Hydraulic transmission system

Claim 1

A HYDRAULIC MOTOR COMPRISING AN OUTER DRIVE MEMBER HAVING A SUBSTANTIALLY CYLINDRICAL SURFACE PROVIDED WITH A PLURALITY OF GENERALLY RADIAL BORES CIRCUMFERENTIALLY SPACED THEREAROUND AND FORMING PISTON CYLINDERS, AN INNER DRIVE MEMBER OF GENERALLY PRISMATIC CONFIGURATION IN SAID OUTER DRIVE MEMBER COAXIALLY JOURNALED THEREIN FOR ROTATION RELATIVE THERETO, AND A PLURALITY OF PLUNGERS DISPLACEABLY LODGED IN SAID CYLINDERS AND PROVIDED WITH EXTREMITIES BEARING UPON SAID INNER DRIVE MEMBER WHEREBY SAID MEMBERS ARE ROTATED RELATIVELY UPON ADMISSION OF A HYDRAUIC FLUID TO AND ITS DISCHARGE FROM SAID CYLINDERS IN A PREDETERMINED ORDER OF SUCCESSION, SAID OUTER MEMBER BEING PROVIDED WITH WALL PORTIONS AT EACH OF SAID CYLINDERS BRACKETING SAID INNER DRIVE MEMBER AND FORMING TRACKS EXTENDING SUBSTANTIALLY RADIALLY INWARDLY FROM SAID SURFACE, SAID PLUNGERS EACH BEING PROVIDED WITH GUIDE MEANS AT A RESPECTIVE ONE OF SAID EXTREMITIES ROLLINGLY ENGAGING A RESPECTIVE TRACK FOR SUPPORTING THE RESPECTIVE PISTON AT ITS EXTREMITY.