GB626716A - Apparatus for ascertaining the mean useful length of the staple of a strand of fibres in or for spinning - Google Patents
Apparatus for ascertaining the mean useful length of the staple of a strand of fibres in or for spinningInfo
- Publication number
- GB626716A GB626716A GB25021/46A GB2502146A GB626716A GB 626716 A GB626716 A GB 626716A GB 25021/46 A GB25021/46 A GB 25021/46A GB 2502146 A GB2502146 A GB 2502146A GB 626716 A GB626716 A GB 626716A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- strand
- sector
- length
- combs
- 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
- 238000009987 spinning Methods 0.000 title 1
- 210000001520 comb Anatomy 0.000 abstract 4
- 238000012360 testing method Methods 0.000 abstract 3
- 230000000881 depressing effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/365—Filiform textiles, e.g. yarns
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
626,716. Testing strands of fibres. LITTY, P. Aug. 22, 1946, No. 25021. Convention date, March 3, 1939. (Class 120 (iii)] Apparatus for ascertaining the mean useful length of the staple of a sliver, roving or similar strand of fibres (i.e. the mean length of all fibres lying side by side in a given cross-section of the strand, measured in the longitudinal direction of the strand), is adapted for feeding and cutting off a predetermined length of the strand which is more than twice the length of the longest fibre, for gripping the cut length at the middle and for combing out the two projecting ends until all loose fibres are removed. The weight of the remaining tuft of fibres can then be compared with the total weight before combing, and the mean useful length of staple determined from the relation :- As shown, a length of fibres a is clamped between plates 31, 32, being positioned laterally by guides 39 which can be swung up for this purpose to the position shown in dotted lines. One end of the fibres is then combed by needle combs 8... 14 mountd on a sector 7 rotated by a handle 5. The sector is mounted on an eccentric bush which is itself driven through reduction gearing so as to advance, the combs towards the fibres with successive revolutions. When one end of the fibres is combed, levers 41 are raised to allow the clamping device to be rotated about 180 degrees, the other end being combed similarly. A bell is arranged to ring after a predetermined number of revolutions of the sector 7 ; the sector is retained in the position shown by engagement of a stop 20 with a pawl 22. Uniform test lengths are obtained by feeding the strand between a roller 45, mounted on the sector spindle 4, and a weighted pressure roller 46 ; pawl 22 is released by depressing, a key 24, and handle 5 is rotated until stop 20 re-engages the pawl, when a knife 49 is operated to sever the test lengths of the strand. In a modification, the combs are pivoted on arms of the sector, and their angular positions are determined by engagement of rollers with a cam groove so that the combs are always directed perpendicularly to the fibres.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE217737X | 1939-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB626716A true GB626716A (en) | 1949-07-20 |
Family
ID=5830910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25021/46A Expired GB626716A (en) | 1939-03-03 | 1946-08-22 | Apparatus for ascertaining the mean useful length of the staple of a strand of fibres in or for spinning |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH217737A (en) |
| FR (1) | FR863480A (en) |
| GB (1) | GB626716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2660889A (en) * | 1952-01-02 | 1953-12-01 | Ralph S Hoisington | Fiber tester |
-
1939
- 1939-09-25 CH CH217737D patent/CH217737A/en unknown
-
1940
- 1940-02-20 FR FR863480D patent/FR863480A/en not_active Expired
-
1946
- 1946-08-22 GB GB25021/46A patent/GB626716A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2660889A (en) * | 1952-01-02 | 1953-12-01 | Ralph S Hoisington | Fiber tester |
Also Published As
| Publication number | Publication date |
|---|---|
| CH217737A (en) | 1941-11-15 |
| FR863480A (en) | 1941-04-02 |
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