US2787152A

US2787152A - Jet suction device for tube spinning

Info

Publication number: US2787152A
Application number: US341528A
Authority: US
Inventors: Jr Ernest J Griset
Original assignee: American Enka Corp
Current assignee: Akzona Inc
Priority date: 1949-10-20
Filing date: 1953-03-10
Publication date: 1957-04-02
Anticipated expiration: 1974-04-02

Description

April 2, 1957 E. J. GRISE-r, JR

JET sucTIoN DEVICE Foa TUBE SPINNING Filed March 10. 1953 INVENTOR ATTORNEY JET SUCTIUN DEVICE FOR TUBE SPINNING Ernest J. Griset, Jr., Asheville, N. C., assignor to American Enka Corporation, Enka, N. C., a corporation of Delaware Application March 10, 1953, Serial No. 341,528

2 Claims. (Cl. 68-181) The present application is a continuation-in-part of application Serial No. 122,560, led October 20, 1949, now Patent No. 2,725,276, dated November 29, 1955.

This invention relates to tube spinning and more particularly to a subassembly of tube spinning apparatus by the use of which both original installations and repairs are greatly facilitated.

The essence of tube spinning is the propulsion of a yarn or thread through a tube by a liquid which also effects the desired chemical treatment. ln such apparatus as is shown in my said Patent No. 2,725,276 the treating tube has an enlarged or flared mouth and a jet of liquid is discharged into the mouth from a nozzle axially aligned with but spaced from the mouth. Between the end of the nozzle and the mouth of the treating tube a low pressure or suction zone is created and the yarn is drawn into the zone by the stream of liquid.

From Ithe foregoing brief description it can be readily understood that the alignment of the nozzle with the mouth of the treating tube is highly critical as, indeed, is the spacing of the nozzle from the tube mouth. Since the nozzle and tube are most conveniently made of glass, there exists the problem of supporting the nozzle and tube in correct relative positions. This problem is further complicated by the need for easy replacement in case of breakage.

It is of course possible to machine a highly accurate structure for supporting the nozzle and tube but, in that case ,the original cost per unit is high, and when it is borne in mind that an ordinary two-sided machine involves seven tubes per spinning position and one hundred and forty-four positions, it can be seen that the cost factor in a production machine is prohibitively high. On the other hand, a separate supporting member for each nozzle and tube is highly desirable to facilitate replacement in case of breakage and alignment of the tubes and nozzles before installation into the system.

It is an object of the present invention to achieve the inherent advantages of a separate support for each nozzle and tube pair at very low cost while at the same time improving the ease with which the nozzles and tubes may be installed, adjusted and replaced.

Other objects and advantages of this invention will be apparent upon consideration of the following detailed description of several embodiments thereof in conjunction with the annexed drawings wherein:

Figure 1 is a View partially in vertical section and partially in elevation through a jet box and illustrating a nozzle and tube spinning supporting member constructed in accordance with the teachings of the present invention;

Figure 2 is a view in vertical section of a jet box containing a modified type of supporting member according to the present invention; and

Figure 3 is a perspective view of the nozzle and jet with a supporting member such as shown in Figure 2.

Referring now in greater detail to Figure 1 of the drawnited States Patent O 2,787,152 `l Piatnenteafd Apr. 2,1957

ings, the numeral 10 `designates a jet box of the type shown in said Patent No. 2,725,276. In tube spinning, two jet boxes are arranged in spaced relation facing one another. Each box accommodates a number of assem blies of the type shown in Figure 1 so that the yarn is introduced into the mouth of a tube which is located in one box, is propelled through that tube and is discharged and drawn into the mouth of anothertube in another box. It continues in this fashion back and forth between the boxes until the desired liquid treatment has been accomplished. For example,.in Figure 1, which is taken at the middle of a group of spinning tubes, the yarn moves in the direction of theA arrow through tube 11, discharges into deliector 12 and is guided thereby to the mouth 13 of a tube 14. .When the yarn leaves the tube 14, it will discharge into a delector in the opposite box of the system from which it will be returned to the box 10 in another tube running substantially parallel to the tube 11. This brief explanation is here inserted to clarify the function of the present invention,` and full details of operation of a tube spinning system incorporating the present invention can be had by reference to said Patent No. 2,725,276. l

It will be noted that liquid in the tube 14 is supplied from a tube 15 which has a nozzle 16 at its end. lThe nozzle 16 is `co-axial with and spaced from the mouth 13 of the tube 14. The space between each nozzle and the respective tube mouth is a low pressure zone into which the yarn is sucked for entrainment by, and treatment with, the liquid issuing from the nozzle, such as the nozzle 16. Once the yarn is running in 'the tubes, the detlectors 12 are moved from the broken line to the solid line position. Thus liquid from the tube 11 discharges through a spout at 17, while any waste liquid, wiped oif the yarn or resulting from the action of jet 16, is separately discharged through a spout at 18.

With the foregoing background it will be'appreciated that the alignment of the jet 16 with the mouth 13 is of absolutely critical importance. A major misalignment would result in a great deal of splashing and insufficient liquid velocity in the tube 14, with resulting bad propulsion, :and inadequate liquid treatment.` Since the liquid projected from the nozzle 16 is necessarily conical in form, the axial spacing between the nozzle and mouth is also critical. In order to maintain these critical adjustments, a supporting member 19 is `provided to hold the nozzle and mouth in correct relative positions. The supporting member 19, which is constructed according to the principles of the present invention, includes a base portion 20, having upwardly extending arms 21 A and 22 at its opposite ends. The arm 21 supports an integral sleeve 23 in alignment with a very much longer integral sleeve 24 which is supported by the arm 22. The ysleeve 24 is actually composed of two sections of diierent external diameter; a section to the left, as viewed in Figure l, which is of large diameter, and a section to the right, which is of smaller diameter and which is intended to be encompassed and supported by a part of the box 10. The part of the sleeve 24 which is supported by the box 1t) is designated by character 24r in Figure l.

The supporting member 19, including its

arms

21 and 22 and the sleeves 23 and 24, is cast as an. integral body from a soft metal, such as lead. Preferably, the tubes 14 and 1S are cast in situ with the casting of the support ing member 19. In this manner, an excellent glass-tometal seal is obtained and tubes 14 and 15 become securely mounted in the supporting member 19. The glass tubes are not damaged if a low melting metal, such as lead, is used in the casting operation.

The nozzle and tube apertures in the sleeves 23 and 24 are preferably a part of the supporting member as of-the nozzleandmouth. 'Furthermore lead being a met-aly characterized bysoftness vand exceedingly low elastic'` limit, minor adjustments `are possible without spring back, as-wou'ldbe the casewith materials of higher elastic limit.

l' The-strueturefof the'supporting member 19, involving an elongated-base' portiond 20 -and

upstandi'ng arms

21 and 22,1 presents'abendable portionvb'oth horizontally and verticallywherebyjbothihorizontal and vertical adjustments are easily made. Because of the softness of lead theincorporation of lthetubes into the 'sleeves can be accomplished vwith minory danger of glass breakage.

The portion 24rofthe sleeve 24 `acts `as a support for the` entire member 19. It need not so function, however, as can be seen by reference to' Figures 2 and 3 wherein there is shownasupportingA member 25 having a depending st'em 26 which constitutes the supportbut which is otherwise similar to the supporting memberin Figure l. The-member25i1cli1des'

arms

27 and 28 respectively which support integral-

sleeves

29 and 30 which in turn support nozzles 31 and' 32 respectively. Although the jet box 33 of Figure 2 is dilferent from the jet box 10 shown irr Figure 1,`the box differences do not themselves constitute a partl of 'this'inventiom since this invention is direc-ted to the supporting member 25 rather than the jet box. The details ofV they jet box of Figure 2` are described in application'Serial No. 341,529, tiled March 10, 1953, now Patent No. 2,724,956, dated November l1, 1955.

VVIt should be noted that the supporting member 25 is quick detachably removable from the box-33. To this end the box 33 is'provided'with aseries of sockets at 34, each of` a contour anddepthto receive the lower end of ar stem 26. To remove the supporting member and its tubes it is only 'necessary to pull the member upwardly and then'move'it up and 'to the` right from the Figure 2 position. The long-:sleeve 30 ot the member 25 is not encompassed'byany part of the jetib'ox butrncrely rests in a saddleat'35.

It nwill be appreciated that by4 supporting a short nozzle anda short tube lengthin adevice, such as the supportingmemb'er' 19 or 25', itis possible'also to support other tubes` connectediby rubber sleeves to the short lengths held Vin the member.

' Figure'v 3 illustrates 'thedetails of the supporting membery 25:shown in Figure' 2l and the manner vin which the nozzle of tube 31 and the mouth of tube 3?, are held iin axial alignment. 'As previously pointed out, the cast assembly shown in Figure 3 may be quickly inserted into or removed from a jet box in event of tube breakage.

What is claimed is:

l. A jet suction device for a tube spinning machine comprising a. jet box, a rst hollow tube having a mouth disposed within said jet box, a second hollow tube having a nozzle disposed within said jet box in cooperative axial alignment with and spaced from the mouth of said rsttube, a supporting member formed of metal having a low elastic limit for adjustably mounting said irst and second tubes in said spaced and aligned relationship within said jetv box, arms projecting from the ends of said supporting member,V means deni-ng substantially aligned apertures in said arms for the reception of said first and second tubes, respectively, and mounting means for positioning said supporting member in said jet box. l

2. A jet suction device for a'tubel spinning machine comprising a jet box, a deector mounted within said jet box, said deilector being adaptable for receiving yarn from a source of supply and for changing the direction of'travel thereof, a'r'st hollow tube having a mouth disposed within said jet box in alignment with said deflector whereby yarn emerging from said deiiector may be received by said lirst tube, a second hollow tube having a nozzle disposed within Jsaid jet box in cooperative axial alignment'with andspaced from the mouth of said hrst tube, a supporting member formed of lead for detachably and 'adjustably mounting said rst and second tubes in' said' spacedv 'andaligned 'relationshipwithin said box, aims projecting from the ends of said supporting member, means defining substantially aligned apertures in said armsfor the reception of said first and second tubes, respectively, and mounting means for removably positioning said supporting member in said jet box in a fixed rele,- tionship with respectto said dellector.

References Cited'in the le of this patent UNITED STATES PATENTS 163,531 Roake May 18, 1875 871,209 Cotton Nov. 19, 1907 1,168,297 Gibson ian. 1S, 1916 1,592,840 Smalley July 20, 1926 1,665,445 Conrad Apr. 10, 1928 1,893,724 l Zinkil Jan. 10, 1933 21,025,577 Diehl Dec. 24, 1935 2,198,839 Pittman Apr. 30, 1940 2,289,929 Parkerl July 14, 1942 2,371,579 Cole Mar. 13, 1945 2,500,405 Fairbank Mar. 14, 1950 2,568,920 Kinraide Sept. 25, 1951 2,584,043 Oberly Jan. 29, 1952