FR950558A - Perfectionnements aux relais électriques - Google Patents
Perfectionnements aux relais électriquesInfo
- Publication number
- FR950558A FR950558A FR950558DA FR950558A FR 950558 A FR950558 A FR 950558A FR 950558D A FR950558D A FR 950558DA FR 950558 A FR950558 A FR 950558A
- Authority
- FR
- France
- Prior art keywords
- electrical relays
- relays
- electrical
- 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
- H01H51/30—Electromagnetic relays specially adapted for actuation by ac
- H01H51/32—Frequency relays; Mechanically-tuned relays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
- B61L23/12—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only partly operated by train
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Food-Manufacturing Devices (AREA)
- Breakers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US355793A US2300790A (en) | 1940-09-07 | 1940-09-07 | Electrical relay |
Publications (1)
Publication Number | Publication Date |
---|---|
FR950558A true FR950558A (fr) | 1949-09-30 |
Family
ID=23398871
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR950558D Expired FR950558A (fr) | 1940-09-07 | 1947-07-31 | Perfectionnements aux relais électriques |
FR62303D Expired FR62303E (fr) | 1940-09-07 | 1947-08-04 | Perfectionnements aux relais électriques |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR62303D Expired FR62303E (fr) | 1940-09-07 | 1947-08-04 | Perfectionnements aux relais électriques |
Country Status (4)
Country | Link |
---|---|
US (1) | US2300790A (it) |
BE (2) | BE477696A (it) |
FR (2) | FR950558A (it) |
GB (1) | GB546980A (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2439248A (en) * | 1943-10-04 | 1948-04-06 | Gregory Motors Inc | Electromotor |
US2485624A (en) * | 1944-08-29 | 1949-10-25 | Int Standard Electric Corp | Vibrator relay |
DE851075C (de) * | 1949-12-18 | 1952-10-02 | Siemens Ag | Anordnung bei Relais im Eisenbahnsicherungswesen |
-
0
- BE BE477782D patent/BE477782A/xx unknown
- BE BE477696D patent/BE477696A/xx unknown
-
1940
- 1940-09-07 US US355793A patent/US2300790A/en not_active Expired - Lifetime
-
1941
- 1941-02-06 GB GB1595/41A patent/GB546980A/en not_active Expired
-
1947
- 1947-07-31 FR FR950558D patent/FR950558A/fr not_active Expired
- 1947-08-04 FR FR62303D patent/FR62303E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE477782A (it) | |
BE477696A (it) | |
US2300790A (en) | 1942-11-03 |
GB546980A (en) | 1942-08-07 |
FR62303E (fr) | 1955-06-13 |
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