GB546980A - Improvements relating to electrical relays - Google Patents
Improvements relating to electrical relaysInfo
- Publication number
 - GB546980A GB546980A GB1595/41A GB159541A GB546980A GB 546980 A GB546980 A GB 546980A GB 1595/41 A GB1595/41 A GB 1595/41A GB 159541 A GB159541 A GB 159541A GB 546980 A GB546980 A GB 546980A
 - Authority
 - GB
 - United Kingdom
 - Prior art keywords
 - pendulum
 - contacts
 - circuit
 - rocker
 - fixed
 - 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)
 - Breakers (AREA)
 - Food-Manufacturing Devices (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 | 
|---|---|
| GB546980A true GB546980A (en) | 1942-08-07 | 
Family
ID=23398871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB1595/41A Expired GB546980A (en) | 1940-09-07 | 1941-02-06 | Improvements relating to electrical relays | 
Country Status (4)
| Country | Link | 
|---|---|
| US (1) | US2300790A (instruction) | 
| BE (2) | BE477782A (instruction) | 
| FR (2) | FR950558A (instruction) | 
| GB (1) | GB546980A (instruction) | 
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 BE477696D patent/BE477696A/xx unknown
 - BE BE477782D patent/BE477782A/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 | 
|---|---|
| FR950558A (fr) | 1949-09-30 | 
| BE477782A (instruction) | |
| FR62303E (fr) | 1955-06-13 | 
| BE477696A (instruction) | |
| US2300790A (en) | 1942-11-03 | 
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