US4091604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the driving of yarn-takeup packages, especially for double twisting machines
Assignee: Hamel GmbH
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Filing: 1977-03-31
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Granted: 1978-05-30
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Expires: 1997-03-31
Abstract
No abstract record available.
Inventors
- 👤 Aloys Greive
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:33
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/40; B65H54/42; B65H63/00; B65H63/02; B65H63/024; B65H63/036; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
212 words
A device on a twisting machine, especially a double twister, for peripherally driving a yarn package to take up a twisted yarn, said device comprising: a drive shaft; a coiling cylinder for each twisting station of the machine coaxial with said drive shaft and freely rotatable thereon, a respective yarn package resting upon said coiling cylinder and being peripherally rotated thereby, said coiling cylinder being axially fixed relative to said shaft; a coupling sleeve angularly engaged by said coiling cylinder and freely rotatable on said shaft; a hub axially fixed on said shaft and rotatably entrained therewith, said sleeve being axially shiftable relative to said coiling cylinder and said shaft toward and away from said hub, said hub and said sleeve being provided with mutually engageable formations to angularly couple said sleeve with said hub in an operative axial position of said sleeve whereby said coiling cylinder is entrained by said shaft and being disengaged in another position of said sleeve whereby said coiling cylinder can come to standstill and halt rotation of the yarn package resting thereagainst; thread-sensing means monitoring the tension of a yarn coiled on said yarn package; and actuating means between said yarn-sensing means and said sleeve for shifting same from said operative position into said other position.
Claim 2
Independent Claim
212 words
A device on a twisting machine, especially a double twister, for peripherally driving a yarn package to take up a twisted yarn, said device comprising: a drive shaft; a coiling cylinder for each twisting station of the machine coaxial with said drive shaft and freely rotatable thereon, a respective yarn package resting upon said coiling cylinder and being peripherally rotated thereby, said coiling cylinder being axially fixed relative to said shaft; a coupling sleeve angularly engaged by said coiling cylinder and freely rotatable on said shaft; a hub axially fixed on said shaft and rotatably entrained therewith, said sleeve being axially shiftable relative to said coiling cylinder and said shaft toward and away from said hub, said hub and said sleeve being provided with mutually engageable formations to angularly couple said sleeve with said hub in an operative axial position of said sleeve whereby said coiling cylinder is entrained by said shaft and being disengaged in another position of said sleeve whereby said coiling cylinder can come to standstill and halt rotation of the yarn package resting thereagainst; thread-sensing means monitoring the tension of a yarn coiled on said yarn package; and actuating means between said yarn-sensing means and said sleeve for shifting same from said operative position into said other position.
Claim 3
Dependent Claim
75 words
The device defined in claim 1 wherein said coiling cylinder is formed at one axial end with an axially open recess, said sleeve being at least partly received in said recess, said coiling cylinder having a radially inwardly projecting member and said sleeve having a radially outwardly projecting member engaging the inwardly projecting member of said cylinder within said recess whereby said sleeve is rotatably coupled with said cylinder but is axially displaceable relative thereto.
Claim 4
Dependent Claim
42 words
The device defined in claim 2 wherein said sleeve has an extremity turned away from said coiling cylinder and formed with an axially open recess receiving said hub at least in said operative position, said formations being disposed in the latter recess.
Claim 5
Dependent Claim
34 words
The device defined in claim 3 wherein said formations include a pin carried by said sleeve and extending parallel to said shaft, and a rib formed on said hub and engageable with said pin.
Claim 6
Dependent Claim
43 words
The device defined in claim 3, further comprising a compression spring coaxially surrounding said shaft and seated at one end against said coiling cylinder while bearing at its other end against said sleeve thereby urging same axially in the direction of said hub.
Claim 7
Dependent Claim
45 words
The device defined in claim 5 wherein said extremity is formed with an external screw thread, said actuating means including a pawl engageable in said thread and operated by said thread-sensing means for axially displacing said sleeve from said operative position to said other position.
Claim 8
Dependent Claim
22 words
The device defined in claim 6 wherein said extremity projects outwardly from the axially open recess in said end of said cylinder.
Claim 9
Dependent Claim
83 words
The device defined in claim 6 wherein said pawl is formed as a bellcrank lever having a first arm provided with a right-angle finger forming a guide cam engageable in said screw thread, and a second arm swingable in a direction tending to introduce said cam into said screw thread, said thread-sensing means including a lever formed with a bent member engageable with said second arm and preventing the swinging movement thereof while tension is maintained in the yarn fed to said package.
Claim 10
Dependent Claim
31 words
The device defined in claim 8 wherein said second arm is swingable to shift said cam into said screw thread by gravitational force and is held thereby against said bent member.
References Cited (Backward Citations)
US2944382A
Cited
US3615060A
Cited
US3825195A
Cited
US3833179A
Cited
US3917182A
Cited
US3864901A
Cited
US3945579A
Cited
US3977615A
Cited
US4043517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |