Mining machine conveyor with deflectible boom

摘要

A mobile mining machine having an elevatable conveyor boom with a vertically deflectible end section. The end section of the boom is connected to the main section of the boom by a pivoted connection to provide relative vertical tilting movement. Stacks of leaf springs fastened flatwise to upper and lower surfaces of the boom side rails at the pivoted connection normally hold the end section in a working position aligned with the main section but enable vertical deflection of the end section when an abnormal and possibly destructive force is applied to the end of the boom.