GB683146A - Improvements in or relating to electric resistance elements - Google Patents
Improvements in or relating to electric resistance elementsInfo
- Publication number
- GB683146A GB683146A GB5120/50A GB512050A GB683146A GB 683146 A GB683146 A GB 683146A GB 5120/50 A GB5120/50 A GB 5120/50A GB 512050 A GB512050 A GB 512050A GB 683146 A GB683146 A GB 683146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series
- elements
- resistance
- parallel
- parallel groups
- 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
- H05B3/0019—Circuit arrangements
Landscapes
- Resistance Heating (AREA)
Abstract
683,146. Electric resistance furnaces. SIMS, C. W., ELLIS, C. C., and WILDBARFIELD ELECTRIC FURNACES, Ltd. Feb. 9, 1951 [Feb. 28, 1950], No. 5120/50 Class 39(iii) A furnace with heating elements a of silicon carbide or similar non-metallic material the resistance of which increases rapidly with age has a switch for periodically connecting the elements selectively in a succession of series parallel arrangements, whereby the total resistance of the furnace heater remains substantially constant as the resistance of each element increases with use. Where twelve silicon carbide resistances are used, they are connected successively in two parallel groups of six in series, four parallel groups of three in series, three parallel groups of four in series and six parallel groups of two in series. A ballast resistor 4 is connected in series with the heater network, and at each stage the junctions between the elements which are nominally at the same potential are joined by equalizing connections. The elements a may be connected as shown to a rotary switch B, or they may be connected to a terminal board to which a series of link boards is selectively applied to connect the elements in the desired series-parallel arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5120/50A GB683146A (en) | 1950-02-28 | 1950-02-28 | Improvements in or relating to electric resistance elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5120/50A GB683146A (en) | 1950-02-28 | 1950-02-28 | Improvements in or relating to electric resistance elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB683146A true GB683146A (en) | 1952-11-26 |
Family
ID=9790083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5120/50A Expired GB683146A (en) | 1950-02-28 | 1950-02-28 | Improvements in or relating to electric resistance elements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB683146A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011484A1 (en) * | 2020-07-15 | 2022-01-20 | Ecofuels Spa | Method for producing liquid fuel from plastic or polymer waste |
-
1950
- 1950-02-28 GB GB5120/50A patent/GB683146A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011484A1 (en) * | 2020-07-15 | 2022-01-20 | Ecofuels Spa | Method for producing liquid fuel from plastic or polymer waste |
| US12146108B2 (en) | 2020-07-15 | 2024-11-19 | Ecofuels Spa | Method for producing liquid fuel from plastic or polymer waste |
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