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21. 发明授权

US3586150A Tabulator safety apparatus 失效
标题翻译：仪表安全装置
公开(公告)号：US3586150A
公开(公告)日：1971-06-22
申请号：US3586150D
申请日：1968-10-31
申请人： FACIT HALDA AB
发明人： HOLTKLINT IVAR
IPC分类号： B41J21/14 , B41J21/04
CPC分类号： B41J21/14
摘要： A tabulator safety apparatus for use with typewriters, calculating machines, accounting machines or the like having a movable motor operated carriage, to prevent the movable carriage from being halted when the tabulator set key is depressed during carriage travel or when the tabulator key is depressed during the return travel of the carriage including a holder having at least one tabulation stop member disposed therein or coacting with a tabulator stop in stopping position, said holder being movable against a spring in a carriage return direction, said stop member being movable between an position and a nonoperative position, a link mechanism cooperating with said holder and transferring said holder movement to said stop member whereby said holder movement in said carriage return direction moves said stop member to said nonoperative position, and a swinging arc having a setting stud for said tabulator stops for engaging said tabulator stops, said stud being laterally moveable against the action of at least one return spring and cooperating with recesses and guide pins to transform the lateral movement of said tabulator stop into a movement disengaging said stud from said tabulator stop.

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