Patent US3981131A successfully refreshed from Google Patents.
US3981131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed twisting machine
Assignee: Oerlikon Barmag AG
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Filing: 1975-02-11
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Granted: 1976-09-21
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Expires: 1995-02-11
Abstract
Abstract A high-speed wire twisting machine with feed spools in cradle-type carriers rockingly mounted between paired rotors which have hollow axial passages and are aligned at spaced intervals on the twisting axis, each spool carrier being provided with deflection means to guide the wires, as they are initially drawn off and plied through the axis of the rotors in a forward direction, around each cradled feed spool, and the last rotor at the front end of the machine being provided with a guide over which the plied wires are drawn off and deflected outwardly to be returned to a rear outlet end of the machine, especially with a two-for-one twisting with the plied wires forming individual balloons between each pair of rotors. Twist stop means are preferably mounted in the front carrier which contains a feed spool or for special purposes a wire treatment means in place of the feed spool.
Inventors
- 👤 Wolfgang Hartig
- 👤 Dietrich Berges
- 👤 Heinz Schippers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:19
CPC Classifications
D; D07; D07B; D07B3/00; D07B3/02; D07B3/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
255 words
In a high-speed twisting machine including (a) a plurality of individual rotors which are arranged in alignment one behind the other, which are driven at the same rotational speed and which contain guides for wires linearly intersecting the common twisting axis of the rotors, (b) a plurality of spool carriers which are rockingly mounted between two individual rotors, (c) feed spools on which wire is stored, each spool being mounted for rotation in one of the spool carriers, (d) guide means which are connected for outward extension from the individual rotors and which serve to guide the wire arriving at the rear outlet end of the machine from the front end thereof around the spool carriers and feed spools situated in the rearward direction of wire travel and (e) a winding means at the outlet end of the machine to take-up the plied and twisted wires, the improved combination in said machine for two-for-one twisting which comprises: rotors having hollow axial passages; and spool carriers having deflection means for guiding the wires which are initially forwardly drawn off through the axis of the rotors so as to pass said wires around each feed spool in the forward take-off direction, the last rotor at the front end of the machine having a guide over which the wires after being drawn off forwardly through the axis of the rotors and collected into a bundle are deflected outwardly to be returned to the rear outlet end of the machine while forming individual balloons between each two adjacent rotors.
Claim 2
Dependent Claim
255 words
In a high-speed twisting machine including (a) a plurality of individual rotors which are arranged in alignment one behind the other, which are driven at the same rotational speed and which contain guides for wires linearly intersecting the common twisting axis of the rotors, (b) a plurality of spool carriers which are rockingly mounted between two individual rotors, (c) feed spools on which wire is stored, each spool being mounted for rotation in one of the spool carriers, (d) guide means which are connected for outward extension from the individual rotors and which serve to guide the wire arriving at the rear outlet end of the machine from the front end thereof around the spool carriers and feed spools situated in the rearward direction of wire travel and (e) a winding means at the outlet end of the machine to take-up the plied and twisted wires, the improved combination in said machine for two-for-one twisting which comprises: rotors having hollow axial passages; and spool carriers having deflection means for guiding the wires which are initially forwardly drawn off through the axis of the rotors so as to pass said wires around each feed spool in the forward take-off direction, the last rotor at the front end of the machine having a guide over which the wires after being drawn off forwardly through the axis of the rotors and collected into a bundle are deflected outwardly to be returned to the rear outlet end of the machine while forming individual balloons between each two adjacent rotors.
Claim 3
Dependent Claim
28 words
A high-speed twisting machine as claimed in claim 1 wherein a twist stop means is associated with the last spool carrier at the front end of the machine.
Claim 4
Dependent Claim
27 words
A high-speed twisting machine as claimed in claim 1 wherein a wire preforming means is mounted in the last rotor at the front end of the machine.
Claim 5
Dependent Claim
42 words
A high-speed twisting machine as claimed in claim 1 wherein strand processing means are arranged is a separate carrier member rockingly mounted between the last rotor at the front end of the machine and the next adjacent rotor of a spool carrier.
Claim 6
Dependent Claim
33 words
A high-speed twisting machine as claimed in claim 1 wherein strand processing means are arranged at the rear outlet end of the machine where the twisted strand is withdrawn by a winding means.
Claim 7
Dependent Claim
33 words
A high-speed twisting machine as claimed in claim 1 wherein a wire treating means is mounted in a freely rocking carrier between the last two rotors at the front end of said machine.
Claim 8
Dependent Claim
99 words
A high speed twisting machine as claimed in claim 1 including a twist stop means associated with the last spool carrier at the front end of the machine, and feed guide means on said last spool carrier to draw off the wire from the feed spool carried thereon such that the wire first passes in a direction toward the rear end of the machine and then to a point where this wire is joined with at least one preceding wire for passage of the resulting bundle of wires around said last spool carrier and through said twist stop means.
Claim 9
Dependent Claim
99 words
A high speed twisting machine as claimed in claim 1 including a wire preforming means associated with the last spool carrier at the front end of the machine, and feed guide means on said last spool carrier to draw off the wire from the feed spool carried thereon such that the wire first passes in a direction toward the rear end of the machine and then to a point where this wire is joined with at least one preceding wire for passage of the resulting bundle of wires around said last spool carrier and through said wire preforming means.
Claim 10
Dependent Claim
110 words
A high speed twisting machine as claimed in claim 1 including a twist stop means and a wire preforming means associated with the last spool carrier at the front end of the machine, and feed guide means on said last spool carrier to draw off the wire from the feed spool carried thereon such that the wire first passes in a direction toward the rear end of the machine and then to a point where this wire is joined with at least one preceding wire for passage of the resulting bundle of wires around said last spool carrier and sequentially through said twist stop means and said wire preforming means.
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) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |