US3791599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread supply device for textile machines
Assignee: Iro AB
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Filing: 1972-11-24
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Granted: 1974-02-12
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Expires: 1992-11-24
Abstract
Abstract A device for monitoring the thread supply available in the thread supply means for textile machines. In a thread supply device for a textile machine it is known to provide a transport device movable axially of the thread storage drum for effecting axial movement of said thread along said drum. Means, which in the illustrated embodiment are mechanical means, are provided in connection with said transport device which means, when said transport device in acting on said thread reaches a predetermined axial position, in turn operate to initiate a switching sequence for stopping the textile machine.
Inventors
- 👤 K Jacobsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:57
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/38; D04B15/48; B; B65; B65H; B65H51/00; B65H51/20; B65H51/22; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
139 words
In a thread supply device for effecting a positive thread supply to at least one textIle machine having drive means for activating same, said thread supply device including drum means upon which a thread issuing from a storage bobbin is tangentially wound for forming thread winding thereon and from which the thread can be unwound at a speed not exceeding the winding speed, said supply device also having transport means associated with the drum means for axially moving the thread windings on the drum to form an intermediate thread storage, the improvement comprising monitoring means which scan said intermediate thread storage and which trigger a switching operation when said intermediate thread storage falls below a predetermined value, said monitoring means switching off the drive means of the textile machine when the intermediate thread storage falls below said predetermined value.
Claim 2
Dependent Claim
139 words
In a thread supply device for effecting a positive thread supply to at least one textIle machine having drive means for activating same, said thread supply device including drum means upon which a thread issuing from a storage bobbin is tangentially wound for forming thread winding thereon and from which the thread can be unwound at a speed not exceeding the winding speed, said supply device also having transport means associated with the drum means for axially moving the thread windings on the drum to form an intermediate thread storage, the improvement comprising monitoring means which scan said intermediate thread storage and which trigger a switching operation when said intermediate thread storage falls below a predetermined value, said monitoring means switching off the drive means of the textile machine when the intermediate thread storage falls below said predetermined value.
Claim 3
Dependent Claim
46 words
The device of claim 1, wherein said monitoring means includes said transport means for sensing the size of said intermediate thread storage, and said monitoring means further including switching means activated by movement of said transport means to a predetermined position for triggering said switching operation.
Claim 4
Dependent Claim
45 words
The device of claim 2, wherein said switching means is operatively connected to said drive means for deactivating said drive means and for thus deactivating said textile machine when said switching means is activated due to said intermediate thread storage falling below said predetermined value.
Claim 5
Dependent Claim
82 words
The device of claim 1, wherein said monitoring means includes sensing means for sensing the size of the intermediate thread storage and switching means activated by said sensing means when said sensing means determines that the size of said intermediate thread storage is below said predetermined value, said switching means being operatively connected to said drive means and when activated by said sensing means causing termination of the supply of power to said drive means so as to deactivate said textile machine.
Claim 6
Dependent Claim
103 words
The device according to claim 1, including first means for permitting thread to be supplied to said drum means, second means for causing relative rotation between said first means and said drum means for causing said thread windings to be formed on said drum means, and third means associated with said drum means for causing thread to be unwound from said drum means substantially tangentially thereof for effecting a positive thread supply to said textile machine, and said monitoring means also stopping the relative rotation between said drum means and said first means when said intermediate thread storage falls below said predetermined value.
Claim 7
Dependent Claim
22 words
The device according to claim 5, wherein said drum means is mounted for rotation and is rotatably driven by said second means.
Claim 8
Dependent Claim
102 words
The device according to claim 5, wherein said transport means comprises a transport element mounted on said drum and movable axially relative thereto for urging said thread windings axially of said drum means, said transport element also comprising a part of said monitoring means for sensing the size of said intermediate thread storage, said monitoring means further including switching means operatively connected to said transport element and actuated thereby when said intermediate thread storage falls below said predetermined value, said switching means being operatively associated with the drive means of said textile machine for deactivating same when said switching means is activated.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |