GB879574A - Improvements in or relating to stop motions for warping machines - Google Patents
Improvements in or relating to stop motions for warping machinesInfo
- Publication number
- GB879574A GB879574A GB39957/57A GB3995757A GB879574A GB 879574 A GB879574 A GB 879574A GB 39957/57 A GB39957/57 A GB 39957/57A GB 3995757 A GB3995757 A GB 3995757A GB 879574 A GB879574 A GB 879574A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feeler
- yarn
- relay
- thyratron
- contact
- 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
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
879,574. Warp stop-motions. RUTI MACHINERY WORKS Ltd. Dec. 23, 1957 [Dec. 28, 1956], No. 39957/57. Class 142(1) In a warp stop-motion having a feeler for each yarn, the failure of a yarn causes the feeler to complete a circuit whereby a thyratron will fire and a relay will cause the loom to stop. In one embodiment (Fig. 2), each yarn passes over a feeler 19 urged upwards by a spring 25, the gearing being guided between guides 31. When a yarn fails, the feeler 19 moves upwards to engage a contact 24 thereby closing a contact 50 (Fig. 3). A condenser 47 is charged gradually and when the voltage of an electrode 43 reaches the ignition value the thyratron fires and a relay 44 operates a contact 51 in the circuit of an electromagnet which stops the machine. The slight delay in firing can be adjusted by suitable choice of the condenser 47 and of a resistance 49. If no time lag is required, the condenser can be dispensed with. In a second embodiment (Fig. 5) the feeler 71 pivots about a shaft 64 and on yarn failure the respective feeler falls and engages a rod 75 thereby causing the turned down end 65 of the shaft 64 to close the contact 50. With either embodiment, the circuit contains a spring loaded switch 46 which when opened extinguishes the thyratron and when reclosed restores the stopmotion to its initial position. Alternatively, a resistance is inserted between the relay 44 and one pole of the current source and a normally open switch is provided between the end of the resistance remote from the one pole of the source and the other pole of the source whereby on closure of the switch the source is short circuited and the relay is de-energized. Each thyratron 40 is arranged in an upright member 10 at the same level as its associated group of feelers to provide a visual indication of yarn failure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH879574X | 1956-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB879574A true GB879574A (en) | 1961-10-11 |
Family
ID=4544717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39957/57A Expired GB879574A (en) | 1956-12-28 | 1957-12-23 | Improvements in or relating to stop motions for warping machines |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1098454B (en) |
GB (1) | GB879574A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4935999A (en) * | 1988-12-30 | 1990-06-26 | Lindly & Company, Inc. | Apparatus for detecting tight ends in a sheet of yarns |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2436021A (en) * | 1945-05-10 | 1948-02-17 | Crompton & Knowles Loom Works | Electric warp stop motion for looms |
US2432793A (en) * | 1945-06-30 | 1947-12-16 | Crompton & Knowles Loom Works | Photoelectric weft detector for looms |
US2436023A (en) * | 1946-05-04 | 1948-02-17 | Crompton & Knowles Loom Works | Electric warp stop motion for looms |
CH256816A (en) * | 1947-03-27 | 1948-09-15 | Fitz Adolf | Electric thread monitor device on a bobbin frame, for example on a shear gate. |
CH283390A (en) * | 1950-03-08 | 1952-06-15 | Benninger Ag Maschf | Electric thread monitor device on a slip gate. |
DE850730C (en) * | 1950-04-28 | 1952-09-29 | H E Schniewind Fa | Photoelectric weft thread monitor |
CH299663A (en) * | 1952-01-14 | 1954-06-30 | Rueti Ag Maschf | Weft bobbin sensor with photocell on looms. |
-
1957
- 1957-01-19 DE DEM32963A patent/DE1098454B/en active Pending
- 1957-12-23 GB GB39957/57A patent/GB879574A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4935999A (en) * | 1988-12-30 | 1990-06-26 | Lindly & Company, Inc. | Apparatus for detecting tight ends in a sheet of yarns |
Also Published As
Publication number | Publication date |
---|---|
DE1098454B (en) | 1961-01-26 |
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