Patent ID: 8096776

Claim:
A turbine blade assembly, comprising: a turbine disc with a rotor blade inserted into a notch of the turbine disc; and a locking plate, placed inside a plurality of circular grooves with a plurality of rims located in both the turbine disc and in the rotor blade, wherein an edge of the locking plate that is oriented towards a center of the turbine disc is castellated by providing a plurality of teeth, wherein a part of a rim of the circular groove of the turbine disc is also castellated by providing a plurality of gaps and in that the plurality of gaps of the rim match the plurality of teeth of the locking plate, wherein the locking plate is sprung and thereby is engaged and further comprises a bent portion which is located at or near the castellated edge and/or the bent portion is located at or near an edge lying opposite to the castellated edge, the bent portion extending into the plurality of teeth.