GB533896A - Improvements in mercury circuit interrupters - Google Patents
Improvements in mercury circuit interruptersInfo
- Publication number
- GB533896A GB533896A GB32119/39A GB3211939A GB533896A GB 533896 A GB533896 A GB 533896A GB 32119/39 A GB32119/39 A GB 32119/39A GB 3211939 A GB3211939 A GB 3211939A GB 533896 A GB533896 A GB 533896A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury
- dec
- circuit interrupters
- electrode
- carbon
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052753 mercury Inorganic materials 0.000 title abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/30—Switches having at least one liquid contact with level of surface of contact liquid displaced by expansion or evaporation thereof
Landscapes
- Manufacture Of Switches (AREA)
Abstract
533,896. Mercury switches. GENERAL MOTORS CORPORATION. Dec. 13, 1939, No. 32115. Convention date, Dec. 15, 1938. [Class 38 (v)] A mercury interrupter such as that described in Specification 533,690 is manufactured by first completely encasing the carbon electrode 2 with glass or other insulating material 8 and then grinding off the lower surface or tip so as to expose a small area of the carbon. The second electrode 12 is then mounted alongside within the insulating case 16 and this is then evacuated, filled up to a given level with mercury and sealed off at 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3211939D GB533898A (en) | 1939-12-13 | 1939-12-13 | Improvements in and relating to cartons or containers and to methods of making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US245867A US2225970A (en) | 1938-12-15 | 1938-12-15 | Circuit interrupter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB533896A true GB533896A (en) | 1941-02-21 |
Family
ID=22928416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32119/39A Expired GB533896A (en) | 1938-12-15 | 1939-12-13 | Improvements in mercury circuit interrupters |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2225970A (en) |
| GB (1) | GB533896A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2790923A (en) * | 1953-03-17 | 1957-04-30 | Sylvania Electric Prod | Gaseous electric discharge tubes and electrodes |
-
1938
- 1938-12-15 US US245867A patent/US2225970A/en not_active Expired - Lifetime
-
1939
- 1939-12-13 GB GB32119/39A patent/GB533896A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2225970A (en) | 1940-12-24 |
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