An elevator system constructed in accordance to one embodiment of the present disclosure includes an elevator car, a counterweight, a sheave assembly, a suspension rope, a compensation rope, a first optical sensor assembly and a controller. The suspension rope has a first suspension end coupled to the elevator car and a second suspension end coupled to the counterweight. The first compensation rope has a first compensation end coupled to the elevator car and a second compensation end coupled to the counterweight. The first optical sensor assembly can have a first optical sensor pair including a first emitter and a first receiver. The first emitter is configured to emit a first beam to be received by the first receiver. The first optical sensor pair is configured to detect interruption of the first beam by the first compensation rope. The controller controls movement of the elevator car based on the detected interruption.

According to one aspect of the present invention, provided is a balancing system comprising: an elevator winding drum connected to an elevator car; a center gear part connected to a first driving shaft of the elevator winding drum and including a first center gear, and an outer gear part including a first outer gear which contacts and rotates with the first center gear, and, when the elevator winding drum receives force in a first direction by the elevator car, the center gear part applies force with respect to the elevator winding drum in the opposite direction of the first direction by the force applied from the outer gear part.

An elevator arrangement includes first and second movable elevator units, the first unit being an elevator car and the second unit being a counterweight, and a roping system including a first roping portion suspending the first and second elevator units, and being locked at least to the second elevator unit, a second roping portion being suspended by the first elevator unit and the second elevator unit, and being locked at least to the second elevator unit. The first and the second roping portions are successive portions of a roping passing unbroken via a locking arrangement provided at the second elevator unit, the locking arrangement locking the roping to the second elevator unit between the first and the second portions. In a method in constructing an elevator, the locking arrangement is unlocked and thereafter the roping is repositioned with respect to the locking arrangement and thereafter the locking arrangement is relocked.

According to one aspect of the present invention, provided is a balancing system comprising: an elevator winding drum connected to an elevator car; a center gear part connected to a first driving shaft of the elevator winding drum and including a first center gear; and an outer gear part including a first outer gear which contacts and rotates with the first center gear, and, when the elevator winding drum receives force in a first direction by the elevator car, the center gear part applies force with respect to the elevator winding drum in the opposite direction of the first direction by the force applied from the outer gear part.

A method and assembly includes pre-tensioning an elevator suspension member to adjust low load elongation of tension members within the elevator suspension member prior to placing the elevator suspension member in operation for an elevator.

An elevator load bearing member includes a plurality of load bearing wires, a polymer-based conductive adhesive coating on each of the plurality of the wires, and a jacket surrounding the wires. The jacket is adhered to the wires by the polymer-based conductive adhesive coating. A method of making a load bearing member for an elevator system is also disclosed.

An elevator load bearing member includes a plurality of load bearing wires, a polymer-based conductive adhesive coating on each of the plurality of the wires, and a jacket surrounding the wires. The jacket is adhered to the wires by the polymer-based conductive adhesive coating. A method of making a load bearing member for an elevator system is also disclosed.