Patent US3792723A successfully refreshed from Google Patents.
US3792723A
Expired / Lapsed
US
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Weft thread end catching and holding mechanism
Assignee: Individual
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Filing: 1972-02-08
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Granted: 1974-02-19
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Expires: 1992-02-08
Abstract
Abstract A weft thread end catching and holding mechanism which includes a stationary plate with an elongated slot therein for the passage of the carrier of the weft thread and a rotary plate in the form of a ring with a projecting tooth mounted on a drive shaft. The tooth is adapted to catch the end of the weft thread emerging from the carrier and is biased into engagement with the stationary plate, for holding the weft thread end caught thereby and for forwarding the same toward the fell of the cloth. The mechanism includes a second stationary plate adjacent the first plate for biasing the tooth into engagement with the first stationary plate.
Inventors
- 👤 D Titov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:41
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/12; D03D47/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
A mechanism for catching and holding the end of a weft thread emerging from a carrier of said thread, in the process of forming a cloth, said mechanism comprising: a stationary plate mounted at each side of said cloth, said plate having an elongated slot therein for the passage of said carrier of said weft thread; a driving shaft; a plate mounted on said shaft for rotation therewith, said plate being in the form of a ring with a projecting tooth; said tooth being positioned on said plate to pass the slot to catch the end of said weft thread, said tooth being biased into engagement with said stationary plate to hold said end and to advance the same toward the fell of said cloth, as said ring is rotating; and means for biasing said tooth toward said stationary plate.
Claim 2
Dependent Claim
140 words
A mechanism for catching and holding the end of a weft thread emerging from a carrier of said thread, in the process of forming a cloth, said mechanism comprising: a stationary plate mounted at each side of said cloth, said plate having an elongated slot therein for the passage of said carrier of said weft thread; a driving shaft; a plate mounted on said shaft for rotation therewith, said plate being in the form of a ring with a projecting tooth; said tooth being positioned on said plate to pass the slot to catch the end of said weft thread, said tooth being biased into engagement with said stationary plate to hold said end and to advance the same toward the fell of said cloth, as said ring is rotating; and means for biasing said tooth toward said stationary plate.
Claim 3
Dependent Claim
66 words
A mechanism as set forth in claim 1, wherein said means for biasing said tooth into engagement with said stationary plate includes a second stationary plate spaced by an adjustable gap from said first-mentioned plate; said second plate having an elongated slot therein for the passage of said carrier of said weft thread and for free travel of said thread toward said fell of said cloth.
Claim 4
Dependent Claim
60 words
A mechanism as set forth in claim 2, wherein the front edges, of said elongated slot of said second stationary plate and of said tooth of said ring in the direction of the rotation thereof are sharply pointed, whereby, as said tooth approaches said slot, said edges thereof act as shears to cut off said end of said weft thread.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |