Lawnmower

Claim 1

A LAWNMOWER COMPRISING A BASE PLATE HAVING A CENTRAL PORTION, SAID BASE PLATE INCLUDING A PLURALITY OF FORWARDLY EXTENDING TEETH ADJACENT THE FORWARD PART OF SAID BASE PLATE AND A PLURALITY OF REARWARDLY EXTENDING TEETH ADJACENT THE REARWARD PART OF SAID BASE PLATE, AN ANNULAR MEMBER HAVING AN ENLARGED CENTRAL OPENING, SAID ANNULAR MEMBER INCLUDING A PLURALITY OF ARCUATE TEETH SPACED AROUND THE PERIPHERY OF SAID MEMBER AND A CIRCULAR GEAR ADJACENT SAID CENTRAL OPENING HAVING RADIALLY INWARDLY EXTENDING GEAR TEETH, SAID ANNULAR MEMBER BEING ROTATABLY MOUNTED ON TOP OF SAID BASE PLATE WITH SAID CENTRAL PORTION OF SAID BASE PLATE BEING EXPOSED BY SAID CENTRAL OPENING OF SAID ANNULAR MEMBER AND WITH SAID ARCUATE TEETH POSITIONED TO CO-ACT WITH SAID FORWARDLY AND REARWARDLY EXTENDING TEETH WHEN SAID ANNULAR MEMBER IS ROTATED, SAID CENTRAL PORTION BEING SUBSTANTIALLY A COMPLETE CIRCLE TO PROVIDE AN EXTENSIVE CIRCULAR SUPPORTING AREA BOUNDED BY SAID ANNULAR MEMBER, A BRACKET ATTACHED TO SAID BASE PLATE AND UPSTANDING THEREFROM, SAID BRACKET INCLUDING AN ARM HORIZONTALLY EXTENDING IN SPACED RELATIONSHIP ABOVE SAID ANNULAR MEMBER, A CARRIAGE MOVABLY MOUNTED ON SAID ARM, SAID CARRIAGE INCLUDING AN AXLE, A ROLLER ROTATABLY MOUNTED ON SAID AXLE, MEANS CO-ACTING BETWEEN SAID ARM AND SAID CARRIAGE FOR URGING SAID CARRIAGE DOWNWARDLY TO CAUSE SAID ROLLER TO PRESS DOWNWARDLY ON SAID ANNULAR MEMBER TO HOLD SAID ANNULAR MEMBER AGAINST SAID BASE PLATE, WHEEL MEANS ATTACHED TO SAID BASE PLATE TO ROLLING SUPPORT SAID LAWNMOWER FOR MOVEMENT OVER THE GROUND, AND DRIVE MEANS MOUNTED ON SAID CENTRAL PORTION OF SAID BASE PLATE AND INCLUDING A GEAR ENGAGING SAID CIRCULAR GEAR FOR ROTATABLY DRIVING SAID ANNULAR MEMBER.