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公开(公告)号：US4022312A
公开(公告)日：1977-05-10
申请号：US644255
申请日：1975-12-24
CPC分类号： B41J21/08
摘要： Disclosed is a control mechanism and device for conditioning a typewriter to backspace on every other depression of a keylever and at the same time to prevent printing on all depressions of keylevers. Additionally, the typewriter is conditioned to not print on those cycles in which a backspace movement is not included.This control mechanism and system allows the typist to key headings and other materials which would normally be centered in a no print mode and upon the completion of keying the entry once and switching into a normal typing mode, the typewriter is properly positioned with respect to the page for immediate rekeying of the heading or entry to provide centered copy.
摘要翻译： 公开了一种控制机构和装置，用于将打字机调节到键盘上每隔一个按压的退格位置，同时防止在所有凹陷处的打印机上打印。 此外，打字机被调节为不在不包括退格运动的那些周期上打印。
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公开(公告)号：US3977510A
公开(公告)日：1976-08-31
申请号：US589726
申请日：1975-06-23
申请人： Edwin J. Hurley
发明人： Edwin J. Hurley
摘要： A method and mechanism for automatically performing typewriter functions such as backspacing and disabling the escapement mechanism of a typewriter. A ribbon cartridge carrying actuating abutments is inserted into the typewriter whereupon the abutments engage a mechanism to actuate a selected function as for example the backspace mechanism and also engage another mechanism to disable the escapement mechanism. Particularly adaptable to correcting typing errors, the present invention will minimize the manipulations now necessary to perform an error correcting operation. Having typed an erroneous character, the operator simply inserts a ribbon cartridge containing the actuating abutments. One of the abutments contacts an actuating mechanism within the typewriter to backspace the carriage. The second abutment contacts a second actuating mechanism within the typewriter to disable the escapement mechanism to prevent carriage movement during error correction or until the ribbon cartridge is removed. Other selected typewriter functions can also be actuated by cartridge insertion.
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公开(公告)号：US3976182A
公开(公告)日：1976-08-24
申请号：US589728
申请日：1975-06-23
申请人： Samuel D. Cappotto
发明人： Samuel D. Cappotto
摘要： A method and mechanism for automatically performing typewriter functions such as backspacing a carriage. The backspace mechanism is actuated by the insertion and removal of a ribbon cartridge that is placed on and guided by a ribbon cartridge platform and is especially suited for use in conjunction with the correction of erroneously typed characters.The ribbon cartridge carries a pair of cam surfaces that engage a pair of typewriter backspace coupled cam surfaces to actuate a backspace function upon insertion and again upon removal of the ribbon cartridge. Therefore, automatic multiple backspacing of the typewriter carriage occurs when performing an error correcting operation simply by inserting and removing a correction ribbon cartridge.Although a backspace function has been selected for purposes of demonstration, the hereafter disclosed embodiment may be utilized to actuate other typewriter functions upon the insertion and removal of the ribbon cartridge.
摘要翻译： 一种自动执行打字机功能的方法和机制，例如回车。 通过插入和移除放置在色带盒平台上并由色带盒平台引导的色带盒来驱动退格空间机构，并且特别适用于与错误类型字符的校正一起使用。
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公开(公告)号：US3893561A
公开(公告)日：1975-07-08
申请号：US41834973
申请日：1973-11-23
申请人： IBM
摘要： A pair of stop surfaces carried by a dual pitch escapement rack selectively directly measure half space displacement of the escapement rack in accordance with its selected pitch setting. Motion for half space displacement is derived from a circumferentially symmetrical face cam couple that directly converts input rotary motion into output linear motion of the escapement rack.
摘要翻译： 由双间距擒纵机架承载的一对停止面，根据其选定的俯仰设置选择性地直接测量擒纵机架的半空间位移。 半空间位移的运动是从直接将输入旋转运动转换成擒纵机架的输出线性运动的圆周对称的凸轮对导出的。
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公开(公告)号：US3799316A
公开(公告)日：1974-03-26
申请号：US10269670
申请日：1970-12-30
申请人： IBM
发明人： DAVIDGE R , SCHAEFER J , DAVIS C , OKCUOGLU S
摘要： A mechanism is disclosed for the automatic erasing of typing errors utilizing a fully serialized and automated correction apparatus where the correction is accomplished by a single backspace operation allowing both the erasure of the erroneously typed letter and the typing of the proper letter. The backspace operation repositions the typewriter carriage for the correction of the erroneous letter and at the same time inhibits the escapement of the carriage for a single print cycle allowing the corrected letter to be printed over the correction without requiring an additional backspace operation. The escapement mechanism is re-engaged during the correction cycle so that the carriage advances of the print cycle.
摘要翻译： 公开了一种使用完全序列化和自动校正装置自动擦除打字错误的机制，其中通过单个退格操作来完成校正，允许擦除错误类型的字母和正确字母的打字。 退格操作重新定位打印机托架以纠正错误的字母，并且同时禁止滑架对于单个打印循环的擒纵，从而允许校正字母在校正上打印而不需要额外的退格操作。 擒纵机构在校正周期期间重新接合，使得滑架在打印周期前进。
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26.发明授权Bi directional spacing mechanism for a printer including a proportional spacing printer 失效用于打印机的BI方向间隔机构，包括一个比例间距打印机
公开(公告)号：US3713524A
公开(公告)日：1973-01-30
申请号：US3713524D
申请日：1970-06-30
申请人： IBM
发明人： FORREST J , LITKENHUS J , STEGER D
摘要： A character printing position is displaced by various increments in forward and reverse directions by premeasured motion delivered to a movable letter spacing member through a shuttling control rack. A variable stop member is moved to select the desired amount of spacing movement by arresting the control rack, which is yieldably driven via a spring through a potential stroke during each cycle.
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公开(公告)号：US3618736A
公开(公告)日：1971-11-09
申请号：US3618736D
申请日：1969-12-22
申请人： IBM
摘要： A single-elment printer having a complex drive cam for control of print impact velocity, employs power taken from the print shaft within the type element carrier to perform backspace operations as selected by the velocity control mechanism.
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公开(公告)号：US3455429A
公开(公告)日：1969-07-15
申请号：US3455429D
申请日：1966-06-01
申请人： OLYMPIA WERKE AG
发明人： SCHWEIZER HORST
CPC分类号： B41J19/58
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