US4078586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing a selvage
Assignee: Gebr SULZER AG (SULZER BROTHERS LTD) CH-8401 WINTERTHUR / SWITZERLAND
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Filing: 1976-08-26
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Granted: 1978-03-14
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Expires: 1996-08-26
Abstract
Abstract A method and apparatus for producing a selvage on a fabric woven on a loom in which filling threads are drawn from a stationary supply outside the shed formed by the warp yarns. The method and apparatus includes inserting a first filling through the shed. The ends of the first filling are clamped by a first pair of clamps positioned on opposite sides of the shed which hold the filling in an extended position. The filling thread is beat-up into the fell of the fabric and simultaneously the ends thereof are displaced behind the fell of the fabric for engagement by a second pair of clamps. The filling is then severed outside of the second pair of clamps so that the second pair of clamps continues to hold the ends of the filling in an extended position behind the fell of the fabric. The shed is then changed and the above steps are repeated until a predetermined number of fillings are held by the second pair of clamps. A selvage insertion needle which has a hook on the end thereof simultaneously engages the ends of the fillings held by the second pair of clamps and inserts the ends of the fillings into the shed. The plurality of fillings are beat-up simultaneously during the beat-up operation of the next inserted filling.
Inventors
- 👤 Allan William Henry Porter
- 👤 Rudolph Zviener
- 👤 Josef Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:12
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/40; D03D47/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
223 words
The method of producing a selvage on a fabric woven on a loom in which filling threads are drawn from a stationary supply outside the shed formed by warp yarns, said method comprising: (a) inserting a first filling through said shed, (b) clamping the ends of said first filling with a first pair of clamps on opposite sides of said shed holding said filling in an extended position, (c) beating up of said filling into the fell of said fabric and simultaneously displacing the filling ends behind the fell of said fabric for engagement by a second pair of clamps, (d) severing said filling outside of said second pair of clamps so that said second pair of clamps continues to hold the ends of said filling in an extended position behind the fell of said fabric, (e) changing the shed and repeating the steps set forth above so that said second pair of clamps holds the ends of a predetermined number of fillings, and (f) using a selvage insertion needle for simultaneously engaging said ends of said fillings held by one of said clamps of said second pair of clamps and inserting said ends of said fillings into said shed, and (g) beating up said inserted ends into the fell of said fabric simultaneously with the beating up of the next inserted filling.
Claim 2
Independent Claim
223 words
The method of producing a selvage on a fabric woven on a loom in which filling threads are drawn from a stationary supply outside the shed formed by warp yarns, said method comprising: (a) inserting a first filling through said shed, (b) clamping the ends of said first filling with a first pair of clamps on opposite sides of said shed holding said filling in an extended position, (c) beating up of said filling into the fell of said fabric and simultaneously displacing the filling ends behind the fell of said fabric for engagement by a second pair of clamps, (d) severing said filling outside of said second pair of clamps so that said second pair of clamps continues to hold the ends of said filling in an extended position behind the fell of said fabric, (e) changing the shed and repeating the steps set forth above so that said second pair of clamps holds the ends of a predetermined number of fillings, and (f) using a selvage insertion needle for simultaneously engaging said ends of said fillings held by one of said clamps of said second pair of clamps and inserting said ends of said fillings into said shed, and (g) beating up said inserted ends into the fell of said fabric simultaneously with the beating up of the next inserted filling.
Claim 3
Independent Claim
197 words
An apparatus for producing a selvage on a fabric woven on a loom on which filling threads are drawn from a stationary supply outside the shed formed by warp yarns and fed through the shed by a filling inserting member, said loom having movable reed provided thereon, said apparatus comprising: (a) a first pair of filling clamping means carried for movement with said reed on opposite sides of said shed in the path normally traveled by said filling inserting member for holding a filling thread in an extended position, (b) a second pair of clamping means normally carried behind the fell of said fabric out of the normal path of travel of said filling inserting member, (c) means carried with said reed for engaging said extended filling between said warp yarns and said first pair of clamping means and displacing said engaged portions behind the fell of said fabric and transferring the ends of said filling to said second pair of clamping means, and (d) means for simultaneously engaging a plurality of ends of filling threads held by each of said second pair of clamping means and inserting said ends into said shed for producing a selvage.
Claim 4
Independent Claim
197 words
An apparatus for producing a selvage on a fabric woven on a loom on which filling threads are drawn from a stationary supply outside the shed formed by warp yarns and fed through the shed by a filling inserting member, said loom having movable reed provided thereon, said apparatus comprising: (a) a first pair of filling clamping means carried for movement with said reed on opposite sides of said shed in the path normally traveled by said filling inserting member for holding a filling thread in an extended position, (b) a second pair of clamping means normally carried behind the fell of said fabric out of the normal path of travel of said filling inserting member, (c) means carried with said reed for engaging said extended filling between said warp yarns and said first pair of clamping means and displacing said engaged portions behind the fell of said fabric and transferring the ends of said filling to said second pair of clamping means, and (d) means for simultaneously engaging a plurality of ends of filling threads held by each of said second pair of clamping means and inserting said ends into said shed for producing a selvage.
Claim 5
Dependent Claim
91 words
An apparatus as set forth in claim 2 for producing a selvage on a fabric woven on a loom wherein said means for displacing said engaged portions of said filling thread ends includes: (a) a pair of projections carried on each end of the reed outside of said shed, (b) said projections of each pair of projections being spaced apart sufficiently for the entry of one of said second pair of clamping means for enabling an end of said filling to be transferred to said one of said second clamping means.
Claim 6
Dependent Claim
84 words
The apparatus as set forth in claim 3 wherein said projections extend from adjacent the top of the reed to adjacent the bottom of the reed with a central portion converging inwardly towards the reed terminating in an apex carried at approximately the same height as the fell of the cloth, so that as the reed is moved forward during the beat-up motion, the ends of the filling are engaged by the apex of said projections to be transferred to said second clamping means.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |