Patent US3685267A successfully refreshed from Google Patents.
US3685267A
Expired / Lapsed
US
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Thread clamping,releasing,and feeding mechanism for spinning apparatus
Assignee: Rieter Ingolstadt GmbH
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Filing: 1968-04-03
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Granted: 1972-08-22
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Expires: 1988-04-03
Abstract
Abstract Rollers for drawing spun thread from spinning apparatus are located closely adjacent to the apparatus outlet. The mouth of an outlet tube may be shaped to terminate close to the nip of the withdrawing rollers and may be flared longitudinally of the roller axes. The withdrawing rollers are normally biased together and are movable out of engagement by a solenoid plunger reciprocated in response to a thread-sensing device to release the thread and provide access to the spinning apparatus outlet. A drive roller, which may be one of the withdrawing rollers, may simultaneously serve several spinning outlets. Individually operable sensors and plungers may disengage from the drive roller individual, drive-roller-engaging withdrawing rollers. One of the withdrawing rollers may be cantilever mounted and its free end beveled to feed automatically thread dropped into the slot formed by the bevel to a position between the pair of withdrawing rollers forming a straight thread stretch between the outlet and thread winding rollers.
Inventors
- 👤 Hans Landwehrkamp
- 👤 Franz Schreyer
- 👤 Karl Handschuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:03
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/48; D01H4/50
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
Thread-control mechanism for spinning machines including a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism and a pair of withdrawing rollers contacting along a line for withdrawing thread through such thread-withdrawal passage, wherein the improvement comprises means mounting at least one of the withdrawing rollers in cantilever fashion by one axial end to leave the opposite axial end of such roller free, and the rollers being disposed so that the thread-withdrawal passage axis intersects the contact line of the withdrawing rollers for movement of a stretch of thread, extending from the thread-withdrawal passage, in a direction transversely of its length past said free axial end of said cantilever-mounted roller into position between the withdrawing rollers.
Claim 2
Dependent Claim
119 words
Thread-control mechanism for spinning machines including a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism and a pair of withdrawing rollers contacting along a line for withdrawing thread through such thread-withdrawal passage, wherein the improvement comprises means mounting at least one of the withdrawing rollers in cantilever fashion by one axial end to leave the opposite axial end of such roller free, and the rollers being disposed so that the thread-withdrawal passage axis intersects the contact line of the withdrawing rollers for movement of a stretch of thread, extending from the thread-withdrawal passage, in a direction transversely of its length past said free axial end of said cantilever-mounted roller into position between the withdrawing rollers.
Claim 3
Dependent Claim
59 words
The thread-control mechanism defined in claim 1, in which the mounting means mounts a cantilever-moUnted roller with its axis inclined at an acute angle to the axis of the thread-withdrawal passage and the axis of the thread-withdrawal passage intersects the contact lines of the withdrawing rollers at a location adjacent to the free axial end of such cantilever-mounted roller.
Claim 4
Dependent Claim
145 words
Thread-control mechanism for spinning machines having a plurality of spinning stations, each station including a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism and a pair of withdrawing rollers located closely adjacent to such thread-withdrawal passage for withdrawing thread therethrough, a drive shaft common to said plurality of spinning stations and driving one withdrawing roller of each pair, the other withdrawing roller of each pair being a pressure roller engageable with the withdrawing roller driven by said drive shaft, thread-withdrawal disengaging means for each station operable individually initially to withdraw conjointly both of said withdrawing rollers of the pair of withdrawing rollers at a selected spinning station from said drive shaft independently of the withdrawing rollers at the other spinning stations and thereafter to disengage from each other said withdrawing rollers of the withdrawing roller pair at such selected spinning station.
Claim 5
Dependent Claim
145 words
Thread-control mechanism for spinning machines having a plurality of spinning stations, each station including a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism and a pair of withdrawing rollers located closely adjacent to such thread-withdrawal passage for withdrawing thread therethrough, a drive shaft common to said plurality of spinning stations and driving one withdrawing roller of each pair, the other withdrawing roller of each pair being a pressure roller engageable with the withdrawing roller driven by said drive shaft, thread-withdrawal disengaging means for each station operable individually initially to withdraw conjointly both of said withdrawing rollers of the pair of withdrawing rollers at a selected spinning station from said drive shaft independently of the withdrawing rollers at the other spinning stations and thereafter to disengage from each other said withdrawing rollers of the withdrawing roller pair at such selected spinning station.
Claim 6
Dependent Claim
186 words
Thread-control mechanism for spinning machines comprising a plurality of spinning stations, each station including a thread-winding means having a thread spool and a winding roller engageable with such spool, a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism, a pair of withdrawing rollers contacting along a line and located closely adjacent to said thread-withdrawal passage for withdrawing thread therethrough, a thread-guide element located between said withdrawing rollers and said thread-winding means so that a line connecting said thread-withdrawal passage and said thread-guide element intersects the roll-contacting line, one of said withdrawing rollers of each pair being a pressure roller, and means mounting said pressure roller in cantilever fashion by one axial end to leave the opposite axial end thereof free for movement of a stretch of thread in a direction transversely of its length past said free axial end of said cantilever-mounted roller into position between said withdrawing rollers, and a drive shaft common to said pairs of withdrawing rollers of said plurality of spinning stations, the axes of said withdrawing rollers being perpendicular to the axis of said common drive shaft.
Claim 7
Dependent Claim
186 words
Thread-control mechanism for spinning machines comprising a plurality of spinning stations, each station including a thread-winding means having a thread spool and a winding roller engageable with such spool, a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism, a pair of withdrawing rollers contacting along a line and located closely adjacent to said thread-withdrawal passage for withdrawing thread therethrough, a thread-guide element located between said withdrawing rollers and said thread-winding means so that a line connecting said thread-withdrawal passage and said thread-guide element intersects the roll-contacting line, one of said withdrawing rollers of each pair being a pressure roller, and means mounting said pressure roller in cantilever fashion by one axial end to leave the opposite axial end thereof free for movement of a stretch of thread in a direction transversely of its length past said free axial end of said cantilever-mounted roller into position between said withdrawing rollers, and a drive shaft common to said pairs of withdrawing rollers of said plurality of spinning stations, the axes of said withdrawing rollers being perpendicular to the axis of said common drive shaft.
Claim 8
Dependent Claim
43 words
The thread-control mechanism defined in claim 4, in which the free axial end of each cantilever-mounted pressure roller has a beveled circumference to facilitate entrance of a thread between such cantilever-mounted pressure roller and the other roller of the pair of withdrawing rollers.
Claim 9
Dependent Claim
90 words
Thread-control mechanism for spinning machines comprising a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism, and a pair of withdrawing rollers located closely adjacent to the thread-withdrawal passage mouth, the mouth of said thread-withdrawal passage adjacent to said withdrawing rollers being flared outwardly only in that axial plane of said thread-withdrawal passage which is parallel to the axes of said withdrawing rollers and said thread-withdrawal passage mouth is not flared in the axial plane of said thread-withdrawal passage perpendicular to the axes of said withdrawing rollers.
Claim 10
Dependent Claim
90 words
Thread-control mechanism for spinning machines comprising a thread-withdrawal passage for withdrawing thread out of a continuous ringless spinning mechanism, and a pair of withdrawing rollers located closely adjacent to the thread-withdrawal passage mouth, the mouth of said thread-withdrawal passage adjacent to said withdrawing rollers being flared outwardly only in that axial plane of said thread-withdrawal passage which is parallel to the axes of said withdrawing rollers and said thread-withdrawal passage mouth is not flared in the axial plane of said thread-withdrawal passage perpendicular to the axes of said withdrawing rollers.
Claim 11
Dependent Claim
102 words
Thread-control mechanism for spinning machines comprising a thread-withdrawal tube having a passage for withdrawing thread out of a continuous ringless spinning mechanism, and a pair of withdrawing rollers located closely adjacent to said thread-withdrawal passage, said thread-withdrawal tube having an end adjacent to said withdrawing rollers located between and conforming to the rounding of the rollers of said pair of withdrawing rollers, said passage being of substantially uniform width throughout its entire length in the axial plane of said tube perpendicular to the axes of said withdrawing rollers to locate the end of said passage close to the nip of said rollers.
Claim 12
Dependent Claim
102 words
Thread-control mechanism for spinning machines comprising a thread-withdrawal tube having a passage for withdrawing thread out of a continuous ringless spinning mechanism, and a pair of withdrawing rollers located closely adjacent to said thread-withdrawal passage, said thread-withdrawal tube having an end adjacent to said withdrawing rollers located between and conforming to the rounding of the rollers of said pair of withdrawing rollers, said passage being of substantially uniform width throughout its entire length in the axial plane of said tube perpendicular to the axes of said withdrawing rollers to locate the end of said passage close to the nip of said rollers.
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) | 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 |