Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1992-09-04
1994-10-04
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 5713, 81 5734, 81 5716, 81 5742, B25B 1700
Patent
active
053515820
ABSTRACT:
A tool for turning an elongate pipe is disclosed. The tool comprises a base and a drive wheel mounted for rotation on the base. The drive wheel has a cylindrical outer surface may include a plurality of projections extending radially outward from the outer surface of the first drive wheel. The projections extend past the edge of the base. In use, the projections contact a portion of the outer surface of an elongate pipe and turn the pipe with the rotation of the drive wheel. A guide is also mounted for movement on the base. The guide may be a pair of guide arms pivotally mounted on the base. Each guide arm has a free end and a guide roller is mounted for free rotation at each free end of each guide arm. Each guide arm is pivotable to a position wherein the guide rollers hold the elongate pipe against the projections on the outer surface of the first drive wheel. The guide may also be an L-shaped guide arm with a free leg carrying guide rollers to hold the elongate pipe against the projections on the outer surface of the drive wheel. The drive wheel may be driven by a motor, such as a hydraulic motor.
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Aldridge L. Warren
Snyder Edwin
Aldridge Electric Inc.
Smith James G.
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