Wind turbine apparatus

A wind turbine apparatus (1, 101) for use in movement of components of a wind turbine, the wind turbine apparatus comprising an upright support means (4), the upright support means (4) being adaptable to be set on a surface below a load in use, such that the weight of the load is transferred to the surface, the wind turbine apparatus (1, 101) comprising a load bearing means (2, 102) for engaging a load, the load bearing means (2, 102) being operably coupled with the upright support means (4) and being configured to be moveable laterally when bearing a load, and wherein the wind turbine apparatus (1, 101) further comprises a means (3, 103) for raising and lowering the load bearing means (2, 102), wherein the means (3, 103) for raising or lowering the load bearing means (2, 102) comprises an upright guide apparatus (12, 113a-c) for guiding movement of the load bearing means (2, 102), the upright guide apparatus (12, 113a-c) comprising an elongate rail (13), the elongate rail being a threaded spindle, and wherein the means (3, 103) for raising and lowering the load bearing means (2, 102) comprises a drive means (11) for raising or lowering the load bearing means (2, 102), the drive means (11) being operable to move the load bearing means (2, 102) along the upright guide apparatus (12, 113a-c), and wherein the means (3, 103) for raising or lowering the load bearing means (2, 102) comprises one or more carriages (14, 114a-c) for carrying the load bearing means (2, 102) along the upright guide apparatus (12, 113a-c), the carriage (14, 114a-c) being operably engaged with the upright guide apparatus (12, 113a-c) characterised in that the drive means (11) is operable to rotate the elongate rail (13) thereby moving the carriage (14, 114a-c) and the load bearing means (2, 102) along the elongate rail (13).