Multi-blade ditching machine

Details Multi-blade ditching machine Multi-blade ditching machine

1979-11-05

1982-01-26

Crowder, Clifford D.

Excavating

Ditcher

Wheel excavator

37 54, 405159, E02F 502

Patent

active

043121446

ABSTRACT:
A ditching machine for digging a ditch or a trench for submarine cables having at least several plurality pairs of blades disposed along the longitudinal direction of the center body of the machine. At least the blades in the forward position have a ditching portion which ditches soil, and a soil-pushing portion which pushes away the soil thus ditched substantially and horizontally in a direction lateral to the moving direction of the ditching machine. Said soil-pushing portion is at the top of said ditching portion and has a wider horizontal width as seen from front of the ditching machine than that of said ditching portion when the ditching machine is in a normal operating position. Further, at least a part of the edge of the pair of extreme ends of said soil-pushing portion are cut slantwise so that the pair of said edges of each blade open upwardly, and said center body has a plurality of small holes at the bottom of the same towards the back portion of each blade, thus, the soil ditched from the trench does not drop back down into the trench, then the towing tension of the towing wire between the ditching machine and the work ship is considerably reduced.

REFERENCES:
patent: 2358495 (1944-09-01), Pace
patent: 2569556 (1951-10-01), Collins et al.
patent: 2667710 (1954-02-01), Settlemire
patent: 3190368 (1965-06-01), Van der Lely
patent: 4053998 (1977-10-01), Ezoe
patent: 4102407 (1978-07-01), Danszky et al.

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