Adjustable drum type ditching excavator

Claim 1

A DITCHING EXCAVATOR FOR MOUNTING ON A TRACTOR HAVING A POWER TAKE-OFF AND A MOUNTING BRACKET, SAID EXCAVATOR COMPRISING A HEAD MOUNTED ON SAID BRACKET, AN EARTH CUTTING DRUM MOUNTED AT ONE END ON SAID HEAD FOR AXIAL ROTATION AND FOR SWINGING MOVEMENT ABOUT A HORIZONTAL AXIS, SPIRALLY DISPOSED EARTH CUTTERS ON THE SURFACE OF SAID DRUM, A FRAME MOUNTED ON SAID HEAD FOR SWINGING MOVEMENT ABOUT SAID HORIZONTAL AXIS, AN ENDLESS BUCKET-TYPE CONVEYOR CARRIED BY SAID FRAME WITH A PORTION OF SAID CONVEYOR DISPOSED SUBSTANTIALLY PARALLEL TO SAID DRUM AND SPACED THEREFROM LONGITUDINALLY OF A DITCH TO BE EXCAVATED, AN ENDLESS BELT CONVEYOR MOUNTED ON SAID FRAME TO RECEIVE MATERIAL FROM SAID BUCKET CONVEYOR AND PROJECTING TRANSVERSELY TO THE SIDE OF A DITCH TO BE EXCAVATED, DRIVING CONNECTIONS BETWEEN SAID BELT CONVEYOR, SAID BUCKET CONVEYOR AND SAID DRUM, DRIVING CONNECTIONS BETWEEN SAID DRUM AND THE POWER TAKE-OFF OF SAID TRACTOR AND MEANS TO SIMULTANEOUSLY MOVE SAID DRUM AND SAID FRAME ABOUT SAID HORIZONTAL AXIS FROM AN OPERATIVE POSITION WITH THE AXIS OF SAID DRUM SUBSTANTIALLY VERTICAL TO AN INOPERATIVE POSITION WITH THE AXIS OF SAID DRUM SUBSTANTIALLY HORIZONTAL.