GB743012A - Improvements in and relating to electromagnetic relays - Google Patents
Improvements in and relating to electromagnetic relaysInfo
- Publication number
- GB743012A GB743012A GB10421/53A GB1042153A GB743012A GB 743012 A GB743012 A GB 743012A GB 10421/53 A GB10421/53 A GB 10421/53A GB 1042153 A GB1042153 A GB 1042153A GB 743012 A GB743012 A GB 743012A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- armature
- spring
- vibration
- base plate
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
743,012. Electromagnetic switches. GENERAL RAILWAY SIGNAL CO. April 16. 1953 [May 27, 1952], No. 10421/53. Class 38(5) An electromagnetic relay for carrying relatively heavy currents in railway signalling systems, where contact bounce or vibration is undesirable, comprises a pair of spring contact members 27, 28 biased into engagement, but movable out of engagement by a contact operator 41 carried by armature 7 and so arranged that when the contacts are closed the armature is disconnected from them. The contact member 27, 28 of which there may be several pairs, are mounted on brackets 25 carried by an insulating base plate 5. This base plate also bears two magnetic cores with polepieces 6, which cores carry energizing windings 8, the armature 7 being pivoted on trunnions 12 mounted on bracket support 9 and so spaced in relationship to the pole pieces that it moves up when the coils are energized to open the contacts by means of operator 41 and downwards under gravity and pressure of spring 20 to allow the contact to close, upon de-energization. Pins 14 determine the minimum airgap, while downward armature movement is limited by set screw 18 in a back stop member 15 carried by the base plate 5. For reducing contact bounce and vibration the contact members may have similar weights but different periods of vibration by the normal pressure between the arcuate contact 38 on member 27 and the contact button 36, which may be of silver, on member 28 is a little less than the pressure as measured at contact 36 between member 28 and limit arm 29: the centres of percussion and of gravity of member 27 are at the centre of contact 38. A modification is described in which the movable spring contact members of a multiple assembly are moved simultaneously by a pusher which engages them with lost motion to allow for the disconnection in the closed contact position, the pusher being moved by a spring-loaded armature. Figs. 3. 4 (not shown). Specification 318,916, [Class 38(v)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US290241A US2682586A (en) | 1952-05-27 | 1952-05-27 | Electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB743012A true GB743012A (en) | 1956-01-04 |
Family
ID=23115113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10421/53A Expired GB743012A (en) | 1952-05-27 | 1953-04-16 | Improvements in and relating to electromagnetic relays |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2682586A (en) |
| FR (1) | FR1083565A (en) |
| GB (1) | GB743012A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE545053A (en) * | 1955-02-18 | Bernier & Cie S A R L Ets | ||
| DE1262454B (en) * | 1964-08-28 | 1968-03-07 | Siemens Ag | Bounce-free contact arrangement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1162571A (en) * | 1913-12-26 | 1915-11-30 | Westinghouse Electric & Mfg Co | Contact device. |
| DE341348C (en) * | 1920-06-01 | 1921-09-29 | Mix & Genest Ag | Self-breaker for electromagnetically driven step switches |
| US1531347A (en) * | 1922-04-25 | 1925-03-31 | American Telephone & Telegraph | Relay |
| US2265297A (en) * | 1940-05-08 | 1941-12-09 | Westinghouse Electric & Mfg Co | Contact device |
| US2362855A (en) * | 1941-11-22 | 1944-11-14 | Gen Electric | Electric switch |
| GB391936A (en) * | 1942-01-21 | 1933-05-11 | Robertson Co H H | Improvements relating to protected metal articles |
-
1952
- 1952-05-27 US US290241A patent/US2682586A/en not_active Expired - Lifetime
-
1953
- 1953-04-16 GB GB10421/53A patent/GB743012A/en not_active Expired
- 1953-05-27 FR FR1083565D patent/FR1083565A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2682586A (en) | 1954-06-29 |
| FR1083565A (en) | 1955-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB743178A (en) | Improvements in or relating to electric switches | |
| GB731937A (en) | Improvements relating to electromagnetic relays | |
| US2417758A (en) | Shockproof electromagnetic device | |
| GB743012A (en) | Improvements in and relating to electromagnetic relays | |
| GB572686A (en) | Improvements in and relating to shock resisting relays and switches | |
| US4173004A (en) | Magnetic latch device for a clapper type contactor | |
| GB829332A (en) | Improvements in and relating to electromagnetic relays | |
| GB774832A (en) | Electro-magnetic relays | |
| GB1294188A (en) | Magnet and movable contact support structure for a multiple contact electromagnetically actuated switch | |
| GB695296A (en) | Improvements in or relating to electromagnetic contactors | |
| GB1210618A (en) | Electromagnetic contactor | |
| GB716090A (en) | Improvements in or relating to electromagnetic contactors | |
| GB721617A (en) | Improvements in and relating to electric relays | |
| GB775269A (en) | Improvements in or relating to electromagnetic contactors | |
| GB702790A (en) | Improvements in and relating to electro-magnetic relays | |
| GB1015855A (en) | An electromagnetic arrangement | |
| GB1339854A (en) | Electromagnetically operated switch construction | |
| GB710823A (en) | Improvements relating to pendulums for electrical relays for code signaling systems | |
| GB945100A (en) | Improvements in polarised relays | |
| GB781823A (en) | Improvements in and relating to electromagnetic relays | |
| GB809227A (en) | Electromagnetic relay | |
| US2290632A (en) | Electromagnetic control device | |
| US2089320A (en) | Electromagnetic switching device | |
| GB751762A (en) | Improvement in electromagnetic relay | |
| GB743705A (en) | Improvements in or relating to movable coil relays of the magnetic contact type |