US1501179A - Felt washer - Google Patents

Description

J. PEAcocK ET AL FELT WASHER Fied 001.

4 Sheets-Sheet 1 FELT WASHER Filed Oct. l2 19.20,

4 Sheets-Sheet 2.

IHVEFITORS July 15 1924. l 1;'50L179 J. PEAcocK ET AL FELT WAS HER Filed oct. 12. 1920 4 sheets-Sheet `5 IHVEHTGRS.

Patented `luly l5, 1924.

JAMES rEAcocK, EDWIN MGCLELLAMAND FREDERICK E. DoRiTY, or OTTAWA,

oNTARiVo, CANADA.

FEET WASHER.

Application filed October 12, 1920. Serial No; 416,478.

To @ZZ 107mm t may concern.'

Be 1t known that we, JAMES PEAGOCK,

EDWIN lVIc-CLELLAN, and FREDERICK F DonrrY, citizens of the Dominion of Canada', residing at Ottawa, in the county of Carleton and Province of Ontario, have invented certain new and useful Improvements in Felt Washers, of which the following is a specification.

rThis invention relates to washing devices for felts, such as are commonly used in paper making machinery, and it may be utilized on similar parts of analogous machines. It is common practice to wash such felts at least once every twenty four hours, and the principal object of the present invention is to perform this washing operation in an effective manner, and with rapidity and ease.

In manufacturing paper, the stock from which the paper is made is deposited on the said felts, and particles of such stock adhere to the felts after the paper sheet have been carried therefrom, and it is the removal of such deposited particles, `and the effective cleaning of the felts for which this invention is designed.

To effectively clean the felts I utilize both a watering and a suction process which processes may be carried out to any desired extent, and in combination with this washing and suction, I further use steam jets. The strength of the suction may be regulated so that the cleaning function will be properly 5 performed and the several parts of the machine coming in contact with the felts on theirpassage therethrough, will be protected by a non-ferrous metal which will to all practical purposes be non-corrosive, so that the said metal will not have any deleterious effects on the felt.

So that my improved washing device will be properly understood I have illustrated a preferred embodiment of the same which will now be described in detail, after which the novel lfeatures will be pointed out in the appended claims.

In the drawings: Figure l is a sec-tion through my improved felt washing device.

Figure 2 is a perspective view of one of the end frames, showing the suction box connections, the steam connection and the water connections.

Figure 3 is a perspective view of the other end frame, showing the gearing which controls the rotation of the suction boxes into position. i

Figure 4 is a perspective view of the end frame illustrated in Figure 3 but with the gearing removed. Similar symbols of reference indicate corresponding parts in all the drawings.

Referring no-w to the drawings, the washing device consists of'a pair of end frames l and 2 which may be bolted to or otherwise suitably secured to a frame or bed. The frame l consists of a cas-ting having a body portion 3, with an arcuate recess 4 in the top center portion thereof, and orifices 5 adjacent to the sides of the frame which orifices act as journals, as will be explained hereafter.

Between the journals 5 the frame is provided with a ournal 6, and on the top of the frame .and on opposite sides of the arcuate recess 4, a pair of diverging arms 7 are provided, having journals 8 through the upper ends. y

The frame l is formed with [integral flanges 9 through which bolts l0 pass to secure the frame to a bed frame. The frame l is also formed with a pair of bearings 11 which extend outwardly from, and adjacent to the journal 6 and 'these bearings are provided with removable caps l2.

Through the wall of the arcuate recess 4, set screws 13 are threaded.

The end frame 2 is somewhat similar to the end frame l, being provided with an arcuate recess 4, through which set screws 13 are threaded, and is formed with journals On the upper wall of the end frame 2, diverging arms 7 are located on opposite sides of the recess 4, and are formed with journals 8.

The end frame 2 has integral flanges 9, with bolt holes through which bolts can pass to secure the end frame to a bed frame.

The end frames l and 2 are arranged in spaced relation and parallel to each other with` the journals 5 and 8, and the arcuate recess 4 of the frame l in axial alignment with the corresponding journals 5 and 8, and the arcuate recess 4 of the frame 2.

Between the spaced end frame, I provide a pair of suction boxes 14 and 15, the first of which has substantially parallel side walls 16 and an arcuate bottom 17, the side walls 16 being of unequal length, with the shorter wall formed with an arcuate arm 18 which is provided with a cover orr capping 19 of non-ferrous metal.

The point ofthe longer side wall 16 is provided with a cover 20 of non-ferrous metal. The suction box 14 is open at that end between the cappings or covers 19 and 2O of the side walls 16,` and is provided on the ends with trunnions, which are journalled in corresponding journals 5 of the end frames 1 and 2. y

`The end of the trunnion projecting beyoud the end frame 1, is provided with an arcuate rack 21 which is formed at the ends with enlarged stopmember 22, thereby limiting the rotation of the said rack.

The suction box 15L is U-shape in cross section, and the side walls are of unequal length and formed with enlarged flanged ends 23, which are capped by strips of nonkferrous metal 24. This suction box 15 is formed with trunnions which are journalled in corresponding journals 5 of the end frames 1 and 2, and on the trunnion projecting beyond the end frame 1, I provide an arcuate rack 25 having stop members 26 at the ends thereof which limit the rotation of the said rack.

In thebearings 11 a shaft 27 is journalled transversely to the longitudinal axis of the suction boxes 14 and 15, and on the ends of this shaft, worms 28 and 29 are mounted which mesh with the arcuate racks 21 and 25 respectively.

On that portion of the shaft 27, between the two bearings 11, I mount a worm wheel 30 which meshes with a worm 31, mounted on the shaft or spindle 32 which is journalled in the journal 6, and this shaft or spindle is provided with a hand wheel 33 whereby it may bey rotated to rotate the arcuate racks 21 and 25 simultaneously in similar directions to bring the suction boxes 14 `and 15 into operative position, or to rotate them into an inoperative position, as is found necessary. l

In the arcuate recesses 4, I mount a steam pipe 34, which will bey secured in position by the set screwr 13, and one end of this steam pipe is a dead end, while the other is connected by a pipe 35, to a source of steam supply.

The pipe 34 is provided in the lower wall with a plurality of angularly disposed orifices 36through which streams or jets of ysteam issue.

Two water pipes 37 and 38 are provided which are journalled 1n corresponding journals 8 of the end frames 1 and 2, and these water pipes are connected by pipes 39 and 40 with a source of water supply. These water pipes have perforations 41 and 42 on the under wall thereof. Y

The trunnions on that end of the suction boxes 14 and 15 which are journalled in the end frame 2 will preferably be formed hollow, and connected by pipes 43 and 44 with a vacuum or suction apparatus, and in Figure 2, the pipe 44 is shown with a valve 45 connected thereto by means of which the suction may be regulated to a certain extent.

The pipes 35, 39, 40 and 43 will all have valves thereon, but these valves are not shown as I consider the showing of the valve 45 sufcient to indicate that the other valves will be used.

The felt 46 to be cleaned is passed between the two end frames 1 and 2 and below the water pipes 37 and 38 and the steam pipe 34. In positioning` the felt the suction boxes 14 and Y15 will be in the position indicated by the dotted lines in Figure 1.

As soon as the felt is positioned, the hand wheel 33 is rotated to rotate the spindle 32 and worm 31 thereon, which rotates the worm wheel 3() on the shaft 27 so that the worms 28 and 29 rotate the arcuate racks 21 and 25 on the trunnions of the suction boxes, rotating the same in similar directions and bringing them into the position shown by the full lines in Figure 1.

The cap 2O on the longer side wall 16 of the suction box 14 will then rest against the felt which willL also pass over the cap 19 on the arcuate arm 18 of the shorter side wall 16 of the said suction box. The felt 36 will now lap the perforated portion of the steam pipe 34 and to all practical purposes form a seal for the open end of the suction box 14.

The caps 24 on the upper ends of the side walls of the suction box 15 will also engage the felt 46.

In positioning the felt 46 for washing purposes, care should be taken to have that side on the bottom which would be the top side of the felt when in use on the paper making machine, because it is on that side that the particles of the stoel; from which the paper is formed will be deposited.

The cleaning operation is as follows: The felt 46 is fed through the washing device, and water is sprayed from the pipe 37 onto the felt, performing a washing operation, and the wetted felt now travels over the suction box 14 and under the steam pipe 34 where a combined suction cleaning and steam cleaning is applied to the felt, so that all particles adhering to the under side of the felt will be removed and drawn off through the suction box.

The felt will now be in a heated state and on its continued motion will travel over the lThe amount` of suction exerted on the felt 4G in passing overthe suction boxes may differ, by that I mean to say, a greater or less suction force may be exerted on the box 14 than on the box 1 5, or vice versa.

The sprayingof water from the pipes 37 and 38 may be controlled in the same way and the angle at which the spray iinpinges with the felt may be altered to suit the circumstances of the cleaning.

rlhe steam pipe 34 may be adjusted in the arcuate recesses 4 by loosening the set screws 13, and rotating the pipe so that the orifices 36 will be properly disposed above the open end of the suction box 14. After the cleaning of the felt has been completed, the hand wheel 33 will be rotated and through the train of gears, will rotate the suction boxes 14 and 15 into the positions indicated by the dotted lines in Figure 1, and so allow the felt to assume its normal path of travel.

The parts may be made of any desirable material suitable for a construction of this nature. It has been hereinbefore mentioned that the surfaces where the felt comes in contact with the suction boxes are protected by non-ferrous metal coverings or cappings, and the suction boxes may be constructed of aluminum or other non-corrosive subst-ance which will not have any tendency to rust through water being deposited thereon during the cleaning operation.

I claim:

1. A felt cleaning device having spaced washing members, and a suction cleaning means between the washing members.

2. A felt cleaningy device having spaced liquid spraying members, a suction cleaning member between the spraying members, and a steam cleaning member between the spraying members.

3. A felt cleaning device having spaced liquid spraying members above the felt, a

`suction cleaning member between the spraying members and below the felt, and a steam cleaning member above the felt and superposed on the suction cleaning member.

4. A felt cleaning device having spaced Vliquid spraying members, a pair of suction cleaning members between and below the liquid spraying members, and a steam cleaningniember located normally above the open end of one of the suction cleaning members. 5. A felt cleaning device having spaced liquid spraying members, a pair of suction cleaning members between and below the liquid spraying members, means for simultaneously rotating the suction members,

liquid spraying members, a pair of suction' cleaning members between the liqui-d spraying members, cappings of non-ferrous metal on the portions of ythe suction cleaning meinbers which contact with'the felt, and a steam cleaning member located aboveone of the suction cleaningv members. i

7.'A felt cleaning device having spaced liquid spraying members, and a suction cleaning member between the liquid spraying members having a trough-like body portion, with sides of unequal length, and an arcuate arm on the shorter side.

8. A felt cleaning device having spaced liquid spraying members and a suction feeding member between the liquid spraying members of substantially U-shape, having its side walls terminating in flanges and cappings on the said flanges.

9. A felt cleaning device havingl spaced liquid spraying members and suction cleaning members between the liquid spraying members, and means for controlling the suction force exerted Y`in the suction cleaning members. y

10. A felt cleaning device having means for sprayingthe felt, suction means for subsequeiitly cleaning the felt, steam cleaning steam pipe.

12. A felt cleaning device comprising end members having diverging arms with journals, perforated water pipes journalled in the said journals, a steam pipe adjustably mounted on the end members between the arms, and a suction cleaning device below the steam pipe.

13. A felt cleaning device comprising end members having arcuate recesses in the top thereof, a perforated steam pipe mounted in the recesses, adjustable means for securing the steam pipe in position, perforated water pipes carried by the end members on opposite sides of the steam pipe, and a suction cleaning device below the steam pipe.

14. A felt cleaning device comprising end members, perforated water pipes carried by the end members, a perforated steam pipe lbetween the Water pipes and supported by the end members, suction cleaning means,

3050i the felt?, submitting the felt to the action means for simultaneously rotating the suction cleaning means, and means for limit-ing the. rotation of the suctioncleaning means.

16. A felt cleaning device comprising means for Washing the felt, suction means VFadjacent to the Washing means for cleaning the felt, heating and pressure cleaning means above the suction cleaning means, and Washing and cooling means beyond the last said means. Y, y

17. A. method of cleaning paper making machine felts, Whichconsists in initially directing a cleaning fluid against one surface of the felt, submitting the felt to the action of live steam to drive and suction to draw the cleaning fluid through the felt and subsequently spraying and cooling the felt.

IS. A method of cleaning paper making machine felt-s, which consists in initially directing a cleaning fluid against one surface of live steam and suction to expel the moisture fromthe felt, submitting the felt to a secondary suction cleaning operation and subsequently spraying` the -same 19. A method of cleaningpaper making machine felts, which consists in initially moistening the felt, subjecting the felt to a moisture expelling mediiun, passing the felt over a suction, means for further cleaning the same and subsequently cooling the felt.

20. A felt cleaning` device comprising means for Washing arranged above the felt, a secondary Washing means on the same side of the felt and a suction cleaning means arn ranged under said secondary Washing means adapted to draw the Washing fluid through said felt. j.

21. A felt cleaning device comprising `means for Washing arranged above the felt7 means for steam spraying the felt, suction means for cleaning the felt and said spraying and suction means arranged respectively above and'beloiv the said felt adapted to drany said spraying through said felt.

22. A' felt cleaning device comprising means for dir cting jets of cleaning fluid against one surface of the felt, a means for directing jets of steam against the same surface of the felt and suction on the opposite side of the felt adapted to draw said ste-am through the felt.

23. In an apparatus of the class described,v means for directing the jets of cleaning fluid against one surface of the felt to cool the fabric, an open-topped suction device on the opposite side of the fabric from said means vadapted to d-raiv cleaning fluid through said fabric and said fabric being caused to dip intoV said suction device and form a seal therefor-While passing over the same.

2st. In an apparatus of the class described comprising a frame over which felt is adapted to pass, means for directing two distinct jets ofcleaning fluid against one surface of the felt and open-topped suction means on the opposite side of the felt intermediate said jet means for drawing the cleaning fluid through the felt.

25. In an apparatus of the class deon the opposite side of the felt for drawing the cleaning' fluid therethrough, said suction means being` open at the topi to permit the felt to dip into said means and to form a seal therefor, a second suction means for cleaning the felt and means for subsequently spraying and cooling the felt.

27. In an apparatus of the class described, the combination with a felt, of means for causing the felt to bodily dip and simultaneously submitting the felt to a Washing operation and direct open-topped suction cleaning.

28. In an apparatus of the class described, the combination with a felt, of means for causing the felt to bodily dip and simultaneously submitting the felt to a Washing operation and direct open-topped suction cleaning and means for subsequently cooling the said felt.

29. In an apparatus of the class described, the combination with a felt, of a means of submitting said felt to a Washing operation over an open-topped suction box and said felt being caused to buckle into said suction box and form a seal therefor during its travel thereover.

30. In an apparatus of the class described, in combination with a felt, of means for spraying and driving steam on one side of said felt, suction means on the opposite side of said felt for drawing the cleaning fluid therethrough and a means for regulating said suction means relative to said felt so as to regulate the buckling of said felt into said suction means during its travel thereover.

31. A felt cleaning device comprising means for washing arranged above the felt, suction cleaning means arranged below the felt adapted to draw the washing iluid through said felt and said suction cleaning means adapted to oscillate when desirous of changing the relative position between said washing means and said suction cleaning means.

32. A felt cleaning device comprising means for washing arranged above the felt and in contact therewith, a suction cleaning means mounted to oscillate below said felt and the actuation of said suction cleaning means toward said washing means causing said felt to buckle. Y

33. A cleaning device comprising means for washing arranged above the felt and in contact therewith and suction cleaning means arranged directly opposite and below said felt adapted to draw thevwashing :Huid through said felt.

34. A felt cleaning device comprising a suction cleaning means arranged below the felt and in contact therewith, a washing means arranged above the felt, said washing means being so formed as to direct its force in washing into said suction box and the suction means constructed to cause the web to bodily dip thereinto.

35. A felt cleaning device comprising a suction cleaning means arranged below the felt, a cleaning means arranged above the felt, said cleaning means being so formed as to direct its force in washing into said suction box and a primary and secondary washing means on the same side of said felt as said cleaning means.

36. In an apparatus of the class described, in combination with a felt consisting of a pair of suction boxes spaced apart under said felt and washing means above said felt upon opposite sides of the suction boxes.

37. In an apparatus of the class described,

in combination with ami'elt consist-ing of a pair of suction boxes spaced apart under said felt, spaced washing means above said felt pair of suction boxes spaced apart under said felt, spaced washing means above said felt, a spray cleaning means intermediate said washing means and said steam cleaning means adapted to force steam through said felt in alignment with the opening of one of said suction boxes.

39. In an apparatus of the class described, in combination with a felt consisting of a pair of suction boxes spaced apart under said felt, spaced washing means above said felt, a spray cleaning means intermediate said washing means, said steam cleaning means adapted to force steam through said felt in alignment with the opening of one of said suction boxes and a means for regulating the distance between said steam cleaning means and its co-operating suction box.

40. In a felt cleaning device comprising means for washing and means for suction, said means being positioned on the opposite sides of said felt and the position of said washing means in relation to the said suction means being such as to cause said felt to buckle and bodily dip into the suction means during its travel under said suction means.

In testimony whereof we afx our signatures in the presence of two witnesses.

JAMES PEACOCK. EDIVIN MCCLELLAN. FREDERICK F. DORITY.

' Witnesses:

E. GOFFIN, M. MCMILLAN.

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