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11. 发明授权

US3657820A Device for preparing perspective views from orthogonal views 失效
标题翻译：从正交视图准备视角的设备
公开(公告)号：US3657820A
公开(公告)日：1972-04-25
申请号：US3657820D
申请日：1970-04-01
申请人： DIRK VERMEULEN
发明人： VERMEULEN DIRK
IPC分类号： B43L13/14 , B43L13/00
CPC分类号： B43L13/147
摘要： The device comprises a flat base plate, a drawing board at substantially right angles to the base plate, a guide rod having one end universally pivotally connected to a mounting in a tracing instrument carrying a tracing index located adjacent to the base plate, the mounting being adjustable in the tracing instrument in a direction perpendicular to the base plate, a shaft rotatable on a fixed axis extending parallel to the base plate, a universal joint on one end of the shaft in which the guide rod is slidably mounted, and a universal joint connecting the other end of the shaft to a rod extending parallel to the guide rod and having an end provided with a stylus for marking on the drawing board, the two rods being pivoted to the two ends of a coupling rod extending parallel to the shaft.
摘要翻译：该装置包括平底板，与基板基本成直角的拉伸板，导向杆，其一端通用地枢转地连接到携带着与基板相邻的跟踪指示器的跟踪仪器中的安装件，该安装件可跟踪仪器在垂直于基板的方向上可调节，可在平行于基板延伸的固定轴上旋转的轴，导杆一端可滑动地安装在其上的万向节，以及万向接头将所述轴的另一端连接到平行于所述导杆延伸的杆，并且具有设置有用于在所述绘图板上标记的触针的端部，所述两个杆枢转到平行于所述轴延伸的连接杆的两端。

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