Automatic power transmission mechanism

Claim 1

IN A POWDER TRANSMISSION MECHANISM CAPABLE OF DELIVERING DRIVING TORQUE THROUGH A GEARED POWER FLOW PATH FROM A DRIVING MEMBER TO A DRIVEN MEMBER, AN ENGINE DRIVABLY CONNECTED TO SAID DRIVING MEMBER, CLUTCH MEANS AND BRAKE MEANS FOR CONTROLLING THE RELATIVE MOTION OF SAID ELEMENTS WHEREBY DIFFERENT SPEED RATIOS CAN BEOBTAINED, A FLUID PRESSURE SOURCE, CONDUIT STRUCTURE CONNECTING SAID PRESSUREE SOURCE WITH BOTH SAID CLUTCH MEANS AND SAID BRAKE MEANS, FIRST AND SECND PORTIONS OF SAID CONDUIT STRUCTURE EXTENDING TO SAID BRAKE MEANS AND SAI D CLUTCH MEANS RESPECTIBELY, A TRANSITION VALVE DEFINING A PART OF ONE OF SAID CONDUIT STRUCTURE PORTIONS AND COMMUNICATING WITH THE OTHER CONDUIT STRUCTURE PORTION, A FLUID PRESSURE DISTRIBUTOR VALVE MEANS DISPOSED IN AND PARTLY DEFINING SAID FIRST CONDUIT STRUCTURE PORTION FOR SELECTIVELY PRESSURIZING AND EXHAUSTING THE SAME, AN EXHAUST PORT FORMED IN SAID TRANSISTION VALVE, SAID TRANSISTION VALVE RESPONDING TO A PRESSURE BUILD-UP IN SAID ONE CONDUIT STRUCTURE PORTION TO EXHAUST SAID OTHER CONDUIT STRUCTURE PORTION, A SOURCE OF AN ENGING TORQUE SENSITIVE SIGNAL PRESSURE, AND TIMING VALVE MEANS HAVING PORTIONS COMMUNICTING WITH SAID TRANSITION VALVE FOR MODIFYING THE TIME OF RESPONSE OF SAID TRANSISTION VALVE IN ACCORDANCE WITH CHANGES IN THE MAGNITUDE OF SAID SIGNAL PRESSURE.