公开(公告)号：US3762058A

公开(公告)日：1973-10-02

申请号：US3762058D

申请日：1971-06-14

申请人： HEATER P

发明人： HEATER P

IPC分类号： G01B3/08

CPC分类号： G01B3/08 ,  Y10S16/39 ,  Y10T16/473 ,  Y10T403/32426 ,  Y10T403/7011

摘要： A rod or measuring instrument which has a plurality of telescoping tubes having measuring scales on the periphery of said tubes, means for locking said telescoping tubes at any random length, said locking means including a cut away portion at the inner end of each inside tube of said telescoping tubes and an inclined substantially crescent shaped channel formed in said cut away portion of said tube, and a ball or a roller fitted within said channel which ball or roller is free to roll towards a narrow end of said channel when the tubes are turned, thereby wedging said tubes together; and plugs mounted in the ends of the outer tubes.

摘要翻译： 一种杆或测量仪器，其具有在所述管的周边上具有测量刻度的多个伸缩管，用于以任何随机长度锁定所述伸缩管的装置，所述锁定装置包括在每个内管的内端处的切除部分 所述伸缩管和形成在所述管的所述切除部分中的倾斜的基本上新月形的通道，以及装配在所述通道内的球或滚子，当所述管被转动时，所述球或辊可自由地朝向所述通道的窄端滚动 从而将所述管楔入一起; 以及安装在外管末端的塞子。