Abstract: The invention relates to an emergency device for the raising or lowering of elevators trapped between floors comprising a first geared motor (1) transmitting a rotational movement to the output shaft of the traction machine (3) of the car of the elevator in the emergency situation with the elevator trapped between floors. This first geared motor (1) is connected by means of a cable (33) to a second direct current geared motor (8) located in a control cabinet (44) which upon rotating, acts like a generator feeding electric current to the first geared motor (1), a manual actuation crank (43) determining the mentioned rotational movement being coupled to the second geared motor (8). In order to prevent the reversal of energy flow, it has a two-way clutch (4) or micro-circuit breakers (35, 36) braking the first geared motor (1) when the actuation crank (43) starts rotating due to this reversal of flow.

Abstract: The present invention relates to a rope and belt for a speed governor for elevators and associated sheaves that is applicable to speed governors for elevators. The rope comprises high-strength steel wires clustered in strands among which a core is in turn formed which is completely coated by a polymeric material which is introduced in the gaps defined between the strands, obtaining an outer polymeric surface with a diameter that is slightly greater than the diameter of the core. The belts cluster at least two metallic ropes comprising high-strength steel wires completely coated with a polymeric material. The sheaves designed for the ropes are semicircular or notched semicircular sheaves having a low aggression and reduced diameter and high level of adherence, determining a high coefficient of friction between the coated rope and the sheave, and a high strength of the rope against fatigue due to bending and wear is also obtained.