GB1184583A - Improvements in or relating to Weft Stop Motions on Looms. - Google Patents
Improvements in or relating to Weft Stop Motions on Looms.Info
- Publication number
- GB1184583A GB1184583A GB25194/67A GB2519467A GB1184583A GB 1184583 A GB1184583 A GB 1184583A GB 25194/67 A GB25194/67 A GB 25194/67A GB 2519467 A GB2519467 A GB 2519467A GB 1184583 A GB1184583 A GB 1184583A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- loom
- weft
- detector
- shuttle
- 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
- 230000033001 locomotion Effects 0.000 title abstract 3
- 239000013078 crystal Substances 0.000 abstract 4
- 230000001939 inductive effect Effects 0.000 abstract 2
- 230000003534 oscillatory effect Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/18—Automatic stop motions
- D03D51/34—Weft stop motions
-
- 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
- B65H63/0327—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 using piezoelectric sensing means
-
- 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)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
1,184,583. Loom stop motions. HEBERLEIN & CO. A.G. 31 May, 1967 [31 May, 1966; 11 May, 1967], No. 25194/67. Heading D1E. A weft stop motion for a loom comprises an electro-mechanical transducer mounted in the shuttle of a loom which is set into vibration by the unwinding of the weft from its spool and applies voltage to an inductive circuit which by an inductive coupling controls a detector circuit on the loom to generate a signal for stopping the loom if the weft breaks. As shown in Fig. 1 a resilient rod 5 engaged and vibrated by the running weft 7 is coupled by member 6 to a piezoelectric crystal 2 which generates a voltage which is applied to an oscillatory circuit (Fig. 2) which is housed in the base 1. This circuit comprises in addition to the piezo-electric crystal 2 a variable capacitance diode 8, a resistance 9, a capacitor 10 and an inductor coil 11. A detector circuit which may be mounted on the sley comprises, Fig. 3, a high-frequency generator 12 which through a resistance 13 causes a resonant circuit 14 to oscillate. An inductor coil 20 of the latter is connected to a demodulator 15 to give a fixed D.C. voltage output U when the shuttle is not in the vicinity of the detector. The impedance of the resonant circuit 8-11 varies in accordance with whether or not the rod 5 and piezoelectric crystal 2 are vibrating and accordingly, as the shuttle passes the detector, a variation in the reaction with detector circuit is obtained giving a variation in the output U which is utilised as a signal to stop the loom when the weft is broken. Instead of the piezoelectric crystal 2 other electro mechanical transducers can be used such as vibrating contacts in a resistance circuit or a magnet vibrating in a coil. Other alternative oscillatory and detector circuits are also described.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH784366A CH441172A (en) | 1966-05-31 | 1966-05-31 | Weft thread monitor on a loom |
| CH666867A CH455672A (en) | 1966-05-31 | 1967-05-11 | Weft thread monitor on a loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1184583A true GB1184583A (en) | 1970-03-18 |
Family
ID=25699955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25194/67A Expired GB1184583A (en) | 1966-05-31 | 1967-05-31 | Improvements in or relating to Weft Stop Motions on Looms. |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE699304A (en) |
| CH (1) | CH455672A (en) |
| DE (1) | DE1710274A1 (en) |
| GB (1) | GB1184583A (en) |
| NL (1) | NL6707545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970115A (en) * | 1974-05-25 | 1976-07-20 | Aktiengesellschaft Gebruder Loepfe | Device for monitoring the yarn travel in the shuttle of a shuttle loom |
| GB2136832A (en) * | 1983-03-18 | 1984-09-26 | Elitex Zavody Textilniho | Thread motion detector |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH491228A (en) * | 1968-05-17 | 1970-05-31 | Heberlein & Co Ag | Weft thread monitor on a loom |
| DE9215498U1 (en) * | 1992-11-13 | 1994-03-17 | Novatech GmbH Siebe und Technologie für Papier, 72760 Reutlingen | Pull-through gripper for inserting an auxiliary weft thread into the seam weaving compartment in a seam weaving machine |
-
1967
- 1967-05-11 CH CH666867A patent/CH455672A/en unknown
- 1967-05-31 GB GB25194/67A patent/GB1184583A/en not_active Expired
- 1967-05-31 NL NL6707545A patent/NL6707545A/xx unknown
- 1967-05-31 DE DE19671710274 patent/DE1710274A1/en active Pending
- 1967-05-31 BE BE699304D patent/BE699304A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970115A (en) * | 1974-05-25 | 1976-07-20 | Aktiengesellschaft Gebruder Loepfe | Device for monitoring the yarn travel in the shuttle of a shuttle loom |
| GB2136832A (en) * | 1983-03-18 | 1984-09-26 | Elitex Zavody Textilniho | Thread motion detector |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6707545A (en) | 1967-12-01 |
| CH455672A (en) | 1968-07-15 |
| DE1710274A1 (en) | 1971-10-14 |
| BE699304A (en) | 1967-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |