GB552185A - Improvements in or relating to electric circuit interrupters of the plug-in type - Google Patents
Improvements in or relating to electric circuit interrupters of the plug-in typeInfo
- Publication number
- GB552185A GB552185A GB15513/41A GB1551341A GB552185A GB 552185 A GB552185 A GB 552185A GB 15513/41 A GB15513/41 A GB 15513/41A GB 1551341 A GB1551341 A GB 1551341A GB 552185 A GB552185 A GB 552185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- contacts
- mercury
- electromagnet
- series
- 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
- H01H29/04—Contacts; Containers for liquid contacts
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Breakers (AREA)
Abstract
552,185. Couplings combined with switches. CIANCHI, A. Dec. 2, 1941, No. 15513. [Class 38 (i)] [Also in Group XXXVII] A mercury or other enclosed switch D is mounted on a cover C carrying contacts E which are plugged into contacts B on a relatively-fixed casing A, and an electromagnet F1 which operates the switch D is mounted on an inner member G normally housed within but detachable from the casing A. The magnet poles F embrace the . mercury container and the magnet when energized displaces the mercury so that it bridges contacts connected to the contacts E. A fuse H<SP>2</SP> may be in series with the electromagnet F<SP>1</SP> and in a modification, Fig. 13 (not shown) a magazine fuse is in series with the mercury switch. In another modification, Fig. 12 (not shown) there are two electromagnets, one for closing the switch, which is then held latched, and the other for releasing the latch and so opening the switch. These magnets may also operate a sliding bolt which prevents the cover C being withdrawn when the switch is open. The contacts E are each formed from a U-shaped strip, the ends of which engage between a block B, Fig. 3, and spring fingers B<SP>1</SP>. In Fig. 9, the U-shaped contact strip J rests on knife edges J<SP>3</SP> and after insertion, rotation of a screw J<SP>1</SP> pulls down the centre of the U so that the side arms approach each other and grip the fixed block. Specification 501,815 is referred to. The Provisional Specification refers also to Specification 547,327, [Group XXXVII].
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15513/41A GB552185A (en) | 1941-12-02 | 1941-12-02 | Improvements in or relating to electric circuit interrupters of the plug-in type |
US471161A US2416569A (en) | 1941-12-02 | 1943-01-02 | Electric circuit interrupter of the plug-in type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15513/41A GB552185A (en) | 1941-12-02 | 1941-12-02 | Improvements in or relating to electric circuit interrupters of the plug-in type |
Publications (1)
Publication Number | Publication Date |
---|---|
GB552185A true GB552185A (en) | 1943-03-25 |
Family
ID=10060452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15513/41A Expired GB552185A (en) | 1941-12-02 | 1941-12-02 | Improvements in or relating to electric circuit interrupters of the plug-in type |
Country Status (2)
Country | Link |
---|---|
US (1) | US2416569A (en) |
GB (1) | GB552185A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556716A (en) * | 1947-04-25 | 1951-06-12 | Bell Telephone Labor Inc | Relay |
US2487970A (en) * | 1947-08-18 | 1949-11-15 | Wheeler Insulated Wire Company | Fluorescent lamp switch |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1628802A (en) * | 1927-05-17 | perrem | ||
USRE22266E (en) * | 1943-02-16 | Circuit interrupting and protecting | ||
DE521701C (en) * | 1931-03-25 | Siemens Schuckertwerke Akt Ges | Electromagnetic switch for small electrical devices with switch contacts housed in a vacuum or in inert gas | |
US1130485A (en) * | 1913-05-03 | 1915-03-02 | Standard Underground Cable Company | Electric fuse. |
US1461038A (en) * | 1918-07-02 | 1923-07-10 | Cooper Hewitt Electric Co | Starter for electrical translating devices |
US1656800A (en) * | 1922-10-06 | 1928-01-17 | Wilfred J Turenne | Electric cut-out and fuse |
US2024216A (en) * | 1931-04-30 | 1935-12-17 | Fusoid Electric Co Inc | Circuit breaker |
US1947503A (en) * | 1932-01-20 | 1934-02-20 | Walter C Shunk | Means for protecting trailing cables |
US2298053A (en) * | 1940-01-25 | 1942-10-06 | William M Pearson | Automatic circuit breaker |
-
1941
- 1941-12-02 GB GB15513/41A patent/GB552185A/en not_active Expired
-
1943
- 1943-01-02 US US471161A patent/US2416569A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2416569A (en) | 1947-02-25 |
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