Patent US3698174A successfully refreshed from Google Patents.
US3698174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning machine and method of operating the same
Assignee: Vyzkumny Ustav Bavlnarsky AS
•
Filing: 1971-01-06
•
Granted: 1972-10-17
•
Expires: 1991-01-06
Abstract
Abstract A spinning machine and a method of operating it. The spinning machine has one or more rotary spinning chambers each of which receives fibrous sliver from a rotary carding and feed roller, spins it into a yarn and has the yarn withdrawn by a withdrawing device. To stop the operation of the machine, the drive of the feed and carding roller is first terminated and simultaneously positive braking action is applied to the roller. Thereupon the withdrawing device has its drive terminated and only then is the rotary spinning chamber disconnected from its own drive.
Inventors
- 👤 Miroslav Boucek
- 👤 Miroslav Jiskra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:48
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/42
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
A method of stopping a spinning machine having at least one spinning chamber, at least one rotatable carding roller having a periphery adapted to receive fibers and to feed them to said spinning chamber for conversion into a yarn, fiber supply means for supplying fibers onto said periphery of said carding roller, withdrawing means for withdrawing yarn from said spinning chamber, roller and withdrawing means, comprising the steps of disengaging said carding roller from its associated drive; concomitantly effecting positive braking of the rotation of said carding roller so as to prevent the transference of fibers still on its periphery into said spinning chamber; disengaging said withdrawing means from the associated drive; and finally disengaging said spinning chamber from its drive.
Claim 2
Independent Claim
121 words
A method of stopping a spinning machine having at least one spinning chamber, at least one rotatable carding roller having a periphery adapted to receive fibers and to feed them to said spinning chamber for conversion into a yarn, fiber supply means for supplying fibers onto said periphery of said carding roller, withdrawing means for withdrawing yarn from said spinning chamber, roller and withdrawing means, comprising the steps of disengaging said carding roller from its associated drive; concomitantly effecting positive braking of the rotation of said carding roller so as to prevent the transference of fibers still on its periphery into said spinning chamber; disengaging said withdrawing means from the associated drive; and finally disengaging said spinning chamber from its drive.
Claim 3
Dependent Claim
25 words
A method as defined in claim 1, wherein the step of disengaging said withdrawing means is initiated subsequent to the step of braking said roller.
Claim 4
Dependent Claim
29 words
A method as defined in claim 2, wherein the step of braking said roller is at least substantially completed before initiation of said step of disengaging said withdrawing means.
Claim 5
Dependent Claim
128 words
In a spinning machine, in combination, at least one rotary spinning chamber; at least one rotatable carding roller having a periphery adapted to receive fibers and to transfer them to said spinning chamber for conversion into a yarn; fiber supply means for supplying fibers onto said periphery of said carding roller; withdrawing means for withdrawing yarn from said spinning chamber; separate drive means for said chamber, said roller and said withdrawing means respectively operatively associated with the same; and terminating means for terminating driving of said chamber, roller and withdrawing means by the respective drive means, said terminating means including a disengageable clutch connecting said carding roller with said drive means therefor, and brake means for positively stopping rotation of said carding roller upon disengaging of said clutch.
Claim 6
Dependent Claim
128 words
In a spinning machine, in combination, at least one rotary spinning chamber; at least one rotatable carding roller having a periphery adapted to receive fibers and to transfer them to said spinning chamber for conversion into a yarn; fiber supply means for supplying fibers onto said periphery of said carding roller; withdrawing means for withdrawing yarn from said spinning chamber; separate drive means for said chamber, said roller and said withdrawing means respectively operatively associated with the same; and terminating means for terminating driving of said chamber, roller and withdrawing means by the respective drive means, said terminating means including a disengageable clutch connecting said carding roller with said drive means therefor, and brake means for positively stopping rotation of said carding roller upon disengaging of said clutch.
Claim 7
Dependent Claim
26 words
In a spinning machine as defined in claim 4; further comprising control means for effecting disengagement of said clutch with concomitant operation of said brake means.
Claim 8
Dependent Claim
44 words
In a spinning machine as defined in claim 4; further comprising control means for effecting disengagement of said clutch with concomitant operation of said brake means and subsequent sequential disengagement of said withdrawing means and said spinning chamber from the respectively associated drive 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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |