Drag head for a hopper suction dredge

Details Drag head for a hopper suction dredge Drag head for a hopper suction dredge

1982-04-15

1983-08-30

Crowder, Clifford D.

Excavating

Peat excavators

E02F 388

Patent

active

044008953

ABSTRACT:
Drag head for a hopper suction dredge, which drag head has a suction opening in the dragging direction, defined by side walls and a rear wall. The lower edges of these walls are positioned in one plane whereby the rear edge is positioned lower then the upper edge of the inlet opening with respect to a vertical cross sectional plane parallel to the dredging direction. The side edges and the rear edge are positioned in an essentially horizontal plane. The rear wall of the drag head extends upwards along a compound bent line such that the tangent of this line at the height of a horizontal plane through the upper edge of the inlet opening is inclined forwards at an acute angle.

REFERENCES:
patent: 4083134 (1978-04-01), Oterdoom
Konstruktion, vol. 16, 1964, No. 11 (Berlin) by W. Witt: "Entwicklung neuer Schleppesaugkopfe fur selbstfahrende Laderaumsaugbagger" blz. 461-470, blz. 466, col. 2, paragraphs 2 & 3, FIG. 20.

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