Abstract: In an air conditioning method and system for supplying conditioned air to an enclosed space, such as a room or rooms in a building, air is withdrawn from the room at separate positions located adjacent the floor and ceiling in order to advantageously utilize the effects of a convection within the room. Depending upon the season or the demand, air withdrawn from one of these positions is discharged into the atmosphere, while air withdrawn from the other of the positions is supplied, as return air, to an air conditioning unit, at which it is heated or cooled. A predetermined amount of outside air is also supplied to the air conditioning unit with the return air and the combined air flow, after treatment in the conditioning unit, is supplied to the enclosed air space or room.

Abstract: An electromagnetic transportation system for a vehicle which is adapted to travel along the inside of a tube. The system includes a series of electrical coils about the periphery of the tube which are connected to a three-phase alternating current supply. The vehicle is a capsule adapted to move within the tube and is essentially a ferro-magnetic container. The coils are energized by the three-phase alternating current supply to produce bundles of magnetic energy moving in one direction and the capsule is propelled by the magnetic energy in the same direction. The capsule also includes spaced coil members in order to utilize both radially and axially directed magnetic energy to propel the capsule in the tube and includes means to create a plurality of magnetic pole faces to increase the efficiency of propulsion.