US3705503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming a system of weft threads for further processing in textile machines
Assignee: Elitex Zavody Textilniho
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Filing: 1971-06-04
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Granted: 1972-12-12
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Expires: 1991-06-04
Abstract
Abstract Apparatus for forming a system of weft threads for further processing in textile machines as e.g. stitch knitting machines, warp knitting machines and Raschel machines to the operating mechanisms of which there are fed mutually parallel weft threads. The apparatus includes two continuously and uniformly moving weft thread conveyors which are vertically movable with respect to each other; a first one of such conveyors conveys the weft threads in a longitudinal direction to the operation point of the textile machine, and the second conveys the weft threads transversely from the thread supply onto the said first conveyor. The first longitudinal conveyor is provided with grippers with movable gripping jaws; the second transverse conveyor is provided with at least three transfer battens carrying transfer grippers which are provided with at least three stationary means which come into direct contact with the weft thread and at least one means mounted for movement with respect thereto.
Inventors
- 👤 Josef Skopalik
- 👤 Vladimir Svoboda
- 👤 Vaclav Opatril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
In an apparatus for forming a system of weft threads for further processing in textile machines to the operation mechanisms of which there are fed mutually parallel weft threads, said device including two continuously and uniformly moving weft thread conveyors which are movable vertically with respect to each other, a first one of said conveyors carrying the weft threads in a longitudinal direction to the operation point of the textile machine and the other, second conveyors carrying the weft threads transversely from the supply onto the first said conveyor, the improvement which comprises carrying grippers on the first conveyor, said grippers having movable selectively operable gripping jaws, at least three longitudinally spaced transfer battens on the second conveyor, and transfer grippers on the transfer battens.
Claim 2
Dependent Claim
125 words
In an apparatus for forming a system of weft threads for further processing in textile machines to the operation mechanisms of which there are fed mutually parallel weft threads, said device including two continuously and uniformly moving weft thread conveyors which are movable vertically with respect to each other, a first one of said conveyors carrying the weft threads in a longitudinal direction to the operation point of the textile machine and the other, second conveyors carrying the weft threads transversely from the supply onto the first said conveyor, the improvement which comprises carrying grippers on the first conveyor, said grippers having movable selectively operable gripping jaws, at least three longitudinally spaced transfer battens on the second conveyor, and transfer grippers on the transfer battens.
Claim 3
Dependent Claim
36 words
Apparatus as claimed in claim 1, wherein each of the transfer grippers is provided with at least three stationary means which come into direct contact with the weft thread, and at least one rotatably mounted means.
Claim 4
Dependent Claim
61 words
Apparatus as claimed in claim 1, wherein the stationary means of the transfer gripper are constituted by a stationary jaw provided with a cutting edge and two stationary sinkers, the said cutting edge as well as the two said sinkers being in contact upon closing of the transfer gripper with the operative part of the movable jaw of the transfer gripper.
Claim 5
Dependent Claim
47 words
Apparatus as claimed in claim 2, wherein the second conveyor is connected to the driving mechanism of the associated textile machine by means of a transmission, one component of the transmission being formed by a control box which continuously changes the momentary velocity of the second conveyor.
Claim 6
Dependent Claim
81 words
Apparatus as claimed in claim 1, wherein the transfer grippers have relatively movable jaws, one of said jaws being stationary and the other jaw being movable, the movable jaw of the transfer gripper being made in the form of a two-arm lever, one arm carrying a gripping jaw, the opposite arm the lever having cam control means attached thereto, each system of transfer grippers on one transfer batten having one control batten which selectively interacts with the said cam control means.
Claim 7
Dependent Claim
27 words
Apparatus as claimed in claim 5, comprising spaced cams disposed along the second conveyor for operating the control battens to close and open the transfer grippers, respectively.
Claim 8
Dependent Claim
53 words
Apparatus as claimed in claim 2, wherein the transfer grippers have a movable jaw, the operative part of the movable jaw of the transfer gripper is made in the shape of the letter U, the part thus shaped being provided with a recess one edge of which forms a weft thread cutting blade.
Claim 9
Dependent Claim
45 words
Apparatus as claimed in claim 1, comprising guiding parts for the movable jaws of the carrying grippers provided with a transverse pin, said transverse pin engaging a longitudinally extending slot in the frame of the carrying gripper, whereby to prevent the movable jaw from turning.
Claim 10
Dependent Claim
16 words
Apparatus as claimed in claim 1, wherein the transfer grippers carry sinkers made of elastic material.
Claim 11
Dependent Claim
35 words
Apparatus as claimed in claim 3, wherein in the opened state of the transfer gripper the sinkers are nearer to the operative part of the movable jaw than the cutting edge of the stationary jaw.
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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |