Apparatus for harnessing wind to drive a bicycle

Apparatus detachably connectable to a bicycle, said bicycle having a frame with front mounted handle means and rear mounted seat means, the bicycle having front and rear wheels secured thereto, the front wheel extending in front of the handle means, the rear wheel extending rearward from the seat means, each wheel having a corresponding axle extending therethrough, said apparatus comprising:

• a sail attachment which when connected to the bicycle harnesses wind to drive the bicycle forward, said attachment adapted to fit on the rear of the bicycle above the rear wheel and securable to the seat means, said attachment being provided with a triangular wind receiving sail which when attached to the bicycle can harness wind 45 degrees from either the left or right side of the bicycle, wind 90 degrees from either side of the bicycle and at the rear of the bicycle to power the bicycle;
• a U shaped member having two downwardly extending legs and an upper horizontal element extending therebetween with the legs being securable non-rotatably to the rear wheel axle;
• a horizontal hollow tube open at both ends secured to said element, said tube being disposed at a right angle to said element;
• a vertical hollow mast secured to the tube extending upwards therefrom;
• a horizontal boom secured at one end to the mast adjacent the lower end of the mast;
• said sail having an elongated vertical leg that is secured rotatably to the mast and a short horizontal leg secured rotatably to the boom;
• and
• a boom haul extending along the hypotenuse of the sail and spaced therefrom, the boom haul being connected between the other end of the boom and the upper end of the mast.