Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 57
luence Machines. 42. The Cylinder Electric Machine. — The CylinderElectric Machine consists of a glass cylinder mountedon a horizontal axis capable of being turned by a handle.Against it is pressed from behind a cushion of leatherstuffed with horsehair, the surface of which is coveredwith a… … Fig. 31. of the form of an elongated cylinder with hemisphericalends, mounted upon a glass stand. At the end of theprime conductor nearest the cylinder is fixed a rod bear-ing a row of fine metallic spikes, resembling in form arake; the other end usually carries a rod terminated ina brass ball or…
Electricity
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