Differential gear with locking means

Claim 1

THE COMBINATION COMPRISING, IN AN AXLE HOUSING, A DIFFERENTIAL GEAR AND LOCKING MEANS FOR SELECTIVELY LOCKING SAID DIFFERENTIAL GEAR, SAID DIFFERENTIAL GEAR INCLUDING A ROTARY GEAR CASE, TWO BEVEL GEAR WHEELS MOUNTED FOR ROTATION IN SAID GEAR CASE, A PLURALITY OF BEVEL PINIONS MOUNTED FOR ROTATION IN SAID GEAR CASE AND EACH MESHING WITH BOTH OF SAID BEVEL GEAR WHEELS, AND TWO CO-LINEAR HALF-SHAFTS EXTENDING FROM SAID GEAR CASE AND SECURED ONE TO EACH OF SAID BEVEL GEAR WHEELS, SAID GEAR CASE HAVING IN ONE SIDE A PLURALITY OF BORES DISPOSED PARALLEL TO AND ON A PITCH CIRCLE CONCENTRIC WITH ONE OF SAID HALF-SHAFTS, AND ONE OF SAID BEVEL GEAR WHEELS HAVING A PLURALITY OF V-SHAPED OPENINGS PROVIDED IN SAID BEVEL GEAR WHEEL, SAID LOCKING MEANS COMPRISING AN OPERATING DEVICE, A COUPLING RING, A THRUST RING, A PLURALITY OF AXIALLY-MOVABLE COUPLING PINS DISPOSED ONE IN EACH OF SAID BORES AND EACH HAVING A V-SHAPED END AND BEING SECURED TO SAID COUPLING RING, SAID COUPLING RING BEING ROTATABLE IN SAID THRUST RING, AND MEANS FOR SELECTIVELY MOVING THE V-SHAPED ENDS OF SAID COUPLING PINS IN UNISON INTO SAID V-SHAPED OPENINGS PROVIDED IN SAID BEVEL GEAR WHEEL FOR LOCKING SAID DIFFERENTIAL GEAR, SAID MEANS FOR MOVING SAID COUPLING PINS COMPRISING A PAIR OF AXIAL FACE CAM RINGS ARRANGED BETWEEN SAID THRUST RING AND SAID AXLE CASE AND CONCENTRIC WITH ONE OF SAID HALF-SHAFTS, ONE OF SAID AXIAL FACE CAM RINGS BEING TORSIONALLY SECURED TO SAID AXLE HOUSING AND THE OTHER OF SAID AXIAL FACE CAM RINGS BEING ARRANGED FOR LIMITED ROTATION BY MEANS OF SAID OPERATING DEVICE.