GB549074A - Improvements in electrical signalling systems utilising trains of impulses for control purposes - Google Patents
Improvements in electrical signalling systems utilising trains of impulses for control purposesInfo
- Publication number
- GB549074A GB549074A GB11926/42A GB1192642A GB549074A GB 549074 A GB549074 A GB 549074A GB 11926/42 A GB11926/42 A GB 11926/42A GB 1192642 A GB1192642 A GB 1192642A GB 549074 A GB549074 A GB 549074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impulses
- trains
- control purposes
- signalling systems
- electrical signalling
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Relay Circuits (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5514/41A GB549047A (en) | 1941-04-28 | 1941-04-28 | Improvements in electrical signalling systems utilising trains of impulses for control purposes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB549074A true GB549074A (en) | 1942-11-04 |
Family
ID=9797640
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5514/41A Expired GB549047A (en) | 1941-04-28 | 1941-04-28 | Improvements in electrical signalling systems utilising trains of impulses for control purposes |
| GB11926/42A Expired GB549074A (en) | 1941-04-28 | 1941-04-28 | Improvements in electrical signalling systems utilising trains of impulses for control purposes |
| GB16350/42A Expired GB550350A (en) | 1941-04-28 | 1941-04-28 | Improvements in electrical signalling systems utilising trains of impulses for control purposes |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5514/41A Expired GB549047A (en) | 1941-04-28 | 1941-04-28 | Improvements in electrical signalling systems utilising trains of impulses for control purposes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16350/42A Expired GB550350A (en) | 1941-04-28 | 1941-04-28 | Improvements in electrical signalling systems utilising trains of impulses for control purposes |
Country Status (7)
-
0
- NL NL106092D patent/NL106092C/xx active
- NL NL64857D patent/NL64857C/xx active
- BE BE468430D patent/BE468430A/xx unknown
-
1941
- 1941-04-28 GB GB5514/41A patent/GB549047A/en not_active Expired
- 1941-04-28 GB GB11926/42A patent/GB549074A/en not_active Expired
- 1941-04-28 GB GB16350/42A patent/GB550350A/en not_active Expired
-
1942
- 1942-03-14 US US434762A patent/US2334591A/en not_active Expired - Lifetime
- 1942-03-26 CH CH241317D patent/CH241317A/de unknown
- 1942-04-28 FR FR907461D patent/FR907461A/fr not_active Expired
-
1949
- 1949-01-01 DE DEP29260A patent/DE842361C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB550350A (en) | 1943-01-04 |
| NL106092C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| DE842361C (de) | 1952-06-26 |
| CH241317A (de) | 1946-02-28 |
| BE468430A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| NL64857C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| US2334591A (en) | 1943-11-16 |
| FR907461A (fr) | 1946-03-13 |
| GB549047A (en) | 1942-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB549074A (en) | Improvements in electrical signalling systems utilising trains of impulses for control purposes | |
| GB513409A (en) | Improvements in or relating to electrical signalling systems | |
| GB556928A (en) | Improvements in or relating to automatic or semi-automatic telephone systems | |
| GB556927A (en) | Improvements in or relating to the construction of selector switches as used in automtic telephone and like systems | |
| GB556920A (en) | Improvements in or relating to selector operating circuits for use in automatic telephone or like systems | |
| CA401025A (en) | Telegraph switching system | |
| CA396491A (en) | Current conversion system | |
| CA398119A (en) | Current conversion system | |
| AU114757B2 (en) | Telegraph signal regenerators | |
| GB452971A (en) | Improvements in electric welding equipment | |
| AU55141A (en) | Telegraph signal regenerators | |
| CA398649A (en) | Railway signalling system | |
| CA396215A (en) | Railway signalling system | |
| CA396216A (en) | Railway signalling system | |
| CA398121A (en) | Current transfer system | |
| CA394402A (en) | Electrical signalling system | |
| CA400308A (en) | Telegraph system | |
| CA401694A (en) | Telegraph system | |
| AU115414B2 (en) | Improvements infrequency modulation receiving systems | |
| CA400994A (en) | Scotch block | |
| CA401690A (en) | Telegraph exchange system | |
| CA400724A (en) | High or low voltage indicating system | |
| CA397398A (en) | Train control system | |
| CA400958A (en) | Current converter | |
| CA395218A (en) | Carbon collector mounting |