Drill string suspension arrangement

Claim 1

IN COMBINATION FOR STABBING IN DRILL PIPE, A HOUSING DEFINING AN OPENING HAVING AN AXIS AND ENCIRCLED BY A CONTINUOUS WALL, A FIRST SET OF A PLURALITY OF PIPE GRIPPER JAWS CARRIED BY SAID HOUSING FOR TRANSVERSE MOVEMENT RELATIVE TO SAID AXIS, POWER MEANS IN SAID HOUSING FOR MOVING SAID FIRST GRIPPER JAWS, SAID FIRST GRIPPER JAWS BEING ADAPTED FOR RADIAL MOVEMENT ONLY OF SAID AXIS, A ROTATABLE CARRIER POSITIONED COAXIALLY WITHIN SAID HOUSING, POWER MEANS IN SAID HOUSING FOR ROTATING SAID CARRIER, A SECOND SET OF PIPE GRIPPER JAWS ON SAID ROTATABLE CARRIER FOR MOVEMENT RADIALLY OF SAID AXIS, POWER MEANS ON SAID CARRIER FOR MOVING SAID SECOND GRIPPER JAWS IN SAID RADIAL FASHION, A PLURALITY OF GUIDE JAWS POSITIONED ADJACENT SAID SECOND PIPE GRIPPER JAWS AND MOVABLE RADIALLY RELATIVE TO SAID AXIS TO GUIDE A PIPE WITH JOINT-STABBING ACCURACY, POWER MEANS CARRIED BY SAID HOUSING FOR MOVING SAID GUIDE JAWS, AND MEANS ON SAID HOUSING LIMITING THE DEGREE OF MOVEMENT OF SAID GUIDE JAWS TOWARD SAID AXIS.