US3821511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Softening apparatus in tandem electric wire manufacture
Assignee: Kobe Steel Ltd
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Filing: 1973-03-07
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Granted: 1974-06-28
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Expires: 1993-03-07
Abstract
Abstract A softening apparatus employed in the heat treatment step in a tandem electric wire manufacturing process wherein wire drawing, heat treating, extrusion coating, cooling and take-up steps are performed in tandem, for softening a core wire including a tension stabilizing mechanism for setting the tension of core wire in the heat treating step independently of the tension of the core wire in the subsequent steps being formed of a first dancer roller, a second dancer roller and a first capstan positioned between the first dancer roller and the second dancer roller, a softening mechanism for elevating the temperature of the core wire to its softening temperature being positioned in advance of the first dancer roller and a reheating mechanism for reheating the softened core wire being positioned between the first dancer roller and the first capstan.
Inventors
- 👤 K Sugano
- 👤 Y Ikegami
- 👤 H Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/38; C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; H; H01; H01B; H01B13/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
89 words
A softening apparatus employed in the heat treating step in a tandem electric wire manufacturing process wherein wire drawing, heat treating, extrusion coating, cooling and take-up steps are performed in tandem, comprising: a tension stabilizing mechanism for setting the tension of core wire in the heat treating step independently of the tension of the core wire in the subsequent steps, said tension stabilizing mechanism being formed of a first dancer roller, a second dancer roller and a first capstan between the first dancer roller and the second dancer roller.
Claim 2
Dependent Claim
89 words
A softening apparatus employed in the heat treating step in a tandem electric wire manufacturing process wherein wire drawing, heat treating, extrusion coating, cooling and take-up steps are performed in tandem, comprising: a tension stabilizing mechanism for setting the tension of core wire in the heat treating step independently of the tension of the core wire in the subsequent steps, said tension stabilizing mechanism being formed of a first dancer roller, a second dancer roller and a first capstan between the first dancer roller and the second dancer roller.
Claim 3
Dependent Claim
33 words
A softening apparatus according to claim 1, further comprising a softening mechanism for elevating the temperature of the core wire to its softening temperature being disposed in advance of the first dancer roller.
Claim 4
Dependent Claim
29 words
A softening apparatus according to claim 2, further comprising a reheating mechanism for reheating the softened core wire being positioned between the first dancer roller and the first capstan.
Claim 5
Dependent Claim
48 words
A softening apparatus according to claim 3, further comprising a hot air generator for preventing the reheated core wire from cooling being positioned between said first capstan and said second dancer roller, and said first capstan and said second dancer roller being surrounded by a heat insulating wall.
Claim 6
Dependent Claim
57 words
A softening apparatus according to claim 2, further comprising: a first driving system having a first motor for driving said softening mechanism and a first stepless speed change gear; and a second driving system having a second motor for driving said first capstan and a second stepless speed change gear being independent of said first driving system.
Claim 7
Dependent Claim
47 words
A softening apparatus according to claim 5, further comprising a mechanism for controlling said first driving system by making a change in said first dancer roller and for controlling said first driving system and said second driving system by making a change in said second dancer roller.
Claim 8
Dependent Claim
27 words
A softening apparatus according to claim 5, further comprising clutch means for selectively connecting said first stepless speed change gear and said second stepless speed change gear.
Claim 9
Dependent Claim
49 words
A softening apparatus according to claim 1, further comprising a driving system for rotating a shaft supporting a sheave which does not transmit driving force to the core wire in synchronism with the rotation speed of the sheave, and a bearing mechanism positioned between the sheave and the shaft.
Claim 10
Dependent Claim
27 words
A softening apparatus according to claim 2, wherein the softening mechanism comprises a sheave constructed of a highly conductive material for passing current through the core wire.
Claim 11
Dependent Claim
27 words
A softening apparatus according to claim 3, wherein the reheating mechanism comprises a sheave constructed of a highly conductive material for passing current through the core wire.
Claim 12
Dependent Claim
31 words
A softening apparatus according to claim 5, further comprising a mechanism for controlling said first driving system and said second driving system by making a change in said second dancer roller.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |