US3580293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weaving machine
Assignee: Machinefabriek L te Strake NV
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Filing: 1968-09-03
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Granted: 1971-05-25
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Expires: 1988-09-03
Abstract
Abstract A suction nozzle is movably mounted at one side of the shed of the loom, and is provided with mechanism for displacing the suction nozzle, in synchronism with a beating movement of the reed, from an active position for receiving the free end of a weft to an end position. A locking device is provided for retaining the suction nozzle in such end position during the succeeding reverse movement of the reed, and apparatus is provided for releasing the locking device at the beginning of a succeeding reverse movement of the reed to permit the suction nozzle to return to its active position.
Inventors
- 👤 Theodorus Fransen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:14
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/28; D03D47/30; D03D47/3006; D03D47/3066; D03D47/308
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A weft end suction device for a shuttleless loom having a reciprocable reed, comprising a suction nozzle movably mounted at one side of the shed of the loom, mechanism for displacing the suction nozzle, in synchronism with a beating movement of the reed, from an active position for receiving the free end of a weft to an end position, a locking device for retaining the suction nozzle in such end position during the succeeding reverse movement of the reed, and apparatus for releasing the locking device at the beginning of a subsequent reverse movement of the reed to permit the suction nozzle to return to its active position.
Claim 2
Dependent Claim
108 words
A weft end suction device for a shuttleless loom having a reciprocable reed, comprising a suction nozzle movably mounted at one side of the shed of the loom, mechanism for displacing the suction nozzle, in synchronism with a beating movement of the reed, from an active position for receiving the free end of a weft to an end position, a locking device for retaining the suction nozzle in such end position during the succeeding reverse movement of the reed, and apparatus for releasing the locking device at the beginning of a subsequent reverse movement of the reed to permit the suction nozzle to return to its active position.
Claim 3
Dependent Claim
56 words
A weft end suction device according to claim 1 wherein the suction nozzle is in the form of a block which is provided with suction openings and with a resilient supporting device and is slidably mounted in a guide, and wherein the guide and resilient supporting device are adjustable in a direction parallel to the weft.
Claim 4
Dependent Claim
53 words
A weft end suction device according to claim 2 wherein an actuating member, movable parallel to the warp, is driven by a strike member mounted on a lay sword of the reed, and is provided with a slot extending parallel to the weft through which an arm of the resilient supporting device extends.
Claim 5
Dependent Claim
73 words
A weft end suction device according to claim 1 wherein the suction nozzle is in the form of a block which is provided with a slot-shaped suction opening in the side of the block that is directed toward the fabric, and is slidably mounted in a guide that is provided with a notch in alignment with the slot-shaped suction opening and with a cutter for cutting free weft ends which enter the notch.
Claim 6
Dependent Claim
83 words
A weft end suction device according to claim 1 wherein the suction nozzle is in the form of a block which is provided with a suction opening in one end merging into a slot-shaped suction opening in the side of the block that is directed toward the fabric, and wherein a shutter is mounted on the reed for closing the suction opening in the end of the block while the block is being displaced in synchronism with a beating movement of the reed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |