GB704825A - Improvements in and relating to keyboards for typewriting and like machines - Google Patents

Improvements in and relating to keyboards for typewriting and like machines

Info

Publication number
GB704825A
GB704825A GB328052A GB328052A GB704825A GB 704825 A GB704825 A GB 704825A GB 328052 A GB328052 A GB 328052A GB 328052 A GB328052 A GB 328052A GB 704825 A GB704825 A GB 704825A
Authority
GB
United Kingdom
Prior art keywords
rockers
lugs
key
machines
keyboard
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
GB328052A
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.)
RENE ALPHONSE EUGENE HIGONNET
Original Assignee
RENE ALPHONSE EUGENE HIGONNET
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 RENE ALPHONSE EUGENE HIGONNET filed Critical RENE ALPHONSE EUGENE HIGONNET
Priority to GB328052A priority Critical patent/GB704825A/en
Publication of GB704825A publication Critical patent/GB704825A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/18—Locks
    • B41J5/22—Interlocks between keys, e.g. without detent arrangements

Abstract

704,825. Calculating-apparatus. HIGONET, R. A. E., and MOYROUD, L. M. Feb. 7, 1952, No. 3280/52. Class 106 (1). [Also in Groups XVI and XL (b) Keyboard interlocks. A keyboard for typewriters, type-composing machines, telegraph apparatus, calculating machines and like keyboard operated apparatus has a device to prevent two keys being depressed at the same time and which comprises a number of rockers 2-5 having upper lugs projecting into the path of a key-lever 1 so that one rocker e.g. 2 is turned clockwise and one e.g. 3, is turned counterclockwise, further lugs 9, 13 transmit their displacement to adjacent rockers whereby all rockers to the left of the key-lever rock in one direction and all rockers to the right rock in the other direction. The displacement downwardly of the two lugs say 7, 8 engaged by the key-lever positioned between rockers 2 and 3, causes lugs 7a, 8a to be raised and so prevent the operation of the key-levers which operate between rockers 3, 5 and 4, 2 respectively. Lugs 9, 13 engage below the rockers 5, 4 and these are raised so that lugs 12 and 11 prevent operation of the next key-levers and so on.
GB328052A 1952-02-07 1952-02-07 Improvements in and relating to keyboards for typewriting and like machines Expired GB704825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB328052A GB704825A (en) 1952-02-07 1952-02-07 Improvements in and relating to keyboards for typewriting and like machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB328052A GB704825A (en) 1952-02-07 1952-02-07 Improvements in and relating to keyboards for typewriting and like machines

Publications (1)

Publication Number Publication Date
GB704825A true GB704825A (en) 1954-03-03

Family

ID=9755355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB328052A Expired GB704825A (en) 1952-02-07 1952-02-07 Improvements in and relating to keyboards for typewriting and like machines

Country Status (1)

Country Link
GB (1) GB704825A (en)

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