LEVER MECHANISM OF A TURBINE SAFETY CUTOFF

Mounted in a transverse hole of turbine shaft 1 is weight 2 whose centre of gravity does not coincide with the turbine shaft axis. Weight 2 is subject to centrifugal force and to the action of spring 3 which holds it against stop a. If the speed of the turbine exceeds the preset value, centrifugal force overcomes the resistance of spring 3 and weight 2 extends from shaft 1 so that it strikes lever…