Dear Sir, my computer use software as Win95+office97+netscape(gold),thanks. Invention - New Principle Vertical Axle Windmill One of my invention concerns with wind power has been completed. I hope it to make contribution to the energy generation of the world. I had created the machine and tested in turn round, it worked perfectly. I'm going to introduce my invention this paper. The significance of my invention is to make windmill more economical, more efficiently, more practically and to lower machine cost and generating cost, its characteristic as follows: 1. Succeeded theory and principle verified by real machine. 2. It is a vertical axle type of windmill different from any nowadays wind power. 3. It make use of lower tower to support the machine and sharply reducing the cost of manufacture. Upon a low tower, it can be made huge size and any small size for suitable occasion. 4. Less overturning. 5. Dynamic power easily to transmit to the ground position, the generator and other machine are to be settled on ground level, very easily to repair and maintain. 6. It can be devised as array on a tower. 7. It need not to track windward, any wind direction acting on made The same effect. 8. Lower wind-speed can be used to generate the machine. It can be protected under strong wind. 9. Easily to fit it and much of the cost of assemble can be reduced, and its term. 10. Different from Darrieus type ,my invention need no adding extra power, and different from Savonius type, it works more efficiently. 11. The general cost of a machine would be reduced by the lower tower height, and because no windward followed mechanics, ground level generator settled, the cost would further reduced, even the convenience of repair and maintenance can reduce expense, general cost would be reduced up to 40% to nowadays windmill. 12. It makes use of simply mechanics to form the machine, can be made in traditional techniques, without very advanced technique to be used .It need not to research blade very hardly to design it to be efficiency one. Dong Yi China Apr. 1998 My other inventions: 1. Light diode , to transmit light and it's energy as an electronic diode, can be very large area or tiny one , low cost . For agricultural use and communicational use. (1993 ) 2. Energy-saving building , to save much energy in heating or cooling building as season and make renewable energy to be utilized. (1995 ) 3. Non-switch railway system , to form advanced vehicle that can be auto-controlled , no driver , high efficiency , free from schedule , easily to be manufactured. (1986 ) 4. My patent : for 3D manufacture CN860209811U. ( 1986 ) COMPARSION NORMAL TYPE * MY INVENTION General cost 1 <1x60% Working machine *same cost and weight and mechanical complexity Design and making blade turbine *easier than it Generator type *the same Generator assemble top position on a tower *ground level Tower higher than radius of blade turbine *very low height as several meters Fitting upon higher tower *normal lift equipment to be used Wind direction track mechanics followed and control * no system Maintain and repair up a tower * ground level Efficiency *lower wind speed to turn than blade turbines and much more efficiency than other type of vertical axle wind power