The duct assembly comprises sun radiation trap which employs solar energy to heat air or fumes in the duct so that the exhaust current is accelerated through the duct. The sun radiation trap pref. comprises a transparent, e.g. glass, area in the wall ...
Method for making a solar collector or converter, the converter comprising a series of at least three spaced wall members defining a plurality of flow passageways for the same or different heat exchange fluids, each passageway being in communication w...
EMPIRE OIL TOOL CY
GENERAL ELECTRIC CY
MARCONI CY LTD
A power-generating wind-driven turbine is disclosed which offers the advantage that it is compact and lightweight and is capable of producing a substantially greater output than a conventional windmill with a comparable size rotor. The turbine compris...
A conversion means converts the energy available from a source, such as the wind or sun, into a corresponding amount of d.c. electrical power. A switching circuit, typically a thyristor bridge, is connected between the conversion means and an a.c. loa...
The wind driven machine for generating electrical power has a vertical blade (1) of aerofoil section. The blade is build up from a large number of inflated sections and is mounted on a braced structure (10). The structure (10) is attached to a circula...
The generator is turned by two co-axial and co-planar rotors (1, 2) turning counter to each other on a shaft. The shaft is formed as a hollow drum and carries a number of windings distributed evenly on its outer periphery. The shaft is supported by be...
LITTLE INC ARTHUR D