Power steering mechanism

Claim 1

IN A POWER STEERING MECHANISM INCLUDING AN INPUT MEMBER, AN OUTPUT MEMBER, AND A FLUID MOTOR OPERATIVELY CONNECTED TO SAID OUTPUT MEMBER, THE COMBINATION WITHIN A HOUSING OF A WORM HAVING GROOVE MEANS FORMED THEREON, FOLLOWER MEANS OPERATIVELY CONNECTED TO SAID OUTPUT MEMBER AND ENGAGING SAID GROOVE MEANS, A PAIR OF RELATIVELY ROTATABLE TELESCOPED TUBULAR ELEMENTS THROUGH WHICH FLUID FLOW TO AND FROM SAID MOTOR IS CONTROLLED, ONE OF WHICH IS OPERATIVELY CONNECTED TO SAID INPUT MEMBER AND THE OTHER OF WHICH IS OPERATIVELY CONNECTED TO SAID WORM, A TORSION BAR HAVING ONE END THEREOF FIXEDLY CONNECTED TO SAID INPUT MEMBER AND THE OTHER END THEREOF FIXEDLY CONNECTED TO SAID WORM, A DRIVE MEMBER FIXEDLY CONNECTED TO SAID TORSION BAR AND LOCATED BETWEEN THE ENDS THEREOF FOR SEPARATING SAID TORSION BAR INTO TWO SECTIONS, SAID DRIVE MEMBER HAVING FIRST AND SECOND SLOT MEANS LOCATED THEREIN, FIRST RIGID MEANS OPERATIVELY CONNECTED TO SAID WORM AND LOCATED IN SAID FIRST SLOT MEANS, SAID FIRST RIGID MEANS BEING IN ABUTMENT WITH ONE SIDE OF SAID FIRST SLOT MEANS FOR CAUSING ONLY ONE OF THE SECTIONS OF SAID TORSION BAR TO TWIST AND INCREASE THE TORSIONAL REACTION THEREOF WHEN SAID INPUT MEMBER IS ROTATED IN ONER DIRECTION, AND SECOND RIGID MEANS OPERATIVELY CONNECTED TO SAID INPUT MEMBER AND LOCATED IN SAID SECOND SLOT MEANS, SAID SECOND RIGID MEANS BEING IN ABUTMENT WITH ONE SIDE OF SAID SECOND SLOT MEANS FOR CAUSING ONLY THE OTHER OF THE SECTIONS OF SAID TORSION BAR TO TWIST AND INCREASE THE TORSIONAL REACTION THEREOF WHEN SAID INPUT MEMBER IS ROTATED IN THE OPPOSITE DIRECTION.