Castor bean harvester

Claim 1

IN A HARVESTER FOR CASTOR BEAN CROPS OR THE LIKE: A MOBILE STRUCTURE ADAPTED FOR MOVEMENT OVER A GROUND SURFACE; AT LEAST A PAIR OF FORWARDLY PROJECTING APRON-LIKE EXTENSIONS ON SAID STRUCTURE SPACED LATERALLY APART TO PROVIDE AN ELONGATED FORE-AND-AFT PASSAGEWAY TO RECEIVE A ROW OF PLANTS THEREIN, THE UPPER SURFACE OF BOTH OF SAID APRON-LIKE EXTENSIONS SLOPING DOWNWARD TOWARD SAID PASSAGEWAY; RESILIENT BARRIER MEMBERS LINING SAID PASSAGEWAY ON OPPOSITE SIDES THEREOF AND CONVERGING INWARDLY TO FORM A YIELDABLE BARRIER PERMITING PLANT STALKS TO BE RECEIVED IN SAID PASSAGEWAY AS SAID STRUCTURE ADVANCES OVER THE GROUND BUT PREVENTING PLANT PRODUCTS FROM FALLING VERTICALLY THROUGH SAID PASSAGEWAY TO THE GROUND; MEANS INCLUDING LOOPED CONVEYOR MEMBERS MOUNTING SAID BARRIER MEMBERS FOR MOVEMENT REARWARD ALONG SAID PASSAGEWAY TO CARRY PLANT PRODUCTS THEREON TOWARD THE REAR OF SAID STRUCTURE, SAID CONVEYOR MEMBERS BEING MOVED BY THE FORCE EXERTED ON SAID BARRIER MEMBERS BY PLANTS RECEIVED IN SAID PASSAGEWAY; AND MEANS AT THE AFT END OF SAID PASSAGEWAY FOR GATHERING IN PLANT PRODUCTS DELIVERED THERETO BY SAID MOVABLE BARRIER MEMBERS.