Reversible hydraulic torque applier

Claim 1

IN A ROTATABLE HYDRAULIC TORQUE-APPLIER FOR APPLYING TORQUE TO THE GEAR MEMBERS OF A LOCKED GEAR TRAIN WHILE THE GEAR MEMBERS ARE ROTATING, THE COMBINATION OF: A ROTOR DEFINING A BORE HOLE ALONG THE AXIS THEREOF AND HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED RADIALLY EXTENDING PADDLE MEMBERS, A ROTATABLE HOUSING DISPOSED AROUND SAID ROTOR AND HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED PADDLE MEMBERS DEFINING TOGETHER WITH SAID ROTOR PADDLE MEMBERS FIRST AND SECOND SERIES OF ALTERNATING CIRCUMFERENTIALLY SPACED CHAMBERS BETWEEN SAID RESPECTIVE ROTOR AND HOUSING PADDLE MEMBERS, A SOURCE OF FLUID UNDER PRESSURE CONNECTED TO SAID ROTOR BORE HOLE, FIRST CONDUIT MEANS CONNECTED BETWEEN EACH OF SAID FIRST SERIES OF CHAMBERS AND THE BORE HOLE AND TERMINATING ON THE RADIALLY INNER END AT PORTS DEFINED AT TWO AXIALLY SPACED LOCATIONS IN THE BORE HOLE, SECOND CONDUIT MEANS OF THE SAME RADIAL LENGTH AS SAID FIRST CONDUIT MEANS AND CONNECTED BETWEEN EACH OF SAID SECOND SERIES OF CHAMBERS, AND THE BORE HOLE AND TERMINATING ON THE RADIALLY INNER END AT PORTS DEFINED BY THE BORE HOLE BETWEEN SAID FIRST AXIALLY SPACED CONDUIT PORTS, AXIALLY SLIDABLE REVERSING VALVE MEANS DISPOSED IN THE BORE HOLE AND DEFINING TWO AXIALLY SPACED SETS OF PORTS COOPERATING WITH SAID FIRST AND SECOND CONDUIT PORTS, SAID REVERSING VALVE BEING MOVABLE TO FIRST AND SECOND POSITIONS FOR SELECTIVELY CONNECTING EITHER SAID FIRST OR SECOND SERIES OF CHAMBERS TO SAID FLUID PRESSURE SOURCE WHILE DRAINING THE OTHER SERIES OF CHAMBERS THROUGH THE BORE HOLE, AND MEANS FOR AXIALLY SHIFTING THE POSITION OF SAID REVERSING VALVE MEANS WHILE THE MEMBERS ROTATE, WHEREBY TORQUE MAY BE APPLIED BETWEEN ROTOR AND HOUSING IN EITHER DIRECTION.