GB1248844A - Method and apparatus for handling yarn - Google Patents
Method and apparatus for handling yarnInfo
- Publication number
- GB1248844A GB1248844A GB34675/69A GB3467569A GB1248844A GB 1248844 A GB1248844 A GB 1248844A GB 34675/69 A GB34675/69 A GB 34675/69A GB 3467569 A GB3467569 A GB 3467569A GB 1248844 A GB1248844 A GB 1248844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- strand
- nip rolls
- tension
- blade
- 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
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/10—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using knife edges, e.g. heated knife edges, for edge crimping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1,248,844. Crimping yarn. DEERING MILLIKEN RESEARCH CORP. 9 July, 1969 [10 July, 1968], No. 34675/69. Headings DID and D1F. A method of uniformly crimping a running strand of thermoplastic yarn comprises the steps of a) continuously withdrawing a yarn strand 21 from a supply source, b) positively feeding the strand into a heating zone 14 to maintain the strand under relatively low tension in the heating zone to facilitate its contraction during heating, c) heating the strand to between its first and second order transition points, and d) pulling the heated strand about a surface 16 of frictional engagement to continuously bend the strand along its length and impose latent stresses therein, while controlling the rate of withdrawal of the strand from the surface 16 to maintain a uniform tension in the strand leaving the surface 16. In operation, yarn 21 is withdrawn from a pirn 24 and positively fed by driven nip rolls 22, 23 to a plate heater 26. On leaving the heater 26, the yarn 21 is bent round a blade member 28 to impose latent stresses in the yarn. The yarn is withdrawn from the blade 28 by a pair of driven tapered nip rolls 32, 34, and is finally wound on a ring and traveller spinning device 30. Situated between the blade 28 and the tapered nip rolls 32, 34 is a tension sensing device comprising a pivoted lever 50 with an eyelet at one end and a weighted spring 54 at the other.- The pivoted lever is biassed for rotation in a first direction and any change in the tension of the yarn causes the lever to pivot and the yarn is correspondingly shifted along the surface of the tapered nip rolls to thereby increase or decrease the rate of withdrawal of the yarn from the blade 28. The nip rolls 22 and 32 and the ring spindle are driven by means of pulleys and belts 36, 38, 40 from a common drive motor 42, the speed of rotation of each being set by selection of the size of pulley. A pneumatic piston-type damping device 58 may be provided to prevent over-correction of the tension by the lever 50.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US75304768A | 1968-07-10 | 1968-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1248844A true GB1248844A (en) | 1971-10-06 |
Family
ID=25028930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34675/69A Expired GB1248844A (en) | 1968-07-10 | 1969-07-09 | Method and apparatus for handling yarn |
Country Status (7)
Country | Link |
---|---|
US (1) | US3534452A (en) |
BE (1) | BE735838A (en) |
BR (1) | BR6910628D0 (en) |
DE (1) | DE1935105A1 (en) |
FR (1) | FR2012676A1 (en) |
GB (1) | GB1248844A (en) |
NL (1) | NL6910342A (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE530675A (en) * | 1953-08-06 | |||
US3017684A (en) * | 1956-01-24 | 1962-01-23 | Deering Milliken Res Corp | Textile materials and method of making the same |
US2985393A (en) * | 1956-03-12 | 1961-05-23 | Glanzstoff Ag | Winding machine for the production of bobbins with predetermined thread tension overthe bobbin run |
-
1968
- 1968-07-10 US US753047*A patent/US3534452A/en not_active Ceased
-
1969
- 1969-07-04 NL NL6910342A patent/NL6910342A/xx unknown
- 1969-07-09 GB GB34675/69A patent/GB1248844A/en not_active Expired
- 1969-07-09 BE BE735838D patent/BE735838A/xx unknown
- 1969-07-10 DE DE19691935105 patent/DE1935105A1/en active Pending
- 1969-07-10 BR BR210628/69A patent/BR6910628D0/en unknown
- 1969-07-10 FR FR6923451A patent/FR2012676A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NL6910342A (en) | 1970-01-13 |
DE1935105A1 (en) | 1970-01-22 |
FR2012676A1 (en) | 1970-03-20 |
BE735838A (en) | 1970-01-09 |
BR6910628D0 (en) | 1973-02-15 |
US3534452A (en) | 1970-10-20 |
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