US3695022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the interruption of silver supply in open end spinning machines
Assignee: Rieter Ingolstadt GmbH
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Filing: 1970-10-19
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Granted: 1972-10-03
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Expires: 1990-10-19
Abstract
Abstract Sliver supplied to a combing machine and/or to an open end spinning machine is clamped closely adjacent to the line of contact between a driven supply roll and a resiliently engaged cooperating loading device, the distance between the contact line and the clamping location preferably being less than the average staple fiber length in the sliver. Such sliver clamp, when actuated, simultaneously separates the loading device from the driven supply roll, and when such clamp is released the supply of sliver to the separator is resumed automatically.
Inventors
- 👤 Hans Landwehrkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:11
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/14; D01H13/16; D01H13/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
The method of interrupting the supply of a fiber sliver to open-end spinning machines including fiber sliver feed means having a driven roller and resiliently mounted loading means engageable therewith, separating means for separating the fiber sliver into individual fibers, and spinning means receiving such fibers for spinning into the tail end of a thread, which comprises the steps of the fiber sliver at a location immediately upstream from the engaged portions of the feed means driven roller and loading means, raising the loading means out of engagement with the driven roller, and separating the sliver portion beyond the clamping location and which is within reach of the separating means into individual fibers and supplying such fibers to the spinning means by continuing to drive the driven roller, the separating means and the spinning means.
Claim 2
Independent Claim
135 words
The method of interrupting the supply of a fiber sliver to open-end spinning machines including fiber sliver feed means having a driven roller and resiliently mounted loading means engageable therewith, separating means for separating the fiber sliver into individual fibers, and spinning means receiving such fibers for spinning into the tail end of a thread, which comprises the steps of the fiber sliver at a location immediately upstream from the engaged portions of the feed means driven roller and loading means, raising the loading means out of engagement with the driven roller, and separating the sliver portion beyond the clamping location and which is within reach of the separating means into individual fibers and supplying such fibers to the spinning means by continuing to drive the driven roller, the separating means and the spinning means.
Claim 3
Independent Claim
109 words
An apparatus for an open-end spinning machine having a spinning means for spinning individual fibers into a thread and a separating means for separating a fiber sliver into individual fibers and guiding these fibers to said spinning means, comprising feed means for feeding the fiber sliver to the separating means including a driven roller and resiliently mounted loading means normally engageable with said roller, clamping means located immediately upstream from said feed means and operable to clamp the fiber sliver, means for disengaging said loading means from said driven roller when said clamping means is in its sliver-retaining position, and control means for actuating and deactuating said clamping means.
Claim 4
Independent Claim
109 words
An apparatus for an open-end spinning machine having a spinning means for spinning individual fibers into a thread and a separating means for separating a fiber sliver into individual fibers and guiding these fibers to said spinning means, comprising feed means for feeding the fiber sliver to the separating means including a driven roller and resiliently mounted loading means normally engageable with said roller, clamping means located immediately upstream from said feed means and operable to clamp the fiber sliver, means for disengaging said loading means from said driven roller when said clamping means is in its sliver-retaining position, and control means for actuating and deactuating said clamping means.
Claim 5
Dependent Claim
72 words
The apparatus defined in claim 2, in which the control means is operable to effect conjointly sliver-clamping movement of the clamping means and movement of the disengaging means for disengaging the loading means from the driven roller and the control means is further operable to effect conjointly release of the fiber sliver from the clamping means and movement of the disengaging means for reengagement of the loading means with the driven roller.
Claim 6
Dependent Claim
22 words
The apparatus defined in claim 3, in which the loading means and the clamping means are pivotally mounted on a common axis.
Claim 7
Dependent Claim
21 words
The apparatus defined in claim 2, the clamping means carrying the fiber sliver guiding means upstream from the sliver clamping location.
Claim 8
Dependent Claim
48 words
The apparatus defined in claim 1, in which the loading means is a feed plate, the clamping means is a center-pivoted hooked lever including a first arm having a hook with a clamping end pressable against said feed plate, and a second arm swingable by the control means.
Claim 9
Dependent Claim
24 words
The apparatus defined in claim 1, the control means being both operable by an electrical connection with a thread breakage detector and manually operable.
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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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |