Abstract: A rotary drum cutting head (40) has pair of rotary drums (16, 18) which present a plurality of cutting implements (42) adapted for milling rock or other excavatable terrain, and a hydraulic motor (46) centrally disposed between the pair of rotary drums (16, 18). The hydraulic motor (46) has a rotatable output shaft (50) to which the drums (16, 18) arm rigidly and directly connected at opposed driven ends (83) of the shaft (50) the opposed driven ends (83) extending in opposite directions from the hydraulic motor (46) in longitudinal alignment with the rotational axis (20) of the rotary drum (16, 18) and rotatably supporting the rotary drums (16, 18).
August 21, 2001
Date of Patent:
September 30, 2003
RN Cribb Pty Limited
Robert W. Cribb, Norman R. Cribb, David G. Slade