(EP483357-A)      In the method, an axle (4) with unbalanced weights (3) is raised to an assigned height over a floating device (1) and is released until a movable support (5) contacts a fixed support (6) on the float (1). The potential energy of the weights (3) is converted into kinetic energy during falling, which moves the fixed support (6) with float (1), while the weights (3) rotate about the axle (4). The forces of inertia then lift the axle (4) with the weights (3) until a movable support (5) contacts an oscillation generator (2) with upward movement limiting devices (8).    The float (1) starts rising, while the limiting devices (8) are in a relative fixed position, reducing time of rotation of the weights (3) about the axle (4). During lifting of the axle (4) by the float (1) rotation of the weights (3) about the axle (4), the centre of mass of the weights (3) describes an assigned trajectory (10). The weights (3) rotate about the axle (4) during rise and fall of the float (1) and maintain their accumulated energy, which can be transformed into electrical energy.    USE -   Conversion of wave energy into useful form of energy.    (RU2016223-C1)      In the method an axle with unbalanced weights is raised to an assigned height over a floating device and is released until a movable support contacts a fixed support on the float. The potential energy of the weights is converted into kinetic energy during falling, which moves the fixed support with float, while the weights rotate about the axle. The forces of inertia then lift the axle with the weights until a movable support contacts an oscillation generator with upward movement limiting devices.    The float starts rising, while the limiting devices are in a relative fixed position, reducing time of rotation of the weights about the axle. During lifting of the axle by the float and rotation of the weights about the axle, the centre of mass of the weights describes an assigned trajectory. The weights rotatable about the axle during rise and fall of the float and maintain their accumulated energy, which can be transformed into electrical energy.    USE -   Conversion of wave energy into useful form of energy.    (EP483357-B1)      A method for converting wave energy by means of an oscillator (2,24) installed on a floating means (1), comprising at least one unbranched mass (3, 27,28) which is movable about an axis of rotation (4, O5,O6,O7,O8), an initial velocity (vo) being imparted to the unbalanced mass (3, 27,28), and the accelerated movement thereof on a prescribed path (9,10, 9',10') being produced in order to accumulate energy by the unbalanced mass (3, 27,28), the movement comprising a complete rotation of the unbalanced mass (3, 27,28) and a displacement of the axis of rotation (4, O5,O6,O7,O8) in a plane substantially perpendicular to the floating means (1) as a result of the action upon it of the floating means (1) during the cycle of upward movement of the latter on a wave, the energy accumulated in the unbalanced mass being extracted during the upward movement of the floating means (1) on the wave, characterised in that during each cycle of upward and downward movement of the floating means (1), the unbalanced mass (3, 27,28) is rotated more than once about its axis of rotation (4, O5,O6,O7,O8), while the axis of rotation (4, O5,O6,O7,O8) of the unbalanced mass (3, 27,28) is displaced several times under the action of and in the direction of action of the floating means (1), at least one displacement of the axis of rotation (4, O5,O6,O7,O8) taking place during each complete rotation of the unbalanced mass (3, 27,28) within prescribed time intervals, while the displacement direction of the axis of rotation (4, O5,O6,O7,O8) is reversed with each change of the cycles of upward and downward movement of the floating means (1) on the wave, keeping the energy accumulated in the unbalanced mass (3, 27,28), the extraction of energy additionally being effected during the downward movement of the floating means (1).