US3685272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile spinning machines
Assignee: Hollingsworth UK Ltd
•
Filing: 1970-07-08
•
Granted: 1972-08-22
•
Expires: 1990-07-08
Abstract
Abstract An open-end textile spinning machine comprising a spinning rotor formed with an interior fiber collecting surface to which discrete textile fibers are fed by a fiber feed means. The fibers in the fiber collecting surface are twisted into an end of a yarn which is withdrawn and taken up on a wind-up device. The forwardly facing open-end of the rotor is closed by a closure member which cooperates with a fiber inlet duct for feeding discrete fibers from the fiber feed means to the fiber collecting surface. The fiber feed means includes an opening roller which is mounted at the side of the rotor for opening fibers taken from a supply and feeding them to the fiber inlet duct which forms part of a straight passage connected between the periphery of the opening roller and the vicinity of the fiber collecting surface, the length of the passage lying in a plane which intersects the axis of the opening roller at right angles.
Inventors
- 👤 Robert Greenwood
- 👤 John Michael Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/04; D01H4/08
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
182 words
An open-end textile spinning machine comprising a spinning rotor arranged for rotation, an interior fiber collecting surface formed within the rotor, fiber feed means for taking fibers from the supply and delivering them as discrete fibers to the interior fiber collecting surface, a wind-up device for withdrawing and taking up an end of yarn twisted from the fibers in the fiber collecting surface, a closure member for closing the forwardly facing open-end of the rotor, a fiber inlet duct feeding discrete fibers from said fiber feed means to said fiber collecting surface of the rotor through said closure member, an opening roller forming part of the fiber feed means and mounted at the side of the said roller for opening fibers taken from the supply and feeding them as discrete fibers to said fiber inlet duct, and a straight passage including said fiber inlet duct and connected between the periphery of the opening roller and the vicinity of the fiber collecting surface, the length of the passage lying in a plane which intersects the axis of the opening roller at right angles.
Claim 2
Dependent Claim
182 words
An open-end textile spinning machine comprising a spinning rotor arranged for rotation, an interior fiber collecting surface formed within the rotor, fiber feed means for taking fibers from the supply and delivering them as discrete fibers to the interior fiber collecting surface, a wind-up device for withdrawing and taking up an end of yarn twisted from the fibers in the fiber collecting surface, a closure member for closing the forwardly facing open-end of the rotor, a fiber inlet duct feeding discrete fibers from said fiber feed means to said fiber collecting surface of the rotor through said closure member, an opening roller forming part of the fiber feed means and mounted at the side of the said roller for opening fibers taken from the supply and feeding them as discrete fibers to said fiber inlet duct, and a straight passage including said fiber inlet duct and connected between the periphery of the opening roller and the vicinity of the fiber collecting surface, the length of the passage lying in a plane which intersects the axis of the opening roller at right angles.
Claim 3
Dependent Claim
32 words
A machine according to claim 1, wherein said passage has an angle of inclination not greater than 30* to a plane at right angles to the rotary axis of the spinning rotor.
Claim 4
Dependent Claim
30 words
A machine according to claim 1, wherein the rotary axis of the rotor is parallel to the plane containing the fiber transporting periphery of the opening roller and said passage.
Claim 5
Dependent Claim
24 words
A machine according to claim 1, wherein the passage extends from the periphery of the opening roller at a forwardly region of the periphery.
Claim 6
Dependent Claim
25 words
A machine according to claim 1, wherein the axis of the opening roller is at right angles to the rotary axis of the spinning rotor.
Claim 7
Dependent Claim
31 words
A machine according to claim 1, wherein said passage has an angle of inclination less than 20* to a plane at right angles to the rotary axis of the spinning rotor.
Claim 8
Dependent Claim
35 words
A machine according to claim 1, wherein the rotary axis of the rotor lies in a plane at right angles to the plane containing the fiber transporting periphery of the opening roller and said passage.
Claim 9
Dependent Claim
32 words
A machine according to claim 1, wherein said passage has an angle of inclination of 25* or substantially 25*to a plane at right angles to the rotary axis of the spinning rotor.
Claim 10
Dependent Claim
57 words
A machine according to 1 wherein said rotor is contained in a rotor housing having an open front end, wherein the closure member takes the form of a cover plate adapted to fit over the open front end of the rotor housing, and wherein said fiber inlet duct is formed in an extension of the cover plate.
Claim 11
Dependent Claim
57 words
A machine according to 1 wherein said rotor is contained in a rotor housing having an open front end, wherein the closure member takes the form of a cover plate adapted to fit over the open front end of the rotor housing, and wherein said fiber inlet duct is formed in an extension of the cover plate.
Claim 12
Dependent Claim
32 words
A machine according to claim 9, wherein said passaGe includes a fiber delivery duct which is formed in a housing containing said opening roller and which registers with said fiber inlet duct.
Claim 13
Dependent Claim
55 words
A machine according to claim 1, wherein the opening roller is arranged to be fed with fibers by a feed roller cooperating therewith and wherein the arrangement is such that the fiber transporting periphery of the feed roller lies in the said plane containing the fiber transporting periphery of the opening roller and said passage.
Claim 14
Dependent Claim
29 words
A machine according to claim 11, wherein said feed roller is provided with teeth or spikes to pick fibers from a sliver fed thereto through a sliver feed duct.
References Cited (Backward Citations)
US3210923A
Cited
US3324642A
Cited
US3370413A
Cited
US3335558A
Cited
US3355869A
Cited
US3381463A
Cited
CH448826A
Cited
US3455097A
Cited
US3511044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |