GB958185A - Sealed magnetic contact device - Google Patents
Sealed magnetic contact deviceInfo
- Publication number
- GB958185A GB958185A GB44205/62A GB4420562A GB958185A GB 958185 A GB958185 A GB 958185A GB 44205/62 A GB44205/62 A GB 44205/62A GB 4420562 A GB4420562 A GB 4420562A GB 958185 A GB958185 A GB 958185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fork
- magnetic contact
- coated
- energized
- contact
- 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
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/0201—Materials for reed contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
- H01H51/287—Details of the shape of the contact springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
- H01P1/125—Coaxial switches
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Multi-Conductor Connections (AREA)
Abstract
958,185. Electromagnetic switches. STANDARD TELEPHONES & CABLES Ltd. Nov. 22, 1962 [Nov. 22, 1961], No. 44205/62. Heading H2B. A sealed magnetic contact device comprises a bifurcated change-over magnetic contact blade 4 both forks 5, 6 of which normally engage a fixed non-magnetic contact 2. The upper surface 8 of fork 6 and the lower surface 7 of fork 5 are coated with one of the precious metals, gold or silver. When the device is energized, the fork 6 is attracted to a fixed magnetic contact 3 while the other fork is still in engagement with the non-magnetic contact 2. When the device is sufficiently energized, the other fork 5 is attracted to the magnetic contact 3 as well. On de-energization, fork 5 engages contact 2 before fork 6. In an alternative embodiment (Fig. 3, not shown), one fork is uncoated and the other is coated on both sides with precious metal. On energization the coated fork engages the magnetic contact before the uncoated fork and on deenergization leaves the magnetic contact before the other one. The device may be energized electromagnetically or by the approach of a permanent magnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST18590A DE1170074B (en) | 1961-11-22 | 1961-11-22 | Magnetically operated protective tube changeover contact with transition |
| DEST018889 | 1962-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB958185A true GB958185A (en) | 1964-05-21 |
Family
ID=25994070
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB44205/62A Expired GB958185A (en) | 1961-11-22 | 1962-11-22 | Sealed magnetic contact device |
| GB7266/63A Expired GB1019390A (en) | 1961-11-22 | 1963-02-22 | Magnetic contact blades |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7266/63A Expired GB1019390A (en) | 1961-11-22 | 1963-02-22 | Magnetic contact blades |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3188426A (en) |
| BE (2) | BE628755A (en) |
| CH (2) | CH409063A (en) |
| DE (1) | DE1170074B (en) |
| GB (2) | GB958185A (en) |
| NL (1) | NL289320A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1274732B (en) * | 1964-08-13 | 1968-08-08 | Siemens Ag | Magnetically operated switch contact |
| US7564330B2 (en) * | 2007-04-18 | 2009-07-21 | Key Safety Systems, Inc. | Reed switch contact coating |
| US11309140B2 (en) * | 2019-01-04 | 2022-04-19 | Littelfuse, Inc. | Contact switch coating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2397123A (en) * | 1943-04-30 | 1946-03-26 | Bell Telephone Labor Inc | Contact operation |
| DE1110308B (en) * | 1959-06-03 | 1961-07-06 | Siemens Ag | Magnetically operated protective tube changeover contact with transition |
| US3068335A (en) * | 1960-06-21 | 1962-12-11 | Litton Systems Inc | Dry circuit switch |
-
0
- BE BE625142D patent/BE625142A/xx unknown
- NL NL289320D patent/NL289320A/xx unknown
- BE BE628755D patent/BE628755A/xx unknown
-
1961
- 1961-11-22 DE DEST18590A patent/DE1170074B/en active Pending
-
1962
- 1962-11-02 US US234960A patent/US3188426A/en not_active Expired - Lifetime
- 1962-11-19 CH CH1355062A patent/CH409063A/en unknown
- 1962-11-22 GB GB44205/62A patent/GB958185A/en not_active Expired
-
1963
- 1963-02-22 CH CH227563A patent/CH412053A/en unknown
- 1963-02-22 GB GB7266/63A patent/GB1019390A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH412053A (en) | 1966-04-30 |
| US3188426A (en) | 1965-06-08 |
| BE625142A (en) | |
| CH409063A (en) | 1966-03-15 |
| NL289320A (en) | |
| BE628755A (en) | |
| GB1019390A (en) | 1966-02-02 |
| DE1170074B (en) | 1964-05-14 |
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