Patent US3901286A successfully refreshed from Google Patents.
US3901286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weft tensioning and cutting means
Assignee: Rueti Te Strake BV
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Filing: 1973-08-20
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Granted: 1975-08-26
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Expires: 1993-08-20
Abstract
Abstract A weaving machine comprising a weft-inserting device on one side and means carried by the reed on the opposite side adapted to catch, grasp and tension the weft yarn inserted through the weaving shed, wherein the means for catching, grasping and tensioning the wefts comprises an air injector, the suction opening of which is located at the end of the weft inserting passage way and the outlet of which is bent towards the beating up line in the cloth, a slit in the side wall of said air injector extending from the suction opening along a portion of the length of the injector into the beating up direction of the reed, a thread clamp being located in a fixed position between the lateral edge of the cloth and the air injector, such that with the reed in the beating up position the thread clamp is positioned in the path of the end portion of the inserted weft extending from the lateral edge of the cloth towards the air injector.
Inventors
- 👤 Geert Jan Vermeulen
- 👤 Hubertus Henricus Aarts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:05
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/28; D03D47/30; D03D47/3066; D03D47/308
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A weaving machine comprising a reciprocable reed, two sheets of warp threads which are momentarily held in diverging planes to form with the reed a weaving shed, a weft-inserting device on one side of the machine and means carried by the reed on the opposite side of the machine adapted to catch, grasp and tension a weft yarn inserted through the weaving shed, characterized in that the means for catching, grasping and tensioning the weft comprises an air injector, the suction opening of which is located at the end of the weft inserting passage way and the outlet of which is bent toward the beating up line in the cloth, a slit in the side wall of said air injector extending from the suction opening along a portion of the length of the injector in the beating up direction of the reed, a thread clamp mounted on the machine in a fixed position, between the lateral edge of the cloth and the path of reciprocation of the air injector, such that with the reed in the beating up position the thread clamp is positioned in the path of the end portion of the inserted weft extending from the lateral edge of the cloth toward the air injector.
Claim 2
Dependent Claim
207 words
A weaving machine comprising a reciprocable reed, two sheets of warp threads which are momentarily held in diverging planes to form with the reed a weaving shed, a weft-inserting device on one side of the machine and means carried by the reed on the opposite side of the machine adapted to catch, grasp and tension a weft yarn inserted through the weaving shed, characterized in that the means for catching, grasping and tensioning the weft comprises an air injector, the suction opening of which is located at the end of the weft inserting passage way and the outlet of which is bent toward the beating up line in the cloth, a slit in the side wall of said air injector extending from the suction opening along a portion of the length of the injector in the beating up direction of the reed, a thread clamp mounted on the machine in a fixed position, between the lateral edge of the cloth and the path of reciprocation of the air injector, such that with the reed in the beating up position the thread clamp is positioned in the path of the end portion of the inserted weft extending from the lateral edge of the cloth toward the air injector.
Claim 3
Dependent Claim
100 words
A weaving machine according to claim 1, characterized in that a guide piece mounted on the reed is slidably adjustable in the weft inserting direction and has a catching channel in alignment with the weft inserting path, said catching channel at the end remote from the weft inserting device being bent in the beating up direction, and being laterally open along its entire length in the beating up direction, the air injector being transversely connected to the catching channel of the guide piece, and the slit of said injector forming an extension of the open side of the catching channel.
Claim 4
Dependent Claim
94 words
A weaving machine according to claim 1 in which a cutting device, a thread clamp and a device for sucking off the cut thread ends are mounted on the side of the machine remote from the weft inserting device, characterized in that the operative parts of the cutting device, the thread clamp and the sucking off device are positioned between the lateral edge of the cloth and the path of reciprocation of the tensioning injector, in the path of the weft thread portion extending from the edge of the cloth toward the tensioning injector.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |