Magnetic mailbox signal

Claim 1

IN A MAILBOX INCLUDING A HOUSING HAVING VERTICALLY DISPOSED SIDE PORTIONS, A TOP PORTION EXTENDING OVER THE UPPER ENDS OF SAID SIDE PORTIONS, A NORMALLY VERTICALLY DISPOSED DOOR ARRANGED SO AS TO CLOSE ONE END OF SAID HOUSING AND HAVING THE LOWER END HINGEDLY CONNECTED TO THE LOWER ENDS OF SAID SIDE PORTIONS FOR MOVEMENT FROM THE NORMAL POSITION TO A POSITION SWUNG OUTWARDLY OF SAID HOUSING, AN OUTWARDLY PROJECTING FINGER CARRIED BY SAID DOOR ADJACENT THE UPPER END OF THE LATTER, AND A KEEPER PROJECTING FROM SAID HOUSING TOP PORTION, SAID FINGER AND KEEPER HAVING COACTING DETENT MEANS THEREON FOR RELEASABLY HOLDING SAID DOOR IN THE NORMAL POSITION, SAID KEEPER BEING PROVIDED WITH A HOLE THERETHROUGH, AN L-SHAPED BRACKET DISPOSED WITH THE SHORT LEG THEREOF HORIZONTAL AND WITH THE LONG LEG THEREOF VERTICAL AND ABOVE SAID SHORT LEG, FASTENING MEANS EXTENDING THROUGH A HOLE PROVIDED IN THE SHORT LEG AND THROUGH THE HOLE IN SAID KEEPER, SECURING SAID SHORT LEG TO SAID KEEPER, A VERTICALLY DISPOSED LEVER NORMALLY DISPOSED EXTERIORLY OF AND ADJACENT SAID DOOR WITH THE PORTION ADJACENT THE UPPER END EXTENDING ABOVE SAID DOOR AND WITH THE PORTION ADJACENT THE LOWER END ABUTTING SAID DOOR, SAID LEVER BEING CONNECTED TO SAID BRACKET LONG LEG FOR SWINGING MOVEMENT IN A VERTICAL PLANE FROM THE NORMAL POSITION TO A SUBSTANTIALLY HORIZONTAL POSITION WITH THE LEVER UPPER END PORTION ABOVE AND ADJACENT TO SAID HOUSING TOP PORTION AND WITH THE LEVER LOWER END PORTION ABOVE AND FREE OF SAID DOOR, AND RELEASABLE HOLDING MEANS ON SAID LEVER LOWER END PORTION ENGAGING SAID DOOR WHEN SAID LEVER IS IN THE NORMAL POSITION.