Dragging type cutter head for a suction dredger

Details Dragging type cutter head for a suction dredger Dragging type cutter head for a suction dredger

1979-03-02

1981-03-17

Crowder, Clifford D.

Excavating

Peat excavators

37 58, E02F 388

Patent

active

042558824

ABSTRACT:
A dragging type suction head for a suction dredger having a suction tube which extends downwardly and rearwardly from a vessel at the lower end of which the suction head is mounted. In this suction head, enclosed by a housing which at least at a rear side leaves free an entrance opening, a cutter is mounted rotating in a direction opposite the direction of dredging, said cutter being a cylindrical body with cutting blades at its circumference which blades feed immediately into an intake section connected to the suction tube. Between the inner edges of the cutting blades and a cylindrical drum, space is provided to allow for a passage through which water can flow. The blades are mounted between discs that have sharp cutting edges.

REFERENCES:
patent: 411183 (1889-09-01), Bowers
patent: 826993 (1906-07-01), Coiseaa
patent: 1106038 (1914-08-01), Fruhling
patent: 1701280 (1929-02-01), Sorensen
patent: 2999324 (1961-09-01), Ohlhausen
patent: 3171220 (1965-03-01), Schram
patent: 4083134 (1978-04-01), Oterdoom

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