Patent US3583651A successfully refreshed from Google Patents.
US3583651A
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Method and apparatus for feeding parallel wire strands
Assignee: Glanzstoff AG
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Filing: 1969-04-29
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Granted: 1971-06-08
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Expires: 1989-04-29
Abstract
Abstract Method and apparatus for feeding or delivering a group of parallel wire strands under controlled tension wherein a feed spool on which the strands are spirally coiled in layers separated by an interwound metal band is indirectly driven by rewinding the metal band on a second takeup spool having variable-speed drive means, and the rate of feed of the wire strands being unwound from the feed spool is regulated by sensing the position of a freely hanging or slack portion of the strands between the feed spool and a braking device which subsequently provides a controlled tension on the strands for further processing.
Inventors
- 👤 Kurt-Jurgen Schulze
- 👤 Heinrich Giesen
- 👤 Wilhelm Haas
- 👤 Kurt Heuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:43
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/38; B65H59/384; B65H59/387; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/44; B65H49/00; B65H49/18; B65H49/34; B65H2701/00; B65H2701/30; B65H2701/38; B65H2701/39; B65H2701/3916
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
197 words
A method of feeding a plurality of wire strands under controlled tension, said strands lying parallel and closely adjacent one another while wound in layers around a feed spool with the individual layers being separated from each other by a metal band interwound therebetween, said method comprising: unwinding said metal band to rotatably drive said feed spool, thereby unwinding said plurality of wire strands to form a planar group thereof which is lifted off said feed spool; supplying the planar group of wire strands over a free space, in which the tension of the strands results essentially from their own weight, to a braking interval wherein a controlled tension is commonly imparted to said strands for further processing, said group of wire strands sagging downwardly in the free space between the liftoff line on said feed spool and the braking interval; and controlling the speed of the unwinding metal band in response to the position of the group of wire strands sagging in said free space. 2. A method as claimed in claim 1 wherein the force of tension imparted to each of said strands in said braking interval amounts to not more than about 2 kilograms.
Claim 2
Dependent Claim
36 words
A method as claimed in claim 1 wherein the unwinding and runoff of the wire strands is damped by applying a braking pressure which to said feed spool counteracts the unwinding pull of the metal band.
Claim 3
Dependent Claim
206 words
Apparatus for feeding a plurality of wire strands under controlled tension, said strands lying parallel and closely adjacent one another while wound in layers around a feed spool with the individual layers being separated from each other by a metal band interwound therebetween, said apparatus comprising: a pair of flanged spools supported rotatably about horizontal parallel axes, the first of said spools viewed in the feed direction of the wire strands being arranged to take up the metal band from the second of said spools which acts as the feed spool; drive means with controllable speed to positively rotate said first spool with the metal band being wound thereon operating to indirectly drive said second spool; braking means to apply a tension on said plurality of wire strands as they are drawn into further processing, said braking means being arranged at a spaced distance from said second spool in the feed direction such that the wire strands hang freely in a feed path between said second spool and said braking means; a sensing member arranged in riding contact with the freely hanging feed path of said wire strands; and means responsive to the movement of said sensing member to vary the speed of said drive means.
Claim 4
Dependent Claim
206 words
Apparatus for feeding a plurality of wire strands under controlled tension, said strands lying parallel and closely adjacent one another while wound in layers around a feed spool with the individual layers being separated from each other by a metal band interwound therebetween, said apparatus comprising: a pair of flanged spools supported rotatably about horizontal parallel axes, the first of said spools viewed in the feed direction of the wire strands being arranged to take up the metal band from the second of said spools which acts as the feed spool; drive means with controllable speed to positively rotate said first spool with the metal band being wound thereon operating to indirectly drive said second spool; braking means to apply a tension on said plurality of wire strands as they are drawn into further processing, said braking means being arranged at a spaced distance from said second spool in the feed direction such that the wire strands hang freely in a feed path between said second spool and said braking means; a sensing member arranged in riding contact with the freely hanging feed path of said wire strands; and means responsive to the movement of said sensing member to vary the speed of said drive means.
Claim 5
Dependent Claim
34 words
Apparatus as claimed in claim 4 wherein the axial displacement between the two spools is smaller than the difference between the width of the metal band and the clear width of the spool flanges.
Claim 6
Dependent Claim
51 words
Apparatus as claimed in claim 4 wherein said braking means for the wire strands includes a comb to receive and guide the strands from said feed spool, a flat magnetic plate supporting the strands adjacent said comb, and a plurality of rollers adapted to exert a braking tension on said strands.
Claim 7
Dependent Claim
131 words
Apparatus as claimed in claim 6 wherein at least three rollers are in tangential contact above and below said wire strands with at least one of said rollers bearing a brakedrum partially encircled by a frictionally engaged band which is connected to a lever arm having a weight slidable thereon to control the load placed on said brakedrum by said frictionally engaged band. 8. Apparatus as claimed in claim 4 wherein each spool is rigidly connected to its axle which carries a brakedrum projecting axially outwardly from the flange at one end of the spool, said axle being turnably supported in a trestle-supporting means, and a frictional braking member mounted on said trestle-supporting means to frictionally engage said brakedrum on its cylindrical surface with means to vary the resulting frictional load.
Claim 8
Dependent Claim
45 words
Apparatus as claimed in claim 8 wherein said spool, axle, brakedrum, supporting trestle and frictional braking member constitute a single movable unit for each of the two spools, and each unit is positioned on a baseplate having means to releasably fasten the units in place.
Claim 9
Dependent Claim
48 words
Apparatus as claimed in claim 8 wherein said drive means with controllable speed is positioned between the unit carrying the feed spool and the unit carrying the takeup spool, and said drive means is operably connected to said takeup spool by a drive belt engaging the projecting drum.
Claim 10
Dependent Claim
24 words
A method as claimed in claim 1 wherein the unwinding metal band is collected on a positively driven takeup spool at a controlled speed.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |