Reeling of load and safety cables or ropes for cages suspended in front of buildings or the like

Claim 1

In a reeling device for at least one load rope or cable and at least one safety rope or cable both being attached to a cage for suspending the cage to be lifted and lowered and used, for example, in front of buildings, the device including, a single reeling drum having a spiral groove; a winch-motor connected to the drum for driving the drum in one or the opposite direction; the load and safety ropes or cables being connected to the drum, so that upon rotation of the drum by operation of the winch motor in one direction, a first one of the ropes or cables is wound to locate in the spiral groove of the drum and in adjacent loops thereon, thereby establishing a second spiral groove, a second one of the ropes or cables locating in the second groove during the rotation, the first one of the ropes or cables having one additional loop to start the second spiral groove for placing the second one of the ropes or cables therein; the first one of the ropes or cables as being wound in the spiral groove of the drum establishing a first layer on the drum having a diameter larger than a diameter of thE second one of the ropes or cables as being wound concurrently in a second layer on top of the first layer and in the second spiral groove as it is being established by winding of the first rope or cable; and means connected to one of the ropes or cables and being continuously effective during winding and unwinding of the ropes or cables onto and from the drum for continuously providing an effective length change of the portion of the one cable or rope as extending from the drum and to the cage where attached thereto, in addition to the length change resulting from lifting or lowering the cage, for compensating for differences in reeled lengths of the load and safety ropes due to difference diameters of said layers, for obtaining similar lengths displacement of the load and safety cables or ropes at the cage.