GB533977A - Improvements in and relating to electric furnaces - Google Patents
Improvements in and relating to electric furnacesInfo
- Publication number
- GB533977A GB533977A GB2844539A GB2844539A GB533977A GB 533977 A GB533977 A GB 533977A GB 2844539 A GB2844539 A GB 2844539A GB 2844539 A GB2844539 A GB 2844539A GB 533977 A GB533977 A GB 533977A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- core
- apertures
- current winding
- trough
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/021—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by induction heating
-
- 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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/16—Furnaces having endless cores
- H05B6/18—Furnaces having endless cores having melting basin
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Furnace Details (AREA)
- General Induction Heating (AREA)
Abstract
533,977. Electric induction furnaces. BRITISH THOMSON-HOUSTON CO., Ltd. (Ferguson, J.). Oct. 23, 1939, No. 28445. [Class 39 (iii)] An induction furnace suitable for glass manufacture, comprises an annular trough 10 through the centre of which passes a vertical laminated core 21 of magnetic material, forming part of a ring carrying an alternating current winding, and a direct current winding to control the saturation of the magnetic core. The trough 10 contains a secondary ring of graphite 12 with a core 13 of molybdenum to prevent it from floating. Apertures 15 are provided for circulation of the molten material. To provide a higher temperature at one point, e.g. near the shoot 18, than at another, e.g. the discharge opening 29, the effective cross section of the ring 12 is reduced at the zone 30 by closer spacing of the apertures 15, and the electrical resistance thereby increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2844539A GB533977A (en) | 1939-10-23 | 1939-10-23 | Improvements in and relating to electric furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2844539A GB533977A (en) | 1939-10-23 | 1939-10-23 | Improvements in and relating to electric furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB533977A true GB533977A (en) | 1941-02-25 |
Family
ID=10275734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2844539A Expired GB533977A (en) | 1939-10-23 | 1939-10-23 | Improvements in and relating to electric furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB533977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700062753A1 (en) * | 2017-06-09 | 2018-12-09 | Esco Tech | Induction furnace for glass fusion |
-
1939
- 1939-10-23 GB GB2844539A patent/GB533977A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700062753A1 (en) * | 2017-06-09 | 2018-12-09 | Esco Tech | Induction furnace for glass fusion |
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