Abstract: An energy production device including a frame, a body, first and second aligned input shafts projecting from two opposite faces of the body, and a third input shaft aligned with an output shaft. The direction of the first and second input shafts is perpendicular to the direction of the third input shaft and of the output shaft. A mechanical connection is provided at the proximal part of each of the shafts which is within the body. The mechanical connection operates with a transmission system within the body so that any rotation movement on any of the input shafts is converted into a unidirectional rotation movement on the output shaft. A distal end of the third input shaft is fixed to the frame. A bearing is fixed on the frame, into which the distal end of the output shaft is freewheeling.

Abstract: An energy production device including a frame, a body, first and second aligned input shafts projecting from two opposite faces of the body, and a third input shaft aligned with an output shaft. The direction of the first and second input shafts is perpendicular to the direction of the third input shaft and of the output shaft. A mechanical connection is provided at the proximal part of each of the shafts which is within the body. The mechanical connection operates with a transmission system within the body so that any rotation movement on any of the input shafts is converted into a unidirectional rotation movement on the output shaft. A distal end of the third input shaft is fixed to the frame. A bearing is fixed on the frame, into which the distal end of the output shaft is freewheeling.

Abstract: A device producing unidirectional rotation motion as output from any bidirectional rotation motion as input, includes: —a first input rotation axis (1); —a second input rotation axis (2), orthogonal to the first input rotation axis (1); —an output rotation axis; transmission elements (6A, 6B, 6C, 91, 9B, 9C) provided between the first input rotation axis and the output rotation axis and between the second input rotation axis and the output rotation axis, in order to convert a clockwise or anti-clockwise rotation motion on the first input rotation axis and/or on the second input rotation axis into a unidirectional rotation motion on the output rotation axis, characterized in that one of the first input rotation axes is the same as the output rotation axis.