US2088011A - Spindle - Google Patents

Description

July 27, 1937. P. M. PIERRAT 2,088,011

SPINDLE Filed April 27, 1931 2 Sheets-Sheet 1 Paul Marie P/erraz, I v5 N To R BY ms ATTORNEY July 27, 1937. P, PlERRAT 1 2,088,011

SPINDLE Filed April 27, 1951 2 Sheets-Sheet 2 J l y 17 O 16 7 6 2 Paul Marie Pier/m, INVENTQR BY 1-115 ATTORNEY Patented July 27, 1937 E s e UNHT FFICE mesne assignments, to E. I. du Pont de Nemours & Company, Wilmington, DeL, a corporation of Delaware Application April 27, 1931,- Serial No. 533,175

26 Claims.

This invention relates to a method and apparatus for the fluid treatment of packages of thread. More particularly the invention relates to a method and apparatus for the fluid treatment of bobbins or other packages 'of artificial thread made by the viscose or a similar process.

This invention will be described with particular reference to the viscose process but the invention is equally applicable to the treatment of artificial threads made by other processes and to the fluid treatment of thread of any kind which has been gathered into packages. In the viscose process of making artificial silk viscose is spun into a regenerating bath from which it is withdrawn as a thread of regenerated cellulose and wound on bobbins. The yarn which is thus formed contains large quantities of acids, salts, sulfur compounds and other reaction products. The yarn must be freed from these impurities and in many cases must be dyed, sized, treated with lubricants, and finished in various ways before being sold. The nature of the thread is such at this stage of its manufacture that handling is to be avoided. Consequently, the treatments are most advantageously carried out while the yarn is on the bobbin or in other package-d form.

The washing of yarn packages is carried out at the present time by drip, centrifugal, vacuum, and pressure processes each of which has its advantages and disadvantages. Of these methods treatment by pressure ofiers the greatest promise. It has, however, been handicapped in the past by causes more fully explained in the succeeding paragraph.

In the pressure treatment of artificial silk the silk is wound on perforated bobbins which are customarily arranged on spindles, singly or in groups, by clamping or screwing compressible gaskets against the ends of the bobbins. necessary to the treatment are then forced through the bobbins and the thread package. Difficulty is experienced when high pressure is used (that is, pressure of 40-50 pounds per square inch) by reason of leakage around, or blowing out of the gaskets. This method, furthermore, has

' heretofore required an excessive amount of time in the transference of bobbins to and their removal from the spindles. The gaskets also are subject to excessive wear and frequent replacement. In cases where there is a leaking gasket the washing must be stopped until the gasket can be replaced. I

An object of this invention is to provide a method and apparatus for fluid treating artifi- Fluids cial silk cakes whereby the above difficulties are overcome. Another object of the invention consists in the construction of a spindle which auto- 7 matically seals the ends of the bobbin and prevents the escape of fluid and which also auto- 5 matically releases the bobbin when the washing is completed. A still further object of the invention consists in the use of a new and improved type of washing spindle. Other objects of the invention will be in part apparent and in part described in the following specification.

Figure 1 is an exploded view of. my new washing apparatus. Figure 2 is a longitudinal diametrical section of 'my apparatus in operation. Figure 3 is a longitudinal diametrical section of the spindle body. Figure 4 is a longitudinal section of the spindle end. Figure 5 is a longitudinal diametrical section of the spacer. Figure 6 is a cross section of the spacer on the line AA of Figure 5. Figure 7 is a cross section of the expansible gasket. In the drawings like numbers refer to like parts.

Referring now to the drawings, numeral 1 indicates the spindle body which is provided with a screw-threaded extension 4 for attachment to a suitable source of fluid supply.

The spindle body is provided with a shoulder l I which may have a minor shoulder ll! of hexagonal shape for the application of a Wrench. This shoulder is provided on what we shall term its inner side with an undercut annular portion 8.

A fluid channel 1 runs longitudinally the length of the spindle and side channels 6 and I6 pass through the spindle body to its outer surface. This passage is screw-threaded at the end of the spindle opposite the shoulder for the reception of. the spindle end.

The spacer 3 is provided at each end with an. annular ring 8a in the shape of a conic section. Connected with these two rings are a number of 40 broad strips it with openings between them. As illustrated these strips are in the form of plates with a rib but they may, of course, be of any suitable shape.

The spindle end 2 is provided at what I shall term its inner end with a screw-threaded extension it which is designed to screw into the screwthreaoled end of the spindle body I. The spindle end is provided with an annular undercut ring 8b and with channels la'and I5. The spindle end may be provided with a recess I! for the reception of a wrench.

The number 5 designates a ring-shaped washer which. may be substantially U-shaped in cross section having sides formed at an angle approximately equal to the angle at which the annular members 8, 8a, and 8b are undercut.

In assembling the apparatus a washer is slipped over the spindle into the position shown at the left of Figure 2 abutting the undercut annulus. The spacer is then placed in position as shown in Figure 2 with its undercut annulus abutting the other diagonal face of the washer and with one of the plates over the channel 6. In the construction of the spindle body and spacer the channel ti and spacer it are so spaced that the plates may always be made to cover the channel openings. The spacer plates iii are constructed as at 53 so that a space exists between the plate and the outlet of channel 5. A second washer 5 is then slipped into place on shoulder id of spindle end 2 and the spindle end is then screwed into position.

The relation of shoulders 32] and 29 to the length of the various elements of the apparatus is such that each element has what may be termed a loose fit. The washers 5 are not under compression and the spacer 3 may be turned by hand in order to arrange the plates above the orifices of the channels.

The diameter of the Washers 5 in assembled position is such that a bobbin ill carrying a cake of artificial silk may be slipped on and off with erfect ease so long as the fluid treatment is not progressing. The bobbin ill may be of any suitable liind but is preferably ioraminous in the portion under the thread and solid at the ends.

As soon as the wash water or other fluid is turned on the liquid enters the channel 3 and fllls the channels i5, 6, la, and it as shown by the arrows. Due to the resistance of the cake of artificial silk to the passage of the liquid, pressure inside the apparatus builds up and as it builds up it forces the walls of the washers 5 into tight contact with the annular faces 8, 8a, and 8b and the peripheries of the washers into tight and sealing contact with the ends of the bobbin it. It is, therefore, seen that liquid cannot escape around the ends of the bobbin or through other portions of the apparatus and that its only outlet is, consequently, through the cake of artificial silk. As soon as the treating fluid is turned off the washers retract to their normal size and the bobbin with its cake can be slid oh and transferred to the location or" the next step in its manufacture.

The spindle body and the spacer may be of practically any material having sufficient rigidity to retain the desired shape. They can advantageously be made, however, of molded compositions such as micarta or of metals such as aluminum which are not affected by the treating fluids with which they come in contact. The washers 5 can be made of any flexible material which has sufficient resilience but are advantageously made of rubber or rubber compositions, or can be made of other flexible and resilient materials which are not seriously affected by the liquids with which they come in contact.

Among the advantages of my invention are speed of handling, automatic sealing and unsealing of the bobbin, ease of assemblage of the apparatus, low cost of replacement due to the practically negligible wear and tear on the elements, and quicker, more thorough, and less expensive treating of the thread. Other advantages will be apparent from a consideration of the specification.

As many apparently widely different emb0dimerits of this invention may be made without departing from the spirit and scope thereof, it is to be understood that I do not limit myself to the specific embodiments thereof except as defined in the appended claims.

I claim:

1. In a fluid treating apparatus a supporting means, a thread holder carried by the supporting means, expansible means between the supporting means and thread holder, and fluid means for expanding the said expansible means.

2. In a washing apparatus a spindle, a bobbin carried by the spindle, expansible means between the spindle and bobbin, and fluid means for expanding the said expansible means.

3. In an apparatus for fluid treatments a member provided with an annular undercut face, an element carried thereby and provided with an annular undercut face, a flexible washer of substantially U-shaped cross section between said annuli, and fluid means for expanding the washer.

a. In a fluid apparatus means for holding a bobbin, an annulus on said means, a member car ried by said means and provided with an annulus, a flexible washer between said annuli, and fluid means for expanding the washer.

5. In a washing apparatus means for holding a bobbin, an annulus on said means, a member carried by said means and provided with an annulus, a flexible washer of substantially U-shaped cross section between said annuli, and fluid pres sure means for expanding the washer.

6. In a washing apparatus means for holding a bobbin, an annulus on said means, a spacer carried by said means and provided with an annulus, a flexible ring-shaped washer of substantialiy U-shaped cross section for cooperation wi h the annuli of said means and said spacer, and fluid pressure means for expanding the washer against the said annuli.

7. In a washing apparatus means for holding a thread carrier, an annulus on said means, a spacer carried by said means and provided with an annulus, a flexible ring-shaped washer of substantially U-shaped cross section for cooperation with the annuli of said means and said spacer, a thread carrier mounted on. the said means for cooperation with the periphery of the washer, and fluid pressure means for expanding the washer against the cooperating annuli and thread carrier.

8. In a washing apparatus a fluid supply, a spindle for attachment thereto having an annulus, a spacer carried by the spindle and provided with an annulus, a flexible ring-shaped washer of substantially U-shaped cross section for cooperation with the annuli of spindle and spacer, a thread carrier mounted on. the spindle for cooperation with the: periphery of the washer, and fluid pressure means for expanding the washer against the cooperating annuli and thread carrier.

9. In a washing apparatus a fluid supply, a spindle for attachment thereto having an undercut annulus and having a fluid channel, a spacer carried by the spindle and provided with an undercut annulus, a flexible ring-shaped washer of substantially U-shaped cross section between and for cooperation with the annuli of spindle and spacer, means mounted on the spindle for cooperation with the periphery of the washer, and a fluid channel to the washer whereby it may be expanded by fluid pressure against the cooperating annuli and the said mounted means.

10. In a washing apparatus a fluid supply, a spindle for attachment thereto having an undercut annulus and having a fluid channeL'a spacer carried by the spindle and provided with an undercut annulus, an expansible washer between and for cooperation with the annuli of spindle and spacer, means mounted on the spindle for cooperation with the washer, and a fluid channel to the expansible washer whereby it is expanded against the cooperating annuli and against the said mounted means.

11. In a washing apparatus a fluid supply, a spindle for attachment thereto having an undercut annulus and having a fluid channel, a spacer carried by the spindle and provided With an undercut annulus, an expansible-washer between and for cooperation with the annuli of spindle and *spacer, means mounted on the spindle for cooperation with the washer, a channel in the spindle for directing fluid to the spacer, means on the spacer for controlling the flow of fluid to the said mounted means and a fluid channel leading to the expansible washer whereby it is expanded against the cooperating annuli and against the said mounted means.

' 12. In a washing apparatus a fluid supply, spindle for attachment thereto having an annulus adjacent each end and having a fluid channel, a spacer carried by the spindle between the said annuli and provided adjacent its ends with annuli, expansible washers between and for cooperation with the annuli of spindle and spacer, a thread carrier mounted onthe spindle, a channel in the spindle for directing fluid to the spacer, means on the spacer for controlling the flow of the said fluid to the thread carrier, and

a channel to the interior of the expansible washers whereby fluid pressure will act to expand the washers against the cooperating annuli and against the thread carrier.-

13. In a washing apparatus a fluid supply, a spindle for attachment thereto having an undercut annulus adjacent each end and provided with a channel for a fluid, a spacer carried by the spindle between the said undercut annuli and provided at its ends with undercut annuli,

expansible washers between the cooperating annuli of spindle and spacena perforated thread carrier mounted on the spindle, a fluid channel to the spacer and the thread carrier, means on the spacer for controlling the flow of fluid to the thread carrier and a fluid channel to. the interior of each of the expansible washers whereby fluid pressure will act to expand the Washers against their cooperating undercut annuli and against the ends of the thread carrier.

14. In a washing apparatus a fluid supply, a spindle body for attachment thereto having an undercut annulus adjacent each end and provided with a channel for a fluid, a perforated spacer carried by the spindle between the said undercut annuli and provided at its ends with cooperating undercut annuli, expansible washers between the respective cooperating annuli, a foraminous thread carrier mounted on thespindle, a fluid channel to the thread carrier, means on the spacer for directing the flow of fluid, and a fluid channel to the interior of each of the expansible washers whereby fluid pres- 7 the bobbin wall.

rated spacer carried by the spindle between the said undercut annuli and provided at its ends with cooperating undercut annuli, expansible washers between the respective cooperating anvided with a cooperating fluid channel, a perfothreaded portion for attachment to' the screwthreaded channel of the spindle body, a perforated spacer carried by the spindle between the said undercut annuli having means for directing a flow of fluid and provided at its ends with cooperating undercut annuli, expansible Washers betweenthe respective cooperating annuli, a forarninous thread carrier mounted on the spindle, a fluid channel to the thread carrier, and a fluid channel to. the interior of each of the expansible washers whereby fluid pressure will act to expand the washers against their cooperating undercut annuli and against the ends of the thread carrier. 7 p

i7. In a fluid treating apparatus supporting means provided with annuli, expansible means between the annuli, and fluid means for expanding the said expansible means.

16. In a fluid treating apparatus supporting means provided with undercut annuli, expansible means cooperating with the said undercut annuli, and fluid means for expanding the said ex-' pansible means.

19. Ina fluid treating apparatus supporting means provided with undercut annuli, expansible means between the annuli, a holder carried by the supporting means and having a fluid impermeable portion in cooperating relation to the expansible means, and fluid means for expanding the said expansible means into fluid-tight cooperation with the said annuli and the said holder.

20. A self-sealing joint comprising cylindrical means, expansible. annular means about said means, cylindrical means encircling said expansible means but substantially out of contact therewith, and fluid means for expanding said expansible means into contact with said encircling means.

21. In a fluid treating apparatus a supporting cans, a thread holder carried by the supporting means having imperforate ends and perforations therebetween, expansible means between the supporting means and the ends of the thread fluid will be passed through the perforations of the thread holder.

22. In a washing apparatus a spindle, a bobbin carried thereby, expansible means between the spindle and the ends of the bobbin, and fluid means for expanding the said expansible means into sealing contact with the bobbin ends whereby the fluid will be forced through perforations in 23. In a fluid treating apparatus supporting means provided with undercut annuli, expansible means between the annuli, a cylindrical member carried by the supporting means and having separated fluid impermeable portions in cooperating relation to the expansible means, and fluid means for expanding said expansible means into a fluid-tight cooperation With the said. annuli and the said fluid impermeable portions of the said cylindrical member.

24. In a device for use in the after treatment of artificial filaments, in combination, a bottom, a perforated tube rigidly secured thereto, a series of gaskets of soft rubber surrounding the tube at spaced intervals, and means whereby the said gaskets may be caused to expand.

25. A sealing means for use in the after treatment of filaments, etc; comprising a perforated support and a flexible, covering for one of the perforations therein, and means for the application of fluid pressure to said covered perforation whereby pressure may be applied to said perforation covered by said flexible covering, and said flexible covering may be expanded.

26. In combination, a perforated tube-like support for spooled filaments, etc.; a plurality of flexible coverings for said support, located at spaced points on said support, and means for the application of fluid pressure between said support and said coverings whereby pressure may be applied to the perforations covered by said coverings, and said flexible coverings may be expanded.

PAUL MARIE PIER/RAT.

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