Adjustable dredging and trenching apparatus

Details Adjustable dredging and trenching apparatus Adjustable dredging and trenching apparatus

1975-11-03

1978-02-14

Crowder, Clifford D.

Excavating

Peat excavators

37 73, 114294, E02F 300

Patent

active

040730786

ABSTRACT:
A stowable agitation trenching apparatus for use on a vessel such as a dredge or barge includes an adjustable, vertically extendable and retractable elongate leg slidably disposed within a mounting bracket pivotally secured to the vessel for selectively disposing a distal end of the leg at a plurality of positions underneath the vessel. An agitation producing propeller is disposed adjacent to the distal end and is movable therewith for producing an eroding current of water against the bottom surface of a body of water to be trenched or dug. The vertically extendable and retractable elongate leg is arranged to be raised and pivoted in the mounting for substantially horizontal stowage on the vessel.

REFERENCES:
patent: 142577 (1873-09-01), Morse
patent: 261587 (1882-07-01), Cram
patent: 328095 (1885-10-01), Walsh
patent: 471108 (1892-03-01), Duryee
patent: 799256 (1905-09-01), Parker
patent: 1019610 (1912-03-01), Donnelly
patent: 1587187 (1926-06-01), Schmutte
patent: 1962363 (1934-06-01), Reimel et al.
patent: 2361404 (1944-10-01), Kalix
patent: 3187447 (1965-06-01), Hollyoak
patent: 3218739 (1965-11-01), Kaufmann et al.
patent: 3470633 (1969-10-01), Soehnlen

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