Instrument for drawing ellipses

椭圆规

  • Inventors: CAO JIAN
  • Assignees: 曹坚
  • Publication Date: August 25, 1993
  • Publication Number: CN-2140834-Y

Abstract

一种绘制椭圆的工具——椭圆规。它主要是由 二定杆,一动杆及一个滑动套组成。使用该椭圆规, 只要知道椭圆长短轴,就能在指定位置上迅速、准确 的作出该椭圆。
The utility model relates to an ellipsograph as a tool for drawing ellipses, mainly comprising two fixed bars, a movable bar and a slip cap. With the ellipsograph, an ellipse can be rapidly and accurately drawn so long as the semi-major axis and the semi-minor axis of the ellipse get known.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle