Abstract: Provided is a method of installing a power cable in a wind turbine tower, in particular for transportation, the method including: arranging a section of the cable within the tower, the section having a length, in particular by at least an upper excess cable por-tion, greater than the tower height, by forming a cable loop within the tower, wherein an angle enclosed between a normal of a cable loop plane and the longitudinal direction of the tower is between 70° and 110°.

Abstract: A wind turbine having a tower having a top end and a bottom end; a first eccentric mechanism connected to a turbine rotor, the turbine rotor at the top end of the tower; a second eccentric mechanism connected to an electric generator, the electric generator being at the bottom end of the tower; and a plurality of tensile links connecting the first and second eccentric mechanisms.

Abstract: A flying apparatus having a frame configured to couple to a high voltage tether system, and at least one motor module mounted to the frame, the module including a holding structure attached to the frame, a rotating structure, including a rotor shaft, configured to rotate relative to the holding structure, a rotor attached to the rotor shaft and a plurality of motors attached to the holding structure, each including a drive shaft configured to engage with the rotor shaft, wherein the motors are configured to receive electrical energy from the tether system and drive the drive shafts to create a torque on the rotor shaft to thereby rotate the rotor and create lift to fly the apparatus from the ground to a desired position aloft while remaining coupled to the tether system.

Abstract: A wind power system driven by multiple rotary devices strung on a cable.

Abstract: A balanced power transmission device having specific utility for windmill applications utilizing conventional propellers on a horizontal shaft. The horizontal propeller shaft is located on a tower and drives a pair of freely rotating gears in opposite directions mounted on vertical coaxial shafts. The opposite rotating gears are each variably connected to counter-rotating coaxial shafts through individual ratchets that cause the shafts to rotate in opposite directions and thereby balance out any residual torque. The counter rotating shafts extend to the base of the supporting tower and are connected in a driving relationship through a pair of gears each directly connected to the coaxial shafts. The pair of gears drive a single bevel gear which in turn is connected to a suitable generator located on the ground for generating electric energy. The counter rotating coaxial shafts prevent any tendency of the propeller shaft to rotate about the drive shafts due to torque caused by propeller rotation.

Abstract: A wind machine has a tower frame formed by four converging beams. At the top of the tower is a gear head connected to a wind driven rotatable multibladed rotor. Connected to the gear head is a vertical shaft which is reciprocated vertically as the rotor rotates. Bearings above and below the gear head enable the gear head to drive the shaft in both downward pushing and upward pulling modes. The system includes a counterbalance assembly having tubular arms at opposite sides of the vertical shaft. The arms are slidably carried by sleeves pivoting in vertical planes on stationary pillow blocks secured to the tower frame. Inner ends of the arms are connected to the vertical shaft. Weights inside the arms are adjustably positioned on threaded rods, and both rods and weights can be locked in place for adjusting the counterbalancing effect of the assembly with respect to the vertical shaft and load.

Abstract: A multiblade, wind-driven, variable pitch propeller is used in a wind electric plant for the generation of electrical power from wind forces, and the propeller is rotatable in a plane at an angle to the tower axis, enabling larger propellers to be used without propeller-tower interference and also reducing the distance between the propeller and gear case. A snubber arrangement is provided on the propeller blade return springs to slow the governor action and prevent abrupt pitch changes and damaging flutter of the blades, and a self-centering, double-acting pivot washer is provided between the propeller blades and the return springs to ensure free pivoting and long life of the spring connecting bolts. Adjustable positive blade stop bolts are engaged directly between the hub and the propeller blades to limit return movement thereof.