The Best Form of Windmill.

Progress, Volume II, Issue I, 1 November 1906, Page 11

The Best Form of Windmill.

Sourensen, the Danish builder of windmills, recently discovered, through an accident, a form of windmill which tests show to develop more power than any other form heretofore tested. He had been running an old mill bearing ten wooden vanes. In a storm, four of these vanes were carried away, when, to the wonder of its proprietor, the old mill worked better than before. Inspired by this demonstration, he made some further experiments, and perfected a wind motor of conical form, having six vanes, the ends of which curved toward the summit of the cone. Prof. P. LaCour, who has established, by authority of the Danish Government, an observatory for the study of wind power, showed that the new conical aeromotor developed more power by nearly five per cent, than that of the " Ventocrat " type, whose surface is seven times as great ; and thirty-one per cent, more than the "Rose of the Winds " type, with a surface three times as great ; and twenty-nme per cent more than that of the old Sourensen type. It is predicted that the discovery of this new form of wind engine will go far towards making wind power, which is now largely lost, available for general use.