Vehicle for road and railroad

Claim 1

A COMBINED ROAD AND RAIL VEHICLE, COMPRISING A FRAME, A FRONT AND REAR WHEEL AXLE RESILIENTLY MOUNTED ON SAID FRAME, ROAD WHEELS AT THE OPPOSITE ENDS OF EACH OF SAID AXLES, SAID REAR ROAD WHEEL AXLE HAVING A DIFFERENTIAL THEREIN, A DRIVE SHAFT HAVING UNIVERSAL JOINTS AT EACH END THEREOF HAVING ONE END CONNECTED TO SAID DIFFERENTIAL FOR DRIVING SAID REAR ROAD WHEEL AXLE, FOUR BELL CRANKS PIVOTALLY MOUNTED RELATIVE TO SAID FRAME ADJACENT SAID ROAD WHEELS, A RAIL WHEEL ROTATABLY MOUNTED ON ONE END OF EACH OF THE BELL CRANKS ADJACENT THE FRONT WHEEL AXLE, A CRANK ROTATING MEANS CONNECTED TO THE OTHER END OF EACH BELL CRANK FOR ROTATING SAID BELL CRANKS TO RAISE AND LOWER SAID RAIL WHEELS, A REAR RAIL WHEEL AXLE BETWEEN THE BELL CRANKS ADJACENT THE REAR ROAD WHEELS AND HAVING RAIL WHEELS ON OPPOSITE ENDS THEREOF, A REDUCING GEAR IN SAID REAR RAIL WHEEL AXLE, AN EXTENSIBLE DRIVE SHAFT HAVING UNIVERSAL JOINTS AT EACH END THEREOF HAVING ONE END CONNECTED TO SAID REDUCING GEAR FOR DRIVING SAID REAR RAIL WHEEL AXLE, SAID EXTENSIBLE DRIVE SHAFT HAVING A SPLINED SHAFT AND AN INTERNALLY SPLINED SLEEVE IN WHICH SAID SPLINED SHAFT IS SLIDABLE, A CHANGE-OVER GEAR MEANS CONNECTED TO THE OTHER ENDS OF SAID DRIVE SHAFT AND SAID EXTENSIBLE DRIVE SHAFT, A FURTHER ARM ON THE END OF EACH OF THE BELL CRANKS ADJACENT THE FRONT ROAD WHEELS, AN AUXILIARY WHEEL ON THE END OF EACH FURTHER ARM, SAID AUXILIARY WHEELS BEARING AGAINST THE BOTTOM PORTION OF THE FRONT ROAD WHEELS WHEN THE FRONT BELL CRANKS ARE IN THE POSITION WITH THE FRONT RAIL WHEELS LOWERED FOR TRANSMITTING SHOCKS TO SAID FRAME THROUGH SAID FRONT ROAD WHEELS AND THE RESILIENT MOUNTING OF SAID FRONT ROAD WHEEL AXLE.