GB484762A - Improvements in electrical regulating devices comprising resistors of high resistance-temperature coefficient - Google Patents
Improvements in electrical regulating devices comprising resistors of high resistance-temperature coefficientInfo
- Publication number
- GB484762A GB484762A GB19396/37A GB1939637A GB484762A GB 484762 A GB484762 A GB 484762A GB 19396/37 A GB19396/37 A GB 19396/37A GB 1939637 A GB1939637 A GB 1939637A GB 484762 A GB484762 A GB 484762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistor
- resistors
- gas
- tube
- millimetres
- 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
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 abstract 2
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 abstract 2
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 abstract 2
- 229910001006 Constantan Inorganic materials 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
Abstract
484,762. Variable resistors. GENERAL ELECTRIC CO., Ltd. July 13, 1937, No. 19396. Convention date, Oct. 31, 1936. [Class 37] [Also in Group XL] An electrical regulating device of the kind comprising a resistor having a high temperature-resistance coefficient and heated by a second resistor, has the first resistor in the form of a hollow self-supporting cylindrical body surrounding the heating resistor, the two resistors being located in a gas-filled space so that convection currents outside the first resistor are unhindered while those between the resistors are hindered. In order to hinder the convection currents, caps may be provided, or the gap between the resistors is made not more than three millimetres and preferably one millimetre wide. The first resistor may be of uranium dioxide or magnesium titanate, and the heater of tungsten or molybdenum. The gas-filling may be hydrogen, and at a pressure between 10 and 300 millimetres. Nitrogen or argon can be employed as a gas-filling, and the first resistor may be formed by squirting a paste containing magnesium and titanium oxides. A tubular member so formed is then heated to 1100 C. for one hour in air and thereafter to 1400-1500 C. in damp hydrogen. The heating resistor may be of constantan, or a known semi-conductor. A construction employing a tube 1 of uranium dioxide and a heater 2 tensioned by a spring 3 is shown. The device can be employed to prevent the current through a discharge tube varying with supply voltage, or with " hardening " of the tube ; for volume control in wireless circuits and for control of electric incandescent lamps. The resistors can be coupled to cause regular fluctuations in a lamp circuit for signalling purposes. Specification 417,665 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1936P0074068 DE688342C (en) | 1936-10-31 | 1936-10-31 | Resistance arrangement housed in a gas-filled vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB484762A true GB484762A (en) | 1938-05-10 |
Family
ID=7392462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19396/37A Expired GB484762A (en) | 1936-10-31 | 1937-07-13 | Improvements in electrical regulating devices comprising resistors of high resistance-temperature coefficient |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2144888A (en) |
| DE (1) | DE688342C (en) |
| GB (1) | GB484762A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764540C (en) * | 1937-08-30 | 1952-12-22 | Int Standard Electric Corp | Method of manufacturing a resistor from silver sulfide |
| US2468793A (en) * | 1943-12-06 | 1949-05-03 | Sperry Corp | High-frequency resistor |
| US2441165A (en) * | 1945-09-25 | 1948-05-11 | Paul J Ovrebo | Means for measuring the power output of radio transmitters |
-
1936
- 1936-10-31 DE DE1936P0074068 patent/DE688342C/en not_active Expired
-
1937
- 1937-07-13 GB GB19396/37A patent/GB484762A/en not_active Expired
- 1937-10-26 US US171110A patent/US2144888A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE688342C (en) | 1940-02-19 |
| US2144888A (en) | 1939-01-24 |
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