An elevator sheave assembly with independently rotating sheaves includes a shaft having a longitudinal axis and a plurality of sheave subassemblies independently rotatable about the longitudinal axis of the shaft. Each of the plurality of sheave subassemblies includes a sheave having a running surface configured for frictional tractive engagement with a tension member, and at least one bearing rotatably connecting the sheave to the shaft. The elevator sheave assembly further includes a bearing spacer arranged between adjacent sheave subassemblies of the plurality of sheave subassemblies on the shaft to isolate rotation of the adjacent sheave subassemblies relative to one another. Each of the plurality of sheave subassemblies is independently rotatable such that the tension member associated with each of the plurality of sheave subassemblies operates on its own independently rotating sheave.

An elevator sheave assembly with independently rotating sheaves includes a shaft having a longitudinal axis and a plurality of sheave subassemblies independently rotatable about the longitudinal axis of the shaft. Each of the plurality of sheave subassemblies includes a sheave having a running surface configured for frictional tractive engagement with a tension member, and at least one bearing rotatably connecting the sheave to the shaft. The elevator sheave assembly further includes a bearing spacer arranged between adjacent sheave subassemblies of the plurality of sheave subassemblies on the shaft to isolate rotation of the adjacent sheave subassemblies relative to one another. Each of the plurality of sheave subassemblies is independently rotatable such that the tension member associated with each of the plurality of sheave subassemblies operates on its own independently rotating sheave.

A block comprises low friction sheave with inner hole, a U-shaped frame having two holes on the curved section on the top of the frame, a continuous loop and a lock bone, wherein the sheave and U-shaped frame are connected non-rigidly by the continuous loop, which is inserted through the holes on the curved section on the top of the frame and through the inner hole of the sheave, and the continuous loop and the whole structure of the block are kept together and locked by the lock bone.

An apparatus for moving ropeway vehicles in a ropeway system includes at least one conveying wheel being adjustable in height relative to the vehicles by a lifting device to be brought into abutment against the vehicles for displacing the vehicles along a track using the conveying wheel. An electric lifting device has an electric drive motor with a threaded sleeve or the like to be retained in its height position and rotated by the drive motor and a lifting spindle to be adjusted in height by the threaded sleeve for adjusting the conveying wheel in height. Upper and lower end surfaces of the threaded sleeve and the lifting spindle have stops located approximately in planes normal to the direction of rotation of the threaded sleeve or the like which, in upper and lower end positions of the lifting spindle, abut one another preventing further rotation of the threaded sleeve.

An improved pulley for a winch is described, in contact with at least one section of rope included between an inlet section connected to a working load and an outlet section connected to a resisting load, comprising a plurality of peripheral supports deformable depending on a length variation of such section of rope.

An improved pulley for a winch is described, in contact with at least one section of rope included between an inlet section connected to a working load and an outlet section connected to a resisting load, comprising a plurality of peripheral supports deformable depending on a length variation of such section of rope.

The present invention relates generally to rope drives working with high-strength fiber ropes such as crane hoists, boom adjustment gear, trolley traveling gear, etc. The invention in this respect in particular applies to hoist drums for the rope hoist winch of such a fiber rope drive having a drum jacket body which is provided with grooving at the peripheral side and having two guard plates adjacent to the drum jacket body at the end sides. The invention further relates to a rope pulley for such a fiber rope drive having a rotatably supported pulley body whose jacket surface has at least one rope groove. In accordance with the invention, the rope grooves have a flat-pressed, round groove contour which differs from the circular and which has a larger radius of curvature in the region of the groove base than in the region of the groove flanks adjacent thereto.

A rope wheel assembly of an elevator includes a frame, a plurality of rope wheels for guiding ropes of the elevator, and a plurality of bearings. The rope wheels are mounted coaxially on the frame such that they are rotatable relative to the frame as well as relative to each other. The rope wheel assembly includes a central shaft passing through the rope wheels, which central shaft is non-rotatable relative to the frame, and the rope wheel assembly includes a hollow cylinder surrounding the central shaft, the hollow cylinder being mounted on the central shaft rotatably relative to the central shaft, each said rope wheel being mounted on the cylinder rotatably relative to the cylinder. The rope wheel assembly includes a bearing axially between rope wheels that are next to each other via which bearing they are supported on each other in axial direction. A compensator and an elevator arrangement implementing the rope wheel assembly are also disclosed.

A block comprises low friction sheave with inner hole, a U-shaped frame having two holes on the curved section on the top of the frame, a continuous loop and a lock bone, wherein the sheave and U-shaped frame are connected non-rigidly by the continuous loop, which is inserted through the holes on the curved section on the top of the frame and through the inner hole of the sheave, and the continuous loop and the whole structure of the block are kept together and locked by the lock bone.