GB362002A - Improvements in coding apparatus - Google Patents

Improvements in coding apparatus

Info

Publication number
GB362002A
GB362002A GB26480/30A GB2648030A GB362002A GB 362002 A GB362002 A GB 362002A GB 26480/30 A GB26480/30 A GB 26480/30A GB 2648030 A GB2648030 A GB 2648030A GB 362002 A GB362002 A GB 362002A
Authority
GB
United Kingdom
Prior art keywords
discs
apertures
partitions
rods
characters
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
Application number
GB26480/30A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB362002A publication Critical patent/GB362002A/en
Expired legal-status Critical Current

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)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

362,002. Typewriters. SCHIMMEL, F., 10, Rue de la Ville-Neuve, Aulnay-sous- Bois, and BIDAULT, E. A., 17, Rue du Louvre, Paris, both in France. Sept. 4, 1930, No. 26480. Convention date, Sept. 4, 1929. [Class 100 (iv).] Type-wheel machines for coding and decoding.- A coding and decoding device consists of a series of discs bearing letters or signs on the periphery and arranged in pairs on a shaft. The pairs of discs 6, 7 are separated by partitions 1 connected together by rods 3. The characters on the discs 6 are formed in intaglio or are inscribed flat on the surfaces, but those on the discs 7 are in relief so as to be capable of printing. The discs 6 are formed with a series of apertures corresponding in number to the number of characters, and arranged near the edge of each disc, and the discs 7 are provided with two diametrically opposed apertures housing balls 8 adapted to be projected by springs to engage with the apertures in the discs 6 to maintain the discs in adjusted position. The discs 7 are provided with two other apertures on the opposite face, these apertures also containing spring-pressed balls adapted to engage apertures in partitions 1, the coupling between the partitions 1 and discs 7 being weaker than that between the discs 6, 7. The relative positions of the discs 6, 7 in each pair are arranged according to a prearranged key, the message to be coded or decoded is set on the discs 6 against indicating marks 16 on the partitions 1, and the cipher or clear text is read on the discs 7. The outer partitions pivotally support segments 10 connected together by rods 12 and strips 11, the strips 11 being soldered to the segments 10 to form a frame in which is mounted a strip of felt soaked in ink and held in place by a cover 13. A paper strip 14 is passed over the rods 12 and under the felt, and pressure on the cover 13 causes the relief characters on the discs 7 to make an impression on the paper strip. The inked felt may be replaced by carbon paper.
GB26480/30A 1929-09-04 1930-09-04 Improvements in coding apparatus Expired GB362002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR556463X 1929-09-04

Publications (1)

Publication Number Publication Date
GB362002A true GB362002A (en) 1931-12-03

Family

ID=8940183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26480/30A Expired GB362002A (en) 1929-09-04 1930-09-04 Improvements in coding apparatus

Country Status (4)

Country Link
US (1) US1921327A (en)
DE (1) DE556463C (en)
FR (1) FR696777A (en)
GB (1) GB362002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291252A (en) * 1994-07-04 1996-01-17 Julian Vincent Stone Device for storing and encrypying an alphanumeric code

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529487A (en) * 1944-03-13 1950-11-14 Vernon E Cooley Rotor assembly
US2688198A (en) * 1951-01-09 1954-09-07 Sidney L Neff Coding device
US2884712A (en) * 1952-11-17 1959-05-05 Hagelin Boris Caesar Wilhelm Ciphering device
FR1489051A (en) * 1966-03-24 1967-11-03
CH457518A (en) * 1966-04-04 1968-06-15 Guhl & Scheibler Ag Device for printing labels
US3349882A (en) * 1966-05-17 1967-10-31 Transvertex Ab Ciphering machine
US3955497A (en) * 1974-09-18 1976-05-11 James Rawlings Sydnor Bar code printing device
DE4303888C1 (en) * 1993-02-10 1994-09-29 Schwab Hans Peter Coding / decoding card

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291252A (en) * 1994-07-04 1996-01-17 Julian Vincent Stone Device for storing and encrypying an alphanumeric code
GB2291252B (en) * 1994-07-04 1997-12-17 Julian Vincent Stone Device for storing and encrypting an alphanumeric code

Also Published As

Publication number Publication date
FR696777A (en) 1931-01-07
DE556463C (en) 1932-08-09
US1921327A (en) 1933-08-08

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