US1968028A

US1968028A - Slice for paper making machines

Info

Publication number: US1968028A
Application number: US673196A
Authority: US
Inventors: William B Clements
Original assignee: BRYANT PAPER Co
Current assignee: BRYANT PAPER Co
Priority date: 1933-05-27
Filing date: 1933-05-27
Publication date: 1934-07-31
Anticipated expiration: 1951-07-31

Description

July 31, 1934. w B EMENT$ 1,968,028

SLICE FOR PAPER MAKING MACHINES 3 Sheets-Sheet 1 Filed May 27, 1953 I Z 5 6 4 INVENTOR VOW/0m 6. flame/ifs I M i July 31, 1934. w. B. CLEMENTS 1,968,028

9 smca FOR PAPER MAKING MACHINES Filed May 27, 1933 3 Sheets-Sheet 2 J Z Z5 J J JJ Q July 31, 1934. w. B. CLEMENTS 1,968,028

SLICE FOR PAPER MAKING MACHINES Filed May 27, 1933 s Sheetg-Shegt s' t v NQ Patented July 31, 1934 UNITED STATES SLICE FOR PAPER MAKING MACHINES William B. Clements, Kalamazoo, Mich neither to Bryant Paper Company, Kalamanoo, Mich.

Application May 27, 1933, Serial No. 873,196

14 Claims.

The objects of the invention are:

- First, to provide an easily and completely adjustable slice m paper making machines of the Fourdrinier type in which there is a. head box and 3 wire for formation of the paper.

Second, to provide such a slice that y be easily adjusted during operation of the machine.

Third, to provide such a slice in which small fibers oi" the paper stock do not collect as the stock it) flows to the wire, thus eliminating the formation of ripples and lumps in the completed sheet of paper.

Fourth, to provide such a slice in which it is possible to adjust the flow stock to the wire so 1 that it is even at all times and eliminates ripples or unevenness in the final sheet caused by eddies as the stock flows onto the wire.

Fifth, to provide such a slice in which a roll with an expandable surface is used in place of a 2 wall, which is the or practice inslice construction.

Sixth, to provide a slice construction in which there is a dam and means for adjusting the position of the roll relative to the dam to :1 v

' the amount oi stock flowing from the headbox to the wire.

other objects and advantages pertaining to details of construction and operation of my haven-=- tion will definitely appear from the description 39 to follow. The invention is pointed out in the claims.

A structure eg the iwtures of my in vention is clearly illustrated in the accompanying drawings, in which:

Fig. 11s as plan view of my improved slice construetion with the central portion cut away.

Fig. 2 is an end elevation view oi my device taken on line 2-4; of Fig. l.

Fig. 8 is a vertical sectional view M tus taken on line 3-3 oi Fig. 1.

Fig. 4 is a detail vertical sectional view of one end of the roll taken on the line 4-4 of Fig. i.

Fig. 5 is a detail sectional view of the roll with portions cut away.

Fig. 8 is a detail view of one 0! the expansion hubs used in adjustment taken on line 6-8 of Figs. 5, 7 and 8.

Fig. 7 is a detail sectional view through one of the expansion hubs taken on line 7-7 of Fig. ,3.

50 Fig. 8 is a detail view of a portion of one of the expansion hubs showing in detail one of the rim sections.

The parts will be identified by their numerals oi. reference which are the-same in all the views.

-'55; My device is a slice construction for paper making machines and is positioned as is in slice construction. It controls the iiow or paper stock, here shown as i, from the head 2 oi the machine to the wire 3 onwhich the pa 1 is formed. The wire is here shown, see "Fig. 8, passing over a breast roll d and over tube or table rolls 5. In place of the usual gate of a slice. it provide a roll 6 which has a surtace that may expanded or contracted at different points independently of the rest of the surface.

The roll 8 comprises a brass tube '1 molded on heads 8 having trunnions 9 and held together by through rods 10 having bolts 11 holding the h in the ends of the tube. The tube *7 is longitu dinully slotted as at it, the slots extending W stantially the length of the tube but ending as at 13 a slight distance from the end oi the tube is preferably of brass but may be 0! r" gi iable material. The slots 12 form longitu mtions it. i

A rubber surface 15 is disposed around the tube. This rubber is blown on in the em employed in ting rolls in paper mills and is vulcanized w acent the ends oithe roll but left free at the middle to slide as the brass tube 7; is expanded or eontrac. Variations ot the. application of the cove may be e without de l 1 i f the invention.

At spaced intervals wi the tu i are ere psion hubs it. Each hub comprises a plu rality oi rim tions 17. each of which is screw= threaded as at 18 to receive a screw is. w screws mare ally 1 w. about the huh, each having ne a beveled-pinion 20. I screws are mounted for w tion in s opening or inhub.

rim sections 1! provided-with tensions 22 extending into grooves 23 in the huh to guide the inw or outward moent of rim sections as the screws 19 rotated. The rim sections it or each hub is are equal in num her to the longitudinal sections 14 or the tube 7 and each rim section 17 is attached to a longitudinal section 14 by means or screws or like ex through the holes 24in said rim sections.

A plurality of

sleeves

25, 28, 27. 28 and 29 provided extending into the tube 7 through one of the heads 8. The sleeves are concentrically arranged and each is adapted tobe rotated independently oi' the other. Each sleeve extends to a diilerent expansion hub and each sleeve has at its respective hub a gear 30 aflixed theretowithasctscrewaiorinanyothermanner. The gear so is in engagement with allot the li.

pinions 20 in its respective expansion -hub .so that rotation of the gear 30 rotates the pinions 20 to rotate the screws 19 and thereby expand or contract the hub with the attached tube 7.

This provides means for independently expandbearings 32 are mounted in a slide 36 which has a screw 37 with a hand wheel 38 connected to move the slide vertically. The slide 36 is mounted in a slide 39 which has a screw to with hand wheel 41 for imparting horizontal movement to the end of the roll.

On the same side of the roll 6 as is the head box 2 I provide a dam 42 which is located adjacent the roll 6 and has a'cylindrical surface 43 op= posed to the surface of the roll 6. The means for moving the roll horizontally thus make it possible to move the roll 6 to or away from the surface 43 to enlarge or decrease the passage 4% between the roll and the dam to control the how of stock therebetween.

The roll is driven by means of a sprocket or pulley 45 and a chain or belt 46 which leads to any source of power, such as a motor. The motor is not shown here as it is conventional only.

Hand wheels 47, d8, 49, 50 and 51 are provided adjacent the end of the roll. These wheels are respectively attached to the

sleeves

25, 26, 27; 28 and 29 and are connected thereto so that the rotation of each wheel will rotate its respec-' tive sleeve and will expand or contract one oi the expansion tubes. 1

' The operation of the apparatus is as follows: The stock 1 in the head box fiows .over the dam 42 and through the passage 44 to. the wire 3 of the paper making machine. If the stock is a free stock the roll 6 is moved into proximity to the tank 2 so that less or the water will run out of the stock as it passes to the wire. it a slow stock is used the roll 6 is moved further to the left; as shown in Fig. 3 so that more water will run out oi the stock before the formation of the sheet starts; I

It will be seen that adjustment vertically by means of screw 37 will determine the height of the ends oi. the'roll 6 from the wire 3. The distance between the surface of the roll 6 and the wire at intermediate points is adjusted by expending or-contracting the expansion hubs 16.

As the stock 1 isfed to the machine the roll 6, is rotated ina clohkwise direction shown in Fig; 3 and the stock flows evenly to the wire. The distance from the surface of the roll to the wire has been adjusted throughout the length of the roll and the roll turns slowly. In this way no pieces of fiber can lodge on the roll to cause a ripple that extends the length oi. the sheet or which causes a lump when the stock is finally released from the gate of the slice in ordinary practice. The stock flows evenly and I have observed that inusing an ordinary slice there is a possibility for eddy currents set up in the head box to cause a ripple in the stock which shows up in the final paper.- By means oi! my adjustable roll I can eliminate any such eddying byvarying the size 01' the opening through which the stock flows to the wire.

- The use of the dam 42 is tantamount'to the use oi. two slices, the opening 44 being adjustable as by one slice and the opening between the roll 6 and the wire 3 being adjustable as by a second slice. 1

I have described the invention in the form pre ierred by me, but desire to claim the same broadly as well as specifically, as pointed out in the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

l. in a slice tor a paper making machine, the combination of a tubular roll slotted longitudinally to provide an expansion surface comprising a plurality of longitudinal sections, a rubber cover on said roll, a plurality of expansion hubs spaced from each other and in said roll, each hub comprising a plurality of circumferentially arranged rim sections each securedto one or said longitudinal sections, a plurality of radially arranged screws in each hub, each screw engaging a threaded opening in one of said rim sections and having a pinion thereon, a plurality of concentrically arranged sleeves extending into said roll, each having thereon a gear engaging the pinions of one expansion hub, means on each sleeve for rotating it independently of the other sleeves, end hearings on which said roll is mounted for rotation, vemcal and horizontal adjusting means for said bearings, and means for rotating said roli.

2. In a slice for a paper making machine, the combination of a tubular roll slotted longitudinally to provide an expansion surface comprising a plurality of longitudinal sections, a rubber cover on said roll, a plurality-of expansion hubs spaced from each other and in said roll, each hub comprising a plurality of circumferentially arranged rim sections each secured to one of said longitudinal sections, means for expanding and contracting said hubs independently of each other,

'end bearings on which said roll is mounted for rotation, vertical and horizontal adjusting means for said bearings, and means for rotating said roll.

3. In a slice for a paper making machine, the combination of a tubular roll having an expansion surface, a plurality of expansion hubs spaced from each other and in said roll, means for expanding and contracting said hubs independently of each other, end bearings on which said roll is mounted for rotation, vertical and horizontal adjusting means for said bearings, and means for rotating said roll.

4. In a slice for a paper making machine, the combination of a tubular roll slotted longitudinally to provide an expansion surface comprising a plurality of longitudinal sections, a rubber cover on said roll, a'plurality of expansion hubs spaced from each other and in said roll, each hub comprising a plurality of circumferentially arranged rim sections each secured to. one of said longitudinal sections, a plurality of radially arranged screws in each hub, each screw engaging a threaded opening in one of said rim sections and having a pinion thereon, a plurality of concentrically arranged sleeves extending into said roll, each having thereon a gear engaging the pinions of I for vertically and horizontally adjusting the position of the ends of said roll, means for driving said roll, a dam positioned adjacent said roll and on the same side of said roll as said head box, said darn having a cylindrical surface opposed to said roll. I

7. In a paper making machine, the combination of a head box, a wire for the formation of paper, a slice comprising a cylindrical roll having an expansible surface, means for expanding and contracting portions of said surface independently of other portions of said surface, means for vertically and horizontally adjusting the position of the ends of said roll, means for driving said roll, and a dam positioned adjacent said roll and on the same side of said roll as said head box.

8. In a paper making machine, the combination of a head box, a wire for the formation of paper, a slice comprising a cylindrical roll having an expansible surface, means for expanding and contracting portions of said surface independent- 1y of other portions of said surface, means for driving said roll, a dam positioned adjacent said roll and on the same side of said roll as said head box, said dam having a cylindrical surface opposed to said roll, and means for moving said roll to or away from said dam.

9. In a paper making machine, the combination of a head box, a wire for the formation of paper, a slice comprising a cylindrical roll having an expansible surface, means for expanding and contracting portions of said surface independently of other portions of said surface, means for driving said roll, a dam positioned adjacent said roll and on the same side of said roll as said head box, and means for moving said roll to or away from said dam;

10. In a paper making machine, the combination of a head box, a wire for the formation of paper, a slice comprising a cylindrical roll, means for driving said roll, a dam positioned adjacent said roll and on the said side of said roll as said head box, said dam having a cylindrical surface opposed to said roll, and means for moving said roll to or away from said dam.

11. In a paper making machine, the combination of a head box, a wire for the formation 'of paper, a slice comprising a cylindrical roll, means for driving said roll, a dam positioned adjacent said roll and on the same side of said roll as said, head box, and means for moving said roll to or away from said dam.

12. In a slice for a paper making machine, the combination of a cylindrical roll having an expansible surface, means for expanding and contracting portions of said surface independentlyv of other portions of said surface, means for adjusting the position of the ends-of said roll, and means for driving said roll.

13. In a slice for a paper making machine, the combination of a cylindrical roll having an expansible surface, means for expanding and contracting a portion of said surface independently of other portions of said surface, and means for driving said roll.

10 14. In a slice for a paper making machinehavly of the clearance between other portions of the surface and said wire.

WILLIAM B. CLEMENTS.