Abstract: An arrangement for harnessing wind energy has a platform pivotably supported on a base for movement in a horizontal plane with a pair of elongated arms diverging from the base and each supporting cogwheels at opposite ends with an endless support arrangement extending along opposite sides of the arms and about the opposed cogwheels. The endless support has a plurality of vanes or sails distributed therealong so that the vanes on the outside sides of the arms are influenced by incident wind to cause the endless support to move along the arms, imparting a rotary motion to the cogwheels, which motion is coupled to an electrical generating arrangement to provide an electrical output.

Abstract: The present invention relates to a fan unit which may be used either as a floor fan or as a window mounted fan. When used as a floor fan, the frame is supported on the floor and the motor driven fan unit, which is pivotally connected to the frame, may be rotated to provide air flow in any direction. The fan unit comprises an open frame having a motor driven fan connected to the rear portion thereof, a pair of protruding pins on the frame front portion which engage the window on the outside thereof, and a second pair of protruding pins on the frame front portion which engage the window frame on the inside thereof. The motor driven fan is suspended in this manner inwardly away from the window opening such that the cantilever effect produced thereby pulls the first pins inwardly against the window and pushes the second pins outwardly against the window frame.