Apparatus for conditioning lawns

Claim 1

LAWN-SEEDING APPARATUS COMPRISING, IN COMBINATION, A FRAME ADAPTED TO BE DRAWN OVER A SOIL SURFACE; A PLURALITY OF FURROW-CUTTING ELEMENTS EACH INCLUDING A ROTATABLE SHAFT, ARM MEANS JOURNALLING SAID SHAFT AND EXTENDING FORWARDLY THEREFROM, A PLURALITY OF DISKS MOUNTED IN PARALLEL SPACED RELATION ON SAID SHAFT FOR ROTATION THEREWITH ABOUT A SUBSTANTIALLY HORIZONTAL AXIS OF ROTATION, AND MEANS FOR INDIVIDUALLY SUPPORTING SAID SHAFT AT A FIXED HEIGHT ABOVE THE SOIL SURFACE, EACH OF SAID DISKS HAVING A CIRCUMFERENTIAL CUTTING EDGE PORTION COMPRISING A PLURALITY OF SOIL-CUTTING TEETH REGULARLY DISPOSED AROUND THE DISK PERIPHERY AND LYING IN A PLANE PERPENDICULAR TO THE AXIS OF ROTATION OF THE DISK FOR ENGAGING THE SOIL SURFACE TO CUT A FURROW THEREIN, SAID ARM MEANS OF SAID ELEMENTS BEING INDIVIDUALLY PIVOTALLY CONNECTED TO SAID FRAME FORWARDLY OF THE RESPECTIVE SHAFTS OF SAID ELEMENTS TO SUSPEND SAID ELEMENTS FROM SAID FRAME IN SUCH MANNER THAT SAID ELEMENTS ARE VERTICALLY MOVABLE RELATIVE TO EACH OTHER AND ARE DISPOSED TO BE DRAWN OVER THE SOIL SURFACE WITH THE FRAME IN SIDE-BY-SIDE SPACED GANGED RELATION AXIALLY TRANSVERSE OF THE DIRECTION OF TRAVEL TO CUT SUBSTANTIALLY PARALLEL STRIPS OF FURROWS IN THE SOIL SURFACE, SAID DISKS ON EACH SAID SHAFT BEING SPACED APART FOR CUTTING INDIVIDUAL PARALLEL FURROWS IN THE SOIL SURFACE AND FOR LEAVING UNDISTURBED PARALLEL STRIPS OF SOIL BETWEEN SAID FURROWS FOR PRESERVATION OF EXISTING TURF; MEANS FOR ROTATING THE SHAFTS OF SAID ELEMENTS IN A DIRECTION OPPOSITE TO THE DIRECTION OF TRAVEL; SEED-HOPPER MEANS MOUNTED ON SAID FRAME FOR DISCHARGING SEED ONTO THE SOIL SURFACE AT A LOCALITY REARWARD OF SAID DISKS TO DEPOSIT SEED IN SAID FURROWS; AND ROLLER MEANS HAVING A CORRUGATED ROLLER SURFACE, JOURNALLED IN SAID FRAME REARWARDLY OF SAID LASTMENTIONED LOCALITY FOR ROLLING THE SOIL SURFACE TO CLOSE SAID FURROWS AFTER DEPOSIT OF SEED THEREIN.