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1. 发明授权

US3711953A Axonometric drawing aid 失效
标题翻译： AXONOMETRIC绘图辅助
公开(公告)号：US3711953A
公开(公告)日：1973-01-23
申请号：US3711953D
申请日：1970-06-15
申请人： CHANDRONNAIT A
发明人： CHANDRONNAIT A
IPC分类号： B43L13/14
CPC分类号： B43L13/141
摘要： A slide rule aid or calculator for making axonometric drawings includes a scale with a slide having apertures or windows each of which aligns with a different row of numbers on the scale. The rows identify the angles of axis lines in the drawing, the relative lengths of the edges of a unit cube in the drawing and the ellipse templates to be used for drawing circles in the drawing. At each position of the slide along the scale, a different set of axis line angles, relative lengths of edges of a unit cube and ellipse templates are revealed in the apertures. The calculator may be used in conjunction with and may be part of a straight edge equipped with pivoting arms and a vertical arm to which scales selected from a bank of scales are removably attached and which are used for measuring distances along the axis line angles in the drawing. This provides a combined calculator and drawing instrument.
摘要翻译：用于制作轴测图的滑动规则辅助器或计算器包括具有滑动件的刻度，所述滑块具有孔或窗，每个孔或窗口与刻度尺上的不同数目的排列对准。行标识图中轴线的角度，图中单位立方体的边缘的相对长度以及用于绘制图形中的圆的椭圆模板。在滑块的沿着刻度的每个位置处，在孔中露出不同的轴线角度，单位立方体和椭圆形模板的相对边缘长度。计算器可以结合使用并且可以是配备有枢转臂和垂直臂的直边的一部分，垂直臂可选择从一组鳞片可拆卸地附接的鳞片，并且用于测量沿着轴线的角度的距离画画。这提供了一个组合的计算器和绘图仪器。

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