US2220403A - Apparatus for production of artificial filaments - Google Patents

Apparatus for production of artificial filaments Download PDF

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Publication number
US2220403A
US2220403A US217996A US21799638A US2220403A US 2220403 A US2220403 A US 2220403A US 217996 A US217996 A US 217996A US 21799638 A US21799638 A US 21799638A US 2220403 A US2220403 A US 2220403A
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United States
Prior art keywords
filaments
lever
shaft
guide
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US217996A
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English (en)
Inventor
Gustav A M Heim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzona Inc
Original Assignee
American Enka Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Enka Corp filed Critical American Enka Corp
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Publication of US2220403A publication Critical patent/US2220403A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/20—Formation of filaments, threads, or the like with varying denier along their length

Definitions

  • This invention relates to artificial silk materials and to a process of and apparatus for producing such materials. More particularly the invention is directed to artificial silk in which 5 the filaments or threads thereof have a nonsystematic denier variation and to an'apparatus and process employed in their production.
  • denier variations is effected by varying the length
  • the various known means for producing systematic denier variations are also unsatisfactory in that undesirable pattern effects are created in the fabrics made therefrom.
  • This invention has as an object the production of artificial filaments, yarns and threads, hereinafter referred to as filaments, in which denier variations thereof are very pronounced and are non-uniform in length and occurrence.
  • filaments in which denier variations thereof are very pronounced and are non-uniform in length and occurrence.
  • ubs the thicker portions of the yarn
  • This invention contemplates the formation'of artificial silk filaments" which have denier variations of relatively high degree While such variations are substantially free of systematic, re-
  • the mechanism contemplated by this invention in its specific preferred embodiment comprises a conoid drive, the shifting of the belt of which will change the frequency of engagement of electrical contact memberswhich are initially responsible for the denier variations in the filaments.
  • this invention has as an object the d provision of a process for the production of. artificial silk filaments whereby novel effects will be produced in fabric in which they are incorpo rated, the novel effects resulting from the nons'ystematic variations in the denier of the filaments and the nubs formed at varying intervals.
  • This is particularly pleasing because it has been found that materials wholly orpartly fabricated of filaments having non-systematic, irregular denier variations are obtainable, even when dyed, printed or otherwise colored in a single operation. Moreover, they have varying dyeing characteristics and multitudinous unpredictable color effects.
  • Figure l is a diagrammatic View .of one form of apparatus constructed in accordance with the 56 invention for spinning artificial filaments in which the guide deviceintroduced in the path of travel of the filaments from the spinneret to the collecting device for causing denier variations therein is shown in operative position;- 55
  • Figure 2 is a diagrammatic: illustration of part of the mechanism illustrated in Figure 1, but
  • Figure 3 is a sectional view' taken on line 3--3- of Figure 2;
  • Figure 4 is a detailed view taken on line 4-4 of Figure 2.
  • the numeral I0 designates a spinneret positioned as shown in a coagulating bath II'.
  • a thread guide I2 may be provided in the bath, although this is not necessary.
  • a spinning solution is caused to be extruded from the spinneret I0 as filaments I3 in accordance with any of the well known practices.
  • the filaments are drawn through the coagulating bath II and may be then directed around the thread guide I2 whereupon they are propelled to a draw off godet or collecting device I4 such as a bobbin or centrifugal bucket operated in accordance with the usual practice.
  • Thread guide I2 may be omitted and the filaments led directly from the spinneret to the collecting device.
  • a pivoted lever or pendulum I5 is positioned between the draw off device I4 and spinneret III "a pivoted lever or pendulum I5 is positioned.
  • Lever I5 is fixed to a shaft I6 and mounted for oscillation therewith.
  • lever I5 At its free end lever I5 is provided with a guide roller I'I.
  • lever I8 Arranged on lever I5 between guide roller I and the shaft I6 and preferably close to the shaft is another guide roller I8. Succeeding portions of filaments I3 in their passage to the draw off device I4 after being directed around thread guide I2 are directed over guide roller I1 and then under guide roller I8 whereupon they pass through traverse guide I 9 adjacent the draw off device.
  • the filaments are caused to follow the course provided by the arrangement of lever I5 and guide rollers I1 and I8 and since lever I5 is oscillated within a varying sector during a spinning operation, succeeding portions of the filaments will be caused to extend and travel in paths of different lengths between spinneret I6 and draw offvdevice I4.
  • Guide roller I! has its shaft mounted for adjustment within slot 20 in lever I5 and since it is the movement of guide roller I! which is primarily responsible for the change in the filament path, similar adjustability of guide roller I8 is not necessary.
  • shaft I6 is provided with a fixed extension 2
  • the operating mechanism for causing lever I5 to oscillate is constructed in a manner which will cause the lever to oscillate irregularly and nonsystematically within a varying sector.
  • This meechanism is provided with a main electrical circuit 25 and an auxiliary control circuit 26.
  • Control circuit-26 includes an electrical power source 28, an electro-magnet 29, armature 36,
  • a driving shaft 31 mounted in bearings 38 is arranged adjacent to and parallel with rail 3
  • shaft 31 has keyed thereto a gear 40 which is maintained inconstant'engagement with a wide slid- 1 ing gear 4
  • is formed on the hub of a cone 42,..of a friction clutch 43 and the hub is mounted for rotation upon a shaft 44 which is mounted for rotation in bearing 45.
  • Fixed to shaft 44 is a friction clutch member 46 which is 2 adaptedtto be engaged by the cone 42, which member 46 is provided with a sprocket 41 having mounted thereon a chain 48.
  • Chain .48 is mounted over a sprocket 49 which is in. turn keyed to shaft I6 whereby the lever I5, 2 shaft I6 sprockets 4'! and 49 and chain 48 are all caused to move in unison. As is shown in Figure 2 any desired number of levers I5 may be mounted on shaft I6, depending upon the number of spinning pointsemployed. 3
  • the hub of cone clutch member 42 is provided with a peripheral groove 50 in which is engaged a clutch yoke 5
  • Lever 52 is biased by spring 54 to cause the frictional engagement of cone 42 and 3 member'46 of the clutch. Therefore, in normal operation the clutch members are engaged and the power applied to shaft 31 through pulley 39, is transmitted to the cone 42 and due to its fric-' tional engagement with clutch member 46, the 4 latter through the medium of the sprockets and chain, maintains shaft I6 in a position where extension 2I is in its upper position in'engagement with stop 22. Consequently levers i5 would be normally biased to the uppermost extreme of 4 the path of oscillation.
  • Pivoted lever 52 has thereon the armature 55 of electro-magnet 56 the latter forming a part of the maincircuit 25.
  • Circuit 25 includes a source of electrical energy 51, leads 58, 59 and 66 and a quick action switch 6
  • Upon the closing of switch 6
  • Cam wheel 62 is fixedly supported on shaft 31 and cam wheel 63 is fixedly supported upon a shaft 66 which is positioned parallel to rail 32 in a manner corresponding to the relative arrangement between rail 31 and shaft 31.
  • Shaft 56 is mounted in bearings BI and a cone pulley 68 is fixed thereto.
  • a similar cone pulley 69 in reverse position is fixed to shaft 3'! and the two pulleys are connected by a shiftable belt H1.
  • the actuation of contacting members 35 and 36 by the mechanism just described will be effected upon the application of power to pulley 39 causing shaft 31 and cam wheel 62 to rotate.
  • shaft 66 and cam wheel 63 will be caused to rotate at the same or different speeds in response to the position of belt w. contact of the members, the shafts are operated at different speeds and the relative speeds may be changed by automatic or mechanical shifting of the belt. Due to the relative movements of the shafts and the cam wheels the period of duration of contact and the frequency of contact of the members 35 and 36 is continuously changed. This causes a difference in the sized arcs through which the lever [5 passes. The contact members at times will move in the same direction at different speeds, in the same direction at the same speed, in opposite directions at different speeds and in opposite directions at the same speed.
  • W filaments of irregularly Varying denier produced by the wet or coagulation method and composed of reconstituted cellulose, such as viscose or cuprammonium silk it may be applied likewise to filaments produced by the dry or evaporative method, more specifically filaments or threads having as a base cellulose acetate or other cellulose derivatives.
  • a drawoff device comprising means for forming filaments, a drawoff device, a thread guide mounted for vertical oscillation interposed in the path of travel of the filaments between the forming means and the draw-ofi device, a main electric circuit for effecting movement of the thread guide when closed, a second control circuit for closing the main circuit, and constantly variable mechanical means for opening and closing the control circuit at non-systematic intervals to cause corresponding periods of energization of the main circuit and resultant irregular and indefinite upward movement of the thread guide, the downward movement being controlled by gravity.
  • an apparatus for producing artificial silk including means for forming filaments; a drawoff device, a thread guide mounted for oscilla tion interposed in the path of travel of said filaments intermediate the forming means and the draw-off device, said guide being operatively connected to a friction clutch, means for irregularly operating said clutch to move said guide in one direction and means for moving the guide in the opposite direction.
  • An apparatus for producing artificialfilaments comprising means for forming filaments, a draw-off device, a thread guide interposed in the path of travel of said filaments from said forming means to said draw-off device, means for causing said guide to move irregularly in one direction including a friction clutch operatively connected to the guide, an electric circuit for effecting actuation of the clutch, a second electric circuit containing wiping contactors for controlling the energization of the first circuit, and irregularly driven rotating cams irregularly moving the contactors to cause opening and closing of thes econd circuit and means for returning the guide to its original position.
  • An apparatus for producing artificial filaments comprising means for forming filaments, a draw-01f device, a guide for said filaments in their path of travel intermediate the forming means and the draw-off device including a con- 4 trolled throw oscillating lever with guide rollers mounted thereon, means' to irregularly raise the lever of the guide comprising a friction clutch operatively connected thereto, an electric circuit actuated by irregularly driven rotating cams and 5 means to lower the lever of the guide.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US217996A 1937-07-28 1938-07-07 Apparatus for production of artificial filaments Expired - Lifetime US2220403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE516458X 1937-07-28

Publications (1)

Publication Number Publication Date
US2220403A true US2220403A (en) 1940-11-05

Family

ID=6549265

Family Applications (1)

Application Number Title Priority Date Filing Date
US217996A Expired - Lifetime US2220403A (en) 1937-07-28 1938-07-07 Apparatus for production of artificial filaments

Country Status (4)

Country Link
US (1) US2220403A (de)
FR (1) FR839993A (de)
GB (1) GB516458A (de)
NL (1) NL49473C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562760A (en) * 1948-02-18 1951-07-31 American Enka Corp Production of novelty yarns, fabrics, and the like
US2847703A (en) * 1953-09-04 1958-08-19 American Enka Corp Apparatus for producing varying denier filaments

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562760A (en) * 1948-02-18 1951-07-31 American Enka Corp Production of novelty yarns, fabrics, and the like
US2847703A (en) * 1953-09-04 1958-08-19 American Enka Corp Apparatus for producing varying denier filaments

Also Published As

Publication number Publication date
GB516458A (en) 1940-01-02
NL49473C (de)
FR839993A (fr) 1939-04-17

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