Improvements in or relating to a trench digging machine having a rotatable, bucket-equipped digging wheel

摘要

1,046,636. Bucket wheel excavators. L. A. McAULEY. Nov. 4, 1964 [Nov. 8, 1963], No. 44231/63. Heading E1F. In a bucket wheel excavator each digging bucket is provided with individual and automatically operated ejection means for ensuring positive discharge of the contents of the bucket during its cyclic travel. The means involves various arrangements of ejector plates pivoted within the buckets and stationary means for causing pivoting of the plates relative to the buckets.