Land plane

Claim 1

A LAND PLANE COMPRISING, IN COMBINATION FRAME MEANS INCLUDING A CENTER FRAME MEMBER AND TWO SIDE FRAME MEMBERS SECURED THERETO AT ONE END PORTION THEREOF AND POSITIONED IN SPACED RELATION THERETO AT THE OTHER END PORTION THEREOF, A SHAFT TRANSVERSELY AND ROTATABLY MOUNTED ON SAID OTHER END PORTION OF SAID CENTER FRAME MEMBER AND SAID SIDE FRAME MEMBERS, HITCH MEANS OPERATIVELY CONNECTED TO SAID ONE END PORTION OF SAID FRAME MEANS AND OPERABLE TO CONNECT SAID FRAME MEANS TO A VEHICLE, A PLURALITY OF ARM MEMBERS EACH RIGIDLY SECURED AT ONE END PORTION TO SAID SHAFT AND POSITIONED IN SPACED RELATION TO EACH OTHER, AXLE MEANS HAVING END PORTIONS TO RECEIVE AND MOUNT WHEEL MEANS AND MOUNTED SUBSTANTIALLY PARALLEL TO SAID SHAFT WITH AN END PORTION OF SAID AXLE MEANS AT EACH OF THE OUTER PORTIONS OF SAID OTHER END PORTION OF SAID FRAME MEANS, THE OTHER END PORTIONS OF SAID ARM MEMBERS SECURED TO SAID AXLE MEANS WITH EACH OF SAID END PORTIONS OF SAID AXLE MEANS HAVING AT LEAST ONE ARM MEMBER SECURED THERETO, WHEEL MEANS MOUNTED ON EACH OF SAID END PORTIONS OF SAID AXLE MEANS TO MOVABLY SUPPORT SAID LAND PLANE, LEVER ARM MEANS TO MOVABLY SUPPORT SAID LAND PLANE, LEVER ARM MEANS RIGIDLY SECURED AT ONE END PORTION TO SAID SHAFT AND POSITIONED ADJACENT SAID FRAME MEANS, A PLURALITY OF GUIDE MEMBERS OPERATIVELY MOUNTED ON SAID FRAME MEANS AND POSITIONED IN SPACED RELATION THEREON, A CONNECTING ROD SLIDEABLY MOUNTED IN SAID GUIDE MEMBERS AND OPERATIVELY CONNECTED AT ONE END PORTION TO SAID LEVER ARM, POWER MEANS OPERATIVELY CONNECTED TO SAID ONE END PORTION OF SAID FRAME MEANS AND OPERATIVELY CONNECTED TO THE OTHER END PORTION OF SAID CONNECTING ROD TO MOVE SAME TO CAUSE MOVEMENT OF SAID LEVER ARM AND SAID SHAFT TO RAISE AND LOWER SAID OTHER END PORTION OF SAID FRAME MEANS RELATIVE TO SAID WHEEL MEANS, BLADE MEANS RESILIENTLY SUPPORTED BY SAID FRAME MEANS AND EXTENDING TRANSVERSE THERETO AND POSITIONED THEREBENEATH, SAID BLADE MEANS HAVING A RELATIVELY SHARP BLADE EDGE PORTION EXTENDING THEREACROSS AND ENGAGEABLE WITH THE GROUND OR THE LIKE IN USE, SAID LAND PLANE BEING CONSTRUCTED AND ADAPTED TO BE PULLED BY A VEHICLE OR THE LIKE WHICH SAID BLADE MEANS IN ENGAGEMENT WITH THE GROUND IN LEVELING RELATION THERETO AND WITH SAID POWER MEANS OPERABLE TO MOVE SAID CONNECTING ROD TO ADJUST THE HEIGHT OF SAID FRAME MEANS AND SAID BLADE MEANS.