Excavating – Peat excavators
Patent
1978-01-12
1979-11-13
Crowder, Clifford D.
Excavating
Peat excavators
37 91, 37DIG1, 172 3, 299 1, 299 41, E02F 504
Patent
active
041738365
ABSTRACT:
A trench excavator has a raisable and lowerable boom swingable about a vertical axis on the self-propelled chassis which is mounted on tracks. The boom carries a cutting head which is swingable about a horizontal axis at the free end of the boom so that the excavator tool can be inclined downwardly toward the chassis. According to the invention, the inclination of the cutting head is measured and the measurement is used to control the drive for the track.
REFERENCES:
patent: 3354660 (1967-11-01), Vaughan
Crowder Clifford D.
Ross Karl F.
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