GB130288A - Improvements in Electric Furnaces. - Google Patents
Improvements in Electric Furnaces.Info
- Publication number
- GB130288A GB130288A GB521219A GB521219A GB130288A GB 130288 A GB130288 A GB 130288A GB 521219 A GB521219 A GB 521219A GB 521219 A GB521219 A GB 521219A GB 130288 A GB130288 A GB 130288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- magnesite
- dolomite
- bricks
- tar
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/12—Working chambers or casings; Supports therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
130,288. Marriott, G. March 3, 1919. Electrode furnaces.-A hearth comprises a layer a of fine dolomite and tar, a covering b of asbestos millboard extending partly up the sides and around the doors and spout, and a copper or bronze plate c with a tail piece extending through the wall to which a supply conductor is connected; the plate c is surrounded by slightly higher magnesite bricks d, and is covered with graphite powder e to the level of the bricks. A single course f of magnesite bricks is built round the sides. Within the shell thus formed is packed a bed g about twelve inches thick composed of dolomite 60 per cent, magnesite 30 per cent, fine metal clippings 8 per cent, graphite 2 per cent, with a binding of tar. Above this is packed a second bed h six inches thick composed of dolomite 60 per cent, magnesite 30 per cent, metal clippings 10 per cent, and tar binding. Above this are sloping sides i composed of dolomite 60 per cent and magnesite 40 per cent. The upper walls are built of silica bricks k, resting on a layer j of fine chrome ore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB521219A GB130288A (en) | 1919-03-03 | 1919-03-03 | Improvements in Electric Furnaces. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB521219A GB130288A (en) | 1919-03-03 | 1919-03-03 | Improvements in Electric Furnaces. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB130288A true GB130288A (en) | 1919-07-31 |
Family
ID=32342083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB521219A Expired GB130288A (en) | 1919-03-03 | 1919-03-03 | Improvements in Electric Furnaces. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB130288A (en) |
-
1919
- 1919-03-03 GB GB521219A patent/GB130288A/en not_active Expired
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