GB418877A - Improvements in ciphering machines - Google Patents

Improvements in ciphering machines

Info

Publication number
GB418877A
GB418877A GB34835/33A GB3483533A GB418877A GB 418877 A GB418877 A GB 418877A GB 34835/33 A GB34835/33 A GB 34835/33A GB 3483533 A GB3483533 A GB 3483533A GB 418877 A GB418877 A GB 418877A
Authority
GB
United Kingdom
Prior art keywords
shaft
contacts
key
ciphering
teeth
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
GB34835/33A
Other languages
English (en)
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 GB418877A publication Critical patent/GB418877A/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
    • G09C3/00—Typewriters for ciphering or deciphering cryptographic text
    • G09C3/04—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member
    • G09C3/08—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member the connections being electrical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
GB34835/33A 1932-12-10 1933-12-11 Improvements in ciphering machines Expired GB418877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR418877X 1932-12-10

Publications (1)

Publication Number Publication Date
GB418877A true GB418877A (en) 1934-11-01

Family

ID=8898330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34835/33A Expired GB418877A (en) 1932-12-10 1933-12-11 Improvements in ciphering machines

Country Status (2)

Country Link
FR (1) FR747366A (cs)
GB (1) GB418877A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950800A (en) * 1956-10-24 1960-08-30 Graphic Arts Res Foundation In Ideographic type composing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950800A (en) * 1956-10-24 1960-08-30 Graphic Arts Res Foundation In Ideographic type composing machine

Also Published As

Publication number Publication date
FR747366A (cs) 1933-06-14

Similar Documents

Publication Publication Date Title
GB740508A (en) Record controlled printing machine
US2116732A (en) Coding and decoding machine
GB418877A (en) Improvements in ciphering machines
US6130946A (en) Cryptographs
GB452451A (en) Improvements in or relating to record-card-controlled printing mechanism
US1510441A (en) Electric coding machine
GB538309A (en) Cryptographic typewriter
US2192353A (en) Printing telegraph receiver
US2180360A (en) Printing telegraph apparatus
US2525941A (en) Mechanical ciphering unit
US2193970A (en) Printing telegraph apparatus
GB355933A (en) Improvements in machines for perforating tapes for controlling type-composing machines
US1711497A (en) And william f
GB514575A (en) Improvements in or relating to type printing telegraphy
US2182635A (en) Printing telegraph apparatus
GB164370A (en) Improvements in or relating to printing apparatus, suitable for reproducing in ordinary printed characters telegraphic messages
US3393785A (en) Keyboard operated spring powered type wheel recorder
US727213A (en) Cipher type-writer.
US1965602A (en) Keyboard perforator transmitter
US2265715A (en) Cipher apparatus
US4155659A (en) Printing and coding machine
US2934833A (en) Enciphering device
GB418228A (en) Improvements in or relating to record card controlled printing mechanisms
GB375923A (en) Improvements in or relating to key board mechanism for telegraph apparatus
GB807035A (en) Improvements in or relating to printing mechanisms