GB1071444A - Apparatus for monitoring the presence of textile fibre strands - Google Patents
Apparatus for monitoring the presence of textile fibre strandsInfo
- Publication number
- GB1071444A GB1071444A GB5107764A GB5107764A GB1071444A GB 1071444 A GB1071444 A GB 1071444A GB 5107764 A GB5107764 A GB 5107764A GB 5107764 A GB5107764 A GB 5107764A GB 1071444 A GB1071444 A GB 1071444A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feeler
- strand
- coil
- signal
- relay
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
- B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
- B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
1,071,444. Stop motions; alarms. S. PEYER. Dec. 15, 1964 [Dec. 17, 1963], No. 51077/64. Headings DID and D1F. Apparatus for monitoring the presence of textile fibre strand 1 such as yarns, slivers or bands and particularly strands with low strength comprises a mechanical feeler member, e.g. a wire 3 engaging the strand, an electric system for oscillating the feeler and a transducer system associated with the feeler whereby during normal operation the oscillations of the feeler are suppressed by contact with the strand and during absence of the strand the resonant oscillations of the feeler build up to produce an electric signal at the output of the transducer to indicate the interruption of the strand. The signal may actuate an acoustical or optical signal or a stop motion. As shown the feeler 3 is rigidly supported in one arm 2a of a V-shaped core 2 and passes adjacent the other arm 2b about which there is a coil 4 fed with A.C. current of a frequency corresponding to the natural resonance frequency of the feeler. The end 3b lies adjacent an air gap 8 in an iron core 6 carrying a coil 7, which is connected to an amplifier 15, a rectifier 16 and a relay 17. The core 6 is pre-magnetized so that vibration of feeler 3 induces currents in coil 7 and causes relay 17 to operate a switch 18 to actuate a signal or stop motion. In a further form (Fig. 2, not shown) there is no independent A.C. source for coil (4) but the coil is fed via an amplifier from a piezoelectric transducer which has a feeler contacting wire (3), thus a positive feed back system is set up to produce growing vibration and voltage once undamped vibration of the feeler (3) is allowed. Connections are also made from this circuit to a rectifier and relay so that absence of the strand results in actuation of the relay and the initiation of a signal or stop motion. In the forms the feeler may be a leaf spring or torsional vibrator with radial arm. The oscillating system may employ the reversed piezoelectric effect.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1548763A CH409726A (en) | 1963-12-17 | 1963-12-17 | Device for monitoring textile fiber strands for interruptions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1071444A true GB1071444A (en) | 1967-06-07 |
Family
ID=4409481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5107764A Expired GB1071444A (en) | 1963-12-17 | 1964-12-15 | Apparatus for monitoring the presence of textile fibre strands |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT248924B (en) |
| CH (1) | CH409726A (en) |
| GB (1) | GB1071444A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122828A (en) * | 1977-04-01 | 1978-10-26 | Aichi Spinning Co | Method of and device for winding yarn under constant tension in bobbin lead spinning machine |
-
1963
- 1963-12-17 CH CH1548763A patent/CH409726A/en unknown
-
1964
- 1964-01-20 AT AT38864A patent/AT248924B/en active
- 1964-12-15 GB GB5107764A patent/GB1071444A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH409726A (en) | 1966-03-15 |
| AT248924B (en) | 1966-08-25 |
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