GB155256A - Improvements in mercury switches for electrical apparatus - Google Patents
Improvements in mercury switches for electrical apparatusInfo
- Publication number
- GB155256A GB155256A GB34903/20A GB3490320A GB155256A GB 155256 A GB155256 A GB 155256A GB 34903/20 A GB34903/20 A GB 34903/20A GB 3490320 A GB3490320 A GB 3490320A GB 155256 A GB155256 A GB 155256A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury
- casing
- chamber
- channel
- contacts
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/02—Details
- H01H29/08—Means for introducing a predetermined time delay
- H01H29/10—Means for introducing a predetermined time delay by constricting the flow of the contact liquid
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Tumbler Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
155,256. Kaisser, K. Dec. 15, 1919, [Convention date]. Mercury switches.-A multiple contact mercury switch, suitable for motor cars &c., consists of a casing a formed with a mercury chamber e and provided with a contact channel d, which extends centrally from the end of the casing where the contacts c are located to a point in alinement with the pivoting shackle b. In switching on, the mercury flows from the chamber e to the channel d through the duct g, which is provided with a throttling screw k, so that the mercury engages the successive contacts at uniform intervals, which can be adjusted by the screw k. In switching off, the mercury returns rapidly through the channel d to the chamber e. Current is supplied to the contacts c from the main contact m, through the carbon block l, the casing a, and the mercury.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE335668T | 1919-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB155256A true GB155256A (en) | 1921-05-12 |
Family
ID=38137395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34903/20A Expired GB155256A (en) | 1919-12-15 | 1920-12-10 | Improvements in mercury switches for electrical apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1426875A (en) |
| DE (1) | DE335668C (en) |
| FR (1) | FR533247A (en) |
| GB (1) | GB155256A (en) |
| NL (1) | NL6630C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE740686C (en) * | 1941-01-22 | 1944-06-21 | Schmidt Max | Knee-shaped tiltable mercury switch tube |
| US3325607A (en) * | 1960-07-08 | 1967-06-13 | Elco Corp | Mercury time delay switch |
-
1919
- 1919-12-15 DE DE1919335668D patent/DE335668C/en not_active Expired
-
1920
- 1920-05-03 NL NL6630D patent/NL6630C/xx active
- 1920-11-29 US US42712120 patent/US1426875A/en not_active Expired - Lifetime
- 1920-12-10 GB GB34903/20A patent/GB155256A/en not_active Expired
- 1920-12-13 FR FR533247D patent/FR533247A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE335668C (en) | 1921-04-12 |
| US1426875A (en) | 1922-08-22 |
| FR533247A (en) | 1922-02-25 |
| NL6630C (en) | 1922-02-15 |
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