Derrick mounted apparatus for the manipulation of pipe

Details Derrick mounted apparatus for the manipulation of pipe Derrick mounted apparatus for the manipulation of pipe

1974-11-14

1978-03-07

Hoffman, Drayton E.

Boring or penetrating the earth

Below-ground impact members

With releasable means to detachably retain telescoping...

175 85, 214 1BC, 214 1P, E21B 1914

Patent

active

040775259

ABSTRACT:
Derrick mounted apparatus for the manipulation of lengths of pipe in or out of one or more finger boards in proximity thereto comprising a pipe manipulating arm adapted to move along a single predetermined line and a pipe gripping hand rotatably attached to one end of the pipe manipulating arm, the pipe gripping hand being capable of accepting and discharging pipe in an angular direction with respect to the line of movement of the arm.

REFERENCES:
patent: 3212649 (1965-10-01), Johnson
patent: 3840128 (1974-10-01), Swoboda
patent: 3888362 (1975-06-01), Fletcher

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