US2447982A

US2447982A - Method and apparatus for handling continuous yarns and the like

Info

Publication number: US2447982A
Application number: US588835A
Authority: US
Inventors: Frederick W Koster
Original assignee: American Viscose Corp
Current assignee: Akzo Nobel UK PLC
Priority date: 1945-04-17
Filing date: 1945-04-17
Publication date: 1948-08-24
Anticipated expiration: 1965-08-24

Description

Aug. 24, 1948. F. w. KOSTER 2,447,982

. IETHOD AND APPARATUS FOR HANDLING CONTINUOUS YARNS AND THE LIKE Filed April 17, 1945 Ill/02a. 9

7 I IV;ENTOR.

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' is made during such Patented Aug. 24, 1948 amass METHOD AND CONTINUOUS YARNS AND Frederick W. Koster,

to American Viscose APPARATUS FOR HANDLING THE LIKE walllngford; Pa... assignor Corporation, Wilmington,

Del., a corporation of Delaware Application April 17, 1945, Serial No. 588,835 7 Claims. (Cl. 242- 1) The present invention relates to methods and apparatus for the disposition or deposition of filamentary material of continuous nature; such as yarns. tows, cords, single continuous filaments, and the like.

For certain purposes, it is' desirable to deposit continuous filamentary material in the form of over-lapping loops or coils. For example, a continuous yarn may be deposited in a series of loops which are made to over-lap by virtue of relative motion of the surface upon which the deposit time as the deposit is made. For example, yarns which need to be treated with fluids or liquids may advantageously be disposed on the upper surface of a continuously moving conveyor, especially of foraminous character, to present the yarn in an exposed and yet compact condition so that effective liquid treatment can be conveniently performed upon the yarn.

The primary object of the present invention is to provide a novel and eflicient method and ap- I paratus for depositing a continuous material, such as a yarn, in the form of a heaped coilupon a stationary surface or in the form of numerous staggered, partially over-lapping loops upon a continuously traveling surface. These and other objects of the invention are accomplished generally by a special method of utilizing a fluid yarn feeding and depositing stream. The stream preferably has a high velocity and travels in the direction it is desired to feed the yarn or other material where the material is first introduced into the stream so that by virtue of the suction produced at the point of entrance of material into the stream, the material is continuously drawn through the stream mainly by virtue of the flowing action of the of the channel, the stream is discharged into the atmosphere in a direction making an angle to that plane which contains the approximate direction of entrance of the strand into the stream and radiates from such direction to the position of discharge so that the discharge of the fluid stream causes rotation of the stream about the portion thereof which the material enters as an axis, the'material being discharged by the stream in proximity to the receiving surface in an approximately circular pattern.

The single figure of the drawing discloses a simple form of apparatus embodying the invention, partially in cross-section, with the receiving surface shown in perspective as viewed from above. 7

Referring more particularly to the drawing, the

stream. From the last portion guide, such as 92- the material thereon passes material 2 to be handled passes over a suitable roller 3, downwardly into the mouth 4 of the depositing device which comprises an outer housing ii within which there is rotatably mounted. as on a bearing 6 of anti-friction type preferably, an annular block 1 into the bore of which, the mouth piece 8 extends partially. I

A suitable annular seal 8 may be provided to prevent excessive leakage of the fluid past the hearing. The fluid may be introduced by the connection l0 and flows into the bore through the annular block 1 in the direction of travel of the entering material as controlled by the flaring mouthpiece 8. The block I has a tube H depending therefrom. The tube communicates with the bore within the block. I and has a bend at I! and a second bend at, I3. The terminal portion of the tube from the-bend "has a discharge opening lland extends at an angle to the axis of the bore of the block I and at an angle to any line radiating from such axis to. the terminal portion so that discharge-of 'thefluid repels the tube in a direction away from thedischarge opening l4. Such repulsion causes rotation of the tube and the block as a unit so that the material discharged from the tube onto the receiving surface l5, such as a belt, takes the form of approximately a circles Thus, as long as a fluid medium is introduced through the connection It, the material 2 will be drawn-into the device and forced through thetube which is continuously rotated by the effect of the portion of the fluid stream being discharged with the filamentary material through the exit ll.

While the receiving surface is shown in the drawing as a continuously traveling belt which may conduct the deposited material through liquid treatment stages, it may instead take the form of an annular rim portion'of a rotating wheel or disk, which shortly after depositing of under liquid or fluid treatment sprays or the like. The material; after treatment, may be withdrawn from thereceiving surface in any suitable manner.

The filamentary material may proceed from any suitable source, such as a wound package of the material to be treated. Alternatively, it may proceed directly from an artificial fiber or lilament spinning machine either as a single continuous filament or as a bundle of a multiplicity of such filaments either twisted or For example, the invention is particularly useful for the disposition of yarns of regenerated cellulose, cellulose derivatives, casein or otherproteins, polymers, copolymers, and condensation untwisted.

products, such as vinyl resins and the nylons. channel havingastrand entrance in approximate The material to be treated 'may of course be alignment with the axis of rotation and a strand composed of natural fibers, such as yarns of cotdischarge portion offset from its strand entrance, ton, wool, silk, and the like. strands of matethe discharge portion being arranged to extend rial not necessarily of textile character, such as t an angle t l planes which t i t n, ropes. cables and Wires may a so be handled by f rotation and radiate therefrom to the discharge he Pres nt inv n n provided they are mportion, and means for forcing a fluid stream cien tly flexible.

as it does the use of a fluid medium for con- 10. strand djgcharge portion of th channeL rla ht twisting is also efl' t d t this 18 channel having a strand entrance in approximate removed when the coils are withdrawn from the alignment mm the axis of mu and a strand receivin surface. The fluid for the conveyin discharge portion offset from its strand entrance,

stream m y suitably be air or other 8 Altefthe discharge portion being arranged to extend treat the material simultaneously with its dep 20 through the channel toward the strand discharge It is to be understood that changes and varia- 5 h l.

6. Apparatus for handling a strand of substanparting from the spirit and scope thereof as detially continuous length comprising a rotatable 1. The method of depositing a strand of subdischarge portion offset from its strand entrance, stant all ontinu us l n th omprising onveythe discharge portion being arranged to extend contains the approximate direction of entrance of 36 sage about the strand entrance for directing a about a portion thereof adjacent the strand ening the strand into the channel. trance, thereby laying the strand on thesur- 40 7. Apparatus for handlingastrand of substanface in coiled form. tially continuous length comprising a housing 2. The method of depositing a strand of subhaving apertures in its end walls, a member rostantiaily continuous length comprising conveytatably mounted in the housing and having an ing it in a laterally enclosed fluid stream and disaxial bore concentrically disposed with respect to charging, above a moving receiving surface, the the apertures, an annular element projecting so that the strand discharge portion of the stream mediate portion thereof extending at 'an angle strand entrance therebyiaying it on the surface in portion extending at an angle to all planes which coiled form with partially overlapped loops. contain the axis of the bore and radiate there- 3. Apparatus for handling a strand of substanfrom to the discharge portion, and means whereby tially continuous length comprising a rotatable 5 a fluid can be supplied to the interior of the housing.

alignment with the axis of rotation and a strand FREDERICK W. KOSTER. discharge portion offset from its strand entrance. the discharge portion being arranged to extend REFERENCES CITED at an an e to a Planes which contain the axis The following references are of record in the of rotation and radiate therefrom to the discharge fil of this patent;

portion. and means for forcing a fluid stream through the channel toward the strand discharge UNITED STATES PATENTS thereof. Number Name Date 4. Apparatus for handling a strand of substan- 854,810 Daniels May 28, 1907 tlally continuous length comprising a rotatable 1,295,139 Edwards Feb. 25, 1919.