GB1052696A - - Google Patents

Info

Publication number
GB1052696A
GB1052696A GB1052696DA GB1052696A GB 1052696 A GB1052696 A GB 1052696A GB 1052696D A GB1052696D A GB 1052696DA GB 1052696 A GB1052696 A GB 1052696A
Authority
GB
United Kingdom
Prior art keywords
tape
key
keys
loop
supports
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.)
Active
Application number
Publication of GB1052696A publication Critical patent/GB1052696A/en
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00Devices or arrangements for controlling character selection
    • B41J5/08Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/18Locks
    • B41J5/22Interlocks between keys, e.g. without detent arrangements

Landscapes

  • Printers Characterized By Their Purpose (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

1,052,696. Typewriters &c. MARCONI CO. Ltd. July 16, 1965 [Sept. 16, 1964], No. 37912/64. Heading B6F. A key-interlock device comprises a non- stretchable tape 7 arranged over a series of support rollers so that when the desired number of keys are depressed (usually one) the tape is taut and prevents depression of further keys. The tape 7 may be adjustably mounted in fixed end supports 4, 5; in a modification it may be an endless tape around two or more supports. The key extensions, which may also have rollers, arranged to act on different parts of the loop including acting on the underside of the loop.
GB1052696D Active GB1052696A (en)

Publications (1)

Publication Number Publication Date
GB1052696A true GB1052696A (en)

Family

ID=1757153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1052696D Active GB1052696A (en)

Country Status (1)

Country Link
GB (1) GB1052696A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516529A (en) * 1968-01-26 1970-06-23 Singer Co Keyboard lock
US4091912A (en) * 1977-03-17 1978-05-30 Computer Peripherals, Inc. Record media clamping mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516529A (en) * 1968-01-26 1970-06-23 Singer Co Keyboard lock
US4091912A (en) * 1977-03-17 1978-05-30 Computer Peripherals, Inc. Record media clamping mechanism

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