Earth boring machine and method

Details Earth boring machine and method Earth boring machine and method

1980-08-28

1983-09-13

Pate, III, William F.

Boring or penetrating the earth

Automatic control

175 45, 175 62, 175 73, 299 1, 299 30, E21B 4400

Patent

active

044036647

ABSTRACT:
An earth boring machine and method are disclosed. An above-ground reference line, such as a laser beam, is established for a hole to be bored. The direction of the reference line is detected. The direction of a cutting head of the boring machine in a bore hole is detected and signals of the detected direction are transmitted to a control unit for comparison with the reference line direction. The boring machine is controlled with, for example, cam actuated adjustable peripheral cutters on the cutting head so that the direction of the boring machine can be adjusted to that of the reference line.

REFERENCES:
patent: 3554302 (1971-01-01), Adkins
patent: 3712391 (1973-01-01), Coye
patent: 3857449 (1974-12-01), Kimic
patent: 4014574 (1977-03-01), Todd
patent: 4026371 (1977-05-01), Takada et al.
patent: 4113036 (1978-09-01), Stout
patent: 4181360 (1980-01-01), Wilson

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