Land leveler

Claim 1

A LAND LEVELER COMPRISING, IN COMBINATION WITH A TRACTOR HAVING FRONT AND REAR WHEELS, A DRAWBAR, A HORIZONTAL FRAME, AN UPRIGHT MEMBER PIVOTALLY ATTACHING THE FRAME TO SAID DRAWBAR, A SCRAPER BLADE RIGIDLY CONNECTED TO THE REAR OF SAID FRAME AND DEPENDING THEREFROM, SAID SCRAPER BLADE HAVING A LOWER CUTTING EDGE, WHEEL AND WHEEL SUPPORT MEANS PIVOTALLY CONNECTED ON SAID SCRAPER, A FIRST RAM PIVOTALLY CONNECTED TO SAID FRAME AND UPRIGHT MEMBER, AN ARM PIVOTALLY CONNECTED TO SAID FRAME, A SECOND RAM PIVOTALLY CONNECTED TO SAID ARM AND FRAME, HYDRAULIC SUPPLY CONDUIT MEANS IN COMMUNICATION WITH BOTH OF SAID RAMS FOR ACTUATING SAID ARM ABOUT ITS PIVOT POINT, A ROD OPERATIVELY CONNECTED TO SAID ARM FOR MOVEMENT THEREBY, A BEAM PIVOTALLY CONNECTED ON SAID FRAME AND EXTENDING REARWARDLY THEREFROM, A GROUND ENGAGING FEELER, WHEEL MOUNTED ON SAID BEAM AT THE REAR END THEREOF, SERVO-UNIT MEANS MOUNTED ON SAID BEAM AND OPERATIVELY CONNECTED FOR ACTUATION BY SAID ROD, DOUBLE ACTING HYDRAULIC CYLINDER SCRAPER BLADE ACTUATING MEANS OPERATIVELY CONNECTED TO SAID WHEEL SUPORT MEANS TO EFFECT PIVOTAL MOVEMENT OF ITS SAID WHEEL MEANS FOR MAINTAINING THE CUTTING EDGE OF SAID SCRAPER BLADE IN ALIGNMENT BETWEEN SAID TRACTOR FRONT WHEELS AND SAID GROUND ENGAGING FEELER WHEEL, CAUSING THE SCRAPER BLADE TO CUT AND FILL, THEREBY LEVELING THE LAND, AND HYDRAULIC CONDUIT MEANS IN COMMUNICATION WITH SAD SERVO-UNIT AND DOUBLE ACTING HYDRAULIC CYLINDER MEANS FOR CONTROLLING SAID SCRAPER BLADE.