GB501528A - Improvements in metallic compound resistors - Google Patents
Improvements in metallic compound resistorsInfo
- Publication number
- GB501528A GB501528A GB2367837A GB2367837A GB501528A GB 501528 A GB501528 A GB 501528A GB 2367837 A GB2367837 A GB 2367837A GB 2367837 A GB2367837 A GB 2367837A GB 501528 A GB501528 A GB 501528A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- silver
- compound
- resistances
- sealed
- 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
- 229910000765 intermetallic Inorganic materials 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 239000011261 inert gas Substances 0.000 abstract 2
- 241001226615 Asphodelus albus Species 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910001041 brightray Inorganic materials 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910001120 nichrome Inorganic materials 0.000 abstract 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- PGWMQVQLSMAHHO-UHFFFAOYSA-N sulfanylidenesilver Chemical compound [Ag]=S PGWMQVQLSMAHHO-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/10—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances sulfides
Landscapes
- Details Of Resistors (AREA)
Abstract
501,528. Temperature variation resistances. STANDARD TELEPHONES & CABLES, Ltd., WOLFSON, H., and HARRIS, L. J. Aug. 30, 1937, No. 23678. (Class 37] A resistance element consisting of a metallic compound having a negative temperature coefficient, is provided with metal contacts which are secured initially to the metal body which is subsequently treated to form the compound, the contacts being formed of a metal or alloy unaffected by the treatment, whereby a good metal to compound contact is obtained. For example, silver sulphide resistances are produced by binding contact wires 3 of tungsten or a nickel-chromium alloy such as " Brightray " or " Nichrome (Registered Trade Marks), tightly around grooves in a silver rod 2, or the contact wires may be secured in radial or axial bores in the rod, the assembly then being exposed to sulphur vapour at 300 to 400‹ C. for 15 minutes or longer to convert the silver to the sulphide, after which the element is stabilized by heating to 200-300‹ C. in nitrogen or other inert gas. The element may be sealed into a hard glass tube, and in use, heated in known manner by means external to the tube, this assembly being sealed into an evacuated bulb or one filletl with an inert gas at low pressure. Specification 472,144 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2367837A GB501528A (en) | 1937-08-30 | 1937-08-30 | Improvements in metallic compound resistors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2367837A GB501528A (en) | 1937-08-30 | 1937-08-30 | Improvements in metallic compound resistors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB501528A true GB501528A (en) | 1939-02-28 |
Family
ID=10199494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2367837A Expired GB501528A (en) | 1937-08-30 | 1937-08-30 | Improvements in metallic compound resistors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB501528A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965703C (en) * | 1950-03-16 | 1957-06-13 | Steatit Magnesia Ag | Electrical resistance |
-
1937
- 1937-08-30 GB GB2367837A patent/GB501528A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965703C (en) * | 1950-03-16 | 1957-06-13 | Steatit Magnesia Ag | Electrical resistance |
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