GB584519A - Improvements relating to the manufacture of alternating current rectifiers of the selenium type - Google Patents
Improvements relating to the manufacture of alternating current rectifiers of the selenium typeInfo
- Publication number
- GB584519A GB584519A GB14088/44A GB1408844A GB584519A GB 584519 A GB584519 A GB 584519A GB 14088/44 A GB14088/44 A GB 14088/44A GB 1408844 A GB1408844 A GB 1408844A GB 584519 A GB584519 A GB 584519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- manufacture
- alternating current
- improvements relating
- lithium hydroxide
- current rectifiers
- 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
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052711 selenium Inorganic materials 0.000 title abstract 2
- 239000011669 selenium Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 abstract 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
- H10D48/01—Manufacture or treatment
- H10D48/04—Manufacture or treatment of devices having bodies comprising selenium or tellurium in uncombined form
- H10D48/043—Preliminary treatment of the selenium or tellurium, its application to foundation plates or the subsequent treatment of the combination
- H10D48/045—Treatment of the surface of the selenium or tellurium layer after having been made conductive
Landscapes
- Thermistors And Varistors (AREA)
Abstract
584,519. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., THOMPSON, L. E., and GARROD, K. A. July 24, 1944, No. 14088, [Class 37] To improve the reverse resistance and critical voltage values of a selenium coated rectifier element the element is immersed in a bath containing lithium hydroxide of which the concentration at'the element surface is greater than 100 gms. per litre, which is normal for sodium hydroxide baths. The solution may be saturated or dilute in which latter case the element is connected to an electric supply as the negative pole of an electrolytic cell so forming a concentrated layer of lithium hydroxide solution on the element surface. The preferred counter-electrode used contains or is composed of lithium. Specifications 529,791 and 532,961 are referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14088/44A GB584519A (en) | 1944-07-24 | 1944-07-24 | Improvements relating to the manufacture of alternating current rectifiers of the selenium type |
| FR932850D FR932850A (en) | 1944-07-24 | 1946-08-27 | Method of manufacturing alternating current rectifiers of the selenium type |
| DEW3614A DE842229C (en) | 1944-07-24 | 1950-09-16 | Method of manufacturing selenium AC rectifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14088/44A GB584519A (en) | 1944-07-24 | 1944-07-24 | Improvements relating to the manufacture of alternating current rectifiers of the selenium type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB584519A true GB584519A (en) | 1947-01-16 |
Family
ID=10034768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14088/44A Expired GB584519A (en) | 1944-07-24 | 1944-07-24 | Improvements relating to the manufacture of alternating current rectifiers of the selenium type |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE842229C (en) |
| FR (1) | FR932850A (en) |
| GB (1) | GB584519A (en) |
-
1944
- 1944-07-24 GB GB14088/44A patent/GB584519A/en not_active Expired
-
1946
- 1946-08-27 FR FR932850D patent/FR932850A/en not_active Expired
-
1950
- 1950-09-16 DE DEW3614A patent/DE842229C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR932850A (en) | 1948-04-02 |
| DE842229C (en) | 1952-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB647799A (en) | Electroplating method employing pulsating current | |
| GB532961A (en) | Improvements relating to the manufacture of alternating electric current dry rectifiers | |
| GB556152A (en) | Improvements relating to alternating electric current rectifiers of the selenium type | |
| GB584519A (en) | Improvements relating to the manufacture of alternating current rectifiers of the selenium type | |
| GB559164A (en) | Improvements in or relating to the electro-deposition of antimony | |
| GB643165A (en) | Improvements in and relating to methods of forming selenium rectifiers | |
| ES371568A1 (en) | Method of producing colored coatings of aluminum | |
| GB577616A (en) | Improvements relating to alternating electric current rectifiers of the dry plate type | |
| GB565323A (en) | Improvements relating to alternating electric current rectifiers of the selenium type | |
| GB560869A (en) | Improvements relating to alternating electric current rectifiers of the selenium type | |
| GB464268A (en) | Improvements in electrode systems with unsymmetrical conductivity such as dry rectifier, or light-sensitive, cells | |
| GB602056A (en) | Improvements in and relating to sulfuric anodizing | |
| GB577585A (en) | Improvements relating to alternating electric current rectifiers of the selenium type | |
| GB651077A (en) | Electrolytic polishing of stainless steel | |
| GB565321A (en) | Improvements in the manufacture of selenium electric rectifiers | |
| GB1040186A (en) | Improvements in or relating to a power supply for electro plating | |
| SU62270A1 (en) | Electrolytic galvanizing method | |
| GB561101A (en) | Improvements relating to alternating electric current rectifiers of the selenium type | |
| GB554892A (en) | Improvements relating to the manufacture of alternating current rectifiers of the selenium type | |
| GB834714A (en) | Improvements in or relating to anodising aluminium and its alloys | |
| JPS56158424A (en) | Electrolytic copper plating for compound semiconductor | |
| GB565320A (en) | Improvements in the manufacture of selenium electric rectifiers | |
| GB543833A (en) | Improvements in and relating to the electrodeposition of nickel | |
| GB564980A (en) | Methods of improving rectification ratio in selenium elements | |
| SU548115A1 (en) | SOLID ELECTROLYTE FOR CHEMICAL CURRENT SOURCE |