US1818681A - Paper making machine - Google Patents

Description

Aug, 11, 1931. BERRY 1,818,681

PAPER MAKING MACHINE Filed Aug. 20, 1928 v .2 Sheets-Sheet l 1931. E. E. BERRY 1,818,681

PAPER MAKING MACHINE Filed Aug- 20, 1928 2 Sheets-Sheet 2 Patented Aug. 11, 1931 UNITED STATES PATENT OFFICE EARL E.- BERRY, OF BELOI'I, WISCONSIN, ASSIGNOR T BELOIT IRON WORKS, OF BELOIT, WISCONSIN, A CORPORATION OF WISCONSIN PAPER MAKING MACHINE This invention relates to paper making machines of the Fourdrinier type and has more particular reference to the slice or slices and to features in connection therewith. In some respects my invention is an improvement on the paper making machine claimed in the joint application of Alonzo Aldrich and myself, Serial No. 194,304, filed May 26, 1927.

The present invention aims to provide a simplified and improved construction for facilitating the making of changes in the deckle width and at the same time affords a greater range of adjustment of the slice or slices as the case may be and a consequent regulation 'of the stock within a wide range of possibilities and to a fine degree of accu-' racy. The change of deckle widths is made when the machine is at rest but the fine ad-' :0 justments for .controll'ng flow of the stock and deposit of the fibre may be made while the machine is in operation and in such manner as to afford many practical advantages some of which have their foundation :5 in the application above mentioned.

One of the features'of the present invention is the provision of a sectional slice having a single lip which is interchangeable with lips of different lengths corresponding :0 with the slices for difl'erent deckle widths.

This not only insures a continuous and uninterrupted lip edge controlling the final flow of stock to thewire but according to my invention the lip is flexible and means 5 is provided for adjusting the lip on the sec tional slice so as to vary the depth of flow at points along the length of the lip. As a result of these improvements the machine may be set to meet any of the varying re- D quirements incidental to the peculiarities of the machine and the particular conditions at hand in respect to the stock and the physical characteristics of the finished sheet.

I have also aimed to provide a construc- 5 tion which will be thoroughly practical and easy to operate and which will permit the operator to readily make any such adjustments as may be found necessary or expedient to regulate and control the physical 1 characteristics of the finished sheet.

Other objects and attendant advantages will be appreciated by those skilled in this art as the invention becomes better understood by reference to the following description when considered in connection with the accompanying drawings, in which- I Figure 1 is a fragmentary plan view of a ,head box and slices embodying my invention;

Fig. 2 is a side elevation of such parts; Fig. 3 is a front elevation of the main slice removed from the machine; Fig. 4 is a front view of a lip shorter than that shown in Fig. 3;

Fig. 5 is an enlarged vertical section through the slices taken substantially on the line 55 of Fig. 1; and

Fig. 6 is an enlarged horizontal section taken on the line 6-6 of Fig. 2.

In the present illustration of my invention the head box 7 has stationary pond Sides 8 and what is known as a deckle lift consisting of pond sides 9 each pivotally mounted at 11 to permit lifting of the sides and the slices carried thereby when changing the wire and for other purposes. The wire is designated by 12, the breast roll by 13 and table rolls by 14. The apron 15 and the apron board structure 16 may be of any suitable construction. The open space between the bottom of each pond side 9 and the wire is closed by suitable means such as a spring-pressed side extension plate 20. Each pond side 9 is in the form of .a single flat plate connected at the points 11 box and may be fixedly secured in any adjusted position by bolts 23, suitable slots being provided in one orthe other of the connected parts to permit of such adjustment. A tie rod in the form of a pipe 24 clamped at its ends by suitable means to the front end of the pond sides 9 holds them in spaced relation at this end.

The inside slice consists of two slice plates 25 and 26 in overlapping relation bolted to gether in a manner well known in this art and adapted to be lengthened or shortened to take care of different deckle widths. In this case each slice plate is guided at its outer end on a guide bracket 27 which has a top flange 28 seated on the top edge of the adjacent pond side 9 and is adapted to be adjusted lengthwise along the same by means of a nut 29 and bolt 31 the latter of which connects to the pond side. A screw 32 threaded in each slice plate at its outer end rests on the adjacent bracket 27 and is adjustable to raise and lower the inside slice.

The main slice, in addition to its usual functions, is of such construction as to allow setting for different deckle widths. It also has a flexible lip which defines the upper edge of the orifice and is adjustable to regulate and control the flow of stock to. the wire. The present invention meets the problems incidental-to these functions by the provision of a structure thoroughly practical. In the preferred embodiment of my invention the main slice consists either of a single plate for the smallest deckle Width or plural plates or sections for greater deckle widths. As

shown in Figs. 1 and 3 the main slice comprises a central section 33 and end sections 34 each having the same cross-section and disposed in the same transverse plane. The pre- 35 ferred cross-sectional shape shown in Fig. 5 consists of a vertical fiat plate body having a horizontal upper end 35 for stiffening and reenforcing purposes and for providing support for a series of lip adjusting rods which 1 will be presently described. The central and end sections, arranged in abutting relation as shown in Fig. 3, are secured together by removable coupling plates 36 fastened by-countersunk-head screws, or otherwise, to'thesections.

equipped with a guide block 37 rabbetted at 37 to receive .an interfitting guide 38 of a slice-supporting bracket 39 adapted to be clamped to an adjacent pond side 9, as shown in-Fig. 6. The bracket may be of any suitable or preferred construction. In this instance said bracket has a flange 41 seating on the top edge of-the pond side and carries two fixed bolts 42 which extends outwardly through slots 43 in the pond side. A screw 44 connected to each bolt 42 passes through an outstanding rug 45 on the pond side and is adapted to be adjusted lengthwise upon and with respect thereto by means of the nuts 46. By tightening the nuts 47 onthe bolts 42 the bracket 39 will be clamped to the pond side. A screw 48 threaded in each outer section 34 rests on the top of' the bracket 39 and is adj ustable to raise and lower the main slice. In the event that a narrower deckle width is de- Each end section at its outer end is.

sired either one or both of the end sections 34 will be removed in which case the depth regulating screw or screws 48 will be transposed to a threaded opening 49 in the center slice section and guide bars 37 will be attached to the outer end or ends of this slice section. In order to eliminate breaks or interruptions in the lower edge of the slice and to provide for the most effective adjustment of this edge my invention contemplates the use of a single lip corresponding in length with the slice and interchangeable with lips of other lengths corresponding with the different slice lengths. This lip 51, preferably mounted so as to seat against the front face of the slice and be adjustable in the plane of said face, is adapted to be so adjusted by means of a series of adjusting rods 52 as claimed in the Aldrich and Berry application above mentioned. In the present case the lip has a flange 53 from end to end adapted to be received in a notch 54 in the lower end of each adjusting rod whereby each rod is connecstible to the lip at any point in its length and may be moved vertically for adjusting the lip. A springpressed plate 55 straddles each rod just above the lip and serves to urge the latter yieldingly against the slice, holding it seated thereon. Each plate 55 is supported at its ends on bolts 56 attached to the slice plate. Each bolt 56 carries a coiled spring 57 backed against a nut which is adjustable for varying the pressure of the lip against the slice. As shown in Fig. 3 the center slice section is equipped with a series of lip adjusting rods 52, while each end section 34 has only a single lip adjusting rod. This arrangement, however, is not essential to all applications of my invention. The upper end of each adjusting rod 52 is suitably connected to its slice section for vertical adjustment thereon.

In this instance the rod is threaded into an elongated nut 58 which in turn is threaded into the slice part 35, the internal and external threads on the nut 58 being of different pitch so that upon turning said nut the rod will be raised or lowered as the case may be. It will be observed that the lip provides a single, continuous, uninterrupted edge for the sectional slice and that this edge may be so positioned or flexed by adjustment of the rods 52 as to regulate to a fine degree of accuracy the depth and shape of the orifice through which the stock flows. This construction also avoids collecting or bunching of the fibers in grooves or joints common to previous constructions. It will be observed that the lip is of such cross-sectional shape and so mounted in connection with, the adjusting rods that it may be withdrawn lengthwise from its position on the slice when the latter is removed. When removing the main slice the tension of the springs 37 will be released by backing ofi the ins nuts on the ends of the bolts 56 to facilitate this operation. The lip 51 shown in Fig. 3, is interchangeable with any other lip of the same cross-section, a shorter length of lip being contemplated for a slice of shorter 34 are removed alip such as 59 shown in Fig. 4, corresponding in length with the center section 33 may be substituted for the lip 51. In the same way another lip of suitable length may be substituted in the event that the slice is composed of only two sections or of sections of a different length from those shown.

When changing the deckle width it is preferred that the slice-supporting brackets 39 be removed, together with the slice, as an entirety, whereupon the tension of the springs 57 may be released and the lip may be withdrawn len thwise from its connection with the adjusting rods. After the slice has been adjusted to the desired length by the addition or removal of sections the new lip may be substituted. When the pond sides 9 have been adjusted laterally to correspond with the'new deckle width the slice structure may be remounted, as will be obvious.

Adjustment of the inside slice 26 regulates the flow the space between the slices and determines the head of this stock in relation to the head of the pond behind said inside slice. The passing of the stock beneath the inside slice 26 sets up a turbulence between the slices which tends to keep the fibers in uniform suspension and to prevent stagnant pools and Stratification. By adjusting the slices lengthwise *with respect to the wire and by varying the head of the stock between the slice any degree of filtration within the [g capabilities of the machine may be obtained.

In addition to this the final flow of the stock onto the wire may be regulated with the greatest precision. The invention in respect to these adjustments is claimed in the Aldrich and Berry application above mentioned excepting, however, the novel construction herein disclosed. 1 I It is believed that the foregoing conveys a clear understanding of my invention and while I have illustrated but a single embodiment it should be understood that various changesmight be made in the construction and arrangement in various applications without departing from the spirit and scope of the invention as expressed in the appended claims, in which I claim: 1. In a paper making machine, a head box having single plate pond sides each connected :3 together at one end by atie rod and pivotally mounted at the opposite end to provide for deckle lift and being adjustable laterally to take care of changes in deckle widths, an inside slice and a main slice interposed between and mounted on said single side plates, the

length. For example, when the end sections slices being variable in length corresponding with changes of deckle width, and means for adjusting the slices in the direction of travel of the wire.

2. In a paper making machine, a head box, a bracket mounted on each side of the head box for adjustment laterally thereon, a single pond side plate pivotally mounted on each bracket to swing upwardly at its outer end, a tie rod connecting the pond sides at the outer end, an inside slice and a main slice interposed between the said pond sides and adapted to be varied in-length corresponding with difierent deckle widths, brackets mounted on the pond sides and having guides for the slices permitting vertical adjustment thereof, means for so adjusting the slices on the brackets, and means for horizontally adjusting the brackets on the pond sides in the direction of travel of the wire.

3. In a paper making machine, pond sides, a slice interposed between the pond sides, and means adjustably supporting the slice at each end on the adjacent pond side comprising a bracket having a vertical guide for the slice, a guide on the slice at the extreme end thereof having a rabbetted edge at its inner side and adjacent to the slice, the bracket guide being shaped to interfit the slice guide, means for vertically adjusting the slice on said guide, and means for horizontally adjusting the bracket on the pond side in the direction of travel of the wire.

4. In a paper making machine, pond sides,

a main slice interposed between the pond sides and equipped at each end on its forward side with a guide member extending substantially from top to bottom of the slice, a bracket adapted to be clamped to eachpond side at the inner side thereof in front of the slice, the 7.19 bracket having a guide part interfitting with the adjacent guide on the slice whereby the slice may be vertically adjusted upon and with respect to the brackets and may be moved horizontally in the direction of travel of the wire by corresponding movement of the brackets,' each bracket having vertically spaced, bolts extending outwardly through horizontal openings in the adjacent pond sides, and ad usting screws mounted on each bolt at the outer side of the adjacent pond side and having connection with said pond side whereby. to adjust its bracket horizontally, a nut on each bolt for clamping its bracket to the pond side, and means for vertically adjusting the slice ,with respect to the brackets.

' 5. In a paper making machine, the structure set forth in claim 4, in which each bracket has an outstanding flange at its up per end seating on the top edge of the adj acent pond side and the slice adjusting means is in the form of a screw threaded in each end of the slice and having contact against the top of the adjacent bracket.

a as,

adjusting the slice with respect to the brack- 6. In a paper making machine, the structure set forth in claim 4, in which the main slice is of sectional construction and is equipped with a single lip extending from pond side to pond side, the slice and the bracke t(s1 being removableas a unit from the pond s1 es.

7. In a paper making machine, pond sides, a sectional slice interposed between the pond sides, a bracket adapted to be clamped against the inner side of each pond side and to be moved horizontally thereon in the direction of travel of the wire, means for guiding each end of the slice on the adjacent bracket with capacity for vertical movement thereon and to move horizontally with the bracket, a single lip for the slice extending from pond side to pond side and interchangeable with a ,lip corresponding in length with the slice when the length of the latter'is changed to vary the deckle width, means for vertically ets, means for vertically moving the lip with respect to the slice, and means for horizontally adjusting the brackets.

- 8. In a paper making machine, the structure set forthin claim 7, in which the slice, its lip, and the brackets are removable as a unit from the pond sides. 7

9. In a paper making machine, pond sides adjustable for changes in deckle widths, a sectional slice; strubture interposed between the pond sides, means whereby said sectional slice structure may be adjusted to conform with the deckle width, a single, flexible lip for the sectional slice structure providing a continuous, uninterrupt ed edge from end to end thereof mounted for vertical adjustment upon and with respect to said sectional slice structure, means on the sectional slice structure having detachable connection with the lip for vertically adjusting the latter at points spaced longitudinally thereof, and said lip being interchangeable with a similar single lip corresponding in length with the slice structure when the length of the. latter is changed to vary the deckle width.

10. In a paper making machine, pond sides adjustable for changes in deckle widths, a sectional slice structure -having one or more sections removable to conform with changes in deckle widths, and lips for the slice structure respectively of lengths corresponding to the deckle widths of said slice structure and adapted to be interchangeably mounted on" the slice structure, a single lip being used for each deckle width having a continuous, un-

interrupted lower edge from end to end of I the respective deckle width of the slice structure; and means on the slice structure shaped for detachable connection with the respective lip-for vertically adjusting the lip upon and structure composed of a center section and movable end sections, and flexible lips for the slice structure adapted to be interchangeably mounted thereon, one lip for the length of the center section and another lip for the combined length of said center section and said end sections and each having a continuous, uninterrupted lower edge from end to end of the respective deckle width of the slice structure, and means on the slice structure for yieldingly urging the respective lip against the slice structure and permitting vertical adjustment of the lipupon and with respect to the slice structure.

In witnessof the foregoing I alfix my sig-

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