GB353753A - - Google Patents
Info
- Publication number
- GB353753A GB353753A GB2719730A GB2719730A GB353753A GB 353753 A GB353753 A GB 353753A GB 2719730 A GB2719730 A GB 2719730A GB 2719730 A GB2719730 A GB 2719730A GB 353753 A GB353753 A GB 353753A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury
- contacts
- strips
- strip
- insulating material
- 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
- H01H29/16—Switches having at least one liquid contact operated by dipping soil contact into stationary contact liquid
Landscapes
- Slide Switches (AREA)
- Adjustable Resistors (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
353,753. Mercury switches ; interrupters. BOCK, M. M., 61, Alfredstrasse, Hamburg, Germany. Sept. 11, 1930, No. 27197. Convention date, Feb. 8. [Class 38 (v).] A multi - circuit switch has fixed contacts consisting of a number of strips of metal a1 .. a28 of graduated lengths embedded in a strip b of insulating material, and connected to the individual circuits. The movable contact comprises a bath d of mercury caused to reciprocate between guides e1, e2 by means of a rod h and a motor-driven cam k to close circuits successively. An interrupter arm l<1> controlling contacts o, p, in series with the mercury bath and associated contacts, is operated by the cam k which rotates in an anticlockwise direction to break the circuit suddenly at o, p before the contacts al .. a28 are removed from the mercury. In a modification, the fixed contact-member comprises a number of strips of graduated length embedded edge-wise throughout part of their width in a strip of insulating material, and the reciprocating-member consists of a slotted spring plate supported by a straight bar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE542792T | 1930-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB353753A true GB353753A (en) | 1931-07-30 |
Family
ID=34258077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2719730A Expired GB353753A (en) | 1930-02-09 | 1930-09-11 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE542792C (en) |
| FR (1) | FR701999A (en) |
| GB (1) | GB353753A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744761C (en) * | 1940-02-17 | 1944-01-24 | Siemens Ag | Changeover switch for the currentless initiation of switching processes, in particular driving and braking processes in electric vehicles |
| DE19755003A1 (en) * | 1997-12-11 | 1999-06-17 | Nils Buer | Filling level measuring unit for liquid levels |
-
1930
- 1930-02-09 DE DE1930542792D patent/DE542792C/en not_active Expired
- 1930-09-11 GB GB2719730A patent/GB353753A/en not_active Expired
- 1930-09-15 FR FR701999D patent/FR701999A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR701999A (en) | 1931-03-26 |
| DE542792C (en) | 1932-01-28 |
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