| 摘要 |
PURPOSE:To obtain a boat propulsion by applying a windmill installed aboard. CONSTITUTION:A mast 2 is planted on the hull 1. A mount 4 is installed at the tip of the mast 2 with a pivot 3 in such a way that it may rotate freely. An arm 7 is supported by a shaft 5 on the mount 4 so as to allow a free rotating motion. The arm 7 is provided with a rotatable shaft support member of a windmill 12. A long hole 15 is provided at the end of the shaft support member of the windmill 12. A pin 16 provided in the mount 4 is fitted into the long hole. |
