GB513811A - Improvements in impulse registering devices of the type used in telephone systems - Google Patents
Improvements in impulse registering devices of the type used in telephone systemsInfo
- Publication number
- GB513811A GB513811A GB21485/38A GB2148538A GB513811A GB 513811 A GB513811 A GB 513811A GB 21485/38 A GB21485/38 A GB 21485/38A GB 2148538 A GB2148538 A GB 2148538A GB 513811 A GB513811 A GB 513811A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- cam
- magnet
- impulses
- slots
- 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
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract 4
Classifications
-
- 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
- H04Q1/34—Impulse regenerators with mechanical or other non-electrical marking arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmission Devices (AREA)
- Structure Of Telephone Exchanges (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE435549D BE435549A (enrdf_load_stackoverflow) | 1938-07-20 | ||
GB21485/38A GB513811A (en) | 1938-07-20 | 1938-07-20 | Improvements in impulse registering devices of the type used in telephone systems |
US285392A US2256869A (en) | 1938-07-20 | 1939-07-19 | Impulse registering device of the type used in telephone systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21485/38A GB513811A (en) | 1938-07-20 | 1938-07-20 | Improvements in impulse registering devices of the type used in telephone systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB513811A true GB513811A (en) | 1939-10-23 |
Family
ID=27772852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21485/38A Expired GB513811A (en) | 1938-07-20 | 1938-07-20 | Improvements in impulse registering devices of the type used in telephone systems |
Country Status (3)
Country | Link |
---|---|
US (1) | US2256869A (enrdf_load_stackoverflow) |
BE (1) | BE435549A (enrdf_load_stackoverflow) |
GB (1) | GB513811A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2624785A (en) * | 1949-07-19 | 1953-01-06 | Kellogg Switchboard & Supply | Counting and registering relay circuit |
-
0
- BE BE435549D patent/BE435549A/xx unknown
-
1938
- 1938-07-20 GB GB21485/38A patent/GB513811A/en not_active Expired
-
1939
- 1939-07-19 US US285392A patent/US2256869A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE435549A (enrdf_load_stackoverflow) | |
US2256869A (en) | 1941-09-23 |
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