US1779313A - Apparatus relating to the manufacture of artificial filaments, threads, and the like - Google Patents

Description

Oct. 21, 1930. H. J. HEGAN T AL 1,779,313

APPARATUS RELATING TO THE MANUFACTURE OF'ARTIFICIAL FILAMENTS, THREADS, AND THE LIKE' Filed Feb. 25, 1928 2 Sheets-Sheet l JV 1 T lf 2) l1 1 J5 l\ E L\l\\\ v/ I J p A F F F r G 7/ g //v1//v 70/76:- floma: 1144156 f/EGA/V and Eon/Am b91254 E r by their Arnmeys Oct. 21, 1930. I J HEGAN ET AL 1,779,313

' APPARATUS RELATING To THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, AND THE LIKE Filed Feb. 25, 1928 2 Sheets-Sheet 2 Fig.3.

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Patented Oct. 21, 1930 UNITED STATES HORACE JAMES BEGAN, OF LYNWOOD, ANDV' EDWARD HAZELEY, OFSOUTH VIEW,

PATENT OFFICE ENGLAND, ASSIG-NORS '10 COURTAULDS LIMITED, OF LONDON, ENGLAND APPARATUS RELATING To THE MANUFACTURE or ARTIFICIAL FILAMENTS, THREADS,

AND THE LIKE Application filed February 25, 1928, Serial No.

In the manufacture of artificial threads, filaments, and the like by the box spinning process, it is usual to pbass the thread after leaving the spinning ath into a rapidly rotated box, the thread coiling itself against the Wall of the said box, forming an annular ring or cake, hereinafter referred to as cake. The cake of thread so formed still contains some of the contents of the spinning bath, which has been carried along by the thread, and in the further treatment of the thread it is necessary to remove these contents by washing or other means, and hitherto ithas been customary to reel the, thread from the cakesinto skeins, and then subject theskeins to a washing treatment. It'has also already beenproposed in the manufacture of artificialisilk or the like to Wash the massof threadwhile it is still in the centrifugal apparatus in which the thread is collected. It has further been proposed to transfer the cake from the box in which it has been collected to a portable carrier, which is then placed on a spindle and rotated rapidly, while washing liquid is introduced into the centre of the cake and is forced by centrifugal force through the cake, thus subjecting the said cake to a washing process. It has also been proposed to allow water or other liquid to pass down the guiding funnel into the spinning box at the same time that the newly spun thread is being passed through the said funnel into the said box.

The present invention relates to an improved apparatus in which the artificial thread, after it has been passed into the spinning box, and thus obtained in the form of cake, is subjected to a treatment with liquid while itis still in the form of the cake, and while the said cake is being rotated at a high speed. The cake may either be treated with liquid in the same box in which the thread is collected, or after the cake has been formed it can be transferred to another box for the purpose of treating with liquid, while the first box is employed forthwith for the collection of further thread to form another cake. The treatment with liquid may be for the purpose of washing the cake,

257,023, and in Great Britain April 21, 1927. i

in which case the liquid employed would preferably be water, but our invention also applies to other treatment of the cake with liquid, for instance, for removing sulphur from the yarn, or for bleaching, dyeing or soaping the yarn.

According to the present invention, pervious means are provided which support the lower surface of the cake and which also al low the treating liquid to pass between the bottomof the box and the lower surface of the cake. For instance, a layer of pervious material such as wire gauze, thick coarse cloth or corrugated non-corrosive material, may be interposed between the bottom of the box and the lower layer of the cake 'before the Washing or other treatment is commenced. Or the said means for allowing the treating liquid to pass between the'bottom of the box and the lowersurface of the cake may be constructed as an integral part of the box;,for example, the part of the box" on which ,the cake rests may be provided with -a knurled or, pyramidical surface;

' \Vhen employing A the means l according *to the present invention-for washing acak'e, the

timerequired for removing thechemicals of the splnmng bath, for example, all traces of acid from a cake of viscose silk, is 'very' considerably shortened. r

When carrying out the said' treatment with liquid' according to this invention, it is generally preferred'to introducethe water orother treating'liqu-id in theyform of a spray, forinstancethrough a-spraying nozzle, ifdesired, employing compressed airto assist inspraying the liquid. Furth'er, the spraying nozzle may be attached to atraverse, or its equivalent, so that the nozzle can be -moved up and down inside the annular' cake, and in some casesit :is useful to allow thenozzleto descend to a point'below, say hal'f-an-inch below, the lowest level':of the said cake. It is, however, notalways necessary to cause the-nozzle to ascend and descend inside the cake, since eifective treate 'ment can be carried out by means ofastationarynozzle, provided the sprayedliquid from the said". nozzle adequately reaches all parts of the cake and also passes underneath Fill) the cake between the said cake and the bottom of the box. If desired two or more stationary nozzles can be situated inside one box, in order to carry out an effective spray ing of the cake.

If it be desired to treat the cake with liquid according to this invention in the same box in which the thread has been collected, the means for allowing the treating liquid to pass between the bottom of the box and the lower surface of the cake may be present in the box while the collection of the thread proceeding.

The box should be provided with suitable means to allow the treating liquid to escape, for which purpose it is generally preferred to perforate the wall of the box with a number of small holes.

Referring to the accompanying drawings, Figures 1, 2 and 3 shew in vertical section three different examples of methods for carrying out this invention in practice, but the invention is not restricted thereto. In each of the arrangements shewn, A represents the box, B the lid of the box, C the cake of thread and N the small holes in the wall of the box, while L represents the tube supplying the water or other treating liquid to the nozzle or nozzles M. In Figures 1 and 3 the tube L carrying the nozzle M is preferably provided with reciprocating means, not shewn in the drawings, so that the nozzle M ascends and descends during the process of washing or the like. In Figure 2 the spraying is effected by means of two nozzles M of the fish tail type attached to the said tube L, and in this case the liquid is sprayed to such an extent that the whole of the cake is adequately treated without any traverse motion of the nozzle being necessary. Fig. 4 is a plan View of the box shown in Fig. 3 with the cake removed, the figure being taken on the line (1-?) of Fig. 3 looking in the direction of the arrows.

In Figure 1, the means shewn for separating the cake G from the bottom of the box A consists of an annular disc D of ebonite or the like provided on its under surface with studs E, of which there may be for example two rows, the upper surface of the disc D being provided with radial grooves.

In Figure 2, the cake C is separated from the bottom of the box A by means of an annular disc of wire gauze F, the outer and inner peripheries of which may conveniently be held in position by wrapping round an inner and outer wire ring H and G. The gauze F and the wire rings H and G are made of non-corrosive material, such for instance as the metal sold under the registered trade mark of Monel metal.

Figure 3 shows a box A in which the surface on which the cake C rests is, by means of. pressing or cutting a suitable plate or the like, covered with small pyramids K,

shewn in plan in Figure l, which allow the water or other treating liquid to pass beneath the cake C.

What we claim is 1. Apparatus for the treatment with liquid of a cake with artificial filaments, said apparatus comprising a rotatable box and pervious means for supporting the lower surface of the cake and for allowing the treating liquid to pass between the bottom of the box and the lower surface of the cake.

2. Apparatus for the treatment with liquid of a cake of artificial filaments, said apparatus comprising a rotatable box and a nozzle depending in said box adapted to spray liquid on the cake, in combination with pervious means for supporting the lower surface of the cake and for allowing the treating liquid to pass between the bottom of the box and the lor-Jer surface of the cake.

3. Apparatus for the treatment with liquid of a cake of artificial filaments, said apparatus comprising a rotatable box and nozzle means depending in said box adapted to introduce liquid in the form of a spray and simultaneously introduce compressed air to assist the spray, in combination with pervicus means for supporting the lower surface of the cake and for allowing the treating liquid to pass between the bottom of the box and the lower surface of the cake.

In testimony whereof we have signed our names to this specification.

HORACE JAMES HEGAN. EDI/VARD HAZELEY.

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