A manual of electricity, magnetism and meteorology (1844)
Lardner, Dionysius, 1793-1859, Walker, Charles Vincent, 1812-1882 · London Longman, Brown, Green & Longmans · leaf 564
six magnetized bars of steel, bent intoa horse-shoe form, arranged vertically, and supported by four screws fixedto the board B, two of which are seen at M N (fig. 292.). A thick bar ofbrass C is pieced in its centre by an opening, into which passes a bolt witha nut, for the purpose of securing the… … of the apparatus. D represents the armature of a double cylinder of softiron O F, which is fixed to a brass screw placed between the poles of thebattery A. This piece is set in motion in the manner indicated in Jig. 292.,oy means of the wheel E, of an axis of rotation, and an endless cord. Oneach…
Atmospheric electricity · Electricity -- Early works to 1850 · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
