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    Automatic ribbon takeup
    2.
    发明授权
    Automatic ribbon takeup 失效
    自动RIBBON TAKEUP

    公开(公告)号：US3612242A

    公开(公告)日：1971-10-12

    申请号：US3612242D

    申请日：1968-02-01

    Applicant: IBM

    Inventor： CASSELL JOHN N ,  ENGLE VENCIL D ,  HYMES LAWRENCE ,  ROLLER DONALD C

    IPC: B41J31/10 ,  B41J33/14

    CPC classification number: B41J31/10

    Abstract: Typewriter carbon ribbon is automatically attached to a takeup reel by the combined provision of: (1) a flexible camming plate that creates significant friction interaction between the reel and the ribbon and is constructed to be effective even when substantial amounts of ribbon have been previously wound on the reel; (2) an electrically neutral flange to eliminate the adverse effects of static electricity on automatic attachment; (3) a reel enclosure for maintaining loose ribbon in the proximity of the reel; (4) several selective control modes of operation to assist the operator; and (5) several other features of construction relating principally to effective handling of a loose flimsy ribbon end.

    Automatic type element changing mechanism for single element typewriter
    5.
    发明授权
    Automatic type element changing mechanism for single element typewriter 失效
    自动型元件更换单元TYPEWRITER

    公开(公告)号：US3645372A

    公开(公告)日：1972-02-29

    申请号：US3645372D

    申请日：1969-12-31

    Applicant: IBM

    Inventor： NOELL NEWTON G ,  ROLLER DONALD C

    IPC: B41J1/60 ,  B41J25/24 ,  B41J23/04 ,  B41J1/32

    CPC classification number: B41J1/60 ,  B41J25/24

    Abstract: Type element changer mechanism for selectively interchanging type elements on a single element typewriter to provide a plurality of type fonts, selectively changeable under the control of a control unit allowing a typewriter having a memory and/or control unit to print several type fonts without manual changing of the type elements.

    Abstract translation: 用于在单个元件打字机上选择性地互换类型元件以提供多种类型字体的类型元件更换器机构，可在控制单元的控制下选择性地改变，允许具有存储器和/或控制单元的打字机打印多种类型的字体，而无需手动改变 的类型元素。

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