US1619168A - Paper-making machine - Google Patents

Description

M h l 1927,.

arc c. W. VALENTINE PAPER MAKING MACHINE Filed Jan. 22. 1926 2 Sheets-Sheerl l 1 l March 927 c. w. VALENTINE PAPER MAKING MACHINE Filed Jan. 22. 1926 2 Sheets-Sheet 2 7 Mr 2 0 M f W I 0 n o o o on 4. 4 2 3 w oo M 8 2 pl: w u n g o o Inu o len l L n Il I|||| I n o o DE o 1an H o n M n s T 2 m. rJ/ a0 4 3 0 2/0 4 2. n 4 5 1i f h n -1f fr c II m 3 M, -h H 9 M 4 2 ,Patented Mar. 1, 1927.

UNITED STATES PATENTI OFFICE.

CHARLES W. YALENTINE, OF WATERTOWN, NEW YORK, ASSIGNOR TO THE BAGLEY AND SEWALL COMPANY, OF WATERTOWN, NEW YORK, A CORPORATION OF NEW YORK.

PAPER-MAKING MACHINE.

Application led January 22, 1926. Serial No. 82,869.

This invention relates to certain improvements in Fourdrinier paper making machines, and especially to the'slice or that part of the machine which controls the supply of pulp to the making wire.

In making paper on a Fourdrinier machine, the pulp or stock is delivered from the head box to the wire under the slice. To

-secure the formation of a desirable sheet or web of paper, it is necessary that the web or sheet be of uniform thickness across its entire width without weak spots. The obtaining of asheet or web of uniform thickness requires the lower edge of the slice to be parallel with the member beneath it, so

that the opening between the slice and the member cooperating therewith will be ofthe same height at all points across the machine.

Where 'the slice Icooperates with a breast roll over which the wire runs, or, as 1s more "usually the case, with an apron board, it is difficult to secure this uniformity owlng to deflections or distortions either in the slice or in the member with which it cooperates, particularly with the wide machines such as are now used. Furthermore, it may be desirable under some circumstances to effect an adjustment of part of the slice relatively to the remainder.

Itis the especial object of the invention to provide' a slice having what may be termed .a controller plate or bar whichis so constructed and of such flexibility that the -operator may very quickly and readily adjust this plate so as to bring it into alignment with the member with which it cooperates. The plate and adjusting vmechanism therefore being so designed and arranged that by a simple, adjustment the operator can tell by the feel whetherv the parts are aligned.

A further object of the invention is to provide such a construction in which, after the parts have been ali ne'd, the plate may be adjusted in its entirety to and from the member with which it cooperates to provide .the required opening between the plate and the member, and so that, if desired, any part of the plate may bev adjusted relatively to the member.

A further object of the invention is to provide an improved controller plate or bar of the required flexibility for effecting this delicate aligning adjustment, and l a bar which may be so united or joined to-the slice proper as to produce a smooth even surface under the slice and provide a free and clear passage for the stock as it passes on to the wire.

A further object of the invention is to combine such an improved slice with an improved apron board which may be quickly and easily aligned with the breast roll with which 1t cooperates so that the flexible apron board may be easily and quickly aligned with the breast roll.

With these and other objects not specifically referred to,l the invention consists in certain novel parts, arrangements and combinatlons which will be described in connection withjthe accompanying drawings and the novel features pointed out in the claims hereunto annexed.

In these drawings,- 4

Figure 1 is a sectionalside elevation of the improved slice as emplo ed with an apron board and the usual hea box;

Figure 2 is a broken 'face view of the construction shown in Fig. 1;

Figure 3 isv a detail sectional view, the section being taken on line 3-.3'of Fig. 1;

Figure 4 isa detail sectional view of the -improved slice bar, the view .being taken at one side of the section of'Fig. 1, and

Figure 5 is a perspective broken view of the improved bar.

Fig 6 is a detail sectional view of a modified slice bar.

Referring now to these drawings, the breast roll only of a Fourdrinier machine is shown. It will not be necessary to illustrate the rest of such a machine as these machines are well known in the paper making art. This breast roll is marked l and the making wire 2 passes over thisbreast roll.

The pulp or stock is, in the particular construction shown, delivered from a head box 3, the sides 4, 5 of which are shown, and the pulp is delivered onto the making wire from this head box under a slice, indicated generally by the numeral 6. This slice 6, in

the particular construction illustrated, cooperates with an apron board 7, between which and the lower edge of the slice the pulp or stock is delivered to the wire, the

apron board extending, as shown, over the wire and the breast roll.

The main slice 6 may be of any usual or desired construction. In the particular construction illustrated, it includes a plate fifi 8 which extends across the headbox and is supported :from a pair of slides, marked 9, 10, one of which is shown, see Fig. 3, which are in turn supported from a pair of screw rods 11, 12 carrying gears 13 mounted in housings 14 sup rted on the sides 4, 5 of the head box. 'lliiese gears 13 are in mesh at each end with a worm shaft 15 extending across the machine, this shaft being operated by hand wheels 16, 17 from either side of the machine. By means of these hand" wheels the slice as a whole may be raised or lowered to provide the desired opening between the slice and the cooperating apron board.

The slice may be mounted in an suitable manner so that this may be effecte In the particular construction shown, the slides9, 10 are arranged outside the sides 4, 5, and are formed Wlth an extension 18 which slides in an opening 19 cut in the sides of the box. Secured to these slides, by bolts 20, are guide bars 21 having a flange 22 which slides in a way 23 in a bar 24 secured to the inner sides of the box, it being understood that this construction is duplicated on each side of the head box. The slice plate 8 is secured to these bars 21 in any suitable manner, as by screws 25. Supported from the slice plate 8 is a plate 26 extending across the machine, this plate being provided with a ledge or flange 27, hereinafter referred to. Supported on and above this plate are stiffening trames 28 for stiffening the slice plate 8, the

plate being secured t0 these frames in any suitable manner, as by screws 29, Fig. 3. Depending from the plate 26 are frames 30 to which are secured flange frames 31, hereinafter referred to, the slice plate 8, in the best constructions, being also secured to the frames 30, 31, as by rivets 32.

In accordance with the invention, this slice is provided with what may be termed a. controller plate or bar which is united i with 4the lower edge of the slice plate and extends forwardly beyond the same, this controller plate regulating the height of the opening through which the pulp or stock is fed to the Wire. This controller plate is ot improved and novel construction which gives to the plate such a degree of flexibility that it may be brought into alignment with the cooperating member, in the present instance the apron hoard, and this alignment may be effected very quickly by the operator, the flexibility of the plate being such that a bare touch by the operator on the plate adjusting mechanism will tell him that the plate is aligned. The particular construction by which this flexibility of the plate may be obtained may be varied, but in the preferred form the plate is formed so that it is thinner at certain points than it is at others. the thin portions of the plate being arranged so as to extend both longitudinally and widthwise of the plate. In the particular construction shown this plate is indicated by the numeral 33 and is shown as provided with a channel 34 which extends Widthwise of the plate, leaving a very thin portion 35 about centrally thereof. The front offthe plate or that side nearest the Wire is also provided with transverse chan-V nels or grooves 36 which extend at an angle to the channel 34, these channels leaving very thin portions 37. lVith this construction of plate, it will be seen that a great flex ibility is obtained and a very accurate alignment. of the plate with respect to the cooperating member below it may be obtained. It will also be observed that at its rear edge the plate is curved upwardly, as indicated at 38.

This plate is secured to the slice 6 in any suitable manner. In the particular corn struction shown, there is provided an angle iron 39, see Fig. 4, and the plate is secured to one leg of this angle iron by screws 40, the other leg of this angle iron, see Fig. 1, being secured to the frame 31 and the plate 8, by means of screws 41. The inner edge, referring again to Fig. 4, of the plate 8 is Shown bevelled, as indicated at 42, this bevelling corresponding with the curve 38 of the bar, so that a smooth surface is provided for the slice and the controller plate, and a free flow of stock assured.

Means are provided for adjusting this bar to bring it into alignment with theplate. While various constructions may be employed for this, in the particular construction shoWn, these adjusting means operate on the front edge of the bar and include adjusting rods 43 Which are operated by hand wheels 44, these adjusting mechanisms being provided at suitable intervals across the bar. The particular arrangement of these adjusting rods may be somewhat varied, but in the particular construction shown they are screwed into the bar 33, passing through lock nuts 1.15 to which they are threaded as at 46. At the other end the rods pass through sleeves 47 provided with a flange 48 which bears against the under side of the flange 27 of the plate 26, before referred to. The rods are provided With threaded ends 49 and are threaded through the sleeves. The hand wheels 44 are provided with hubs 50 which are splined to the sleeves, as indicated at 51, and a lock nut 52 is provided for locking the parts in adjusted position. It will be seen by unloosening the lock nut 52 that the hand wheel may be rotated, the rotation of which raises or lowers the rods 43 and thus raises and lowers the bar or plate 33.

It Will be seen that the channeling 35, 36 makes the bar so flexible that very little regulation of the wheel 44 is necessary for aligning the plate with the member beneath it, and this adjust-ind is so delicate that the operator can feel w en -the parts come in contact. In use, the operator aligns the plate against the apron board so that any deforn'iation, either of the plate or of the board, is taken care of, as well as any deflection in either of these parts, and a perfect alignment or parallehng of the members is effected. After this is done, the' lock nut 52 is set Au and then the plate, as a uhit, may be liigted by means o wheels 16, 17 to provide the required openinK4 between the plate and the board.

It will be observed that with the plate described the channels in effect produce a sectional plate, the narrow parts 37 being of such flexibility as to allow the parts of the plate between them to be independently adjusted. As, however, the channels do not extend through the plate, a plate having a continuous smooth undersurface is provided, which in no way` impedes the even ilow of the stock therethrough, and this plate may be adjusted, as a unit, to and from the apron board.

Vhile the invention has been designed and works well in practice with a solid or inflexible apron, under some circumstances it may be desirable to utilize an apron board having a flexible edge which may be manipulated widthwise of the machine to bring the edge into alignment with the wire'or breast roll over which it extends, as this will assist in obtaining an even opening between the board and the slice through which the pulp is ydelivered to the wire, and an apron board of this character is shown and will be briefly described.

As illustrated, this board includes a rigid portion 55 which includes a frame 56 suitably supported from standards 57. In front of the rigid part 55 is a flexible extension in the form of a number of plates 58, supported on bracket arms 59. These plates are secured together and to the rigid part of the board 55 by means of a thin flexible metal sheet or plate which extends at its front end beyond the plates 58 out over the wire and in close contact therewith, as indicated at 61. Bracket arms 59 are preferably integral with the plates, and the lower ends of these arms rest on extensions 62 of the frame 56. These arms 59 are formed so that they are free to rock on the extensions 62 and are, for this purpose, formed, as shown, with a rounded end 63. The arms are prevented from rocking by means of screws 64 having an operating handle 65. These screws pass through openings 66 in the extensions 62, these openings being large enough to permit a rocking movement of the screws as the arms rock, and are secured in the ends of the arms, the lock-up being effected by lock nuts 67. Adjustable stops 68 are provided extending through theA the handl frame 56 and arrangedto bear against the lower ends of the arms. These stops may be micrometer stops and set to provide the desired gap between the end of the flexible plate 60 and the wire. With these, by loosening the lock nuts 67, the plate will automatically align itself with the wire. The necessary gap, between the wire and the end of the plate may then be obtained by adjusting the stops 68, and the alignment of the parts across the breast roll is obtained.

The bar shown in Figs. 1 to 5 is a rolled bar with the channeling cut in it.. If desired, a cast metal bar such as shown in Fig. 6 may be used,'as such a bar does not need an angle iron for securing it to the slice. This bar is marked 70 and is secured with a butt joint 72 to the slice by screw bolts 71.

While the invention has been shown and described in its preferred form, it will be understood that certain changes and variatlons may be made in the specific structure shown and described without Ideparting from the invention, and the invention, therefore, is not to be limited only to the specific type of apron board shown.

No claims are made in this application to the adjustable apron board and the means for operating it, such claims having been made in a co-pending application Serial Number 82,900 filed Jan. 22, 1926.

What I claim is: i

1. In a Fourdrinier paper making machine, the combination of the breast roll and the wire, of a slice adjustable. to and from the wire, a controllerbar carried by the lower end of the slice, said bar being of flexible metal and formed with weakened portions at a plurality of points so that it may be flexed with a light pressure both longitudinally and transversely of the wire, and means for flexing the bar.

2. In a Fourdrinier paper making machine, the combination of the breast roll and the wire, of a slice, a controller bar carried by the lower end of the slice, said bar being of fiexible metal and formed with weakened portions at a plurality of' points so that it may be flexed both longitudinally and widthwise of the wire with a light pressure, means for iiexing the bar, and means for adjusting the bar as a unit to and from the wire.

3. In a Fourdrinier paper making machine, the combination of the breast roll and the wire, of a slice, a controlled bar carried by the lower end of the slice., said bar being of flexible metal and formed with weakened portions at a plurality of points so that it may be flexed with light pressure both longitudinally and transversely of the wire, means for flexing the bar, and a flexible apron board cooperating with the bar.

4. In a Fourdrinier paper making malim chine, the combination ofthe breast roll and the wire, of a slice, a flexible controller bar carried by the lower end of the slice and having a weakened portion extending widthwise of the bar, means for flexing the bar at the weakened points widthwise ofthe machine, an apron board having an edge of flexible metal, and means for adjusting the edge to and from the roll.

5. In a Fourdrinier paper making machine, the combination o the. breast roll and the wire, of a slice, a controller bar carried by the lower end of the slice, said bar being kof flexible metal andiprovided with longitudinal and transverse channels to provide thin portions at which the bar may be flexed by light pressure, and means for flexing the bar.

6. In a F ourdrinier paper making machine, the combination of the breast roll and the wire, of a slice, a bar carried by the lower end of the-slice, said bar being of flexible metal, a channel in the bar extending widthwise thereof, and means located in front of the channel for flexing the bar.

7. In a Fourdrinier paper making machine, the combination of the breast roll and thewire, of a slice, a bar carried by the lower end of the slice, said bar being of flexible metal, a channel in the bar extending widthwise thereof, transverse channels in the bar, and means between the transverse channels for flexing the bar.

i 8. A slice bar for Fourdrinier paper making machines comprising a flexible metal plate provided with transverse and longitudinal channeling.

9. A slice bar for Fourdrinier paper mak ing machines comprising a flexible metal plate provided with a channel extending widthwise thereof, of such width and depth as to weaken the plate at the point of channeling to a degree which will permit of easy 10. A slice bar for Fourdrinier paper making machines comprising a flexible metal plate provided with longitudinal channels in its front edge.

11. A slice bar for Fourdrinier paper making machines comprising a flexible metal plate provided with transverse and longitudinal channeling, and a curved inner end.

12. In a Fourdrinier paper making machine, the combination of the breast roll and the wire, of a slice, a controller bar carried by the lower end of the slice, said bar being of flexible metal and provided with longitudinal and transverse channels to provide thin portions at which the bar may be flexed by light pressure, means for flexing the bar, and a flexible apron board cooperating with the bar.

13. ,In a Fourdrinier paper making machine, the combination of the breast roll and the wire, of a slice, a controller bar carried by the lower end of the slice, said bar having a channel extending widthwise thereof to provide a thin portion at which the bar may be flexed by light pressure, and a flexible apron board cooperating with the bar.

14. In a Fourdrinier paper making machine, the combination of the breast roll and the wire, of a slice, a `controller bar carried by the lower end of the slice, said bar having a channel extending widthwise of the bar, and channels transverse thereto to provide thinplaces at which the bar may be flexed by light pressure, and a flexible apron board cooperating with the bar.

In testimony whereof, I have hereunto set my hand.

CHARLES W. VALENTINE.

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