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公开(公告)号:US5933974A
公开(公告)日:1999-08-10
申请号:US864102
申请日:1997-05-28
Applicant: Larry R. Walters , Tim Balas
Inventor: Larry R. Walters , Tim Balas
CPC classification number: G01B3/566 , E04G21/1808 , G01C15/10
Abstract: A carpenter's square having a first and second leg at right angles to each other, and a third leg extending between the first and second legs. A magnetic strip on the first leg for attaching the tool to a metallic surface to be plumbed. A first notch in the third leg a first distance from the first leg and a second notch in the third leg a second distance from the first leg so that a plumb string can be threaded through the first and second notches and thereby held in place to support a plumb bob to allow a plumb reading to be taken without the need for manually supporting the plumb bob.
Abstract translation: 具有彼此成直角的第一和第二腿的木匠的正方形,以及在第一和第二腿之间延伸的第三腿。 在第一腿上的磁条用于将工具附接到金属表面以被铅垂。 第三腿部中的第一切口与第一腿部成第一距离,并且第三腿部中的第二切口与第一腿部成第二距离,使得铅垂杆可以穿过第一和第二切口并由此保持在适当位置以支撑 一个铅锤,允许进行铅笔阅读,而不需要手动支撑铅锤。