Tree shaker attachment for a tractor

Claim 1

THE COMBINATION WITH A TRACTOR PROVIDED WITH A POWER TAKE-OFF UNIT HAVING A SUBSTANTIALLY UPRIGHT DRIVEN SLEEVE, THE SLEEVE DEFINING A BORE EXTENDING AXIALLY THERETHROUGH, OF A TREE SHAKER ATTACHMENT FOR THE TRACTOR COMPRISING: (A) A STUB SHAFT MOUNTED IN THE BORE OF THE SLEEVE, WITH THIS SHAFT BEING CONNECTED TO THE SLEEVE SO AS TO BE TURNED BY THE LATTER; (B) THE SHAFT BEING FREELY INSERTABLE INTO THE BORE OF THE SLEEVE WITH A SLIDING FIT BY MERELY MOVING THE SHAFT ENDWISE DOWNWARDLY INTO THE BORE, AND THE SHAFT BEING FREELY DETACHABLE FROM THE SLEEVE BY MOVING THE SHAFT UPWARDLY RELATIVE TO THE SLEEVE; (C) A DISC POSITIONED ABOVE THE POWER TAKE-OFF UNIT, AND BEING FIXED TO THE UPPER END OF THE SHAFT FOR TURNING BY THE LATTER; (D) A PITMAN DISPOSED ABOVE THE DISC AND HAVING AN INBOARD END ATTACHED TO THE DISC IN ECCENTRIC RELATION WITH RESPECT TO THE SHAFT, WITH THE PITMAN BEING UNIVERSALLY SWINGABLE INTO VARIOUS INCLINED AND LATERAL POSITIONS SO AS TO EXTEND TOWARD A SELECTED TREE LIMB; (E) A PULL CABLE, OR THE LIKE, HAVING AN INNER END ANCHORED TO AN OUTBOARD END OF THE PITMAN; (F) AND A HOOK CONNECTED TO AN OUTER END OF THE PULL CABLE, AND BEING MADE TO BE ENGAGED OVER THE SELECTED TREE LIMB, WHEREBY THE TREE WILL BE SHAKEN WHEN THE SHAFT IS ROTATED.