Clutch and transmission with dual modulating fluid controls

Claim 1

IN A SYSTEM FOR DRIVING A LOAD FROM A PRIME MOVER INCLUDING A MULTI-DRIVE RATIO TRANSMISSION AND A MODULATED CLUTCH DRIVINGLY CONNECTED BETWEEN THE PRIME MOVER AND THE LOAD, A MODULATING ACTUATOR CONNECTED FOR ENGAGING SAID MODULATED CLUTCH WHEN SUPPLIED WITH PRESSURE FLUID AND TO A DEGREE PROPORTIONAL TO THE PRESSURE OF THE FLUID SUPPLIED THERETO, A SOURCE OF PRESSURE FLUID, A FIRST FLUID CONDUIT CONNECTING AND MODULATING ACTUATOR AND SAID PRESSURE FLUID SOURCE, FIRST AND SECOND PRESSURE REGULATORS INDIVIDUALLY ADJUSTABLE BETWEEN THE OPEN AND CLOSED POSITIONS AND CONNECTED IN SAID FIRST CONDUIT, A PLURALITY OF FLUID ACTUATORS ADAPTED WHEN SUPPLIED WITH PRESSURED FLUID IN PRESELECTED PATTERNS TO SET SAID TRANSMISSION IN THE DRIVE RATIOS, A FIRST CONTROL MEMBER INCLUDING A HANDLE MOVABLE BETWEEN A PLURALITY OF POSITIONS EACH CORRESPONDING TO ONE OF THE DRIVE RATIOS OF THE TRANSMISSION, AND HANDLE BEING MOVABLE BETWEEN A FIRST POINT AND A SECOND POINT WHEN DISPOSED IN EACH OF SAID POSITIONS, A SECOND POINT MEMBER INCLUDING MEANS FOR ADJUSTING SAID SECOND CONTROL SURE REGULATOR, A SELECTOR VALVE CONNECTING SAID PLURALITY OF FLUID ACTUATORS AND SAID PRESSURE FLID SOURCE AND INCLUDING MEANS TO PERMIT PRESSURE FLUID FLOW TO SELECTED ONES OF SAID ACTUATORS IN A PATTERN CORRESPONDING TO THE POSITIONING OF SAID HANDLE, A FLUID FLOW SENSOR ACTUATED TO A FIRST CONDITION WHEN FLUID IS FLOWING THROUGH SAID SELECTOR VALVE AND TO A SECOND CONDITION WHEN NO FLOW IS OCCURING THEREBY INDICATING SAID FLUID ACTUATORS HAVE SET THE TRANSMISSION IN THE DRIVE RATIO CORRESPONDING TO THE POSITIONING OF SAID HANDLE, AND MEANS FOR ADJUSTING SAID FIRST PRESSURE REGULATOR TOWARD THE CLOSED POSITION IN RESPONSE TO SAID HANDLE BEING MOVED TOWARD THE FIRST POINT WITHIN ANY OF SAID POSITIONS AND ADJUSTING SAID REGULATOR TOWARD THE OPEN POSITION IN RESPONSE TO SAID HANDLE BEING MOVED TOWARD THE SECOND POINT WITHIN ANY OF SAID POSITIONS AND IN RESPONSE TO SAID FLOW SENSOR BEING ACTUATOR TO SAID SECOND CONDITION WHEREBY SIAD MODULATED CLUTCH IS DISENGAGED AS AN INCIDENT TO SHIFTING THE DRIVE RATIO OF THE TRANSMISSION AND ONLY REENGAGED AFTER THE SHIFTING IS CONPLETED.