Angle measurement device for measuring, marking, scribing, cutting etc. has a base rail with a pivoting rail extending from it that can be set to a chosen angle and slid to any position along the base rail

摘要

Device comprises a linear base rail and a pivoting projecting rail that can be locked in position at a chosen angle. The base rail (1) has a longitudinal guide for moving the projecting rail (5) along it. The guide on the projecting rail comprises grooves that accommodate matching tongues on the base rail.