Full Specification ( Tortion Apparatus Vertical Type ):

Upper end of the rod under test is held in a centering chuck and the lower end is clamped into the axis if a tortion drum which can be rotated by putting load in the scale pan passing over two frictionless pulleys. Freely sliding three circular scales graduated in single degrees can be clamped at any position. Three pointers for clamping to the test rod are provided. Complete with two test rods, strings and two scale pans, but without weights.