Excavating – Ditcher – Wheel excavator
Patent
1987-03-30
1988-11-22
Wiecking, David A.
Excavating
Ditcher
Wheel excavator
37189, 172123, 172125, 299 40, 299 74, E02F 508, E02F 324
Patent
active
047855592
ABSTRACT:
The apparatus for making a substantially vertical slot in the ground in a step in making a sealing or supporting wall comprises a frame member, a supporting shield, at least two cutting wheels and a drive unit. The supporting shield is attached to the frame member and supports the cutting wheels and the drive unit. The cutting wheels are mounted on a common shaft and at least a portion of the drive unit is enclosed by at least one of the cutting wheels. A housing projecting pipe like on both of its opposing sides is attached to the supporting shield. Each of the cutting wheels have a hub which is mounted on a common shaft mounted in the housing. A hollow drive wheel is provided for the cutting wheels and is mounted advantageously on a stepped in seat on one of the hubs. It fits in the housing with play. The hollow drive wheel meshes with a plurality of drive gears each connected to a drive motor. The drive motors are distributed around the circumference of the hollow drive wheel supported on a drive motor support inserted in the housing.
REFERENCES:
patent: 3933053 (1976-01-01), Bartels
patent: 4030217 (1977-06-01), Satterwhite
patent: 4662684 (1987-05-01), Marten
Dubno Herbert
Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann
McDaniel James R.
Wiecking David A.
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