Cultivator drive assembly

Claim 1

IN MECHANISMS FOR OPERATING IMPLEMENTS DETACHABLY MOUNTED ON MOBILE VEHICLES PROVIDED WITH A POWER TAKEOFF SHAFT, THE COMBINATION INCLUDING A MAIN IMPLEMENT FRAME INCLUDING AN ELONGATED TUBULAR MEMBER, DETACHABLE MOUNTING MEANS FOR MOUNTING SAID FRAME ON A VEHICLE FOR LIMITED ROTATION OF SAID TUBULAR MEMBER ABOUT ITS LONGITUDINAL AXIS PARALLEL WITH THE AXIS OF THE VEHICLE TAKE-OFF SHAFT, A DRIVEN SHAFT, BEARING MEANS FOR SUPPORTING SAID SHAFT WITHIN THE TUBULAR MEMBER, FIRST AND SECOND SPROCKET WHEELS FIXED TO THE TAKE-OFF SHAFT AND TO THE DRIVEN SHAFT RESPECTIVELY, FLEXIBLE CHAIN MEANS OPERATIVELY CONNECTING THE SPROCKET WHEELS, ELONGATED HOUSING MEANS ENCLOSING SAID SPROCKET WHEELS AND CHAIN MEANS, MEANS FOR DETACHABLY MOUNTING SAID HOUSING MEANS ON A VEHICLE, SAID HOUSING MEANS HAVING AN OPENING ADJACENT ONE END THROUGH WHICH ONE END OF SAID DRIVEN SHAFT MAY BE LOOSELY RECEIVED, SEALING MEANS WITHIN THE TUBULAR MEMBER ADJACENT SAID ONE END OF THE SHAFT, AND FLEXIBLE ENCLOSURE MEANS JOINING ONE END OF THE TUBULAR MEMBER AND THE ELONGATED HOUSING AND SURROUNDING SAID OPENING FOR THE DRIVEN SHAFT, WHEREBY LUBRICATING OIL MAY BE CONTAINED WITHIN SAID HOUSING MEANS AND SAID TUBULAR MEMBER MAY BE ROTATED AND RADIALLY DISPLACED TO A LIMITED EXTENT WITH RESPECT TO THE ENCLOSURE.