METHOD FOR MEASURING PERPENDICULAR OF POLE CONSTRUCTION COLUMN AND PERPENDICULAR TOOL OF POLE CONSTRUCTION COLUMN

摘要

PURPOSE: To dispense with correction operation and to measure a grade of perpendicular by only attaching the title tool to a pole. ;CONSTITUTION: By taking both of the side faces corresponding to a diameter position of an arbitrary height of a column as front faces, inclination angles between the side faces and one of the side faces at a diameter position perpendicular to the above diameter position are measured by means of a level 10 by which light and left inclination angles are measured without being affected by an inclination of back and forth direction. The title tool comprises a pair of fixing arms 1 that nips both of the faces corresponding to the diameter position of a column, a connection body 2 that connects the fixing arms 1 with each other in such a manner that an interval thereof is adjustable and a pair of the levels 10 by which the light and left inclination angles are measured without being affected by the inclination of back and forth direction. The levels 10 are arranged such that the front face faces in the right angle direction with respect to a center of the column P.;COPYRIGHT: (C)1996,JPO