Twist and Shout: Lehigh University Cheers On Nearly Half-Century Trouble-Free Run of 1965 Tinius Olsen Torsion Testing Machine HORSHAM, PA--(Marketwired - Dec 3, 2013) -  A torsion tester is a machine that twists a material specimen, such as an iron bar, to measure ultimate torque, but also continuous or intermittent...