluid along the web forming part of a paper making machine.

In testimony whereof I hereto aflix my signature.

RALPH E. HEISEL.