Cotton picker with vibrating hopper

Claim 1

IN THE COMBINATION OF A COTTON HARVESTER HAVING A MAIN FRAME AND A COTTON RECEIVING CONTAINER HAVING OPPOSITE ENDS AND ADAPTED FOR SUSPENSION ON THE MAIN FRAME AND SUPPORTED THEREON BY HORIZONTAL PIVOT MEANS PERMITTING THE CONTAINER TO SWING VERTICALLY, AND EXTENSIABLE AND RETRACTABLE HYDRAULIC MOTOR MEANS EXTENDING BETWEEN THE CONTAINER AND MAIN FRAME ADAPTED TO TILT THE CONTAINER ON THE PIVOT AND INCLUDING A PRESSURIZED FLUID RETURN LINE FOR RETURNING THE CONTAINER TO A NORMAL OPERATING POSITION, THE IMPROVEMENT COMPRISING: CAM MEMBERS BETWEEN THE MAIN FRAME AND OPPOSITE ENDS OF THE CONTAINER FOR EFFECTING VERTICAL VIBRATORY MOTION OF THE CONTAINER RELATIVE TO THE MAIN FRAME, AND HYDRAULIC MOTOR MEANS OPERATIVELY CONNECTED TO THE CAM MEMBERS FOR EFFECTING VIBRATION OF THE CONTAINER; AND A PRESSURIZED FLUID SOURCE EXTENDING FROM THE RETURN LINE TO THE MOTOR MEANS CONNECTED TO THE CAM MEMBERS FOR OPERATING THE LATTER.