US3563281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for operating a weaving machine
Assignee: Sulzer AG
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Filing: 1969-03-06
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Granted: 1971-02-16
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Expires: 1989-03-06
Abstract
Abstract The actuation of various components such as a weft thread brake or weft thread stop motion are positively controlled in response to the arrival of the weft insertion element at a predetermined point in the catcher. The arrival of the weft insertion element can be determined mechanically, photoelectrically or magnetically and such determination is used to actuate the other machine components in dependence thereon.
Inventors
- 👤 Erwin Pfarrwaller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:24
CPC Classifications
D; D03; D03D; D03D49/00; D03D49/58; D03D47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
In combination with a weaving machine having a picking motion and a catching motion disposed on opposite sides of a shed for picking a weft thread insertion element through the shed and at least a weft thread stop having a movably mounted weft thread feeler for resiliently contacting a weft thread during the picking, said stop being disposed to stop the weaving machine in response to pivoting of said feeler towards a weft thread upon breakage of the weft thread during picking; a control system including a sensing means located outside the shed on the catching motion side for sensing the arrival of the weft insertion element at a predetermined point thereat and for emitting a first signal in response to the sensed arrival of the element, and second means connecting said sensing means to said weft thread stop for actuation of said stop in response to said signal to prevent pivoting of said feeler towards the weft thread.
Claim 2
Dependent Claim
159 words
In combination with a weaving machine having a picking motion and a catching motion disposed on opposite sides of a shed for picking a weft thread insertion element through the shed and at least a weft thread stop having a movably mounted weft thread feeler for resiliently contacting a weft thread during the picking, said stop being disposed to stop the weaving machine in response to pivoting of said feeler towards a weft thread upon breakage of the weft thread during picking; a control system including a sensing means located outside the shed on the catching motion side for sensing the arrival of the weft insertion element at a predetermined point thereat and for emitting a first signal in response to the sensed arrival of the element, and second means connecting said sensing means to said weft thread stop for actuation of said stop in response to said signal to prevent pivoting of said feeler towards the weft thread.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |