Patent ID: 6964112

Claim:
A device for measuring and marking lines and points on I-beams; comprising: (a) a flange-contacting portion for contacting the flange of an I-beam to be marked, and for defining a line parallel to the flange where the flange intersects the web of the beam; (b) a flat measuring blade for measuring distances from said flange-contacting portion along the web of the beam, wherein said flat measuring blade is not “T-shaped”; and (c) a bridging portion for connecting said measuring blade portion to said flange-contacting portion by bridging the beam flange, wherein said bridging portion terminates at one end in a blade-locking mechanism, wherein said blade-locking mechanism comprises two slotted gripping members that can be pulled together by the advancement of a nut on a threaded shank to lockingly secure said flat measuring blade therein, said blade-locking mechanism being perpendicular to said flange-contacting portion so that when said blade-locking mechanism is in its locked position the slotted gripping members secure said flat measuring blade in a position such that the measuring blade is perpendicular to a line parallel to the flange; wherein said flange-contacting portion extends in both directions along the line where the flange intersects the web of the beam, relative to the position of the measuring blade.