Infinitely variable pulley gear

Claim 1

AN INFINITELY VARIABLE TRANSMISSION COMPRISING A PAIR OF SHAFTS, EACH OF SAID SHAFTS ADAPTED TO SERVE ALTERNATELY AS A DRIVE SHAFT AND AS A DRIVEN SHAFT, A PAIR OF CONICAL PULLEY DISKS ON EACH SHAFT, ONE DISK OF EACH PAIR BEING ROTATABLE AND AXIALLY MOVABLE ON ONE OF SAID SHAFTS AND THE OTHER DISK BEING CONNECTED TO SAID FIRST DISK SO AS TO BE ROTATABLE THEREWITH BUT BEING AXIALLY FIXED RELATIVE TO SAID SHAFT, AN ENDLESS DRIVING MEMBER CONNECTING SAID TWO PAIRS OF DISKS, SEPARATE MECHANICAL PRESSURE-APPLYING MEANS FOR ONE DIRECTION OF ROTATION OF SAID SHAFT OPERATIVELY CONNECTED WITH EACH AXIALLY MOVABLE DISK AND EACH PRESSURE-APPLYING MEANS INCLUDING ELEMENTS OPERATIVELY CONNECTED WITH ONE OF SUCH SHAFTS AND ONE OF SAID AXIALLY MOVABLE DISCS, RESPECTIVELY, SAID HELICAL SURFACES HAVING ONE PITCH DIRECTION FOR PRODUCING AXIAL FORCES BEARING ON SAID MOVABLE DISK IN THE DIRECTION TOWARD SAID DRIVING MEMBER AND SAID FIXED DISK IN RESPONSE TO A LOAD ACTING UPON ONE OF SAID SHAFTS FORMING THE DRIVEN SHAFT AND TO THE PREVAILING TRANSMISSION RATIO OF SAID TRANSMISSION, HYDRAULIC CONTROL MEANS FOR SELECTIVELY ADJUSTING THE TRANSMISSION RATIO OF SAID TRANSMISSION, SEPARATE HYDRAULIC TURNING MEANS ONE FOR EACH SHAFT REGULATED BY SAID HYDRAULIC CONTROL MEANS AND EACH INCLUDING FIRST AND SECOND PARTS RELATIVELY MOVABLE WITH RESPECT TO EACH OTHER AROUND THE RESPECTIVE SHAFT AXIS IN RESPONSE TO VARIATIONS IN PRESSURE THEREBETWEEN PRODUCED BY SAID CONTROL MEANS, SAID CONTROL MEANS INCLUDING A CONTROL ELEMENT, MEANS OPERATIVELY CONNECTING THE CONTROL ELEMENT TO ONE OF SAID AXIALLY