Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 900
rs the indicator by the wire, C, passes into anelectromagnet, E, which when the current is closed attracts an armature ofsoft iron. A, fixed at the end of a horizontal lever movable about an axis, x;when the current is open the lever is raised by a spring r. By means of twoscrews, m and v, the… … iii;. £50. between two copper rollers with a rough surface, //■, and turning in contrarydirections. Drawn in the direction of the arrows, the band of paper becomes•i*elled on a second drum, Q, which is turned by hand. A clockwork motionplaced in the box, HI), works the rollers, between which the…
Physics
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-541-367.webp)
