US1630197A - Method for use in the manufacture of artificial silks - Google Patents

Description

16301-97 May 24 1927' D., A. MgKENzlE "i METHOD `FOR USE IN MQNUFACTURE QF v,AR'I'IFIGIAJI SILKS Fil'ed Dec. 2.8. 1923 3 Sheets-Sheet 1 INVENTOR ATTORNEYS May 24, 1921.

1,630,197 D. A. MGKENZIE METHOD FOR USE IN THE NANUFACTURE 0F ARTIFICIAL SILKS s sheets-sheet 2 INVENTOR DON/QLD f7. Mc KE/vz 'IE www ATTORNEYS 1,630,197 D. A. MCKENZIE METHOD FOR USE IN THE MANUFACTURE 0F ARTIFICIAL' SILKS May 24, 1927.

-l Filed Dec. 28. 1925 I 3 Sheets-Sheet 3 INVENTOR Tuo/vnu; f7. Mc KEN2 /E ATTORNEYS i Patented May 24, 1927.

UNITED STATES PATENT OFFICE;

noNALD A. MOKENZTE', or swanrHMoaE, rmmsmivaNIA; AssieNon 'ro 'rms vrs-' COSE COMPANY, OF MARCUS HOOK, DELAWARE, A CORPORATION OF PIILN'N'SYI'J-` VANIA.

METHOD FOR USE IN :THE MANUFACTURE OF ARTIFICIAL SILKE.

Application nled December 28, 1923. Serial No. 683,213.

My invention relates to a method for use in the manufacture of artificial silks.v The object of my invention is to simplify and facilitate the'washing and subsequent operations upon the fiber after it leaves the spin- In the manufacture of artificial' silk and the like, it is the customary practice to lead the thread from the setting bath, over guide rollers or godets to a rapidly rotating spinning box, within which the thread is twisted, and coiled or built up into what is commonly known in the art as a fiber cake. Apparatus .for this purpose is illustrated in the Clay- My invention eliminates the danger of injury incident to skeining and other delicate handling operations, by maintainingr the fiber cake intact, and facilitating the handling thereof during the Washing and at least some of the subsequent manufacturing steps. To this end my invention contemplates the doling of 'the fiber cake from the spinning box upou a suitable carrier, on Which it rcmains during the setting up period. and by which it 1s carried during the'washing and' such subsequent steps as may be desirable.

Y The washing step is preferably `carried out itma by sprayingvthe Wash Water or the like against the inner periphery of the cake, the ylatter being rotated at sufficient speed to causeA the Wash liquid to permeate and be i discharged from the'fiber cake by centrifual force.

Then the fiber cake has been thus washed, be rotated or ,whizzed for a brief `perio to lremove the free moisture by centrifugal force from the interior of the cake. It. is then lifted on its carrier from the v Washing rotor and transferred, still on its ent position;

carrier, to the drying chamber or stove,

Where it is subjected to the drying step-While the liber is still in the cake form.

In its Washed and dried condition the liber now possesses considerably greater mechanical strength, and may be handled withoutv great danger of injury. If desired, it may now be skeined, and subjected, in skein form, to the usual further treatments which are common in this art.v My invention, however, contemplates the carrying out of at' least some of these further steps whilethe i iber cake is still maintained in its original condition.

A simple and appropriate carrier upon which the ber cake may be doled from theI spinning box, and by which it may be. supported during its treatment in cake form, is

illust-rated in the accompanying drawings, i

in Whichl Fig. 1 is abroken plan of a fiber cake and i a cooperating washing appliance;

Fig. 2 is a section onthe line 2 2, Fig. 1; Fig. 3 is a. shown in Fig. 1, but with the parts in differ- Fig. 4 is a rotor alone;

Fig. 5 is an inverted broken plan thereof;

Fig. 6 is a diagrammatic plan view illustrating the operation of the Washer;

Fig. 7 is a broken plan of a modified construction; and

In'the form illustrated' in Figs. 1-5, the carrier comprises a base plate 5 apertured at 6 for ventilation and lightness, and at 7 to afford a bearing for the ollset lower ends 8 of the centering and gripping bars 9. At its center the plate 5 is apertured to pass over a rotary tubular standard 10 perforated `at appropriate points 11, the perforations v preferably being rathersmall. Fitting over the upper end of the standard 10 is a second bearing plate 12, the offset collar 13 of which snugly fits the standard. The plate 12 is appropriatelypierced at 14 (Fig. 1) in register Withthe apertures 7 in plate 5 to receive the upper offset ends 15 of the bars 9. v

Overlying the base plate 5 is al bar shifting disk 16 centrally a ertured to snugly fit the base plate collar 1 and resting at its plan view of the apparatus broken side elevation of the Fig. 8 is a vertical section therethrough.

- base plate 5 and the shiftin outer periphery upon the mar mal flange 18' of the base late which is em raced bythe down-turne marginal flange 19 of the disk 16. The latter is held in swivelling relation to the base plate 5 by lugs 20 offset from the flange 19 and extending. beneath the base plate'. The bar shifting disk 16 is slotted at 21 for ventilation and lightness, and also at 22 to accommodate the bars 9 which pass therethrough, the lower offset reaches 23 of the bars lying between the j disk 16. It is obvious that if the base p ate 5 be held stationary, the rotation of the disk 16 with relation thereto will cause the bars 9 to swing inwardly or outwardly on their axes 8-15, and to play inwardly or outwardly 1n the slots 22 in the shifting disk, '16, depending upon the direction of rotation of the latter.

To cooperate with the carrier and to cause the same'to bodily rotate during the washing or other step of treatment, I provlde la vert-ical rotary spindle 24, having at its upper end a rigid hub 25, in the upper supporting face of which pockets 26 are formed for the reception of the offset lower ends 8 of the gripping bars 9. When the carrier is'positioned upon the hub, the'ends 8 of the bars 9 form in effect clutch studs, through which the driving connection between the hub 25 and the cake carrier is eiiected. The tubular standard 10 over which the carrier plates pass, is fast with the hub and rotates therewith and with the carrier. p

In order to locate the gripping bars 9 in proper position for the receptlon of the liber cake when the latter is dotted from the spinbox to the carrier, the disk 16 is rotated Witliy -respect to the base plate 5 to cause the bars 9 to swing inwardly toward the axis of the carrier. The fiber cake, diagrammatically indicated at 27, is then dofed upon the disk 16 and the latter rotated with respect to the base plate 5, thus causing the bars 9 to move outward into engagement with the inner periphery of the liber cake. The d1- rection of the rotat-ion of the disk 16 with reference to the base plate 5 to cause the outward swing ofthe bars on their crank'a-rms, is the same as that which it takes as a result of its inertia and that of its supported mass during the drive of the spindle 24. This direction of rotation may be readily assured by so limiting the radial length of the slot 22 that the bars 9 are prevented from swinging over-center. Consequently, when the spindle is rotated, both inertia and centrifugal action combine to swing the gripping bars 9 outwardly against the inner periphery of the fiber cake. rl`he latter is thus firmly gripped around its axis, or since the axis of the'cake trifugal brce.

when positioned on the-carrier may not be 4precisely coincident with the axis of the spindle, stresses may be Iset up when the car- A rier is rotated, which tend to colla se the vfort of whichis so exerted as to overcome these unbalanced stresses. This may be accomplished in many ways. 'It may be attained, for example, by means -of the bell crank arms 28 pivotcd on the hub 25 and rovided attheir free ends with weights 29. ugs 30 project downward from the flange 19 of the disk 16 into kthe path of the arms 28, and are so located that the thrust of the arms aga-inst them, under the action of cen-4 trifugal force, is in a direction to rotate the disk 16 in thedirection to expand the cage and cause the gripping arms 9 to move outward against the inner wall of the cake.v

. Since the arms 28 are carried by the hubV 25, some means must be provided to so locate the carrier with respect to the hub 25 that the lugs 30 are properly positioned for engagement by the centrifugal arms 28. For this purpose one or more lugs 3l may be struck inward from the collar 13 to enter notches 32 in the upper margin of the rotor standard 10.- v

Furthermore, since the centrifugal arms 28 must be swung inward in order to insure their proper position with' respect to the lugs 30 onthe disk when the cage is placed on the rotor in collapsed condition (Fig. 3), some means are preferably provided to draw the arms 28 automatically inward toward the hub 25. In the construction shown the bearing ends 33-and 34 of the centrifugal arms are passed downward through the hub 25, each provided at its lower end with a pin 35 which is engaged by one end of a light sprin 36 anchored to the hub at its other end 3%'. The eiort of the spring 36 is sufficient to swing the arm inward towardvthe hub, but has no apprzjihble effect upon the efort of the arms un er the action of cen- The wash liquid may be applied in any suitable way to the inner periphery of the fiber cake. I have illustrated an independent supply pipe 38 which is passed down into the standard 10, and is'provided with a series of lateral apertures 39 through which the wash water is dschargedagainst the inner face of the rotating standard, 10. It passes through the apertures 11 in the latter and is dispersed in the form of a fine spray against the inner face of the fiber cake. The direction of the jets is indicated in the diagrani,'Fig. 6. As will he noted, theeliquid emerges ina radial spray from the central feed pipe 38 and impinges against the inner wall 'of the rotary standard 10. Passing uid is discharged inl a whirling mist-like spray which .bodilyl rotates in the same direction as the fiber' cake 27 against the inner face of which the spray impinges. By reason ofthe fact that the spray is whirling in the same direction'as the fiber cake, a violent impingement of the jets against the fiber of the cake-is prevented. On the contrary,

the spray beats lightly against the inner periphery of the cake, without injury to the fibers. is thrown off radially in all directions. It is customary to pass `the spindles 24 up through the bottom of `a box, or side by side in a trough, (where a group of washers operates at the same time) and thus, confine" the liquid, which is discharged'by an overflow or drainage outlet. -The acid carried into the fiber cake from the setting bath is`r taken up by the wash water which permeates the cake by centrifugal force, and is discharged with the waterfrom the trough or box (not shown).

When the washingl operation is completed the supply of wash water is cut off from-the jet tube 38, and the rotation of the spindle 24 continued fora brief lperiod 1n order to l` throw off' the wash water contained in the cake.' The spindle is then halted, the jet tube 38 removed, and the ca rrier bodily lifted from the driving hub 25 of the spindle and-transferred with the washed fiber ca ke to the drying chamber or other apparatus vfor this purpose. l

`Aften drying or stoving, 1the carrier, with the fiber cake still undisturbed thereon, may be transferred to the skeining machine. 'I prefer, however, to still maintain the fiber cake undisturbed on the carrier and to subject it to such further chemical action as may beappropriate, for example desulphiding and dyeing, by again placingI the carrier upon'a `driving spindle, land applyd ingthe treating liquids to the inner periphery of the cake, through which they passby centrifugal action incident to its rotation.`

As an example of a modified form ofconstruction for the carrier, I have shown in Figs. 7 and 8 atype in which theAgripping bars 40 are fewer in Lnumber than in the construction` first described, each of the bars, however, carrying a .segmental screen 41 adapted to lie against the inner periphery. of `the fiber cake. In this construction the upper land lower' plates'are dispensed with and are substituted by upper and lower flanges 42 and 43 at opposite ends of the rotarytube 44 which forms a portion of the carrieizj The flanges 42 and 43 arelsuit-ably apertured jin register to receive the upper and lower offset ends of the bars, 40 which swing therein. The lower flange 43 is also apertured to accommodate the offset ends of the rods45 which project through apertures Permeating the cake, the liquid` 4 6 inthe down-turned flange 47 `yon the shifting disk 48.

The hub 49 at the head of the spindle 50 is providedwith an annular channel 51, in which the lower fla-nge 43 of the tube 44 is accommodated, while the pockets 52 `into which the stud ends 53 of the bars 40 pro- Ject,lextend downward from the bottom of the channel 51. The entry of the stud ends 53 of' the bars`40 and rods 45 into their appropriate pockets 52 in the bottom of the channel 51, may be l'eadily assured by means of a locating boss 54 on the hub 49 which takes into a corresponding notch 55 at the lower end of the tube 44.

In both ofthe constructions. the rods 45 afford ready means for shifting the gripping bars 4() of the ca geoutward into engagement with the inner face of the fiber cake, after the carrier has been positioned rods 45 pass through holes 46 in the flange 95 i 47 of the shifting disk, the rods may be also used .to collapse the `cage by shifting the gripping bars 40 inward. It is necessary merely to push the Vrods inward to cause them to rotate the disk in the opposite directiondand thus swing the gripping bars inwar The rods 45 thus also form. portionof the carrier in this construction.

In the construction shown in Figs. 1-5, I

the carrier may be handled readily by means of the collar 13, the apertures in which, formed by striking-in of thel lugs 31, afford finger holds. A similar flange may. befprovided at` the upper end of the. tube 44 i (Figs. 7 and 8) if desired--but there is in p this construction ample finger room between adjacent bars -of the cage.

.It will of course be understood that vari`- ous other modifications. readily; occurring to those skilled in the art, both inthe details of the stepsof the method and inthe structural features of the carrier ap aratus, may be made without departing rom what I claim as my invention. f

I- claim- 1. In the manufacture of artificial silk,

the step 'of applying liquid to a rotating. fiber cake simultaneously throughout the length of the cakeaxis to cause the liquid to pass through the cake by 'ceutrif-ugahforce.

2. In' the manufacture of artificial silk,v

the step of applying liquid in spray form to the inner face of a rotating fiber cake to cause the liquid to pass throughtlie cake by centrifugal force.

. 3. In the inanuf'acture of artificial silk, the step Aof applyingliquidin the f'orm of a lol i the fiber cake upon a carrier, causing liquid centrlfugal whirling s ray to a rotating fiber cake to cause the liquid to pass through the cake by centrifugal force.

4. In the manufacture of artificial silk, the step of rotating a fiber cake and simultaneously applying thereto a liquid spray whirling in the same direction to cause the liquid to pass through the cake by centrifugal force. v

5. In the manufacture of artificial silk, the steps of dofiing a spun fiber cake upon a carrier engaging .the cake at its inner periphery causing the carrier to rotatel and supplying liquid by centrifugal action to the lnner peripheral face of the cake during its rotation. v

6. In the manufacture of artificial silk, the step of supplying liquid in divided form to the inner peripheral face of a fiber cake throughout the axial dimensions thereof and simultaneously rotating the cake to cause the liquid to permeate the same by centrifugal force. A v e 7.,In the manufacture of-artificia l silk, the steps of supplying liquid simultaneously in all directions to the inner peripheral face of a fiber cake during the rotation of the latter, to cause the liquid to permeate the rake, by centrifugal force, cutting ofi' the supply of liquid and continuing the rotation of the cake to discharge the free liquid from the interior of the cake through its outer periphery by centrifugal force.

8. In the manufacture of artificial silk, the steps of forming a fiber cake, mounting the cake upon a carrier and subjecting the cake While so mounted to successive treatments by liquid applied to the inner. facer of the cake and caused to lpenetrate the same by centrifugal force.

9. In the manufacture of artificial silk, the steps of forming a fiber cake, mounting the fiber cake upon a carrier, and subjecting the cake on said carrier to washing and drying steps in sequence, the washing liquor being applied to the inner face of the cake during its rotation, and caused to pass therethrough by centrifugal force, and the drying step being effected by the haltof the liquid step during the continued rotation of the cake.l

10. In the manufacture of artificial silk, the steps of forming aI fiber cake, mounting to pass througlvsaid cake by force', removing free liquid from the interior of the cake by centrifugal force, and thereafter drying the cake While quiescent.

11. In the manufacture of artificialsilk,

the steps of forminga fiber cake, mounting the fiber cake upon a carrier, and subjecting the cake on said carrier toffti'ashing and dryin steps, and subsequently Winding the fiber/ rom said cake.

l2. In the manufacture of" artificial silk,

the steps of forming -a fiber cake, mounting the fiber cake upon a carrier, permitting the setting-up action to take place while the cake is on rier to a washer and washing the fiber cake While on said carrier.

13. In the manufacture of artificial silk, the steps of forming affiber cake, mounting `the fiber cake upona carrier, permitting the setting-up action to take place While the cake is on the carrier, transferring thev carrie'r to a Washer and washing the fiber cake while on said carrier and during the rotation Jf the carrier.

14.l In the manufacture of artificial silk, the step of rotating a centrally open mass of fiber, supplying liquid to the inner peripheral surface of the mass during rotation of the latter to cause the liquid to pass through the mass by centrifugal force, and prevent- 1ing irlijurious abrasion of said surface by the iquic y 15. In the manufacture of artificial silk, the' step of rotating a centrally open fiber mass unconfined at its outer periphery, supplying liquid to the central opening of the mass during rotation of the latter to cause the liquid to pass through the mass and be freely discharged from its unconfined outer periphery by centrifugal force, and preventing injurious abrasion of the fiber by the liqui 16. In the manufacture of artificial silk, the step of spraying liquid against a surrounding mass of fiber during rotation of the latter to cause the sprayed liquid to pass through the mass and be discharged from its outer periphery by centrifugal force.

.17. In the manufacture of. artificial silk, the step of dispersing liquid by centrifugal force in a spray against the inner peripheral surface of a surrounding mass of fiber While the latter is rotating at a speed sufficient to cause the impingingspray to pass therethrough and be discharged from the outer periphery thereof by centrifugal force.

18. In the manufacture'of/artificial silk, the step of rotating an annular mass of fiber, and dispersing a stream of liquid in spray form against the inner periphery of the rotating fiber mass,

19. In the manufacture of artificial silk, the stepsof surrounding a stationary spray device by an annular mass of fiber, simultaneously rotating the' spray device and fiber mass, and feeding liquid to the spray device to causeA the dispersal of the liquid in the form of a spray against the inner periphery of the4 surrounding mass of fiber and causing the sprayed liquid to pass through the fiber mass by centrifugal force.

20. In the manufacture of `artificial silk, i

the steps of placing an annular mass of fiber upon a collapsible carrier, mounting thecarrier upon a rotatable spray device, rotating the carrier, transferring the car- Q1. In the manufacture of artificial silky" the steps of placing an annular mass of fiber upon a collapsible carrier, mounting the carrier upon a rotatable spray device, rotating said spray device and carrier and feeding liquid to the spray device while, the latter is rotating to cause the inipingeinent of the liquid in spray form against the inner periphery of the tiber mass and its vpassage therethrough by centrifugal force, halting the spray device, removing the carrier therefrom and permitting shrinkage of the liber incident to drying While on said collapsible carrier.

22. In the manufacture of artificial silk, the step of rotating a collapsible carrier having thereon an annular mass of fiber, supplying liquid to the inner periphery of the mass during its rotation to cause the liquid to pass through the mass by centrifugal force, halting the 'carrier and permitting the. fiber mass 'to shrink incident to drying while ou said collapsible carrier.

In testimony whereof l have signed my naine to this specification.

` DONALD A. MCKENZIE.

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