US2003103A

US2003103A - Means and method of stringing a fourdrinier wire

Info

Publication number: US2003103A
Application number: US629716A
Authority: US
Inventors: Earl E Berry
Original assignee: Beloit Iron Works Inc
Current assignee: Beloit Iron Works Inc
Priority date: 1932-08-20
Filing date: 1932-08-20
Publication date: 1935-05-28
Anticipated expiration: 1952-05-28

Description

May 28,- 1935. E. E. BERRY 2,003,103

MEANS AND METHOD OF' STRNGNG A FOURDRINIER WIRE Filed Aug. 2o, 1952 4 sheets-sheet 1 TD1 DODBOOOO @mm om Q51 wm: m N

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E. E. BERRY May 28, 1935.

4 sheets-sheet 2 Filed Aug.. 20, 1952 N ,.H @NEMEN NIMH. Hw a mw W ,Mmm l @un L@ gi.-{illlll (n my M PNN SW .nl,

M m W 4 w OQQQQQQQQ@ ll mw w E. w m E. LL NM mm, NQ MWW @www Wm NN uw QN f wm.. IL

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May 28, 1935.

E. E'. BERRY May 28, 1935.

MEANS AND METHOD OF STRNGING A FOUHDRINIER WIRE Filed Aug. 20, 1952 4 Sheets-Sheet 4 Zigi Patented Mayl 28, 1935 `UNITED STATES PATENT oFF-ICE MEANS AND METHOD oF STRJNGING A FOURDRINIER Wma c consin Application August 20, 1932, Serial No. 629,716

45 Claims.

This invention relates to a means and method of stringing a Fourdrinier wire on a paper mak- `ing machine of the Fourdrinier type provided with a laterally removable table structure.

5 In one of the heretofore known and generally practiced methods of replacing an old wire with a new Fourdrinier wire on a removable type of Fourdrinier paper machine, the old wire is iirst removed from the table structure and the table structure moved out laterally from the machine; the new wire is then suspended in an open loop inline with the machine, between the sills thereof and the table structure is run back into place within the loop of the new wire. 'I'he wire is then tightened in place on the table structure, with the elements thereof properly arranged in operating position. While there are n various modifications of this general method. of Stringing a new. wire, all of the practicalmethods, so `far as I am aware, involve the Stringing of the wire in the line of the machine..

The operation of unwinding a roll or spool of a new Fourdrinier wire, especially on a big machine where the Fourdrinier itself may be over twenty feet wide and over a hundred feet long, consumes a considerable amount of time, because the wire must be handled very carefully in order not to wrinkle it or otherwise damage it. There have been several schemes devised for pulling the wire over the Fourdrinier frame structure, lbut this is a very delicate operation, and almost impossible to perform on a large machine without damaging the wire. In such an operation, both 'the top and bottom runs of the wire must be points for its entire length, for if it is pulled on slightlyfaster in one place than in another, the wire is liable to be wrinkled. It-is also necessary, in this class of operation, to slide the wire over some stationary support and this gives rise to many diiiculties. f

My present invention obviates the diflculties of lthe heretofore methods of Stringing a new wire on a removable type Fourdrinier and at the same time greatly reduces the amount of timev lost in the Stringing operation. One of the principal features of my invention is the provision of means for Stringing the new Wire in an open loop alongside of the operating position of the Fourdrinier frame structure. By my method, the new wire can be suspended in looped position While the machine is still running, and then after the old wire has been removed from the Fourdrinier frame structure,l the latter can be run out into 55v the loop of the new wire, the wire tightened reduced.

pulled atexactly the same rate of speed at several thereon and the Fourdrinier frame structure run back into position in the machine. In this way, the amount of productive time lost in the changing of a wire on a paper machine is considerably It is therefore an object of this invention to provide a means and method for Stringing a new wire on a laterally removable type of Fourdrinier paper machine, according to which the disadvantages and diniculties present in heretofore lv known practices are largely eliminated or reduced and a saving in the productiveltime of operation ofthe machine is eilected.

It is a further 'object of this invention to provide a means and method for Stringing a new l wire on a removable type Fourdrinier paper machine, in which the new Wire is suspended in an open loop in the. aisle of the machine room outside of the operating line of the machine and means are provided for laterally moving out the Fourdrinier frame structure into the loop of, the wire and for returning the Fourdrinier frame structure into operative position with the newwireln place thereon. v

` It is a further important object of `this invention. to provide a novel manner of mounting and supporting alcouch roll to permit the couch roll to be moved out laterally with the Fourdrinier frame structure and to permit the couch roll to be supported in operative position independently of the pitch of the Fourdrinier frame structure. y

It is a further important object of this invention to provide a novel arrangement of tracks for supporting the Fourdrinier frame structure in operative position and, for lateral, removal thereon during the operation of changing the wire.

It is a further important object of this invention to provide a Fourdrinier frame structure 40 capable of adjustment as to pitch and an arrangement of tracks for supporting the Fourdrinier frame structure when lowered thereon for lateral removal and means including said tracks for supporting the entire weight of the Fourdrinier frame structure during lateral removal and in its removed position.

A further important object of this invention is to provide means for Stringing a new wire on a laterally removable Fourdrinier paper machine that includes a laterally removable Fourdrinier frame structure and means for supporting both the breast roll and couch roll therefrom for removal therewith as a unit.

It is a further important object of this inven- 55.

tion to providemeans for suspending a loop of a new Fourdrinier wire outside of the line of operation of the paper machine and a track structure and external support so arranged as to support the Fourdrinier frame structure within the loop of the new wire and out of contact therewith when the Fourdrinier frame structure' is moved into its laterally removed position.

It is a further important object of this invention to provide sets of tracks, each including a fixed and a movable track, with the tracks normally position below the lower run of the wire and the `movable tracks freely movable when the Fourdrinier frame structure is supported on the fixed tracks and when the frame vstructure is in laterally removed position supported jointly by the fixed tracks and external supports. Other and further important objects of this inventionwill become apparent from .the follow-l ing description, the drawings and appended claims.

The invention (in av preferred form) is illustrated in the accompanying drawings, in which Figure 1 is an elevational view of the rear or back side of the Fourdrinier portion of a paper machine of the constant pitch-type, illustrating more or less diagrammatically the construction embodying the principlesof my invention and showing in dotte'd lines the position of a new Fourdrinier wire suspended inI an open loop alongside and out of the operating line of 'the machine. I

Figure 2 is an enlarged broken view of the breast roll and couch roll ends of the Fourdrinier frame structure showing in dotted lines the operation preparatory to moving the frame structure out of thel machine in the Stringing ofthe new wire.

Figure 3 is a transverse sectional view taken substantially along the. line III-III of Figure 1 withV parts in elevation, showing in dotted lines the method of operation, with the frame structure in removed position and means suspending the new' wire in an open loop outside of the line of the machine for receiving said frame structure.

Figure 4A is a sectionafview vtaken substantially along the line IV--IV of lFigure '3, showing the couch roll half of the 'Fourdrinier frame structure in laterally removed position and Figure 4B is the same view of the breast roll half of the frame structure, showing the wire tightened in place on the frame structure preparatory to moving the same back into the machine.'

Figure 5 isfan enlarged top plan, brokerinlew of one set of track structures and external`suppiolrts therefor, showing the operatiomiin dottedJ es. f Y

Figure 6 is an enlarged sectional view taken substantially on lineVI-VI of Figure 5, with parts in elevation.

Figure 7 is an enlarged sectional view taken substantially on line-VII-VII of Figure 5, with parts in elevation. I

Figure 8 is a side elevational view of a modified form of construction of the Fourdrinier part of a paper machine, embodying the principles of my invention in connection with a variable pitch type of machine, showing in dotted lines means for suspending the .new wire in an vopen' loop for receiving the machine therein.

Figure 9 is an enlarged, fragmentary view of the couch rollend of the Fourdrinier frame structure shown in Figure 8.v

vated parts for supporting The reference numeral I (Figures 1 to '7 inelusive) indicates generally a Fourdrinier frame roll 6 is mounted upon supports 1 in such manner as to be shakable independently of the Fourdrinier frame structure. The particular manner of mounting and the construction of the associthe breast roll 6 are best shown in my U. S. Patent No. 1,880,685, granted October 4, 1932. Only so much of the mounting of the breast roll 6 will be described here as isv necessary to an understanding of the present invention.

Said breast roll 6 is mounted separately from the Fourdrinier frame structure upon spring supporting members, including vertical spring members 8 and horizontal spring members 9. Said spring members 8 and 9 are suitably secured to bearing boxes, indicated generally by the reference numeral I0, for supporting the frontend rear ends of the breast roll 6. Each of said bear- Aing boxes III is provided with a lower hinged section I I that can be released to provide an opening through which the journals of the breast roll 6 may pass in the direction of the table structure.

A mechanism, indicated generally at I2, is provided on the Fourdrinier frame structure for supporting therbreastroll Ii at the ends thereof and for moving said breast roll vfrom its normal operating position to a position' depending from the Fourdrinier frame structure, as indicated in dotted lines in Figure 2. Said mechanism I2 comprises a sector gear I3 mounted at each end of a transverse shaft I4 supported from. said side beams 2 and 3. Said shaft I4 also carries, at each end, an arm I5 rigidly keyed thereto and having -at its outer or free end a yoke I6 encircling but not tightly engaging the shaft of the breast roll 6. A suitable drive mechanism I1, including pinion gears Il meshing with the gear segments I3, serves to actuate the shaft I4 to move said arms I5 rwith the breast roll 6 supported thereon from operating position to the depending-:position indicated -in dotted lines in Figure 2 and in full lines in Figure 4B. When in the latter position, .the breast roll 6, is entirely supported from the movable Fourdrinier frame structure, clear of the vertical supports 8.

A couch roll I9 is mounted a`t the opposite end Afrom the breast roll. S'id couch roll rI9 may be of the plain or suction type, but preferably is a suction couch roll provided with /a/ clutch operated driven shaft, as indicated at 20 (Fig. 8) and with sectional, or otherwise ,detachable suction pipe connections. The endsof the suction couch roll I9 are-journalled in bearing boxes 2I, which, in turn, are supported upon auxiliary frame members 22. Said framemembers 22 are pivoted as at 23 to the side beams 2 and 3 adjacent the ends thereof. Each of the auxiliary frame members 22 is provided with an integral extension 24 having the/beams 2 and 3 but the outer ends theauxiliary frame members 22 rest directly upon supporting members on pedestals 21, which tlus bear the entire weight ot the couch roll I3.

As will later be explained in greater detail, however, when it is desired to remove the table structure laterally, the bolts 26 are turned up against the underside of the side beams 2' and 3 to raise the extended ends of the auxiliary frame members 22 about the pivot axis 23'so as to provide a clearance, indicated at 23, (Figures 2 and 4A), between the lower sides ot the auxiliary trame members 22 and the pedestals 21. This 'elevated position of the couch roll I9 is indicated in dotted lines'in Figure 2 and in-full lines in Figure 4A. i j

When the machine is in normal operation, a. wire 29 extends around the breast roll 3 and couch roll I 9, with the upper run of the wire supported by the table rolls 4, suction boxes 5 and auxiliary roller 3|. 'I'he lower run of the wire 29 is properly guided and tensioned by means o'i guide

rollers

32, 33, and 34, and a tension roller 35. All of said

rollers

32, 33, 34 and 35 are so f'mounted and positioned'that the lower run of the wire 29, in operation, lies above and clears

track members

36 and 31 `that are provided for supporting the Fourdrinier frame structure in opf erating and laterally removed position.

Each cf the sets of

tracks

33 and 31, vcomprises a stationary track 33 and afmovable track 39, as best shown in Fiss. 3 to 7 inclusive. Each ot the stationary tracks 33 is supported at its front and rear ends by pedestals 4l and 4I, respectively.v

vSaid pedestals 4l and 4| rest directly-upon tbe flooring or other support 42 that torms'the su porting base for theipaper machine. l Each of the supports 4l -and 4lis of. substantially the same construction and comprises a casting formed with a foot or extension 43 andan upright portion 44 (Fig. 6). Each stationary track 38, which may suitably be -formed trom a channel beam, is attached to an upright portion 44 of a pedestal by means of a plate 45 and bolts 46, with the web of the channel beam-held against the vertical face oi.' the upright portion 44- and the lower leg of the channel beam resting upon the foot 43. Each of the tracks 39, which may also be a channel beam, is mounted in parallel,

spaced relationship to a xed or stationary track 38 and is supported and guided by rollers carried by said stationary track. One o! said rollers 41,(Fig. 6) is rotatably mounted upon each of a l. plurality oi' stub shafts 43 'carried from a stationary rail 38. Said rollers 41 support the movable tracks 39 through their upper webs, which are provided on their inner faces with l0ngitudl`.

` is positioned' near the' fr'ont side of the machinenally extending grooves 49 into which the faces of the rollers 41 extend.

Each o1' the sets of

tracks

36 and 31 is `also provided with at least one roller 50 (Fig. 7) that Iand supported similarly to the rollers 41, as by means oi.' a stub shaft 5| from a stationary track 38, except that each roller 59 is placed at a lower level in order that its face may run in a groove 52 extending longitudinally of an inner face of a lower webof a track 39.

Each o f said movable tracks 39 is considerably longer than the corresponding stationary track 33, so that in normal position it extends beyond the endk of the corresponding track 33 at the rear side of the machine, as at 53 (Fig. 3),. Both ends of the movable and stationary tracks, in normal position, extend slightly\ beyond the forward pedestal. to terminate together as at 54.

When themovable tracks 39 are pulled out on the i'ront side of the machine into their extended positions, indicated in dotted Vlines in Figures 3 and 5, they are supported in cantilever fashionby the lower rollers 50 bearing against the lower webs of the channel members and'certain of the upper rollers 41, at the front side of the machine,

bearing against the upper webs of saidv channel.

members. In fully removed position, the forward ends ot the movable tracks 39 are adapted to rest 1 upon seats 5 5 of permanent pedestals or abutments' 56, which rest upon the ooring 4 2. In laterally removed position, the tracks 39 are supported in this manner appreciably above the surface level of the flooring 42.

Each of the longitudinally extending sid beams 2 and 3 of the Fourdrinier frame structure, as best shown in Figures 1, 3, 4A, 4B and 6, carry, in aligned relation to the

tracks

36 and 31,

housings

51 and 58, respectively, which are secured to the underside of said beams. Each of said housings provides asupport for a pair of rollers 59 and 60, separated by a peripheral ilang'e 6I. Said housings 51 and 58'at both sides of the machine provide

bearings

62 and 63 for the ends oi a shaft 64 that extends alongthe side beams between said spaced

housings

51 and 58." Said shafts 64 are adapted to be driven from a motor 66 carried from the front side beam 2, through suitable drive means and reducing gears indicated at 61. The rollers 59 and 60 in the

housings

51 and 53 are keyed or otherwise xed on said shafts 64 so as to be driven therewith from the motor 36.

In order to prevent binding between the faces I of the webs on the movable track members 39 and thekfaces of the rollers cooperating therewith, a slight clearance, as at 68, is provided (Fig. 6). of the feet 43 of the-pedestals 40 are cut away as at 69 to provide clearances beneath the lower faces of the movable track members 39. Because of these provisions, the track members 39 can be readily moved in and out while the rollers 59 bear against the upper webs of the stationary track members 36. The weight of the Fourdrinier frame structure, when in operating position, is thus seen torest upon and be supported by the stationary track members 38.

In Figures .8 and 9, there is shown a 'modified form of Fourdrinier frame structure `with respect to the manner of mounting and supporting said structure to permit'the pitch of the wire to be varied. 'I'he structure shown in Figures l to 7 inclusive, which has already been described, is

40 Similarly, the upper 'surfaces of each that of a constant pitch type of Fourdrinier,

whereas the modied construction of Figures 8V and 9 provides for adjustability asto the pitch of the wire and supporting frame structure. Otherwise, the two constructions are much the same and thereforesimilar reference numerals will be used to indicate correspondinIb parts of the two structures that are'identical or substantially so, and only the modied portions of the structure that permit the adjustability as to pitch will be further described.

As shownv in Figures 8 and 9, the Fourdrinier `frame structure, in operating position, is sup- F ported wholly or in part by means of a plurality of tower jacks 15 and 16, which are spaced along each longitudinally extendinglsidebeam of the trame structure to bear against the undersides of said side beams and support said frame struc'- 'r ture. Two sets of tracks 11 and 18, :in general.

similar to those already described, are positioned at suitable levels to permit the jacks and 16 to operate to adjust the framestructure and wire positioned at a lower level 'than the tracks 11 near the breast roll end, so that whenthe frame structure is at any position other than that of its greatest pitch, there is a clearance, as indicated at 19, between the tracks 18 and the 'cooperating rollers. I. The jacks 16 may be operated, either alone or in conjunction with the jacks 15, to vary the pitch of the wire and supporting frame structure through a distance permitted by the clearance 19, as indicated in dotted lines in Figure 9. When the frame structure is to be removed lat-l erally out of the line of operation of the machine, both sets of jacks 15 and 16 are operated to lower said frame structure onto the sets of tracks 11 and 18.`

The provision of adjustable means for varying the pitch oi the wire makes necessary also a slight modification in the manner of supporting the couch roll. The general arrangement and manner of mounting the couch roll, however, is the same as that previously described. As best shown in Figure 9, the couch roll |9 is mounted in bearings 80 which are xedly carried by supporting members 8|. Said supporting members 8| normally rest upon, but are not secured, except by removable means, to supporting bases 82. Said, bases 82 may be suitable permanent abutments or the like that rest directly rupon the i'iooring 42.

A pair of arms 83 are mounted from the couch `roll ends of the side beams 2 and 3 upon pivot pins 84. Said arms 83 areprovided with yokes 85 that encircle the journals 'of the couch roll shaft in such manner as to permit free rotation,

of' the shaftduring operation. The other ends of said arms` 83 are provided with offset portions 86 that .extend -under the corresponding side beams 2 and 3 and'are bored to receive relatively long bolts 81. Said bolts 81 are adapted to be turned to bear against the undersides f the beams 2 and :3 when it is desired to support the weight ofthe couch roll |9 from the frame struci ture and liftv'it offA of the supporting bases 82.

To permit free adjustability of the frame struc-'-v ture and wire as to pitch, the bolts 81 are made longer than the bolts 26 previously described in connection with the structure shown in Figures 1 and 2. v

. When the Fourdrinier frame structure of the modinedform. shown in Figures 8 and 9 is to be` laterally removed, the bolts 81 are' threaded up against the undersides of the beams 2 and S'until the couch roll |9 and the supporting standards 8| have been raised suiilciently to provide a gap 'as indicated at 89 (Fig. 9) between4 the standards 8| and the base supports 82. The Fo'urdrinier frame structure is then free to -be moved out over the tracks 11 and'18, with the couch roll I9 and.

the' breast roll 6 both supported Afrom the frame structure, as previously described. K

Irrespective of whether the Fourdrinier frame structure vis of constant pitch or of adjustable pitch, the manner of suspending a loop of new v wire alongside and out of the line of operation of themachine,in accordance with my. present invention, is the same. Prior tothe removal of the old wire from the machine, a new wire 90 (Fig-v I ures 1, 2, 3 and 8) isfunreeled and strung up inv Vthe lop of the new wire is held in position along the ooring 42 but 'out of direct contact therewithv by, means of other spindles 93; At the breast roll end'of the machine, the loop of the new wire 90 is supported by means of, spindles 94 and 95 (Figs. 2 and 8) so that said end of the wire loop lies outside of the breast roll 6 in its suspended position, to provide ample clearance between said breast roll and the suspendednew wire. vSimilarly.

spindles

96 and 91 hold the couch roll end of the loop of the new wire so that the couch roll will clear the same when the frame structure ismoved into the loop of the Wire. Y

' As shown in Figure 8, the spindles 93 along the lower run of wire'90 are held in position near the oor 42 by means of U-shaped stands |0| secured to the door. The stands |0| are provided with removable pins |0| to retain the lends of the spindles 93 in the stands. The spindles, while they mayrotate freely, are thus held in position. `When the wireY 90 is to be drawn up on the ma- |06. The lower bracket |03 is equipped with a lremovable pin|01 to hold the spindle 91 therein.

The pin |01 is required to prevent the spindle from being raised out of position due to the uppull 'of the wire 90 at this point. Similar brackets |02and |03, carried by a pipe stand |048 (Fig. 8) are provided for

spindles

94 and 95 at the breast roll end of the machine. It should be understood that similar supporting stands and brackets -are used to support the spindles for wire 90 in the constant pitch machine although thesemeans are only shown in Fig. 8 of the drawingsl The operation in changing a wire on a paper machine embodying the principles ofrmy invention is as follows. When it becomes apparent that a new wire must be put on the machine, and preferably while the machine is still running with the old wire, a new wire 90 is strung up on the spindles 9L. 93 to 91 inclusive in any convenient manner wen known to those famiiier with this art. New Fourd'rlnier wires are ordinarily mounted on a plurality of spindles in the form in which'they are purchased and the wire is adapted to be unrolled by merely supporting one of the spindles in the position indicated by

spindles

94 or 96 and then unrolling theloop of the wire lengthwise of the machine. As the wire is unwound, other spindles are suspended from hooks, such as the hooks 92, to support the upper run of the new wire. Likewise, the spindlesv such as the spindle 93 are placed inside of the loop of the wire near the bottom there'of to hold the lowings thus providing within the loop suiiicient lower run lies above and clears the tracks y36am; 31. .Also said spindles serve to take' up the slack.'A in the new wire 90 and tighten it around the Thelower-run of the room for the entire framestructure and supported breast and couch rolls to be run into said -loop. Y,

After the new wire has been suspendedin the form of an open loop, ready to receive the frame structure, the paper machine' is then shut down and the old wire removed in any suitable fashion. Next, the breast'roll bearing sections are released and swung downwardly and the transfer mechanism I2 operated to move the breast roll- 6 *from its normal supported position into the l`suspended position indicated in dotted lines in Figures 2. In this position, the entire weight of the breastroll 6 is supported from the Fourdrinier frame structureon the arms I5. The forward set of vertical spring supporting members 8 is so arranged that the breast roll 6-in this suspended position will clear the Supporting members when the frame structure is moved out as a unit.

If the machine is of the constant pitch type shown in Figures 1 and 2,' the couch roll 9 may be raised by operation of the bolts 26 to clear the supporting pedestals 21, without any preliminary operation. However, if the Fourdrinier frame structure is adjustable as to. pitch, as shown in Figs. 8 and 9, the jacks 15 and 16 are first operated to lower the frame structure onto the tracks 11 `and 18 and to clear the tops of said jacks from the underside of the front side Abeam 2. The bolts 81 are then turned up to exert pressure against the underside of said side beams and thereby raise the couch roll I9 about the pivot pins 84,'to provide the necessary clearance 89 between the supporting members 8| and the pedestals 82. v

The movable rails 39 are next -pulled out into their extended position indicated in Figs. 3 and 5 in dotted lines.- As previously pointed out, clearance is provided above and below the movable rails 39 to permit the rails to be pulled out easily by hand/or by suitable power means. During this step, the movable railsvare, of course, supported by the upper set of rollers 41 and also,

toward the ends of their outward travel, ,by the lower set of rollers 50. In completely extended position, the movable rails 39 are supported at their free extremities upon the feet 55 of the permanent pedestals 56. As thus supported, the rails 39.1ie inside the loop of the new wire 90 and out of contact with the lower run of said Wire.

The motor 66 is then started up to drive the shaft 64 and roll the frame structure out over the permanent tracks 38 andthe-extended tracks 39. When the frame structureis in its fully removed position, lying inside of the loop. of the new wire 90 as indicated in dotted lines in Figure 3, the foreward sets of rollers restv directly upon the upper faces o f the pedestals 56, oi of the rails 39. Stops 98 are provided on y said pedestals 56 to prevent the rollers from moving beyond the supportingsurfaces of the pedestals 56. Further, the rollers at the rear side of the frame structure remain supported on the projecting ends ofthe stationary tracks 38, thereby leaving the movable tracks 39 free to be moved back into place in the line ofthe machine.

After the movable tracks have been moved back into the line of the machine, the temporary supportingspindles 9|, 94 to 91inclusive are removed and the spindles 93, or two of themare moved into positions 93e, (Figs. 4A and 4B) where they are supported in brackets on the undersid of the side beams 2 and 3. In thesepositions the spindles 93 support the wire 90 so that its prior art.

breast and couch rolls. new wire 90 is thereby brought into a position above the level of the tracks 38y and 39, so that the movable tracks 39 can now be lrimloutI again into their extended positions clear of the lower run of. the new wire.

The frame structure with the associated new wire is then-run back over the

tracks

38 and 39 into place in the operating line of the machine. The movable tracks 39 are moved into their normal position under the frame structure and the spindles 93a are Withdrawn from.v the brackets |00 to give `the necessary slack to permit the breast and couch rolls to be moved into normal position. The. couch roll I9 is lowered into .nor-y mal position by means of the operation of the bolts 264 or 81 and the breast roll transferred to possible a considerable. saving by increasing the" productive operating time of the machine. As previously pointed out, a very considerable portion of the time required to change a wire is consumed in unrolling the new wireland suspending it in the form of a loop. Since, according to my invention, the new wire can be suspended in looped form outside of the normal line Iof operation of the ,machine and while the machine is still operating, all of the time necessary for this single step is saved. K i

i In general, my method of suspendingy the loop of the new wire outside of the line of the machine and in a position such that the Fourdrinier frame structure as a unit may be moved laterally within it, is made possible by the novel con# struction and arrangement of the track vmembers and also by the provision of means for short-I ening the overal1` length ofthe frame structure by supporting the breast roll and couch roll directly from said structure in closer relationship to each other than they normally occupy. This novel arrangement` and construction, in only.

slightly modified form, also permit the same advantages to be obtained in the case of a Fourdrinier of adjustable pitch. y

It is obvious that in describing the present in; vention, standard andwell known constructions of Fourdrinier paper machines and'parts thereof.

invention. For instance, it is contemplated that A some suitable form of-,shaking mechanism will be associated with the table structure to shake the breast roll and tablel rails either together or separately,' and theA shaking :mechanismv may either be carried partly or'wholly by the table structure for removal therewith or may be removably connected thereto at suitable points.

I am aware that many changes may be made and numerous details of construction may be varied through a wide range without' departing from the principles of this invention, and I, therefore, do not4 purpose limiting the patent granted hereon otherwise than necessitated by the Il claim as my invention:

1. The method of stringing a new wire on a' laterally removable Fourdrinier paper machine, which comprises suspending a new wire in a loop at one side of the Fourdrinier table structure, moving said table structure laterally into said loop of wire, supporting said wire on said table. structure, tightening the wire. on the table structure and moving said table structure back into operating position in the machine with said wire supported thereon. I y

2. The method of changing the wire on a Fourdrinier paper making machine comprising stringying the wire in an open loop at one side of the machine, moving the machine table with its breast and couch rolls laterally into said loop, tightening the wire on the table around the breast and couch rolls and then moving the table with the wire thereon laterally back to its operative position.

3. The method of Stringing a new wire on a laterally removable vtype of Fourdrinier paper machine, which comprises suspending a new wire in an open loop alongside of the Fourdrinier ,frame structure, mounting the breast roll and couch roll on said frame structure in position closer than the operative positions thereof, moving said frame structure and supportedrolls as a unit into said loop of wire, tightening said wire on said frame structure around said rolls and replacing said frame structure in operative position in said machine.

4. The method of Stringing a new wire on a laterally removable type of Fourdrinier paper.

machine, which comprises suspending a new wire in an open loop alongside of the Fourdrinier table structure while the machine is still in operation, stopping the operation ofthe machine, removing the old wire therefrom, moving the table structure with the breast and couch rolls sup-E -erally removable Fourdrinier paper machine,

which comprises Stringing a wire an open loop alongside the table structure, supporting the breast roll and couch roll from the table struc- 'ture so as to reduce the overall length thereof,

moving said table structure out into the loop of wire with clearances therearound, tightening the wire on the table structure around said rolls while in removed position, moving said vtable structure with wire thereon back into operative.

position in said machine, loosening said Wire on said table structure and moving said breast and couch rolls into operating positions, thereby again tightening said wire. l

6. In a meth'od of Stringing a new wire on a paper machine of the laterally removable Fourdrinier type, the steps -which comprise suspending a new wire on temporary supports in an open l loop alongside of the Fourdrinier frame structure and transversely moving said frame structure in a shortened condition'entirely within said open lo'op.

'7. In a method of Stringing a new wire on a paper machine of the laterally removable Fourdrinier type, the steps which comprise suspend-v ing a new wire on temporary supports in an open s loop alongside of the Fourdrinier frame structure and transversely moving said frame structure in a shortened condition entirely within said open loop. and removing certain of said temporary supports and moving others of said supports into supported relation with respect to said frame structure to support said wire thereon.

8. In combination with a laterally removable 'type of Fourdrinier paper machine including a directly. on said tracks into the loop of the wire g `open loop of a wire alongside said machine to receive said table structure and associated rolls when theA same are moved laterally out of the line of the machine. i 1

10. In a removable and adjustable pitch Fourdrinier paper machine, a Fourdrinier frame structure, a breast roll and couch roll connected therewith, means supporting said breast roll independently of variations in the pitch of said frame structure, means for supporting said couch roll independently of the pitch 4of said frame structure, means for adjusting the pitch of said frame structure during operation of said machine and track means onto which said frame structure may be lowered by said adjusting means for lateral removal thereof.

11. In a removable and adjustable pitch Fourdrinier Vpaper machine, a Fourdrinier frame structure, a breastroll and couch roll associated therewith, means supporting said breast roll independently of variations in the ypitch of said frame structure, means for supporting said couch roll independently of the pitch of said frame structure, means for adjusting the pitch of said frame structure during operation of said machine, track means onto which said frame structure may be lowered by said adjusting means for lateral removal thereof, means for supporting said breast roll from said frame structure for lateral removal therewith and means for supporting said couch roll on said frame structure for lateral removaltherewith.

12. In a Fourdrinier and adjustable pitch Fourdrinier paper machine, a Fourdrinier frame structure, breast and couch rolls connected thereto and removable therewith as a unit, and means for adjustably supporting said frame structure for varying the vpitch thereof independently of saidbreast and couch roll connections.-A

13. In a removable and adjustable pitch Fourdrinier paper machine, a Fourdrinier frame structure, breast and couch rolls connected there- 'to and removable therewith as a unit, means for adiustably supporting/,said frame structure for varying the' pitch ,thereof independently of said breast and couch roll connections, and means for supporting said frame structure for rolling movement laterally of said machinewhen said adjustably supporting means are not supportingsaid lframe structure.

14. In a removable and adjustable pitch Fourdrinier paper machine, a Fourdrinier frame structure, breast and couch rolls connected thereto and removable therewith as a unit, means for adjustably supporting said frame structure for varying the pitch thereof independently of said breast and couch roll connections, and means for supporting said frame structure for rolling movement laterally of said machine when said adjustably supporting means are not supporting' said frame structure, said means including fixed and vlaterally extensible tracks and flxed supports for the extended free end s, of said extensible tracks lying outside of said machine. V

15. The combination with the table structure' of a removable Fourdrinier paper machine, 'of a couch roll, stationary means supporting said couch roll in operative position, and means normally connecting said couch roll and said table v Astructure operable to support said couch roll from said table structure during lateral removal there-` of.

16. The combination with the table structure of a removable Fourdrinier paper machine, ef aI couch roll, stationary means supporting said couch .roll in operative positiommembers pivotally mounted on said table structure and connectedto said couch roll and means' operable to move said members to support said couch roll from said table structure during lateral removal thereoi'. i

17. The combination with the table structure of va removable Fourdrinier paper machine, of a couch roll, stationary supporting means therefor, movable members connected to said table structure and to said couch roll,and operatively supporting said couch roll upon said stationary means and means for actuating said members to raise said couch roll from said stationary sup, porting means and to support said couch roll directly from said table structure for removal therewith. 18. The combination with the table structure,-

kof' a removable Fourdrinier paper machine, of

means operatively supporting said table structure, means for varying the pitch of said table structure, a couch roll and meansfor supporting said couch roll in operative'position independent of the pitch including members connected to said table structure for supporting said .couch roll directly therefrom during lateral removal of' said table structure.

.19. In a removable Fourdrinier paper machine, a table structure, a couch roll,.a support for said couch roll independent of said table structure and means associated with said table structure for lifting said couch roll from said support and` carrying said couch r'oll upon said table structureL for lateral removal therewith.

20. In a removable Fourdrinier a table structure,

paper machine,I a couch roll, a detachably connected d riving means therefor, a supportinde'- pendent of said table structure for said couchroll and means associated with said table structure for lifting said couch roll from said support when said driving means is detached, and carrying said couch roll upon said table structure for lateral removal therewith.

21. In combination, a laterally removable table structure, a couch roll, members pivotally mounted on said table structure and connected to said couchroll and means associated with said members to support said couch roll directly from said table structure for'lateral removal therewith as a unit.

22. In combination, a laterally removable table structure, means for varying the pitch thereof, a couch roll and means connecting said table structure and couch roll for holding said couch roll of said table .structure and for supporting said couch-roll from said table structure for lateral removal therewith.

23. In a laterally removable Fourdrinier paper machine, track members for supporting the Fourdrinier frame structure for lateral removal comprising fixed tracks extending transversely of the machine below the lower run of the wire in normal operating position, longer movable tracks laterally extensible of said machine in parallelism to said fixed tracks, and means for supporting said movable tracks for free movement, while the Fourdrinier frame structure is supported `on said fixed tracks.

24. In a. laterally removable Fourdrinier paper machine, track members for supporting the Fourdrinier frame structure for vlateral removal comprising fixed tracks extending transversely ofv the machine below the lower run of the wire in normal operating position, longer movable tracks laterally extensible of said machine in parallelism to said fixed tracks, means for supporting said movable tracks for free movement, while the Fourdrinier frame' structure is supportedon said fixed tracks, and means limiting the. out'ward movement of said movabRe tracks and forming a support for the extended ends thereof.

25. In a removable type Fourdrinier paper machine, track members for supporting the Four drinier-frame structure in the line/ of the machine and during lateral removal thereof comprising fixed tracks extending transversely below said frame structure and projecting beyond the same at the front side, movabletracks of greater length normally projecting beyond said frame structure at the rear 'side thereof'and means carried by said fixed tracks for supporting said movable tracks for free movement in parallelism to said fixed tracks.

' 26. In a removable type Fourdrinier paper machine, track members for supporting the Fourdrinier frame structure in the line of the machine and during lateral removal thereof comprising fixed tracks extending transversely 4'below said frame structure and projecting beyond the same at the front side, movable tracks of greater length normally projecting beyond said frame structure at the rear side thereof, means'carried by said fixed tracks for supporting said movable tracks for free movement in paralper and lower flanges and rollers supported in' spaced'relationand at varying levels and bearing against the inner surfaces of said upperand lower flanges of said movable tracks to v'support the same during movement laterally of said machine.

28. In a removable type Fourdrinier paper machine, track members comprising fixed tracks havingupper flanges, movable tracks'having upper and lower flanges provided with longitudinally extending grooves on the inner surfaces thereof and rollers supported in spaced relation and at varying levels andl extending into said grooves of said movable tracks to support the same during movement laterally of said machine.

29. In a removable type Fourdrinier paper machine, a laterally removable frame structure, roll- A supporting the same in the line of said machine,

an'd during rolling movement thereover, and movable tracks supported from said fixed tracks clear of said rollers to permit free extension thereof laterally of said machine.

' 30. In a removable type Fourdrnier paper machine, a laterally removable frame structure, rollers .carried on the underside thereof, fixed tracks extending transversely of said frame structure for supporting 'the same in the line of said machine and during rolling movement thereover, movable tracks of channel cross section and vrollers mounted from said fixed tracks in laterally and vertically spaced relation for bearing against jthe flanges of said movable tracks to support the same from said fixed tracks clear of said ilrst mentioned rollers to permit free. extension thereof laterally of said machine.l A 3l. In a removable type of Fourdrinier paper machine, a plurality of sets of tracks, each set comprising a pair of channel withI the ilanges thereof in spaced opposed relation and rollers carried by one of said tracks for supporting the other of said tracks through the ilanges thereof.

32.' In a removable type of Fourdrnier paper machine, a set of tracks comprising a pair of channel beams positioned with ytheir flanges in spaced opposed relation, one of said tracks being ilxed and theA other movable.

33. In a removable type of Fourdriner paper machine, a set of tracks comprising a pair of channely beams positioned with their flanges in spaced opposed relation, one of said tracks-being fixed and the otherk movable, and rollers carried by said fixed track 'and supporting said movable track through the flanges thereof.

34. In a removable type `of Fourdrinierpaper machine, a setv of tracks comprising a pair of channel beams positioned with theirflanges in spaced opposed relation, one of said tracks being fixedr and the other movable, and rollers carried by said fixed track and 4supporting said movable track through the flanges thereof, said movable track having longitudinally extending grooves along the inside of said flanges for receiving the faces of said rollers.

35. In ar removable type of Fourdrinier paper machine including at laterally'removable table structure, sets of tracks for supporting said table structure, each comprising a stationary track and a laterally movable track, means for supporting the extended end .of them-lovable track in removed position and having surfaces for supportingsaid table-structure independently of said 4movable track.

36. In a removable type ofzFourdrinier 'paper machine including a laterally removable table structure, sets of tracks below the table structure in normal operating position for supporting said table structure, each comprising a Y stationary track and a laterally movable track, means for supporting the extended end of the movable track in removed position and having surfaces for supporting said table structure independently or said movable track, and rollers for supporting said movable track in normal position and for supporting said movabletrack in cantilever position during lateral removal.

3,7. Ina removable type of Fourdrnier paper beams mounted machine, a table structure, ilxed tracks adapted to support said table structure when in operating position, movable tracks'extensible laterally of said machine and supports for the extended ends of said movable tracks having surfaces for supporting said table structure independentlyV of said movable tracks.

38, In a removable type of Fourdrnier paper machine, a table structure, means lfor adjustably supporting said table structure to vary the pitch thereof and track members including' permanent tracks for supporting said table structure inthe line of said machine and laterally extensible movable tracks for supporting said table structure during lateral removal thereof.`

39. In a removable type of Fourdrnier paper machine, a laterally removable table structure, permanent tracks for supporting said table struc yture in the line of said machine and xed means outside the line of said machine cooperating with said fixed tracks to support said table structure in laterally removed position.

40. In a removable type of Fourdrnier paper machine, a laterally removable table structure, permanent tracks for supporting said table structure in the line of said machine, fixed means outside the line of said'machine cooperating with said fixed tracks to support said table structure in laterally removed position, and movable tracks extensible laterally of said machine for partly supporting said table structure during lateral removal thereof. l l

41. In a removable type of Fourdrnier paper machine, a table structure, fixed tracks adapted to support said table: structure when in operating position, movable tracks extensible laterally of said machine, supports for the extended ends of said movable tracks having surfaces for supporting said table structure independently of said movable tracks, means for suspending an'open loop of a wire alongside said machine, and means for moving said table structure outA over said tracks into said open loop of wire to be supported therein by said fixed tracks and said supporting surfaces.

42. The method of stx-inging a new forming wire on a laterally removable Fourdrinier paper machine, which comprises suspending a new wire in a loop at one side of the Fourdrnier table structure, moving said table structure laterally at rightangles to the operating direction of the machine into said loop-of wire, supporting said wire on said table structure. and moving said table structure back into operating position in Y laterally removable type of Fourdrnier paper.

machine, which comprises suspending a new'wire in an open loop alongside of the Fourdrnier frame structure, mounting thexbreast'roll and couch roll on said frame structure in position closer than the operating positions thereof, moving said frame structure and supported rolls as' a unit laterally at right angles to the operating direction of the machine into 'said loop"of new wire, tightening `the wire on said .frame structure around said rolls, and replacing saidframe structure in operative position in the machine.

44. In a method of Stringing a new wire on a paper machine ot the laterally removable Fourdrinier type, the steps which comprise suspendlng a new wire on temporary supports in an open loop alongside of the Fourdrnier frame structure parallel with the operating position of the wire and moving said frame structure laterally at right angles to the operating direction of the machine entirely kwithin said open loop.

45. The method of changing the forming wire on a Fourdrinier type of paper machine having xed and laterally extensible tracks below the frame structure in normal operating position and xed supports alongside the frame Vstructure in spaced relation therefrom which comprises form ing an open loop ofthe new wire, extending the zmovable tracks into saidloop to join with said xed supports, moving the frame structure with the couch and breast rolls mounted thereon into the open loop of the` wire. supporting said frame structure on said xed supports, slidingl the movable tracks back into the normal operative line of the machine, tightening the loop on the frame structure so thatits lower run .is above the tracks, again extending the movable tracks to the fixed supports, rolling the frame structure with the newvwire thereon over said tracks back into operative position andv again sliding the movable tracks under the frame structure.

EARL E. BERRY.