Ripping attachment for dragline

Details Ripping attachment for dragline Ripping attachment for dragline

1980-03-24

1982-05-18

Eickholt, E. H.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

371175, 37DIG3, E02F 376

Patent

active

043297943

ABSTRACT:
The invention concerns an earth ripping attachment which can be mounted on the bucket of a dragline and used to break through cap rock, frozen earth, or other difficult to dig overburden. The device has a base adapted to fit against the underside of the bucket. An upwardly folded lip at one end of the base receives and engages the digging edge of the bucket, while means provided at the other end connects to the bucket hoist rigging to secure the attachment in place. One or more ripper teeth are spaced below the base and point in the drag direction. With this attachment the full drag force of the dragline and the weight of the bucket are utilized in the ripping operation.

REFERENCES:
patent: 1245118 (1917-10-01), Moore
patent: 1560895 (1925-11-01), Crowe
patent: 1659768 (1928-02-01), Dietrich
patent: 1719576 (1929-07-01), Voit
patent: 2482320 (1949-09-01), Clemmer
patent: 2840931 (1958-07-01), Appel
patent: 3039210 (1962-06-01), Slaughter
patent: 3061123 (1962-10-01), Rogers
patent: 3307277 (1967-03-01), Kondracki
patent: 3430703 (1969-03-01), Richey
patent: 3596996 (1971-08-01), Carter
patent: 3702712 (1972-11-01), Cairns
patent: 3724899 (1973-04-01), Clark
patent: 4279085 (1981-07-01), Arnold

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