GB1288977A - - Google Patents
Info
- Publication number
- GB1288977A GB1288977A GB1288977DA GB1288977A GB 1288977 A GB1288977 A GB 1288977A GB 1288977D A GB1288977D A GB 1288977DA GB 1288977 A GB1288977 A GB 1288977A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- pipe
- piston
- cylinder
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/109—Feeding arrangements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
1288977 Preventing breakage of are furnace electrodes L VALSECCHI 2 Dec 1969 [19 April 1969] 58692/69 Heading H5H The electrode 12 is raised by pressure of liquid supplied through pipe 11 and subsequently, during use, is allowed to fall slowly under its own weight which is balanced by the pressure fluid. The pressure drives the piston in cylinder 1 to the bottom and maintains the electrical contacts (15, 16) closed to maintain the circuit to the regulator control. A constant pressure of fluid, less than the working pressure in pipe 11 is maintained through reservoir 9 to the underside of the piston in the cylinder 1. If the electrode meets an obstruction in its downward travel, the pressure in pipe 11 falls until it is less than the pressure in reservoir 9, with the result that the piston in cylinder 1 is raised by the latter. In consequence, the electrical contacts (15, 16) are opened and cause regulator to increase the pressure in pipe 11 and raise the electrode assembly.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT274769 | 1969-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1288977A true GB1288977A (en) | 1972-09-13 |
Family
ID=11103370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1288977D Expired GB1288977A (en) | 1969-04-19 | 1969-12-02 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE742538A (en) |
| DE (1) | DE6947778U (en) |
| FR (1) | FR2041969A5 (en) |
| GB (1) | GB1288977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3242934A1 (en) * | 1982-11-20 | 1984-05-24 | Mannesmann Rexroth GmbH, 8770 Lohr | CONTROL DEVICE FOR ADJUSTING THE ELECTRODE OF AN ARC FURNACE |
-
1969
- 1969-11-26 FR FR6940709A patent/FR2041969A5/fr not_active Expired
- 1969-12-02 GB GB1288977D patent/GB1288977A/en not_active Expired
- 1969-12-02 BE BE742538D patent/BE742538A/xx unknown
- 1969-12-08 DE DE19696947778 patent/DE6947778U/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3242934A1 (en) * | 1982-11-20 | 1984-05-24 | Mannesmann Rexroth GmbH, 8770 Lohr | CONTROL DEVICE FOR ADJUSTING THE ELECTRODE OF AN ARC FURNACE |
| US4586187A (en) * | 1982-11-20 | 1986-04-29 | Mannesmann Rexroth Gmbh | Control apparatus for controlling movements of an electrode in an electric arc furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| DE6947778U (en) | 1970-04-16 |
| BE742538A (en) | 1970-05-14 |
| FR2041969A5 (en) | 1971-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |