Overview Of Position. Founded in 1892, by Frank Osborn who authored the popular engineering handbook Osborn’s Tables of Moments of Inertia and Squares of Radii of Gyration , which featured working strengths of steel members, timber beams and columns, and standard loads, unit stresses and constants for a variety of structures. The book quickly became a much-used industry text, the forerunner to today’s popular AISC Steel Construction Manual. Join ...