GB921233A - Improvements in or relating to thermal radiation sources - Google Patents
Improvements in or relating to thermal radiation sourcesInfo
- Publication number
- GB921233A GB921233A GB1290460A GB1290460A GB921233A GB 921233 A GB921233 A GB 921233A GB 1290460 A GB1290460 A GB 1290460A GB 1290460 A GB1290460 A GB 1290460A GB 921233 A GB921233 A GB 921233A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furnace
- screen
- gas
- thermal radiation
- wires
- 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
- 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
Abstract
921,233. Electric heating resistances. GENERAL ELECTRIC CO. Ltd. July 7, 1961 [April 11, 1960], No. 12904/60. Class 39 (3). A source of thermal radiation comprises an open-fronted vessel of refractory material containing a radiator element and provided with a gas inlet and with a screen of closely spaced fine refractory wires extending across the front of the vessel, the screen being such as to provide a barrier against the ingress of ambient air or gas whilst permitting thermal radiation to pass through it. As shown, one embodiment is a furnace having a casing 11 provided with a screen of fine iridium-platinum alloy wires 16 mounted in zig-zag fashion on tungsten rods 14, 15 across its open front. The rods 14, 15 are supported by blocks 13 of insulating material carried by a frame 12 of refractory material. The wires 16 may be electrically heated, terminals 17, 18 being provided for that purpose. The frame 12 is attached to the casing 11 by means of a single wing-nut 19 and is thus removable to give access to the interior of the furnace. Inert gas is supplied to the furnace through an inlet (not shown) to reduce oxidation and corrosion of electric heating elements (Fig. 2, not shown) within the furnace, the flow of gas from the furnace being restricted by the screen. A second embodiment and the heating elements included in both embodiments, are the same as those described in Specification 921,234.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1290460A GB921233A (en) | 1960-04-11 | 1960-04-11 | Improvements in or relating to thermal radiation sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1290460A GB921233A (en) | 1960-04-11 | 1960-04-11 | Improvements in or relating to thermal radiation sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB921233A true GB921233A (en) | 1963-03-20 |
Family
ID=10013270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1290460A Expired GB921233A (en) | 1960-04-11 | 1960-04-11 | Improvements in or relating to thermal radiation sources |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB921233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545542A1 (en) * | 1991-11-04 | 1993-06-09 | De Beers Industrial Diamond Division (Proprietary) Limited | Apparatus for depositing a material on a substrate by chemical vapour deposition |
-
1960
- 1960-04-11 GB GB1290460A patent/GB921233A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545542A1 (en) * | 1991-11-04 | 1993-06-09 | De Beers Industrial Diamond Division (Proprietary) Limited | Apparatus for depositing a material on a substrate by chemical vapour deposition |
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