Fluid pressure energy translating device

Claim 1

A FLUID PRESSURE ENERGY TRANSLATING DEVICE COMPRISING: A HOUSING HAVING A VALVE PLATE, A DRIVE SHAFT, A ROTABLE CYLINDER BARREL IN ABUTMENT WITH SAID VALVE PLATE AND HAVING A PLURALITY OF AXIAL CYLIDER BORES OPEN TO SAID VALVE PLATE, PISTONS RECIPROCABLE IN THE BORES, AN INCLINED THRUST PLATE MOUNTED IN THE HOUSING IN DRIVING RELATION WITH THE PISTONS, INLET AND OUTLET PORTS ALTERNATELY CONNECTABLE THROUGH THE VALVE PLATE TO SAID CYLINDER BORES BY ROTATION OF THE CYLINDER BARREL, A DRIVE COLLAR SPLINED ON SAID SHAFT AND POSITIONED BETWEEN SAID SHAFT AND BARREL FOR LOCATING THE BARREL AS TO LATERAL POSITION AND HAVING A SPLINED DRIVING CONNECTION WITH SAID BARREL, A GUIDE HAVING A FREE SLIDING FIT ON SAID DRIVE SHAFT ADJACENT SAID COLLAR AND HAVING A SPHERICAL OUTER SURFACE, THE CENTER OF SAID SPHERICAL SURFACE LAYING ON THE DRIVE SHAFT AXIS, A RETRACTOR PLATE HAVING A CENTRAL CYLINDRICAL RECESS SLIGHTLY LARGER IN DIAMETER THAN THE SPHERICAL OUTER SURFACE OF SAID GUIDE, SAID PLATE BEING DISPOSED WITH SAID GUIDE FREELY DISPOSED IN SAID RECESS FOR RADIALLY LOCATING SAID PLATE RELATIVE TO SAID SHAFT, SAID PLATE BEING ARRANGED SO AS TO HAVE A DRIVING CONNECTION WITH SAID PISTONS, AN EQUALIZER SWIVELLED ON SAID GUIDE AND DISPOSED BETWEEN SAID COLLAR AND SAID PLATE, SAID EQUALIZER HAVING RADIALLY DISPOSED THRUST SURFACES WHICH ABUT AGAINST SAID PLATEAROUND SAID RECESS THEREIN, AND A COIL SPRING AROUND SAID SHAFT AND CONFINED BETWEEN THE CYLINDER BARREL AND SAID COLLAR WHEREBY THE CYLINDER BARREL IS BIASED AGAINST THE VALVE PLATE AND THE COLLAR BIASES SAID EQUALIZER AGAINST SAID RETRACTOR PLATE FOR BIASING THE PISTONS AGAINST THE THRUST PLATE.