GB537195A - Improvements in or relating to circuit breakers and the like electro-magnetically operated switches - Google Patents
Improvements in or relating to circuit breakers and the like electro-magnetically operated switchesInfo
- Publication number
- GB537195A GB537195A GB361340A GB361340A GB537195A GB 537195 A GB537195 A GB 537195A GB 361340 A GB361340 A GB 361340A GB 361340 A GB361340 A GB 361340A GB 537195 A GB537195 A GB 537195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- mercury
- contact
- electro
- relating
- 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 abstract 4
- 229910052753 mercury Inorganic materials 0.000 abstract 4
- 230000035939 shock Effects 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1054—Means for avoiding unauthorised release
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Keying Circuit Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
537,195. Electromagnetic switches; mercury switches. WHIPP & BOURNE Ltd., and WHIPP, F. Feb. 27, 1940, No. 3613. [Class 38 (v)] The pressure between the contacts of an electromagnetic switch is increased, when the switch is subjected to a sudden shock, by the operation of an auxiliary switch also subject to the shock. The auxiliary switch may be a mercury switch, Fig. 3 the mercury in which is adapted to be displaced so as to bridge the gap between a metal casing 16 and a contact 18. The channel between the casing 16 and contact 18 is small so that mercury will flow through it slowly and contact will be maintained for a time. The operation of the auxiliary switch preferably serves to bridge at 15 an economy resistance such as 14 Fig. 2, which is in series with the coil 9 holding the main contacts 11, 12 of the electromagnetic switch closed, thus increasing the holding force. Specifications 214,667, [Class 38 (v)], 521,073, 521,074 and 525,510 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB361340A GB537195A (en) | 1940-02-27 | 1940-02-27 | Improvements in or relating to circuit breakers and the like electro-magnetically operated switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB361340A GB537195A (en) | 1940-02-27 | 1940-02-27 | Improvements in or relating to circuit breakers and the like electro-magnetically operated switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB537195A true GB537195A (en) | 1941-06-12 |
Family
ID=9761623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB361340A Expired GB537195A (en) | 1940-02-27 | 1940-02-27 | Improvements in or relating to circuit breakers and the like electro-magnetically operated switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB537195A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1173754B (en) * | 1959-07-18 | 1964-07-09 | Continental Elektro Ind Ag | Arrangement to prevent the transfer of movements generated by impact from shock-sensitive parts to release parts |
| EP0121963A1 (en) * | 1983-03-10 | 1984-10-17 | SACE S.p.A. Costruzioni Elettromeccaniche | Automatic locking device for linkages subjected to undesirable mechanical stresses, applicable in particular to electrical switches |
-
1940
- 1940-02-27 GB GB361340A patent/GB537195A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1173754B (en) * | 1959-07-18 | 1964-07-09 | Continental Elektro Ind Ag | Arrangement to prevent the transfer of movements generated by impact from shock-sensitive parts to release parts |
| EP0121963A1 (en) * | 1983-03-10 | 1984-10-17 | SACE S.p.A. Costruzioni Elettromeccaniche | Automatic locking device for linkages subjected to undesirable mechanical stresses, applicable in particular to electrical switches |
| US4644181A (en) * | 1983-03-10 | 1987-02-17 | Sace S.P.A. Costruzioni Elettromeccaniche | Automatic locking device for linkages subjected to undesirable mechanical stresses, applicable in particular to electrical switches |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB537195A (en) | Improvements in or relating to circuit breakers and the like electro-magnetically operated switches | |
| GB537364A (en) | Improvements in and relating to electric circuit breakers of the liquid blast type | |
| GB546135A (en) | Improvements in or relating to snap-action electric switches | |
| GB787072A (en) | Improvements relating to electro-magnetic switches | |
| GB578134A (en) | Improvements in or relating to electro-magnetic switches | |
| GB866368A (en) | Air blast circuit breaker with auxiliary interrupter for parallel resistors | |
| GB545982A (en) | Improvements in circuits for operating electrical indicating devices | |
| GB837906A (en) | Automatic electric cut-out | |
| GB553477A (en) | Improvements in and relating to gas blast electric circuit breakers | |
| GB494395A (en) | Improvements in and relating to current limiting devices | |
| GB522986A (en) | Improvements in electrical relays | |
| GB548472A (en) | Improvements relating to electric circuit breakers having magnetic blow-outs | |
| GB537356A (en) | Improvements relating to contacts for electric circuit breakers | |
| GB551085A (en) | Improvements in or relating to electric switches operated by impact or shock | |
| GB551966A (en) | Improvements in air-break electric circuit breakers | |
| ES7076U (en) | Switch and electric current switch (Machine-translation by Google Translate, not legally binding) | |
| GB492802A (en) | Improvements relating to mercury and other sealed container switches | |
| GB290620A (en) | ||
| GB549393A (en) | Improved remote indicating and signalling device | |
| GB474618A (en) | Improvements in and relating to signalling systems | |
| GB568136A (en) | Improvements in electro-magnetic switches | |
| GB517719A (en) | Improvements in thermally actuated electrical cut-outs | |
| GB477113A (en) | Improvements in or relating to make and break switches having arc-extinguishing arrangements | |
| GB562275A (en) | Electro-magnetic switches | |
| GB546435A (en) | Improvements connected with electrical switch-gear and contact arrangements therefor |