US1500932A - Apparatus for producing threads - Google Patents

Description

July, 8 1924. 1,500,932

.1. P. HOOPER APPARATUS FOR PRODUCING THREADS Fiie'ci Feb. 23, 1922 2 Sheets-Sheet 1 IIIIIII' Y'IIIII).

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M s. 192A. 1,500,932

' A .J. P. HOOPER APPARATUS FOR PRODUCING THfiEIADs' FiledFeb. 23. 1922 s qu-s'heet 2 Patented July 8, 1924. r

rA'rEs PATIENT ounce.

JAMES r, HOOPER, or nux'ron, MARYLAND, AssIeNon TO JAMES P. noornn mAn'iL FAGTURING COMPANY, or BAL'rmonE, MARYLAND, A CORPORATION or MAM- LAND.

APPARATUS FOR- PRODUCING THREADS.

Application filed February 23, 1922. Serial No. 588,734.

7 '0 all whom it may concern Be it known that JAMns'P. HOOPER, a citizen of the United States, residing at Ruxton, in the county of Baltimore and State of Maryland,- has invented certain new and useful Improvements in Apparatus for Producing Threads, of which the following is a specification.

This invention relates to an improved ap paratus for producing threads from viscose or equivalent substances.

One object of the invention-is to provide an'improved structure whereby the viscose solution may be ejected in the form of threads by centrifugal force.

Another object is to combine with a centrifugal distributoror spinneret an improved structure for supplying a setting solution to act upon the ejected threads.

A. further object is to provide a structure that combines a centrifugal distributor or spinneret with means for forming a wall of setting solution into which the threads are directed and which are so related as to provide an air gap across which the threads will extend in passing from the ejector means to the setting solution, and

Another object is to provide an improved construction of spinneret embodying a series of radial needles whereby through centrifugal force to direct the viscose or other substance along the needles and ejectthe same in fine threads into a setting solution.

With the above, and other objects in view, the invention is illustrated in the accom panying drawing, wherein.

Fig. 1 shows an apparatus embodying the invention,-the structure being shown in vertical section.

Fig. 2 illustrates an enlarged sectional detail through a portion of the distributor or spinneret to show the means for retainwhich a -vertical spindle-7 extends. This spindle is tubular in form and therefore has a central vertical passage 8.

. A pulley 9, is provided on the vertical spindle whereby to rotate the same.

To the lower end of the spindle I screw a circular shell 10 having a depending an-' nular wall 11 and an inner dependingannular flange 12 which is of less depth than said annular wall.

The annular wall 11 of the shell is provided with a series of small perforatlons or nozzle-openings 13whieh extend from the inner o the 1 outer side' of said wall.

Through each of the perforations or nozzle-openings 13 I project a thin needle 14;

so that a series of radially-projecting nleefiles are provided all the way around th s e These needles have their inner ends extending through perforations 15 that are provided through the inner depending annular flange 12, which perforations 15, are alined with the centers of the perforations or nozzle-openings 13 so that the needles will pass through the nozzle-openings 13 but leave an annular space in each opening around the needle;

The extreme inner ends 16 of the needles terminate in a circular row around thein-.

The lower side of the shell 10, is closed' by a circular plate 17 whose periphery seats against the rim-edge of the shell and which is held in place by means of a screw 18,

which passes throu h the plate; extends up wardly across the c amber 19 that is'forrge'd by the shell and plate; and the upperefi'd' of this screw 18 screws into thelower end of thepassage 8 inthe spindle.

The screw 1 18 has a central passage and a plurality of lateral outlets 21 whichopen into the annular chamber 19.

Around the screw 1 provide a"r1ng or collar 22 which latter seats on the plate 17 ing the latter upwardly will rigidly retain n I and whose vertical thickness is such that i 10 passa 35 the chamber. v

' The distributor chamber extends about the l of the spindle.

I A 1,aoo,eaa

- those needles in place in the openings 15 of the annular flange.

From the foregoing explanation it will be understood that the vertical passage 8 5 of the spindle 7 communicates at its lower end with the chamber 19 that is formed by the shell and the plate 17,the communication between said passage 8 k and chamber 19 being by means of the screw- 20 and lateral outlets 21.

It is therefore to be understood that the shell 10 and plate 17 together form a chambered head and that said head is carried on the lower end of the spindle and is therefore revolved with the latter. As the outlets or nozzle-openings 13 are located in the vertical flange of the shell and the needles 14 extend horizontally therethrough, said needles will revolve in a hOIlzontal plane.

. The shell 10 and the circular plate 17 together form a chamberedhead which lat-' ter revolves in a horizontal plane because -,.,it is carried on the lower end of. the rotating vertical spindle.

Around the head and the needles projecting therefrom there is provided a shell 23 which has a depending circular wall 24 whose inner side is spaced from "the ends 39 of the needles 14. At the upper side of this shell 23 I provide anannular distributor-chamber 25 with a supply-pipe 26 at one side of the latter, whereby a setting solution may be! continuously supplied to spindle 7 and is located in aplane above the rotary head. I

I Between the. rotary head and the distributor-chamber 25, I preferably locate a baflleplate 27. In the'present instance this baflie-' plate has the-'form'of a disk whose up enside is somewhat convex in that its an'nu 'ar rim edge 28 curves downwardly and out- .wardl'v toward the innercircumference of the circular shell wall 24 but is spaced therefrom. j v v I In the present instance the bafile-plate 27 is illustrated as carried on the s mdle 7,

9 and while certain advantages may by thusmounting the baflie, because rotary motion will be imparted thereto, it isnot essential that this baflle be rotated.

Below the shell 23 I show a funnel 29, into which the lower edge of the circular wall 24 extends and directly over which the rotary head is located. v Beneath the funnel I diagrammatically illustrate a reel 30 for a purpose that will p' ntly be explained.

e upper end of the spindle 7, registers ,Wlth a supply tube 31 so that the viscose or.

equiva entsubstance may be dischar from shid tube 31 into the vertical 1 9:;

1 The operation of the apparatus is as fol-- ows:

Viscose, or equivalent solution, is supplied to the passage 8 of the spindle from the lower end of which it flows through the pas sages 20 and 21 of the screw and then into the chamber 19 of the rotary head.

At the same time a setting solution is con-- tinuously fed through pipe 26 into the dis tributor chamber 25 and from the latter said solution drops onto the upper convex side of the baifie-plate 27. If the baffle-plate is carried by and revolves with the spindle 7, as I prefer it should, the setting solution will be given a whirling motion as it leaves the rotating bafile and passes downwardly through the narrow gap 32 between the periphery of the baffle and the inner side of the circular shell-wall 24.

The setting solution flows down the inner side of the shell wall andcrosses the plane through which the horizontally-rotating needles travel.

This downwardly-flowing wall of setting solution does not contact with the ends of the radial needles 14, but an air-g'a 33' or space is maintained between and said solution.

As the head 1017, revolves rapidly with the spindle 7 the viscose solution in chamher 19 is subjected to the centrifugal force set up by the rotation and caused to flow outwardly along the radial needles 14 and discharged from the ends thereof in the form of fine threads.

These threads upon leaving the needleends extend across the air-gap 33 before enpared to' state justwhat efl'ect the air-gap has on the thread, I have found that the strands ejected from the needle ends, when the air-gap is omitted, are broken off into short lengths whereas by providing that gap the strands are ejected in the form of long threads.

'As "the threads enter'the settingsolution their speed of rotation is slowed down with respect to the rotating head so that a twisting together anda simultaneous drawing out of the'threads takes place;

The twisted threads are then directed down. through the funnel 29 and may be wound .on a reel 30 'below'or subjected to a further treatment if desired.

Havingdescribed my inventionfI claim,'-

I. A mechanism for forming threads inthe nee le-ends eluding. a plurality' of needles, revolving means for rapidly moving the needles through a circular path and means for su plying a thread-forming solution to said needles as they move tobe ejected by centrifugal force.

2. A' mechanism for forming threads including a rapidly rotating r having for supplying a thread-forming solution to said needles as they travel with the said member to be ejected therefrom by centrigugal force.

3. A mechanism for forming threads in cluding a rapidly rotating member carrying a plurality of needles which project therefrom and means at the axis ends of the needles for supplying a thread-forming solution to the needles astheytravel with the rotating member whereby to eject the solution by centrifugal force.

4. A mechanism for forming threads including a plurality of needles, means for rapidly moving the needles through a circular pat-h, means for supplying a threadforming solution to the needles as they travel. to .eject the solution by centrifugal force and form a series of threads, and

means for subjecting the threads to the action of a setting medium after they have left the needle-ends.

5. A mechanism for forming threads including a rapidly rotating member having needles projecting therefrom, means for supplying a thread-forming solution to said needles as they travel with the rotating member whereby to eject the solution by centrifugal force and form threads and means about the ends of the needles. for a setting solution into which the threads ejected from the needles may pass.

6. A mechanism for forming threads in-v cludin a hollow spindle, a chambered head carrle by and communicating with the hollow spindle said head having thread-forming openings therein, means for rapidly revolving the head to centrifugally eject material therefrom, an annular shell about the head and spindle, means for continuously supplying a thread-forming solution to the spindle and head, means for continuously supplying a setting solution to the shell and means in the shell above the head for caus mg the setting solution to flow in an annular stream down past the head.

7. A mechanism. for forming threads includmg a rotatable head having a series of circumferential openings, needles carried by 3 the head and. extending through said openmgs, means for supplying a thread-forming solution to the head, means for revolving the head and needles to centrifugall eject the solution along the needles an form threads, and means for subjecting the threads to the action of a setting element. 8, A mechanism for forming threads including a head sustained to rotate in a horizontal plane said head having a series of circumferential openings, needles passing freely through said openings and radiating from the head, means for supplying -a thread-forming. solution to the head, means for revolving the head and needles to cause and means for directing the flow of a setting solution in a plane which crosses the ends of the needles. I

10. The combination with a vertical hollow spindle, of a chambered head carried by and communicating with the interior of the spindle said head having a' series of' circumferential openings, needles radiating from the head at said openings, means for rapidly revolving the head to set up a centrifugal force, means for supplying a threadformmg solution throu hthe spindle to the head to be thrown centrlfugally throu h the openings of. the latter and conveyed y the needles, and means around the needles for maintaining a wall of setting solution to receive the strands ejected from the needles. 11. The combination with a' vertical hollow spindle, of means for rapidly revolving the same, a chambered head carried by the spindle and communicating with the interior,

low spindle, of means for rapidly revolving v the same, a chambered head carried by the s indle and communicating with the-intenor of the latter said head having a series of circumferential outlets, .needles radiatln from andrevolving with the head at sa1 outlets, means for supplying a thread-forming solutionto the head through the 3pmdle to be ejected by centrifugal force from said needles, a shell about the outer ends of the needles, a baflle in the shell above the needles and means for supplying a setting solution to .the shell above the baflle.

13. The combination with a hollow spindle, of means for rapidly revolving the same, a chambered head carried by the spindle and communicating with the interior of the latter said head having a series of circumferential outlets, needles radiating from and revolving with the head at said outlets,

from the needles by centrifugal force, a.

bafile in the shell and carried by and rotating with the spindle and means for supplying a sett'ng solution tothe shell.

14. A d vice for forming threads including a series of needles, means for moving the needles through a circular path to create a centrifugal force, means for supplying a thread-forming solution to said needles, a shell about the needles, means for supplying a setting solution to the shell and a bafile in the shell between the solutionsupply and the needles.

15. A device for forming threads including a series of needles, means for moving the needles through a circular path to create a centrifugal force, means for supplying a thread-forming solution to said needles, a shell about the needles, means for slgfifilying a sett' solution to the shell and b e in the shell tween the setting solution entrance and the needles.

16. A device for forming threads includinga series of needles, means formoving the needles through a circular path to create a centrifugal force, means for supplying a thread-forming solution to said needles, a shell about the needles, means for supplying a setting solution to the shell and a rotating bafile in the shell between the settin' -solution entrance and the needles said be e hava curved rim.

I testimony whereof I m si ature.

JS P. 00 ER.

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