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发明名称
二次曲线作图仪
摘要
一种二次曲线作图仪,其旋转尺在中垂线尺、马斯诺螺杆与刻度尺之下,马斯诺螺杆在中垂线尺与刻度尺之上;中垂线尺与刻度尺平行,中垂线尺和刻度尺分别通过各自的连接器垂直套接在螺杆上,旋转尺的一端与刻度尺铰接,另一端与螺杆的一端通过连接器套接,中垂线尺与旋转尺通过连接器连接,该连接器下面垂直固接有作图针;螺杆尺上设有两条螺纹线,其中一条螺纹是另一条螺距的两倍,其宽度也为其两倍,而深度相等;中垂线尺和刻度尺均为滑槽杆;刻度尺和旋转尺上标有刻度。
申请公布号
CN2305296Y
申请公布日期
1999.01.27
申请号
CN97250565.2
申请日期
1997.08.08
申请人
李伍波
发明人
李伍波
分类号
B43L11/00;B43L11/055
主分类号
B43L11/00
代理机构
代理人
主权项
1、一种二次曲线作图仪,其特征在于:它由旋转尺、马斯诺螺杆、中垂线尺、刻度尺以及各自的连接器所组成;其中旋转尺在中垂线尺、马斯诺螺杆与刻度尺之下,马斯诺螺杆在中垂线尺与刻度尺之上;中垂线尺与刻度尺平行,中垂线尺和刻度尺分别通过各自的连接器垂直套接在螺杆上,旋转尺的一端与刻度尺铰接,另一端与螺杆的一端通过连接器套接,中垂线尺与旋转尺通过连接器连接,该连接器下面垂直固接有作图针;螺杆尺上设有两条螺纹线,其中一条螺纹是另一条螺距的两倍,其宽度也为其两倍,而深度相等;中垂线尺和刻度尺均为滑槽杆;刻度尺和旋转尺上标有刻度。
地址
817303青海省大柴旦锡铁山中国有色金属工业总公司锡铁山矿务局
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