US 2007914 A
Description (OCR text may contain errors)
July 9, 1935.; H. ELLING DEVICE FOR THE WASHING AND AFTERTREATMENT OF THREADS WOUND'ON SPOOLS" Filed June 8, 1932 2 sheees-snee; 1
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DEVICE FOR THE WASHING AND AFTERTREATMENT OF THREADS WOUND ON SPOOLS 1 Filed June 8, 1932 2 Sheets-Sheet 2 Patented July 9, 1935 PATENT OFFICE DEVICE FOR, THE WASHING AND AFTER- TREATIHENT OF THREADS WOUND N SPOOLS Hiigo Elling, Wuppertal-Oberbarmen, Germany,
assignor to North American Rayon Corporation, New York, N. Y., a corporation of Delaware Application June 8, 1932, Serial No. 616,139
Germany June 8, 1931 6 Claims.
My present invention relates to a process for the washing and after-treatment of threads wound on spools, in particular artificial silk, and to a new type of gasket or fitting in the wet treatment according to the pressure or suction process.
For the carrying out of the washing and other after-treatments of artificial products spun and wound on perforated, cylindrical spools, which products are made of cellulose solutions or other solutions suitable for spinning, the spools are stacked one on top of the other, or arranged next to each other and caulked as against one another with elastic rings. This process, however, cannot be carried out if it is a matter of spools, which permit of a decrease of the circumference after the spinning or after the washing. Spools of this kind have been often suggested. Thus spools have been furnished with movable parts, which possess a larger circumference during the spinnlng or winding than after the spinning or after the washing, or spools have been provided with slots, through which movable parts of the spool carrier penetrate to the outside during the spinning. Moreover, spools have been suggested, which have been prepared out of yielding material, such as for example out of fabric, paper, rubber or the like. Spools are also known which are slotted in longitudinal direction, so that the mantle parts can be moved against one another.
All these kinds of spools have also perforations on the surfaces not covered with threads, so that the above described kind of caulking with elastic rings is not possible, as too much of the treatment liquid would flow unused through these perforations.
It is an object of my invention to achieve a simple and effective caulking of the spool stacks. or spool rows for the carrying out of the wet treatment, in that pliant, automatically closely 0 fitting, or elastic caulking members are laid round the ends of the spools, which members lay themselves on to the lateral edges of the threads. Especially rubber, woven fabrics and paper not .allowing liquids to pass through, and the like 5 have proved themselves to be the best materials.
Another object of my present invention is to provide a means whereby filaments wound on spools, which are arranged in stacks, can be caulked as against one another.
A further object'of the present invention is to provide a means of the type set forth, which is so constructed, that in the treatment of threads wound on spools by passing liquids through the body of the threads or filaments by application of pressure or vacuum no liquid can flow through the parts not covered with the threads without being used.
Other objects of my invention will become apparent from a perusal of the following specification and a study of the accompanying drawings, in which Fig. l discloses a cross sectional view of two spools with my new type of gasket.
Fig. 2 is a detailed view in cross section of the gasket shown in Fig. 1.
Fig. 3 is a sectional view of two spools and of a modified form of my gasket.
Fig. 4 shows the arrangement of Fig. 3 in operating position.
Figs. 5 and 6 show a gasket in the form of a tube in cross section and in top plan view.
Fig. 7 discloses this form of my gasket in operating position.
Figs. 8 and 9 are sectional views of two further modified forms of my new caulking device.
Figs. 10 and 11 show two diiierent forms of thread-windings,
According to Fig. l the spools I, on which the threads 2 are situated, are provided with longitudinal slots, through which during the spinning, the parts of the spool-holder protrude towards the outside. After removal from the spool .carriers the. spools are placed on a centering ring 3, which can consist of any desired material, for example hard rubber, and which carries as efiective caulking surfaces two parts 4 which for instance are of soft rubber. If an under-pressure is produced in the interior of the column comprising spool and caulking disc, the parts 4 lay themselves on to the threads 2 laterally and thereby take the form somewhat like that in Fig. 1. In Figs. 3 and 4 spools are shown having a longitudinal slot and the circumference of which can be decreased by pressing one end under the other like a spiral. In this case the spools are positioned directly one above the other without a centering ring 3. The caulking member 4 has a somewhat different form from that in Figs. 1 and 2. By the production of an under-pressure in the interior of the spool the V-shaped parts lay themselves on to the ends of the layers of thread, so that they take the form corresponding to that in Fig. 4.
The caulking member can also take the form of a tube possessing a round, oval, fouror manysided cross section. Fig. 5 represents such a tube in sectlon,-Fig. 6 in top plan view and Fig. 7 in the operating position.
For the caulking of the last spool or the last winding of a row or stack as against the end of the treatment device and as against the head piece one pliant, automatically close fitting part t is often only necessary, which is preferably firmly connected with the end piece, for example with the bottom of the treatment device. If the flow of the liquid goes from the outside through the threads and the spool into the interior, then the forms of execution shown in the figures are of advantage. If, however, the direction of the flow is reversed, that is from the interior of the spool to the outside, then the parts 4 are to be so shaped, that they point towards the spool. In this case the material must be selected somewhat thicker, in order that the caulking ring is not pressed apart. Owing to the pressure exercised from the interior to the outside the parts t are in this case also pressed against the threads.
If the pliant, automatically closely fitting caulking members be already on the spools in spinning, so that they represent removable discs, the member 4 is preferably provided with vertical surfaces at the plane of contact with the threads (of. Figs. 8 and 9).
For the carrying out of the process the form of the winding of the thread can be of any kind. Thus, for example, the forms of thread shown in Figs. 10 and 11 are suited for the application of the above described caulking member.
The form of the caulking member can vary. It is only important that it lays itself easily on to the edges of the thread-windings.
The caulking from thread to thread in the sense of the present process and with the aid of the novel, pliant automatically closely fitting member is also of great importance for such spools or thread carriers having no slots or apertures protruding beyond the spun surface but being covered with porous material. The new kind of caulking thereby prevents too great a loss of liquid, which could occur in the hitherto usual washing in consequence of these porous materials allowing the liquid to penetrate. Furthermore the caulking members can also be advantageously applied for the above described spools with change in circumference, even if the decrease in the circumference is only made in the washing.
While I have illustrated what I believe to be pieces, that is for example as against the bottom the preferred embodiment of my invention, it is obvious that various changes and alterations might be made in the general form of the parts described without departing from my invention and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.
What I claim is:
l. A device for caulking adjacent edges of thread windings in the wet treatment comprising a ring-shaped tube of soft flexible material adapted to conform to the shape of the surfaces contacted thereby upon the application of a lowering in pressure within the thread windings.
2. A device for caulking adjacent edges of thread windings in the wet treatment comprising a ring-shaped tube having a four-sided crosssection and of soft flexible material adapted to conform to the shape of the surfaces contacted thereby upon the application of a lowering in pressure within the thread windings.
3. A device for caulking adjacent edges of thread windings in the wet treatment comprising a cylindrical portion provided with a fiat radial flange of soft flexible material at each end of said cylindrical portion, said flanges being.
adapted to conform to the. shape of the surfaces contacted thereby upon the application of a lowering in pressure within the thread windings.
4. A device for caulking adjacent edges of thread windings in the wet treatment comprising a cylindrical portion provided with a flat radial flange of soft flexible material at each end of said cylindrical portion, said flanges being Joined in spaced relation at their outer peripheries, said flanges being adapted to conform to the shape of the surfaces contacted thereby upon the application of a lowering in pressure within the thread windings.
5. A device according to claim 3 characterized by the fact that the cylindrical portion and the two flanges produce a U-shape in cross-section.
6. A device according to claim 3 characterized by the fact that the cylindrical portion and the two flanges produce a V-shape in cross-section. v