FR630203A - Improvements to signaling devices - Google Patents
Improvements to signaling devicesInfo
- Publication number
- FR630203A FR630203A FR630203DA FR630203A FR 630203 A FR630203 A FR 630203A FR 630203D A FR630203D A FR 630203DA FR 630203 A FR630203 A FR 630203A
- Authority
- FR
- France
- Prior art keywords
- signaling devices
- signaling
- devices
- 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
- 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
- H01H51/10—Contacts retained open or closed by a latch which is controlled by an electromagnet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR630203T | 1926-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR630203A true FR630203A (en) | 1927-11-25 |
Family
ID=8990907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR630203D Expired FR630203A (en) | 1926-05-15 | 1926-05-15 | Improvements to signaling devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR630203A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817401A (en) * | 1953-05-11 | 1957-12-24 | John K Ostrander | Time control system and apparatus |
-
1926
- 1926-05-15 FR FR630203D patent/FR630203A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817401A (en) * | 1953-05-11 | 1957-12-24 | John K Ostrander | Time control system and apparatus |
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