Excavator with a clamshell bucket having magnified vertical...

E - Fixed Constructions – 02 – F

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294/20

E02F 9/20 (2006.01) B66C 3/12 (2006.01) E02F 3/47 (2006.01)

Patent

CA 1120076

AN EXCAVATOR WITH A CLAMSHELL BUCKET HAVING MAGNIFIED VERTICAL STROKE ABSTRACT OF THE DISCLOSURE An excavator having a base structure, a boom pivotally supported at its lower end by the base structure, an arm pivotally supported near its root end by the upper end of the boom, and a clamshell bucket suspended from the tip end of the arm by pulley and rope systems extended along the arm and the boom so as to provide more parts of the ropes to the parts extended between the tip end of the arm and the bucket as the boom is more inclined downward.

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