Automatic safety switch mechanism for a tractor mounted rotary power mower

Claim 1

IN A POWER MOWER INCLUDING A TRACTOR AND CUTTING MECHANISM SUSPENDED FROM SAID TRACTOR, MOTOR MEANS FOR DRIVING SAID CUTTING MECHANISM AND TRACTOR, POWER TRANSMITTING MEANS INTERCONNECTING SAID MOTOR MEANS AND CUTTING MECHANISM, MEANS FOR RAISING SAID CUTTING MECHANISM FROM A CUTTING POSITION TO AN ELEVATED INOPERATIVE POSITION WHEREBY SAID MOVEMENT OF SAID CUTTING MECHANISM EFFECTS DISENGAGEMENT OF SAID CUTTING MECHANISM FROM SAID MOTOR MEANS WHEN IN SAID INOPERATIVE ELEVATED POSITION, SWITCH MEANS MOVABLE BETWEEN OPENED AND CLOSED, SWITCH HOLDING ADAPTED TO STOP SAID MOTOR WHEN CLOSED, SWITCH HOLDING MEANS INTERCONNECTED WITH SAID CUTTING MECHANISM FOR MOVEMENT THEREWITH, SAID SWITCH HOLDING MEANS BEING ADAPTED TO ENGAGE AND HOLD SAID SWITCH IN OPEN POSITION WHEN SAID CUTTING MECHANISM IS IN ELEVATED INOPERATIVE POSITION AND ADAPTED TO MOVE AWAY FROM AND RELEASE SAID SWITCH FOR CLOSING WHEN SAID CUTTING MECHANISM IS MOVED TO CUTTING POSITION, RESILIENTLY MOUNTED SEAT STRUCTURE ADAPTED TO ENGAGE AND HOLD SAID SWITCH OPEN WHEN SAID SEAT IS OCCUPIED, SAID SEAT STRUCTURE BEING FURTHER ADAPTED TO MOVE AWAY FROM SAID SWITCH MEANS WHEN UNOCCUPIED AND THEREBY RELEASE SAID SWITCH FOR CLOSING, AND MEANS FOR CLOSING SAID RELEASED SWITCH.