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    Carriage drive for high speed printer
    1.
    发明授权
    Carriage drive for high speed printer 失效
    高速打印机运输驱动

    公开(公告)号：US3670861A

    公开(公告)日：1972-06-20

    申请号：US3670861D

    申请日：1970-09-10

    申请人： EXTEL CORP

    发明人： ZENNER WALTER J ,  KRANZ RAYMOND E

    IPC分类号： B41J19/02 ,  B41J19/72

    CPC分类号： B41J19/02 ,  B41J19/72 ,  Y10S400/903 ,  Y10T74/19614

    摘要： A carriage drive for a high speed dot matrix printer, including a reversible stepping motor connected through a clutch to a rotary driven member that is in turn connected by a belt to the printer carriage. The clutch remains engaged as long as the motor operates in a character-spacing direction, but reversal of the motor disengages the clutch and permits a torsion spring to drive the carriage back to a line start position. Near the end of the return movement, a flywheel decelerator absorbs the kinetic energy of the carriage and then utilizes that kinetic energy to prevent bouncing of the carriage.

    摘要翻译： 一种用于高速点阵打印机的托架驱动器，包括通过离合器连接到旋转从动构件的可逆步进马达，旋转从动构件又通过皮带连接到打印机托架。 只要电机以字符间隔方向操作，离合器保持接合，但是马达的反转使离合器脱离并允许扭转弹簧将托架驱动回到行开始位置。 在返回运动结束时，飞轮减速器吸收滑架的动能，然后利用该动能来防止滑架的弹跳。

    Program unit for data editing system
    3.
    发明授权
    Program unit for data editing system 失效
    数据编辑系统程序单元

    公开(公告)号：US3553650A

    公开(公告)日：1971-01-05

    申请号：US3553650D

    申请日：1967-12-04

    申请人： EXTEL CORP

    发明人： ZENNER WALTER J

    IPC分类号： H04L12/18 ,  G06F9/02

    CPC分类号： H04L12/1804

    摘要： AN INTERCHANGEABLE PROGRAM UNIT FOR A DATA EDITING SYSTEM USING A CONVENTIONAL MULTI-LEVEL DATA CODE, INCLUDING A PREDETERMINED NUMBER OF PARALLEL ENERGIZING CIRCUITS FOR ENERGIZING AN OUTPUT CONTROL DEVICE. IN EACH ENERGIZING CIRCUIT THERE ARE A PLURALITY OF ELECTRICAL CONNECTOR MEMBERS EACH PROVIDED WITH THREE INDIVIDUAL ELECTRICAL CONNECTOR ELEMENTS FOR EACH CODE LEVEL WITH TWO OF THE CONNECTOR ELEMENTS INDIVIDUALLY CONNECTED TO A SWITCH AND THE REMAINING ELECTRICAL CONNECTOR ELEMENT CONNECTED TO A CONDUCTOR THAT IS IN SERIES WITH THE ENERGIZING CIRCUIT. EACH CONNECTOR UNIT HOLDS A REMOVABLE PRINTED CIRCUIT PROGRAM CARD THAT ENCODES THE CONNECTOR UNIT IN ACCORDANCE WITH THE CODE FOR A PARTICULAR IDENTIFYING CHARACTER BY SELECTIVELY CONNECTING THE INDIVIDUAL ELECTRICAL CONNECTOR ELEMENTS TO THE SWITCH. THE PROGRAM MEMBER ALSO INCLUDES A SIMPLE SERIES CONNECTION FOR TWO EXTRA CONNECTOR ELEMENTS USED TO PREVENT COMPLETION OF THE ENERGIZING CIRCUIT WHEN THERE IS NO PROGRAM CARD PRESENT.