US3665974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for preparing a weft
Assignee: Machinefabriek L te Strake NV
•
Filing: 1971-08-02
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Granted: 1972-05-30
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Expires: 1991-08-02
Abstract
Abstract A presenting device for conducting a weft thread is rotatable on an axis and has an axial thread inlet and a thread outlet at a point spaced from the axis. A member for temporarily storing a loop in the thread has an entrance arranged adjacent to the path of rotation of the thread outlet of the presenting device, to receive a loop of thread from such outlet. A thread clamp is arranged adjacent to the entrance of the storing member for clamping one end of such loop of thread, and a weft inserting device is arranged adjacent to the path of rotation of the thread outlet of the presenting device, to receive the other end of the loop of thread from such outlet.
Inventors
- 👤 Antionius Martinus Barten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
143 words
A device for preparing successive weft threads for insertion into the successive sheds in a loom comprising a weft threadpresenting device which is rotatable on an axis, and which has an axial thread inlet and has a thread outlet at a point spaced from the axis, two members for temporarily storing loops of thread, each having an entrance arranged adjacent to the path of rotation of the thread outlet of the presenting device, to hold a loop of the thread issuing from such outlet, two thread clamps arranged on opposite sides of the presenting device for clamping the thread between the storing members, a thread-cutting device arranged adjacent to one of the thread clamps, and a weft inserting device arranged adjacent to the path of rotation of the thread outlet of the presenting device, for inserting successive weft threads into the successive sheds.
Claim 2
Independent Claim
143 words
A device for preparing successive weft threads for insertion into the successive sheds in a loom comprising a weft threadpresenting device which is rotatable on an axis, and which has an axial thread inlet and has a thread outlet at a point spaced from the axis, two members for temporarily storing loops of thread, each having an entrance arranged adjacent to the path of rotation of the thread outlet of the presenting device, to hold a loop of the thread issuing from such outlet, two thread clamps arranged on opposite sides of the presenting device for clamping the thread between the storing members, a thread-cutting device arranged adjacent to one of the thread clamps, and a weft inserting device arranged adjacent to the path of rotation of the thread outlet of the presenting device, for inserting successive weft threads into the successive sheds.
Claim 3
Dependent Claim
34 words
A device according to claim 1 wherein the presenting device is rotatably mounted in a housing that forms a connection between two storing members which are diametrically arranged on opposite sides of the housing.
Claim 4
Dependent Claim
43 words
A device according to claim 1 wherein the presenting device is in the shape of a solid of revolution, and has a thread inlet in the form of an axial channel leading to a thread outlet in the form of a radial channel.
Claim 5
Dependent Claim
27 words
A device according to claim 3 wherein the axial channel is connected to a source of fluid under pressure for propelling the thread through the presenting device.
Claim 6
Dependent Claim
43 words
A device according to claim 1 wherein the presenting device is rotatably mounted in a housing having slots which lie substantially in the path of rotation of the thread outlet of the presenting device and which form the entrances of the storing members.
Claim 7
Dependent Claim
19 words
A device according to claim 5 wherein the housing has an additional opening leading to the weft inserting device.
Claim 8
Dependent Claim
22 words
A device according to claim 6 wherein a thread clamp is provided adjacent to the opening leading to the weft inserting device.
Claim 9
Dependent Claim
38 words
A device according to claim 1 wherein the presenting device has a cylindrical surface that is penetrated by the thread outlet, and the entrance of each storing member conforms to and is closely spaced from such cylindrical surface.
Claim 10
Dependent Claim
31 words
A device according to claim 8 wherein the cylindrical surface extends around substantially one-half of the circumference of the presenting device, between two notches extending radially inward from the cylindrical surface.
Claim 11
Dependent Claim
21 words
A device according to claim 8 wherein the presenting device is provided with a step extending outward below the cylindrical surface.
Claim 12
Dependent Claim
19 words
A device according to claim 10 wherein a portion of the cylindrical surface is bevelled inward from the step.
References Cited (Backward Citations)
US3443603A
Cited
US3587664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |