Variable hydraulically and mechanically locking differential

Claim 1

A VARIABLE HYDRAULICALLY AND MECHANICALLY LOCKING DIFFERENTIAL COMPRISING (A) A PAIR OF OUTPUT SHAFTS, (B) A DIFFERENTIAL CASING ROTATABLY MOUNTED ON SAID SHAFTS, (C) A MECHANICAL GEAR TRAIN DRIVE WITHIN SAID DIFFERENTIAL CASING AND INCLUDING (1) A SIDE GEAR REMOVABLY MOUNTED ON EACH OF SAID OUTPUT SHAFTS, (2) MULTIPLE COMPENSATING GEARS INTERMESHING WITH EACH OF SAID SIDE GEARS, (3) A SHROUD INTERMEDIATE SAID SIDE GEARS AND ADAPTED TO RECEIVE SAID COMPENSATING GEARS, (D) MEANS FOR SUPPLYING HYDRAULIC FLUID TO SAID DIFFERENTIAL CASING, (E) MEANS FOR INTRODUCING SAID HYDRAULIC FLUID INTO THE AREA OF SAID COMPENSATING GEARS INCLUDING (1) A SERIES OF AUTOMATIC DIRECTIONAL FLOW CONTROL VALVE ASSEMBLIES LOCATED IN SAID SHROUD, (2) SAID SHOULD HAVING A SERIES OF PORTS CONNECTING SAID VALVE ASSEMBLIES AND SAID COMPENSATING GEARS, (F) FLUID OPERATED BRAKE MECHANISM OPERATIVELY ASSOCIATED WITH SAID SIDE GEARS AND INCLUDING (1) MEANS PROVIDING A PLURALITY OF FRICTION SURFACES, AND (2) MEANS FOR APPLYING PRESSURE TO SAID SURFACES WHEREBY WHEN ONE OF SAID OUTPUT SHAFTS ROTATES MORE RAPDILY THAN THE OTHER OUTPUT SHAFT, SAID VALVE ASSEMBLIES WILL AUTOMATICALLY OPEN TO INTRODUCE HYDRAULICALLY FLUID INTO THE COMPENSATING GEARS AND SUCH COMPENSATING GEARS WILL FUNCTION AS PUMPS TO FORCE SAID FLUID AGAINST SAID MEANS FOR APPLYING PRESSURE TO EFFECT A BRAKING ACTION AGAINST THE FREE ROTATION OF THE RAPIDLY ROTATING SIDE GEAR.