Torsion Apparatus Vertical
It consists of a heavy mild steel frame mounted on a heavy trileg cast iron base..
Upper end of the rod 900 mm length and 5 mm dia under test is clamped by a 3-jaw chuck and the lower end is clamped, into the axis of a torsion couple three metal circular scales graduated in single degrees which are free to slide on one of the graduated rod can be clamped at any position. Three pointers for clamping to the test rod are provided. Strings to apply the deflecting couple and having pans at their free and pass over bearing pulleys which are clamped to the uprights without weights