Independent power take-off with clutch and anti-creep brake

Claim 1

IN AN INDEPENDENT POWER TAKE-OFF, THE COMBINATION COMPRISING: A HOUSING; A DRIVING SHAFT JOURNALED IN SAID HOUSING; A DRIVEN SHAFT JOURNALED IN SAID HOUSING; HYDRAULICALLY ACTUATED CLUTCH MEANS BETWEEN SAID SHAFTS AND ENGAGEABLE FOR DRIVINGLY CONNECTING SAID DRIVING SHAFT WITH SAID DRIVEN SHAFT; HYDRAULICALLY ACTUAED ANTI-CREEP BRAKE MEANS SEPARATE FROM SAID CLUTCH MEANS AND ENGAGEABLE FOR RESTRICTING ROTATION OF SAID DRIVEN SHAFT WHEN SAID CLUTCH MEANS IS DISENGAGED; FIRST RESILIENT MEANS IN ENGAGING RELATIONSHIP WITH SAID CLUTCH MEANS FOR BIASING SAID CLUTCH MEANS TOWARD ITS DISENGAGING POSITION; SECOND RESILIENT MEANS IN ENGAGING RELATIONSHIP WITH SAID ANTICREEP BRAKE MEANS FOR BIASING SAID ANTI-CREEP BRAKE MEANS TOWARD ITS ENGAGING POSITION; AND HYDRAULIC FLOW CONTROL MEANS COMMUNICATING WITH SAID CLUTCH MEANS AND SAID ANTI-CREEP BRAKE MEANS FOR SELECTIVELY DIRECTING HYDRAULIC FLUID TO AND FROM SAID CLUTCH MEANS AND SAID ANTI-CREEP BRAKE MEANS FOR RESPECTIVELY ENGAGING SAID CLUTCH MEANS AND DISENGAGING SAID ANTI-CREEP BRAKE MEANS AND FOR ALLOWING DISENGAGING OF SAID CLUTCH MEANS AND ENGAGING OF SAID ANTI-CREEP BRAKE MEANS UNDER THE INFLUENCE OF SAID FIRST AND SECOND RESILIENT MEANS; SAID HYDRAULIC FLOW CONTROL MEANS INCLUDING VALVE MEANS HAVING A HOUSING DEFINING A STEPPED VALVE BORE WITH RELATIVELY LARGE AND SMALL PORT PORTIONS, AN INLET COMMUNICATING A SOURCE OF FLUID UNDER PRESSURE WITH SAID RELATIVELY LARGE BORE PORTION, PASSAGE MEANS COMMUNICATING SAID RELATIVELY SMALL BORE PORTION WITH SAID CLUTCH MEANS AND SAID ANTI-CREEP BRAKE MEANS, AN OUTLET COMMUNICATING WITH SAID VALVE BORE, A VALVE SPOOL SLIDABLE IN SAID VALVE BORE AND HAVING A PISTON VALVE PORTION COOPERABLE WITH SAID RELATIVELY SMALL BORE PORTION AND ANOTHER VALVE PORTION COOPERABLE WITH SAID RELATIVELY LARGE BORE PORTION, MEANS BIASING SAID VALVE SPOOL TOWARD A FIRST POSITION IN WHICH SAID PISTON VALVE PORTION COMMUNICATES SAID INLET WITH SAID PASSAGE MEANS, SAID VALVE SPOOL BEING RESPONSIVE TO DIFFERENTIAL FORCE IN SAID BORE PORTIONS FOR MOVEMENT AGAINST THE FORCE OF SAID BIASING MEANS TOWARD A SECOND POSITION IN WHICH SAID OTHER VALVE PORTION COMMUNICATES SAID INLET WITH SAID OUTLET, AND MEANS OPERATIVELY ASSOCIATED WITH SAID VALVE MEANS FOR MOVING SAID VALVE SPOOL TOWARD A THIRD POSITION IN WHICH SAID INLET AND SAID PASSAGE MEANS COMMUNICATE WITH SAID INLET.