Edison and Swan Electric Light Company Edison and Swan Electric Light Company The Edison and Swan Electric Light Company Limited was a manufacturer of incandescent lamp bulbs and other electrical goods. It was formed in 1883 with the name Edison & Swan United Electric Light Company with the merger of the Swan United Electric Company and the Edison Electric Light Company. Thomas Edison established the Edison Electric Light Company in 1878. Joseph Swan established the Swan United Electric Light Company in 1881. In 1882 the American Edison Company of Thomas Edison sued Swan, claiming infringement of Edison's U.S. patent of 1879; however, they never made it
Banker's lamp and "Amronlite". Banker's lamp The banker's lamp (or Emeralite) is a style of electric table lamp characterised by a brass stand, green glass lamp shade and pull-chain switch (though modern versions may make use of alternate switch types). Other examples can feature different colors of glass. The first patent for a banker's lamp was filed on 11 May 1909 by Harrison D. McFaddin and were produced and sold under the brand name Emeralite ("emerald" and "light"). Emeralite lamp shades were produced by the J. Schreiber & Neffen factory located in the city of Rapotín, Moravia. Later competitors were sold as