GB328720A - Improvements in or relating to electric signs of the monogrammic type - Google Patents
Improvements in or relating to electric signs of the monogrammic typeInfo
- Publication number
- GB328720A GB328720A GB608229A GB608229A GB328720A GB 328720 A GB328720 A GB 328720A GB 608229 A GB608229 A GB 608229A GB 608229 A GB608229 A GB 608229A GB 328720 A GB328720 A GB 328720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- heads
- plate
- monogrammic
- springs
- 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
Abstract
328,720. Donegani, W. Feb. 25, 1929. Monogrammic signs. - In monogrammic signs wherein letters and other characters are formed by the selective illumination or actuation of the units of a group of lamps or shutters, keys or templates d, comprising each an embossed letter o, are arranged so as to be rotatable in a circle over groups of electric contacts a, each comprising thirty contact pins f pressed upwards by springs f<1> and adapted, when pressed down by a template, to contact with spring plunger contacts h<1> and to be held in this position by means of a retaining-plate. j forming a common electric connection for the contacts. The pins f have tapered heads m which pass through perforations k in the plate j, which moves laterally to allow the heads to pass and is then restored by springs n to engage the shoulders of the heads m. To re-set the contacts, the retaining-plate j is pulled back by a treadle p and wires q. In a modification using hold-on relays the plates i are dispensed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB608229A GB328720A (en) | 1929-02-25 | 1929-02-25 | Improvements in or relating to electric signs of the monogrammic type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB608229A GB328720A (en) | 1929-02-25 | 1929-02-25 | Improvements in or relating to electric signs of the monogrammic type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB328720A true GB328720A (en) | 1930-05-08 |
Family
ID=9808045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB608229A Expired GB328720A (en) | 1929-02-25 | 1929-02-25 | Improvements in or relating to electric signs of the monogrammic type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB328720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2443731A1 (en) * | 1978-12-08 | 1980-07-04 | Mac Greevy Roy | DISPLAY WITH ONE OR MORE CHARACTERS ASSEMBLED IN A MATRIX OF ELEMENTS |
-
1929
- 1929-02-25 GB GB608229A patent/GB328720A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2443731A1 (en) * | 1978-12-08 | 1980-07-04 | Mac Greevy Roy | DISPLAY WITH ONE OR MORE CHARACTERS ASSEMBLED IN A MATRIX OF ELEMENTS |
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