A crane may comprise a mast that includes a base end and a top end located opposite the base end, at least one support beam fixedly coupled to the mast adjacent the top end of the mast, a first runway beam fixedly coupled to the at least one support beam, and a second runway beam spaced from the first runway beam. In some embodiments, the first runway beam defines a first end and a second end, and the mast is located closer to the first end than the second end. The crane may also comprise a bridge movably coupled to the first runway beam and the second runway beam, a trolley movably coupled to the bridge, and a hoist coupled to the trolley. In some embodiments, the crane only comprises one mast.

A wind turbine tower, wind turbine tower installation apparatus and methods of erecting a wind turbine tower. The wind turbine tower installation apparatus has a frame having a guide for positioning the apparatus on an installed portion of a tower, a platform for supporting wind turbine components on the frame, and a mechanism for transversely positioning the supported wind turbine component in alignment with the tower. A lifting mechanism is provided for moving the apparatus longitudinally up and down the tower. The apparatus further has an adaptor frame defining a collar for receiving and aligning the free end of the installed portion of the tower and the adjacent end of the subsequent tower section. The wind turbine support tower has a mating interface having complimentary sleeve portions one of which has a radially displaceable locking ring for engaging a radially extending feature of the other sleeve portion.

A crane system includes a structural truss positioned within a central opening defined by an inside surface of an annular tower, a crane mast connected to an outside surface of the annular tower, and a jib arm connected to the crane mast.

The invention relates to a climbing system (1) for a crane. The system comprises a climbing apparatus (2) for inserting a mast section (3) or for removing a mast section (3) from a tower structure (4) of a crane, and a control unit (5) for controlling the climbing apparatus (2). The system is furthermore characterized in that the system comprises a first sensor (51) for monitoring a state of a connection means of the climbing apparatus (2) and/or the tower structure (4), wherein the first sensor (51) is connected to the control unit (5). A climbing process of a crane can thus be simplified and the safety of the climbing process can be increased.

A wind turbine tower installation apparatus and methods of erecting a wind turbine tower are disclosed. The wind turbine tower installation apparatus is arranged for installing a tower has a plurality of longitudinally stackable sections. The apparatus has a frame comprising a guide for positioning the apparatus on an installed tower portion, a platform for supporting wind turbine components on the frame, and a mechanism for transversely positioning the supported wind turbine component in alignment with the tower. A lifting mechanism is provided for moving the apparatus longitudinally up and down the installed tower portion. The apparatus further has a yaw control thruster mounted to the frame and configured to provide a counter acting force to rotational wind loads in use.

A wind turbine tower installation apparatus and methods of erecting a wind turbine tower are disclosed. The wind turbine tower installation apparatus is arranged for installing a tower has a plurality of longitudinally stackable sections. The apparatus has a frame comprising a guide for positioning the apparatus on an installed tower portion, a platform for supporting wind turbine components on the frame, and a mechanism for transversely positioning the supported wind turbine component in alignment with the tower. A lifting mechanism is provided for moving the apparatus longitudinally up and down the installed tower portion. The apparatus further has a yaw control thruster mounted to the frame and configured to provide a counter acting force to rotational wind loads in use.

Crane-support apparatus for mounting a tower crane onto a side of a high-rise building under construction, enabling ascending of the tower crane according to the upwards progression of the building construction, including a chassis configured to support a climbing frame of the tower crane mast, and at least one reinforcement element. A distal end of the chassis is hingedly attached to the distal end of the reinforcement element. In a deployed, support mode, the chassis is aligned in a horizontal position, and the reinforcement element is aligned in a slanted position. In a folded, mobilization mode, the chassis and the reinforcement element are configured to be pulled by at least one lifting cable at the distal end of the chassis and the reinforcement element with the chassis and the reinforcement element hingedly folded and aligned in vertical positions. A method for using the apparatus in both modes is also provided.

The present invention relates to a crane tower comprising a crane tower base, which has a crane tower or a crane tower element fixed thereto and from which the crane tower extends upwards, and a tension element for bracing the crane tower 1 on the crane tower base. The tension element has one of its two ends connected to the crane tower base and its respective other end connected to the crane tower or to a coupling element that is connected to the crane tower. The crane tower is characterized in that the tension element extends outside of the crane tower. It is thus possible to reduce the dimensions of the crane tower without causing any change of bending resistance or to increase the bending resistance on the basis of the same dimensions.

An energy storage and delivery system includes an elevator operable to move blocks from a lower elevation to a higher elevation to store energy and from a higher elevation to a lower elevation to generate electricity. A winch assembly is movably coupled to a cable that is coupled to the elevator. The winch assembly has planetary gear assemblies, brakes that selectively engage at least a portion of the planetary gear assemblies, and a spool coupled to the cable. A drive shaft extends between a motor-generator and the winch assembly. A brake is operable so that the spool rotates to reel-in the cable to raise the elevator to move a block from a lower elevation to a higher elevation to store energy or so that the spool rotates to reel-out the cable to lower the elevator to move a block from a higher elevation to a lower elevation to generate electricity.

In a working machine, a plurality of diagonal members includes a plurality of first diagonal members for connecting a first main member and a second main member with each other, the first diagonal members including a first nearest diagonal member located nearest to a first connector connected to an end of the first main member. A first reinforcement part extends from the first nearest diagonal member to the second main member or a second connector in a first specific direction for connecting the first nearest diagonal member and, the second main member or the second connector connected to an end of the second main member with each other.