GB833917A - Improvements in or relating to magnetic contacts in sealed protective tubes - Google Patents
Improvements in or relating to magnetic contacts in sealed protective tubesInfo
- Publication number
- GB833917A GB833917A GB24768/58A GB2476858A GB833917A GB 833917 A GB833917 A GB 833917A GB 24768/58 A GB24768/58 A GB 24768/58A GB 2476858 A GB2476858 A GB 2476858A GB 833917 A GB833917 A GB 833917A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inserts
- springs
- magnetic
- sealed protective
- contacts
- 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
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
- H01H1/66—Contacts sealed in an evacuated or gas-filled envelope, e.g. magnetic dry-reed contacts
-
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0072—Disassembly or repair of discharge tubes
- H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
833,917. Electromagnetic switches; contact members for switches. SIEMENS & HALSKE A.G. July 31, 1958 [Aug. 13, 1957], No. 24768/58. Class 38 (5). Magnetic contact springs F1, F2 in a sealed protective tube (not shown) each have a region L1, L2 in the centre of their contact area which has a higher electrical conductivity than the rest of the spring. When the contacts are closed by a magnetic field produced around the tube the current concentrated in the regions L1, L2 produces a magnetic field, shown by a dashed line in Fig. 3, which tends to hold the contacts together. The inserts of higher conductivity material may be connected to terminals such as D and insulated from the remainder of the spring by an oxide film. The springs may be of iron and the inserts of silver. The inserts may be raised slightly above the surface of the springs so that there are two small air gaps in the magnetic path shown in Fig. 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES54726A DE1056273B (en) | 1957-08-13 | 1957-08-13 | Protective tube contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB833917A true GB833917A (en) | 1960-05-04 |
Family
ID=7489985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24768/58A Expired GB833917A (en) | 1957-08-13 | 1958-07-31 | Improvements in or relating to magnetic contacts in sealed protective tubes |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2921163A (en) |
| BE (1) | BE569796A (en) |
| CH (1) | CH358865A (en) |
| DE (1) | DE1056273B (en) |
| FR (1) | FR1201153A (en) |
| GB (1) | GB833917A (en) |
| NL (2) | NL230361A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL295616A (en) * | 1961-02-01 | |||
| DE2041318B2 (en) * | 1970-08-20 | 1972-07-20 | Licentia Patent-Verwaltungs-GmbH, 6000 Frankfurt,- | Switching spring for a protective tube contact relay |
| US4433317A (en) * | 1982-01-18 | 1984-02-21 | Mechanical Enterprises, Inc. | Controlled floating contactor switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2289830A (en) * | 1938-03-29 | 1942-07-14 | Bell Telephone Labor Inc | Circuit closing device |
| US2343323A (en) * | 1942-08-11 | 1944-03-07 | Westinghouse Electric & Mfg Co | Electric switch |
-
0
- BE BE569796D patent/BE569796A/xx unknown
- NL NL105365D patent/NL105365C/xx active
- NL NL230361D patent/NL230361A/xx unknown
-
1957
- 1957-08-13 DE DES54726A patent/DE1056273B/en active Pending
-
1958
- 1958-07-18 US US749507A patent/US2921163A/en not_active Expired - Lifetime
- 1958-07-31 GB GB24768/58A patent/GB833917A/en not_active Expired
- 1958-08-06 FR FR1201153D patent/FR1201153A/en not_active Expired
- 1958-08-12 CH CH358865D patent/CH358865A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL230361A (en) | |
| NL105365C (en) | |
| BE569796A (en) | |
| CH358865A (en) | 1961-12-15 |
| US2921163A (en) | 1960-01-12 |
| FR1201153A (en) | 1959-12-29 |
| DE1056273B (en) | 1959-04-30 |
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