Patent US3851679A successfully refreshed from Google Patents.
US3851679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for retaining the end of a weft thread in looms
Assignee: Individual
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Filing: 1973-02-28
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Granted: 1974-12-03
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Expires: 1993-02-28
Abstract
Abstract A device for gripping and retaining the end of a weft thread in shuttleless looms in which the weft thread is inlaid from fixed spools (looms with flexible needles and gripper or microshuttles) and multiple shed or wave weaving looms in which the weft thread is inlaid by several shuttles at a time in a selvage forming operation provided with contoured plates having elongated portions, cutouts and lugs, the plates being pivotally mounted and spaced apart with their recesses defining a channel for the passage of the weft thread carrier while the lugs overlap whereby the thread is bent therebetween in the fashion it is bent between the warp threads and is retained in this position by friction.
Inventors
- 👤 D Titov
- 👤 A Rotenburg
- 👤 L Pevzner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/12; D03D47/26
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
170 words
A device for retaining the end of a weft thread in shuttleless looms including a reed with teeth for beating up the weft thread to the fell of the cloth being woven and a weft thread carrier, said device comprising: means for retaining the ends of the weft thread, said retaining means including two groups of contoured plates arranged at both sides of said reed; said plates having elongated portions received intermediate of said teeth of said reed, said plates further having cutouts and lugs; axes suPporting said contoured plates in a spaced relationship; said two groups of said contoured plates being arranged so that said cutouts thereof define a channel for the passage of said weft thread carrier and said lugs of said said plates of one of said two groups being received intermediate of said lugs of said plates of the other of said two groups to partly overlap one another so that the respective ends of said weft thread will be bent in succession about said lugs.
Claim 2
Independent Claim
170 words
A device for retaining the end of a weft thread in shuttleless looms including a reed with teeth for beating up the weft thread to the fell of the cloth being woven and a weft thread carrier, said device comprising: means for retaining the ends of the weft thread, said retaining means including two groups of contoured plates arranged at both sides of said reed; said plates having elongated portions received intermediate of said teeth of said reed, said plates further having cutouts and lugs; axes suPporting said contoured plates in a spaced relationship; said two groups of said contoured plates being arranged so that said cutouts thereof define a channel for the passage of said weft thread carrier and said lugs of said said plates of one of said two groups being received intermediate of said lugs of said plates of the other of said two groups to partly overlap one another so that the respective ends of said weft thread will be bent in succession about said lugs.
Claim 3
Dependent Claim
25 words
A device as claimed in claim 1, wherein washer means are interposed between said plates so as to provide for adjustable spacing of said plates.
Claim 4
Dependent Claim
105 words
A device as claimed in claim 1, wherein each of said two groups of said plates is a series of said plates, said two series being mounted one above the other and relatively displaced, whereby said lugs of said plates of one of said series are received intermediate of said lugs of said plates the other of said series, defining therebetween a gap adapted to accomodate the end of said weft thread, said lugs of said plates having a length equal to the distance from said channel for the passage of said weft thread carrier to the area where temples are mounted in said loom.
Claim 5
Dependent Claim
34 words
A device as claimed in claim 3, wherein one of said axes supporting said plates is an eccentric one so as to provide for adjustment of the degree of the overlapping of said lugs.
Claim 6
Independent Claim
288 words
A device for retaining the end of a weft thread in looms in which the weft thread is inserted as a cut length and including a weft thread carrier and a reed in the form of a rotary shaft with discs having beat-up teeth for beating up the weft thread to the fell of the cloth, comprising means for retaining the end of the weft thread, each of said means including two groups of contoured plates arranged at both sides of the reed, said plates having elongated portions located between the teeth of the reed, the plates further having cutouts and lugs, axes supporting the contoured plates in spaced relationship, the groups of contoured plates being arranged so that the cutouts thereof define a channel for the passage of the weft thread carrier and the lugs of the plates of one group being located between the lugs of the plates of the other group, partly overlapping one another, so that the ends of the weft threads will be bent in succession by the lugs, the plates of one of said groups having a larger size than the plates of the other of said groups and being located between the plates of the other said group to form one series, the plates of larger size being provided with a slit which is overlapped by the lugs of the smaller plates and communicates at one end with the cutout of said plate and is lifted at the other end above the lugs of the smaller plates to form a through channel extending through the entire series of plates with the exit of the end of the weft thread after it has been beaten up to the fell of the cloth.
Claim 7
Independent Claim
288 words
A device for retaining the end of a weft thread in looms in which the weft thread is inserted as a cut length and including a weft thread carrier and a reed in the form of a rotary shaft with discs having beat-up teeth for beating up the weft thread to the fell of the cloth, comprising means for retaining the end of the weft thread, each of said means including two groups of contoured plates arranged at both sides of the reed, said plates having elongated portions located between the teeth of the reed, the plates further having cutouts and lugs, axes supporting the contoured plates in spaced relationship, the groups of contoured plates being arranged so that the cutouts thereof define a channel for the passage of the weft thread carrier and the lugs of the plates of one group being located between the lugs of the plates of the other group, partly overlapping one another, so that the ends of the weft threads will be bent in succession by the lugs, the plates of one of said groups having a larger size than the plates of the other of said groups and being located between the plates of the other said group to form one series, the plates of larger size being provided with a slit which is overlapped by the lugs of the smaller plates and communicates at one end with the cutout of said plate and is lifted at the other end above the lugs of the smaller plates to form a through channel extending through the entire series of plates with the exit of the end of the weft thread after it has been beaten up to the fell of the cloth.
Claim 8
Dependent Claim
39 words
The device as claimed in claim 5, wherein said passage for the exit of said end of said weft thread is located in the area where said cloth is engaged by the needles of the temples of said loom.
Claim 9
Dependent Claim
80 words
The device as claimed in claim 5, wherein an arm resiliently biased toward the beat-up tooth of said disc of said shaft is mounted in front of the series of plates in the direction of the movement of said weft carrier, said arm being adapted to press the end of the weft thread against said tooth and to be raised to allow the cam means mounted on said shaft and said weft thread carrier to pass the weft thread carrier.
Claim 10
Dependent Claim
33 words
A device as claimed in claim 1, wherein said device is mounted in said loom with the help of means for providing for adjustment of the position of said device along said 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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |