Mowing apparatus with a mower head universally supported by an extensible boom

Claim 1

MOWING APPARATUS ADAPTED TO BE MOUNTED ON A MOBILE CARRIER COMPRISING AN EXTENSIBLE BOOM ASSEMBLY, INCLUDING A BOOM AND MEANS FOR MOVING THE BOOM LATERALY OUTWARDLY AND INWARDLY RELATIVE TO THE PATH OF TRAVEL OF A MOBILE CARRIER; A POWER OPERATED MOWER HEAD WITH CUTTING MEANS PROVIDED WITH WHEELS FOR ENGAGING THE GROUND AND ROLLINGLY SUPPORTING THE MOWER HEAD; MEANS PIVOTALLY ATTACHING THE MOWER HEAD TO THE BOOM FOR UNIVERSAL MOVEMENT RELATIVE TO THE BOOM AS THE MOWER HEAD CHANGES ITS POSITION TO CONFORM WITH CHANGES IN THE CONTOUR OF THE GROUND OVER WHICH THE WHEELS TRAVERSE; AND MEANS FOR PIVOTALLY MOUNTING THE BOOM ASSEMBLY ON A MOBILE CARRIER TO ALLOW THE BOOM TO PIVOT IN A VERTICAL PLANE WHEREBY THE MOWER HEAD IS FREE TO FOLLOW THE CONTOUR OF THE GROUND ENGAGED BY THE WHEELS AS IT IS PROPELLED BY A MOBILE CARRIER.