BE470721A - - Google Patents
Info
- Publication number
- BE470721A BE470721A BE470721DA BE470721A BE 470721 A BE470721 A BE 470721A BE 470721D A BE470721D A BE 470721DA BE 470721 A BE470721 A BE 470721A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/22—Switches without multi-position wipers
- H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
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- 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)
- Load-Engaging Elements For Cranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2499553X | 1946-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE470721A true BE470721A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=20425898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE470721D BE470721A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1946-02-27 |
Country Status (3)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647166A (en) * | 1949-01-19 | 1953-07-28 | Int Standard Electric Corp | Switching mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB225932A (en) * | 1923-09-11 | 1924-12-11 | Relay Automatic Telephone Co | Improvements in electric switching apparatus suitable for use in telephony |
| US2127322A (en) * | 1934-07-06 | 1938-08-16 | Ericsson Telefon Ab L M | Selector |
| US2309422A (en) * | 1940-08-23 | 1943-01-26 | Western Electric Co | Circuit controlling device for electrical switching apparatus |
| US2367101A (en) * | 1940-09-19 | 1945-01-09 | Vigren Sten Daniel | Selecting device for telephone and signal systems |
| US2438042A (en) * | 1945-04-21 | 1948-03-16 | Stromberg Carlson Co | Selector switch |
-
0
- BE BE470721D patent/BE470721A/xx unknown
-
1947
- 1947-01-15 US US722241A patent/US2499553A/en not_active Expired - Lifetime
- 1947-02-24 FR FR942267D patent/FR942267A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2499553A (en) | 1950-03-07 |
| FR942267A (fr) | 1949-02-03 |