US2185747A

US2185747A - Method and means for treating yarn

Info

Publication number: US2185747A
Application number: US174687A
Authority: US
Inventors: Ira L Griffin
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-11-15
Filing date: 1937-11-15
Publication date: 1940-01-02
Anticipated expiration: 1957-01-02

Description

Jan 2, 1940- y. L l.. GRIFFIN 2,185,747`

METHOD AND MEANS Fon TREAT'ING YARN v Filed Nov. 15, 195i 4 'sheets-sheet 1 Jan. 2, 1940- L. GRIFFIN a1-:Tann AND MEANS Fon 'HEATING YARN Filed Nov. Y15; 19:51 4 sheets-sheet 2 I ...FAQ .u :iE-mn..

Jan. 2, 1940. n l. GRIFFIN MET-HOD AND MEANS FOR TREATING YARN Filed Ndv. 15, 1937 4 sheets-sheet 3 ill, .lill

lNyEN-roe: IRA L16@ FF/N Patented Jan. 1940 1 fumi-rep Sm aisance mmonsnniimmsroawaiia'rnwraan 't i Yfinir.;ffii-nii; ,cuadrcula gft i e :Application Ncveiiijiieir iii, 1931, serial No, 134,081;

- .1 ricmmefiorzs-zsi A Y ',endsis well` knownl in the textile trade; therefore, 'f

vThis invention relates to' larmetl-iod; andmeans for drying yarn, andv more especlallyftcjj-that.

. method and meanswhich is adaptedsstojoperate --in conjunction witha sizing apparatuaj j plurality of yarnends ranging from a Vi'ew hundred to several thousand, 'are passed through a Q sizing box. lendsus'irel usually through in a composite sheet frornseveral warp 10 beams which .are placed in a creel. When they pass through the sizingbox, a1 suitable'sizing solution is deposited thereon, .vaiterewhichjit necessarytoidry thesarne. Y yIn order to more effectively dry the sheet 'oi 16 yarn, I propose to dividegthe"compositesheet into a plurality of layers of` a lesser number or,

sized warp ends.`. This maybe done by placing a lease string between the vsheets of yarn from the several'respective beams and maintaining the m identity through the `size box' and then dividing' the sheet by means of rollers .at diilerentpointsas Y it passes through a dryingchamber, This number vof divided sheets mayv bethe (same as the number of beam sheets originally comprising the `ggecomposite warp orl they maybe combined into groups o f two ori more.

t A`Heretoiore greatdiicul t in maintaining a. uniform tension -on all of -the dividedsheets `of yarn during the'vdrying oper-v 30 ation, Theoretically, the 'correct manner in which to separate the individuallayers Vv vo'uld be in such a manner that the length'of each in'dis vildual .layer or sheet between .the size box and the drying drum would be the same. In my present 1 '35 invention, I haveprovided aJsuitable drying compartment with; several sets.. of adjustably mounted rollers therein overs-lwhich thedndividual layers of the yarn areadapt'edto pass. 'The distance between :the yarn contact points on each set of' rollers is the sama, Since the apeijrollers are adjustable, thel length oi each layer"passing through the compartment can be varied in 'order to ,control the interval ottime 'that the layer will be disposed therein while the yarn is passingfrom' ential in' tension will' create a very ,undesirable i result due to' anuneven stretch in the maternal.'f `'.irhe disadvantages or an uneven stretch in' yarn' ty hasbeen experienced I it .passes over itis ',not deemed necessary'tofdiscussfthis ieature atthis time.` y l y l f Ylt is, thereioreganiobject'of this invention to provide a drying compartment dispedbetweenw I the sizebox and vthedrying canswith'means disposed in the drying compartment fordividing a composite sheet ofjsiz'ed material intoii; plurality of individual sheets,7 said dividing means being'so Y arranged wiimnfthe box `that,fiiheiengin of each v10,Y individual .divided Sheet Willbefiden'bical; th.; eby

eliminatinga diiierential`intension.'

' It is a-iurther object ofthisinvention topro-" vid-"a sizing' machine iii`l ccmbinauonfwiui n intermediate drying compartment of thejclass cle-.15 scribea'witii meansfdisposed therein forfuividing a composite sheetl ofsized "material into a vplu'-- lrality of individual sheets;- afurther means for simultaneously" varying the length of the;v sheets Y disposedfwithin the drying compartment alike gto amount asf theyv pass through ythe drying lcompertinent.` i y 't By the separation o!` the yarn and' partially dryingit beforeit reaches the drying cylinderfa isfiormed due io paruaieva'poraonsndu 7 consequently the yarn drymore easilyon the dryingcylinders. #For this reason', itis not necesj sary to maintain the steam at as great heatfinthe cylinders -as would otherwise be 'necesaryk Also when the yarn ispartially dried the evaporation so lon the dryingcyllnders will be minimizedand the condensate on the vhoodv thereabove Vwill 'be re- I duced.A y:Bythus'redu",ing `the condensate 'on the hood.,` the droppingvof the same onto the yarn its.'Y

eliminated;f` ,y UThis intermediateedrying compartment isvpal'f-y s ticularly useful on vslaiilieis which have worn 'dryingcylinders and cannot `have a normal steamf pressure.- "With the-yarnpartiallyfdried-before 40l viii-reaches the cylinder,A it is not neceesary'ior the f normal amount of heat to be. presentfin orderv to co pletely dry the yarn iis-would be the case wei-ethe yarn drawn directly -from andonto the'dryi'ns cylinder. l 45 Some oil the objects: ci thei'nvention having been stated, other objects will appear `as thedescription proceeds when taken in connection with the accompanying drawings-,ein which:

Figure 1 is a 4sldeijelevationotniy invention 60 with portions in ysection!iihown in conjunction'l withaslashenjv -4 g .t {lflgure is ya vertical sectional vlewtaken along the' cylinder bepracticall as Figure 4 is a vertical, sectional view taken along the line 4'4 in Figure 3;

Figure 5 is a sectional plan view taken along the line 5-5 in Figure 1;

5 Figure 6 is a sectional plan view taken along the line 5--5 in Figure 1;

Figure '1 is an isometric view showing the means for removably mounting the rollers in the lower portion of the drying compartment;

Figure 8 is a plan view taken along the line 8-8 in Figure 4, showing a portion of the heating unit;

Figure 9 is a vertical sectional detail view similar to the central portion of Figure 4, but show ing a slightly modiiled form of the invention;

Figure 10 is a sectional plan view taken along the line Ill-I0 in Figure 9;

Figure 11 is an isometric view of one of the Figure 13 is a view looking at the left-hand side of Figure 12; l e

Figure 14 is-a vertical sectional .view taken along the line |4|4 in Figure 13;`

Figure 15 is a vertical sectional detail view taken along the line |5|5 in Figure 13;

Figure 16 is a sectional plan view taken along" the line |5 |5 of Figure 13. f

Referringmore ,specifically to the drawings, the numeral l5 denotes suitable creel supports for rotatably supporting the ends of warp beams around which yarn is wound. When it is desired to treat the yarn, a Lplurality of such beams are placed in supports |0 and the individualv layers of each beam are merged into a single sheet. These sheets are drawn over rollers |2 and I3, beneath immersion rollers |4, which rollers are rotatably secured to sizing vat |5. The combined layersl are then drawn between squeeze rollers I5 yand |1 and then between dressing rollers I3 and I9, which rollers are likewise rotatably mounted i'n the size vat.

As heretofore stated, it is yvery desirable `to separate the composite sized sheet into a plurality oi' layers in order to more effectively dry the same and to prevent the warp ends from sticking or adhering one toanother when they are finally reunited and dried. In the drawings, I have shown this combined sheet divided into three-

layers

25, 25 and 21, and these layers are u adapted to pass into drying compartment 28 through

slots

29, 30 and 3|, respectively (see Figures 2 and 4). 'I'hese same layers then pass beneath

rollers

32, 33 and34 which have their ends rotatably supported by frames 35 of the 00 compartment 28. l

Eachoi.' the end frames 35 of the compartment 28 has a vertically disposed slot 35 therein, in which is mounted for vertical sliding movement a block 31, said block having the lower end oi' a 05 suitable threaded rcd 38 secured thereto, which,

in turn, penetrates the upper portion of the end frame 35.

Rotatably mounted in the blocks 31 are the ends` of rollers, 4| and 42 over which the 70

sheets

25, 25 and 21 pass after leaving the

rollers

32, 33 and 34.- Also removably mounted within the compartment 28 and at the same level as the

rollers

32, 33 and 34 is another-set of rollers namely 45, 48 and 41, which guide the sheets 25,A

ing chamber. A second set of slots 43, 49 and 50 are disposed in the sidewall of the compartment and adjacent the

rollers

45, 45 and 41 so that the layers of yarn may pass therethrough and onto a drying cylinder which is rotatably 6 mounted in framework 55.

After leaving the drying cylinder 55, the combined sheet of yarn passes over a second cylinder 51 from whence it passes beneath roller 58 and above roller 59 to a suitable take-upbeam, 10 not shown.` All `of the members 51, 58 -and 59 are supported in the framework.

It will be seen by referring to Figure 1, the manner in which the

rollers

32, 33, 34, 45, 45 and 41 have their ends removably secured in the l5 vend frames 35 of the drying compartment. This frame has a plurality of horizontally disposed slots 60 therein which are adapted to accommodate bearing blocks 5|, in which the ends of said rollers are mounted. When these blocks 5| lhave 20 been properly positioned within the slots. suitable set screws 52 are screwed home to securely fasten the blocks and rollers in proper position relative to end frame 35.

It'will also be noted that the rollers 40. 4| and 25 42 are likewise removably mounted within the compartment, since their ,endsy are adapted to fit into suitable open ended slots or bearing portions 31a of blocks 31 (see Figureii) The pur-V pose of making all of the rollers removable is to' B0 f facilitate the separation of the composite sheet into the desired number of individual layers.

'Ihe composite sheet is nrst drawn through the drying compartmentin a'single sheet and then the properv division is made 'according to 35 previously inserted lease threads and the rollers inserted at the proper points. 'I'he rollers 40, 4| and 42 are lowered to substantially the same level as the

rollers

32, 33,

v

34, 45, 45 and 41 so that lthe proper division can be made without producing 40 any tension upon the individual layers.

It will be further noted by referring to Figures 2 and 4 that the side walls of the compartment 28 have plates 54 removably ysecured thereon by means of suitable screws 54o, between whichthe ,45

has been made, that is when the rollers are placed 50" at the proper positions, the plates 54 may be repositioned upon the opposed side walls ofthe compartmentso that the heat therein `wil-I be prevented from escaping.

The compartment 23 yhas suitable troughs 28av 55 v disposed `on opposedside walls and directly above the slots 29 and 43. troughs collect any condensation which might have accumulated upon the iside walls of the compartment'and conduct this condensate to the side. By thus 50 conductingthe condensate, it is not .allowed to fall upon the layers of yarn as they passthrough the drying chamber. To allow the condensate to drop upon the layers of yarn would spot the same and produce a defective product., The rollers 05 within the drying compartment vhave their ends l tapered' softhat they may be easily inserted between the layers when a leaseis fornnad.V .Also` these rollers are cf a yhollow construction.theereby cutting down the weight of the same.

The upper ends of the rods 38 are threadably mounted in suitable gears 51 which in turn are rotatably mounted in bearings 35 on the top of the compartment. These gears'are adapted to mesh with suitable worms 53, said worms being 15 iixedly secured upon a transversely disposed shaft 10. 'I'his shait is'likewise mounted in bearings 68 andhas hand wheels 1| flxedly secured on each end thereof which may be turned when itis desired to raise or lower the threaded 1 rods'38 and the rollers 40, 4| and 42.

The end walls of the compartment 28 are provided with doors 15 which may be opened when it is desired to remove or insert any of- Each of these doors is held in a the rollers. closed position bymeans of a suitable latch 16 which is adapted to engage projection 11 extending from the interior of the compartment. A

heating unit 18 is disposed in the lowerv portion of the compartment 28 in which is mounted y a continuous coiled pipo 19. This pipe is adapted to have steam or some other suitable heating.

agent circulating therethrough so'that the proper heat will'be furnished to the

layers

25, 26 and 21 as they pass through the upper portion ol the compartment 28,

In order-to force this heat upwardly andl away from the coiledpipe 19, a suitable duct 80 f from the pipe 93 through suitable exibie tubes has been provided which duct has one end thereof connected to the lower portion ofthe heatingv unit -18 Aand its other end connected to the"ex' haust side of a suitable fan 8|. By observing Figures 2 and V3 it will be seen that this duct, has suitable divergent plates 82 disposed therein so that the air will be properly distributed throughout the lower portion of the heating compartment and therefore I direct substantially an Another duct 84 has one end thereoi' secured to the upper portion of the compartment and its other end is connected to a suitable pipe 85,

said pipe 85 being adapted to communicate with This pipe 86 is adapted to the outlet pipe 86. carry o the vapors collected by the hood 81 from the drying drum 55.

Special attention is called to the position thatj the

rollers

32, 33, 34, 45, 46 and 41 occupy relative to the rollers A40, 4|, Yand42.

Therollers

32, 33, 34,'45, 46 and 41 are mounted in-a sta.-

tionary position and at substantially the sameA n But the rollers 40, 4I and 42 may be ymentioned lengths. `In other words,

L thev rollers

32, 40 and 45 form an isosceles triangle which is identical to the triangle formed by rollers 33, 4|, and 46 or the rollers 34, '42and 41; and these triangles will remain identical to each other re' remain the same.

The length of the top layer of yarn between roller 45 and the drying cylinder` isless than the length of the second layer between roller 46 and the cylinder 55, and the length of kthe third layer between rollery 41 and the cylinder 55 isn still more. Therefore, when the apparatus is first threaded, compensation must'be' made at the take-up roll of the Slasher, This compensa- ]l tion causes a scattering of defects suchv as hard n equal amount of air through all portions of'unit 18. f

of yarn, as all of the layers |09. gardless of the position occupied by the rollers 40, 4| and 42. Thereiorewe mast conclude that since the length of the layersf25, 26 and 21 while j disposed within the compartment 28 are always equal, the 'tension of each individual layer wil wardlyv extending lever 5 spring ||1 normally forces the lever I2 and its associated damper |08 to the position shown, that is', when no air is admittedy intothemotor on the take-up roll.

It may be necessary to vary the'elevation of the rollers 40, 4| and 42-in order to vary this length, because" somesheets of'yarn must be dried more than others.

When desired, a suitable lubricant may be applied to the individual layers, 25,r 26 and 21 while in a separated form. II-have secured a.y suitable lubricant supply tank 90 in the, lower portion of the. compartment 28 andV near one Vend thereof. `This tank is disposed above the heating unit 18v vso that a uniform viscosity of the lubricant may he maintained at all times. Leading from thisvtank is a suitable pipe 9| Lwhich supplies a lubricant toY nozzlesy 92, said nozzles 92 having an yair supply-line l93parallel thereto for'supplying compressed air to the nozzles so -as to breakup or atomize the lubricant and at thev same time draw the lubricant from the tank 90.v The nozzles v92 receive their air 94.

Supply vpipes

95 and 96 lead from the lubrivcant supply pipe' 9|,said

pipes

95 and 96 being supply-pipes 99 and |00, respectively parallel thereto for supplying lubricant toxthese nozzles.

'Suitable iiexible connecting pipes or tubes |0| and |02 connect pipe 99 to nozzle 91 and-pipe. toy nozzle 98 to furnish the necessary air to atomize the lubricant as it passes'through the nozzles and to force it onto the layers125, 26

and 21. f

Although I have shown means for spraying the lubricant vupon the layersy of yarn rwithin the compartment, it is to` be understood that this lubricant may be placed in the size box 5, in

Amany instances and obtain good results ascompared to spraying the Lyarn while passing through the compartment. v

As long as an equal tensionislmaintained on the individual layers during thisl intermediate drying operation,ran equal amountv of stretch will be obtained,resulting in a uniformv package are woundupon a single warp beam. j l x Means have also been provided whereby the temperaturel withinthe compartment mayl be automatically maintained vat a uniform or predetermined point. In'orderxto eiiect this automatic means for regulating the temperature, a suitable cold air duct |05 communicates with one side .of the compartment .28 at a point disposed above the heating unit 19. f This duct has a suitable pipe` |01 secured to its other end in which a damperl |09 is pivotallyrmountemsat An arm I0 is secured to pivot |09 saidarm having it lowerf end pivotally secured to a link which in turn is pivoted-to the lower end oi' operating lever I|2. The lever ||2 ispivoted Vas at ||3-to a bracket ||4 and this lever isoper- 'ated by means of a suitable diaphragm motor H5, mounted on this same bracket. Extending from the motor is'arod ||6owhoseend is pivoted to the intermediate portion .of the down- ||5. yWhen the heat drops belowa predetermined temperature within thecompartment-N then air is introduced within the diaphragm mol2. A, compression f tor H to cause the lever ||2 to rotate in a counter-clockwise manner from the position shown and thereby rotate the damper |08 to prevent cold air from being introduced up through pipe |01, duct |05 and into the lower portion of the compartment 28.

The tube |22 is also connected to a vertically disposed shaft |23 upon which a lever |24 is iixedly mounted. Secured between the free end of this lever and a iiapper leaf |25 is a link |28. This leaf is adapted to close nozzle |21 when the temperature reaches a predetermined high point within the housing 28. Air is supplied to this nozzle by means of a tube |29 which tube has forks |28a and |23b, the fork |29a being adapted to communicate with reducing valve whereas the fork |29b communicates with diaphragm |3|. Leading from the lower portion of pressure reducing valve |30 is a tube |34. This tube has its other end connected to a suitable bore |35, said bore being adapted to communicate with air supply pipes |36, which have air strainers |3541. therein. The upper end of the bore has communicating therewith an adjustable valve seat |38 said valve seat being adapted to be contacted by valve cap |39. This valve cap is disposed on a suitable rod |40, which in turn is secured to the diaphragm |3|.l The valve cap |39 is located in the upper portion of bore |45 and the lower end of this bore communicates with pipe |45 which leads to the diaphragm motor H5.

The operating air enters through the pipe |36 and passes through bores |35, adjustable valve seat |38, bore |45, and to the diaphragm motor ||5, which when operated will cause the lever ||2 to rotate in a counter-clockwise manner in Figure 1 to close the damper |08 and prevent the cold air from being introduced into compartment 28. When the temperaturehas reacheda predetermined high point and it is desired to operate the damper |08 to allow cold airto enter, the gas or vapor pressure in the bulb |20 transmitted through the tubing |2| unwinds the helical tube |22. This motion is transmitted by a link |26 to the flapper valve or leaf |25. When the control temperature is reached, this valve covers the orice of the nozzle |21 and prevents the further escape of air at this point, causing a pressure to build up in the diaphragmv |3|. This diaphragm expands under pressure, and when expanded it -will move to the right and cover seat |88. This motion unseats the cap |33 from seat |88a and seats it at |38, and cuts oil' the air to the diaphragmmotor I5 at which time the air in the motor ||5 will leak out `through pipe |43 bore |45 and around rod |40 into space. quently, the spring ||1'wil1 cause the damper |08 to return to normal open position as shown.

The temperature then begins to drop. The gas from port |45 to the diaphragm motor ||5 to close the damper |08.

Brieiiythe operation is asfollows: When pren determined high temperature is reached 'in com- Consek partment 28, the vapor pressure in bulb |20 causes the tube |22 to expand and unwind, and thus close oriice |21; diaphragm |3| is expanded which stops flow of operating air through bores |35 and |45, air is released from diaphragm motor 5 and spring ||1 then forces damper |08 to normal open position to admit cold air to compartment 28 through pipe |01. When a predetermined lowtemperature is reached, the tube |22 is contracted, orifice |21 is opened thus allowing diaphragm |3| to contact and place cap |39 on seat 38a; operating air enters motor ||5 pulling rod |6 to the right and rotating the damper |08 transversely of the side |01 to cut off the flow of cold air into vcompartment 28 through pipe 01. l

Figures 9, 10 and 11 show a slightly modified form of the invention, in which like reference characters will apply to like parts, and a description will be made of the parts which differ from those of the preceding form. It will be noted that the

bottom rollers

32, 33, 34, 45, 48 and 41 are adjustablefin a horizontal plane so that a greater spread may be obtained between the layers of

yarn

25, 26 and 21. The rollers 40, 4| and 42 are mounted in an identical manner as in the preceding form. The bottom rollers are made adjustable by means of suitable slots |50 which are cut in each end frame 35 of thevcompartment 28. In each of these slots a suitable block |5| is slidably mounted, said block having rotatably secured in one side thereof the endof a threaded screw |52. lThis screw is threadably secured in the end frame 35 of the compartment and when it is desired to vary the horizontal position of the blocks within the slots |50 the head portion |53 of the threaded screw |52 is turned. These blocks have suitable slots |54 c'ut therein in which bearing blocks |55 are adapted to be removably secured by any suitablemeans such as set screws |56. Each of the bearing blocks |55 has a hole |51 therein for the accommodation of theends of the rollers which are disposed in the lower portion of the compartment.

Although it is not possible to maintain exactly the same tension cn each individual layer `when using this formof the invention unless the

rollers

32,33 and 34 lie in a plane parallel to a plane occupied by the

rollers

45, 46 and 41, it is very desirable nevertheless to have this adjustable feature, especially where a greater spread is desired between the layers and the difference of tension between the individual layers is not so important. By providing these adjustable rollers it is seen that they may be placed in almost any desired position relative to each other, thereby providing a greater or a lesser distance between the individual layers of. the warp while within the drying compartment..

It is, therefore, seen that I have provided a method and a kmeans for drying yarn and applying` a lubricant if desired, which will enable one to draw a plurality of layers of yarn through a drying compartment and at the same time, direct the yarn out of its general direction of travel so that a greater length will be disposed within the compartment and be subjected to a greater period of drying time. `Also I have provided an apparatus which will provide for the variation of the length of yarn ofthe individual layers while passing throughthe drying compartment, without producing a diiferential in the tension between the individual layers.

Figures 12 to 16, inclusive, show a slightly modied form of the invention, in which a clamping means is employed for the individual layers or sheets of

yarn

25, 26 and 21. After all oi' the yarn from a set of warp beams has been drawn ends of another set of warp beams to the trailing ends of the preceding set. In other words, upon the exhaustion of the yarn from one set of warp beams, another set is placed in their stead, and the leading ends of this new set are tied onto the corresponding trailing ends of the exhausted set. The most convenient place for eifecting this tying-in operation is prior to thev entrance of the yarn into the drying chamber 28. By so tying these ends in at this point, the rethreading of the yarn through the drying chamber 28 and the remaining parts of the machine is eliminated.

Before this tying operation is eiected, however, it is desirable to clamp the trailing ends of the

sheets

25, 26 and 21 in xed position before they pass the squeeze rolls |9. Therefore, I have provided a plurality of stationary jaws |60, |6| and |62 directly below the point where the sheets of

yarn

25, 26 and 21 enter the drying chamber 28. The jaws are integral with plates |63, |64 and |65, respectively, said plates being flxedly secured to the exterior side wall of the chamber 28 by any suitable means such asscrews |66. These plates are spaced apart so as to provide

slots

29, 30 and 3| as in the preceding form, through which the

layers

25, 26 and 21 are adapted to pass prior to entering the chamber 26.

It will be noted that the stationaryjaws |60, |6| and |62 are disposed on the lower side of the

slots

29, 30 and 3|, the upper edge of said jaws being flush with the lower edge of said slots.

Disposed directly above the jaws |60, |6| and |62 are shafts |68, |69 and |10, respectively.-

necessary to lower the shafts |68, |69 and |10A until they rest on the stationary jaws |60, |6| and |62, respectively. When in this position, the

sheets

25, 26 and 21 will be clamped.

Each of the blocks |1| has the lower end of a threaded rod |15 rotatably mounted therein, said rods extending upwardly and being adapted to loosely penetrate a bracket |16 which in turn is secured to the side wall of chamber 28 (see Figure 15). Each of the brackets |16 has a pinion |11 mounted therein said pinion being threadably secured around the intermediate portion of rod |15. 'Ihis pinion is adapted tormesh with a worm |18 which in turn is ixedly secured on transversely disposed shaft |19. The shaft |19 is also rotatably mounted in the brackets |16. Fixedly secured on each end of the shaft |19 is a hand wheel which is turned by the operator when it is desired to raise or lower the blocks |1| and their associated shafts |68, |69

and |10 to clamp or release the

sheets

25, 26 and 21.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although speciiic termsV are employed, they are used in a generic and descriptive sense only, and not for the purposes of limitation the scope of the invention being set forth in the appended claims. l

I claim: l

1. Apparatus for treating warp. yarn comprising a sizing machine having a size box anda series of heated drums for drying the warp yarn after it has passed through the size box, means for partially drying the yarn before it reaches the heated drums comprising a casing disposed between the size box and the heated drums, means forheating the interior of the casing, and means within the casing vfor splitting the sheet of warp yarn into a plurality of sheets while it passes through said compartment on its way fromP the size box to the heated drums.'A

`2. In combination, a slasher having a size box and at least one drying drum and having a creel for supporting a plurality of warp beams from which the warp is Withdrawn and/passed in a single sheet through thesize box, a drying compartment disposed between the size box and the drying drum, means in the drying compartment for dividing the sheet of warp into a plurality of spaced sheets and holding the spaced sheets in spaced relation while they are passing through the compartment, and means for automatically regulating the temperature within the compartment.

3. In combination,a slasher having a size box and a drying drum, means for guiding warp yarn from a plurality of warp beams through the size box, means for dividing the warp after it has been passed through the size box into a plurality of spacedv layers, a casing surrounding the said spaced layers of yarn, means for heating the interior of said compartment and means for vary-V ing the/length of the spaced layers of yarn inv said casing.

- 4. The combination of aslasher having a size box and a drying cylinder, a plurality of spaced rollers for forming the sheet of sized warp after it leaves the size box'into a plurality of superposed layers, a casing surrounding said layers and means for supplying heat to the interior of the casing to partially dry the yarn on its travel to the drying cylinder.

5. In a slasher apparatus having a size box vthrough which a sheet of warp yarn is adapted to be passed and a drying cylinder over which the sized yarn is adapted to be passed to dry the same, a casing disposed betweenthe size-box and the drying cylinder through which the sized yarn is passed, a series of rollers in said casing for forming sheds in said warp, and heating means disposed in said casing fory partially drying the yarnas it passes through said casing.

6. Apparatus for drying yarn on its travel from the size box to the drying cylinders of a slasher, comprising a casing provided with a plurality of superposed horizontally disposed slots on opposed sides thereof, a plurality of rollers disposed inside the casing adjacent said slots for forming sheds yarn comprising a casing having a plurality of slots in opposed sides, a roller associated with each slot, a plurality of rollers disposed one above the other centrally of the casing and at a higher u j 70 and the drying cylinders for drying sized sheet point in the casing than the other rollers, whereby the yarn can be formed into a plurality of sheets and conducted into said casing while wet with size and upwardly over the last-named rollers and then downwardly past the other rollers, and means for heating the interior of the casing while the yarn is being passed therethrough.

8. In a slasher having a size box and drying cylinders, apparatus disposed between the size box and the drying cylinders tor drying sized sheet yarn comprising a casing having a plurality of slots in opposed sides, a roller associated with each slot, a plurality of rollers disposed one above the other centrally of the casing and at a higher point in the casing than the other rollers, whereby the yarn can be formed into a plurality of sheets and conducted into said casing and upwardly over the last-named rollers and then downwardly past the other rollers, means for heating the interior of the casing while the yarn is being passed therethrough, and means for adiusting the said centrally disposed rollers vertically in the casing to thereby regulate the total length of yarnl in the casing at a time.

9. That method of treating yarn in a slashing operation which comprises applying a controlled amount of lubricant to a sheet of yarn while wet with size, while passing the sheet of yarn through a closed, heated compartment after it emerges from a sizing box,

10. That method oi treating a sheet of warp yarn while it passes from a size box in a slasher to the drying cylinders which comprises passing the sheet of yarn through a heated casing, dividing the sheet of yarn into a plurality of layers while it passes through the casing, applying lubricant to the yarn while it is passing through the casing and then passing the yarn over a drying cylinder in a sizing machine to nally dry the same.

11. Apparatus for treating warp yarn comprising a sizing machine having a size box and a series of heated drums for drying the warp yarn after it has passed through the size box, a compartment disposed between the size box and the heated drums, means for heating the interior of the compartment, means within the compartment for splitting the sheet of warp yarn into a plurality of sheets while it passes through said compartment on its way from the size box to the heated drums, and means disposed between the size box `and the compartment for clamping the yarn when it is desired to tie in a new set of ends.

12. In combination, a slasher having a size box and at least one drying drum and having a creel for supporting a plurality of warp beams from which thewarp is withdrawn and passed in a single sheet through the size box, a drying compartment disposed between the size box and the drying drum, means in the drying compartment for dividing the sheet oi warp into a plurality of spaced sheets and holding the spaced sheets in spaced relation while they are passing through the compartment, means for automatically regulating the temperature within the compartment, and means disposed between the size box and the compartment for clamping the yarn when it is desired to tie in a new set of ends.

13. In combination, a slasher having a size box and a drying drum, means for guiding warp yarn from a plurality of warp beams through the size box, means for dividing the warp after it has been passed through the size box into a plurality of spaced layers, a casing surrounding the said spaced layers of yarn, means for heating the interior of said casing, and means for varying the length of the spaced layers of yarn in said casing, and means disposed between the size box and the casing for clamping the yarn when it is desired to tie in a new set of ends.

14. The combination of a slasher having a size box and a drying cylinder, a plurality of spaced rollers for forming the sheet of sized warp after it leaves the size box into a plurality of superposed layers, a casing surrounding said layers, means for supplying heat to the interior of the casing to partially dry the yarn on its travel to the drying cylinder, and means disposed between the size box and the casing for clamping the yarn when it is desired to tie in a new set of ends.

15. In a slashing apparatus having a size box through which a sheet of warp yarn is adapted to be passed and a drying cylinder over which the sized yarn is adapted to be passed to dry the same, a casing disposed between the size box and the drying cylinder through which the sized yarn is passed, a series of rollers in said casing for forming sheds in said warp, heating means disposed in said casing for partially drying the yarn vas it passes through said casing, and means disposed between the size box and the casing for clamping the yarn when it is desired to tie in a new set of ends.

16. In a slasher having a size box and drying cylinders, apparatus for drying yarn on its travel from the size box to the drying cylinders of a Slasher, comprising a easing provided with a plurality of superposed horizontally disposed slots on opposed sides thereof, a plurality of rollers disposed inside the casing adjacent said slots for forming sheds in the yarn, a plurality of other rollers disposed above said first rollers in said casing and over which the sheets of yarn formed by said sheds are adapted to pass to thereby increase the total length of yarn in the casing, heating means disposed in said casing, and means disposed between the size box and the casing for clamping the yarn when it is desired to tie in a new s'et of ends.

17. In a slasher having a size box and drying cylinders, apparatus for drying sized sheet yarn comprising a casing having a plurality of slots in opposed sides, a roller associated with each slot, a plurality of rollers disposed one above the other centrally of the casing, and at a higher point in the casing than the other rollers, whereby the yarn can be formed into a plurality of sheets and conducted into said casing and upwardly over the last-named rollers and then downwardly past the other rollers, means for heating the interior of the casing While the yarn is being passed therethrough, and means for automatically maintaining a predetermined temperature in the casing.

IRA L. GRIF'FlN.