Method of Obtaining Direct from Alternating Currents

Abstract

Superiority of alternating currents discussed; Delineates machines to convert alternating currents to direct (or continuous) currents at will at one or more points; Obtain direct currents from alternating currents; Active resistances to opposite electrical character, whereby the currents or current-waves of opposite character will be diverted through different circuits.

Patent #413353
Nikola Tesla
12.06.1889
22.10.1889