GB191323204A - Improvements in Devices for Cyphering and Decyphering Messages and the like. - Google Patents
Improvements in Devices for Cyphering and Decyphering Messages and the like.Info
- Publication number
- GB191323204A GB191323204A GB191323204DA GB191323204A GB 191323204 A GB191323204 A GB 191323204A GB 191323204D A GB191323204D A GB 191323204DA GB 191323204 A GB191323204 A GB 191323204A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- sets
- alphabet
- sliders
- letters
- 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
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
- G09C1/04—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Slide Fasteners (AREA)
Abstract
23,204. Lugagne, G. Oct. 23, 1912, [Convention date]. Ciphers and codes.- Relates to ciphering and deciphering apparatus of the type comprising a number of strips 2 which slide in grooves in a frame 1, each complete strip 2 bearing upper and lower sets of letters of the alphabet for exposure through corresponding reading - slots 3, 3<1>. According to the present invention, an increased interchangeability is obtained by dividing each slider 2 into two parts, the lower parts, as well as the upper parts, being interchangeable with each other and bearing the letters .of the alphabet in various orders. The ends of the sliders are provided with numerals so that, in transforming any particular message, both the upper and lower sets of sliders are first set according to known keys determined by particular arrangements of the two sets of numerals.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR191323204X | 1912-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191323204A true GB191323204A (en) | 1914-04-09 |
Family
ID=32526402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191323204D Expired GB191323204A (en) | 1912-10-23 | 1913-10-14 | Improvements in Devices for Cyphering and Decyphering Messages and the like. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191323204A (en) |
-
1913
- 1913-10-14 GB GB191323204D patent/GB191323204A/en not_active Expired
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