US1648229A - Paper-making machinery - Google Patents

Description

R. E. HEISEL PAPER MAKING MACHINERY 2 Sheets-Sheet l Filed March 12, 1925 E. HEHSEL PAPER MAKING MACHINERY File March 12, 1925 ZSheets-Sheet 2 Patented Nov. i921 RALPH E. HEISEL, OF CHILLIGOTHE, OHIO, ASSIGNOR TO THE MEAD PULP & IPAIEE COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

PAPER-MAKING MACHINERY.

- Application filed March 12, 1925. Serial No. 15,017.

This invention relates to paper making machinery, and more particularly to that v portion of paper making machinery which hasto do with the feeding of the paper mak-. ing stock upon the forming part of the machine. Y

Onev of the principal objects of the 1nvention is to provide a mechanism of this character which is constructed for easy ad uStment to give suitable control of the flow of the stock from the flow box to the wire.

Another object of the invention is to provide mechanism of this character which is ca able of local adjustment, in addition to ad ustment as I operating irre ularities, and to thereby give great nicety control of the flow of stock.

Another object ofthe invention is to provide a device of this character which may be readily cleaned, and which permits of ready moving of the breast roll, as for the purpose of changing the wire, without the necessity of disassembling the device.

Other objects and advantages of the 1nvention will be apparent from the descrip- 'tion set out below when taken in connection with the accompanying drawing.

In the drawing in which like characters of reference designate like parts throughout the several views thereof- 'Fig. 1 is a view in elevation of a embodying the invention, the view bei direction opposite to the direction of flow the stock; Fig. 2 is a side elevation of the device shown in Fig. 1;

Fig. 3 is a side elevation of the device w th certain of the 'parts elevated into inoperative position to permit of removal of the breast roll; and

Fig. 4. is an enlarged detail view, in side elevation of the flow controlling mechanism, with parts broken away to more clearly illustrate the features of construction.

As showing a preferred embodiment the invention is illustrated in connection with a Fonrdrinier type of paper making machine. In a machine of this type the pulp, or other fibrous material, suspended in water, is supplied to a flow box, whence it is fed through a suitable opening, at-the desired rate, across a flow directing apron upon a which may or may not be given a transverse oscillatory motion, this wire being endless device ng in a and suspended upon two rotatable rolls, the

a whole, to compensate for' traveling wire,

roll at the fiow box or inlet end being called the breast roll, and the rollat the other or outlet end of the wire being generally called the couch roll.

In the drawing the flow-box is illustrated diagrammatically by the numeral 10, this flow box having suitable supporting frame work 11 associated therewith. Opening through the flow box adjacent the inlet side thereofis an outlet 12 through which the stock flows from the flow box and is uniform- 1y distributed upon the wire. Associated with this opening is an apron 15 which is pivotally mounted upon the framework 11 or some other fixed part ofthe mechanism, in

association with the outlet 12, by means of suitable pivots 16 arranged at each end thereof. A stop member 17 is suitably mounted I upon the frame work to limit the downward movement of the apron. This apron is extended a suflicient distance to overlie the breast roll '18, which is rotatably mounted and constructed in any suitable conventional manner. This breast roll carries a wire 20, and it will be noted that the apron overhangs the breast roll such a distance that its free edge u lies substantially in a perpendicular plane passing through the axis of the breast roll. The apron is cut away-at its forward or inlet edge, as shown at 21 to correspond to the curvature of the breast roll and the wire carried thereby.

In practice papers of many different grades will be made atdiflj'erent times upon a single machine. And a given kind of paper will be made in a number of different weights or thicknesses. WVhere it is desired to vary the thickness or weight of paper this is accomplished by properly controlling the quantity of stock which is flowed, per unit of time, upon the wire, this practice being too well recognized to need any discussion. In order to control the rate of flow of the stock upon the wire means is provided for varying the effective opening through which the stock flows from the flow box to the wire. This means is in the trade usually referred to as an inlet, and wherever the word inlet is used herein it is meant to designate that mechanism associated with the flow box which controls the rate of flow of the stock from the flow box to the wire, and includes among other elements the apron, and a lip member designated generally by the numeral 30 which is adjustable with respect to the llU apron so that the effective opening betweenthe lip member and the apron may be varied as desired. 7

As shown the lipmember 30 comprises an upper plate 31. This plate is provided along its rear edge with an enlargement which is substantially circular in cross section th1s enlarged portion at each of its opposite ends being provided with an extension in the nature ofa stub shaft 34 which is journalled 1n the frame 11. 'Mounted 'within ,the outlet the member 40 serving to support the enlargement 33 throughout its length. Preferably the enlargement 33 and the recessed edge of the member are constructed to give a sliding fit as the members rotate relative to each other. In order to assist in re taining the enlargement in place Within the recessed edge'of the plate 40 a retaining plate 41 is preferably bolted upon the upper face of the plate 40 this retaining plate being extended to overhang the enlargement 33 and thus retain it in osition during operation.

The plate mem er 31 is provided intermediate its widthwith a shoulder having a circular recess 45 which extends there-"across. Mounted in this recess is a-cylindrical enlargement46, carried by'the'rear edge of the flexible plate 47, the front edge of which constitutes the effective front edge ofthe lip member. A retaining plate 48 is bolted to i this shoulder, this plate having a recess 43 V therein adapted to register with, and be .complementary to, the recess 45, plate 31 and the retaining plate 48 thus functioning to-* gether to provide a recess receiving the enlargement '46. Adjacent its front edge, the flexible plate 47 has attached thereto, at suitable intervals, socket members 50 which are attached thereto in any suitable way. These members are shown in'the drawing as being riveted to the plate 47 it being of course obvious that after attachment the ends of the rivets extending through the plate 47 would be dressed down to provide a smooth surface, as the existence of irregularities or projections upon the lower face of the flex ible plate 47 would result in the accumulation of stock, orimpurities, during operation of the device andsuch accumulation would in turn tend to make irregular the effective vertical opening through the inlet. If desired these socket members 50 may be brazed orsoldercd or attached in any other desired manner to the flexible )late. This flexible plate may be of any suitable flexible material, but brass constitutesa very satisfactory material, since it is sufliciently flexible, and may be readily deformed, and at the same time is'not subject to corrosion in the presence of water which is inevitably present in paper making'machines. Each of the socket members has. positioned therein, when the device is'assembled, the head 52 of an adjusting bolt 53, which bolt is threadedly mounted within a bushing 54,this bushing being in turn threadedly mounted within a suitable passage in theupper plate 31. The adjusting bolt 53 and the bushing .54 are each provided with suitable hand wheels or the like, 55, for use in manipulation thereof. After the adjusting bolts are positioned to give desired-warping or local adjustment of the flexible plate, the bushings 54 are manipulated to bring the lower end" into frictional engagement with the upper face of the socket member to lock the'device in the desired adjusted position.

During the paper'making operation impurities tend to collect within the inlet, especially where hard water,that is water having a considerable quantity of chemicals 1n SOlutlOD there1n are used. And such collected impurities will often materially vary the effective opening through the inlet. In order that the paper produced may be uniform'throughout, itis necessary that substantially-even distribution of the stock over thewire shall'be secured. For if a greater quantlty of stock is flowed to one portion of the wire than to another the paper will be thicker where this greater quantity of stock is flowed than it will be at the place where a lesser quantity of stock is flowed. Any material local variation in the effective opening through the inlet, therefore, will result in uneven distribution and non-uniformity in the paper. in described this non-uniformityof flow may be prevented. For by the adjusting bolts 53 plate 47 may be locally adjusted or warped to give a vertical opening that will give a uniform rate of flow across the entire inlet. This warping of the flexible plate 47 is shown in Fig. 1, greatly in exaggeration, in order to more readily disclose this feature of the invention.

It is tobc understood, of course, that in warping By means of the apparatus hereproperly manipulatinm the edge of the flexiblz Itis to be notedthat the joint between the enlargement 33 andthe plate 40 is such that whatever ma be the positioning of the lip member t e lower surface of the Lesaaee joint between the flexible plate L7 and the supporting member 31.

Foreiiecting adjustment of the lip membar as a whole one of the pivot shafts 34, extends entirely through the frame 11 and is provided at its outer end with a gear 60, preferably a worm gearotbrass or'the like.

' Qooperatmg with this worm gear 60 IS a worm pinion 61, mounted upon a suitable shaft 62, which is rotatably supported by the l'rame' 11, this shaft having a hand wheel 63 upon the upper end thereof. By proper manipulation of the hand wheel rotary motion may be imparted to the pivot shaft 34' to swing the lip member up or down as desired. In order to assist in operation of the machine, in the changing of the effective opening through the inlet, the gear is provided on its outer face with suitable indicating marks 65, a pointer. 66 being attached adf'acent the gear so. that by means of 'suitab e indicating characteristics any desired positioning of the lip member to sepuic'le a given rate of flow of the stock may be As is well known the length of life of the wires which are used in paper making machines is limited, and in usual practice these wires must be chan ed about every ten days to two weeks. In c angmg thewire, which is endless, it is of course necessary to so move the breast roll and the couch roll rela-" tive to each other that after the old wire is removed, a new wire may be readily slipped in place over these two rolls, after which the breast roll is replaced in its normal operating position. And in many paper making machines the breast roll is so mounted that it must be lifted bodily upward in changing the wire. The apparatus forming the subject matter of this inventionis particularly designed to facilitate this changing of the wire. In noving the breast roll to change the wire it is not necessary to dismantle the inlet as is the case with other :forms of inlets known, but. the top member and the apron may be swung upwardly about their pivot mountings, breast roll, so that that roll may be readily removed. This upward position of the apron and the top member is illustrated in Fig. 3. When in this elevated position cleaning of the apron and of the flexible plate 47 may be readily effected.

in order to facilitate this movement means is provided for interconnecting the lip member and the apron so that by proper mani ulation of the hand wheel 63 the lip mem er may be swung upwardly into inoperative out of the path of the I scribed, the combination with a flow box,

position, the apron member being concomitantly moved upon its mounting.- This con-- necting means is preferabl detachable so that it may be disconnecte when the inlet is in operative position to permit of free ad; 7 justment of the lip member without vary ing the positioning of the apron memberin" any way. A very satisfactory form of attaching means is that shown in Fi 3 of the drawing which consists of a chain 70, the

end links of which are connected to the plate 31 and theapron 15, respectively, by means of bolts or screws. If desired the end links, of the chain ma be formed so that they may be readily s ippe'd on or off the screws 71, or the device may be so arranged that the chain and the screws are entirely re moved from the inlet, by unscrewing the screws. 7

As shown in Figs. 1 and 2 the undesirable escape of the stock through the end of the inlet is prevented bymeans of a plate 75, which is bolted to the apron and snugly fits against the end of the lip member to prevent the escape of the stock between the plate'and the lip member. In addition there is a conventional showing of a deckle strapion form of apparatus, and that changes may be i made therein without departing from the scope of the invention :which is defined in the appended claims. f

What is claimed is: i 1. In paper making apparatus of the character described comprising a flow'box having an outlet opening therein, a wire supporting breast roll positioned adjacent thereto;f a flow-controllin inlet piv'otally mounted adjacent said outlet opening and overlying the breast roll and opening onto the wire, and meansror swinging'said-inlet upon its pivotal mounting from its normal position overlying the breast roll, to permit removal of the breast roll.

adapted to direct the flow of :stock from the flow box through the outlet 2. In apparatus of the character deand the wire supporting breast roll positioned adjacent thereto of a 'flow controlling inlet comprising an apron an d a lip member each movably mounted in association with said flow box, and means for swinging the said apron and the said lip member upon their respective mountings at the same time.

3. In apparatus of the character described the combination with a flowbox and a'wire 4. In paper making apparatus of the character described comprising a flow box, and a wire supporting breast roll positioned adjacent thereto; a movably mounted flow-directing apron associated with said flow box and overlying the breast roll, a movably mounted lip member cooperating with said apron and associated with the flow box, and

. means for moving the apron and-lip member together out of their normal operating position overlying the said breast roll.

5. In apparatus of the character described the combination with a flow box, and-a wire supporting breast roll positioned adjacent thereto, of amovably mounted flow-directing apron associated with said flow box and overlying the breast roll, a movably mounted lip member associated with said-flow box and cooperating with the said apron, means for moving the lip member. upon its mounting and means connectingthe lip member .and the apron for causing concomitant movement of the lip member and the apron, the construction being such that the lip member and the apron may be moved at the same time out of their normal position overlying the breast roll.

6. In apparatus of the character described the combination with a fiow box, and a wire supporting breast rollpositioned adjacent thereto, of a pivotally mounted flow-directing apron associatedwith the said flow box, a pivotally mounted lip member cooperating with said apron and associated with the said flow box, and means for concomitantly swinging the said apron and lip member upon their respective pivotal mountings, said means comprising a detachable link connecting the said lip member and the apron. m

7 In apparatus of the character described the combination with a flow box, and a wire supporting breast roll positioned ad'acent thereto, of a pivotally mounted flowirectmg apron associated with said flow box and overlying the breast roll, and a pivotally mounted lip member cooperating with said apron and associated with the flow box, means for swinging one of the said pivotally mounted members upon its pivotal.

mountings, and detachable meansfor con-' meeting the two said pivotally mounted members, the construction being such that the apron and lip member are concomitantly moved from their normal position overlying the breast roll.

8. In apparatus of the character described with the flow box,

the combination with a flow box, and a wire supporting breast roll positioned adjacent thereto, of a pivotally mounted flow-direct, ing apron associated with said flow box and overlying the said breast roll, and a pivotal ly mounted lip member cooperating with the said apron and associated with the flow box, and means for concomitantly swinging the said apron and lip member upon their respective pivotal mountings from their normal positions overlying the breast roll.

9. In apparatus of the character described the combination with a flow box, and a wire supporting breast roll positioned adjacent thereto, of a movably mounted flow-directing apron. associated with the said flow box and overlying'the breast roll, a lip member, pivot'shafts carried by said lip member and pivotally supported in cooperationwith the said apron and in association with the flow box, link means connecting the said apron and lip member, and operatingmeans associated with one of the said pivot shafts for causing movement of the lip member about said shaft.

10. In apparatus of the character de scribed, :the combination with a flow box,

and a wire supporting breast roll positioned adjacent thereto, of a movably mounted flow-directing apron associated with the said flow box and'overlying the breast roll,

a lip .member, ivot shafts carried by said lip member and pivotally supported in cooperation with the said apronand in association with the flow box, flexible means connecting the said apron and lip member}.

scribed, the combination with a flow box,@

and a wire supporting breast roll positioned adjacent thereto, of a movably mounted flow-directing apron associated with the said flo w boxand overlying the breast roll, a lip member, pivot shafts carried by said lip member and pivotally supported in cooperation with the said apron and in association with the flow box, detachable means connecting the said apron and lip member, and operating means associated with one of the said pivot shafts" for causing movement of the lip member about said shaft.

12. In apparatus of the character described, the combination with a flow box, and a wire supporting breastroll positioned adjacent thereto, of a movabl mounted flow-directing apron associated with the said flow box and overlying the breast roll, a lip member, pivot shafts carried b said lip member and pivotally supported in tion with the saidapron and in association 7 link means connecting the said apron and lip member, and operating means associated with one of the said cooperapivotshafts for causingniovementjof the lip member about said shaft, saidg-"means comprising a gear carried by the said pivot scribed the combination with a flow shaft, a pinion cooperating-therewith, and

' ciated with the flow box, means for adjusting the lip member relative to' the apron,

and means ,carri'edby the lip member for adj'ustingI-the edge of the lip member relative tothe apron without efl'ecting bodily movement of the lip,memb'e'r. .-14..Y In paper making apparatus of the character described comprising a paper forming part and-a sourceof supply of paper forming stock; a flow directing apron mounted in association with said source of supply, a lip me'mberz cooperating with the said apron tof control the efiectiveppening through which the, paper forming stock'is fed from 'the source of supply to the paper forming part, means for ad usting the hp member relative to the apron, and means 1n dependent of said first-mentioned means for efiecting local adjustment of the'edge of the lip, member relative vto the apron without 'gfi'ecting bodily movementjofthe lip mem- 3 er. w

a 15. In apparatus er the character Ide scribed, a flow-directing apron, a lip member cooperating with said apron compnsmg an adjustable upper plate and a lower flexible plate, adjusting bolts mounted 'in'the upper plate and adjusting connections between the said bolts and the saidflexible plate where =by warping of the flexible plate may beaccomplished. v

16. In apparatus of the character dey scribed a flow-directing apron, a lip member? cooperating 4 upper plate,

with said apron comprisin an alower flexible plate, ad u'st-" ing bolts mounted in the upper plate and A flexibly connected to the lower plate where by war ing of the flexible'plate may be ac-',

complis ,and means for holdingueach said bolt-in an desired adjusted'positlon.

17. In apparatus of the; character dc L scribed 'a' flow-directing apron, a pi'votally apron, ber tovary I member and the a ron, said means commounted lip member :cooperatin with said means for swing ng sai lip meintherelative position ofthe lip prising agearfi'igi ly connected with said marks on the gear and a said' lower flexible plate.

lip. member,a secondgear cooperating 'with said first gear, and means for actuating said i second 1 gear;

cooperating with the said apron, a pivot shaft carried by said lip member, a gearon said shaft, a pinion for rotating the gear};

inion, indicating l fxed pointer assoa 7 l means for operating the ciated therewith.

19. In apparatus of the character de- 1 8.. In apparatus of the character de- I scribed a flow-directing apron, a lip member scribed, the combination with a flow box,

and'a wire supportin breast roll positioned adjacent therto; o a lip' member associated wlth said flow'box and overlyingsaid Vil breast. roll, said lip member includmga flexible plate] for controlling the flow of stock from. said flow box onto said wire,-

means for locally adjusting said flexible plate 'acrosfs the width thereof, and means for moving. -said lip) memberfrom its positionjoverlying said adjusting means.

20. In apparatus of the character deg scribed, thev combination -with, a flow box,

- and a wire supporting breastroll ositioned' reast roll to a non-operatmgposit on, without disturbing saidlocal adjacent-theretm' of aflow-contro ling inlet associated with said flow boxand normally overlying the said breast roll comprising an apron and a flexible l-ip member, means for locally adjustin y across the widt thereof relative to said said flexible lip member apron, and means fonmovin said inlet from its position overlying said reast roll, said local adjustingmeans. p a l I [21. Inapparatus of the character described,a lip member comprising a' movable upper. late; a lower flexible plate mounted -22. In a paratus of the characterv described, a ow box havm' an outlet, and a last-named means being independent of' said on sai upper plate, and means associated v with said upper plate for locally adjusting member comprising a pivotally mounted on sai upperplate, and means associated with said upper late for locally adjustingsaid jlower'flexibe plate, said parts bein constructedand arran edto form a smoot unbroken flow-contro ling surface for the stock issuing from said outlet of the flow box.

In testimony whereof. I hereto afiix my signature.

RALPH E. HEISEL.

li ed upper-(plate, a lower flexible plate mount 105 lip member associated wit said outlet, s id, v

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