Claims
- 1. A joining apparatus for joining one end of a vertically suspended new electrode to a consumed electrode vertically disposed in an electric furnace, comprising:
- an electric motor for generating a rotational driving torque for rotating the vertically suspended new electrode about the axis thereof;
- connector means for connection with the new electrode at an end away from said one end by means of a screw pair;
- transmission means mechanically connected with said electric motor and said connector means for transmitting the rotational driving torque of the electric motor to said connector means;
- said transmission means including rotatable joint means for coupling said connector means and said transmission means; and
- a cylindrical hood mounted on said joining apparatus and retractable telescopically with respect to said new electrode for covering said new electrode which is suspended from said transmission means through the connector means and the rotatable joint means;
- said cylindrical hood being further provided with a projection at the lower end thereof which is engageable in a groove formed between a first vertical rib and a second vertical rib which is shorter than said first vertical rib, disposed on a holder arm which supports the consumed electrode in the electric furnace when said electrodes are aligned with each other.
Priority Claims (3)
Number |
Date |
Country |
Kind |
4-084782 |
Mar 1992 |
JPX |
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4-084784 |
Mar 1992 |
JPX |
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4-084785 |
Mar 1992 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/430,304 filed Apr. 28, 1995, now U.S. Pat. No. 5,638,358 which in turn is a continuation of application Ser. No. 08/026,566 filed Mar. 4, 1993, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
3445830 |
Jun 1986 |
DEX |
Continuations (2)
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Number |
Date |
Country |
Parent |
430304 |
Apr 1995 |
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Parent |
26566 |
Mar 1993 |
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