GB113317A - Improvements in or relating to Telegraph Apparatus. - Google Patents
Improvements in or relating to Telegraph Apparatus.Info
- Publication number
- GB113317A GB113317A GB229617A GB229617A GB113317A GB 113317 A GB113317 A GB 113317A GB 229617 A GB229617 A GB 229617A GB 229617 A GB229617 A GB 229617A GB 113317 A GB113317 A GB 113317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- operate
- contact
- sounder
- morse
- buzzer
- 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
- H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
- H04L15/24—Apparatus or circuits at the receiving end
- H04L15/28—Code reproducing apparatus
- H04L15/285—Telegraph sounders; Apparatus for acoustic reception
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Control Devices (AREA)
Abstract
113,317. Indo - European Telegraph Co., and Morse, A. H. Feb. 15, 1917. Morse and like sounders.- The armature of an electromagnetic receiver is provided with a contact, and the receiver associated with a twoway switch in such a manner that it can operate either as a sounder or as a buzzer. In the arrangement shown in Figs. 1, 4 and 5, a spring- controlled lever 5 carries the armature 4 of a magnet 3 and a contact 17 adapted to engage an adjustable contact. 18. On the under side of the base 2 is a two-way switch 20, 21, 22 which, in the position shown, causes the apparatus to operate as a sounder, and in the position indicated by dotted lines in Fig. 5, to operate as a buzzer. The magnet 3 is shunted by a resistance 25.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB229617A GB113317A (en) | 1917-02-15 | 1917-02-15 | Improvements in or relating to Telegraph Apparatus. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB229617A GB113317A (en) | 1917-02-15 | 1917-02-15 | Improvements in or relating to Telegraph Apparatus. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB113317A true GB113317A (en) | 1918-02-15 |
Family
ID=32243719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB229617A Expired GB113317A (en) | 1917-02-15 | 1917-02-15 | Improvements in or relating to Telegraph Apparatus. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB113317A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51116018U (en) * | 1975-03-15 | 1976-09-20 |
-
1917
- 1917-02-15 GB GB229617A patent/GB113317A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51116018U (en) * | 1975-03-15 | 1976-09-20 |
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