Excavating – Rotary digger – Endless conveyor
Patent
1978-05-10
1980-01-01
Eickholt, E. H.
Excavating
Rotary digger
Endless conveyor
198703, E02F 324
Patent
active
041809270
ABSTRACT:
An excavating wheel is disclosed which includes a plurality of digging buckets each comprising a wall supported for pivotal movement between a material receiving position and a material dumping position. A plurality of cylinders each connected to one of the movable walls are selectively actuated under fluid pressure to pivot each movable wall to the material dumping position. A plurality of springs each connected to one of the movable walls are provided to pivot each movable wall to the material receiving position.
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patent: 1760964 (1930-06-01), Ruth
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patent: 1863474 (1932-06-01), Curtis
patent: 3230647 (1966-01-01), Gates
Dorman William S.
Eickholt E. H.
Unit Rig & Equipment Co.
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