Apparatus for confirming right angles at corners of a rectangular structure with a tape measure

摘要

An apparatus and its method of use with a conventional tape measure confirms right angles of the corners of a rectangular structure. The apparatus is a two-part tool including a tape measure tab part and a tape measure tape part. The tab part secures a tape measure tab at one corner of the rectangular structure as the tape measure tape is pulled from the tape measure housing diagonally across the structure. The tape part of the apparatus is secured to the diagonally opposite corner of the structure and is used to check the diagonal distance measurement of the tape across the structure. The process is then again performed between the other diagonally opposite corners of the structure to obtain a diagonal distance measurement across the other corners to determine if the two diagonal measurements match and confirm the right angles of the rectangular structure.

主权项

1. An apparatus for confirming right angles at corners of a rectangular structure with a tape measure, the apparatus comprising:
a tab part having opposite top and bottom surfaces; a first side surface projecting outwardly from the tab part bottom surface; a second side surface projecting outwardly from the tab part bottom surface, the first and second side surfaces being relatively positioned defining an angle between the first and second side surfaces; an edge surface projecting outwardly from the tab part top surface, the edge surface being dimensioned to be engaged by a tab of a tape measure; a tape part that is separate from the tab part, the tape part having opposite top and bottom surfaces; a first side surface projecting outwardly from the tape part bottom surface; a second side surface projecting outwardly from the tape part bottom surface, the first and second side surfaces being relatively positioned defining an angle between the first and second side surfaces; and an indicator on the tape part top surface, the indicator being positioned to align with a tape of a tape measure when a tab of the tape measure is engaged against the edge surface of the tape part and the tape of the tape measure is extended from the tab part and across the top surface of the tape part and is positioned adjacent the indicator, whereby the indicator aligning with the side of the tape indicates a distance measurement on the tape between the edge surface of the tab part and the indicator of the tape part.