GB421960A - Improvements in and relating to synchronising systems for telegraphic apparatus - Google Patents
Improvements in and relating to synchronising systems for telegraphic apparatusInfo
- Publication number
- GB421960A GB421960A GB23365/34A GB2336534A GB421960A GB 421960 A GB421960 A GB 421960A GB 23365/34 A GB23365/34 A GB 23365/34A GB 2336534 A GB2336534 A GB 2336534A GB 421960 A GB421960 A GB 421960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recording
- aug
- relay
- ridge
- receiver
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems
- H04L21/04—Apparatus or local circuits for mosaic printer telegraph systems at the receiving end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Control Of Position Or Direction (AREA)
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
421,960. Synchronous movements. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 13, 1934, Nos. 23365 and 23366. Convention dates, Aug. 11, 1933 and March 16, 1934. [Class 40 (iii)] A rotating recording member 3, associated with a magnetic system 7, 8 in a receiver for signals corresponding to letters analyzed into scanning-lines, scans at least one limiting surface 5 of a normal recording base 1, and, on encroachment of the recorded letters on the limiting surface, the phase of the receiver is adjusted to restore synchronism. A cam 12 on the shaft of the recording-member closes a switch 11, when the end of a recording ridge 4 co-operates with a ridge on the armature 8. If a signal is received at this time, the armature closes a switch 10 to complete the circuit of a relay 13 which steps a differential gear 14 on the driving-shaft. According to modifications : the switches insert a resistance in the circuit of the driving-motor, Fig. 3 (not shown) ; the cam removes the grid bias from a valve which can then respond to a received signal to actuate a relay which controls a centrifugal governor, Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE421960X | 1933-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB421960A true GB421960A (en) | 1935-01-02 |
Family
ID=6461073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23365/34A Expired GB421960A (en) | 1933-08-11 | 1934-08-13 | Improvements in and relating to synchronising systems for telegraphic apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2113429A (en) |
| BE (1) | BE404615A (en) |
| FR (1) | FR778052A (en) |
| GB (1) | GB421960A (en) |
| NL (1) | NL42505C (en) |
-
0
- NL NL42505D patent/NL42505C/xx active
- BE BE404615D patent/BE404615A/xx unknown
-
1934
- 1934-08-07 FR FR778052D patent/FR778052A/en not_active Expired
- 1934-08-11 US US739383A patent/US2113429A/en not_active Expired - Lifetime
- 1934-08-13 GB GB23365/34A patent/GB421960A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2113429A (en) | 1938-04-05 |
| BE404615A (en) | |
| FR778052A (en) | 1935-03-08 |
| NL42505C (en) |
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