Harrow attachment

Claim 1

A TRACTOR ATTACHMENT FOR TRANSPORTING HARROW SECTIONS AND THE LIKE, SAID ATTACHMENT COMPRISING A FORE-AND-AFT TONGUE CONNECTIBLE TO A TRACTOR, AN ELONGATE SECTIONAL FRAME INCLUDING A PLURALITY OF FRAME STRUCTURES EXTENDING TRANSVERSELY OF THE TONGUE AND BEING SWINGABLY CONNECTED THERETO FOR FORE-ANDAFT SWINGING MOVEMENT BETWEEN SAID TRANSVERSELY EXTENDING POSITION AND A TRANSPORT POSITION IN GENERALLY LONGITUDINAL RELATION TO THE TONGUE, SAID FRAME STRUCTURES HAVING DRAFT COUPLING CONNECTIONS THEREON ADAPTED FOR READY CONNECTION TO A PLURALITY OF TRAILING HARROW SECTIONS DISPOSED REARWARDLY OF THE FRAME STRUCTURES AND ARRANGED IN SIDE-BY-SIDE RELATION WITH RESPECT TO EACH OTHER, MEANS RELEASABLY INTERLOCKING SAID FRAME STRUCTURE IN TRANSVERSELY EXTENDING RELATION WITH SAID TONGUE, GROUND ENGAGING WHEELS SUPPORTING THE FRAME FOR TRAVEL OVER THE GROUND, LINKAGE MEANS INTERCONNECTING SAID TONGUE AND SAID FRAME STRUCTURES AND COOPERATING WITH THE LATTER WHEN SAID INTERLOCKING MEANS IS RELEASED TO CAUSE SWINGING MOVEMENT OF THE FRAME STRUCTURES TO THE TRANSPORT POSITION DURING FORWARD MOVEMENT OF SAID ATTACHMENT, ELEVATING MECHANISM MOUNTED ON SAID TONGUE AND SAID FRAME STRUCTURES AND INCLUDING ELONGATE FLEXIBLE CABLE MEANS ADAPTED TO BE CONNECTED WITH THE HARROW SECTIONS AT POINTS REARWARDLY OF THE COUPLING CONNECTIONS BETWEEN THE HARROW SECTIONS AND FRAME STRUCTURES, AND BEING AUTOMATICALLY OPERATED IN RESPONSE TO SWINGING MOVEMENT OF SAID FRAME STRUCTURE TOWARDS THE TRANSPORT POSITION TO CAUSE UPWARD SWINGING MOVEMENT OF THE HARROW SECTIONS ABOUT THEIR RESPECTIVE COUPLING CONNECTIONS WITH THE FRAME STRUCTURE, AND ACTUATING MECHANISM MOUNTED ON SAID TONGUE AND CONNECTED WITH SAID CABLE MEANS AND BEING ACTUABLE TO POSITIVELY OPERATE THE ELEVATING MECHANISM WHEN THE FRAME STRUCTURES ARE IN THE TRANSVERSELY EXTENDING RELATION WITH RESPECT TO SAID TONGUE TO THEREBY PERMIT POSITIVE RAISING AND LOWERING OF THE HARROW SECTIONS INDEPENDENTLY OF SWINGING MOVEMENT OF THE FRAME STRUCTURES.