Dredge swell compensator apparatus

Details Dredge swell compensator apparatus Dredge swell compensator apparatus

1979-09-10

1981-09-29

Crowder, Clifford D.

Excavating

Peat excavators

37 72, E02F 388, E02F 390

Patent

active

042914744

ABSTRACT:
An apparatus for maintaining a uniform grade of the surface being excavated or leveled by a waterborne dredge. The apparatus includes a shore mounted laser that projects a horizontal beam which is utilized to establish a reference plane, a dredge mounted photo receiver responsive to the beam from said shore mounted laser, a hydraulic system for repositioning the dredge cutter in response to changes of position of the dredge relative to the reference plane established by the laser beam. The hydraulic system includes a specifically designed pulley arrangement which raises and lowers the dredge ladder to maintain the cutter at a constant elevation.

REFERENCES:
patent: 3151686 (1964-10-01), Kammerer
patent: 3452207 (1969-06-01), Tsukkerman
patent: 3462845 (1969-08-01), Matthews
patent: 3512281 (1970-05-01), Hadjidakis
patent: 3797139 (1974-03-01), Larralde
patent: 3841607 (1974-10-01), Larralde et al.
patent: 3887012 (1975-06-01), Scholl et al.
patent: 4179233 (1979-12-01), Bromell et al.

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