US2874410A - Apparatus for uniformly drawing a plurality of filaments - Google Patents

Apparatus for uniformly drawing a plurality of filaments Download PDF

Info

Publication number
US2874410A
US2874410A US440501A US44050154A US2874410A US 2874410 A US2874410 A US 2874410A US 440501 A US440501 A US 440501A US 44050154 A US44050154 A US 44050154A US 2874410 A US2874410 A US 2874410A
Authority
US
United States
Prior art keywords
boiler
pin
draw
pins
temperature
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
US440501A
Other languages
English (en)
Inventor
Kinney George Allison
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Priority to NL96257D priority Critical patent/NL96257C/xx
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US440501A priority patent/US2874410A/en
Priority to FR1133962D priority patent/FR1133962A/fr
Priority to GB18045/55A priority patent/GB796019A/en
Priority to DEP14351A priority patent/DE1171107B/de
Application granted granted Critical
Publication of US2874410A publication Critical patent/US2874410A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224—Selection or control of the temperature during stretching
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/017—Filament stretching apparatus

Definitions

  • Thisinvention is concerned with apparatus for drawing or stretching shaped articles,.such as yarn, ribbons and the like at elevated temperatures, and more particularly with draw or snubbing'pins, which can be held close to a desired temperature.
  • U. S. Patent 2,289,232 discloses the use of a snubbing pin to localize the drawing stresses. Such pins are particularly desirable when drawing fibers prepared from linear condensation polymers, such as the polyamides, polyesters, polyethers, polyanhydrides and polyacetals such as described in U. S. Patent 2,071,251. In many cases it is necessary to heat the draw pin to obtain optimum yarn processing conditions.
  • An object of this invention is to provide apparatus having a plurality of vapor-heated, hollow draw pins readily controllable within close temperature limits at'any desired temperature. More specifically, theinvention has as an object the provision of a manifold unit in which both the condensed fluids and the noncondensable gases are removed efiiciently from the draw pins and replaced by the 2,374,410 Patented Feb. 24,1959
  • the present invention which, briefly described, comprises a sealed manifold unit in which a plurality of hollow draw pins are integrally attached to a boiler.
  • the hollowed-out portion of each draw pin is substantially conical in shape, providing'for the continuous downward flow of condensed liquid back into the boiler and the continuous upward displace? ment of noncondensable gases into the upper section of the boiler. Accumulated noncondensable gases are easily vented by opening valves at the top of the boiler while the heating medium continues to boil.
  • the apparatus of this invention thus serves to heat shaped articles, such as filaments, rods, tubing, ribbons and yarns which are traveling from one place to another and provides a way to localize heat and stress on these articles to permit uniform drawing.
  • the apparatus comprises a' sealed unit, such as a boiler, containing heating media and means, and having a lateral outlet to which is attached, either directly or indirectly, a pin, usually cylindrical, which has an internal, hollow, tapered portion, the wide taper of which is at the end of the pin nearest the unit, the bottom taper sloping in a downward direction'toward the bottom portion of the unit and the upper taper sloping in an upward direction toward the upper section of the unit.
  • a pin usually cylindrical, which has an internal, hollow, tapered portion, the wide taper of which is at the end of the pin nearest the unit, the bottom taper sloping in a downward direction'toward the bottom portion of the unit and the upper taper sloping in an upward direction toward the upper section of the unit.
  • Figure 1 is a view in front elevation of a bank of draw 7 pins, in which the view of the draw pin at the right is taken on A-A of Figure 2 and a portion of the entire front of the right side of the unit is cut away to show detail;
  • Figure 2 is a cross-sectional view taken on the line 22 of Figure l;
  • Figure 3 shows a cross-sectional view of an alternain Figure 2, are provided at intervals in the upper portion of the boiler, and hollow substantially cyclindrical members or blocks 4 are sealed to the boiler at each-opening.
  • the hollow channel 5, shown in Figure 2, in each block is tapered, the widest section corresponding in cross-section to the opening 3 in the boiler.
  • a drilling 8 is made substantially at right angles to and meeting channel 5, and at this location, a trollow cylindrical draw pin 6 is mounted, preferably at right angles to the block and in a downward direction.
  • the hollow portion 7 of the draw pin is also tapered, having substantially th'e shape of acon'e or truncated cone, and is connected to the tapered channel 5 in the block by opening 8 in the side of the block.
  • the continuous flow of vapor to the pin displaces non? condensable gases which may be present in the pin upwards from the pin beingdirected by surface 35,. through the tapered channel in the block, being directed. by surface 36, and into the upper section of the" boiler for. removal at vent 14..
  • horizontal tubes .11 are provided to run the entire length of the boiler near the bottom of the vessel and open to. the outside at each end.
  • Suitable rod-shaped electrical heati'ngfelemcnts 12 are utilized to provide uniform heating throughout the boiler.
  • Preferably twoheating elements are used, one of which is designed to operate continuously and provide about 60-85% of the heat required, while the other is operated by suitable controls to supply heat as required to maintain the unit at the desired temperature.
  • a well 13' is. provided. at one end of the boiler in the upper part of the vessel for a temperature controller to be used in conjunction with the heating elements. Temperature controllers having the required sensitivity to maintain the unit within 1 C.
  • the boiler need not be horizontal, for operation on an inclined plane or in the vertical is possible. Since the horizontal positioning provides for uniform heating of the blocks and pins with a minimum of control, the horizontal positioning is preferred.
  • a vent 14 is provided at each end of the boiler.
  • the vents can be closed to seal the apparatus during operation or opened to vent the noncondensable gases.
  • the vents automatic or hand-operated are usually used to charge the vessel with heating fluid which may be almostany liquid which has a sufficiently high vapor pressure at the operating temperature.
  • Freon 113 (trichlorotrifluoroethane) is very desirable because it causes little or no corrosion. Freon 113 is also advantageous in that its heavy vapors aid the displacement of noncondensable gases (usually air) to the top of the boiler.
  • the amount of heating fluid charged to the vessel is not critical; however, the liquid level should be high enough to cover the tubes containing the heating elements to avoid superheating the vapor, but the level should not be so high that. flooding of the draw pins occurs.
  • the apparatus may be constructed from steel or other common materials; however, it is preferred that the draw pins and temperature control well be fabricated of copper to obtain high sensitivity towards the transfer of heat.
  • the unit should be sealed air-tight by usual techniques and covered with insulation, except for the draw pins or the active sections thereof, to obtain optimum results.
  • Al'simagfi a bonded titanium dioxide is excellent material for this purpose.
  • the apparatus may vary in. size, it will usually be designed to provide draw pins having diameters in the range of about. 0.25 inch to about 2.5. inches. At' high yarn speeds pins of even greater diameter may be used.
  • Operation of the unit is begun by charging the boiler with an excess of the liquid heating medium at regular atmospheric pressure, closing the valves at the vents and refluxing the heating medium at a temperature somewhat higher than the desired operating temperature.
  • Example A bank. containing 6 draw pins was constructed in accordance with the preceding description, using 2.5" steel pipe for the boiler.
  • the remaihder of the unit was also constructed of steel with the exception of the draw pins and temperature control well which were made of copper.
  • the apparatus was covered with a2" layer of asbestos insulation except. for the draw pins,v
  • the removal of the noncondensable gases from the pin depends on the constant how of fresh vapor into the pin and the convenient escape path for the noncon densable gases through the tapered channel. While this design is effective, noncondensable gases can become mix-ed to some extent with condensable vapors .through turbulence andtherefore recirculate through the pin. This is not undesirable when the amount of noncondensable gas present in the vessel is low, which will be the normal case; as pointed out above, the unit may be vented occasionally to void the unit of noncondensable gases.
  • a cylindrical block 15 isv sealed to. the upper part of the hat side of an elongated boiler 16 of semi-circular cross-section.
  • Two tapered channels 17 and 18 are bored in the block such that the lower part 37 of lower channel 17 slopes down- .ward approaching the boiler. and the upper part 38' of upper channel 18 slopes upward. towards the upper section of the boiler, and strip 39 forms part of the baffle arrangement, this strip being the section remaining in the block between the drilled channels or being an added, wedge-fitted or dove-tailed str p.
  • Access into the boiler for the two channels is afforded by openings 19 and 20 in the side of the boiler, leaving strip 40, similar to strip 39, to form part of the battle system.
  • a hollow cylindrical draw pin 21 shown in Figure 4 is embedded in the side of the block near the end of the block.
  • the hollow portion 22 of the draw pin has substantially the shape of a cone or truncated cone and is connected to the two channels in the block by opening 23 cut into the side of the block.
  • Battle 24 is affixed to the block between channels 17 and 18, being aligned with strip 39 divides opening 23 into an upper and lower channel 231 and 232, and extends into the hollow portion of the draw pin for a considerable distance, as shown in Figure 4.
  • Bafile 24 can be conveniently wedge fitted between the end of strip 39 and the opposite edge 41 in block 15.
  • the baffles can, if desired, be tapered, preferably paralleling the walls opposite them.
  • the draw pin is mounted at a downward slope of at least 3, the taper of the hollow portion of the pin being at least 1 greater than the slope of the pin to allow drainage.
  • the boiler is divided into two sections by curved baflle 25 running the entire length of the boiler.
  • One edge of the baffle is affixed to the flat side of the boiler between the openings 19 and 20, while the other edge of the bafiie is attached at a point 26 near the bottom of the curved side of the boiler considerably below the liquid level of the heating fluid 27.
  • Openings 28 in the baffle below the liquid level allow the liquid on each side of the baffle to attain a common level; as an alternative the openings 28 may be omitted if the lower edge of the bafile is not sealed to the. lower part of the boiler wall, leaving a small gap at 26.
  • the unit is also provided with vents 29, tubes 30 for heating elements 31, and a Well 32 for a temperature controller attached at one end of the unit beneath the bafile.
  • noncondensable gases are forced into the upper section of the boiler where they are effectively trapped. Since the upper section of the boiler receives heat from the lower section only indirectly, condensation of vapor occurs in the upper section, causing a continuous gentle flow of vapor from the lower section of the boiler through channels 17 and 232, into the hollow pin, and through channels 231 and 18 into the upper section of the boiler. If desired, the velocity of flow through the unit may be increased by using less insulation over the upper part of the boiler than elsewhere on the unit, thus increasing the heat loss from the upper part of the boiler and promoting condensation of vapor.
  • the hollow pins are attached directly to a boiler of any desired shape.
  • the dimensions of the pin such as its length, are such to provide easy access to the pin by the operator and usually the insulation about the boiler insulates a small portion of the pin.
  • the tapered section inside the pin and the mounting of the pin are fixed so that ready flow of liquid downward and of noncondensable gas upward is effected.
  • the pin and boiler may be equipped with baflles as in the preferred embodiment described above.
  • the apparatus of this invention is self-contained and occupies relatively little space. It is particularly adapted to be used with industrial draw twisting and draw-winding equipment, e. g. of the type disclosed in U. S. Patent 2,474,912.
  • the units areeasily insulated and heat losses can be maintained at a very low level.
  • the apparatus may be made long enough to supply pins for any desired 6 number of drawing positions. In industrial practice, banks containing at least twelve pins will usually be employed, while for ease of maintenance the unit will usually not contain more than about 30 or 40 pins.
  • Apparatus for drawing shaped articles at an elevated temperature comprising a sealed boiler containing a vaporizab'le liquid heating medium and having a plurality of lateral outlets above the liquid level of the heating medium; heating means adapted to heat the heating medium, the heat output of said heating means being regulatable; a temperature controller adapted to control the heat output from the heating means so as to control the temperature of the heating medium; and fitted to each of said lateral outlets in the boiler a draw pin sloping at an angle of at least 3 from horizontal, said pin having a hollow, concentric tapered portion in communication with the lateral outlet, the wide taper being at the end of the pin nearest the lateral outlet, the bottom taper sloping downward from horizontal towards the boiler at an angle of at least 1 and the upper taper sloping upward from horizontal towards the boiler.
  • said heating means comprises a plurality of electric heating elements with the heat output of at least one of said electric heating elements being regulatable and controlled 7 by said temperature controller.
  • Apparatus for drawing shaped articles at an elevated temperature comprising a sealed boiler containing a vaporizable' liquid heating medium and having a plurality of lateral outlets above the liquid level of the heating medium; heating means adapted to heat the heating medium, the heat output of said heating means being regulatable; a temperature controller adapted to control the heat output from the heating means so as to control the temperature of the heating medium; and fitted to each of said lateral outlets in the boiler a draw pin having a hollow, concentric, tapered portion in communication with the lateral outlet, the wide taper being at the end of the pin nearest the lateral outlet, the bottom taper sloping downward from horizontal towards the boiler to drain the condensate from the pin and the upper taper sloping upward from horizontal towards the boiler to remove noncondensables from the pin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US440501A 1954-06-30 1954-06-30 Apparatus for uniformly drawing a plurality of filaments Expired - Lifetime US2874410A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL96257D NL96257C (US07816562-20101019-C00012.png) 1954-06-30
US440501A US2874410A (en) 1954-06-30 1954-06-30 Apparatus for uniformly drawing a plurality of filaments
FR1133962D FR1133962A (fr) 1954-06-30 1955-06-20 Procédé et appareil pour obtenir des structures orientées
GB18045/55A GB796019A (en) 1954-06-30 1955-06-22 Method and apparatus for producing oriented synthetic filamentary structures
DEP14351A DE1171107B (de) 1954-06-30 1955-06-25 Vorrichtung zum Verstrecken von Faeden aus synthetischen Hochpolymeren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440501A US2874410A (en) 1954-06-30 1954-06-30 Apparatus for uniformly drawing a plurality of filaments

Publications (1)

Publication Number Publication Date
US2874410A true US2874410A (en) 1959-02-24

Family

ID=23749001

Family Applications (1)

Application Number Title Priority Date Filing Date
US440501A Expired - Lifetime US2874410A (en) 1954-06-30 1954-06-30 Apparatus for uniformly drawing a plurality of filaments

Country Status (5)

Country Link
US (1) US2874410A (US07816562-20101019-C00012.png)
DE (1) DE1171107B (US07816562-20101019-C00012.png)
FR (1) FR1133962A (US07816562-20101019-C00012.png)
GB (1) GB796019A (US07816562-20101019-C00012.png)
NL (1) NL96257C (US07816562-20101019-C00012.png)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067461A (en) * 1960-11-07 1962-12-11 Monsanto Chemicals Apparatus for producing twisted filament yarn
US3068530A (en) * 1960-11-03 1962-12-18 Du Pont Improved method of operating a heated draw pin with synthetic yarns
US3078588A (en) * 1958-02-20 1963-02-26 Mark Andre Pneumatic driers
US3084393A (en) * 1958-01-14 1963-04-09 Bayer Ag Process for stretching filaments
US3091015A (en) * 1955-06-30 1963-05-28 Du Pont Drawing of nylon
US3099872A (en) * 1959-07-04 1963-08-06 Glanzstoff Ag Method and apparatus for heating and drawing threads
US3114999A (en) * 1960-11-28 1963-12-24 Monsanto Chemicals Method and apparatus for treating and drawing synthetic filament yarns
US3177931A (en) * 1963-08-06 1965-04-13 Turbo Machine Co Apparatus for treating yarn
US3290420A (en) * 1962-07-05 1966-12-06 Columbian Rope Co Process for making thin oriented plastic strips and tape
US3298430A (en) * 1962-10-19 1967-01-17 Kodaira Nobuhisa Apparatus of heat treatment for synthetic yarns
US3367006A (en) * 1964-05-27 1968-02-06 Klinger Mfg Co Ltd Heating apparatus
US3395433A (en) * 1966-07-18 1968-08-06 Kodaira Nobuhisa Apparatus for heat setting synthetic fibre yarns
US3441993A (en) * 1966-11-08 1969-05-06 Willem Stelwagen Apparatus for heat-treating travelling threadlike products
US3717910A (en) * 1969-04-19 1973-02-27 Akzona Inc Heatable pin assembly for treating thread
US3735806A (en) * 1970-12-07 1973-05-29 Trw Inc Unidirectional thermal transfer means
DE2524357A1 (de) * 1974-06-04 1975-12-18 Heating Elements Ltd Vorrichtung zum aufheizen von garnen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1095489A (US07816562-20101019-C00012.png) * 1964-08-25
EP0119953A3 (de) * 1983-01-26 1985-11-21 Retech AG Einrichtung zur Behandlung von länglichen Gebilden
CN115961357B (zh) * 2023-01-09 2024-05-28 安徽京九丝绸股份公司 一种蚕丝的缫丝机

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US120479A (en) * 1871-10-31 Improvement in steam-heaters
GB189925172A (en) * 1899-12-19 1900-10-27 Henry Grandage Improvements in Tubular Fuel Economisers, Hot Air or Water Heaters or the like.
US1597014A (en) * 1924-02-11 1926-08-24 Arthur B Campbell Radiator
US1604397A (en) * 1925-12-21 1926-10-26 Ercanbrack John Edward Water heater with a constrictively-held partition
US1852252A (en) * 1930-05-03 1932-04-05 George C Mcintosh Steam radiator
US2244831A (en) * 1938-07-23 1941-06-10 Edward A Drichta Boiler and heat exchanger
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
US2302792A (en) * 1941-04-24 1942-11-24 American Enka Corp Apparatus for use in the manufacture of rayon
US2533013A (en) * 1949-04-27 1950-12-05 Du Pont Method and apparatus for the twostage draw of synthetic funicular structures
US2561424A (en) * 1948-11-17 1951-07-24 Modine Mfg Co Heat transfer element
US2569735A (en) * 1948-10-07 1951-10-02 Philadelphia Metal Drying Form Steam circulator
US2730609A (en) * 1951-09-18 1956-01-10 Yorkshire Copper Works Ltd Blowpipes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808149A (en) * 1905-06-19 1905-12-26 Silas W Pettit Apparatus for producing or forming filaments from viscose, &c.
BE498035A (US07816562-20101019-C00012.png) * 1947-05-30
NL155414B (nl) * 1947-05-30 Dassault Electronique Frequentiedetector.

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US120479A (en) * 1871-10-31 Improvement in steam-heaters
GB189925172A (en) * 1899-12-19 1900-10-27 Henry Grandage Improvements in Tubular Fuel Economisers, Hot Air or Water Heaters or the like.
US1597014A (en) * 1924-02-11 1926-08-24 Arthur B Campbell Radiator
US1604397A (en) * 1925-12-21 1926-10-26 Ercanbrack John Edward Water heater with a constrictively-held partition
US1852252A (en) * 1930-05-03 1932-04-05 George C Mcintosh Steam radiator
US2244831A (en) * 1938-07-23 1941-06-10 Edward A Drichta Boiler and heat exchanger
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
US2302792A (en) * 1941-04-24 1942-11-24 American Enka Corp Apparatus for use in the manufacture of rayon
US2569735A (en) * 1948-10-07 1951-10-02 Philadelphia Metal Drying Form Steam circulator
US2561424A (en) * 1948-11-17 1951-07-24 Modine Mfg Co Heat transfer element
US2533013A (en) * 1949-04-27 1950-12-05 Du Pont Method and apparatus for the twostage draw of synthetic funicular structures
US2730609A (en) * 1951-09-18 1956-01-10 Yorkshire Copper Works Ltd Blowpipes

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091015A (en) * 1955-06-30 1963-05-28 Du Pont Drawing of nylon
US3084393A (en) * 1958-01-14 1963-04-09 Bayer Ag Process for stretching filaments
US3078588A (en) * 1958-02-20 1963-02-26 Mark Andre Pneumatic driers
US3099872A (en) * 1959-07-04 1963-08-06 Glanzstoff Ag Method and apparatus for heating and drawing threads
US3068530A (en) * 1960-11-03 1962-12-18 Du Pont Improved method of operating a heated draw pin with synthetic yarns
US3067461A (en) * 1960-11-07 1962-12-11 Monsanto Chemicals Apparatus for producing twisted filament yarn
US3114999A (en) * 1960-11-28 1963-12-24 Monsanto Chemicals Method and apparatus for treating and drawing synthetic filament yarns
US3290420A (en) * 1962-07-05 1966-12-06 Columbian Rope Co Process for making thin oriented plastic strips and tape
US3298430A (en) * 1962-10-19 1967-01-17 Kodaira Nobuhisa Apparatus of heat treatment for synthetic yarns
US3177931A (en) * 1963-08-06 1965-04-13 Turbo Machine Co Apparatus for treating yarn
US3367006A (en) * 1964-05-27 1968-02-06 Klinger Mfg Co Ltd Heating apparatus
US3395433A (en) * 1966-07-18 1968-08-06 Kodaira Nobuhisa Apparatus for heat setting synthetic fibre yarns
US3441993A (en) * 1966-11-08 1969-05-06 Willem Stelwagen Apparatus for heat-treating travelling threadlike products
US3717910A (en) * 1969-04-19 1973-02-27 Akzona Inc Heatable pin assembly for treating thread
US3735806A (en) * 1970-12-07 1973-05-29 Trw Inc Unidirectional thermal transfer means
DE2524357A1 (de) * 1974-06-04 1975-12-18 Heating Elements Ltd Vorrichtung zum aufheizen von garnen
US4025753A (en) * 1974-06-04 1977-05-24 Heating Elements Limited Yarn heaters

Also Published As

Publication number Publication date
DE1171107B (de) 1964-05-27
GB796019A (en) 1958-06-04
NL96257C (US07816562-20101019-C00012.png)
FR1133962A (fr) 1957-04-04

Similar Documents

Publication Publication Date Title
US2874410A (en) Apparatus for uniformly drawing a plurality of filaments
DK168118B1 (da) Fremgangsmaade og apparatur til afkoeling af en optisk fiber
US4529378A (en) Heating chamber for processing advancing yarn
US3071838A (en) Apparatus for heat treating thermoplastic yarns
GB1188173A (en) Apparatus for Heat Setting Synthetic Fibre Yarns
US2811787A (en) Removal of condensate from dryer rolls
US4416733A (en) Dry quenching apparatus for hot coke
US2643099A (en) Vapor heated roll
US2568920A (en) Apparatus for treating shaped articles with fluids
US4320583A (en) Steam distribution apparatus for flat paper sheet
US2049050A (en) Evacuation of condensate
US4498959A (en) Cooling attachment for solar distiller
US3694872A (en) Apparatus for drawing thermo-plastic filaments in a high temperature gas vortex
US4332151A (en) Apparatus for heat treatment of synthetic yarns and fibers
US2226828A (en) Distilling system
US1935183A (en) Apparatus for distilling dry cleaners' solvent
US2101461A (en) Extracting and drying system
US1790700A (en) escole
US4528946A (en) Intermediate superheater
US2631385A (en) Apparatus for treatment of strands
SU925255A3 (ru) Устройство дл термообработки пр жи из синтетических волокон
US4037288A (en) Filament liquid quenching apparatus
US1833611A (en) By-pass condenser
US2035872A (en) Dry spinning cell
EP0105975B1 (en) A method for removing condensate from a cylinder, in particular a cylinder for drying paper