GB796019A - Method and apparatus for producing oriented synthetic filamentary structures - Google Patents
Method and apparatus for producing oriented synthetic filamentary structuresInfo
- Publication number
- GB796019A GB796019A GB18045/55A GB1804555A GB796019A GB 796019 A GB796019 A GB 796019A GB 18045/55 A GB18045/55 A GB 18045/55A GB 1804555 A GB1804555 A GB 1804555A GB 796019 A GB796019 A GB 796019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boiler
- pin
- block
- hollow
- channels
- 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
Links
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
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)
Abstract
<PICT:0796019/IV (a)/1> <PICT:0796019/IV (a)/2> <PICT:0796019/IV (a)/3> <PICT:0796019/IV (a)/4> Filaments of synthetic high polymers are oriented by hot stretching them over draw or snubbing pins which are hollow, closed at one end and heated internally by supplying hot vapours continuously thereto in such a manner that condensate forming in the pins flows back to the vapour source. As shown in Figs. 1 and 2, an elongated cylindrical boiler 1 is provided with openings 3 at intervals in its upper portion, which openings communicate with tapered interior channels 5 in hollow cylindrical blocks 4. A hollow cylindrical draw or snubbing pin 6 is mounted near the free end of and at right angles to each block 4, the pin pointing downwards at an angle of at least about 3 degrees to the horizontal. The hollow tapered interior 7 of each pin 6 communicates with the tapered interior channel 5 in the block 4 through a drilling 8 in the side of the block. The hollow interior 7 of the pin 6 is tapered sufficiently to overcome the reverse tilt of the pin 6 and provide a downward slope from the end of the pin towards the drilling 8 of at least about 1 degree from the horizontal. Accordingly, vapour from a heating liquid 10 in the boiler which condenses in the pin will drain from the pin along the bottom 33 thereof, through the drilling 8 into the channel 5 in the block 4 and down the slope 34 of the block back into the boiler. At the same time, the continuous flow of vapour to the pin displaces any non-condensible gases present in the pin upwards along the upper surfaces 35, 36 and into the upper section of the boiler 1 for removal through vents 14 normally closed by valves. The boiler is provided near the bottom with two horizontal tubes 11 running its entire length and containing rod-shaped electric heating elements 12. One element is designed to operate continuously and provide about 60-85 per cent of the heat required, and the other is controlled to supply heat as required by means of a thermostat element located in the well 13 at one end of the boiler. In an example, the boiler is provided with six snubbing pins 6 of copper covered with bonded titanium dioxide sleeves and is charged with trichlorotrifluoroethane which is thermostatically maintained at 99 DEG \sB 0.5 DEG C. Under conditions such that considerable amounts of non-condensable gases tend to accumulate in the apparatus, the modified form shown in Figs. 3 and 4 is preferred. The cylindrical block 15 sealed to the upper part of the flat side of an elongated boiler 16 of semi-circular cross-section is provided with two tapered interior channels 17, 18 such that the lower surface 37 of lower channel 17 slopes downwards to the boiler, the upper surface 38 of upper channel 18 slopes upward towards the top of the boiler, and the partition 39 between the channels 17, 18 joins a curved baffle 25 running the entire length of the boiler and having openings 28 below the level of the heating liquid 27 to allow the liquid in each side of the baffle to attain a common level. A hollow cylindrical snubbing pin 21 mounted on the side of and near the free end of the block 15 has a hollow tapered interior 22 which communicates with the channels 17, 18 in the block 15 by an opening 23 in the side of the block. A baffle 24 fixed to the block between the channels 17, 18 is aligned with the partition 39 and divides opening 23 into upper and lower channels 231, 232, and extends into the hollow interior 22 of the pin for a considerable distance (Fig. 4). The boiler 16 is provided with vents 29, tubes 30 for heating elements 31, and a well 32 for the thermostat element. Non-condensable gases are forced into the upper section of the boiler, where they are trapped. Since the upper section of the boiler receives heat from the lower section only indirectly, vapour condenses in the upper section, causing a continuous gentle flow of vapour from the lower section of the boiler through channels 17, 232 into the hollow pin 21, and through channels 231, 18 into the upper section of the boiler. The upper part of the boiler may be left uninsulated in order to increase condensation of vapour in that part and hence the rate of flow of vapour through the hollow pins. In another modification the hollow pins are attached directly to a boiler of any desired shape and a small portion of the pin next to the boiler is thermally insulated. The invention enables the tenperature of the pins to be maintained constant within about 1 DEG C. and the dyeability of the filaments drawn over the pins to be thereby rendered more uniform. U.S.A. Specifications 2,071,251, 2,289,232 and 2,474,912 are referred to.
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 |
---|---|
GB796019A true GB796019A (en) | 1958-06-04 |
Family
ID=23749001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18045/55A Expired GB796019A (en) | 1954-06-30 | 1955-06-22 | Method and apparatus for producing oriented synthetic filamentary structures |
Country Status (5)
Country | Link |
---|---|
US (1) | US2874410A (en) |
DE (1) | DE1171107B (en) |
FR (1) | FR1133962A (en) |
GB (1) | GB796019A (en) |
NL (1) | NL96257C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1245031B (en) * | 1960-11-28 | 1967-07-20 | Monsanto Co | Device for stretching synthetic threads |
CN115961357A (en) * | 2023-01-09 | 2023-04-14 | 安徽京九丝绸股份公司 | Silk reeling machine |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA666693A (en) * | 1955-06-30 | 1963-07-16 | Zimmerman Joseph | Drawing of nylon |
BE574473A (en) * | 1958-01-14 | 1959-05-02 | Bayer Ag | Process for drawing yarns |
US3078588A (en) * | 1958-02-20 | 1963-02-26 | Mark Andre | Pneumatic driers |
NL253396A (en) * | 1959-07-04 | |||
US3068530A (en) * | 1960-11-03 | 1962-12-18 | Du Pont | Improved method of operating a heated draw pin with synthetic yarns |
US3124628A (en) * | 1960-11-07 | 1964-03-10 | Method for producing twisted | |
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 |
GB1098135A (en) * | 1964-05-27 | 1968-01-03 | Klinger Mfg Co Ltd | Yarn heating apparatus |
GB1095489A (en) * | 1964-08-25 | |||
FR1542584A (en) * | 1966-07-18 | Nobuhisa Kodaira | Appliance for heat setting synthetic fibers and threads | |
US3441993A (en) * | 1966-11-08 | 1969-05-06 | Willem Stelwagen | Apparatus for heat-treating travelling threadlike products |
DE1919935C3 (en) * | 1969-04-19 | 1978-09-21 | Enka Ag, 5600 Wuppertal | Fixed, heatable stretch or Fixing pin |
US3735806A (en) * | 1970-12-07 | 1973-05-29 | Trw Inc | Unidirectional thermal transfer means |
GB1513735A (en) * | 1974-06-04 | 1978-06-07 | Heating Elements Ltd | Yarn heater |
EP0119953A3 (en) * | 1983-01-26 | 1985-11-21 | Retech AG | Apparatus for the treatment of elongate bodies |
Family Cites Families (15)
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. |
US808149A (en) * | 1905-06-19 | 1905-12-26 | Silas W Pettit | Apparatus for producing or forming filaments from viscose, &c. |
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 |
NL61873C (en) * | 1941-04-24 | |||
NL155414B (en) * | 1947-05-30 | Dassault Electronique | FREQUENCY DETECTOR. | |
BE498035A (en) * | 1947-05-30 | |||
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 |
NL153050B (en) * | 1949-04-27 | Nederlanden Staat | TWO-POLE FOR MISMITING THE CHARACTERISTIC IMPEDANCE OF A PUPINIZED CABLE LOADER PAIR. | |
US2730609A (en) * | 1951-09-18 | 1956-01-10 | Yorkshire Copper Works Ltd | Blowpipes |
-
0
- NL NL96257D patent/NL96257C/xx active
-
1954
- 1954-06-30 US US440501A patent/US2874410A/en not_active Expired - Lifetime
-
1955
- 1955-06-20 FR FR1133962D patent/FR1133962A/en not_active Expired
- 1955-06-22 GB GB18045/55A patent/GB796019A/en not_active Expired
- 1955-06-25 DE DEP14351A patent/DE1171107B/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1245031B (en) * | 1960-11-28 | 1967-07-20 | Monsanto Co | Device for stretching synthetic threads |
CN115961357A (en) * | 2023-01-09 | 2023-04-14 | 安徽京九丝绸股份公司 | Silk reeling machine |
CN115961357B (en) * | 2023-01-09 | 2024-05-28 | 安徽京九丝绸股份公司 | Silk reeling machine for silk |
Also Published As
Publication number | Publication date |
---|---|
FR1133962A (en) | 1957-04-04 |
DE1171107B (en) | 1964-05-27 |
NL96257C (en) | |
US2874410A (en) | 1959-02-24 |
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