GB410260A - Improvements relating to electrical heating apparatus - Google Patents
Improvements relating to electrical heating apparatusInfo
- Publication number
- GB410260A GB410260A GB965/33A GB96533A GB410260A GB 410260 A GB410260 A GB 410260A GB 965/33 A GB965/33 A GB 965/33A GB 96533 A GB96533 A GB 96533A GB 410260 A GB410260 A GB 410260A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- members
- moulded
- heating
- alkali
- 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
Landscapes
- Resistance Heating (AREA)
Abstract
In an electric heating-apparatus the heating members are wholly or partly insulated by moulded members made from a mass consisting of natural or artificial magnesium silicate burned to the density of porcelain by means of a flux not containing magnesium or alkali. The insulating members contain 20 per cent or more of magnesium oxide, and may be provided only at the points of maximum temperature, other insulating material such as chamotte or stoneware-like masses, mica &c. being provided at points of lower temperature. In an example insulating members are moulded from a mass containing 80 per cent of steatite or talc, 10 per cent of plastic clay and 10 per cent of kaolin, these materials being as free from alkali as possible. The moulded members may be in the form of heads or tubes which are drawn over the heating member, or they may be formed with recesses or projections to take the heating member. Specifications 21987/11, [Class 70], and 142,512, [Class 22], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE410260X | 1932-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB410260A true GB410260A (en) | 1934-05-17 |
Family
ID=6423930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB965/33A Expired GB410260A (en) | 1932-01-13 | 1933-01-11 | Improvements relating to electrical heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB410260A (en) |
-
1933
- 1933-01-11 GB GB965/33A patent/GB410260A/en not_active Expired
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