Field stone collection apparatus

A farm implement for cooperation with a farm tractor having implement hitch and power take-off accessories and operation to collect field stones which lie on or partially or wholly below the earth's surface, comprising:

• a forward dragbox section having open forward and aft ends, a bottom provided with perforations through which unwanted collected materials may be passed to the earth's surface below, multiple spaced-apart stone-engaging teeth projecting downwardly and forwardly from the dragbox section leading end, and hitch points for coupling the section to a farm tractor implement hitch accessory,
• an aft dragbox section having an open forward end generally aligned with said forward dragbox section aft end, a bottom provided with perforations through which unwanted collected materials received from said forward dragbox section may be passed to the earth's surface below, and an aft end from which collected field stones received from said forward dragbox section are dumped when said aft dragbox section open forward end is elevated,
• vibrating means mounted upon said forward dragbox section and adapted for connection to and operation by a farm tractor power take-off accessory, and
• coupling means joining said forward and aft dragbox sections in a manner whereby said sections are rotated relative to each other when said forward dragbox section and said aft dragbox section forward end are elevated by farm tractor implement hitch accessory elevation of said forward dragbox section hitch points.