GB628567A - Improvements in or relating to resistances having a negative temperature coefficient - Google Patents
Improvements in or relating to resistances having a negative temperature coefficientInfo
- Publication number
- GB628567A GB628567A GB22323/46A GB2232346A GB628567A GB 628567 A GB628567 A GB 628567A GB 22323/46 A GB22323/46 A GB 22323/46A GB 2232346 A GB2232346 A GB 2232346A GB 628567 A GB628567 A GB 628567A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- resistances
- ribs
- resistance
- resistive body
- 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
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Details Of Resistors (AREA)
Abstract
628,567. Casings, enclosures and mountings for resistances ; non-metal resistances temperature variable resistances. PHILIPS LAMPS, Ltd. July 26, 1946, No. 22323. Convention date, July 30, 1945. [Class 37] A resistor which has a negative temperature coefficient and comprises a resistive body of substantially cylindrical shape housed in a tube of insulating material and connected by filiform conductors to terminals at the ends of the tube is characterized in that the resistive body is supported inside the tube by spacers which have a small area of contact either with the resistive body or with the inner wall of the tube. As shown a ceramic tube 1 is formed with three ribs which embrace a rod-shaped resistance element 5 supported axially by helical springs 9 bearing against end caps 3. The wire of the helical springs 9 is of the nature of a thread and the ribs 7 blade-shaped, Fig. 2. The ribs 7 may alternatively be formed on the rod resistance 5. In a modification, Figs. 3 and 4 (not shown), the ribs 7 are omitted and the resistance 5 is supported instead by triangular plates which make a three-point contact with the inner wall of the tube 1. The resistance 5 may be a mixture of manganese oxide and titanium oxide. The invention is directed particularly to radio resistances.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL628567X | 1945-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB628567A true GB628567A (en) | 1949-08-31 |
Family
ID=19788657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22323/46A Expired GB628567A (en) | 1945-07-30 | 1946-07-26 | Improvements in or relating to resistances having a negative temperature coefficient |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB628567A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1053077B (en) * | 1955-07-20 | 1959-03-19 | Siemens Ag | Electrical resistor, capacitor or similar component housed in an insulating housing |
| FR2408907A1 (en) * | 1977-11-15 | 1979-06-08 | Texas Instruments Inc | THERMAL RELAY, IN PARTICULAR FOR STARTING A SINGLE-PHASE ASYNCHRONOUS MOTOR |
| US4536817A (en) * | 1983-03-10 | 1985-08-20 | Texas Instruments Incorporated | Recessed lighting fixture and an insulation detecting protector device therefor |
-
1946
- 1946-07-26 GB GB22323/46A patent/GB628567A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1053077B (en) * | 1955-07-20 | 1959-03-19 | Siemens Ag | Electrical resistor, capacitor or similar component housed in an insulating housing |
| FR2408907A1 (en) * | 1977-11-15 | 1979-06-08 | Texas Instruments Inc | THERMAL RELAY, IN PARTICULAR FOR STARTING A SINGLE-PHASE ASYNCHRONOUS MOTOR |
| US4536817A (en) * | 1983-03-10 | 1985-08-20 | Texas Instruments Incorporated | Recessed lighting fixture and an insulation detecting protector device therefor |
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