公开(公告)号：US06427344B1

公开(公告)日：2002-08-06

申请号：US09366479

申请日：1999-08-03

申请人： Philip Forrest Smith ,  Miles Wills

发明人： Philip Forrest Smith ,  Miles Wills

IPC分类号： B43L904

CPC分类号： B43L9/007

摘要： A drawing compass including a body having a pivot point and a longitudinal slot formed therein, the longitudinal slot defining a first inner surface. The drawing compass further includes a carriage received in and movable along the longitudinal slot. The carriage has a guide to receive a writing instrument therethrough and a movable arm biased against the first inner surface. The compass also includes means for releasably coupling the arm to the body.

摘要翻译： 包括具有形成在其中的枢轴点和纵向槽的主体的绘图罗盘，所述纵向狭槽限定第一内表面。 绘图罗盘还包括容纳在纵向槽中并可沿着纵向槽移动的滑架。 滑架具有用于接收通过其中的书写工具的引导件和抵靠第一内表面偏置的可移动臂。 指南针还包括用于将臂可释放地联接到身体的装置。