Rotary pump and motor

Claim 1

IN A ROTARY, RADIAL PISTON, VARIABLE DISPLACEMENT DEVICE OPTIONALLY USABLE AS A PUMP OR MOTOR, A FIXED SHAFT, A CYLINDER BLOCK MOUNTED FOR ROTATION ON SAID SHAFT AND HAVING A PLURALITY OF UNIFORMLY CIRCUMFERENTIALLY SPACED RADIAL CYLINDER BORES EXTENDING FROM THE OUTER PERIPHERY OF SAID CYLINDER BLOCK TO THE BEARING BY WHICH SAID CYLINDER BLOCK IS MOUNTED ON SAID FIXED SHAFT, A HOUSING SURROUNDING SAID CYLINDER BLOCK, A FLYWHEEL MEMBER WITHIN SAID HOUSING AND HAVING A RIM PORTION OVERHANGING THE OUTER PERIPHERY OF SAID CYLINDER BLOCK, A SHAFT JOURNALED IN A BEARING IN SAID HOUSING AND CARRYING SAID FLYWHEEL, A PLURALITY OF PISTONS DISPOSED ONE EACH IN EACH OF SAID CYLINDER BORES IN SAID CYLINDER BLOCK, A PLURALITY OF PISTON RODS EACH HAVING ONE END ATTACHED TO ONE EACH OF SAID PISTONS AND HAVING THE OPPOSITE END THEREOF CONNECTED TO SAID FLYWHEEL AT EQUALLY CIRCUMFERENTIALLY SPACED POINTS THEREON FOR OSCILLATORY MOVEMENT ABOUT AN AXIS PARALLEL TO THE AXIS OF SAID SHAFT ON WHICH SAID FLYWHEEL IS MOUNTED, MEANS FOR CONDUCTING FLUID THROUGH SAID FIXED SHAFT TO SAID CYLINDERS AS THEY PASS THROUGH A PREDETERMINED SEGMENT OF THE CIRCUMFERENCE OF SAID FIXED SHAFT INCIDENT TO ROTA-