An overhead-line using system includes: a plurality of supports; a main rope supported by the supports and configured such that both ends of the main rope are fixed; a work rope movably supported by the main rope; a winding device configured to wind up the work rope; a moving device movably supported by the main rope and connected to the work rope, the moving device being movable in the air when the work rope is wound up by the winding device; and a power generator configured to move along with movement of the work rope. The power generator generates electric power by moving relative to the main rope.

A skyline log conveying system having a skyline for extending between two elevated supports, one at or above a landing at which logs are deposited and another at a lower position at least as low as an area from which logs are to be moved. A carriage is rollably mounted to the skyline. A grapple is suspended from the carriage, the grapple having closed and opened positions for grasping and releasing logs. A hydraulic pump is mounted to the carriage. A rotatable member is driven by the skyline with the rolling of the carriage on the skyline for driving the hydraulic pump to generate hydraulic pressure. At least one accumulator is in hydraulic communication with the hydraulic pump, the at least one accumulator capable of storing pressure when hydraulic pressure is transmitted to it by the hydraulic pump. A hydraulic ram is hydraulically interconnected with the at least one accumulator and mounted to the grapple to selectively close the grapple to facilitate the grasping of logs.

The disclosure is directed at a robotic platform for use in large workspaces. The disclosure includes a moving platform that is controlled by a set of cable actuators via a set of cables. The cables are also connected to at least one of a counterbalancing and/or a counterweight system to reduce the impact of forces being experienced on the moving platform on the set of cable actuators. In one embodiment, at least two of the set of cable actuators are connected with a single closed cable loop.

A warehouse with a cable driven transport vehicle for movement of items within the warehouse, where the cable driven storage and retrieval machine comprises a load handling platform that is suspended by cables, which are variable in length and tensioned by cable tensioning means, such that the load handling platform can access a given workspace of the warehouse, and where the cable tensioning means themselves are made to be moveable within the given workspace.

A conveying device includes: a main movement body; a main conveying mechanism that conveys the main movement body; and a controlling device that controls operation of the main conveying mechanism including a plurality of winches attached to the main movement body and multiple cables one wound around each winch; each winch includes a cylindrical drum rotatable about an axis line thereof and driving device that rotates the drum, and is wound around corresponding one of the drums of the respective corresponding winches helically in an axis direction of the drums multiple times, and have distal ends supported by supporting bodies corresponding to the respective winches; and the controlling device conveys the main movement body to an arbitrary position on a conveying path between the supporting bodies corresponding to the respective winches by controlling operation of a driving device of each winch disposed on the main movement body.

A skyline log conveying system having a skyline for extending between two elevated supports, one at or above a landing at which logs are deposited and another at a lower position at least as low as an area from which logs are to be moved. A carriage is rollably mounted to the skyline. A grapple is suspended from the carriage, the grapple having closed and opened positions for grasping and releasing logs. A hydraulic pump is mounted to the carriage. A rotatable member is driven by the skyline with the rolling of the carriage on the skyline for driving the hydraulic pump to generate hydraulic pressure. At least one accumulator is in hydraulic communication with the hydraulic pump, the at least one accumulator capable of storing pressure when hydraulic pressure is transmitted to it by the hydraulic pump. A hydraulic ram is hydraulically interconnected with the at least one accumulator and mounted to the grapple to selectively close the grapple to facilitate the grasping of logs.

A conveying device includes: a main movement body; a main conveying mechanism that conveys the main movement body; and a controlling device that controls operation of the main conveying mechanism including a plurality of winches attached to the main movement body and multiple cables one wound around each winch; each winch includes a cylindrical drum rotatable about an axis line thereof and driving device that rotates the drum, and is wound around corresponding one of the drums of the respective corresponding winches helically in an axis direction of the drums multiple times, and have distal ends supported by supporting bodies corresponding to the respective winches; and the controlling device conveys the main movement body to an arbitrary position on a conveying path between the supporting bodies corresponding to the respective winches by controlling operation of a driving device of each winch disposed on the main movement body.

An overhead-line using system includes: a plurality of supports; a main rope supported by the supports and configured such that both ends of the main rope are fixed; a work rope movably supported by the main rope; a winding device configured to wind up the work rope; a moving device movably supported by the main rope and connected to the work rope, the moving device being movable in the air when the work rope is wound up by the winding device; and a power generator configured to move along with movement of the work rope. The power generator generates electric power by moving relative to the main rope.

Devices, systems, and methods for a multi-winch lifting apparatus and load movement are disclosed. The lifting apparatus includes a mounting base. At least two lateral winches are attached to the mounting base. Each of these lateral winches includes its own lateral line. A lifting winch is also attached to the mounting base. The lifting winch also includes a lifting line.

A method of removing a wind turbine component includes assembling a transport system having a track, one or more support frames, and a carriage movably coupled to the track, the transport system having a first end positioned inside the tower and a second end positioned outside of the tower such that the track extends through an opening in the tower; raising the wind turbine component off of a platform located within the tower and above the door; moving at least part of the platform to allow the component to pass; lowering the wind turbine component onto the carriage; moving the carriage along the track from inside the tower to outside the tower; and removing the wind turbine component from the carriage. A transport system having a track, one or more support frames, and a carriage is also disclosed.