Electric generator for inducing current in the field coil

摘要

An apparatus including a stationary field coil wound with copper wire; a rotatable armature comprising a plurality of lengthwise rows of magnets, each row being of a single polarity which is opposite from the polarity of the next adjacent rows; a rotatable sleeve positioned between the field coil and the armature and spaced apart from each, the sleeve comprising a plurality of lengthwise strips of material that attract magnetic flux spaced apart from each other by a strip of material that is transparent to magnetic flux, and means to rotate the armature or the sleeve while the other remains stationary.