US1818777A

US1818777A - Paper making machine

Info

Publication number: US1818777A
Application number: US194304A
Authority: US
Inventors: Aldrich Alonzo; Earl E Berry
Original assignee: Beloit Iron Works Inc
Current assignee: Beloit Iron Works Inc
Priority date: 1927-05-26
Filing date: 1927-05-26
Publication date: 1931-08-11
Anticipated expiration: 1948-08-11

Description

Aug. 11, 1931. A. ALDRICH ET AL 1,818,777

PAPER MAKING MACHINE Filed May 26, 1927 5 Sheets-Sheet 1 g- 1931- A. ALDRICH ET AL ,818,777

PAPER MAKING MACHI NE Filed May 26, 1927 5 Sheets-Sheet 2 af W Aug. 11, 1931. ALDRICH ET AL 1,818,777

PAPER MAKING MACHINE Filed May 26, 1927 5 Shee'ts-Sheet 5 105 I I W16 Aug. 11, 1931. A. ALDRICH ET AL 1,818,777

PAPERMAKING MACHINE Filed May 26, 1927 5 Sheets-Sheet 4 79 a 7%; 66 if g 11, 1931- A. ALDRicH ET AL 1 PAPER'MAKING MACHINE I Filed May 26, 1927 5 Sheets-Sheet 5 '9 a1 Ely-1Q 04 104 10:- 29 113 w y 99 Patented Aug. 11, 19 31 UNITED STATES PATENT OFFICE ALONZO ALDRICH EARL E. BERRY, OF IBELOIT, WISCONSIN, ASSIGNORS TO IBELOI'J. IRON WORKS, OF BELOIT, WISCONSIN, A CORPORATION OF WISCONSIN PAPER MAKING MACHINE Application filed May as,

This invention relates to paper making machines and has more particular reference to the Fourdrinier part and to controlling and regulating the flow of stock from the head box through one or more slices to the wire.-

In the making of paper there are so many factors known and unknown which affect the paper and there are so many different requirements respecting the characteristics of the paper that considerable difiiculty has been experienced in attempting to meet these requirements. Our invention provides means whereby the flow of stock onto the wire may be quickly and easily regulated while the machine is in operation to produce any desired effect within the possibilities of the ma chine. This comprehends the making of certain adjustments whereby the flow may be varied in many respects while the machine is in operation, thus allowing the operator to i make immediate corrective adjustments of the flow after observation andchecking of the resultant paper without interrupting the continuity of the process.

Our invention also contemplates as an object, the provision of novel mechanism for deckling in, that is, for changing the width of deckle. This involves the provision of deckle straps spaced from the main slice and slice-to-deckle strap dams adjustable with the deckle straps,,which will be described more fully hereinafter. I

Our invention further contemplates in a paper making machine, the provision for cer-- tain adjustments in connection with controlling and regulating the flow of stock. These adjustments are new .in the artso far as we are aware, and certain of the adjustments may be made independently or in conjunction with others, depending on the requirements in each case. In the preferred embodiment of our invention which may include both a main and an inside slice the adjustments consist, generally stated, of (l) adjustment of,

both slices length-wise with respect to the wire, (2) adjustment of the inside slice lengthwise with respect to the wire and the main slice, (3) adjustment of the main slice with respect to the breast roll for the purparts shown in Fig. 1;

1927. Serial No. 194,304.

pose of allowing a greater or lesser degree of preliminary filtration before the stock passes through the main orifice, (4) vertical adjustment of each slice to change the depth of its orifice, (5) adjustment of the main slice lip for varying the depth of the orifice withinits length, (6) adj ustment of the pond sides and width of the slice orifices to correspond with any change of deckle width, and (7) adjustment of the slice-to-deckle-strap dams together with the deckle straps when changing the width of deckle. In this embodiment of our invention the adjustment for changing width of deckle comprises an assembly adjustment of parts at one side of the machine, such 'as the deckle strap, pond sides, main and inside slice, and slice-todeckle-strap dam. Our invention is not, however, limited to the use of an inside slice; and in so far as the adjustments are concerned, our invention contemplates the provision of these adjustments individually and zollectively for the functions that they perorm.

We have also aimed to provide improve ments of the character described which will be practical and serviceable for the purposes for which they are intended.

Other objects and attendant advantages roll end of a Fourdrinier machine showing.

the application of our improvements thereto; 2 is a similar view showing the slices in a different position;

Fig. 3 is a fragmentary top view of the Fig. 4 is a similar view showingthe parts deckled in;

Figs. 5 and 6 are vertical cross-sectional views taken substantially on the lines 5-5 and 6-6, respectively, of Fig. 1;

Fig. 7 is an enlarged horizontal sectional view taken on the line 77'of Fig.1;

F1g. 8 is a fragmentary vertical-sectional vlew taken on the line 8-8 of Fig. 7;

Fig. 9 is an enlarged fragmentary vertical section taken substantially on the line 99 of Fig. 7; I

Fig. 10 is a horizontal section taken on the line 101O of Fig. 9; j t

Fig. 11 is a fragmentary View similar to Fig. 9 showing an adjusted position of the main slice;

' Fig. 12 is a detail perspective View of the slice stop-01f rubber, and

Fig. 13 is a face view of the inside slice.

In the drawings, the breast roll 14 and the Fourdrinier wire 15 are shown diagrammatically. Viewing Fig. 8, the paper stock flows from the head box through an orifice 16 onto the wire, on which filtration takes place and the sheet is formed, as is well understood in this art. The orifice 16 is formed by a main or second slice, designated generally by 17, which is supported upon and between the side walls of the head box, which walls in this case are referred .to as pond sides. In the present case an inside or first slice 18 is also employed, extending from one pond side to the other and providing an orifice 19 through which the stock flows from the head box proper to the compartment formed by and between the

slices

17 and 18 and from which it flows through the orifice 16 to the wire.

According to our invention the head box may be of any suitable or preferred construction not inconsistent with the principles disclosed herein. For purpose of clarity, the construction at only one side of the machine is shown. The bottom of the head box at its end adjacent to the breast roll comprises an apron board 21, an apron board lip 22, and an apron cloth 23, the latter being secured at its end 24, Fig. 8, in a channel bar 25 by means of wedges 26. The side of the head box comprises a stationary pond side 28, suitably fixed to the bottom of the head box, an inner pond side 29, and an outer pond side 31. In this case, each of these

pond side members

28, 29 and 31 is a separate casting. The

pond sides

29 and 31 are secured together, as will be presently described, so that the former is adjustable on the latter, and the outer pond side is in turn supported on the stationary pond side 28 for sidewise adjustment thereon. The outer pond side 31 has an outwardly extending vertical wall 32 which seats against a similar wall 33 integral with the stationary pond side 28 and is normally clamped thereto by bolts 34. The wall 32 rests at its bottom on a plate 35 of non-corrosive metal on the bottom of the head box and is confined and guided at its top in a guide groove 36 formed by a flange on the top of the stationary wall 33. 'By means of a screw 37 fixed to the stationary wall 33 and a nut 38 on said screw confined between lugs 39 integral with the wall 32 the outer pond side 31 may be adjusted inwardly and outwardly in a horizontal plane for deckling, as will be described more fully later on, it being obvious that this adjustment is made by turning the nut 38. .Slots 41 in the wall 33 allow for passage of the bolts 34 when making this adjustment. As shown in Fig. 8, the bottom of the outer pond side seats against the bottom plate 35 and extends forwardly to the oint 42 at which it is accurately finished to t the apron cloth. From'the point 42'forwardly the outer pond side is reduced in height as defined by the top and bottom

horizontal flanges

43 and 44. A bolt 45 through the bottom flange 44 through the wide part of this pond side is adapted to be screwed down against the bottom plate 35 to serve as a jack for slightly lifting the outer pond side and the inner pond side supported thereby to allow removal of the apron cloth 23 for replacement.

The inner pond side 29 is a rectangular plate clamped by bolts '46 and 47 to the outer pond side 31 and has an outwardly extending forward end 48 to the face of which the main slice 17 is clamped by bolts 49. The inner pond side is supported on the outer pond side by a tongue and groove connection 51 extending from end to end of the latter, Fig. 6, and has a flat bottom face 52 which fits against and is co-planar with the top of the apron cloth, this bottom edge being coextensive with the length of the inner pond side shown in Fig.7. By means of a screw 53 secured at one end to the clamping bolt 46 and a nut 54 on said screw confined between lugs 55 integral with the outer pond side, the inner pond side may be adjusted lengthwise of the wire upon and with respect to the outer pond side. Slots 56 in the outer pond side allow for movement of the

clamping bolts

46 and 47 when making this adjustment.

The inside'slice 18, sometimes termed the first slice is not essential to all phases of our invention but it is desired in certain conditions because of the benefical action resulting from flow of the stock through the orifice '19 into the confined compartment between the

slices

17 and 18 causing a turbulence which keeps the stock stirred up and promotes more uniform condition of the stock flowing through the main orifice 16. The inside slice is also im ortant in regulating the depth and area 0 the head of stock between the slices and the location of such head with respect to the wire. Either or both of the slices may be adjusted as will be presently apparent for varying these conditions. The inside slice may be of any suitable or preferred construction which per mits of adjustment as to length as when deckling in.. In Fig. 13, we have shown a conclamp connections permitting lengthwise ad'- justment of the slice plates to lengthen or shorten the slice and to accurately align the bottom edges. This slice is supported at each end by an adjusting screw 62 which rests on a guide bracket 63, Fig. 6, in turn supported on the inner pond side 29 with capacity to slide lengthwise thereon. The bracket 63 has a vertical groove 64 in which fits a guide 65 fixed to the slice plate. The bracket 63 also has a pair of outwardly extending lugs between which is confined a nut 66 on a screw 67 which in turn is-fixed to an outwardly projecting lug 68 on the inner pond side. It will be manifest that by turning the nut 66 at each side of the machine the slice 18 may be adjusted on the inner pond sides horizontally toward and from the main slice and that by turning the screws 62 the slice 18 may be adjusted vertically for varying the depth of. the orifice 19.

The main slice 17, sometimes referred to as the second slice when an inside slice is used, is mounted upon and between the in ner pond sides for vertical adjustment thereon and to allow sidewise adjustment of the pond sides as when changing the dieckle width. The main slice also includes a flexible lip, designated generally by 69, which may be adjusted upon and with respect to,

the slice proper for varying the depth of the main orifice 16 at points within its length. In the present case the main slice proper is in the form of a flat plate adapted to be clamped by bolts 49 against the front face of the inner pond sides, as above described, the bolts 49 being located in slots 71, Figs. 5 and 7, and passing through a clamping plate 72 which spans the slots at the rear. By reason of this construction the main slice late maybe tightly clamped to the face 0 the inner pond sides at any sidewise or vertically adjusted position of the latter. Vertical a justment of the main slice upon the inner pond sides is by means of a screw 73 on each end of the slice plate, confined against axial movement thereon andthreaded at its lower end in the adjacent inner pond side at the juncture of its divergin front and side portions. In this case eac screw has a fixed circular collar 74, Fig, 5, upon which rests a rearwardly overhanging plate 75 fixed to the main slice plate. A slot 76 in the plate 75 through which the screw 73 passes permits the sidewise adjustment just referred to and the enlarged openings 77 at the ends of the slot allow the screw collar to be re moved at either extreme position for disassembling.

The main slice lip 69 may be of any suitable material and construction permitting variable adjustment at points in its length. This lip is preferably in a single piece uniform in cross-section so as to give a smooth continuous edge and thus avoid the troubles incident to a plural part construction, the joints of which are apt to cause disturbance or ripples in the flow or are apt to collect fibers of pulp. It will be here noted that our invention aims to avoid any tendency to collect fibers or to mar a smooth and uniform passage of stock through the main orifice 16 to the wire. In the preferred construction the lip 69 is an accurately finished plate of non-corrosive metal clamped against the tertical front face of the main slice plate. In the present embodiment the lip is clamped in position by a series of clamping blocks 78. As shown in Figs. 5 and 7, each clamping block comprises a pair of similar clamping elements connected by an integral tie-piece 79. Each clamping element, as shown in Fig. 9, as a third-class lever having a fulcrum at 81 against the main slice plate, pressure'contact at 82 against the lip 69 and is urged into contact with said lip by a compression spring 83 held in position by a suitable adjusting nut 84. The lip has a flange 85 at its top for connection of a series of adjusting rods 86, one of which passes through and is guided by each tie-piece 79 of a clamping block. Each rod 86 is threaded at its upper end in a screw 87 which in turn is threaded in the forwardly turned top end of the main slice plate and is equipped with wings for turning. The threads on the inner and outer peripheries of the screw 87 are of different pitch so that by reason of the differential the rods 86 will be adjusted lengthwise by turning the screw 87 and the latter will be automatically locked in position against accidental turning. This adjustment of the rods 86 for the purpose of adjusting the lip 69 may be quickly and easily made by reason of the fact that the lip is yieldingly held in position by the clamping blocks 78. It should be noted that by reason of the fact that the adjusting rods 86 are located at uniformly spaced intervals throughout the length of the main slice, the lip 69 may be adjusted and set to a fine degree of precision for regulatin the depth of the flow and for varying the epth at any points throughout the width of flow. It should also be noted that the lip 69 is approximately co-extensive with the length of the main slice so that it will function properly at the widest setting of the machine, shown in Figs. 3, 5 and 7. One of the features of our invention in connection with the lip construction and mounting is that the lip may be removed and replaced without disturbing the mounting of the lip holding and adjusting means on the slice. In the preferred embodiment the lip has a uniform cross-section from end to end and the adjusting means such as the rods 86 interfit with this cross-sectional shapepermitting endwise withdrawal of the lip.

In view of the adjustments of the main slice and of its lip 69 and in further view of the sidewise adjustments of the pond sides for deckling in, special provision must be made for maintaining a fluid tight joint at the juncture of these adjustable parts. To this end we have provided joint sealing means which, for convenience, will be referred to as a stop-off for the mainslice. This stop-off assembly is best shown in Figs. 912, inclusive. It will be observed that the bottom rear face of the main slice plate is gradually tapered at 88 from end to end and that the inner side of the inner pond side is likewise gradually tapered at 89 from the bottom to an intermediate point in its height, thus providing a diverging throat leading to the orifice 16 and avoiding sharp corners. In the space between the lip 69 and the front edge of the inner pond side is fitted a stop-0E rubber, designated generally by 91. This rubber has a flat face 92 which fits against the back of the main slice plate, faces 93 which fit against the inclined and bottom edge of said plate, and a fiat face 94 which fits against the back of the lip 69, thus making sealing contact with these faces. The stop-off rubber also overlaps from top to bottom and seats against the inner pond sideand for this purpose is located in a groove 95 in the outer side of the inner pond side, this groove extending into the front extension 48 thereof. Said stop-ofl rubber is pressed inwardly against the wall 96 of the pond side groove by a stop-off plate, designated generally by 97, which overlaps and bears against the surface 98 of the stopoif rubber. This stop-off plate has a rubber facing 99 which seats against the surface 98 and the outer wall of the inner pond side. Said stop-olf plate has a top edge 101 inclined downwardly and forwardly and terminating in a horizontal edge 102 against which the lower edge of the lip 69 seats when in its lowest position. Coiled compression springs 103 on bolts 104 fixed to the inner pond side act against a presser plate 105 for yieldingly urging the stop-off plate 97 against the inner pond side and against the surface 98 of the stop-off rubber; The cutaway in the lower outside corner of the stop-off lever' for the,

surface 98 provides an inclined surface 106 which seats on the inclined top edge 101 of the stop-oif plate, so that by pressing the stopoff plate forwardly the stop-off rubber 91 will be urged upwardly into sealing contact with the slice. When the slice is elevated the stopoif plate may be slid forwardly by reason of the slots 107 for the bolts 104:, thus sliding the stop-off rubber upwardly and keeping it in sealing contact with the slice parts, as shown. in Fig. 11. It will be here observed that the stop-off plate seats at its bottom edge against the apron cloth and also aids in sealing the joint between the main slice and the inner pond side. As shown in Figs. 5 and 11, the under edge of the pond side extension 48 is cut away at 108 for passage of the stopoff plate. It will be here noted that in ad justing the pond sides for deckling in, the stop-off rubbers 91-will be confined and held in position between the pond sides and the stop-off plates and that when adjusting the main slice the stop-off plate. will be shifted, in this case by hand, to accommodate the adjustment and properly set the stop-off rubber in its sealing position.

The deckle strap 109 at each side of the machine runs over a deckle pulley 111 suitably journaled on a bracket 112 which in turn is fixed to and supported on the top flange 43 of the outer pond side 31. The deckle straps are thus spaced forward from the main slice so as not to interfere with adjustments. The stock is guided at the gap between the main slice and the deckle straps by what we have, for convenience, termed slice-to-deckle-strap dams, designated generally by 113.--- Each dam comprises a fiat rubber faced plate which overreaches its deckle strap at the inner side thereof, as plainly shown in Figs. 1 and '3, and at the opposite end terminates in proximity to the slice lip 69, as shown plainly in Fig. 9, the upper corner being cut away for clearance of the adjacent clamping block. This dam. is fixed to the flat end 114: of a bracket having a cylindrical part 115 clamped in a bracket part 116 which in turn has a horizontal cylindrical part 117 at right angles to the part 115 clamped in the split end part 118 of the inner pond side extension 48. By reason of this support the dam 113 may be accurately adjusted and positioned with respect to the wire, the deckle strap and the s ice.

It will be here noted that in the lowestv point of the slice lip 69, shown in Fi 9, the forward end of the stop-01f plate ridges the space between the slice'and the dam 113 and overlaps the latter. When the slice is raised, as shown in Fig. 11, the stop-off plate in its forwardly moved position also serves to bridge this space, the deflection to the flow leaving the orifice being indicated approximately by the dotted line 119.

In changing the width of deckle it will be noted that by turning the nuts 38 the inner and outer pond sides at each side of the machine will be moved as a unit inwardly or outwardly, as the case may be. l/Vith each such unit also moves the deckle strap and the slice-to-deckle-strap dam. In making this adjustment it will be manifest that the clamping

nuts

84, 49 and 73 will be loosened as well as those on the inner slice. Figures 3 and 4 show the parts in the extreme outer (and, inner positions, respectively, that is, for the widest and narrowest widths of deckle.

Considering now the slice adjustments, it will be observed that in the position shown in Figs. 1 and 8 both slices are in the lowest and most retracted position withrespect to the breast roll. From this position both slices may be moved forwardly as a unit by turning the nuts 54: to move the inner pond sides and all parts carried thereby forwardly upon and with respect to the outer pond sides, the extreme forward position being shown in Fig. 2. In this position the inside slice has also been independently adjusted forwardly so as to reduce the size of the compartment between the slices. Either slice may also be vertically adjusted independently of the other and, furthermore, the slice lip may be vertically adjusted independently of the main slice proper by adjusting means above described. These adjustments can, of course, be made while the machine is in operation, thus enabling quick observation and correction of conditions. It will be here noted that the construction affords a wide range of adjustment of parts, the position of which determines to a large degree the characteristics of the resultant paper. It will also be noted that in adjusting the main slice forwardly it may be so positioned that filtration through the wire occurs-before the stock passes through the orifice 16. This preliminary filtration may, of course, be varied by adjustment of the main slice and its lip; the degree of such filtration will also depend on the static head of the stock above the wire between the end of the apron and the slice lip. This range of adjustment enables the operators to produce any desired effect by control andregulation of the flow. These adjustments are of great practical advantage and especially so for the reason that they may be made while the machine is in operation.

It is believed that the foregoing conveys a clear understanding of the objects prefaced above and while we have illustrated but a single working embodiment it should be understood that many changes might be made in the construction and arrangement of parts without departing from the spirit and scope of the invention as expressed in the appended claims.

We claim:

1. In a paper making machine, a headbox having pond sides adjustable sidewise and lengthwise with respect to the wire, and a slice carried by the pond sides.

2. In a paper making machine the combination with the breast roll and the wire, of a headbox having a main and an inside slice, and means for adjusting both slices lengthwise with respect to the wire.

3. In a paper making machine a slice,- a lip for the slice defining the top of the orifice through which the stock flows and being slid able upon and with respect to the slice for varying thedepth of said orifice, means for vertically adjusting the slice, and means for adjusting the slice lengthwise with respect to the wire.

.4. In a paper making machine, aslice, a lip slidable on the ,slice, clamping blocks yieldingly urging the lip a ainst the slice, and means for vertically a justing the lip upon and with respect to the slice.

5'. In a paper making machine, a slice, a lip slidable on the slice, and means for adjusting the lip upon and with respect to the slice and for flexing the lip to vary the top of the orifice defined thereby, and means for clamping the lip to the slice in any adjusted position onthe lip.

6. In a paper making machine, a slice equipped with a slidable flexible lip, means for adjusting the lip upon and with respect to the slice and for flexing the lip, and means for clamping the lip to the slice in any adjusted position of the lip.

7 In a paper making machine, a slice having a flat front face, a flexible lip seated against said'front face and depending beneath the slice so that the lower edge of the lip defines the top of the orifice through which the stock flows, the lip having a forwardly projecting top flange, adjusting rods connected to said flange at spaced points for vertically adjusting the lipupon and with respect to the slice, and clamping means engaging the lip beneath its flange for holding it against the slice.

8. In a paper making machine, the combination of sidewise adjustable pond sides, a

. slice carried by said pond sides, and stop-01f means providing a seal between the slice and the pond sides. f

9. In a paper making machine, the combination of sidewise adjustable pond sides, a slice mounted on said pond sides, a vertically adjustable lip on the slice, and stop-off means providing a seal between the pond sides, the slice and the lip.

10. In a aper making machine, the combination of a slice, a vertically adjustable lip therefor, pond sides, and a stop-ofi' rubber at each end of the slice providing a seal between the adjacent pond side, the slice and the lip.

11. In a paper making machine, a vertically adjustable slice, a vertical flexible and adjustable lip on the slice, and stop-oft means acting between the lip and the slice at each end of the orifice defined by the lip.

12.; Ina paper making machine, a slice equipped with a vertically adjustable lip, sidewise adjustable pond sides, and stop-ofl' means acting between the pond sides, the

slice and the lip.

13. In a paper making machine, a headbox having a stationary pond side, an inner and 1 an outer pond side mounted for sidewise adjustment on the stationary pond side, and a slice attached to one of said adjustable pond sides.

14. In a paper making machine, a headbox having a stationary pond side, an inner and an outer pond side mounted for sidewise adjustment on the stationary pond side, a slice attached to one of said ad ustable pond sides,

and a deckle strap support mounted on one of said adjustable pond sides.

15. In a paper makin machine, a headbox having a stationary pon side, an inner and an outer pond side mounted for sidewise adjustment as a unit upon and with respect to adjustable lip, deckle straps, slice-to-deckle strap dams, and stop-0H means bridging the space between said lip and the dams.

18. In a paper making machine, a slice having an adjustable lip, a plurality of lipadjusting rods, and an adjusting screw for each rod having inner and outer threads of different pitch.

19. In a paper making machine, a vertically adjustable slice, and stop-0E means having an inclined top edge cooperating with the slice and shiftable lengthwise of the wire to maintain sealing contact with the slice at different elevations thereof.

20. In a paper making machine, a pond side, a vertically adjustable slice, a lip vertically adjustable on the slice, a stop-ofl rubber co-acting between the pond side, the slice and the lip.

21. In a paper making machine, a pond side, a vertically adjustable slice, a lip vertically adjustable on the slice, a stop-0E rubber co-acting between the pond side, the slice and the lip, and a stop-ofi' plate co-acting between the pond side and the stop-ofl' rubber.

22. In a paper making machine, the combination set forth in claim 21 in which the stop-off rubber is shiftable vertically and the stop-ofi plate is yieldingly urged against one side of the pond side and has an inclined edge bearing against the stop-ofi' plate and maintained incontact therewith by shifting the plate lengthwise.

23. In a paper making machine, a vertically adjustable slice having associated therewith at each end a forwardly and downwardly inclined surface, and means adjustable for changing the width of deckle including stop-oflt' plates havin sealing contactwith said inclined su'r aces.

24. In a paper making machine, a headbox having a vertically adjustable slice provided with a flexible, independently adjustable lip, and means independent of the slice for Varying the width of the orifice through which the stock flows beneath the slice.

25. In a paper making machine, a main slice having an adjustable lower edge to change the shape and depth of the oruice, said slice being adjustable lengthwise of the machine while it is in operation.

26. In a paper making machine, a main and an inside slice, the main slice, having an adjustable lower edge to change the shape and depth of the orifice, the inside slice being adjustable lengthwise of the machine while it is in operation.

27. In a paper making machine, a main and an inside slice, the main slice having an adjustable lower edge to change the shape and depth of the orifice, both slices being adjustable lengthwise of the machine while it is in operation.

28. A paper making machine having a main slice, an inside slice, and means for adjusting said slices as a unit lengthwise with respect to the wire.

29. A paper making machine having a main slice, an inside slice, means for adjusting said slices as a unit lengthwise with respect to the wire, and means for independent- 1y adjusting the inside slice in the same direction.

30. A paper making machine having a main slice, an inside slice, and means for adjusting the inside slice lengthwise with respect to the wire.

31. A paper making machine having a head box provided with laterally adjustable pond sides, a main slice and an inside slice interposed between and mounted on said pond sides, and means for adjusting the slices lengthwise with respect to the wire.

32. In a paper making machine, a head box having a slice for regulating the flow of stock, means for adjusting the slice lengthwise with respect to the wire, a lip mounted for vertical adjustment on the slice and de fining the top of the orifice through which the stock flows, and means for vertically adjusting the lip upon and withrespect to the slice.

33. A paper making machine having laterally adjustable pond sides, a main slice and an inside slice interposed between the pond sides, means for verticallyv adjusting each slice for regulating the. depth of the orifice through which the stock flows, means for adjusting the mainslice lengthwise with respect to the wire, and means for adjusting the inside slice in the same direction.

34:. .A. paper making machine having main slice and an inside slice each vertically adjustable and also adjustable lengthwise with respect to the wire, whereby to vary the head of stock between the slices with respect to the head behind the inside slice and to also vary the base area of the head between the slices and'to vary the position of the said base area with respect to the wire.

35. A paper making machine having a main slice and inside slice, means for regulating the flow of stock beneath the inside slice, means for regulating the flow of stock beneath the main slice, and means for varying the base area of the head of stock between the slices.

36. A paper making machine having a head box equipped with a main slice and an inside slice, and means for adjusting both slices to vary the head of the stock between the slices and to also vary the base area of said head with relation to the wire.

37. A paper making machine having a main slice and an inside slice, and means for adjusting said slices to vary the distance between them and the depth of the head between them, to vary the depth of said head with respect to the head of stock in the pond behind the inside slice, and also to vary the position of the base area of the head between the slices with relation to the wire.

38. A paper making machine having a main slice and an inside slice, means for vertically adjusting each slice, means for adjusting each slice lengthwise with respect to the wire, and a vertically adjustable lip on the main slice.

39. A paper making machine having laterally adjustable pond sides, a main slice and an inside slice interposed between and mounted on the pond sides, means for adjusting each slice vertically, means for adj usting each slice lengthwise with respect to the wire, a lip on the main slice defining the topof the orifice through which the stock flows, and means for vertically adjusting the lip with respect to its slice.

40. A paper making machine having a slice, a lip yieldingly urged against an upright wall of the slice with capacity for vertical adjustment thereon, and means for vertically adjusting the slice at spaced points in its length. a

41. In a paper making machine, a slice having an adjustable lip provided with a flange substantially coextensive with its length, and means connected to said flange for adjusting the lip upon and with respect to the slice.

42. In a paper making machine, a slice 4 having an adjustable lip provided with a flange substantially coextensive with its length, and a plurality of adjusting. rods mounted on the slice in laterally spaced relation, each having connection .with the flange of the lip and adapted for Vertical adjustment with respect to the slice.

43. In a paper making machine, a slice having an adjustable lip provided with a flange substantially coextensive with its length, means connected to said flange for adjusting the lip upon and with respect to the slice, and means yieldingly urging the lip into contact with the slice.

44. In a paper making machine, a slice, a lip, means for vertically adjusting the lip upon and with respect to the slice, and means permitting endwise withdrawal of the lip from the slice and clamping means.

45. In a paper making machine, a main slice, a lip slidable on the slice, means yieldingly urging the lip against the slice, and means for adjusting the lip upon and with respect to the slice for varying the orifice through which the stock flows.

46. In a paper making machine a slice equipped with a series of adjusting rods and with a lip adapted to be vertically adjusted by said rods, the connection between the lip and rodsv permitting endwise withdrawal of the. lip from the rods.

47. A paper making machine having a main slice, a flexible 11p, means for adjusting the lip with respect to the slice for varying the .orificethrough which the stock flows, the lip being removable endwise from the slice and said adjusting means.

48. In a paper making machine, a main slice having a flat front face, a flexible lip having a flat rear face seated against said front face of the slice and adjustable upon the slice in the plane of said face, means for vertically adjusting the slice at spaced points in its length, and means yieldingly urging the lip against the slice.

49. In a paper making machine, a main slice having a fiat front face, a flexible lip having a fiat rear face seated against said front face of the slice and adjustable upon the slice in the plane of said face, means for vertically adjusting the slice at spaced points in its length, and means yieldingly urging the lip against the slice, the lip being adjustable against the pressure of said yielding means and being removable from the slice without disturbing the operative relation of said adj usting means and the slice.

50. In a paper making machine, a main slice, a flexible lip, means yieldingly urging the lip against the slice, and means mounted on the slice adjustably securing the lip in position thereon, the lip being removable from the slice without disturbing the mounting of the adjusting means.

' 51. In a paper making machine, a slice, a flexible lip, and means mounted on the slice adj ustably securing the lip in position thereon and permitting adjustment of the lip at spaced points in its length, the lip having a uniform cross-section substantially from end to end, and said adjusting means have an interfitting connection with the lip permitting endwise withdrawal of the lip.

52. In a paper making machine, a slice plate having a lateral flange at its upper end, a lip slidable against the face of the slice plate 7 at the side common to said flange, a series of adjusting rods mounted on said flange and connected at their lower ends to the lip, and means mounted on the face of the slice plate for yieldingly urging the lip against said front face of the plate.

' 53. In a paper making machine, a slice, a lip, adjusting rods connected with the lip at spaced points in its length for adjusting it vertically on the slice, and means whereby the rods serve to yieldingly hold the lip against the slice. 1

54. In a paper making machine, a slice, a lip adapted to seat against the slice for adjustment vertically thereon, a series of adj usting rods connected to the lip for adjusting it, and spring-pressed means acting against each adjusting rod for yieldingly urglng the lip against the slice.

55. In a paper making machine, a slice, a lip for the slice, a series of adjusting rods for vertically adjusting the lip on the slice, a part straddling each rod and slidable on bolts fixed to the plate, a coiled spring on each bolt for urging said part against the rod, and a nut on each bolt for varying the tension of each spring, the spring tension acting through said part and the rod for urging the lip against the slice.

ALONZO ALDRICH. EARL E. BERRY.