Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1987-03-09
1989-07-04
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Machine
166 775, 175 85, B25B 1350
Patent
active
048439452
ABSTRACT:
An apparatus for making and breaking threaded well pipe connections has a stationary support mountable on a rig floor and positioning arms mounted on the stationary support. The positioning arms selectively support and position a movable frame which carries power tongs for clamping pipes. By operation of the positioning arms, the power tongs can be operatively disposed to act on a pipe at the well center, positioned in a stowed position or disposed in a mousehole position to act on a pipe in the mousehole.
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National-Oilwell
Smith James G.
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