Abstract: An elevator system including at least one elevator car mounted for movement in a building to serve the floors therein, and pushbuttons for entering calls for elevator service. Calls for elevator service initiated by the pushbuttons are sequentially displayed in a predetermined order on a display, which also displays the total number of unanswered calls in the system at any instant. In a preferred embodiment, the predetermined order sequentially displays the calls starting with the call associated with the lowest floor, and proceeding upwardly through the building to the highest floor of the building.

Abstract: An elevator system including an elevator car and electrical control for operating same. Capacitors continue to energize a car movement detector in the electrical control following an interruption in the electrical power supply, to enable any movement of the elevator car following such interruption to be detected and stored. A stored indication of car movement following an interruption in the electrical power supply is used to correct a car position device in the electrical control.

Abstract: An elevator system including an elevator car mounted in a building to serve the floors therein. A car call station in the elevator car includes a plurality of car call pushbuttons and associated lamps. Each pushbutton requires only a single set of contacts and a single conductor to register a car call, drive the associated lamp, and to provide a "button actuated" signal each time the pushbutton is actuated.

Abstract: Apparatus and methods for servicing an elevator system having a plurality of elevator cars under the supervision of a supervisory system processor. The system processor makes assignments to the cars according to a predetermined strategy. The servicing tool is connectable to the elevator system such that the positions of the cars in the building, the assignments to the cars by the system processor, and the status of the elevator cars, are displayed on a panel position and motion indicator or display. The servicing tool also includes pushbuttons for entering car and hall calls, and a mode select switch. The mode select switch includes an operating mode in which the system processor is maintained operational, and the controls of the cars are maintained operational, except the cars are inhibited from moving. The servicing method includes inhibiting the cars from moving while predetermined calls are entered into the system.