Tractor-drawn and driven rotary cultivator

Claim 1

IN A ROTARY CULTIVATOR A TRANSVERSE FRAME ADAPTED TO BE DRAWN BY A TRACTOR OR THE LIKE, A PLURALITY OF TILLER UNITS ON SAID FRAME EACH COMPRISING A GAUGE WHEEL ARM PIVOTED TO SAID FRAME AND EXTENDING FORWARDLY AND DOWNWARDLY FROM THE PIVOT, A TILLER WHEEL ARM PIVOTED TO SAID FRAME AND EXTENDING REARWARDLY AND DOWNWARDLY FROM THE PIVOT, A GAUGE WHEEL CARRIED BY THE LOWER END OF SAID GAUGE WHEEL ARM, A TILLER WHEEL CARRIED BY THE LOWER END OF SAID TILLER WHEEL ARM, SAID GAUGE WHEEL BEING THEREBY LOCATED IN ADVANCE OF SAID FRAME AND SAID TILLER WHEEL BEING SUBSTANTIALLY SPACED THEREFROM AND TRAILING SAID FRAME, THE UPPER ENDS OF SAID ARMS BEING OPERATIVELY CONNECTED TOGETHER FOR SIMULTANEOUS UPWARD AND DOWNWARD MOVEMENT AS SAID GUAGE WHEEL RESPONDS TO THE CONTOUR OF THE GROUND SURFACE OVER WHICH IT TRAVELS, AND MEANS FOR ROTATING SAID TILLER UNIT FROM THE POWER TAKE-OFF OF THE TRACTOR, SAID TILLER UNITS BEING ADJUSTABLE ALONG SAID FRAME AND EACH ONE HAVING A DEPENDING SUPPORT, SAID GAUGE WHEEL ARM AND SAID TILLER WHEEL ARM BEING PIVOTED THERETO ADJACENT THE LOWER END THEREOF, SAID MEANS FOR ROTATING INCLUDING A DRIVE SHAFT EXTENDING LONGITUDINALLY OF SAID FRAME, AND EACH OF SAID TILLER UNITS HAVING AN OPERATIVE CONNECTION WITH SAID DRIVE SHAFT COMPRISING A FIRST CHAIN DRIVE DOWNWARDLY FROM SAID DRIVE SHAFT TO THE PIVOT FOR SAID TILLER WHEEL ARM AND A SECOND CHAIN DRIVE FROM SAID PIVOT TO SAID TILLER WHEEL.