Differential gear with locking means

Claim 1

THE COMBINATION COMPRISING A DIFFERENTIAL GEAR LOCKING MEANS FOR SELECTIVELY LOCKING SAID DIFFERNTIAL GEAR SAID DIFFERENTIAL GEAR INCLUDING A ROTARY GEAR CASE, TWO BEVEL GEAR WHEELS MOUNTED FOR ROTATIONS 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 EQUI-DISTANTLY FROM AND 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 TAPERED OPENINGS, SAID LOCKING MEANS COMPRISING A PLU RALITY OF AXIALLY-MOVABLE COUPLING PINS DISPOSED ONE IN EACH OF SAID BORES AND EACH HAVING A TAPERED END, AND MEANS FOR SELECTIVELY MOVING SAID COUPLING PINS AXIALLY IN UNISON TOWARDS AND AWAY FROM SAID BEVEL GEAR HAVING SAID TAPERED OPENINGS, THE ARRANGEMENT BEING SUCH THAT WHEN SAID COUPLING PINS ARE MOVED AXIALLY FOR LOCKING SAID DIFFERENTIAL GEAR EACH OF SAID TAPERED ENDS ENTERS ONE OF SAID TAPERED OPENINGS AND UPON THE OCCURRENCE OF AN OVERLOAD THE TAPERED FORM CAUSES SAID TAPERED ENDS TO BE AUTOMATICALLY FORCED OUT OF SAID TAPERED OPENINGS.