GB378039A - Improvements in and relating to optical signalling - Google Patents
Improvements in and relating to optical signallingInfo
- Publication number
- GB378039A GB378039A GB1294331A GB1294331A GB378039A GB 378039 A GB378039 A GB 378039A GB 1294331 A GB1294331 A GB 1294331A GB 1294331 A GB1294331 A GB 1294331A GB 378039 A GB378039 A GB 378039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signalling
- lamps
- signals
- code
- given
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Blinds (AREA)
Abstract
378,039. Code signalling. DANNEVIG, L., 39, Oscars Gate, Oslo, Norway. May 1, 1931, No. 12943. [Class 118 (ii).] Optical signalling means comprises five signals of different appearance either in the number of lamps displayed, or in the form of the signals, for use separately or combined in pairs with means for operating them. In one form the apparatus comprises five lamps B, any number of which can be lit up by depressing one key only or two in succession of the keys on the keyboard A according to a code, an example of which is given. Numbers are signalled by long signals with the same signalling system. For day signalling the five spring-controlled blinds with dots, shown in Fig. 2, and mounted in a common frame, are used. In the second modification five forms of signal are given by combinations of the three lamps F, G, H, Fig. 3, the forms being represented in Fig. 4, which show for day use five blinds mounted in a common frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1294331A GB378039A (en) | 1931-05-01 | 1931-05-01 | Improvements in and relating to optical signalling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1294331A GB378039A (en) | 1931-05-01 | 1931-05-01 | Improvements in and relating to optical signalling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB378039A true GB378039A (en) | 1932-08-02 |
Family
ID=10013979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1294331A Expired GB378039A (en) | 1931-05-01 | 1931-05-01 | Improvements in and relating to optical signalling |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB378039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203272A (en) * | 1987-02-25 | 1988-10-12 | Patrick Grattan Foley | New or improved communication system |
-
1931
- 1931-05-01 GB GB1294331A patent/GB378039A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203272A (en) * | 1987-02-25 | 1988-10-12 | Patrick Grattan Foley | New or improved communication system |
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