US2173621A - Production of artificial threads - Google Patents
Production of artificial threads Download PDFInfo
- Publication number
- US2173621A US2173621A US170950A US17095037A US2173621A US 2173621 A US2173621 A US 2173621A US 170950 A US170950 A US 170950A US 17095037 A US17095037 A US 17095037A US 2173621 A US2173621 A US 2173621A
- Authority
- US
- United States
- Prior art keywords
- production
- filaments
- artificial threads
- bundle
- threads
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
- D01H7/923—Spinning or twisting arrangements for imparting transient twist, i.e. false twist by means of rotating devices
Definitions
- the process according to the invention consists in the producing during the viscose spinning process according to the centrifugal system, of a thread which is not endless, but is formed by tom filaments.
- the endless bundle comprising a plurality or single filaments, on its passage from the tunnel to the spinning can, is conducted over a scabrous edge or an edge having cutting prominences, while, under the traction effect of the revolving can, it is obliged to slide on this scabrous edge provided on the lower end of the said funnel.
- some of the single filaments forming the bundle are continuously torn or broken, and-.as the bundle of filaments is always 1 Claim. (Cl. 57-2) and according to the count of the thread to be produced and to the desired length of its single filaments.
- the bundle F of single endless filaments enters from above in the pipe A of the funnel and is then conducted by the inclined surface of the part B of this tunnel in the narrow aperture of the part B having a scabrous edge or surface C, on which, by the iriction effect of the bundle sliding around, several of the single filaments are always torn with the result that a thread formed by short fibres leaves the guide D being then twisted and collected in the revolving can.
- the members A, B, C, D may be parts separated the one from the other or united in a'single piece according to the material chosen for them.
- Apparatus for. the production of short-fibered twisted artificial threads comprising a tunnel through which a bundle .of filaments may be passed for delivery to a revolving spinning can,
- said funnel being provided adjacent its lower end during their passage at an angle from the funnel to the revolving can.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Materials For Medical Uses (AREA)
- Artificial Filaments (AREA)
Description
Sept. 19, 1939.
. G. CAMPOLUNGHI PRODUCTION OF ARTIFICIAL THREADS.
Filed Oct. 25, 1951 v XVI 4 70/? Patented Sept. 19, 1939 UNITED STATES.
2,173,621 PRODUCTION OF ARTIFICIAL THREADS Giovanni Campolunghi, Rome, Italy Application October 25, 1937, Serial No. 170,950
In Italy November 11, 1936 Several methods are already known for continuously transforming endless artificial filaments to staple fibre or in twisted threads of short fibres, but hitherto these methods have been never united directly with the spinning operation.
According to the known methods the said purpose was met either by cutting or by tearing the finished endless filaments to pieces of the desired length, and proceedings of this lrlnd are decribed for instance in the United States Patent No. 2,012,723, or in the British Patent No. 424,683, or in the Austrian Patent No. 143,153 and in other patents.
On the contrary, the process according to the invention consists in the producing during the viscose spinning process according to the centrifugal system, of a thread which is not endless, but is formed by tom filaments. According to the invention the endless bundle comprising a plurality or single filaments, on its passage from the tunnel to the spinning can, is conduced over a scabrous edge or an edge having cutting prominences, while, under the traction effect of the revolving can, it is obliged to slide on this scabrous edge provided on the lower end of the said funnel. In this way some of the single filaments forming the bundleare continuously torn or broken, and-.as the bundle of filaments is always 1 Claim. (Cl. 57-2) and according to the count of the thread to be produced and to the desired length of its single filaments.
A device suitable for the realisation of the described proceeding is shown by way of example in 5 the accompanying schematical drawing, but it has to be understood that this device may be modified in any details.
' As it is shown in the drawing, the bundle F of single endless filaments enters from above in the pipe A of the funnel and is then conduced by the inclined surface of the part B of this tunnel in the narrow aperture of the part B having a scabrous edge or surface C, on which, by the iriction effect of the bundle sliding around, several of the single filaments are always torn with the result that a thread formed by short fibres leaves the guide D being then twisted and collected in the revolving can. I
The members A, B, C, D may be parts separated the one from the other or united in a'single piece according to the material chosen for them.
What I claim is:
Apparatus for. the production of short-fibered twisted artificial threads comprising a tunnel through which a bundle .of filaments may be passed for delivery to a revolving spinning can,
said funnel being provided adjacent its lower end during their passage at an angle from the funnel to the revolving can.
GIOVANNI CAMPOLUNGHI.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2173621X | 1936-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2173621A true US2173621A (en) | 1939-09-19 |
Family
ID=11435215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US170950A Expired - Lifetime US2173621A (en) | 1936-11-11 | 1937-10-25 | Production of artificial threads |
Country Status (1)
Country | Link |
---|---|
US (1) | US2173621A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3007298A (en) * | 1955-05-31 | 1961-11-07 | British Cclanese Ltd | Method and apparatus for jet bulking of yarn |
US3364540A (en) * | 1964-08-03 | 1968-01-23 | Monsanto Co | Method and apparatus for texturing thermoplastic yarn |
-
1937
- 1937-10-25 US US170950A patent/US2173621A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3007298A (en) * | 1955-05-31 | 1961-11-07 | British Cclanese Ltd | Method and apparatus for jet bulking of yarn |
US3364540A (en) * | 1964-08-03 | 1968-01-23 | Monsanto Co | Method and apparatus for texturing thermoplastic yarn |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2221716A (en) | Manufacture and production of staple fiber | |
DE602808C (en) | Pair of needle rollers for opening up fiber material | |
DE1941084A1 (en) | Method and device for the open-end spinning of textile yarns | |
DE1941426A1 (en) | Method and device for producing spun threads from textile fibers | |
DE1904561B2 (en) | Fiber feeder | |
DE1053137B (en) | Method and device for producing high-strength, especially thick, viscose thread bundles | |
US2173621A (en) | Production of artificial threads | |
DE2317261C3 (en) | Method and device for producing a spun yarn from at least two fiber ribbons | |
DE1804948A1 (en) | Method and device for spinning multi-component yarns | |
US1499607A (en) | Fiber-treating appliance for drawing and preparing fibers for spinning into yarns | |
ES433873A1 (en) | Production of bulky yarns | |
DE2235270A1 (en) | METHOD FOR GENERATING A FIBER FLUOR | |
US2213793A (en) | Method of making yarn | |
AT341386B (en) | DEVICE FOR SPINNING TEXTILE FIBERS | |
US2232348A (en) | Method of and apparatus for the manufacture of extensible bands or ribbons of staple fiber | |
DE854829C (en) | Screw knife separator for endless synthetic thread belts u. like | |
DE721045C (en) | Method and device for the production of a warpable sliver from synthetic threads | |
EP0447823A2 (en) | Spinning process and device for producing a yarn | |
DE1294589B (en) | Device for the production of crimped threads or the like. | |
US1790979A (en) | William | |
AT230011B (en) | Method and device for opening the fiber bundle separated from a thread cable | |
DE680008C (en) | Machine for the production of a draftable sliver | |
US2111502A (en) | Manufacture of artificial silk | |
DE745650C (en) | Process and device for spinning, post-treatment, cutting and drying of artificial threads for the production of rayon in a continuous, uninterrupted operation | |
DE739549C (en) | Method and device for dissolving post-treated and dried endless synthetic thread bands into individual threads |