Patent US3872660A successfully refreshed from Google Patents.
US3872660A
Expired / Lapsed
US
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Methods of, and apparatus for, the manufacture of stranded cables
Assignee: Science Research Council
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Filing: 1973-11-23
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Granted: 1975-03-25
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Expires: 1993-11-23
Abstract
Abstract A method of manufacturing stranded cables having non-circular cross-section comprising drawing the strands through spaced-apart locations constrained to move around a predetermined non-circular path defining a shape corresponding generally to the desired cross-section of the cable, and subsequently passing the strands through first a stranding plate and then a die whilst maintaining a drawing force on the strands. Each of the locations comprises in effect, an off-centre point location on a disc caused to be driven around and in contact with the inside of a circle so that the point locations move with a substantially constant linear velocity. Alternatively each of the locations comprises, in effect, a point location on an endless chain caused to move to describe a shape corresponding generally to the desired cross-section of the cable.
Inventors
- 👤 George Edwar Gallagher-Daggitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:29
CPC Classifications
D; D07; D07B; D07B5/00; D07B1/00; D07B1/22; D07B3/00; D07B3/02; D07B3/04; D07B3/06; H; H01; H01B; H01B13/00; H01B13/02; H01B13/0278; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/917; Y10S505/928; Y10S505/93
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
A method of manufacturing stranded cable having a non-circular cross-section, comprising drawing separate strands through a plurality of Spaced-apart location means whilst said means are each constrained to move around a predetermined non-circular path transverse to the general line of drawing and defining a shape corresponding generally to the desired non-circular cross-section of the cable, and subsequently gathering the strands together in a die means having an opening corresponding in shape with the non-circular cross-section of the cable whilst a drawing force is maintained on the strands.
Claim 2
Independent Claim
87 words
A method of manufacturing stranded cable having a non-circular cross-section, comprising drawing separate strands through a plurality of Spaced-apart location means whilst said means are each constrained to move around a predetermined non-circular path transverse to the general line of drawing and defining a shape corresponding generally to the desired non-circular cross-section of the cable, and subsequently gathering the strands together in a die means having an opening corresponding in shape with the non-circular cross-section of the cable whilst a drawing force is maintained on the strands.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein, after passage through said location means, the strands are caused to pass first through a stranding plate and then through the die.
Claim 4
Dependent Claim
47 words
The method of claim 1, wherein each of the location means comprises, in effect, an off-centre point location on a disc caused to be driven around and in contact with the inside of a circle so that the point locations move with a substantially constant linear velocity.
Claim 5
Dependent Claim
37 words
The method of claim 1, wherein each of the locations means comprises, in effect, a point location on an endless chain caused to move to describe a shape corresponding generally to the desired cross-section of the cable.
Claim 6
Dependent Claim
94 words
Apparatus for manufacturing stranded cable having a noncircular cross-section, comprising means for drawing separate strands through a plurality of spaced-apart guides, means constraining said guides to move around a predetermined noncircular path transverse to the general line of drawing and defining a shape corresponding generally to the desired noncircular cross-section of the cable, die means provided with a die opening corresponding to said non-circular cross-section of the cable and located and arranged such that the strands pass through said opening after passage through said guides, and means for moving said guides around said path.
Claim 7
Dependent Claim
94 words
Apparatus for manufacturing stranded cable having a noncircular cross-section, comprising means for drawing separate strands through a plurality of spaced-apart guides, means constraining said guides to move around a predetermined noncircular path transverse to the general line of drawing and defining a shape corresponding generally to the desired noncircular cross-section of the cable, die means provided with a die opening corresponding to said non-circular cross-section of the cable and located and arranged such that the strands pass through said opening after passage through said guides, and means for moving said guides around said path.
Claim 8
Dependent Claim
45 words
Apparatus as claimed in claim 5, wherein each guide has a generally circular profile and defines an off-centre strand guide hole, and means are provided for driving the guides around and in contact with the periphery of a circular aperture formed in a guide-locating structure.
Claim 9
Dependent Claim
39 words
Apparatus as claimed in claim 6, wherein the guide-locating structure is rotatable and the guides are disposed between the periphery of the circular aperture of said structure and the periphery of a stationary guide-support structure of generally circular profile.
Claim 10
Dependent Claim
34 words
Apparatus as claimed in claim 5, wherein each guide is carried by an endless structure which is caused to move so as to describe a shape generally to the desired cross-section of the cable.
Claim 11
Dependent Claim
14 words
Apparatus as claimed in claim 8, wherein the endless structure comprises an endless chain.
Claim 12
Dependent Claim
32 words
Apparatus as claimed in claim 7, wherein the guide-locating structure and the guides it locates are duplicated, said structures being disposed in tandem so as to be rotatable about a common axis.
Claim 13
Dependent Claim
27 words
Apparatus as claimed in claim 8, wherein the endless structure is duplicated, the two structures being disposed in tandem so that they move in substantially parallel planes.
References Cited (Backward Citations)
US1951513A
Cited
US2043130A
Cited
US2058234A
Cited
US2530726A
Cited
US2882676A
Cited
US3641755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |