| 摘要 |
541,775. Utilizing wave energy. SOC. D'EXPLOITATION DES BREVETS MOINEAU, Soc. AR.L. Aug. 4, 1939, No. 22667. Convention date, Aug. 8, 1938. [Also in Group XXXIII] A device for propelling a boat comprises a vane the section of which is of streamline form tapering from front to rear and having a movement in a plane perpendicular to the direction of movement of the boat, the vane remaining substantially parallel to itself. The Figure shows a boat provided with fixed horizontal and vertical vanes 35, 36, the movement of the vanes being due to the rolling of the boat by wave or wind action. |
