US3877210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for measuring the count and twist of spun yarn in open-end spinning
Assignee: Elitex Zavody Textilniho
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Filing: 1973-09-17
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Granted: 1975-04-15
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Expires: 1993-09-17
Abstract
Abstract In an open end spinning unit having feed means for delivering a sliver of fibrous material, a rotary twisting means for spinning fibrous material into a yarn and withdrawal means for taking up the spun yarn comprising, detecting means are located at a selected pair of the feed twisting or withdrawing means for sensing the motion of the fibers, the twist means of the spun yarn respectively and for providing an output having values proportional thereto. A first counter is connected to one of the detectors for receiving the output thereof and gating means is interposed between the first counter and its associated detector. A second counter is connected to thhe other of the detectors to receive the output thereof and switch means is interposed between the second counter and the gating means. The switch means provides a signal upon the reaching in the second counter of a predetermined input value, which operates to close the gating means and stop the passage of detected value to the first counter. Means for indicating the value received by the first counter is included.
Inventors
- 👤 Pavel Seidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:06
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
201 words
A system for measuring and indicating the count and twist of spun yarn formed in an open end spinning unit having feed means for delivering a sliver of fibrous material, a rotary turbine twisting means for spinning said fibrous material into a yarn and withdrawal means for taking up the spun yarn comprising detecting means located at each one of a selected pair of said feeding means, twisting means and withdrawing means for sensing the delivery of the fibers, the twist of the spun yarn and the speed of withdrawal respectively and for providing an output having values proportional to each thereto, a first counter connected to one of said detectors for receiving the output thereof, gating means interposed between said first counter and its associated detector, a second counter connected to the other of said detectors to receive the output thereof, switch means interposed between said second counter and said gating means, said switch means providing a signal upon the reaching in said second counter of a predetermined input value, said signal operating to close said gating means and stop the passage of detected value to said first counter and means for indicating the value received by said first counter.
Claim 2
Independent Claim
201 words
A system for measuring and indicating the count and twist of spun yarn formed in an open end spinning unit having feed means for delivering a sliver of fibrous material, a rotary turbine twisting means for spinning said fibrous material into a yarn and withdrawal means for taking up the spun yarn comprising detecting means located at each one of a selected pair of said feeding means, twisting means and withdrawing means for sensing the delivery of the fibers, the twist of the spun yarn and the speed of withdrawal respectively and for providing an output having values proportional to each thereto, a first counter connected to one of said detectors for receiving the output thereof, gating means interposed between said first counter and its associated detector, a second counter connected to the other of said detectors to receive the output thereof, switch means interposed between said second counter and said gating means, said switch means providing a signal upon the reaching in said second counter of a predetermined input value, said signal operating to close said gating means and stop the passage of detected value to said first counter and means for indicating the value received by said first counter.
Claim 3
Dependent Claim
58 words
The system according to claim 1 wherein said first counter is responsive to a detector at said withdrawing means and said second counter is responsive to a detector at said infeed means and said switch means is set at a value proportional to the count of said sliver, thereby the indicator will indicate the count of said yarn.
Claim 4
Dependent Claim
57 words
The system according to claim 1 wherein said first counter is responsive to a detector at said turbine and said second counter is responsive to a detector at said withdrawing means and said switch is set at a value proportional to the count of the spun yarn, thereby the indicator will indicate the twist of said yarn.
Claim 5
Dependent Claim
29 words
The system as claimed in claim 1 including a control unit, the output of which is connected to both counters and its input is connected to said switch means.
Claim 6
Dependent Claim
15 words
The system according to claim 1 including a preselection circuit connected to the first counter.
Claim 7
Dependent Claim
17 words
The system according to claim 1 wherein said second counter is provided with a variable decade switch.
Claim 8
Dependent Claim
26 words
The system according to claim 1 wherein said feed means includes a roller having at least one optical mark and said detecting means comprises a photocell.
Claim 9
Dependent Claim
31 words
The system according to claim 1 characterized in that the twist means comprises a turbine on which is provided at least one optical mark and said detecting means comprises a photocell.
Claim 10
Dependent Claim
32 words
The system according to claim 1 wherein the withdrawing means includes at least one roller on which is provided at least one optical mark and said detector associated therewith comprises a photocell.
References Cited (Backward Citations)
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US3660972A
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US3704579A
Cited
US3680299A
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US3791128A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |