Patent US3780540A successfully refreshed from Google Patents.
US3780540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patterning devices for knitting machines
Assignee: Akzo Nobel UK PLC
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Filing: 1971-07-07
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Granted: 1973-12-25
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Expires: 1991-07-07
Abstract
Abstract A patterning device for a circular knitting machine, comprising a rotatable support carrying selector members which co-operate with butts of knitting elements to select needles for knitting or other operations, each selector member being movable on the support between two positions providing for different modes of interaction with said butts. Prior to interaction with the butts, the selector members are positioned by selective interaction with one or more electromagnetically controlled cam surfaces which deflect the selector members from one position to the other or not, as desired.
Inventors
- 👤 J Maidens
- 👤 K Hartley
- 👤 F Carrotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:55
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66; D04B15/68; D04B15/78
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
296 words
A patterning device for a circular knitting machine, said device comprising: a frame; at least one circular support disc rotatably mounted in said frame, said disc including structure defining a plurality of channels extending radially of said disc; a selector member mounted in each of said radial channels, each selector member including a body member, a blade extending from said body member and projecting from said support disc for cooperation with butts of knitting elements of the knitting machine, and two spigots located in the plane of the blade of said selector member and extending on opposite sides of said body member, each channel-defining structure of said circular disc including apertures in which said spigots of a corresponding selector member are received for pivotally mounting said selector membEr in said channel so that said selector member blade is movable between two positions relative to the support disc whereby it can interact with the butts in different ways and control means mounted adjacent said support disc for selectively positioning said selector member blades, said control means including an electro-magnet and a resilient control member blade of magnetic material mounted for co-operation with the selector member blades as they are carried past the control member blade by rotation of the support disc, said control member blade being movable between a location in which it will not contact any selector member blade carried past it in one of the said two positions of the selector member blade on the support disc and a location in which it will contact such selector member blades and move them to the other of the two positions, said resilient blade being urged to one of its two locations by its resilience and to the other of said locations by the electro-magnet when energized.
Claim 2
Dependent Claim
296 words
A patterning device for a circular knitting machine, said device comprising: a frame; at least one circular support disc rotatably mounted in said frame, said disc including structure defining a plurality of channels extending radially of said disc; a selector member mounted in each of said radial channels, each selector member including a body member, a blade extending from said body member and projecting from said support disc for cooperation with butts of knitting elements of the knitting machine, and two spigots located in the plane of the blade of said selector member and extending on opposite sides of said body member, each channel-defining structure of said circular disc including apertures in which said spigots of a corresponding selector member are received for pivotally mounting said selector membEr in said channel so that said selector member blade is movable between two positions relative to the support disc whereby it can interact with the butts in different ways and control means mounted adjacent said support disc for selectively positioning said selector member blades, said control means including an electro-magnet and a resilient control member blade of magnetic material mounted for co-operation with the selector member blades as they are carried past the control member blade by rotation of the support disc, said control member blade being movable between a location in which it will not contact any selector member blade carried past it in one of the said two positions of the selector member blade on the support disc and a location in which it will contact such selector member blades and move them to the other of the two positions, said resilient blade being urged to one of its two locations by its resilience and to the other of said locations by the electro-magnet when energized.
Claim 3
Dependent Claim
68 words
A device according to claim 1, wherein said resilient control member blade includes a turned-over end portion having a wedge shape, said end portion serving, when the blade is in one of the said locations to contact selector member blades carried past the control member blade in the said one of their two positions and to deflect such selector member blades to the other of said two positions.
Claim 4
Dependent Claim
52 words
A device according to claim 2, including a cam located before the control member blade in respect of the direction of rotation of the support disc and arranged to deflect selector member blades carried to it in the said other of their two positions to the said one of their two positions.
Claim 5
Dependent Claim
95 words
A device according to claim 3, including a plate of annular configuration surrounding each support disc and having slots formed therein, said plate being located so that each selector member blade extends on one side of the plate when the selector member blade is in its said one position and on the other side of the plate when the selector member blade is in its said other positions, said cam and the control member blade being arranged to deflect selector member blades from one side of the plate to the other through said slots therein.
Claim 6
Dependent Claim
89 words
A device according to claim 2, including a second control member associated with the support disc for co-operation with the selector member blades, said second control member being movable between a location in which it will not contact selector member blades carried past it in the said other of the two positions and a location in which it will contact selector member blades carried past it in the said other of the two positions and will move such selector member blades to the said one of the two positions.
Claim 7
Dependent Claim
55 words
A device according to claim 5, wherein said second control member comprises a resilient blade and includes magnetic material, said device further comprising an electro-magnet, and wherein said blade is urged by its resilience to one of its two locations and is urged by said electro-magnet, when energized, to the other of its two locations.
Claim 8
Dependent Claim
69 words
A device according to claim 6, wherein said resilient blade of the second control member includes a turned-over end portion having a wedge-shape, said end portion serving, when the blade is in one of the said locations to contact selector member blades carried past the blade in the said other of their two positions and to deflect such selector member blades to the second one of their two positions.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |