Published in 1882-5, this two-volume work, illustrated throughout, appeared when electric lighting was a fresh and propitious technological development.Two half-round pieces of a double tapering form are employed; these are hollow inside for the reception of the wire, and are screwed at their ends to fit screw nuts. ... The invention includes a simple form of electro-motor in which the rotation of a vertical shaft carrying radial soft iron arms ... Thus prepared, these wires are laid parallel, and are sewn in any number in an envelope of textile material, which isanbsp;...
|Publisher||:||Cambridge University Press - 2014-12-18|