Elevator position indicator system

Claim 1

IN AN ELEVATOR SYSTEM, A STRUCTURE HAVING A PLURALITY OF LANDINGS INCLUDING A FIRST TERMINAL LANDING, A SECOND TERMINAL LANDING AND AN INTERMEDIATE LANDING LOCATED BETWEEN THE TERMINAL LANDINGS, AN ELEVATOR CAR, MEANS MOUNTING THE ELEVATOR CAR FOR MOVEMENT IN TWO DIRECTIONS RELATIVE TO THE STRUCTURE TO SERVE THE LANDINGS, LANDING FIRST CALL REGISTERING MEANS OPERABLE FROM SAID INTERMEDIATE LANDING FOR REGISTERING A CALL FOR ELEVATOR SERVICE IN A FIRST OF SAID TWO DIRECTIONS, FIRST CANCELLING MEANS FOR CANCELLING A CALL REGISTERED BY SAID LANDING FIRST CALL REGISTERING MEANS, LANDING SECOND CALL REGISTERING MEANS OPERABLE FROM SAID INTERMEDIATE LANDING FOR REGISTERING A CALL FOR ELEVATOR SERVICE IN THE SECOND OF SAID TWO DIRECTIONS, SECOND CANCELLING MEANS FOR CANCELLING A CALL REGISTERED BY SAID LANDING SECOND CALL REGISTERING MEANS, INDICATING MEANS DISPOSED AT SAID INTERMEDIATE LANDING, A HOUSING FOR SAID INDICATING MEANS, SAID INDICATING MEANS HAVING INDICIA FOR DESIGNATING THE POSITION OF THE ELEVATOR CAR WITH RESPECT TO THE STRUCTURE, SAID HOUSING HAVING AN APERTURE FOR VIEWING THE ONE OF SAID INDICIA WHICH DESIGNATES THE POSITION OF THE ELEVATOR CAR AT ANY GIVEN TIME, FIRST ILLUMINATING MEANS RESPONSIVE TO THE REGISTRATION OF A LANDING FIRST CALL BY SAID LANDING FIRST CALL REGISTERING MEANS FOR SAID INTERMEDIATE LANDING FOR ILLUMINATING SAID ONE