Traction for earth movers and the like

Claim 1

A MACHINE FOR MOVING EARTH AND THE LIKE COMPRISING A TRACTOR HAVING DRIVE WHEELS, A POWER SOURCE AND MEANS FOR DRIVING SAID DRIVE WHEELS FROM SAID POWER SOURCE TO ENABLE SAID TRACTOR TO DEVELOP A FIRST DRAWBAR FORCE, MEANS PROVIDING AN OPRATOR''S STATION ON SAID TRACTOR, A TRAILER HAVING FRONT AND REAR WHEELS, AND POWER MEANS ON SAID TRAILER COMPRISING MECHANICAL DRIVE MEANS DRIVINGLY CONNECTED TO AT LEAST SAID TRAILER REAR WHEELS TO ENABLE SAID TRAILER TO DEVELOP A SECOND DRAWBAR FORCE, SAID TRAILER HAVING A GOOSENECK FRAME, POWER COUPLING MEANS INTERCONNECTING SAID TRACTOR POWER SOURCE AND SAID TRAILER POWER MEANS FOR DRIVING AT LEAST SAID TRAILER REAR WHEELS FROM SAID TRACTOR POWER SOURCE, DRAFT MEANS INTERCONNECTING THE BOTTOM OF THE GOOSENECK FRAME OF SAID TRAILER AND SAID TRACTOR FOR PULLING OF SAID TRAILER BY SAID TRACTOR, SAID POWER COUPLING MEANS RUNNING ALONG SAID DRAFT MEANS, SAID TRAILER MECHANICAL DRIVE MEANS RUNNING UP AND OVER SAID GOOSENECK FRAME, MEANS INTERCONNECTING THE REAR OF SAID TRACTOR AND THE FRONT OF SAID TRAILER AND OPRATIVE TO TRANSFER AT LEAST A PART OF THE WEIGHT OF SAID TRAILER FROM SAID FRONT TO SAID REAR WHEELS THEREOF AND TO SAID DRIVE WHEELS OF SAID TRACTOR, AND CONTROL MEANS AT SAID OPERATOR''S STATION ON SAID TRACTOR OPERATIVELY CONNECTED TO SAID WEIGHT TRANSFER MEANS AND TO SAID TRAILER POWER MEANS FOR SELECTIVELY OPERATING BOTH THEREOF, WHEREBY THE OPERATION TOGETHER OF SAID WEIGHT TRANSFER MEANS AND SAID POWER MEANS OF SAID TRAILER WITH SAID POWER SOURCE OF SAID TRACTOR ENABLES SAID EARTH MOVING MACHINE TO DEVELOP A THIRD DRAWBAR FORCE GREATER THAN THE SUM OF SAID FIRST AND SAID SECOND DRAWBAR FORCES, THEREBY PERMITTING SAID MACHINE TO TRAVERSE TERRAIN WHICH PROVIDES INHERENTLY LOW TRACTION.