Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent
1992-10-01
1995-03-14
Taylor, Dennis L.
Boring or penetrating the earth
With tool drive prime mover or above-ground mechanical...
Rotary drive for a relatively advancing tool
173 42, 173 44, 175162, 405232, E21B 304
Patent
active
053969642
ABSTRACT:
An apparatus for processing soil in a subterranean earth situs. The apparatus includes a parallelogram spotter or positioning portion with a drilling table support portion connected thereto. A rotary drilling table is mounted on the drilling table support portion. Relative movement is provided between the support portion and the positioning portion in a plurality of planes. A pivotation portion is disposed between the support portion and the positioning portion and pivotally connected thereto. Hydraulic cylinders are provided to shift the apparatus about a vertical axis, to move the drilling table support portion in a longitudinal direction, to tilt the pivotation portion and support portion about a horizontal axis and to tip the support portion with respect to the pivotation portion about a longitudinal axis. A table elevation winch is mounted on the support portion and has a table elevation cable extending therefrom which is engaged with a pulley connected to the support portion. A servo system is provided to sense angular displacement of the cable with respect to the pulley and to actuate the hydraulic cylinders to compensate for this angular displacement. Several soil processor embodiments are disclosed, as are methods of use.
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Cole Clinton W.
Gibbs Max A.
Shellhorn Verne L.
Halliburton Company
Kennedy Neal
Kent Robert A.
Taylor Dennis L.
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