GB678262A - Improvements in and relating to electric furnaces - Google Patents
Improvements in and relating to electric furnacesInfo
- Publication number
- GB678262A GB678262A GB21211/45A GB2121145A GB678262A GB 678262 A GB678262 A GB 678262A GB 21211/45 A GB21211/45 A GB 21211/45A GB 2121145 A GB2121145 A GB 2121145A GB 678262 A GB678262 A GB 678262A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terminals
- bar
- graphite
- magnetic
- extensions
- 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
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance 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
- H05B3/00—Ohmic-resistance heating
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
678,262. Couplings. REVERE COPPER & BRASS, Inc. Aug. 20, 1945 [May 20, 1944], No.. 21211/45. Class 38 (i). [Also in Groups XI and XII] An electric furnace (see Group XII) is heated by graphite resistor bars 119 (see Group XI), the end bars being coupled to graphite extensions 130 by graphite sleeves 127. The extensions 130 are spaced from insulating sleeves 133 by asbestos packing 135. The terminals 137 are provided with passages 143, 144 for cooling- water, and the passage of air to the interior of the furnace is prevented by a sleeve 147 of helically-wound asbestos-packed metal strip which is welded to the metal framing of the terminal assembly. The two terminals are joined together by a bar 167 bolted at 177 to the insulating plates 146, the bar being rigidly supported on posts. To prevent the changing of the magnetic flux from heating the plates surrounding the terminals, the terminals are carried in non-magnetic panels 181, e.g. of silicon bronze, arranged as insets in the metal oven casing, and the magnetic path along the bar 167 is interrupted by an insertion of non- magnetic material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US678262XA | 1944-05-20 | 1944-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB678262A true GB678262A (en) | 1952-09-03 |
Family
ID=22078659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21211/45A Expired GB678262A (en) | 1944-05-20 | 1945-08-20 | Improvements in and relating to electric furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB678262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2001155A (en) * | 1977-07-08 | 1979-01-24 | Graenges Weda Ab | A molten metal holding vessel |
-
1945
- 1945-08-20 GB GB21211/45A patent/GB678262A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2001155A (en) * | 1977-07-08 | 1979-01-24 | Graenges Weda Ab | A molten metal holding vessel |
| GB2001155B (en) * | 1977-07-08 | 1982-02-03 | Graenges Weda Ab | Holding vessel |
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