GB535943A - Improvements in and relating to electric furnaces - Google Patents
Improvements in and relating to electric furnacesInfo
- Publication number
- GB535943A GB535943A GB2862939A GB2862939A GB535943A GB 535943 A GB535943 A GB 535943A GB 2862939 A GB2862939 A GB 2862939A GB 2862939 A GB2862939 A GB 2862939A GB 535943 A GB535943 A GB 535943A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- chamber
- refining
- wall
- melting
- 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
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
Abstract
535,943. Electric furnaces. BRITISH THOMSON-HOUSTON CO., Ltd. (Ferguson, J.) Oct. 25, 1939, No. 28629. [Class 39 (iii)] [Also in Group XII] An electric furnace for melting and refining glass comprises a central melting chamber 10 with a forehearth or refining chamber 11 at each side connected by submerged channels 23. A discharge opening 15 is provided in the chamber 10, and openings 20 with orifice rings 21 in the chambers 11. Reciprocating plungers 22 are provided to feed the glass for moulded articles. Gas burners 25 may be provided for reheating the glass in the chambers 11. A graphite electrode 26 is supported by a pair of graphite extensions 27 with steel sheathing 28, from each end wall of the chamber 10. The electrodes are spaced from the walls by relatively cool glass which protects the rear faces and the supports. A space 30 in the wall 17 facilitates freezing of glass which might leak through the wall. In a modification, Fig. 6, no forehearths are employed, and a central discharge opening 32 is provided with an apertured disc 41. The electrodes 37 are considerably above floor level so that a relatively hot melting zone is superposed on a cooler refining zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2862939A GB535943A (en) | 1939-10-25 | 1939-10-25 | Improvements in and relating to electric furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2862939A GB535943A (en) | 1939-10-25 | 1939-10-25 | Improvements in and relating to electric furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB535943A true GB535943A (en) | 1941-04-28 |
Family
ID=10278620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2862939A Expired GB535943A (en) | 1939-10-25 | 1939-10-25 | Improvements in and relating to electric furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB535943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2538970A1 (en) * | 1974-09-06 | 1976-03-25 | Elemelt Ltd | METHOD AND DEVICE FOR MELTING GLASS |
-
1939
- 1939-10-25 GB GB2862939A patent/GB535943A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2538970A1 (en) * | 1974-09-06 | 1976-03-25 | Elemelt Ltd | METHOD AND DEVICE FOR MELTING GLASS |
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