1. A ROD WEEDER HAVING A DRAFT SECTION AND A SHANK CARRYING FRAME PIVOTALLY ATTACHED ON ITS FORWARD SIDE TO THE DRAFT SECTION TO PIVOT VERTICALLY RELATIVE THERETO, THE DRAFT SECTION HAVING UPRIGHTS MOUNTED THEREON AND THE SHANK CARRYING FRAME HAVING UPSTANDING ARMS MOUNTED THEREON, AND INCLUDING MEANS ADJUSTABLY CONNECTING AND HOLDING SAID ARMS AND UPRIGHTS IN FIXED RELATION TO EACH OTHER, SAID SHANK CARRYING FRAME MOUNTED ON SUPPORTING WHEELS FREE TO PIVOT FORWARD AND BACKWARD THEREON; IN WHICH SAID UPRIGHTS AND ARMS ARE PIVOTALLY MOUNTED RESPECTIVELY ON THE DRAFT SECTION AND SHANK CARRYING FRAME TO MOVE FORWARD AND BACKWARD THEREON, MEANS ANCHORED TO THE DRAFT SECTION AND CONNECTED TO SAID UPRIGHTS BY WHICH THE UPRIGHT MAY BE HELD AGAINST PIVOTAL MOVEMENT, EXPANSION SPRINGS ATTACHED TO THE UPSTANDING ARMS ON THE SHANK CARRYING FRAME, AND MEANS ANCHORING SAID SPRINGS TO SAID FRAME TENSIONABLE BY A BACKWARD MOVEMENT OF SAID ARMS.