Suction pipe position control

Details Suction pipe position control Suction pipe position control

1978-04-21

1981-01-06

Crowder, Clifford D.

Excavating

Peat excavators

37 72, 37195, 37DIG1, 37DIG19, E02F 388

Patent

active

042428157

ABSTRACT:
Method and apparatus for controlling the position of the last section of a suction pipe with a drag head, wherein the suction pipe comprises at least two pivotally connected sections and wherein there are provided at least two independently operable hoisting winches for the suction pipe and wherein the hoisting installations are operated so that the last section of the suction pipe with drag head is kept at a specific, pre-determined angle of inclination.

REFERENCES:
patent: 2534917 (1950-12-01), King
patent: 3512281 (1970-05-01), Hadjidakis
patent: 3514881 (1970-06-01), Hadjidakis
patent: 3589040 (1971-06-01), DeKoning et al.
patent: 3624932 (1971-12-01), Doyle
patent: 3645018 (1972-02-01), DeKoning et al.
patent: 3734564 (1973-05-01), McKay et al.
patent: 3739503 (1973-06-01), Barker et al.
patent: 4108499 (1978-08-01), Sandberg

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