GB195564A - Improvements in electrical advertising, signalling and displaying apparatus - Google Patents
Improvements in electrical advertising, signalling and displaying apparatusInfo
- Publication number
- GB195564A GB195564A GB1991622A GB1991622A GB195564A GB 195564 A GB195564 A GB 195564A GB 1991622 A GB1991622 A GB 1991622A GB 1991622 A GB1991622 A GB 1991622A GB 195564 A GB195564 A GB 195564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- key
- contacts
- spring
- rods
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
195,564. Marks, C. T., Higgins, S. G., and Foxlee, A. E. July 20, 1922. Monogrammic signals.-In apparatus wherein a word or design is traced by an operator on the keys of a keyboard, and is reproduced in fields of electric lamp elements, each key C is normally supported by a spring C<2> and when the key is depressed the nose D' of a spring-pressed bolt D engages a recess in the key stem. The bolts D are mounted in blocks on rods E which are connected to a common cross bar E<1>, which when pressed releases all depressed keys. The rods are spring mounted both within and without the casing. On the lower end of each key stem is an insulating block C<4> which, on depression of the key, presses together contacts F, F<2>. The contacts F<2> are connected to the respective lamps, and the contacts F to a bar which forms a common terminal for all in the same row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1991622A GB195564A (en) | 1922-07-20 | 1922-07-20 | Improvements in electrical advertising, signalling and displaying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1991622A GB195564A (en) | 1922-07-20 | 1922-07-20 | Improvements in electrical advertising, signalling and displaying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB195564A true GB195564A (en) | 1923-04-05 |
Family
ID=10137266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1991622A Expired GB195564A (en) | 1922-07-20 | 1922-07-20 | Improvements in electrical advertising, signalling and displaying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB195564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2720613A (en) * | 1952-09-13 | 1955-10-11 | Century Lighting Inc | Switching systems for lighting control boards |
-
1922
- 1922-07-20 GB GB1991622A patent/GB195564A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2720613A (en) * | 1952-09-13 | 1955-10-11 | Century Lighting Inc | Switching systems for lighting control boards |
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