Hydraulic turbines; Waterwheels; Vertical-axis windmills having an AC generator on a support base for a main shaft to which a rotary shaft of the generator being connected; Vertical-axis windmills having a DC generator on a support base for a main shaft to which a rotary shaft of the generator being connected; Windmills ; Vertical-axis wind power generators in which a rotary shaft of an AC dynamo is connected to a main shaft of the windmill which supports a rotor horizontally; Vertical-axis w...